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Journal articles on the topic 'Fluorescenza'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 March 2023

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1

Galizzi, R., L. Fulvi, E. Polizzi, and A. Calderini. "La fluorescenza dentaria nella diagnosi di carie." Dental Cadmos 79, no. 5 (2011): 272–88. http://dx.doi.org/10.1016/j.cadmos.2010.12.012.

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2

Lombardi, D., and A. Sabatini. "Microscopia Confocale a Fluorescenza nella localizzazione di Progenitori Staminali Renali." Giornale di Clinica Nefrologica e Dialisi 22, no. 3 (2018): 26–29. http://dx.doi.org/10.33393/gcnd.2010.1226.

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Lombardi, D., and A. Sabatini. "Microscopia Confocale a Fluorescenza nella localizzazione di Progenitori Staminali Renali." Giornale di Tecniche Nefrologiche e Dialitiche 22, no. 3 (2010): 26–29. http://dx.doi.org/10.1177/039493621002200308.

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4

MORO, A., C. DE WAURE, F. DI NARDO, et al. "Il dispositivo medico GOCCLES® è in grado di individuare displasie e cancro orale se impiegato nel setting odontoiatrico. Risultati da uno studio multicentrico." Acta Otorhinolaryngologica Italica 35, no. 6 (2015): 449–54. http://dx.doi.org/10.14639/0392-100x-922.

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Scopo di questo studio è dimostrare che il dispositivo medico GOCCLES® permette di condurre l’esame dell’autofluorescenza del cavo orale nel setting odontoiatrico. Si tratta di uno studio multicentrico non randomizzato su pazienti consecutivi a rischio di cancro orale. I pazienti sono stati sottoposti ad ispezione del cavo orale ad occhio nudo seguita dall’esame dell’autofluorescenza condotto indossando gli occhiali GOCCLES® mentre una lampada fotopolimerizzante illuminava la mucosa orale. Le lesioni sono state definite come qualunque lesione precancerosa del cavo orale visibile ad occhio nudo

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5

MATSUMOTO, TAKURO, ATSUSHI SUETSUGU, KOSUKE HASEGAWA, et al. "A Mouse Model of Fluorescent Protein-expressing Disseminated Peritoneal Lymphoma for Fluorescence-guided Surgery." Anticancer Research 36, no. 9 (2016): 4483–88. http://dx.doi.org/10.21873/anticanres.10993.

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6

Sedlionoka, Elīna, and Jeļena Kirilova. "AMINOACIDS LIKE FLUORESCENT MARKERS FOR BIOMATERIALS." HUMAN. ENVIRONMENT. TECHNOLOGIES. Proceedings of the Students International Scientific and Practical Conference, no. 24 (April 22, 2020): 168–71. http://dx.doi.org/10.17770/het2020.24.6770.

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Mūsdienās fluorescentas metodes ir plaši izmantotas vairākās zinātnes un medicīnas nozarēs: luminiscējošie materiāli ir nozīmīgi imunoķīmijā, in situ hibridizācijas fluorescencē, šūnu pētījumos, citoķīmijā, medicīniskos izmeklējumos un citur. Fluorescentā iekrāsošana ir process, kura gaitā notiek fluorofora kovalentā pievienošana pētāmai molekulai. Tagad ir izpētītas vairākās luminiscentas iezīmes olbaltumvielu, lipīdu un nukleīnskābju vizualizēšanai. Proteīnu vizualizācijai bioķīmiķi un biologi plaši izmanto luminiscentu iezīmi FITC, kura līdzīgi projektā pielietotam marķierim satur izotiocia

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Sukprasong, Saksit, Yongyut Manjit, Apichart Limpichaipanit, and Athipong Ngamjarurojana. "Inner Filter Effect on Fluorescence Dyes Spectra in Methanol Solution." Key Engineering Materials 675-676 (January 2016): 704–7. http://dx.doi.org/10.4028/www.scientific.net/kem.675-676.704.

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This research was conducted to study the inner filter effect on the fluorescence spectra of fluorescence dyes. The concentration effect on all of fluorescent dye solutions showed the same trend in terms of changes in fluorescence intensity spectra. At low concentrations, the fluorescence intensity increased when the concentration of fluorescent dye solution increased. However, at high concentrations, the fluorescence intensity decreased when the concentration of fluorescent dye solution increased. Interestingly, the result of fluorescence spectra in dye solutions showed that the fluorescence i

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Nakata, Eiji, Khongorzul Gerelbaatar, Futa Komatsubara, and Takashi Morii. "Stimuli-Responsible SNARF Derivatives as a Latent Ratiometric Fluorescent Probe." Molecules 27, no. 21 (2022): 7181. http://dx.doi.org/10.3390/molecules27217181.

