Relevant bibliographies by topics / Coloring Agents

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Coloring Agents'

Author: Grafiati
Published: 4 June 2021
Last updated: 29 July 2024

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Journal articles on the topic "Coloring Agents"

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Cherviak, Sofia, Nadezhda Anikina, Marianna Ermikhina, Antonina Vesyutova, and Dmitrii Pogorelov. "Methods to detect color imitation of red wines." E3S Web of Conferences 361 (2022): 04011. http://dx.doi.org/10.1051/e3sconf/202236104011.

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The most traditional object of falsification, taking into account the volume of consumption and cost, is wine. A significant proportion of adulteration of red wines accounts for the imitation of their color by introducing color compounding ingredients to white base wine: synthetic coloring agents, natural food coloring agents, or products with a secondary coloring effect. The purpose of this research was to study physicochemical parameters of original red wines and fakes obtained using coloring agents of different origin. It was shown that monomeric anthocyanins were absent in model systems with the addition of synthetic coloring agents, and the extinction maximum did not correspond to the wavelength of 520 nm, typical for original wines. It was found that, regardless of the nature of color compounding ingredient, the content of phenolic substances in model samples did not exceed 900 mg/l. The mass concentration of monomeric anthocyanins in model samples with the addition of natural coloring agent did not exceed 2% of the total amount of phenolic substances. Therefore, the quantitative content of monomeric anthocyanins, phenolic substances, spectral characteristics can be recommended as criteria in a plan of actions to identify the authenticity of juice and wine products.
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Friska Mauludifia and Shanintya Dhivya Astrinia. "PRODUKSI SERBUK PEWARNA ALAMI DARI BUNGA TELANG (CLITORIA TERNATEA L.) DENGAN TRAY DRYER YANG DIDEHUMIDIFIKASI ZEOLIT." Media Informasi Penelitian Kabupaten Semarang 3, no. 2 (December 3, 2020): 221–31. http://dx.doi.org/10.55606/sinov.v3i2.16.

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[Production of Natural Colorant Powder from Clitoria ternatea L. using Zeolite-Dehumidified Tray Dryer] One of food additives that are usually added to food is coloring agents. The use of synthetic colorant in food products often causes health problems. Telang flowers, or Clitoria ternatea L., have blue color that indicates the presence of anthocyanins. Referring to this, the flowers can potentially become natural coloring agents. This research aims to yield colorant powder, study the effect of pH and temperature on anthocyanin content, study the effect of temperature and addition of maltodextrin on drying process. The research was conducted in two main stages, namely extraction and drying. The extract is varied in its pH to obtain pH with highest anthocyanin. Drying was carried out with variations in maltodextrin concentrations of 0 and 8%; temperatures of 30, 40, 50, 60, 70 and 80°C; and rate of drying air 3 m/s. The results showed that at pH 2, the highest total anthocyanin was obtained. The higher the drying temperature and maltodextrin concentration that is added, the drying process will be faster. Increasing the temperature causes the anthocyanin concentration obtained to be smaller.
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Rarassari, Madyasta Anggana, Ira Gusti Riani, Nia Boru Ritonga, and Gemala Cahya. "Sosialisasi Penyalahgunaan Zat Pewarna Dan Pengawet Makanan Berbahaya Sebagai Upaya Penjaminan Keamanan Pangan." Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal 6, no. 3 (July 10, 2023): 398–403. http://dx.doi.org/10.33330/jurdimas.v6i3.2503.

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Abstract: The purpose of this service activity is to educate students about coloring agents and harmful preservatives used in food. It is expected that students can know in detail about the dangers of dyes and preservatives so that students' awareness of food vigilance can increase. The target to be achieved in this community service activity is that students can gain knowledge and information about coloring agents and preservatives found in food. The strategy used in providing knowledge about the dangers of coloring agents and preservatives in food is by directly giving direct lectures on various kinds of coloring agents and preservatives used in food, the potential dangers that will be caused if consuming foods with excessive coloring agents and preservatives along with characteristics of food with coloring agents and preservatives as well. Students are expected to be able to avoid foods that are indicated to use coloring agents and preservatives and to find safe food solutions using natural coloring agents and preservatives.Keywords: Dye; dangerous food; preservatives Abstrak: Produsen makanan sering menambahkan pewarna pada makanan untuk meningkatkan warna makanan, namun kini semakin banyak makanan yang mengandung pewarna sintetis yang ditambahkan. Tujuan kegiatan pengabdian ini adalah memberikan edukasi kepada para siswa mengenai zat pewarna dan zat pengawet berbahaya yang digunakan pada makanan. Diharapkan para siswa dapat mengetahui secara terperinci mengenai bahaya zat pewarna dan pengawet sehingga kesadaran siswa dalam menerapkan kewaspadaan terhadap makanan dapat meningkat. Target yang ingin dicapat pada kegiatan pengabdian ini adalah para siswa dapat memperoleh pengetahuan dan infomasi mengenai zat pewarna dan zat pengawet yang terdapat pada makanan. Strategi yang digunakan dalam memberikan pengetahuan mengenai bahaya zat pewarna dan pengawet pada makanan yaitu dengan langsung memberikan ceramah langsung mengenai berbagai macam zat pewarna dan zat pengawet yang digunakan pada makanan, potensi bahaya yang akan ditimbulkan apabila mengkonsumsi makanan dengan zat pewarna dan zat pengawet yang berlebihan beserta ciri-ciri makanan dengan zat pewarna dan zat pengawet serta. Para siswa diharapkan dapat menghindari makanan yang terindikasi menggunakan zat pewarna dan zat pengawet serta mendapatkan solusi makanan yang aman dengan menggunakan zat pewarna dan pengawet yang alami.Kata kunci: makanan berbahaya; zat pewarna; zat pengawet
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Sano, Kazuo, and Hiromitsu Ishii. "Identification of Coloring Agents Causing Poor Coloring Reproducibility in Computerized Color Matching." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 86, no. 2 (2002): 67–83. http://dx.doi.org/10.2150/jieij1980.86.2_67.

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SANO, Kazuo, and Hiromitsu ISHII. "Identification of Coloring Agents Causing Poor Coloring Reproducibility in Computerized Color Matching." Journal of Light & Visual Environment 28, no. 1 (2004): 14–34. http://dx.doi.org/10.2150/jlve.28.14.

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Marcoux, Danielle, and Gisèle Riboulet-Delmas. "Efficacy and Safety of Hair-Coloring Agents." American Journal of Contact Dermatitis 5, no. 3 (September 1994): 123–29. http://dx.doi.org/10.1097/01634989-199409000-00001.

