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Showing 1 to 20 of 49 for “"Triclosan"”.
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Bioaccumulation of Triclocarban, Triclosan, and Methyl-triclosan in a North Texas Wastewater Treatment Plant Receiving Stream and Effects of Triclosan on Algal Lipid Synthesis.
Triclosan (TCS) and triclocarban (TCC), widely used antimicrobial agents found in numerous consumer products, are incompletely removed by wastewater treatment plant (WWTP) processing. Methyl-triclosan (M-TCS) is a more lipophilic metabolite of its parent compound, TCS. The focus of this study was …
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Evaluation of Triclosan Reactivity in Monochloraminated Waters
The antibacterial agent, triclosan, is widely used in many household personal care products, and it has recently been detected in wastewater treatment plant effluents and in source waters used for drinking water supply. Accordingly, the reactivity of triclosan with the disinfectants used in …
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The Chlorination of Triclosan: A Kinetic Study
Triclosan, 5-chloro-2-(2,4 dichlorophenoxy)phenol, is an anti-microbial additive in a plethora of Pharmaceutical and Personal Care Products (PPCPs) including, toothpastes, hand creams and soaps, and acne creams. Because many triclosan containing products are topical solutions that are readily …
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The Mechanisms, Products, and Kinetics of Triclosan-Free Chlorine Reactions
The kinetics, products, and reaction pathways of triclosan/free chlorine reactions were investigated for the pH range 3.5-11. Although pH dependent speciation occurs in both triclosan and free chlorine, only the reaction between HOCl and the phenolate-triclosan was found to play a significant role …
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ASSESSING THE GENOTOXICITY OF TRICLOSAN IN TADPOLES OF THE AMERICAN BULLFROG, LITHOBATES CATESBEIANUS.
… of the widely used antimicrobial agent Triclosan to American Bullfrog tadpoles. Lithobates catesbeianus tadpoles were reared in glass aquaria containing ultra-high purity water and were dosed with nominal concentrations of 2.3 µg/L, 23 µg/L, and 230 µg/L Triclosan, reflecting 1x, 10x, …
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Oxidation of Bisphenol A, Triclosan and 4-Nonylphenol by Fe-B* activated peroxide
The widely used Bisphenol A (BPA), triclosan (TCS) and nonylphenol (NP) are commonly encountered as contaminants in wastewater and surface water as a result of their incomplete treatment in traditional water treatment facilities. The presence of these compounds in our water resources poses direct …
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Synthesis and characterization of membrane with molecularly imprinted polymers for selective adsorption of triclosan
Submitted in fulfillment of the requirement for the degree Master of Applied Sciences in Chemistry, Durban University of Technology, Durban, South Africa, 2019.
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Bioakkumulation von Triclosan bei verschiedenen pH-Werten des Wassers und der Pyrethroide Cyfluthrin, Cypermethrin, Deltamethrin und Permethrin
… von 5-Chlor-2-(2,4-dichlorphenoxy)-phenol (Triclosan) im Zebrabärbling wurden bei unterschiedlichen pH-Werten des Wassers bestimmt. Es konnte gezeigt werden, daß im Widerspruch zu früher erhobenen Befunden sowohl die Kinetik der Akkumulation als auch der BCF-Wert von Triclosan vom pH-Wert …
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Desenvolvimento e avaliação de embalagem ativa incorporada com produto à base de triclosan para aplicação em carne bovina
… diferentes concentrações de produto à base de triclosan; II) avaliar suas propriedades físicas e mecânicas e suas características microscópicas; III) avaliar sua eficiência antimicrobiana in vitro sobre Staphylococcus aureus, Escherichia coli, Salmonella choleraesuis, Pseudomonas aeruginosa e …
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Formation of Chloroform and Other Chlorinated Byproducts by the Chlorination of Antibacterial Products
Triclosan is a widely used antibacterial agent found in many personal hygiene products. While it has been established that pure triclosan and free chlorine readily react, interactions between triclosan-containing products and free chlorine have not previously been analyzed. Sixteen double-blinded …
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Assessing interactions between nutrients and toxicity : influences of nitrogen and phosphorus on triclosan toxicity to the aquatic macrophyte "lemna gibba".