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Fluorescence imaging is a powerful technique for continuous observation of dynamic intracellular processes of living cells. Fluorescent probes bearing a fluorescence switching property associated with a specific recognition or reaction of target biomolecule, that is, stimuli-responsibility, are important for fluorescence imaging. Thus, fluorescent probes continue to be developed to support approaches with different design strategies. When compared with simple intensity-changing fluorescent probes, ratiometric fluorescent probes typically offer the advantage of less sensitivity to errors associ

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9

Jansen, Sanne, Daniel De Bruin, Simon Strackee, et al. "PS01.186: QUANTITATIVE PERFUSION EVALUATION AFTER GASTRIC TUBE RECONSTRUCTION USING FLUORESCENCE IMAGING." Diseases of the Esophagus 31, Supplement_1 (2018): 102–3. http://dx.doi.org/10.1093/dote/doy089.ps01.186.

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Abstract Background Poor fundus perfusion is seen as the major factor for the development of anastomotic necrosis, leakage and strictures. Quantitative imaging of tissue perfusion during reconstructive surgery, therefore, may reduce the incidence of complications. Imaging the fluorescense of intravenously administered fluorophores is an optical, non-contact method to image blood flow in real-time. However, quantitative parameters for perfusion evaluation are stil lacking. The objective of this study is to test fluorescence imaging derived quantitative parameters for perfusion evaluation of the

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10

Kim, In Jung, Yongbin Xu, and Ki Hyun Nam. "Spectroscopic and Structural Analysis of Cu2+-Induced Fluorescence Quenching of ZsYellow." Biosensors 10, no. 3 (2020): 29. http://dx.doi.org/10.3390/bios10030029.

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Fluorescent proteins exhibit fluorescence quenching by specific transition metals, suggesting their potential as fluorescent protein-based metal biosensors. Each fluorescent protein exhibits unique spectroscopic properties and mechanisms for fluorescence quenching by metals. Therefore, the metal-induced fluorescence quenching analysis of various new fluorescent proteins would be important step towards the development of such fluorescent protein-based metal biosensors. Here, we first report the spectroscopic and structural analysis of the yellow fluorescent protein ZsYellow, following its metal

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11

Zhou, Dan, Lei Zhou, Xiaoyan Hu, Yan Hu, and Ping Hu. "Detection and Imaging Application of miRNA in Cells and Living Organisms with Nano-Fluorescent Probes Made by Novel Synthesis Materials." Science of Advanced Materials 11, no. 12 (2019): 1806–15. http://dx.doi.org/10.1166/sam.2019.3724.

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As a kind of rare earth fluorescent material, the rare earth upconversion nanomaterial can be applied in various fields such as biological detection and imaging, solar cells, and safe positioning, which has attracted wide concerns. In this study, the novel material is applied to the preparation of biological nano-fluorescent probes. Due to its broad UV absorption spectrum, cobalt oxyhydroxide is selected and used as a quencher for upconversion nanomaterials. Once the cobalt oxyhydroxide is placed on upconversion nanomaterials, the surface reaction can effectively remove the fluorescence reacti

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12

Gijzen, Mark, Ralph Chapman, Loretta M. Ross, and Alvin N. Starratt. "Root fluorescent compounds from soybean controlled by the Fr loci." Canadian Journal of Plant Science 88, no. 1 (2008): 147–50. http://dx.doi.org/10.4141/cjps07073.

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Soybean root fluorescence in ultraviolet light is controlled by the Fr loci. Extracts from fluorescent roots of soybean contain three closely related fluorescent compounds that are greatly reduced in extracts from non-fluorescent roots. Root fluorescence is due to their presence, regardless of the Frlocus that conditions this trait. Key words: Coumarin, genetic locus, glycoside, fluorescence, roots, soybean

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13

Hughes, Bryan, Jeff Bowman, Naomi L. Stock, and Gary Burness. "Using mass spectrometry to investigate fluorescent compounds in squirrel fur." PLOS ONE 17, no. 2 (2022): e0257156. http://dx.doi.org/10.1371/journal.pone.0257156.

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While an array of taxa are capable of producing fluorescent pigments, fluorescence in mammals is a novel and poorly understood phenomenon. A first step towards understanding the potential adaptive functions of fluorescence in mammals is to develop an understanding of fluorescent compounds, or fluorophores, that are present in fluorescent tissue. Here we use Fourier transform-ion cyclotron resonance mass spectrometry (FT-ICR MS) of flying squirrel fur known to fluoresce under ultraviolet (UV) light to identify potentially fluorescent compounds in squirrel fur. All of the potentially fluorescent

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14

Skold, CM, A. Eklund, J. Hed, and R. Hernbrand. "Endocytosis of cigarette-smoke condensate by rabbit alveolar macrophages in vitro measured as fluorescence intensity." European Respiratory Journal 5, no. 1 (1992): 53–58. http://dx.doi.org/10.1183/09031936.93.05010053.

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It has previously been shown that alveolar macrophages (AMs) from smokers have increased fluorescence compared to AMs from nonsmokers. In the present investigation, AMs lavaged from rabbits were exposed to a cigarette-smoke condensate (CSC) in order to study its influence on the fluorescence of AMs. Flow cytofluorometry was used. Alveolar cells exposed to 0.01% of CSC showed a fluorescence which increased with higher concentrations of the CSC. Incubation with CSC for 5 min was enough to give a significant rise (p less than 0.001) in cell fluorescence compared to controls. After incubating fluo

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15

Chia, Y. Y., and M. G. Tay. "An insight into fluorescent transition metal complexes." Dalton Trans. 43, no. 35 (2014): 13159–68. http://dx.doi.org/10.1039/c4dt01098a.

