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Photoactivation and conformational gating for manganese binding and oxidation in bacterial reaction centers

Author(s): Samaei A; Deshmukh SS; Protheroe C; Nyéki S; Tremblay-Ethier RA; Kálmán L;

The influence of illumination history of native bacterial reaction centers (BRCs) on the ability of binding and photo-induced oxidation of manganous ions was investigated in the pH range between 8.0 and 9.4. Binding of manganous ions to a buried site requir ...

Article GUID: 36216075


Te(IV) bioreduction in the sulfur autotrophic reactor: Performance, kinetics and synergistic mechanism

Author(s): He Y; Guo J; Song Y; Chen Z; Lu C; Han Y; Li H; Hou Y;

A laboratory-scale sulfur autotrophic reactor (SAR) was first constructed for treating tellurite [Te(IV)] wastewater. The SAR had excellent Te(IV) bioreduction efficiency (90-96%) at 5-30 mg/L and conformed to the First-order kinetic model. The Te(IV) biore ...

Article GUID: 35228038


Bioinspired facilitation of intrinsically conductive polymers: Mediating intra/extracellular electron transfer and microbial metabolism in denitrification

Author(s): Guo T; Lu C; Chen Z; Song Y; Li H; Han Y; Hou Y; Zhong Y; Guo J;

Intrinsically conductive polymers, polyaniline and polyaniline sulfonate (PASAni) were used to explore their effect on denitrification. Denitrification was accelerated 1.90 times by 2 mM PASAni and the possible mechanisms were mainly attributed to the accel ...

Article GUID: 35124084


Multifaceted synergistic electron transfer mechanism for enhancing denitrification by clay minerals

Author(s): Zhang Y; Lu C; Chen Z; Song Y; Li H; Han Y; Hou Y; Guo J;

The performance and mechanism of denitrification enhanced by three clay minerals, montmorillonite (Mmt), illite and kaolinite, were first studied. Batch experiments indicated that clay minerals significantly enhanced denitrification at certain concentration ...

Article GUID: 34915014


Acceleration mechanism of bioavailable Fe(Ⅲ) on Te(IV) bioreduction of Shewanella oneidensis MR-1: Promotion of electron generation, electron transfer and energy level.

Author(s): He Y, Guo J, Song Y, Chen Z, Lu C, Han Y, Li H, Hou Y, Zhao R

The release of highly toxic tellurite into the aquatic environment poses significant environmental risks. The acceleration mechanism and tellurium nanorods (TeNPs) characteristics with bioavailable ferric citrate (Fe(III)) were investigated in the tellurite ...

Article GUID: 32853890


Tuning the redox potential of the primary electron donor in bacterial reaction centers by manganese binding and light-induced structural changes.

Author(s): Deshmukh SS, Kálmán L

Biochim Biophys Acta Bioenerg. 2020 Aug 07;:148285 Authors: Deshmukh SS, Kálmán L

Article GUID: 32777306


Bound detergent molecules in bacterial reaction centers facilitate detection of tetryl explosive.

Author(s): Modafferi D, Zazubovich V, Kálmán L

Photosynth Res. 2020 Jul 06;: Authors: Modafferi D, Zazubovich V, Kálmán L

Article GUID: 32632533


Effect and ameliorative mechanisms of polyoxometalates on the denitrification under sulfonamide antibiotics stress.

Author(s): Guo H, Chen Z, Lu C, Guo J, Li H, Song Y, Han Y, Hou Y

Bioresour Technol. 2020 Feb 22;305:123073 Authors: Guo H, Chen Z, Lu C, Guo J, Li H, Song Y, Han Y, Hou Y

Article GUID: 32145698


Enhanced denitrification performance and biocatalysis mechanisms of polyoxometalates as environmentally-friendly inorganic redox mediators.

Author(s): Guo H, Chen Z, Guo J, Lu C, Song Y, Han Y, Li H, Hou Y

Bioresour Technol. 2019 Jul 16;291:121816 Authors: Guo H, Chen Z, Guo J, Lu C, Song Y, Han Y, Li H, Hou Y

Article GUID: 31344631


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