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Articles de revues sur le sujet « Non-toxic fixative »

Auteur : Grafiati

Publié le 7 juin 2025

Mis à jour le 2 août 2025

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1

Montanaro, Jacqueline, Daniela Gruber, and Nikolaus Leisch. "Improved ultrastructure of marine invertebrates using non-toxic buffers." PeerJ 4 (March 31, 2016): e1860. http://dx.doi.org/10.7717/peerj.1860.

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Many marine biology studies depend on field work on ships or remote sampling locations where sophisticated sample preservation techniques (e.g., high-pressure freezing) are often limited or unavailable. Our aim was to optimize the ultrastructural preservation of marine invertebrates, especially when working in the field. To achieve chemically-fixed material of the highest quality, we compared the resulting ultrastructure of gill tissue of the musselMytilus eduliswhen fixed with differently buffered EM fixatives for marine specimens (seawater, cacodylate and phosphate buffer) and a new fixative

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Dong, Chenghao, Wei Xin, and Yunjun Luo. "Synthesis and application of a cationic waterborne polyurethane fixative using quaternary ammonium diol as a chain extender." RSC Advances 8, no. 73 (2018): 42041–48. http://dx.doi.org/10.1039/c8ra09123d.

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Muñiz, E., A. Romero, L. Rodríguez-Mateo, R. Martínez-Rodríguez, and R. R. Gragera. "A Novel Non-toxic Fixative Solution of Complucad for Histology and Immunohistochemistry." Journal of Histotechnology 23, no. 1 (2000): 29–36. http://dx.doi.org/10.1179/his.2000.23.1.29.

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Sachdev, Sanpreet Singh, Tabita Joy Chettiankandy, Manisha Ahire Sardar, Prajwalit Prakash Kende, Rajesh Prabhakar Gaikwad, and Lynette Custodio Fernandes. "Utilizing Almond Oil with Vitamin E as an Alternative Fixative to Formalin." Annals of Pathology and Laboratory Medicine 9, no. 6 (2022): A121–125. http://dx.doi.org/10.21276/apalm.3169.

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Introduction: The health hazards resulting from exposure to formalin have given rise to the need of developing safer alternative fixatives. Almond oil has been widely used in the aromatherapy and cosmetic industry for its good penetrating and skin-rejuvenating properties, whereas vitamin E is a widely known anti-oxidant. The present study aimed to test the fixative efficacy of almond oil with vitamin E as compared to formalin. Material and Methods: The present study was conducted on 42 tissue specimens obtained by crown lengthening procedure or other minor surgical procedures. The specim

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Zappulli, V., F. Torrigiani, P. Detillo, et al. "Non-toxic acid-free glyoxal fixative for veterinary histopathology, immunohistochemistry and molecular analysis." Journal of Comparative Pathology 203 (May 2023): 69–70. http://dx.doi.org/10.1016/j.jcpa.2023.03.102.

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Morgan, Kevin T. "Approaches to the Identification and Recording of Nasal Lesions in Toxicology Studies." Toxicologic Pathology 19, no. 4_part_1 (1991): 337–51. http://dx.doi.org/10.1177/0192623391019004-103.

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The identification, recording, and interpretation of nasal lesions can be a difficult task in toxicology studies. The objective of this article is to provide some guidelines for approaches to nasal toxicologic pathology, based on the author's experience and information available in the published literature. Identification of treatment-induced nasal lesions requires adequate in-life and post-mortem observation, and thorough histopathology. Histopathologic assessment is dependent upon high quality and consistent histologic preparations, adequate knowledge of nasal anatomy and histology, and expe

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Thangamani, Sowmiya Shri, Swaathi Ravindran, Magesh Karuppur Thiagarajan, Sathya Kumar Mayilvakanam, Aravindhan Ravi, and Sivachandran Annamalai. "Rethinking tissue preservation: A review of non-toxic and environmentally sustainable fixatives." Annals of Diagnostic Pathology 78 (October 2025): 152500. https://doi.org/10.1016/j.anndiagpath.2025.152500.

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Thevenon, M. F., A. Pizzi, and J. P. Haluk. "One-step tannin fixation of non-toxic protein borates wood preservatives." Holz als Roh- und Werkstoff 56, no. 1 (1998): 90. http://dx.doi.org/10.1007/s001070050272.

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Soldat, Zinaida, Jonas Keiler, Markus Kipp, Marzia Venuto, Helen Brackelmann, and Julia Uzdil. "Tissue-fixation of neuronal and glial structures for immunohistochemistry using a non-toxic food preservative." Annals of Anatomy - Anatomischer Anzeiger 260 (June 2025): 152566. https://doi.org/10.1016/j.aanat.2025.152566.

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Dalpozzo, Renato, Nicola Della Ca’, Bartolo Gabriele, and Raffaella Mancuso. "Recent Advances in the Chemical Fixation of Carbon Dioxide: A Green Route to Carbonylated Heterocycle Synthesis." Catalysts 9, no. 6 (2019): 511. http://dx.doi.org/10.3390/catal9060511.