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Marcoux, Danielle, and Gisèle Riboulet-Delmas. "Efficacy and Safety of Hair-Coloring Agents." Dermatitis 5, no. 3 (September 1994): 123–29. http://dx.doi.org/10.1097/01206501-199409000-00001.

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Setiawan, Doni, Rivana Ariyadi, Euis Tia Istianah, Aldi Febriansyah, Amanda Tyas Zaharani, Chintya Nur Aeni, Desry Delia Futri, et al. "Edukasi Zat Pewarna Pangan Berbahaya Di SMA Negeri 1 Sukadana." Daarul Ilmi: Jurnal Pengabdian Kepada Masyarakat 1, no. 2 (December 31, 2023): 75–84. http://dx.doi.org/10.52221/daipkm.v1i2.410.

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Introduction: In general, food coloring can be obtained from natural dyes and safe synthetic food dyes. Natural dyes are sometimes considered less stable and less durable than synthetic food dyes. Although there are synthetic dyes that are safe for food, there are still people who use materials that are not suitable for use in food. The use of harmful food dyes must be monitored and recognized for their existence. Harmful food dyes that are commonly found are textile dyes such as Rhodamine B or methanyl yellow. Because it is not a proper food coloring, consumption of foods containing this ingredient can cause a series of health problems for those who consume it, especially in a relatively long period of time. This education aims to allow students to distinguish foods that use natural coloring agents and artificial coloring agents. The results of this activity students can find out the characteristics of foods that use harmful dyes and know the prevention that can be done. Objective: The purpose of this service is for SMAN 1 SUKADANA students to know the dangers of using hazardous coloring agents in food. Method: The method used is providing education by providing material to students, tests before and after material on the Use of Harmful Coloring Substances in Food. Result: Increased knowledge and attitudes of students are tested through pre-test and post-test. There has been an increase in knowledge in students about the dangers of using harmful dyes in food in general by 20%, so that the realization of the purpose of this service is expected to be able to distinguish food ingredients that contain harmful coloring agents in food and those that do not contain harmful coloring agents in food. Basically, knowledge and attitudes also depend on the high or low level of education of students. Therefore, the existence of this counseling can help students in adding insight into the dangers of using harmful dyes. The implementation of this activity can run well due to positive support in the implementation process, where support from various parties and there are no obstacles whatsoever. Conclusion: The socialization activity on the use of dangerous coloring substances in food to students at SMAN 1 Sukadana received a good response from the school and also students. With outreach activities regarding this, students will understand and be more careful in choosing food to avoid these chemicals.
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Kwon, Eun-Ja, Esther Choi, Gyu-Sun Lee, and Chae-Hyun Lee. "Effect of MgO and coloring agents on the coloring in zirconia-glass frit system." Journal of the Korea Academia-Industrial cooperation Society 10, no. 8 (August 31, 2009): 2150–56. http://dx.doi.org/10.5762/kais.2009.10.8.2150.

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TAKAHASHI, Rika. "The Global Regulatory Status of Cosmetic Coloring Agents." Journal of the Japan Society of Colour Material 90, no. 11 (2017): 398–402. http://dx.doi.org/10.4011/shikizai.90.398.

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Dissertations / Theses on the topic "Coloring Agents"

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Lago, Maristela. "INFLUÊNCIA DE AGENTES CLAREADORES NA COR DE RESINAS COMPOSTAS DE DIFERENTES OPACIDADES ARMAZENADAS EM MEIOS DISTINTOS." Universidade Federal de Santa Maria, 2012. http://repositorio.ufsm.br/handle/1/6086.

