AIM To investigate whether hypoxia can induce changes in NAD(P)H: quinone oxidoreductase 1(NQO 1) activity and its effect on the cytotoxicity and DNA damage in SMMC 7721 cells induced by two bioreductive drugs 〔diaziquone, 2,5 bis(aziridinyl) 3,6 bis(carboethoxyamino) 1,4 benzoquinone, AZQ; 2,5 bis(aziridinyl) 1,4 benzoquinone,DZQ〕 and the underlying mechanism.

The factors affecting biological reduction of sulfate in TiO2 wastewater using sulfate reducing bacteria(SRB) were studied in an anaerobic sequencing batch reactor,and the operating conditions were also researched.

High-purity nano ZnS particles were synthesized using a coupling reaction of biological reduction and chemical precipitation mediated with EDTA(CRBRCP-EDTA process).

High-purity nano CdS and PbS particles were synthesized using a coupling reaction of biological reduction and chemical precipitation mediated with EDTA referred as CRBRCP-EDTA process.

Recovery of manganese from waste batteries using microbe and organic waste through bioreduction process;

Pd catalyst supported on γ-alumina(nanoparticles)with high dispersion was prepared by bioreduction with Bacillus lichenifoumis(strain R08),which was strong in reducing ability of Pd~(2+).

The transition metal catalysis reduction, hydride reagents reduction, sodium dithionite reduction and bioreduction ware discussed.

Effect of flue gas composition on NO_x removal by chemical absorptionmicrobial reduction;

Progress of NO_x removal by metal chelate absorption combined with microbial reduction

Potassium periodate spectrophotometric determination of manganese carbonate produced during the bioreduction;