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Carbon dioxide produced by human activities is one of the main contributions responsible for the greenhouse effect, which is modifying the Earth’s climate. Therefore, post-combustion CO2 capture and its conversion into high value-added chemicals are integral parts of today’s green industry. On the other hand, carbon dioxide is a ubiquitous, cheap, abundant, non-toxic, non-flammable and renewable C1 source. Among CO2 usages, this review aims to summarize and discuss the advances in the reaction of CO2, in the synthesis of cyclic carbonates, carbamates, and ureas appeared in the literature since

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Muss, Wolfgang H. "PRO’s for a multiple/repeated use and safe disposal with recovery of osmiumtetroxide solution(s) in routine EM." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 1 (1992): 754–55. http://dx.doi.org/10.1017/s0424820100124173.

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Double fixation with an/aldehyde(s) and osmiumtetroxide is most commonly employed to process tissues for electron microscopy. The metal Os is precious and recycling would keep a toxic substance out of the environment and conserves a non-renewable resource. Since the pure substance is expensive, the handling of crystals & solutions is critical if not hazardous, disposal of used working solutions seems to be problematic (waste or recovery?; How to do it properly/safely according to new regulations concerning disposal of harmful and toxic lab-chemicals?..) one looks out for solutions. Searchi

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Aguilar-Garrido, Antonio, Ana Romero-Freire, Minerva García-Carmona, Francisco J. Martín Peinado, Manuel Sierra Aragón, and Francisco J. Martínez Garzón. "Arsenic Fixation in Polluted Soils by Peat Applications." Minerals 10, no. 11 (2020): 968. http://dx.doi.org/10.3390/min10110968.

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Soil arsenic (As) pollution is still a major concern due to its high toxicity and carcinogenicity, thus, the study of decontamination techniques, as the organic amendment applications, keeps upgrading. This research evaluates the potential remediation of peat in different As-polluted soils, by assessing the decrease of As solubility and its toxicity through bioassays. Obtained reduction in As solubility by peat addition was strongly related to the increase of humic substances, providing colloids that allow the complexation of As compounds. Calcareous soils have been the least effective at buff

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Yueh, Lih-Yuh, and David L. Hensley. "PESTICIDE INFLUENCE ON NITROGEN FIXATION AND MODULATION BY SOYBEAN AND LIMA BEAN." HortScience 25, no. 9 (1990): 1145f—1145. http://dx.doi.org/10.21273/hortsci.25.9.1145f.

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The influence of 12 pesticides on C2H4 reduction and modulation of soybean (Glycine max L. Merr.) and lima bean (Phaseolus lunatus L.) was evaluated. All except diazinon were innocuous at 3× the label rate. Diazinon decreased C2H4 reduction of soybean 2 days after application, but not after 7 days or at normal label rates. Nitrogen fixation of excised nodules imbibed with diazinon indicated that it may have directly affected nitrogenase function. Soybean nodule numbers were decreased by application of 3× rates of methomyl and trifluralin, but lima bean nodule numbers were decreased only by tri

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Sharma, Sadhana, Akhila Rajan, Shyoram Sharma, and Rakesh Kumar Sharma. "PLASTINATION: AN OVERVIEW OF THE REVOLUTIONARY TECHNIQUE IN PRESERVING BIOLOGICAL SPECIMENS FOR EDUCATION AND RESEARCH." International Journal of Research in Ayurveda and Pharmacy 16, no. 2 (2025): 156–58. https://doi.org/10.7897/2277-4343.16262.

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Plastination is a novel technique for biological specimen preservation. Plastination substitutes curable polymers for water and lipids in tissues, making specimens long-lasting, non-toxic, and odorless in contrast to conventional preservation methods, which frequently pose health risks and need upkeep. Fixation, dehydration, forced impregnation, and curing are some of the steps in the process; modifications such as the S10 technique and polyester polymers are used to meet specific needs. Clear anatomical visualization provided by plastinated specimens is advantageous for medical research, teac

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Jayaprasad, B., P. S. Sharavanan, and R. Sivaraj. "Acute Toxicity and Dose Fixation Studies on Chloroxylon swietenia Dc Bark Extracts on Streptozotocin Induced Diabetic Rats." International Letters of Natural Sciences 48 (November 2015): 8–13. http://dx.doi.org/10.18052/www.scipress.com/ilns.48.8.

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Diabetes mellitus (DM) is a chronic metabolic disease with the highest rates of prevalence and mortality worldwide. Chloroxylonswietenia has been used extensively in folkloric medicine. The present study aims to determine the acute toxicity of Chloroxylonswietenia bark methanol (CSBMEt) and aqueous extracts (CSBAEt) (100, 150, 250, 500 and 1000 mg/kg body weight) and dose fixation of CSBMEt and CSBAEt in streptozotocin induced diabetic rats. Diabetes was induced in male albino wistar rats by single intraperitoneal injection of streptozotocin (50mg/kg b.w). The diabetic rats were administered w

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Yang, Zhenqi, Chang Qiao, Jiayun Liu, et al. "The Current Status and Prospects of Poly(Lactic Acid) Applications in Clinical Treatment." Journal of Biomedical Nanotechnology 20, no. 7 (2024): 1049–61. http://dx.doi.org/10.1166/jbn.2024.3826.

