A5086712044- Enzyme-mediated dye degradation
- Microbial bioremediation and biosurfactants
- Microbial Metabolism and Applications
- Biochemical and Molecular Research
- Pesticide and Herbicide Environmental Studies
- Biochemical and biochemical processes
- Microbial Metabolic Engineering and Bioproduction
- Ubiquitin and proteasome pathways
- Fungal Biology and Applications
- Peptidase Inhibition and Analysis
- Toxic Organic Pollutants Impact
- Chromium effects and bioremediation
- Enzyme Structure and Function
- Amino Acid Enzymes and Metabolism
- Electrochemical sensors and biosensors
- Vanadium and Halogenation Chemistry
- Environmental Toxicology and Ecotoxicology
- Enzyme Catalysis and Immobilization
- Adenosine and Purinergic Signaling
- Advanced oxidation water treatment
- DNA and Nucleic Acid Chemistry
- Chronic Lymphocytic Leukemia Research
- Electrochemical Analysis and Applications
- Yeasts and Rust Fungi Studies
- Advanced biosensing and bioanalysis techniques
Rutgers, The State University of New Jersey
2025
University of Maryland, Baltimore
2014
Meridian Institute
2011
University of Alberta
1996-2008
Universidad Nacional Autónoma de México
1999
Dana-Farber Cancer Institute
1998
University of Liverpool
1968-1995
Glasgow Victoria Infirmary
1985
ABSTRACT We studied the metabolism of polycyclic aromatic hydrocarbons (PAHs) by using white rot fungi previously identified as organisms that metabolize polychlorinated biphenyls. Bran flakes medium, which has been shown to support production high levels laccase and manganese peroxidase, was used growth medium. Ten grown for 5 days in this medium presence anthracene, pyrene, or phenanthrene, each at a concentration μg/ml could these PAHs. oxidation 10 PAHs purified from Coriolopsis gallica...
Background and objectives Relative to hemoglobin (Hb) A1c, glycated albumin (GA) more accurately reflects glycemic control in patients with diabetes mellitus ESRD. We determined the association between GA, HbA1c, glucose levels survival hospitalizations diabetic dialysis patients. Design, setting, participants, & measurements Quarterly GA were measured for up 2.33 years 444 prevalent Proportional hazard time-dependent covariate models computed adjustment demographic characteristics,...
It has been proposed that addition of surfactants to contaminated soil enhances the solubility target compounds; however, may simultaneously reduce adhesion bacteria hydrophobic surfaces. If latter mechanism is important for biodegradation virtually insoluble contaminants, then use not be beneficial. The a Mycobacterium strain and Pseudomonas strain, isolated from creosote-contaminated soil, surfaces highly viscous non-aqueous-phase liquids (NAPLs) was measured. NAPLs were organic material...
ABSTRACT The mechanism of transport polycyclic aromatic hydrocarbons (PAHs) by Pseudomonas fluorescens LP6a, a PAH-degrading bacterium, was studied inhibiting membrane and measuring the resulting change in cellular uptake. Three cultures were used: wild-type LP6a which carried plasmid for PAH degradation, transposon mutant lacking first enzyme pathway cured strain without plasmid. Washed cells mixed with aqueous solutions radiolabelled PAH; then removed centrifugation, concentrations...
The interactions of anthracene with three soils and montmorillonite clay were studied as a function time moisture content. Selected experiments also used phenanthrene pyrene. contained range organic matter, from 0.6 to 4.4%, all had high Anthracene was loaded onto the by dissolving in methylene chloride then soaking soil 30 min 17 d. After removing chloride, extracted see how much contaminant recoverable. Up 100% pyrene not extractable soil, up 25% extractable. Experiments [14C]anthracene...
The ability of a carbon dioxide laser to sterilize the root canal human teeth has been investigated. Three oral bacteria, Streptococcus sanguis, mutans, and Actinomyces viscosus, three other Bacillus cereus, Staphyloccus aureus, Pseudomonas aeruginosa were used as experimental organisms. Exposure cells on glass slides radiation showed there was little difference in exposure required kill these six Complete recovery bacteria from initially problem only achieved when bacterial manipulations...
Abstract Background Food insecurity has been associated with sexual risk behavior that increases Human Immunodeficiency Virus (HIV) in cis women and gender minority (SGM) individuals such as transactional sex for money or food multiple partners. SGM people experiencing insecure immigration status also often face financial housing instability, stigma, discrimination, lack of social support well insecurity. North Jersey Community Research Initiative (NJCRI) is a non- profit organization...