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Three types of fluorescent emissions were found in the transition metal complexes namely pure fluorescence, thermal activated delayed fluorescence and fluorescence-phosphorescence dual emissions. The characteristics of these fluorescent emissions are reviewed in this perspective.

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16

Wannas, Fatimah A., Rajaa Abd Alameer Gafel, and Noor Dia Jaffer. "A Literature Review on The Fluorescence and phosphorescent." American International Journal of Sciences and Engineering Research 2, no. 1 (2019): 47–55. http://dx.doi.org/10.46545/aijser.v2i1.53.

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The present literature explains Fluorescence and phosphorescent in chemical compounds , fluorescence has types practical uses and applications, containing mineralogy, medicine, chemical sensors (fluorescence technique), fluorescent labeling , dyes compounds , medical detectors and most commonly, fluorescent lamps.

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17

Kwon, Sunkuk, and Eva M. Sevick-Muraca. "Effects of Depilation-Induced Skin Pigmentation and Diet-Induced Fluorescence on In Vivo Fluorescence Imaging." Contrast Media & Molecular Imaging 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/7659242.

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Near-infrared fluorescence imaging (NIRFI) and far-red fluorescence imaging (FRFI) were used to investigate effects of depilation-induced skin pigmentation and diet-induced background fluorescence on fluorescent signal amplitude and lymphatic contraction frequency in C57BL6 mice. Far-red fluorescent signal amplitude, but not frequency, was affected by diet-induced fluorescence, which was removed by feeding the mice an alfalfa-free diet, and skin pigmentation further impacted the amplitude measurement. NIRFI showed minimal background fluorescence; however, skin pigmentation reduced the amplitud

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18

Meng, Jie, Cheng Sun, and Jian Qing Wang. "Study on Europium Polymeric Fluorescent Material and Paper-Based Screen Printing Fluorescent Security Ink." Applied Mechanics and Materials 469 (November 2013): 7–12. http://dx.doi.org/10.4028/www.scientific.net/amm.469.7.

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Screen printing fluorescent security inks can be widely applied in the field of anti-counterfeiting packaging and printing special. Paper-based screen printing fluorescence security ink was prepared by europium polymer fluorescent material as fluorescent agent, alkyd resin etc as links, meanwhile various additives were added. The performance of europium polymer was studied by IR, UV spectra, fluorescence spectra, and fluorescent security performance of ink were studied by fluorescence spectrophotometer, the results showed that the fluorescence emission spectrum was narrow, and had a main peak

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19

Staffolani, R., G. Biagini, A. Pugnaloni, E. Salvolini, N. Cester, and C. Romanini. "Studio delle Modificazioni Morfo-Funzionali delle Cellule Endoteliali in Gravidanze Gemellari." Acta geneticae medicae et gemellologiae: twin research 43, no. 1-2 (1994): 116. http://dx.doi.org/10.1017/s0001566000003068.

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AbstractLe gravidanze gemellari sono caratterizzate da riduzioni delle dimensioni del feto accompagnati dai corrispondenti riduzioni placentari, come precedentemente riportato. Anche modificazioni sono state evidenziate a carico degli altri annessi embrionali, mentre varie sono le problematiche non risolte. Pertanto noi abbiamo voluto valutare le caratteristiche morfofunzionali delle vene ombelcali cordonali di gemelli dicoriali confrontandoli con quelle di gravidanze normali a termine. Sono stati analizzati i cordoni ombelicali di gravidanze a termine e da una gravidanza gemellare dicoriale r

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20

Wang, Yifan, Liang Yang, Bianhua Liu, Shaoming Yu, and Changlong Jiang. "A colorimetric paper sensor for visual detection of mercury ions constructed with dual-emission carbon dots." New Journal of Chemistry 42, no. 19 (2018): 15671–77. http://dx.doi.org/10.1039/c8nj03683g.

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A ratiometric fluorescence nanosensor has been developed by mixing blue fluorescent carbon dots and red fluorescent carbon dots, where the blue fluorescence can be selectively quenched by Hg<sup>2+</sup>, while the red fluorescence is an internal reference.

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21

Gabey, A. M., W. R. Stanley, M. W. Gallagher та P. H. Kaye. "The fluorescence properties of aerosol larger than 0.8 μm in an urban and a PBA-dominated location". Atmospheric Chemistry and Physics Discussions 11, № 1 (2011): 531–66. http://dx.doi.org/10.5194/acpd-11-531-2011.