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Poly(lactic acid) (PLA) is a biodegradable and bio-based polymer that has gained significant attention as an environmentally friendly alternative to traditional petroleum-based plastics. PLA is derived from renewable resources like corn starch or sugarcane through a fermentation process that converts sugars into lactic acid, which is then synthesized into lactic acid. As a bioabsorbable synthetic polyester, PLA has the following benefits, biodegradability, biodegradability, renewable source, non-toxic, reduced greenhouse gas emissions, energy savings. With the emergence of new manufacturing te

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Jayaprasad, B., P. S. Sharavanan, and R. Sivaraj. "Acute Toxicity and Dose Fixation Studies on <i>Chloroxylon swietenia</i> Dc Bark Extracts on Streptozotocin Induced Diabetic Rats." International Letters of Natural Sciences 48 (November 3, 2015): 8–13. http://dx.doi.org/10.56431/p-5vvr53.

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Diabetes mellitus (DM) is a chronic metabolic disease with the highest rates of prevalence and mortality worldwide. Chloroxylonswietenia has been used extensively in folkloric medicine. The present study aims to determine the acute toxicity of Chloroxylonswietenia bark methanol (CSBMEt) and aqueous extracts (CSBAEt) (100, 150, 250, 500 and 1000 mg/kg body weight) and dose fixation of CSBMEt and CSBAEt in streptozotocin induced diabetic rats. Diabetes was induced in male albino wistar rats by single intraperitoneal injection of streptozotocin (50mg/kg b.w). The diabetic rats were administered w

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Wartiti Mohammed Adnane, El, Enneffah Wafaa, Bouatia Mustapha, El Jaoudi Rachid, Ait El Cadi Mina, and Bousliman Yassir. "RISK MANAGEMENT RELATED TO THE PRESENCE OF LEAD IN DRINKING WATER: A LITERATURE REVIEW." International Journal of Advanced Research 10, no. 03 (2022): 1027–31. http://dx.doi.org/10.21474/ijar01/14487.

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Background: Lead is classified as a toxic element because of its adverse health effects. World Health Organization fixes its tolerance limit at 10Î¼g/l. Lead in drinking water mainly comes from the dissolution of lead present in pipes, especially in old buildings. Resources and procedures: Through a literature review, we analyzed articles dealing with lead intoxication through drinking water. Used key words for the search were: lead, water and lead intoxication. The aim is to focus on the causes of this intoxication, the different consequences on the body, the standards in use and the prophyla

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Wartiti Mohammed Adnane, El, Enneffah Wafaa, Bouatia Mustapha, El Jaoudi Rachid, Ait El Cadi Mina, and Bousliman Yassir. "RISK MANAGEMENT RELATED TO THE PRESENCE OF LEAD IN DRINKING WATER: A LITERATURE REVIEW." International Journal of Advanced Research 10, no. 03 (2022): 1027–31. http://dx.doi.org/10.21474/ijar01/14487.

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Background: Lead is classified as a toxic element because of its adverse health effects. World Health Organization fixes its tolerance limit at 10Î¼g/l. Lead in drinking water mainly comes from the dissolution of lead present in pipes, especially in old buildings. Resources and procedures: Through a literature review, we analyzed articles dealing with lead intoxication through drinking water. Used key words for the search were: lead, water and lead intoxication. The aim is to focus on the causes of this intoxication, the different consequences on the body, the standards in use and the prophyla

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Mano, Miguel, Cristina Teodósio, Artur Paiva, Sérgio Simões, and Maria C. Pedroso de Lima. "On the mechanisms of the internalization of S413-PV cell-penetrating peptide." Biochemical Journal 390, no. 2 (2005): 603–12. http://dx.doi.org/10.1042/bj20050577.

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Cell-penetrating peptides have been shown to translocate across eukaryotic cell membranes through a temperature-insensitive and energy-independent mechanism that does not involve membrane receptors or transporters. Although cell-penetrating peptides have been successfully used to mediate the intracellular delivery of a wide variety of molecules of pharmacological interest both in vitro and in vivo, the mechanisms by which cellular uptake occurs remain unclear. In the face of recent reports demonstrating that uptake of cell-penetrating peptides occurs through previously described endocytic path

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BELANGER, G., J. E. WINCH, and J. L. TOWNSHEND. "CARBOFURAN EFFECTS ON ESTABLISHMENT OF LEGUMES IN RELATION TO PLANT GROWTH, NITROGEN FIXATION, AND SOIL NEMATODES." Canadian Journal of Plant Science 65, no. 2 (1985): 423–33. http://dx.doi.org/10.4141/cjps85-057.