ABSTRACT Two methods were used to compare the biodegradation of six polychlorinated biphenyl (PCB) congeners by 12 white rot fungi. Four fungi found be more active than Phanerochaete chrysosporium ATCC 24725. Biodegradation following was monitored gas chromatography: 2,3-dichlorobiphenyl, 4,4′-dichlorobiphenyl, 2,4′,5-trichlorobiphenyl (2,4′,5-TCB), 2,2′,4,4′-tetrachlorobiphenyl, 2,2′,5,5′-tetrachlorobiphenyl, and 2,2′,4,4′,5,5′-hexachlorobiphenyl. The congener tested for mineralization...
4-Nitrobenzylthioinosine (NBMPR), a potent nucleoside transport inhibitor, was prepared in two radioactive forms and the binding of these to erythrocyte ghosts studied. Similar data were obtained with inhibitor containing 14 C purine 8-position or benzyl 7-position, suggesting that entire molecule bound. A saturable high-affinity mode NBMPR apparent; bound this way not removed by washing, but displaced related transport, 2-hydroxy-5-nitrobenzylthioguanosine (HNBTGR). It is postulated sites...
Strains of Escherichia coli carrying R-factor R71(a), which codes for a streptomycin-spectinomycin adenylyltransferase, have elevated levels resistance to dihydrostreptomycin (DHS) compared with isogenic R − bacteria. DHS accumulated by whole cells and spheroplasts + bacteria is lower than that observed strains, result the absence second more rapid two energy-dependent phases uptake seen in susceptible E. . A mutant reduced has been shown adenylyltransferase activity as well enhanced drug...
We studied polycyclic aromatic hydrocarbon (PAH) oxidation using whole cells and purified manganese-lignin peroxidase (MnLiP) from Bjerkandera adusta UAMH 8258. Although the metabolism of PAHs by B. has been previously demonstrated, less than 5% mineralization 14 C-labelled occurred in this study over a 40-day period. Oxidation was examined MnLiP hybrid isoenzyme presence absence manganous ions. The rate PAH decreased Mn. substrates were anthracene its methyl derivatives, pyrene...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of 3-fluorodiaminopimelic acid isomers as inhibitors diaminopimelate epimerase: stereocontrolled enzymatic elimination hydrogen fluorideMichael H. Gelb, Yukang Lin, Michael A. Pickard, Yonghong Song, and John C. VederasCite this: J. Am. Chem. Soc. 1990, 112, 12, 4932–4942Publication Date (Print):June 1, 1990Publication History Published online1 May 2002Published inissue 1 June...
Chloroperoxidase (CPO) purified from Caldariomyces fumago CMI 89362 was covalently bound to aminopropyl-glass by using a modification of an established method. Acid-washed glass derivatized aminopropyltriethoxysilane, and the enzyme ionically at low ionic strength. Further treatment with glutaraldehyde linked beads in active form. No elution activity could be detected variety washings. The loading protein highest, 100 mg CPO per g glass, high reaction ratios but specific immobilized 36%...
Ten strains of Caldariomyces fumago and related fungi were found to produce extracellular chloroperoxidase when grown on a glucose – malt extract medium. High enzyme levels pigment production observed for C. ATCC 16373 CMI 89362. Removal from the medium replacement by fructose as carbon source provided defined which, comparison with complex medium, produced following results both fungal strains. Chloroperoxidase was similar levels, maximum after 6 days rather than 12 growth; pigmentation...
White rot fungi from the University of Alberta Mold Herbarium, identified as able to degrade aromatics a study PCB metabolism, were examined for production ligninolytic enzymes. Production lignin peroxidase, manganese laccase, and veratryl alcohol oxidase monitored during growth in different media. Good but low enzyme occurred glucose - malt extract yeast medium. Media containing 2% cereal bran 60 mM phosphate buffer supported high levels laccase production, up 13 000 U/L Coriolopsis gallica...
Abstract Although relatively high CO 2 laser energies have been shown to sterilize root canals, the response of several bacterial strains decreasing exposures energy remains unknown. Freshly grown cells were irradiated on glass microscope coverslips. A comparison equivalent with differing parameters was made viability. No statistically significant difference found in required kill closely related species. However, density greater than 99.5% bacteria is less 200 J/cm , much that a previous study.
ABSTRACT Microbial metabolism of organosulfur compounds is interest in the petroleum industry for in-field viscosity reduction and desulfurization. Here, dibenzyl sulfide (DBS) white rot fungi was studied. Trametes trogii UAMH 8156, hirsuta 8165, Phanerochaete chrysosporium ATCC 24725, versicolor IFO 30340 (formerly Coriolus sp.), Tyromyces palustris 30339 all oxidized DBS to sulfoxide prior oxidation sulfone. The cytochrome P-450 inhibitor 1-aminobenzotriazole eliminated oxidation. Laccase...