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The aim of this study was to evaluate the influence of two bleaching agents on color of one composite resin (Filtek Z350 XT - 3M ESPE) in the opacities of enamel and dentin, previously subjected to the action of deionized water or red wine. Sixty specimens (sp) were made for each composite resin using a metal matrix with 8 mm diameter and 2 mm thickness. Immediately after polymerization with LED (Emitter Schuster / Santa Maria Rio Grande do Sul, Brasil) for 40 s, the sp were polished with Diamond Pro discs (FGM / Joinvile SC, Brasil), and felt discs with diamond paste (Diamond Excel FGM / Joinvile SC, Brasil), then sp were washed in water and dried. The sp were divided into two groups for each opacity: immersed in red wine or deionized water for 14 days and then divided into three subgroups: one group subjected to bleaching with hydrogen peroxide 35% (Mix One Lot: 043 - Dental Villevie Brasil Ltda), one group submitted to bleaching with carbamide peroxide 16% (Mix Night - Lot: 007 - Dental Villevie Brasil Ltda) and one group not subjected to bleaching. Successive measurements were conducted 24 hours after polishing procedures, after 14 days of immersion on their respective immersion media, and after the action of the bleaching agents, using a spectrophotometer (SP60 EX-Rite / Grand Rapid Michigan, USA), with CIE L* a* b* system. Data were analyzed with t-test, one-way ANOVA, and Tukey (5%). Red wine caused significant color change in the composites in relation to water, and the enamel resin presented greater color change than the dentin resin. Bleaching agents partially removed the pigmentation of the sp which were immersed in wine, and the carbamide peroxide showed more significant results. The bleaching agents did not determine significant results when the sp were immersed in water. Red wine had great influence on the color change of composite resins and water caused no significant color change. The bleaching agents were capable of partial removal of the pigmentation produced by red wine.
Este trabalho teve por objetivo avaliar a influência de dois agentes clareadores sobre a cor de uma resina composta (Filtek Z350 XT 3M ESPE) nas opacidades de esmalte e dentina, previamente submetidas à ação de água deionizada ou vinho tinto suave. Foram confeccionados 60 corpos-de-prova (cps) para cada resina composta utilizando uma matriz metálica com 8 mm de diâmetro e 2 mm de espessura. Imediatamente após a fotoativação com um LED (Emitter Schuster / Santa Maria Rio Grande do Sul, Brasil) por 40s, os cps foram polidos com discos Diamond Pro (FGM / Joinvile SC, Brasil) e disco de feltro com pasta diamantada (Diamond Excel FGM / Joinvile SC, Brasil), lavados em água e secos. Os cps foram divididos em 2 grupos para cada opacidade: imersos em vinho tinto suave ou em água deionizada, por 14 dias e subdivididos em 3 subgrupos: um grupo submetido ao clareamento com peróxido de hidrogênio 35% (Mix One Lot: 043 - Dental Villevie Brasil Ltda), um grupo submetido ao clareamento com peróxido de carbamida 16% (Mix Night - Lot: 007 - Dental Villevie Brasil Ltda) e um grupo não submetido ao clareamento. Sucessivas leituras foram realizadas após 24 horas da confecção dos corpos-de-prova (inicial), após 14 dias de imersão nos respectivos meios; e após a ação de agentes clareadores utilizando um espectrofotômetro (SP60 EX-Rite / Grand Rapid Michigan, USA), com o sistema CIE L* a* b*. Os dados foram submetidos ao Teste t, análise de variância uma via e Tukey (5%). O vinho tinto suave causou significativa alteração de cor nas resinas compostas em relação à água, sendo que, a resina composta de esmalte sofreu maior alteração de cor que a de resina composta de dentina. Os agentes clareadores removeram parcialmente o pigmento dos cps que foram imersos em vinho, sendo que o peróxido de carbamida apresentou resultados mais significativos. Já quando os cps foram imersos em água os agentes clareadores não determinaram resultados relevantes. O vinho tinto suave teve grande influência na alteração de cor das resinas compostas e a água não causou alteração de cor significativa. Os géis clareadores foram capazes de fazer a remoção parcial da pigmentação produzida pelo vinho tinto.
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Flores, Felipe Wehner. "Avaliação da cor de bráquetes estéticos quando submetidos ao desafio corante." Universidade Federal de Santa Maria, 2013. http://repositorio.ufsm.br/handle/1/6127.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
This study aimed to determine the color stability of aesthetic brackets (plastic and ceramic) when stored in red wine, subjected to daily baths of wine, and immersed in distilled water for different periods. With the aid of a spectrophotometer (SP60 - XRite) and using the CIE L * a * b * system, the initial color parameters and after 15, 30, and 45 days were measured. Brackets of different composition and trademarks were evaluated: Composite (polycarbonate) and Ceramic (polycrystalline ceramic)from Dental Morelli, Maia (polycrystalline ceramic) and Zetta (monocrystalline ceramic)from Eurodonto Orthodontic Products. After the initial color measurements, brackets were divided into 12 groups (n = 10) according to storage media and trademark. The control group remained immersed in distilled water, the wine test group received daily baths of red wine for 15 minutes during the entire period of the study and the immersion test group remained immersed in red wine throughout the study. Repeated readings were performed at 15, 30,and 45 days. Data were submitted to ANOVA and Tukey s test (5%). Color changes were observed in all tested materials, with the greatest change found in group immersioned in red wine, followed by the group subjected to daily baths, and the group stored in distilled water. The polycarbonate showed the greatest color change comparing to ceramics, and the polycrystalline ceramic demonstrated greater color change than monocrystalline ceramic. For all tested groups, the longer the period the greater the changes in color. The type of material and the time in contact with the staining agente had a directly influence in the color stability of brackets.
O presente trabalho teve como objetivo verificar a estabilidade de cor de bráquetes estéticos (plásticos e cerâmicos) quando armazenados em vinho tinto, submetidos a banhos diários de vinho tinto e imerso em água destilada, durante períodos de tempo distintos. Com o uso de um espectrofotômetro (SP60 - X-Rite), empregando o sistema CIE L* a* b*, os parâmetros de cor inicial e após 15, 30e 45 dias foram aferidos. Bráquetes de diferentes composições e marcas comerciais foram avaliados: Composite (policarbonato) e Ceramic (cerâmica policristalina) da Dental Morelli, Maia (cerâmica policristalina) e Zetta (cerâmica monocristalina),da Eurodonto Produtos Ortodônticos. Após a mensuração da cor inicial, os bráquetes foram divididos em 12 grupos (n=10) de acordo com os meios de armazenamento e marca comercial. O grupo controle permaneceu imerso em água destilada, o grupo teste de banho em vinho foi colocado em vinho tinto por 15 minutos diários durante o período do estudo e o grupo teste de imersão permaneceu imerso em vinho tinto durante todo o período dos testes. Sucessivas leituras foram realizadas nos períodos de 15, 30 e 45 dias. Os dados foram submetidos à Análise de Variância e teste de Tukey (5%).Encontrou-se alteração de cor em todos os materiais testados, sendo a maior encontrada na imersão contínua em vinho tinto, seguida do grupo submetido a banhos diários e do grupo em água destilada. O policarbonato sofreu a maior alteração de cor em relação às cerâmicas e a cerâmica policristalina sofreu maior alteração de cor em relação à cerâmica monocristalina. Em tempos mais longos houve maior alteração em todos os grupos. O tipo de material e o tempo de contato com a substância corante influenciaram diretamente na estabilidade da cor dos bráquetes.
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Kaizer, Marina da Rosa. "TRANSLUCIDEZ DE RESINAS COMPOSTAS CONSTITUÍDAS POR DIFERENTES MONÔMEROS EM MEIOS E TEMPOS DE ARMAZENAMENTO DISTINTOS." Universidade Federal de Santa Maria, 2010. http://repositorio.ufsm.br/handle/1/6071.