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Field experiments were conducted to determine the effects of carbofuran on the establishment and subsequent yields of sod-seeded legumes. The effects of carbofuran on plant growth, nodulation and nitrogen fixation of birdsfoot trefoil (Lotus corniculatus L.) in non-sterilized and sterilized soil were evaluated in growth cabinet experiments. In the field experiments carbofuran, applied immediately after seeding, had a positive effect on plant stand and seedling dry matter production of birdsfoot trefoil and alfalfa (Medicago sativa L. ssp. falcata L.) in the weeks following seeding. In the firs

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Interesova, Elena Aleksandrovna, Alexander Alekseevich Rostovtsev, and Alexey Sergeevich Knyazev. "Prospects for using the preparation “Aldofix” as a substitute for formalin in studies of juvenile fish." Rybovodstvo i rybnoe hozjajstvo (Fish Breeding and Fisheries), no. 11 (November 1, 2020): 74–81. http://dx.doi.org/10.33920/sel-09-2011-07.

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The study of juvenile fish is a necessary component of fishery research, is of great theoretical interest and is widely used in the study of ontogeny, influence of various environmental factors on the final trophic link of aquatic ecosystems. Traditionally, fry samples are fixed with a 4–5 % formalin solution. However, formalin is a toxic compound, which entails special requirements for the organization of work in laboratory. In order to search for alternative means of fixing biological preparations, an experimental assessment of the possibility of using the drug “Aldofix” as a substitute for

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Guo, Chenchen, Li Zhang, Qianqian Zhao, et al. "Host-Species Variation and Environment Influence Endophyte Symbiosis and Mycotoxin Levels in Chinese Oxytropis Species." Toxins 14, no. 3 (2022): 181. http://dx.doi.org/10.3390/toxins14030181.

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Oxytropis plants are widely distributed in the grasslands in northern China. Some Oxytropis species have been reported to contain the mycotoxin swainsonine, an alkaloid which causes poisoning in livestock, referred to as locoism. Previous studies showed that endophytic fungi (Alternaria oxytropis) symbiotically associate with these Oxytropis species to produce swainsonine. However, the influence of variation within the Oxytropis genus on the fixation or loss of symbiosis and toxicity is poorly understood, as is the influence of environmental factors. Here we used a collection of 17 common Oxyt

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Kan, C. W., C. W. M. Yuen, W. Y. Tsoi, and C. K. Chan. "Ink-jet printing for Plasma-treated Cotton Fabric with Biomaterial." ASEAN Journal of Chemical Engineering 11, no. 1 (2011): 1. http://dx.doi.org/10.22146/ajche.50037.

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Currently, sodium alginate is commonly used for preparing the printing medium for digital ink-jet printing due to its ready solubility and excellent stability even at high-temperature fixation treatments. Similar to sodium alginate, chitosan is also widely used as novel biomaterial. As a natural polymer, sodium alginate and chitosan are biocompatible, biodegradable and non-toxic. Therefore, chitosan may be used as a chemical for preparing printing medium for digital ink-jet printing for cotton fabric. Recently, low temperature plasma (LTP) treatment has proved to be an effective pretreatment m

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M.P., Sugumaran, Kaja Mohammed., Natarajan K., et al. "Composting and Liquid Formulations: Panacea to Better Yield in Agriculture: A Review." Journal of Geography, Environment and Earth Science International 28, no. 10 (2024): 41–56. http://dx.doi.org/10.9734/jgeesi/2024/v28i10824.

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Liquid formulations, including aqueous, oil, and polymer-based products, often use polysaccharides to alter fluid properties. Liquid inoculants offer cost-effective alternatives to solid carriers, particularly benefiting small producers in India by overcoming transportation and processing challenges. Ideal liquid inoculants are non-toxic, low-cost, uniform, nutrient-supplemented, and support rapid microorganism release and growth. Effective formulations stabilize organisms, ensure easy field delivery, protect against environmental factors, and enhance microbial activity. Rich in nutrients and

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Tamara, Calvo-Correas, Santamaría-Echart Arantzazu, Saralegi Ainara, et al. "Thermally-responsive biopolyurethanes from a biobased diisocyanate." European Polymer Journal 70 (July 10, 2015): 173–85. https://doi.org/10.1016/j.eurpolymj.2015.07.022.

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In this work, segmented biopolyurethanes with thermally-activated shape-memory properties were synthesized and characterized. All the employed starting materials were derived from renewable sources. The macrodiol, which forms the hard segment, was derived from castor oil, while the soft segment was composed of a diisocyanate from the amino acid lysine, as well as a chain extender from corn sugar. The effect of component molar ratios and switching temperature on the shape-memory behavior was analyzed. Thermal analysis of the biopolyurethanes shows a phase separated structure. Programming at dif

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Trukhan, I. S., N. N. Dremina, and I. A. Shurygina. "The effect of copper acetate on hepatocyte metabolism in vitro." Acta Biomedica Scientifica 9, no. 6 (2024): 12–21. https://doi.org/10.29413/abs.2024-9.6.2.