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Abstract. Dual-wavelength Ultraviolet light-induced fluorescence (UV-LIF) measurements were performed on ambient environmental aerosol in Manchester, UK (urban city centre, winter) and Borneo, Malaysia (remote, tropical), which are taken to represent environments with negligible and significant primary biological aerosol (PBA) influences, respectively. Single-particle fluorescence intensity and optical equivalent diameter were measured with a Wide Issue Bioaerosol Sensor, version 3 (WIBS3) in the diameter range 0.8 μm≤DP≤20 μm for 2–3 weeks and filters were analysed using energy dispersive X-r

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22

Xu, Hongbo, Lingxiao Liu, Fei Teng, and Nan Lu. "Emission Enhancement of Fluorescent Molecules by Antireflective Arrays." Research 2019 (November 27, 2019): 1–8. http://dx.doi.org/10.34133/2019/3495841.

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Traditional fluorescence enhancement based on a match of the maximum excitation or emission of fluorescence molecule with the spectra of the nanostructure can hardly enhance blue and red fluorescent molecules. Here, an enhanced method which is a new strategy based on the antireflective array has been developed to enhance the emission of blue and red fluorescent molecules. The fluorescence emission is enhanced by increasing the absorption at excitation wavelengths of the fluorescent molecules and reducing the fluorescent energy dissipation with an antireflective array. By introducing the antire

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23

Noda, N., Y. Ebie, M. Matsumura, S. Tsuneda, A. Hirata, and Y. Inamori. "Comparison of detection specificity of nitrifying bacteria in biofilm using fluorescence in situ hybridization and in situ fluorescent antibody methods." Water Science and Technology 47, no. 5 (2003): 129–32. http://dx.doi.org/10.2166/wst.2003.0299.

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The in situ fluorescent antibody and fluorescence in situ hybridization (FISH) methods are very useful in the in situ detection of specific bacteria like nitrifiers in a biofilm. In this study, simultaneous staining using the FISH and in situ fluorescent antibody methods was examined. As a result, no specific fluorescence was observed with either method when FISH was performed followed by the in situ fluorescent antibody method; however, when the in situ fluorescent antibody method was performed first followed by FISH, specific fluorescence was observed in both cases. Moreover, it was suggeste

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24

Liu, Jing. "A Study of the Optical Properties of Triazene-Cinnamic Acid Polymeric Fluorescent Brighteners." Applied Mechanics and Materials 184-185 (June 2012): 868–71. http://dx.doi.org/10.4028/www.scientific.net/amm.184-185.868.

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Series of the triazene-cinnamic acid polymeric fluorescent brighteners were synthesized through three-step condensation reactions and polymerization reaction with styrene under replacing one of amino compounds of traditional fluorescent brighteners by cinnamic acid. The optical properties in aqueous solutions and N,N’- dimethyl formamide as well as paper coating application test were evaluated. The results showed that the light stability and fluorescence quantum yield of polymeric fluorescent brighteners was improved obviously and photoinduced isomerization was lower. Meanwhile the optical pro

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25

Xu, Qinhai, Kang Li, and Peng Wang. "pH-Sensitive Silver-Containing Carbon Dots Based on Folic Acid." Materials 15, no. 5 (2022): 1880. http://dx.doi.org/10.3390/ma15051880.

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Herein, Ag-containing carbon dots (Ag-CDs) was synthesized based on folic acid. In a neutral solution, its fluorescence emission owns a structure fixing fluorescent species with the emission maximum at 400 nm and an excitation-wavelength dependent fluorescent species, respectively. By comparing fluorescent emission and excitation spectra, the electronic absorption origins of these fluorescent species were assigned. With the assistance of UV–Vis absorption and XPS, the pH-regulating fluorescence mechanism of Ag-CDs was studied and proposed. A particularly strong fluorescence emitter was observe

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Stiner, Lawrence, and Larry J. Halverson. "Development and Characterization of a Green Fluorescent Protein-Based Bacterial Biosensor for Bioavailable Toluene and Related Compounds." Applied and Environmental Microbiology 68, no. 4 (2002): 1962–71. http://dx.doi.org/10.1128/aem.68.4.1962-1971.2002.

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ABSTRACT A green fluorescent protein-based Pseudomonas fluorescens strain A506 biosensor was constructed and characterized for its potential to measure benzene, toluene, ethylbenzene, and related compounds in aqueous solutions. The biosensor is based on a plasmid carrying the toluene-benzene utilization (tbu) pathway transcriptional activator TbuT from Ralstonia pickettii PKO1 and a transcriptional fusion of its promoter PtbuA1 with a promoterless gfp gene on a broad-host-range promoter probe vector. TbuT was not limiting, since it was constitutively expressed by being fused to the neomycin ph

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27

DACOSTA, RALPH S., YING TANG, TUULA KALLIOMAKI, et al. "IN VIVO NEAR-INFRARED FLUORESCENCE IMAGING OF HUMAN COLON ADENOCARCINOMA BY SPECIFIC IMMUNOTARGETING OF A TUMOR-ASSOCIATED MUCIN." Journal of Innovative Optical Health Sciences 02, no. 04 (2009): 407–22. http://dx.doi.org/10.1142/s1793545809000759.