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The aim of this study was to determine translucency of composite resins formed by different monomers when stored in two distinct environments (immersed in dis tilled water and red wine) and periods of time (immediately after curing, 24h and 30 days). Also two methods for translucency evaluation (Translucency Parameter and Percentage of Opacity) were compared. Three composite resins were tested: one silorane-based (Filtek P90) and two metacrilate-based (Filtek Z350 and Rok). Fourteen specimens (sp) were made for each composite using a metallic matrix with 10 mm of diameter and 2 mm of thickness. Immediately after light curing using a LED (±800mW/cm2) for 40 seconds, sp were polished with Sof-Lex Pop On Orange Series discs and with felt and diamond paste, then sp were washed in water and dried. Immediately after polishing, the initial translucency was measured with the spectrophotometer SP60 - X-Rite using the CIE L * a * b * system. Then the sp of each composite resin was divided into two groups (n = 7) according to the storage media. Successive readings were conducted in periods of 24 hours and 30 days. Data were submitted to ANOVA and Tukey s test (5%) to compare the means of the groups. The silorane-based composite resin showed less translucency changes than metacrilate-based resins, only when stored in wine. In deionized water the modification of P90 was greater than other resins, improving the translucency. All composites presented more alteration when stored in wine than in water, and such variation was higher in longer periods of storage. No differences were found between the methods of evaluation. Both methods of translucency evaluation demonstrated similar results. The translucency of composites was more affected by the red wine than by the water and the longer the period of contact with this substance the greater the modification. The type of monomer seems to be a factor that will influence the translucency changes of composite resins. The variation of translucency can be measured by the two tested methods
O objetivo deste trabalho foi verificar a translucidez de resinas compostas constituídas por diferentes monômeros, quando armazenadas em meios (imersos em água e em vinho tinto suave) e períodos distintos (imediatamente após a fotoativação, 24h e 30 dias). Também foram comparados dois métodos de análise de translucidez (Parâmetro de Translucidez e o Percentual de Opacidade) das resinas compostas. Três resinas compostas foram utilizadas, uma a base de silorano (Filtek P90) e duas a base de metacrilatos (Filtek Z350 e Rok). Foram confeccionados 14 corpos-de-prova (cps) para cada resina composta, utilizando uma matriz metálica com 10 mm de diâmetro e 2 mm de espessura. Imediatamente após a fotoativação com uma fonte de luz LED (±800mW/cm2), por 40s, os cps foram polidos com discos Sof-Lex Pop On e disco de feltro com pasta diamantada, lavados em água e secos com gaze. A translucidez inicial dos cps foi aferida imediatamente após o polimento com o espectrofotômetro SP60 - X-Rite, utilizando o sistema CIE L* a* b*. Os cps de cada resina composta foram divididos em dois grupos (n=7) de acordo com os meios de armazenamento. Sucessivas leituras foram realizadas nos períodos de 24h e 30 dias. Os dados foram submetidos à Análise de Variância e Teste de Tukey (5%). A resina a base de silorano apresentou menor variação de translucidez, que as resinas a base de metacrilatos, apenas, quando armazenada em vinho. Já em água deionizada, a variação da P90 foi maior que nas demais, ficando mais translucida. Todas as resinas apresentaram maior alteração de translucidez, quando armazenadas em vinho do que em água, e esta variação foi maior no período de trinta dias. O tipo de monômero parece ser um fator que irá influenciar a variação da translucidez da resina composta. A variação de translucidez pôde ser aferida pelos dois métodos testados de forma semelhante.
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Tarantik, Karina. "Investigation of New More Environmentally Benign, Smoke-reduced, Red- and Green-light Emitting Pyrotechnic Compositions Based on Nitrogen-rich Coloring Agents." Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-118941.

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Ide, Edson. "Cromoscopia óptica com tecnologia de banda estreita versus cromoscopia com solução de Lugol no diagnóstico do carcinoma superficial de esôfago em pacientes com câncer de cabeça e pescoço." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/5/5154/tde-03092010-103902/.

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Presente estudo teve como objetivo avaliar a utilização da tecnologia de banda estreita com filtros ópticos (TBE) no rastreamento do carcinoma espinocelular do esôfago (CEC), utilizando como método comparativo a cromoscopia com a solução de Lugol. Trata-se de um estudo prospectivo de teste de diagnóstico, para o qual foram avaliados 129 pacientes do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HC-FMUSP), com diagnóstico de carcinoma epidermóide de cabeça e pescoço, em programa de rastreamento de tumores secundários, no período de agosto de 2006 a fevereiro de 2007. Os exames de endoscopia convencional, TBE e a cromoscopia com Lugol foram realizados consecutivamente em um mesmo procedimento, e as lesões encontradas foram registradas e submetidas a biópsias. Foram calculados para cada método valores da sensibilidade, especificidade, acurácia, valores preditivos positivos e negativos, valores de verossimilhança positivo e negativo. Foram diagnosticados nove carcinomas superficiais (7%), sendo cinco carcinomas in situ e quatro carcinomas intramucosos, todos detectados pelo TBE e pelo Lugol, porém apenas seis foram diagnosticados pelo exame convencional e destes, nenhum foi menor ou igual a 10 mm. A tecnologia de bandas estreitas com filtros ópticos (TBE) sem magnificação de imagem apresentou resultados superponíveis a cromoscopia com Lugol, método atualmente de escolha para rastreamento do CEC esofágico em grupos de pacientes de alto risco, portadores de tumores de cabeça e pescoço
Background and study aims: The aim of this study was to compare narrow band imaging (NBI) without magnification and chromoendoscopy with Lugols solution for detecting superficial esophageal squamous cell carcinoma in patients with head and neck cancer. Patients and methods: This is a prospective observational study of 129 patients with primary head and neck tumors consecutively referred to the Gastrointestinal Endoscopy Unit of Hospital das Clínicas, São Paulo University Medical School (FMUSP), Brazil, between August 2006 and February 2007. Conventional examinations, NBI and Lugol chromoendoscopy were consecutively performed, and the detected lesions were mapped, recorded and sent for biopsy. The results of the three methods were compared regarding sensitivity, specificity, accuracy, positive predictive value, negative predictive value, positive likelihood value and negative likelihood value. Results: Of the 129 patients, nine (7%) were diagnosed with carcinomas, five of which were in situ and four intramucosal. All carcinomas were detected through NBI and Lugol chromoendoscopy. Only six lesions were diagnosed by conventional examination, all of which were larger than 10 mm. Conclusions: Narrow-band imaging technology with optical filters has high sensitivity and high negative predictive value for detecting superficial esophageal squamous cell carcinomas and produces results comparable to those obtained with 2.0% Lugol chromoendoscopy in patients with head and neck cancer
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Zago, Renata Ragagnin. "INFLUÊNCIA DO PREPARO DO ESMALTE NO MANCHAMENTO MARGINAL DE LAMINADOS CERÂMICOS." Universidade Federal de Santa Maria, 2014. http://repositorio.ufsm.br/handle/1/6152.