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Background. Copper ions are necessary for maintaining basic physiological processes in the mammalian organism. However, their excessive absorption or accumulation in cells can lead to the development or exacerbation of various pathological processes. The cytotoxic and genotoxic effects of high concentrations of copper compounds are currently well studied in various cell cultures, whereas the effect of non-toxic amounts of copper ions on physiological processes in cells, including during their cultivation, has been extremely poorly studied.The aim of the study. To investigate the effect of copp

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Suldina, E. V., A. V. Masilenko, N. A. Feoktistova, and I. I. Bogdanov. "INDICATION OF ENZYME GENE FRAGMENTS OF BACILLUS MEGATERIUM BACTERIA." Vestnik of Ulyanovsk state agricultural academy 230 (September 25, 2021): 74–78. http://dx.doi.org/10.18286/1816-4501-2021-3-74-78.

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The soil microbial component plays a critical role in maintaining the soil functionality, performing several vital functions such as soil formation, decomposition of dead and decayed organic matter, circulation of macro and micro elements and transformation of toxic chemicals into non-toxic forms. Various Bacillus species, including B. megaterium, are known to fix atmospheric nitrogen. To ensure nitrogen fixation and diversity analysis of diazotrophs, the most widely used gene marker is nifH, which is responsible for synthesis of proteins of the nitrogenase complex. Various soil microorganisms

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Chatterjee, Rupak, and Asim Bhaumik. "Carboxylation of Alkenes and Alkynes Using CO2 as a Reagent: An Overview." Current Organic Chemistry 26, no. 1 (2022): 60–70. http://dx.doi.org/10.2174/1385272825666211206090621.

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: CO2 fixation reactions are of paramount interest both from economical and environmental perspectives. As an abundant, non-toxic, and renewable C1 feedstock, CO2 can be utilized for the synthesis of fuels and commodity chemicals under elevated reaction conditions. The major challenge in the CO2 utilization reactions is its chemical inertness due to high thermodynamic stability and kinetic barrier. The carboxylation of unsaturated hydrocarbons with CO2 is an important transformation as it forms high-value reaction products having industrial as well as medicinal importance. This mini-review is

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Lauridsen, Henrik, Daniel Klingberg Johansson, Christina Carøe Ejlskov Pedersen, et al. "The curious case of the Dana platypus and what it can teach us about how lead shotgun pellets behave in fluid preserved museum specimens and may limit their scientific value." PLOS ONE 19, no. 10 (2024): e0309845. http://dx.doi.org/10.1371/journal.pone.0309845.

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Fluid preserved animal specimens in the collections of natural history museums constitute an invaluable archive of past and present animal diversity. Well-preserved specimens have a shelf-life spanning centuries and are widely used for e.g. anatomical, taxonomical and genetic studies. The way specimens were collected depended on the type of animal and the historical setting. As many small mammals and birds were historically collected by shooting, large quantities of heavy metal residues, primarily lead, may have been introduced into the sample in the form of lead shot pellets. Over time, these

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Aggarwal, Divyanshu, Siddharth Sharma, and Manoj Gupta. "Porous Mg–Hydroxyapatite Composite Incorporated with Aloe barbadensis Miller for Scaphoid Fracture Fixation: A Natural Drug Loaded Orthopedic Implant." Applied Sciences 14, no. 4 (2024): 1512. http://dx.doi.org/10.3390/app14041512.

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The current study focused on developing a biodegradable implant composite material that could work in a multitude of applications. The fabricated composite showcases a porous matrix of Mg–hydroxyapatite developed through the spacer-holder technique. The composite was incorporated with a natural medicinal plant, i.e., Aloe barbadensis miller, commonly known as the Aloe vera plant. The final composite was enveloped under a thin layer of PLA to work as an encapsulated drug as well as a composite material for implant applications. Further, the mechanical and microstructural properties were analyze

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Litak, Jakub, Wojciech Czyzewski, Michał Szymoniuk, et al. "Hydroxyapatite Use in Spine Surgery—Molecular and Clinical Aspect." Materials 15, no. 8 (2022): 2906. http://dx.doi.org/10.3390/ma15082906.

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Hydroxyapatite possesses desirable properties as a scaffold in tissue engineering: it is biocompatible at a site of implantation, and it is degradable to non-toxic products. Moreover, its porosity enables infiltration of cells, nutrients and waste products. The outcome of hydroxyapatite implantation highly depends on the extent of the host immune response. Authors emphasise major roles of the chemical, morphological and physical properties of the surface of biomaterial used. A number of techniques have been applied to transform the theoretical osteoconductive features of HAp into spinal fusion

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Barbosa, Luzinete Pereira, Lucio Salgado, N. Filho Karsokas, and Márcia Kazumi Nagamine. "Characterization of HDH Titanium Powder for Biomaterial Applications." Materials Science Forum 660-661 (October 2010): 188–93. http://dx.doi.org/10.4028/www.scientific.net/msf.660-661.188.