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Background and Aims: Accurate endoscopic detection of premalignant lesions and early cancers in the colon is essential for cure, since prognosis is closely related to lesion size and stage. Although it has great clinical potential, autofluorescence endoscopy has limited tumor-to-normal tissue image contrast for detecting small preneoplastic lesions. We have developed a molecularly specific, near-infrared fluorescent monoclonal antibody (CC49) bioconjugate which targets tumor-associated glycoprotein 72 (TAG72), as a contrast agent to improve fluorescence-based endoscopy of colon cancer. Methods

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Sun, Yulong, and Avi Chakrabartty. "Cost-effective elimination of lipofuscin fluorescence from formalin-fixed brain tissue by white phosphor light emitting diode array." Biochemistry and Cell Biology 94, no. 6 (2016): 545–50. http://dx.doi.org/10.1139/bcb-2016-0125.

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Autofluorescence of aldehyde-fixed tissues greatly hinders fluorescence microscopy. In particular, lipofuscin, an autofluorescent component of aged brain tissue, complicates fluorescence imaging of tissue in neurodegenerative diseases. Background and lipofuscin fluorescence can be reduced by greater than 90% through photobleaching using white phosphor light emitting diode arrays prior to treatment with fluorescent probes. We compared the effect of photobleaching versus established chemical quenchers on the quality of fluorescent staining in formalin-fixed brain tissue of frontotemporal dementi

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ZHU, MING-QIANG, GUO-FENG ZHANG, CHONG LI, YA-JING LI, MATTHEW P. ALDRED, and ALEXANDER D. Q. LI. "PHOTOSWITCHABLE NANOFLUOROPHORES FOR INNOVATIVE BIOIMAGING." Journal of Innovative Optical Health Sciences 04, no. 04 (2011): 395–408. http://dx.doi.org/10.1142/s1793545811001423.

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Photosensitive fluorescent probes have become powerful tools in chemical biology and molecular biophysics, which are used to investigate cellular processes with high temporal and spatial resolution. Accordingly, photosensitive fluorescent probes, including photoactivatable, photoconvertible, and photoswitchable fluorophores, have been extensively developed during the past decade. The photoswitchable fluorophores have received much attention because they highlight cellular events clearly. This minireview summarizes recent advances of using reversibly photoswitchable fluorophores and their appli

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Wu, Jian, Yongjun Du, Chunyan Wang, and Tao Chen. "The Detection of a Fluorescent Dye by Surface-Enhanced Fluorescence with the Addition of Silver Nanoparticles and Its Application for the Space Station." Journal of Nanoscience and Nanotechnology 20, no. 5 (2020): 3195–200. http://dx.doi.org/10.1166/jnn.2020.17383.

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Surface-enhanced fluorescence detection has large potential for detecting many chemical and biological trace analytes. This paper presents a novel method for preparing silver nanomaterials in microfluidic chip channels for the surface-enhanced fluorescence detection of fluorescent dye (SYBR Green I) molecules. Microfluidic chip channels were fabricated by a 248-nm excimer laser. Silver nanoparticles (Ag-NPs) were prepared inside the microfluidic chip channels by directly heating the silver precursor solution. The influence of different temperatures on the sizes of the silver nanoparticles was

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Gao, Shao Hong, Xian Fu Wei, and Bei Qing Huang. "Effect of Resin on the Property of the Fluorescent Inkjet Ink." Advanced Materials Research 287-290 (July 2011): 49–53. http://dx.doi.org/10.4028/www.scientific.net/amr.287-290.49.

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Digital printing ink imaging is one of main technical fields in digital printing technology development, fluorescence inkjet digital printing is provided with favorable anti-falsification, which is used widely in Securities anti-counterfeiting and labels anti-counterfeiting etc[1]. Printings coated with fluorescence inkjet ink that emits fluorescence under using short-wave ultraviolet light excitation get more favorable anti-falsification. Green fluorescent inkjet ink is composed of phosphor, resin, solvent, assistant agent etc, resin is main one of green fluorescent inkjet ink, which has a si

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Sukprasong, Saksit, Apichart Limpichaipanit, and Athipong Ngamjarurojana. "Investigation of Optical Spectroscopic Properties on Fluorescent Creams." Applied Mechanics and Materials 848 (July 2016): 72–75. http://dx.doi.org/10.4028/www.scientific.net/amm.848.72.

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The optical spectroscopic properties of fluorescent materials were investigated using laser induced fluorescence technique. The fluorescent creams were used in this research. The sample materials were illuminated by UV laser excitation source. Then, the fluorescence spectra were recorded and analyzed by fiber optics spectrometer complied with the CIE 1931 XYZ color space which is essential for color management. The result showed that the characteristics of fluorescence spectra such as intensity, wavelength position and bandwidth in each fluorescent creams exhibited distinct characteristics in

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Qiao, Rui, Wen-Zhang Xiong, Cui-Bing Bai, et al. "A Highly Selective Fluorescent Probe for Zn2+ Based on a Rhodamine-6G dye Derivative Modified by a Furan Unit." Journal of Chemical Research 42, no. 4 (2018): 194–97. http://dx.doi.org/10.3184/174751918x15232837452384.