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The aim of this study was to evaluate the marginal staining of ceramic laminates cemented with and without the presence of enamel preparation. Thirty-two (32) permanent central incisors were selected and randomly divided into two groups (CP and SP). In group-CP (n = 16) the laminates were bonded to the prepared enamel and in group-SP (n=16) laminates were cemented directly over the intact enamel, with no preparation. The preparation and cementation were standardized and performed by a single operator. Each group was subdivided into two subgroups (n = 8) which correspond to different immersion media - coffee and water ( SPc , SPa , CPc and CPa ). After an immersion period of 10 days, stereomicroscope pictures with 20X of the mesial, distal, cervical and incisal surface of each specimen were made. The interfaces tooth - resin cement - laminate were evaluated by three blind, trained and calibrated examiners. Data were subjected to statistical Kruskal - Wallis and Mann - Whitney analysis. The prepared group as well as the unprepared group showed higher marginal staining when immersed in coffee. When immersed in coffee, the prepared laminates presented more marginal staining then unprepared laminates. But when immersed in water there was no statistically significant difference between the groups. The adhesive interface of ceramic laminates cemented on prepared enamel presented more marginal staining than laminates cemented on intact enamel, with no preparation, after immersion in staining solution.
O objetivo deste trabalho foi avaliar o manchamento marginal de laminados cerâmicos cimentados com e sem a presença de preparo do esmalte. Trinta e dois (32) incisivos inferiores permanentes hígidos foram selecionados e aleatoriamente divididos em dois grupos (CP e SP). No grupo CP (n=16) os laminados foram cimentados sobre o esmalte preparado e no grupo SP (n=16) os laminados foram cimentados diretamente sobre o esmalte intacto, sem preparo. Os preparos e a cimentação foram padronizados e realizados por um único operador. Cada grupo foi subdividido em dois subgrupos (n=8) que correspondem a diferentes meios de imersão café e água (SPc, SPa, CPc e CPa). Após um período de imersão de 10 dias, foram feitas imagens em Estereomicroscópio com aumento de 20X das faces mesial, distal, cervical e incisal de cada corpo de prova. As interfaces dente - cimento resinoso - laminado foram avaliadas por três examinadores cegos, treinados e calibrados. Os dados foram submetidos aos testes estatísticos Kruskal-Wallis e Mann-Whitney. Os corpos de prova imersos no café apresentaram maior manchamento que os imersos na água, tanto no grupo com preparo como no sem preparo. As interfaces dos laminados com preparo mancharam mais do que os sem preparo quando imersos em café. Porém quando imersos em água não houve diferença estatisticamente significante entre os grupos. Pode-se concluir que a interface adesiva de laminados cerâmicos cimentados sobre esmalte preparado apresenta maior manchamento do que os laminados cimentados sobre o esmalte intacto quando submersos em solução corante.
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Pauff, Steven M. "Advancements in the Synthesis and Application of Near-Infrared Imaging Reagents: A Dissertation." eScholarship@UMMS, 2015. https://escholarship.umassmed.edu/gsbs_diss/751.

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Fluorescence-based imaging techniques provide a simple, highly sensitive method of studying live cells and whole organisms in real time. Without question, fluorophores such as GFP, fluorescein, and rhodamines have contributed vastly to our understanding of both cell biology and biochemistry. However, most of the fluorescent molecules currently utilized suffer from one major drawback, the use of visible light. Due to cellular autofluorescence and the absorbance of incident light by cellular components, fluorescence imaging with visible wavelength fluorophores often results in high background noise and thus a low signal-to-noise ratio. Fortunately, this situation can be ameliorated by altering the wavelength of light used during imaging. Near-infrared (NIR) light (650-900 nm) is poorly absorbed by cells; therefore, fluorophores excited by this light provide a high signal-to-noise ratio and low background in cellular systems. While these properties make NIR fluorophores ideal for cellular imaging, most currently available NIR molecules cannot be used in live cells. The first half of this thesis addresses the synthetic difficulties associated with preparing NIR fluorophores that can be used within living systems. Small molecule NIR fluorophores are inherently hydrophobic which makes them unsuitable for use in the aqueous environment of the cell. Water-solubility is imparted to these dyes through highly polar sulfonates, which subsequently prevents the dyes from entering the cell. The novel work presented here details vii synthetic routes to aid in the development of sulfonated NIR fluorophores, which can be delivered into live cells through the inclusion of an esterase-labile sulfonate protecting group. Application of these synthetic techniques should allow for the development of novel NIR fluorophores with intracellular applications. The second half of this thesis addresses the need for novel NIR imaging reagents. Although several classes of NIR scaffolds do exist, most NIR probes are derivatives of a single class, heptamethine indocyanines. The work described here increases this palette by displaying the ability of NIR oxazines to function as an imaging reagent in live cells and in vivo and as a molecular sensor of biologically-relevant environmental conditions. Combined, the work contained herein has the capacity to not only advance the current NIR toolkit, but to expand it so that fluorescence imaging can move out of the dark and into the NIR light.
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Pauff, Steven M. "Advancements in the Synthesis and Application of Near-Infrared Imaging Reagents: A Dissertation." eScholarship@UMMS, 2001. http://escholarship.umassmed.edu/gsbs_diss/751.

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Fluorescence-based imaging techniques provide a simple, highly sensitive method of studying live cells and whole organisms in real time. Without question, fluorophores such as GFP, fluorescein, and rhodamines have contributed vastly to our understanding of both cell biology and biochemistry. However, most of the fluorescent molecules currently utilized suffer from one major drawback, the use of visible light. Due to cellular autofluorescence and the absorbance of incident light by cellular components, fluorescence imaging with visible wavelength fluorophores often results in high background noise and thus a low signal-to-noise ratio. Fortunately, this situation can be ameliorated by altering the wavelength of light used during imaging. Near-infrared (NIR) light (650-900 nm) is poorly absorbed by cells; therefore, fluorophores excited by this light provide a high signal-to-noise ratio and low background in cellular systems. While these properties make NIR fluorophores ideal for cellular imaging, most currently available NIR molecules cannot be used in live cells. The first half of this thesis addresses the synthetic difficulties associated with preparing NIR fluorophores that can be used within living systems. Small molecule NIR fluorophores are inherently hydrophobic which makes them unsuitable for use in the aqueous environment of the cell. Water-solubility is imparted to these dyes through highly polar sulfonates, which subsequently prevents the dyes from entering the cell. The novel work presented here details vii synthetic routes to aid in the development of sulfonated NIR fluorophores, which can be delivered into live cells through the inclusion of an esterase-labile sulfonate protecting group. Application of these synthetic techniques should allow for the development of novel NIR fluorophores with intracellular applications. The second half of this thesis addresses the need for novel NIR imaging reagents. Although several classes of NIR scaffolds do exist, most NIR probes are derivatives of a single class, heptamethine indocyanines. The work described here increases this palette by displaying the ability of NIR oxazines to function as an imaging reagent in live cells and in vivo and as a molecular sensor of biologically-relevant environmental conditions. Combined, the work contained herein has the capacity to not only advance the current NIR toolkit, but to expand it so that fluorescence imaging can move out of the dark and into the NIR light.
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Alves, José Roberto 1980. "Padronização da pesquisa de linfonodos sentinelas em estômago por métodos combinados = estudo experimental em coelhos = Standardization of sentinel lymph node navigation in stomach by combined methods: experimental study in rabbits." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/310592.