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Several materials have been used as surgical implants since the 16th century. Materials can be implanted in the human body; however, the choice of the appropriate material is based on the required mechanical, physical, chemical, and biological properties. Until now two classes of metals namely stainless steel and cobalt-chromium-molybdenum alloys became known as materials for implant applications. They were considered suitable for surgical implant procedures but many researchers and surgeons were not completely satisfied with their performance. The main problem of the modern science is to find

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Pavitra, Khandelwal Madhuri Nigam. "Rust Dyeing on Rayon Fabric and its Evaluation." Journal Of The Textile Association (JTA) 85, no. 2 (2024): 1–9. https://doi.org/10.5281/zenodo.13364257.

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Background: Textile wet processing not only uses toxic chemicals that are harmful to people and theenvironment but also uses a large number of non-renewable resources, leading to their depletion. Thestudy on rust dyeing of rayon fabric was conducted, to address these issues by exploring the use of rustedobjects to produce unique designs using very low quantities of water and chemicals.Methods: Rust dyeing was carried out using two methods: Method I used vinegar as a mordant andsteaming (for 1 hour) for fixation, and Method II was carried out for 3 days in the absence of vinegarand steaming. Bo

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Abuh, Leonard Omachoko, Nefisat Abdulmalik, and Latifat Ojochona Onolu. "Comparative Study of the Effect of Mordants on Dyeing Cotton Fabric with Anacardium Occidentale’s (Cashew) Root Grown in Ankpa, Kogi, Nigeria." Shodh Sari-An International Multidisciplinary Journal 03, no. 01 (2024): 71–84. http://dx.doi.org/10.59231/sari7657.

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Pollution associated with synthetic dyes have caused several health hazards both to human and the environment. In order to curb this trend, especially from industrial effluents, a non – toxic, biodegradable and environmentally compatible dye from nature have to be sourced. In view of these, the root of anacardium occidentale was extracted of its dye and applied on fabrics alone and in the presence of mordants and also applied as colorant on food, cosmetics and alcoholic drinks. The root of anacardium occidantale collected was dried at room temperature and pulverized. 200g was weighed and extra

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Koksharova, Olga A., та Nina A. Safronova. "Non-Proteinogenic Amino Acid β-N-Methylamino-L-Alanine (BMAA): Bioactivity and Ecological Significance". Toxins 14, № 8 (2022): 539. http://dx.doi.org/10.3390/toxins14080539.

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Research interest in a non-protein amino acid β-N-methylamino-L-alanine (BMAA) arose due to the discovery of a connection between exposure to BMAA and the occurrence of neurodegenerative diseases. Previous reviews on this topic either considered BMAA as a risk factor for neurodegenerative diseases or focused on the problems of detecting BMAA in various environmental samples. Our review is devoted to a wide range of fundamental biological problems related to BMAA, including the molecular mechanisms of biological activity of BMAA and the complex relationships between producers of BMAA and the en

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Shetty, Urvashi A., Chethana Dinakar, Audrey M. D’Cruz, Pushparaja Shetty, and Vishnudas Prabhu. "Plastination - A method for preservation of oral hard and soft tissue biopsy specimen v/s the conventional method of preservation with formalin." Journal of Oral and Maxillofacial Pathology 27, no. 3 (2023): 515–19. http://dx.doi.org/10.4103/jomfp.jomfp_132_23.

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Context: Plastination is one of the most advanced method for preserving perishable biological specimen as well as tissue samples as for a longer period of time using polymers. Aims: To evaluate the changes in dimension of hard and soft tissue specimens after plastination procedure and compare it with the conventional method of preservation in formalin. Settings and Design: Institution-based retrospective study. Methods and Material: The study included 20 formalin-fixed soft tissue and 10 formalin-fixed hard tissue specimens. All the specimens were plastinated which involved four basic steps of

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Iskusnykh, O. Y., A. Y. Iskusnykh, and D. O. Iskusnykh. "Cyanobacteria - promising objects of biotechnology and medicine." Proceedings of the Voronezh State University of Engineering Technologies 83, no. 4 (2021): 70–77. http://dx.doi.org/10.20914/2310-1202-2021-4-70-77.

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Cyanobacteria are the oldest microorganisms capable of photosynthesis and nitrogen fixation. The wide prevalence and high adaptability of cyanobacteria is provided by secondary metabolites of various chemical nature. Among them are polyketides, non-ribosomal peptides, non-protein amino acids, lipopolysaccharides, alkaloids, terpenoids and others with a wide range of biological activity. Cyanobacteria have a huge potential for discovering new natural molecules, studying the ways of their biosynthesis, developing new pharmaceuticals, and their clinical application. The advantage of cyanobacteria

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Syal, Priyanka, Charan K. Singh, and Kuldip Gupta. "Studies on preservation of gross pathological cardiac lesions by Thermocol plastination." Veterinarski arhiv 92, no. 2 (2022): 193–204. http://dx.doi.org/10.24099/vet.arhiv.1343.