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A fluorescent probe for Zn2+ based on rhodamine-6G has been synthesised. It showed excellent fluorescent specific selectivity and high sensitivity for Zn2+ compared with other metal ions, such as Fe3+, Cr3+, Hg2+, Ag+, Ca2+, Cu2+, Pb2+, Cd2+, Ni2+, Co2+ and Mg2+, in CH3CN–phosphate buffer saline solution. The distinct colour change and the rapid emergence of fluorescence emission provided ‘naked-eye’ detection of Zn2+. The detection limit of the fluorescent probe towards Zn2+ was 1.78 μM. In addition, the fluorescence lifetime and fluorescence quantum yield were measured.

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Qin, Qiu Yan, Yi Ping Qian, Zi Yu Wang, and Xiao Lin Fan. "Design and Synthesis of Fluorescent Betahistine Conjugates with Unique Imaging Property." Advanced Materials Research 557-559 (July 2012): 712–15. http://dx.doi.org/10.4028/www.scientific.net/amr.557-559.712.

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Labeling cardiovascular drugs probes with a fluorescent tag is an alternative method of measuring drugs activities and distributions in vivo, and further using of advanced tools to diagnose or detect cardiovascular diseases. Using this approach, a fluorescent probe (betahistine-Flu, 1) of Betahistine-based was synthesized and characterized by 1H NMR, 13C NMR and LC-MS, and its UV-Vis absorption spectral and fluorescence spectral, and fluorescence imaging in cell model were investigated. It was found that the fluorescent probe display strong green fluorescence, and have good optical effect in c

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Liu, Mingxian, Fenglin Tang, Zhengli Yang, Jing Xu, and Xiupei Yang. "Recent Progress on Gold-Nanocluster-Based Fluorescent Probe for Environmental Analysis and Biological Sensing." Journal of Analytical Methods in Chemistry 2019 (January 2, 2019): 1–10. http://dx.doi.org/10.1155/2019/1095148.

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Gold nanoclusters (AuNCs) are one of metal nanoclusters, which play a pivotal role in the recent advances in the research of fluorescent probes for their fluorescence effect. They are favored by most researchers due to their strong stability in fluorescence and adjustability in fluorescence wavelength when compared to traditional organic fluorescent dyes. In this review, we introduce various synthesis strategies of gold-nanocluster-based fluorescent probes and summarize their application for environmental analysis and biological sensing. The use of gold-nanocluster-based fluorescent probes for

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Könemann, Tobias, Nicole J. Savage, J. Alex Huffman, and Christopher Pöhlker. "Characterization of steady-state fluorescence properties of polystyrene latex spheres using off- and online spectroscopic methods." Atmospheric Measurement Techniques 11, no. 7 (2018): 3987–4003. http://dx.doi.org/10.5194/amt-11-3987-2018.

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Abstract. Fluorescent dyed polystyrene latex spheres (PSLs) are commonly used for characterization and calibration of instruments detecting fluorescence signals from particles suspended in the air and other fluids. Instruments like the Ultraviolet Aerodynamic Particle Sizer (UV-APS) and the Waveband Integrated Bioaerosol Sensor (WIBS) are widely used for bioaerosol research, but these instruments present significant technical and physical challenges requiring careful characterization with standard particles. Many other research communities use flow cytometry and other instruments that interrog

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Mao, Tan, Xiaoting Shi, Liyuan Lin, Youliang Cheng, Xueke Luo, and Changqing Fang. "Research Progress on Up-Conversion Fluorescence Probe for Detection of Perfluorooctanoic Acid in Water Treatment." Polymers 15, no. 3 (2023): 605. http://dx.doi.org/10.3390/polym15030605.

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Perfluorooctanoic acid (PFOA) is a new type of organic pollutant in wastewater that is persistent, toxic, and accumulates in living organisms. The development of rapid and sensitive analytical methods to detect PFOA in environmental media is of great importance. Fluorescence detection has the advantages of high efficiency and low cost, in which fluorescent probes have excellent fluorescence properties, excellent bio-solubility, and remarkable photostability. It is necessary to review the fluorescence detection routes for PFOA. In addition, the up-conversion of fluorescent materials (UCNPs), as

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Cheng, P. C., B. L. Lin, F. J. Kao, C. K. Sun, and I. Johnson. "Multi-Photon Fluorescence Spectroum of Common Nucleic Acid Probes." Microscopy and Microanalysis 6, S2 (2000): 820–21. http://dx.doi.org/10.1017/s143192760003659x.

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Fluorescent probes are commonly used in biological fluorescence microscopy for tracking specific structures and sub-cellular compartments, and for indicating cellular ionic conditions. Recent development in multi-photon fluorescence microscopy has greatly expanded the usage of fluorescent probes in biomedical research. Considering its non-linear nature, two-photon excitation may generate very different fluorescence spectral response in the sample when compared with single photon excitation. It is thus necessary to measure the two-photon spectra of various fluorescent probes, so that two-photon

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Conhaim, R. L. "Airway level at which edema liquid enters the air space of isolated dog lungs." Journal of Applied Physiology 67, no. 6 (1989): 2234–42. http://dx.doi.org/10.1152/jappl.1989.67.6.2234.