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Orientadores: Luiz Roberto Lopes, Celso Dario Ramos
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas
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Resumo: Introdução - Com os estudos de Gould et al. (1960), Cabanas (1977) e Morton et al. (1992), estabeleceu-se o conceito da pesquisa do linfonodo sentinela. Esse se baseia na teoria de que ao identificar a presença ou ausência de metástase no primeiro linfonodo que recebe a drenagem linfática a partir do tumor (sentinela), poderia representar o estado de acometimento dos outros linfonodos. Isto evitaria a realização desnecessária de linfadenectomias. Com o passar dos anos, foi consagrada para ser aplicada em casos de melanoma e câncer de mama. Nesta última década, tenta-se estender os princípios da utilização da pesquisa de linfonodo sentinela para os cânceres do aparelho digestivo. Entretanto, no caso do estômago, existem algumas dificuldades, como: presença de sistema de drenagem linfática multidirecional, ocorrência de metástases saltatórias e identificação de mais de um linfonodo sentinela por indivíduo. Objetivo - Criar e padronizar um modelo animal para o treinamento de pesquisa de linfonodos sentinelas em estômago. Método - Trinta e dois coelhos, saudáveis, foram submetidos à anestesia exclusivamente intramuscular. Por meio de laparotomia, foi injetado na subserosa da parede anterior do corpo gástrico, 0,1 ml de fitato marcado com tecnécio-99m (0,2 mCi), em seguida pelo mesmo orifício, de 0,2 ml de Azul Patente V® 2,5%. A cavidade abdominal foi avaliada, "in vivo", para pesquisa de suspeitas de linfonodos azuis (corados em azul) e com detector manual de radiação gamma aos 5, 10 e 20 minutos para detecção de suspeitas de linfonodos radioativos (radioatividade identificada superior a 10X o valor apresentado pelo fundo). Após 20 minutos, realizou-se ressecção e exérese total do estômago, baço e suspeitas de linfonodos, para posterior avaliação da radioatividade "ex vivo". A seguir, encaminharam-se as suspeitas de linfonodos para estudo histológico para identificação de tecido linfóide. Resultados - Foram identificados linfonodos em 30 coelhos (93,75%) com média de 2,2 por animal. Das 90 suspeitas de linfonodos detectadas, em 70 casos (77,77%) obteve-se confirmação histológica para tecido linfóide. Dessas, a maioria foi identificada e localizada na região entre o esôfago e o fundo gástrico durante a avaliação "in vivo" aos 5 minutos. Dois coelhos faleceram durante os experimentos (Taxa de mortalidade = 6,25%). Conclusão - O modelo experimental em coelhos para pesquisa de linfonodos sentinelas em estômago por métodos combinados foi factível, de fácil execução e baixa mortalidade, podendo ser usado para treinamento
Abstract: Introduction - The concept of sentinel lymph node was established by the studies of Gould et al. (1960), Cabanas (1977) and Morton et al. (1992). It is based on the theory that, whenever the presence or absence of metastasis is identified in the first lymph node that receives the lymphatic drainage from the tumor (sentinel) the status of involvement of other lymph nodes might be infered. This could avoid the performance of unnecessary lymphadenectomies. Over the years, its use was consecrated by its application in melanoma and breast cancer. In the last decade, attempts have been made to extend the principles of sentinel lymph node investigation to cancers of the digestive tract. In the case of stomach cancer, additional difficulties were found, such as multiple and aberrant lymphatic routes, the occurrence of skip metastasis and the possible identification of more than one sentinel lymph node in the same patient. Aim - To develop and evaluate an animal model for training sentinel lymph node navigation in the stomach. Methods - Thirtytwo healthy rabbits, were prepped and given intramuscular anesthesia. Through a formal laparotomy, they received a subserosal injection of 0.1 ml of phytate labeled with technetium-99m (0.2 mCi) in the anterior wall of the gastric corpus, followed by 0.2 ml of Blue Patent ® V 2.5%, through the same puncture site. Suspicious lymph nodes were searched in-vivo at 5, 10 and 20 minutes, both visually (Blue Patent stained lymph nodes) and with a manual gamma radiation detector (to detect suspected radioactive lymph nodes, displaying radioactivity levels over 10X the value displayed by the background). En-block resection of the stomach, spleen, visible limph nodes and local fat tissue was then performed and the specimen was assessed "ex vivo" for radioactivity. Suspected lymph nodes were sent for histological study to evaluate the presence of lymphoid tissue. Results - Radiolabeled or stained lymph nodes were identified in 30 rabbits (93.75%) with an average of 2.2 specimens per animal; of the 90 suspicious lymph nodes detected, histology confirmed lymphoid tissue in 70 cases (77.77%). Most lymph nodes were identified at the 5-minute in-vivo evaluation and their most common location was found to be in the region between the esophagus and the gastric fundus. Two rabbits died during the procedure resulting in a 6.25% mortality. Conclusion - The rabbit model proved adequate for training in sentinel node navigation in the stomach by combined methods (dye and radiocolloid) being easy to execute and associated with low mortality
Doutorado
Fisiopatologia Cirúrgica
Doutor em Ciências
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Siqueira, Márcia Fernanda de Rezende. "AVALIAÇÃO CLÍNICA DA INFLUÊNCIA DO CAFÉ NA EFETIVIDADE DO CLAREAMENTO DENTAL." UNIVERSIDADE ESTADUAL DE PONTA GROSSA, 2012. http://tede2.uepg.br/jspui/handle/prefix/1787.