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Demonstration of gross lesions for educational purposes is often based on wet specimens, preserved in formalin, that emit hazardous formaldehyde vapors. This study is a pioneering attempt to plastinate pathological lesions in animal tissues using the economical Thermocol instead of costly resins, viz. silicon, epoxy and polypropylene. Six bovine heart samples, showing pathological lesions, were fixed with 5% formol saline, followed by dehydration in pure acetone, and impregnation with 15% Thermocol in organic solvent. Finally, curing of specimens was undertaken using Touchwood. Three gross les

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Popova, Nadezhda, Grigoriy Artemiev, Inga Zinicovscaia, et al. "Biogeochemical Permeable Barrier Based on Zeolite and Expanded Clay for Immobilization of Metals in Groundwater." Hydrology 10, no. 1 (2022): 4. http://dx.doi.org/10.3390/hydrology10010004.

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Groundwater samples contaminated with potentially toxic elements (PTE), including metals and nitrate ions, were collected at a depth of 8-10 m from the Siberian Chemical Plant multicomponent waste storage. The possibility of developing a permeable biogeochemical barrier with zeolite and lightweight expanded clay aggregate (LECA) was investigated. The mass fraction and properties of several metals (Mn, Fe, Co, Ni, Cu, Zn, Cd, Hg and Pb) were determined to investigate their fixation on the chosen materials at the given experimental conditions. It was established that metals in sulfide or phospha

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Li, Xi, Zunyan Wang, Yiyong Chen, and Qi Li. "Polystyrene Microplastics Induce Photosynthetic Impairment in Navicula sp. at Physiological and Transcriptomic Levels." International Journal of Molecular Sciences 26, no. 1 (2024): 148. https://doi.org/10.3390/ijms26010148.

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The rising concentration of microplastics (MPs) in aquatic environments poses increasing ecological risks, yet their impacts on biological communities remain largely unrevealed. This study investigated how aminopolystyrene microplastics (PS-NH2) affect physiology and gene expression using the freshwater alga Navicula sp. as the test species. After exposing Navicula sp. to high PS-NH2 concentrations for 24 h, growth was inhibited, with the most significant effect seen after 48 h. Increasing PS-NH2 concentrations reduced chlorophyll content, maximum photochemical quantum yield (Fv/Fm), and the p

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Kiatkittipong, Kunlanan, Muhammad Amirul Amin Mohamad Shukri, Worapon Kiatkittipong, et al. "Green Pathway in Utilizing CO2 via Cycloaddition Reaction with Epoxide—A Mini Review." Processes 8, no. 5 (2020): 548. http://dx.doi.org/10.3390/pr8050548.

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Carbon dioxide (CO2) has been anticipated as an ideal carbon building block for organic synthesis due to the noble properties of CO2, which are abundant renewable carbon feedstock, non-toxic nature, and contributing to a more sustainable use of resources. Several green and proficient routes have been established for chemical CO2 fixation. Among the prominent routes, this review epitomizes the reactions involving cycloaddition of epoxides with CO2 in producing cyclic carbonate. Cyclic carbonate has been widely used as a polar aprotic solvent, as an electrolyte in Li-ion batteries, and as precur

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Manhiça, Alberto António, Ernesto Uetimane Júnior, Mohamed Jebrane, and Peter R. Gillah. "Durability Response of Perishable Wood Species after Pressure Impregnation of Extractives-Based Solutions from Naturally Durable Species of Mozambique." East African Journal of Forestry and Agroforestry 7, no. 1 (2024): 423–41. http://dx.doi.org/10.37284/eajfa.7.1.2414.

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Poor natural durability is a key feature hindering the acceptance of most lesser-used wood species, such as Brachstegia spiciformis, Julbernadia globiflora, and Sterculia appendiculata. Generally, the durability of the aforementioned wood species is improved by impregnating its timber with toxic chemicals contained in standard wood preservatives. In this study, eco-friendly wood preservatives based on extractives sourced from sawdust of naturally durable species such as chanfuta (Afzelia quanzensis) and mecrusse (Androstachys jonhsonnii) were used to treat the group of aforementioned perishabl

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Prodhan, Md Yeasin, Md Bokhtiar Rahman, Aminur Rahman, et al. "Characterization of Growth-Promoting Activities of Consortia of Chlorpyrifos Mineralizing Endophytic Bacteria Naturally Harboring in Rice Plants—A Potential Bio-Stimulant to Develop a Safe and Sustainable Agriculture." Microorganisms 11, no. 7 (2023): 1821. http://dx.doi.org/10.3390/microorganisms11071821.

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Eighteen pesticide-degrading endophytic bacteria were isolated from the roots, stems, and leaves of healthy rice plants and identified through 16S rRNA gene sequencing. Furthermore, biochemical properties, including enzyme production, dye degradation, anti-bacterial activities, plant-growth-promoting traits, including N-fixation, P-solubilization, auxin production, and ACC-deaminase activities of these naturally occurring endophytic bacteria along with their four consortia, were characterized. Enterobacter cloacae HSTU-ABk39 and Enterobacter sp. HSTU-ABk36 displayed inhibition zones of 41.5 ±

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Romano, Melisa S., Valeria Corne, Ricardo R. Azario, Emiliano Centurión, and María del Carmen García. "Valorization of Agroindustrial Waste as Biosorbent of Lead (II) in Solution and its Reuse in the Manufacture of Building Bricks." Recent Progress in Materials 07, no. 01 (2025): 1–16. https://doi.org/10.21926/rpm.2501002.