… study, influences of nutrient availability on triclosan toxicity to a model aquatic macrophyte Lemna gibba were explored. Triclosan effective concentrations varied by up to 6.5-fold depending on nutrient treatment and standardized endpoint. Mesocosm results validated these laboratory findings …
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Efficacy of triclosan soap against superficial dermatomycoses and scabies : a placebo-controlled study among 228 primary school children in Kilombero district, Mororgoro region, Tanzania
… was performed to assess the clinical efficacy of Triclosan against selected superficial dermatomycoses and scabies. The overall effect of regular soap use was also evaluated. Methods: 820 Tanzanian primary school children were examined for the presence of skin disorders. The clinical presentation …
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Concentrations of Triclosan in the City of Denton Wastewater Treatment Plant, Pecan Creek, and the Influent and Effluent of an Experimental Constructed Wetland
… seasonal and site variation in concentrations of triclosan (5-chloro-2-(2,4-dichlorophenoxy)phenol), an antibacterial additive. SNK separation after the highly significant ANOVA on ranked data were: summer = fall > winter = spring and influent > downstream = effluent = wetland inflow > wetland …
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Surface Engineered Novel Patterned Polymers to Remove Pathogenic Biofilms from Human Skin. Effective Removal of Antimicrobial Resistant Bacteria from Chronic Wounds
… or patterned (PT) PDMS with or without 1% or 10% triclosan Patterned PDMS + 10% triclosan (PT 10%) attracted significantly more live S. aureus and P. aeruginosa, as determined using Colony Forming Unit (CFU) analysis (*p<0.01), Scanning Electron Microscopy (SEM) (*p<0.01) and Confocal Scanning …
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Determination of Biodegradation Kinetics of Select Pharmaceuticals and Personal Care Products in an Activated Sludge System through Respirometry
… and personal care products (PPCPs) triclosan, caffeine, acetaminophen, estrone (E1), 17β estradiol (E2), and 17α ethinyl-estradiol (EE2). The activated sludge biomass used for respirometry testing was obtained from a local wastewater treatment plant (WWTP). The plant treats municipal …
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Effects of Quorum Quenchers on Aspergillus fumigatus Conidia Aggregation, Adhesion to Surfaces, and Biofilm Formation
… and biofilm formation. Notwithstanding, triclosan, as a synthetic antimicrobial, disrupts QS signal in some bacteria, yeasts, and dermatophytes through blocking the biosynthesis of amino acid and fatty acids in the microbes. In this study, triclosan quorum quenching role as well as the …
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An Investigation of Cytochrome Bd Quinol Oxidases of Vibrio Cholerae, Rhodobacter Sphaeroides, and Salmonella Typhimurium
… the assay to investigate the mechanism of triclosan, a widely used bactericide. It was found that triclosan might disrupt bacteria's growth by directly interrupting the membrane integrity.
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Quantum dot - molecularly imprinted polymer nanomaterials for the fluorescence sensing of selected pharmaceutical and personal care products
… for the detection in aquatic compartments of triclosan (TCS) and acetaminophen (AC) which fall within the pharmaceutical and personal care products (PPCPs) subclass of emerging chemical pollutants (ECPs). Semiconductor quantum dots possess significant advantages such as high fluorescence …
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Demonstration of novel enoyl-acyl carrier protein reductases in Vibrio cholerae
… first uncovered and named FabV, a new class of triclosan-resistant enoyl-ACP reductases. In vivo and in vitro analysis of the purified protein showed that FabV is an NADH-dependent ENR, and belongs to the same superfamily as FabI and FabL, two of the three previously characterized ENRs. Unlike …
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