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The objective of this clinical study was to evaluate whether exposure to coffee during the bleaching treatment with PC 16 (Whiteness Perfect, FGM,Joinville, Santa Catarina, Brazil) affects the degree of whitening and tooth sensitivity. We selected 40 patients with central incisors darker than A2, which were divided into 2 groups (n=20): GC - control group and GE - the experimental group. For the CG was no restriction of foods with dyes and the GE patients beyond the usual coffee intake in his diet made with black coffee rinses soluble Nescafé® Tradição (Nestlé), 4 times daily for 30 seconds. For both groups we used PC 16 for a period of 3 hours daily for 3 weeks. The color scale was assessed by spectrophotometer Easyshade and in the periods: initial, during the whitening (1 st, 2 nd and 3 rd week) and postbleaching (1 week and 1 month). Patients recorded their perceptions of sensitivity through the NRS scale (0-4) and VAS. For the color analysis was performed analysis of variance (ANOVA) with repeated measures on two factors (time vs. treatment groups), time being the repeated measure (=0.05). We carried out the Tukey test for contrast of means (=0.05). The tooth sensitivity was evaluated by Fisher's exact test and the intensity of tooth sensitivity was evaluated by Mann-Whitney test (=0.05) for both scales. There effectiveness of tooth whitening over time (p <0.001). For both groups was not statistical differences in absolute risk of sensitivity between the groups (p=1.0). Most patients had mild tooth sensitivity and no statistically significant difference was detected between groups for both the NRS scale (p=0.529) and for the VAS (p=0.258). It was concluded that dental bleaching is effective for the groups studied, which makes possible the consumption of coffee during the bleaching treatment.
O objetivo deste estudo clínico foi avaliar se a exposição ao café durante o tratamento clareador com PC 16% (Whiteness Perfect, FGM, Joinville, Santa Catarina, Brasil) afeta o grau de clareamento e a sensibilidade dental. Foram selecionados 40 pacientes com os incisivos centrais mais escuros que A2, os quais foram divididos em 2 grupos (n=20): GC - grupo controle e GE - grupo experimental. Para o GC houve restrição de alimentos com corantes e para o GE os pacientes, além da ingestão usual do café na sua dieta, realizaram bochecho com café preto solúvel Nescafé Tradição (Nestlé) 4 vezes ao dia, por 30 segundos. Para os dois grupos utilizou-se PC 16% pelo período de 3h diariamente, durante 3 semanas. A cor foi avaliada através da escala Vita Classical e espectrofotômetro Vita Easyshade, nos períodos: inicial, durante o clareamento dental (1ª, 2ª e 3ª semanas) e pós-clareamento (1 semana e 1 mês). Os pacientes registraram suas percepções de sensibilidade através da escala NRS (0-4) e VAS. Para a análise de cor foi efetuada ANOVA de dois fatores (grupos vs tempo de tratamento), sendo o tempo a medida repetida (=0,05). Foi realizado o teste de Tukey para o contraste das médias =0,05). A sensibilidade dental foi avaliada pelo teste exato de Fisher e a intensidade da sensibilidade dental foi avaliada pelo teste Mann-Whitney (=0,05) para ambas as escalas. Houve efetividade do clareamento dental ao longo do tempo (p<0,001). Para ambos os grupos não foi verificada diferença estatística no risco absoluto de sensibilidade entre os grupos (p=1,0). A maioria dos pacientes apresentou sensibilidade dental leve e não foi detectada diferença estatisticamente significante entre os grupos, tanto para a escala NRS (p=0,529) como para a VAS (p=0,258). Concluiu-se que o clareamento dental foi eficaz para os grupos avaliados, o que torna possível o consumo de café durante o tratamento clareador.
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Books on the topic "Coloring Agents"

1

Marmion, Daniel M. Handbook of U.S. colorants: Foods, drugs, cosmetics, and medical devices. 3rd ed. New York: Wiley, 1991.

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Science & Life Consultants Association., ed. Food coloring agents and toxicity: Index of new information with authors & subjects. Washington, DC: Abbe Publishers Association of Washington, D.C., 1994.

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McLaren, K. The colour science of dyes and pigments. 2nd ed. Bristol: A. Hilger, 1986.

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IARC Working Group on the Evaluation of Carcinogenic Risks to Humans (1992 Lyon, France). Occupational exposures of hairdressers and barbers and personal use of hair colourants: Some hair dyes, cosmetic colourants, industrial dyestuffs and aromatic amines. Lyon: IARC, 1993.

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Frank, Würthner, and Ajayaghosh A, eds. Supermolecular dye chemistry. Berlin: Springer, 2005.

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D, Bancroft John, ed. Troubleshooting histology stains. New York: Churchill Livingstone, 1998.

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Sabnis, R. W. Handbook of biological dyes and stains: Synthesis and industrial applications. Oxford: Wiley, 2010.

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Imre, Zs Nagy, and Verzár International Laboratory for Experimental Gerontology., eds. Lipofuscin--1987: State of the art : proceedings of an international symposium held in Debrecen, Hungary, on 26-30 August, 1987. Amsterdam: Excerpta Medica, 1988.

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Amar, Agarwal, ed. Fundus fluorescein and indocyanine green angiography: A textbook and atlas. Thorofare, NJ: SLACK, 2008.

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Octavio, Paredes-Lopez, and Foodnetbase, eds. Natural colorants for food and nutraceutical uses. Boca Raton: CRC Press, 2003.

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Book chapters on the topic "Coloring Agents"

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Karmakar, Arnab, Abhishek Kumar Das, Sumit Ghosh, and Parames C. Sil. "Carotenoids as Coloring Agents." In Carotenoids: Structure and Function in the Human Body, 189–207. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-46459-2_6.

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Dua, Tarun Kumar, and Paramita Paul. "Naturally Occurring Coloring and Flavoring Agents." In Plant-derived Bioactives, 549–69. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1761-7_23.

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Aurand, Leonard W., A. Edwin Woods, and Marion R. Wells. "Coloring Agents and Color of Foods." In Food Composition and Analysis, 453–92. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-015-7398-6_10.

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Ediger, Patrick, and Rolf Hoffmann. "All-to-All Communication with CA Agents by Active Coloring and Acknowledging." In Lecture Notes in Computer Science, 24–34. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-15979-4_3.

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Indrianingsih, Anastasia Wheni, and Cici Darsih. "Natural Coloring Agents in Raising Awareness of Indonesian Textile Industry Sustainability and the Role of Corporate Social Responsibility: Health and Environmental Aspects." In Sustainable Textiles: Production, Processing, Manufacturing & Chemistry, 1–13. Cham: Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-61099-8_1.

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Titiloye, Olawale, and Alan Crispin. "Graph Coloring with a Distributed Hybrid Quantum Annealing Algorithm." In Agent and Multi-Agent Systems: Technologies and Applications, 553–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-22000-5_57.

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Kavitha, A., and S. Sandhya Snehasree. "Comparative Study of Artificial Emotional Intelligence Structuring Social Agent Behavior Based on Graph Coloring Problem." In Advances in Intelligent Systems and Computing, 253–63. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-35314-7_30.

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Lo, Betty. "Decorative Techniques in Oriental Swords: Savoir Faire in Craftsmanship and Artistry." In Martial Culture and Historical Martial Arts in Europe and Asia, 239–79. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2037-0_8.

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AbstractOne important aspect in the study and appreciation of arms is the techniques and methods for their decoration. The wide range of materials and techniques used in the creation of swords and daggers were intended to add to the aesthetic qualities of functional items, either for everyday or ceremonial use. Throughout the ages, beautiful swords and daggers were worn by the elite and were presented to warriors and courtiers as gifts to symbolize victory, honor, virility, and to reinforce the bond of loyalty. They were also worn by men as jewelry of prestige and status. Techniques used by artisans to embellish these swords and bladed weapons are the subject of this paper. Examples from museums and private collections are selected to demonstrate the exquisite craftsmanship of gilding and coloring, inlay and damascening, stone and gem-setting, embossing, chasing and engraving, enameling, 3D carving, wiring and filigree, etching and openwork. This chapter focuses on how these techniques were used to produce distinctive details of decorated antique swords and daggers of Eastern origins from the Ottoman empire, Persia, and India.
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Feisner, Edith, and Ronald Reed. "Coloring Agents." In Color Studies, 32–41. Bloomsbury Publishing Inc, 2014. http://dx.doi.org/10.5040/9781501303364.ch-004.