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To identify lung units associated with liquid leakage into the air space in high-pressure pulmonary edema, we perfused air-inflated dog lung lobes with albumin solution to fill the loose peribronchovascular interstitium. Next, we perfused the lobes for 90 s with fluorescent albumin solution then froze the lobes in liquid nitrogen. This procedure confined the fluorescent perfusate to the liquid flux pathway between the circulation and the air space and eliminated the previously filled peribronchovascular cuffs as a source of the fluorescence that entered the air space. We divided each frozen lo

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Belov, M. L., Yu V. Fedotov, D. A. Kravtsov, and V. A. Gorodnichev. "Eye-Safe Wavelength Laser Fluorimeter for Noncontact Monitoring the Ecological Condition of Objects in Natural Environment." Mechanical Engineering and Computer Science, no. 5 (June 21, 2018): 30–42. http://dx.doi.org/10.24108/0518.0001398.

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Presently, a problem of ecological monitoring of natural environment is critical.Laser methods are the most powerful to provide noncontact and remote ecological monitoring of natural environment. Among laser monitoring methods, laser fluorescent ones are of strong interest.Today, there are laser fluorescent devices designed to monitor ecological condition of various objects in natural environment. To produce laser-induced fluorescence excitation, laser fluorescent devices use a variety of radiation sources in the spectral band from 226 to 635 nm.However, to have an advanced laser fluorescent d

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Hashim, Hairulazwan, Hisataka Maruyama, Yusuke Akita, and Fumihito Arai. "Hydrogel Fluorescence Microsensor with Fluorescence Recovery for Prolonged Stable Temperature Measurements." Sensors 19, no. 23 (2019): 5247. http://dx.doi.org/10.3390/s19235247.

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This work describes a hydrogel fluorescence microsensor for prolonged stable temperature measurements. Temperature measurement using microsensors has the potential to provide information about cells, tissues, and the culture environment, with optical measurement using a fluorescent dye being a promising microsensing approach. However, it is challenging to achieve stable measurements over prolonged periods with conventional measurement methods based on the fluorescence intensity of fluorescent dye because the excited fluorescent dye molecules are bleached by the exposure to light. The decrease

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Zuo, Jun, Tao Jiang, Xiaojing Zhao, Xiaohong Xiong, Saijin Xiao, and Zhiqiang Zhu. "Preparation and Application of Fluorescent Carbon Dots." Journal of Nanomaterials 2015 (2015): 1–13. http://dx.doi.org/10.1155/2015/787862.

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Fluorescent carbon dots (CDs) are a novel type of fluorescent nanomaterials, which not only possess the specific quantum confinement effects of nanomaterials due to the small size of nanomaterials, but also have good biocompatibility and high fluorescence. Meanwhile, fluorescence CDs overcome the shortcomings of high toxicity of traditional nanomaterials. Moreover, the preparation procedure of fluorescent CDs is simple and easy. Therefore, fluorescent CDs have great potential applied in photocatalysis, biochemical sensing, bioimaging, drug delivery, and other related areas. In this paper, rece

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Waters, Jennifer C. "Accuracy and precision in quantitative fluorescence microscopy." Journal of Cell Biology 185, no. 7 (2009): 1135–48. http://dx.doi.org/10.1083/jcb.200903097.

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The light microscope has long been used to document the localization of fluorescent molecules in cell biology research. With advances in digital cameras and the discovery and development of genetically encoded fluorophores, there has been a huge increase in the use of fluorescence microscopy to quantify spatial and temporal measurements of fluorescent molecules in biological specimens. Whether simply comparing the relative intensities of two fluorescent specimens, or using advanced techniques like Förster resonance energy transfer (FRET) or fluorescence recovery after photobleaching (FRAP), qu

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Watanabe, Takeshi, Yoshinori Iketaki, Takashige Omatsu, Kimihisa Yamamoto, and Masaaki Fujii. "Two-Point Separation in Far-Field Super-Resolution Fluorescence Microscopy Based on Two-Color Fluorescence Dip Spectroscopy, Part I: Experimental Evaluation." Applied Spectroscopy 59, no. 7 (2005): 868–72. http://dx.doi.org/10.1366/0003702054411562.

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The two-point resolution of a novel two-color far-field super-resolution fluorescence microscopy was evaluated by measuring fluorescent beads 100 nm in diameter. This microscopy is based on a combination of two-color fluorescence dip spectroscopy and a phase-modulation technique for a laser beam. By simply introducing two-color laser light, the size of the fluorescent image of a bead was shrunk down to a diameter of 250 nm from the diffraction-limited image with a diameter of 360 nm. For two closely adjacent fluorescent beads with a separation distance of 350 nm, the two-color microscope clear

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Mei, Qunbo, Ruqiang Tian, Yujie Shi, Qingfang Hua, Chen Chen, and Bihai Tong. "A series of selective and sensitive fluorescent sensors based on a thiophen-2-yl-benzothiazole unit for Hg2+." New Journal of Chemistry 40, no. 3 (2016): 2333–42. http://dx.doi.org/10.1039/c5nj02259b.

