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The exposure of bacteria to CdTe-core quantum dots: the importance of surface chemistry on cytotoxicity.
A series of water-soluble CdTe-core quantum dots (QDs) with diameters below 5.0 nm and functionalized at their surface with polar ligands such as thioglycolic acid (TGA) or the tripeptide glutathioneExpand
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Nucleic acid fluorochromes and flow cytometry prove useful in assessing the effect of chlorination on drinking water bacteria.
Flow cytometry (FCM), combined with staining using two fluorochromes (propidium iodide, PI, or SYBR Green II RNA gel stain, SYBR-II), was used to assess nucleic acid injuries to chlorinated drinkingExpand
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Demonstrating plasmid-based horizontal gene transfer in complex environmental matrices: a practical approach for a critical review.
Plasmid-based dissemination of antibiotic resistance genes in environmental microbial communities is a matter of concern for public health, but it remains difficult to study for methodologicalExpand
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Physicochemical properties and cellular toxicity of (poly)aminoalkoxysilanes-functionalized ZnO quantum dots.
Luminescent ZnO nanocrystals were synthesized by basic hydrolysis of Zn(OAc)(2) in the presence of oleic acid and then functionalized with (poly)aminotrimethoxysilanes in the presence ofExpand
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Highly chlorinated Escherichia coli cannot be stained by propidium iodide.
Several studies have shown that the staining by fluorochromes (DAPI, SYBR Green II, and TOTO-1) of bacteria is altered by chlorination. To evaluate the effect of chlorine (bleach solution) onExpand
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Inducibility of Tn916 conjugative transfer in Enterococcus faecalis by subinhibitory concentrations of ribosome-targeting antibiotics
Background Some antibiotics induce the dissemination of their own resistance genes by interfering with the regulation of specific mobile genetic elements. In Tn916, subinhibitory concentrations ofExpand
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Assessment of Damage to Nucleic Acids and Repair Machinery in Salmonella typhimurium Exposed to Chlorine
Water disinfection is usually evaluated using mandatory methods based on cell culturability. However, such methods do not consider the potential of cells to recover, which should also be kept as lowExpand
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Inter-laboratory calibration of quantitative analyses of antibiotic resistance genes
Abstract Antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARGs) are widely distributed in the environment where they represent potential public health threats. Quantitative PCRExpand
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Natural microbial communities supporting the transfer of the IncP-1β plasmid pB10 exhibit a higher initial content of plasmids from the same incompatibility group
Antibiotic resistance gene transfer mediated by plasmids is a matter of concern for public health, but permissive environments supporting plasmid dissemination are still quite difficult to identify.Expand
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Coliform culturability in over- versus undersaturated drinking waters.
The culturability of Escherichia coli in undersaturated drinking water with respect to CaCO3 (corrosive water) or in oversaturated water (non-corrosive water) was tested in different reactors: glassExpand
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