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Hedi Ben Mansour et al.
Environmental science and pollution research international, 18(9), 1527-1535 (2011-05-11)
Acid orange 52 (AO52), extensively used in textile industries, was decolorized by Pseudomonas putida mt-2. AO52 azoreduction products such as N,N'-dimethyl-p-phenylenediamine (DMPD) and 4-aminobenzenesulfonic acid (4-ABS), were identified in the static degradation mixture. These amines were identified only in media
Han Ming Gan et al.
FEMS microbiology letters, 318(2), 108-114 (2011-02-18)
Genes involved in the 4-aminobenzenesulfonate (4-ABS) degradation pathway of Hydrogenophaga sp. PBC were identified using transposon mutagenesis. The screening of 10,000 mutants for incomplete 4-ABS biotransformation identified four mutants with single transposon insertion. Genes with insertions that impaired the ability
Yan-Qing Wang et al.
Huan jing ke xue= Huanjing kexue, 30(7), 2136-2141 (2009-09-25)
Kinetics of 4-aminobensenesulphonate (4-ABS) degradation by Pannonibacter sp. W1 under aerobic condition was studied. At medium and low initial concentration (50-1000 mg/L), the 4-ABS could be degraded almost completely in 14 h,and the degradation reaction conformed to one order kinetics.
Han Ming Gan et al.
Chemosphere, 82(4), 507-513 (2010-11-26)
A co-culture consisting of Hydrogenophaga sp. PBC and Ralstonia sp. PBA, isolated from textile wastewater treatment plant could tolerate up to 100 mM 4-aminobenzenesulfonate (4-ABS) and utilize it as sole carbon, nitrogen and sulfur source under aerobic condition. The biodegradation
Han Ming Gan et al.
Microbiology (Reading, England), 158(Pt 8), 1933-1941 (2012-05-23)
The gene coding for the oxygenase component, sadA, of 4-aminobenzenesulfonate (4-ABS) 3,4-dioxygenase in Hydrogenophaga sp. PBC was previously identified via transposon mutagenesis. Expression of wild-type sadA in trans restored the ability of the sadA mutant to grow on 4-ABS. The
Kwan Kim et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 100, 10-14 (2012-02-14)
We estimated the apparent size of the 'hot site' for surface-enhanced Raman scattering (SERS) located within the gaps between Pt nanoparticles and a flat Ag substrate. Initially, no Raman peaks were detected for 4-aminobenzenethiol (4-ABT) on a flat Ag substrate.
Jinsong Zhang et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 63(11), 2752-2758 (2011-11-05)
4-Aminobenzenesulfonate (4-ABS), an aromatic amine and recalcitrant toxic pollutant, is widely used in the dye and pharmaceutical industry. Pannonibactersp. W1 is a specialized microbial strain which can efficiently degrade 4-ABS. This study shows the feasibility of using the specialized strain
Yadong Sun et al.
Organic letters, 15(7), 1598-1601 (2013-03-19)
An efficient and convenient method was developed for the formation of 2-substituted benzothiazoles via a copper-catalyzed condensation of 2-aminobenzenethiols with nitriles. The developed method is applicable to a wide range of nitriles containing different functional groups furnishing excellent yields of
Han Ming Gan et al.
Journal of bacteriology, 194(17), 4759-4760 (2012-08-14)
Hydrogenophaga sp. strain PBC is an effective degrader of 4-aminobenzenesulfonate isolated from textile wastewater. Here we present the assembly and annotation of its genome, which may provide further insights into its metabolic potential. This is the first announcement of the
Hedi Ben Mansour et al.
Drug and chemical toxicology, 32(3), 222-229 (2009-06-23)
Acid yellow 17 (AY17), a very important commercial azo dye used in the textile industry, was degraded by Pseudomonas putida mt-2 at a concentration of up to 200 mg/L. High-performance liquid chromatography analysis of the biodegradation media revealed the presence
Kwan Kim et al.
The Journal of chemical physics, 135(12), 124705-124705 (2011-10-07)
A nanogap formed by a metal nanoparticle and a flat metal substrate is one kind of "hot site" for surface-enhanced Raman scattering (SERS). Accordingly, although no Raman signal is observable when 4-aminobenzenethiol (4-ABT), for instance, is self-assembled on a flat
Abdellatif El-Ghenymy et al.
Chemosphere, 87(10), 1126-1133 (2012-03-01)
The anodic oxidation of sulfanilic acid solutions has been studied in acidic medium using a divided cell with a boron-doped diamond (BDD) anode and a stainless steel cathode. Overall mineralization was achieved under all experimental conditions tested due to the
Prashant Barsing et al.
Bioresource technology, 102(2), 765-771 (2010-09-25)
A novel bacterial consortium (TJ-2) for mineralization of aromatic amines resulting from decolorization of azo dyes was developed. Three bacterial strains were identified as Pseudomonas pseudoalcaligenes (TJ-21,EU072476), Pseudomonas citronellolis (TJ-22,EU072477) and Pseudomonas testosterone (TJ-23,EU072477) by 16S rRNA gene sequence analysis.