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Different types of fluorescent probes for Hg<sup>2+</sup> based on the 5-thiophen-2-yl-benzothiazole derivatives (TBT, CTBT, DTBT and NTBT) were realized by changing the subsituents, including the fluorescence quenching probe, the fluorescence enhancement probe and the ratiometric fluorescent probe.

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Brama, Elisabeth, Christopher J. Peddie, Gary Wilkes, Yan Gu, Lucy M. Collinson, and Martin L. Jones. "ultraLM and miniLM: Locator tools for smart tracking of fluorescent cells in correlative light and electron microscopy." Wellcome Open Research 1 (December 13, 2016): 26. http://dx.doi.org/10.12688/wellcomeopenres.10299.1.

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In-resin fluorescence (IRF) protocols preserve fluorescent proteins in resin-embedded cells and tissues for correlative light and electron microscopy, aiding interpretation of macromolecular function within the complex cellular landscape. Dual-contrast IRF samples can be imaged in separate fluorescence and electron microscopes, or in dual-modality integrated microscopes for high resolution correlation of fluorophore to organelle. IRF samples also offer a unique opportunity to automate correlative imaging workflows. Here we present two new locator tools for finding and following fluorescent cel

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Montali, Chiara, Stefania Abbruzzetti, Arne Franzen, et al. "Nitric Oxide Sensing by a Blue Fluorescent Protein." Antioxidants 11, no. 11 (2022): 2229. http://dx.doi.org/10.3390/antiox11112229.

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S-Nitrosylation of cysteine residues is an important molecular mechanism for dynamic, post-translational regulation of several proteins, providing a ubiquitous redox regulation. Cys residues are present in several fluorescent proteins (FP), including members of the family of Aequorea victoria Green Fluorescent Protein (GFP)-derived FPs, where two highly conserved cysteine residues contribute to a favorable environment for the autocatalytic chromophore formation reaction. The effect of nitric oxide on the fluorescence properties of FPs has not been investigated thus far, despite the tremendous

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Turek-Etienne, Tammy C., Eliza C. Small, Sharon C. Soh, et al. "Evaluation of Fluorescent Compound Interference in 4 Fluorescence Polarization Assays: 2 Kinases, 1 Protease, and 1 Phosphatase." Journal of Biomolecular Screening 8, no. 2 (2003): 176–84. http://dx.doi.org/10.1177/1087057103252304.

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With the increasing use of fluorescence-based assays in high-throughput screening (HTS), the possibility of interference by fluorescent compounds needs to be considered. To investigate compound interference, a well-defined sample set of biologically active compounds, LOPAC™, was evaluated using 4 fluorescein-based fluorescence polarization (FP) assays. Two kinase assays, a protease assay, and a phosphatase assay were studied. Fluorescent compound interference and light scattering were observed in both mixture- and single-compound testing under certain circumstances. In the kinase assays, which

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Ding, Mei, Ying Jie Lei, and Ou Yang Jie. "2-(2'- Chloro Phenyl)- 5- (2'-Hydroxyl Phenyl)-1,3,4-Oxadiazole as a Florescent Probe for DNA Determination." Advanced Materials Research 301-303 (July 2011): 361–65. http://dx.doi.org/10.4028/www.scientific.net/amr.301-303.361.

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In recent years, fluorescence spectrometry was widely used in quantitative determination of DNA. In this paper, a convenient synthesis of a new fluorescent 2-(2'- Chloro phenyl)- 5- (2'- hydroxyl phenyl)-1,3,4-oxadiazole (HOXD) was realized. Experimental data showed that fluorescence of HOXD could be quenched by DNA and the decreased fluorescence intensity of HOXD resulting from fluorescence quenching is proportional to DNA concentrations suggesting that HOXD could be used as a new fluorescent probe for quantitative determination of DNA. Optimal experimental conditions for DNA analysis were al

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Jiao, Chun Lian, Yun Fang Wu, Chun Yang Hou, et al. "Determine the Consumption of Fluorescent Scale Inhibitor SC260 Using Dibenzofuran-2-Sulfonic Acid Hydrate." Advanced Materials Research 997 (August 2014): 247–50. http://dx.doi.org/10.4028/www.scientific.net/amr.997.247.

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Fluorescence spectra and signal stability of the fluorescent scale inhibitor SC260 and dibenzofuran-2-sulfonic acid hydrate in deionized water and in seawater concentration experiment were described. There was no impact on respective excitation and emission peaks of each other and the change of fluorescence intensity was no more than 5%. The relationship between fluorescence intensity and concentration of SC260 and BFN were linear. Because the fluorescence signals of SC260 and BFN were stable in seawater concentration experiment, the consumption of fluorescent inhibitor SC260 in seawater was s

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