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S Torres-Cartas et al.
European journal of medicinal chemistry, 42(11-12), 1396-1402 (2007-05-08)
Mutagenicity is a toxicity endpoint associated with the chronic exposure to chemicals. Aromatic amines have considerable industrial and environmental importance due to their widespread use in industry and their mutagenic capacity. Biopartitioning micellar chromatography (BMC), a mode of micellar liquid
B Mao et al.
Biochemistry, 35(39), 12659-12670 (1996-10-01)
Combined NMR-molecular mechanics computational studies were undertaken on the C8-deoxyguanosine adduct formed by the carcinogen 1-nitropyrene embedded in the d(C5-[AP]G6-C7).d(G16-C17-G18) sequence context in a 11-mer duplex, with dC opposite the modified deoxyguanosine. The exchangeable and nonexchangeable protons of the aminopyrene
John C Bachman et al.
Nature communications, 6, 7040-7040 (2015-05-07)
Electrochemical energy-storage devices have the potential to be clean and efficient, but their current cost and performance limit their use in numerous transportation and stationary applications. Many organic molecules are abundant, economical and electrochemically active; if selected correctly and rationally
Li Ma et al.
Biochemistry, 57(31), 4735-4740 (2018-04-06)
It is challenging to assess protein-membrane interactions because of the lack of appropriate tools to detect position changes of single proteins in the ∼4 nm range of biological membranes. We developed an assay recently, termed surface-induced fluorescence attenuation (SIFA). It
1-Nitropyrene-metabolizing activities of fish liver preparations.
S Kitamura et al.
Bulletin of environmental contamination and toxicology, 58(3), 448-455 (1997-03-01)
Chengxi Zhu et al.
Journal of colloid and interface science, 546, 92-100 (2019-03-25)
We reported a carbon nanohorns/gold nanoparticles composites-based impedimetric aptasensor for carbendazim (CBZ) detection in lettuce and orange juice at picogram levels. The increased electron-transfer resistance, resulting from the formation of CBZ-aptamer complex, was recorded by electrochemical impedance spectroscopy as the
B Miksa et al.
Journal of biomaterials science. Polymer edition, 7(1), 77-96 (1995-01-01)
The poly(styrene/acrolein) latexes (P(SA)1 and P(SA)2), differing in poly(acrolein) content, were synthesized by the emulsifier-less emulsion-precipitation polymerization of styrene and acrolein. The fraction of poly(acrolein) in the surface layer was 0.35 and 0.50, for the P(SA)1 and P(SA)2 latex, respectively.
Man Jae Park et al.
Chemical communications (Cambridge, England), 48(89), 11008-11010 (2012-10-06)
Excess electron transfer dynamics in DNA hairpins was investigated by femtosecond laser flash photolysis of a donor-DNA-acceptor system using N,N-dimethylaminopyrene and diphenylacetylene as an electron donor and acceptor, respectively. It was revealed that the excess electron hopping rate between T's
Lun Wang et al.
Analytical and bioanalytical chemistry, 382(5), 1300-1303 (2005-05-26)
Organic fluorescence nanoparticles (1-aminopyrene nanoparticles) were prepared under ultrasonic radiation and used to determine nitrite. Such nanoparticles have a broad, continuous excitation spectrum, but they are also photochemically stable and water-soluble. Nitrite determination was based upon nitrite quenching the fluorescence
N Hatanaka et al.
Mutation research, 497(1-2), 223-233 (2001-08-30)
Metabolic activation of 1-nitropyrene (1-NP) by human cytochrome P450 (P450) family 1 enzymes co-expressed with NADPH-cytochrome P450 reductase (NPR) in Escherichia coli membranes was investigated. 1-NP induced umu gene expression in Salmonella typhimurium TA1535/pSK1002 in the absence of any P450
Maciej Mazur et al.
Bioelectrochemistry (Amsterdam, Netherlands), 66(1-2), 89-94 (2005-04-19)
We report on the covalent attachment of pyrene to quartz and indium-doped tin oxide (ITO) surfaces, and its characterization by steady-state and time-resolved emission spectroscopy. We estimate the chromophore surface coverage on the basis of their electrochemical oxidation mechanism in
P D Josephy et al.
Mutation research, 429(2), 199-208 (1999-10-20)
The mutagenic actions of many chemicals depend on the activities of bacterial "mutagenesis proteins", which allow replicative bypass of DNA lesions. Genes encoding these proteins occur on bacterial chromosomes and plasmids, often in the form of an operon (such as
B Miksa et al.
Journal of biomaterials science. Polymer edition, 7(6), 503-513 (1995-01-01)
Poly(methyl methacrylate-methacrylic acid-2-hydroxyethyl methacrylate) latex (ACRYLAT) was synthesized by radical precipitation polymerization. The mass median diameter (MMD) and the geometrical standard deviation (GSD) of the ACRYLAT particles were 138 nm and 1.2, respectively. The concentration of the titrable carboxylic groups
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