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Lead is a non-biodegradable toxic heavy metal. Biosorption process is an attractive technique to remediate lead-contaminated environments because it is simple, effective and low-cost. In addition, rice husk constitutes a highly available residual biomass that could be used as bioadsorbent. Thus, the aim of this study was to analyze the biosorption of lead on natural and chemically treated rice husk and evaluate the incorporation of the residue (biomass-contaminant) into ceramic matrices to immobilize the removed lead. Natural rice husk and alkaline activated rice husk were characterized and us

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Nechita, Aurel, Geta Mitrea, Gheorghe Raftu, et al. "General Treatment Principles in Alergies-Plastic Materials." Materiale Plastice 56, no. 1 (2019): 220–23. http://dx.doi.org/10.37358/mp.19.1.5155.

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The occurrence and evolution of the disease depend on the properties of the organism, the cortical inhibition prevents the development of anaphylactic shock in humans. In some people, the increased and altered sensitivity manifests itself in the form of idiosyncrasy. In idiosyncrasy, the reactivity of the organism is altered from different substances of antigenic nature These substances can be food (milk, strawberries, eggs) or drug substances (iodine, iodoform, bromine, etc.) (drug idiosyncrasy whose symptoms are not related to the specific pharmacodynamic properties of the substance), plasti

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Nege, Aondohemba Samuel, Endang Dewi Masithah, and Junaidi Khotib. "Trends in the Uses of Spirulina Microalga: A mini-review." Jurnal Ilmiah Perikanan dan Kelautan 12, no. 1 (2020): 149. http://dx.doi.org/10.20473/jipk.v12i1.17506.

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HighlightsTrends in the uses of Spirulina over different decades were critically examinedFindings from surveyed literature indicated that Spirulina utilization was mainly focused on its food and feed potential before the last 20-30 yearsThe review observed that research focused on the health and pharmaceutical uses, biofertilizer, bioplastic, cosmetic, bioenergy and pollution control applications of Spirulina are trends that sprouted out within the last 20-25 years.The review has successfully compiled numerous uses of Spirulina microalga for easy readership by readers since many studies have b

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Rivera Santillan, R. E., F. Patricio Ramirez, Y. Ayala Pichardo, E. Ordaz Romero, and V. Sanchez Jimenez. "Biosorption of Heavy Metals Using Organic Waste from Tequila Processing." Solid State Phenomena 262 (August 2017): 609–12. http://dx.doi.org/10.4028/www.scientific.net/ssp.262.609.

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In Mexico and in the world, the metallurgical, petroleum and chemical industries, among others, generate large amounts of pollutants, which when deposited in dams or discharged into rivers, ponds or directly into aquifers generate serious problems for the environment. Biosorption is the phenomenon of passive uptake of metal ions with non-living organic materials, known as biomass, which are generally industrial waste. Active uptake with live biomass is called bioaccumulation. Biosorption is based on the property of some types of inactive or dead biomass to uptake and accumulate these elements

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Tsyhanskyi, Viacheslav, and Olena Tsyhanska. "INFLUENCE OF THE ELEMENTS OF GROWING TECHNOLOGY ON THE ACTIVATION OF PLANT-MICROBIAL SYMBIOSIS AND THE PROCESSES OF NITROGEN LUCOSENOSIS AGROCENOSIS." Agriculture and Forestry, no. 1 (April 28, 2020): 61–72. http://dx.doi.org/10.37128/2707-5826-2020-1-5.

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In order to improve soil fertility, increase the productivity of agricultural crops, including alfalfa, and to make the best use of mineral fertilizers it is expedient to carry out liming in the range of 1.0-1.5 under hydrolytic acidity. It provides an increase in the amount of 1.2-1.8 tons of feed units per hectare of rotation area. The mobility of toxic elements of aluminum and manganese decreases in the limed soil. These processes contribute to nodule formation and an increase in the nitrogen fixation of alfalfa. The intensified activity of nitrogen fixation processes occurring in the root

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Maia, Camille Ferreira, Breno Ricardo Serrão da Silva, Bruno Lemos Batista, Andrzej Bajguz, and Allan Klynger da Silva Lobato. "24-Epibrassinolide Simultaneously Stimulates Photosynthetic Machinery and Biomass Accumulation in Tomato Plants under Lead Stress: Essential Contributions Connected to the Antioxidant System and Anatomical Structures." Agronomy 12, no. 9 (2022): 1985. http://dx.doi.org/10.3390/agronomy12091985.

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Several toxic pollutants are released into the atmosphere through human activities. Among these pollutants, lead (Pb) is a non-biodegradable element that can cause reduced cell division, impact negatively on the biosynthesis of photosynthetic pigments, and lower biomass accumulation, which can lead to plant death. 24-epibrassinolide (EBR) is a plant growth regulator with broad benefits on physiological functions and biochemical responses, conferring tolerance to plants against several biotic and abiotic stresses. The experiment was randomized with four treatments, two lead concentrations (0 an

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