Nam-Jung Kim et al.
Chemical communications (Cambridge, England), (41)(41), 6246-6248 (2009-10-15)
An elusive chemical contribution to SERS is investigated by estimating the chemical coupling strengths through a dynamic relative peak analysis during solvent evaporation from a diluted chemical sample that is drop-deposited on a soft SERS substrate.
Brian D Piorek et al.
Proceedings of the National Academy of Sciences of the United States of America, 104(48), 18898-18901 (2007-11-21)
We present a microfluidic technique for sensitive, real-time, optimized detection of airborne water-soluble molecules by surface-enhanced Raman spectroscopy (SERS). The method is based on a free-surface fluidic device in which a pressure-driven liquid microchannel flow is constrained by surface tension.
Nam Hoon Kim et al.
Nano letters, 10(10), 4181-4185 (2010-09-25)
A bifunctional adenosine-sensitive double-stranded DNA aptamer was used to create and control a surface-enhanced Raman spectroscopy (SERS) hot spot between a bulk Au surface and a gold nanoparticle (Au NP) attached to the aptamer via a biotin-avidin linkage. The Au
Reversible tuning of SERS hot spots with aptamers.
Nam Hoon Kim et al.
Advanced materials (Deerfield Beach, Fla.), 23(36), 4152-4156 (2011-08-09)
Jinghua Chen et al.
Analytical chemistry, 80(21), 8028-8034 (2008-09-26)
In this study, an electrochemical DNA biosensor was developed for detection of the breakpoint cluster region gene and the cellular abl (BCR/ABL) fusion gene in chronic myelogenous leukemia by using 18-mer locked, nucleic acid-modified, single-stranded DNA as the capture probe.
Han Ming Gan et al.
Journal of bacteriology, 194(18), 5139-5140 (2012-08-31)
Ralstonia sp. strain PBA was isolated from textile wastewater in a coculture with Hydrogenophaga sp. strain PBC. Here we present the assembly and annotation of its genome, which may provide further insights into the mechanism of its interaction with strain
Ke-Jing Huang et al.
Colloids and surfaces. B, Biointerfaces, 61(2), 176-181 (2007-09-18)
A chemically modified electrode is constructed based on the multi-walled carbon nanotubes (MWNTs)/4-aminobenzeresulfonic acid (4-ABSA) film-coated glassy carbon electrode. The electrocatalytic oxidation of tyrosine (Tyr) is investigated on the surface of the MWNTs/4-ABSA-modified electrode using cyclic voltammetry (CV) and differential
Yan-Qing Wang et al.
Huan jing ke xue= Huanjing kexue, 30(4), 1193-1198 (2009-06-24)
A 4-aminobenzenesulphonate-degrading strain W1 was isolated from the activated sludge of Dalian municipal wastewater treatment plant. Strain W1 was able to utilize 4-ABS as sole carbon and energy source under aerobic condition. It was identified as Pannonibacter sp. according to
Poonam Singh et al.
Biodegradation, 17(6), 495-502 (2006-02-18)
A bacterial strain, PNS-1, isolated from activated sludge, could utilize sulphanilic acid (4-ABS) as the sole organic carbon and energy source under aerobic conditions. Determination and comparison of 16S r DNA sequences showed that the strain PNS-1 is closely related
Yan-Qing Wang et al.
Journal of hazardous materials, 169(1-3), 1163-1167 (2009-05-09)
4-Aminobenzenesulfonate (4-ABS) is a representative intermediate of some sulfonated azo dyes. A novel Pannonibacter sp. strain W1 capable of degrading 4-ABS as sole carbon as well as energy, nitrogen and sulfur source was isolated and identified from the activated sludge
Kwan Kim et al.
The journal of physical chemistry. B, 109(40), 18929-18934 (2006-07-21)
Raman scattering measurements were conducted for 4-aminobenzenethiol (4-ABT) assembled on powdered copper substrates. Initially, very weak Raman peaks were detected, but upon attaching Ag nanoparticles probably via NH2 groups onto 4-ABT/Cu, distinct Raman spectra were observed. Considering the fact that
Kwan Kim et al.
Langmuir : the ACS journal of surfaces and colloids, 27(8), 4526-4531 (2011-03-17)
4-Aminobenzenthiol (4-ABT) is an unusual molecule, showing variable surface-enhanced Raman scattering (SERS) spectra depending upon measurement conditions. In an effort to reduce ambiguity and add clarity, we have thus conducted an ultraviolet-visible (UV-vis) extinction measurement, along with Raman scattering measurement
Yunfeng Liao et al.
Organic letters, 14(23), 6004-6007 (2012-11-16)
2-Aryl benzothiazole formation from aryl ketones and 2-aminobenzenethiols under metal- and I(2)-free conditions was described. Various 2-aryl benzothiazoles were selectively obtained in good yields using molecular oxygen as oxidant. DMSO played an important role in this transformation. Functional groups such
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