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Meena, Nirmal Kumar, Vijay Singh Meena, M. Verma, and Subhrajyoti Mishra. "Plant extracts as coloring agents." In Plant Extracts: Applications in the Food Industry, 187–207. Elsevier, 2022. http://dx.doi.org/10.1016/b978-0-12-822475-5.00012-0.

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Conference papers on the topic "Coloring Agents"

1

"Artificial Intelligence and Creativity - Two Requirements to Solve an Extremely Complex Coloring Problem." In International Conference on Agents and Artificial Intelligence. SciTePress - Science and and Technology Publications, 2013. http://dx.doi.org/10.5220/0004183004110418.

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Griyanitasari, Gresy, Emiliana Kasmudjiastuti, Ragil Yuliatmo, and Mohammad Zainal Abidin. "Evaluation of combination tanning and natural finishing on sheep leather with Uncaria Gambir Roxb extract." In The 8th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2020. http://dx.doi.org/10.24264/icams-2020.ii.11.

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The discovery of natural local resources for tanning and coloring agents are growing dramatically to sustain a cleaner leather manufacturing technology. Gambir (Uncaria gambir Roxb) has been found potential as tannin and dyestuffs for leather and textile industry. Therefore, to explore these issues, a combination tanning and finishing system were evaluated to observe the efficiency of this extract on leather processing. A combination tanning system based on chrome or glutaraldehyde – gambir and followed by gambir as coloring agent with different concentrations (100 - 200 parts/L) have been applied. In this FTIR (Fourier-transform infrared spectroscopy) analysis of gambir extract showed the presence of phenolic hydroxyl group. Our results revealed that chrome - gambir and glutaraldehyde - gambir finished leather product with 150 parts/L of gambir extract showed excellent rub fastness, color fastness to perspiration and washing. Most of the result values obtained were generally at satisfactory levels which were between 3/4 and 5 fastness values. Visual evaluation reported that chrome-gambir finished leather product with 150 parts/L of gambir extract exhibited better uniformity of colour fastness.
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Asano, Chie Muraki, Yuki Ohba, Yuika Ohyama, Takako Sasaki, and Akira Asano. "A Study on the Relationship between Children's Developmental Stages and Sense of Color." In 9th International Conference on Kansei Engineering and Emotion Research (KEER2022). Kansei Engineering and Emotion Research (KEER), 2022. http://dx.doi.org/10.5821/conference-9788419184849.03.

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It is well known that human sensitivity to color and expressive ability varies with age and gender. In addition, the perception, understanding, and comprehension of color vary according to developmental stage and color-related experiences. This study is one approach to research to clarify the relationship between such "sense of color" as above and the developmental stages of children. In this study, the coloring behavior of teenage subjects; elementary school, junior high school, and university students, to coloring book images were investigated using iPads. The characteristics of coloring and color schemes used in the coloring books were analyzed to explore the relationship with the developmental stages of the children. The coloring book images, mandala-like patterns, used in the investigation were designed originally based on some preliminary investigations. In addition, the original palette of colors systematically arranged in hues and tones was specified to quantitatively analyze the characteristics of the colors used in the coloring book. The results showed that the hues of colors used with high frequency in coloring books changed as the developmental stage progressed and that the range of tones by the combination of saturation and lightness widened. It was also found that the color schemes were simple and easy to understand at younger ages, while the complexity of the color schemes increased as the children grew older.
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Gemelli, Nathaniel, Jeffrey Hudack, and Jae C. Oh. "Virtual Structure Reduction on Distributed K-Coloring Problems." In 2013 IEEE/WIC/ACM International Joint Conferences on Web Intelligence (WI) and Intelligent Agent Technologies (IAT). IEEE, 2013. http://dx.doi.org/10.1109/wi-iat.2013.89.

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Bui, Thang N., and ThanhVu H. Nguyen. "An agent-based algorithm for generalized graph colorings." In the 8th annual conference. New York, New York, USA: ACM Press, 2006. http://dx.doi.org/10.1145/1143997.1144001.

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Bekmanova, Gulmira, Gaziza Yelibayeva, Banu Yergesh, Laura Orynbay, Ayaulym Sairanbekova, and Zulfiya Kaderkeyeva. "Emotional Coloring of Kazakh People’s Names in the Semantic Knowledge Database of "Fascinating Onomastics" Mobile Application." In 2022 IEEE/WIC/ACM International Joint Conference on Web Intelligence and Intelligent Agent Technology (WI-IAT). IEEE, 2022. http://dx.doi.org/10.1109/wi-iat55865.2022.00105.

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Anuradha, M. H. T. S., and K. Siriwardana. "Green Synthesis of Silver Nanoparticle Color Range as a Potential Colorant in Textile Materials." In SLIIT International Conference on Advancements in Sciences and Humanities 2023. Faculty of Humanities and Sciences, SLIIT, 2023. http://dx.doi.org/10.54389/tcjf6934.

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Coloration of textile materials is achieved using a wide variety of synthetic and natural dyes and pigments with desired fastness. However, colorfastness is adversely affected by several factors, including exposure to UV light, repeated washing, and surface abrasion from wearing. Hence, the overall quality of the fabrics and textiles will be affected. A novel approach in textile coloration can be achieved using silver nanoparticles (AgNPs), since AgNPs are stable upon UV exposure. AgNPs of different sizes and shapes exhibit different colors due to the surface plasmon resonance effect. Herein, we describe a simple, rapid, and green method to synthesize AgNPs with range of colors using the same precursors. AgNPs were synthesized by using fresh-squeezed lime juice in the presence of solar irradiation. Lime juice acts as both a reducing and stabilizing agent. Different colored AgNPs were formed by changing the concentrations or volume ratios of Ag+ ions, lime juice, and pH values. AgNP formation was confirmed by characteristic UVVis spectra. A color range of yellow, brown, gray, maroon, and malachite green was synthesized, and poplin yarn was colored. Instead of chemical binders, the possibility of using vinegar and lime was studied. The washability and UV stability of the colored yarns were studied. The color did not fade even after 10 washing cycles. In the absence of any binder or stabilizer on the fabric surface, initial color did not fade during the washing with deionized water. However, a different color was observed after exposing to sunlight for three weeks. A dark color was observed for vinegar-treated fabric. The method reported herein provides a simple, rapid, and eco-friendly approach to obtain a range of colors using the same precursors which can be used in the coloration of textile materials with a suitable binding agent.
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