Results 261 to 270 of about 3,248,027 (299)

Direct electrochemistry of cholesterol oxidase on MWCNTs

Journal of Electroanalytical Chemistry, 2011
Abstract The direct electrochemistry of cholesterol oxidase (ChOx) was achieved on the surface of graphite electrode by immobilizing positively charged ChOx and negatively charged multi walled carbon nanotubes through electrostatic interaction using layer-by-layer technique. Two sets of well defined redox peaks were observed in cyclic voltammogram of
Revanasiddappa Manjunatha, Dodahalli Hanumantharayudu Nagaraju, Gurukar Shivappa Suresh, Jose Savio Melo, Stanislaus F. D’Souza, Thimmappa Venkatarangaiah Venkatesha   +5 more
openaire   +1 more source

Direct Electrochemistry of Proteins and Enzymes

2005
Publisher Summary This chapter summarizes the achievements on direct electron transfer (DET) between redox enzymes and electrodes, with a special focus on haem and copper-containing redox enzymes. Haem enzymes involve peroxidases, catalases, cytochromes of the P450 group, and a variety of multi-cofactor complex enzymes that contain haem(s), along ...
openaire   +1 more source

Impact electrochemistry for biosensing: advances and future directions

The Analyst
This minireview summarizes the recent advancements in impact electrochemistry-based biosensing over the past two to three years and provides insights into the future directions of this field.
Jian-Hua Zhang, Dian-Mei Song, Yi-Ge Zhou   +2 more
openaire   +2 more sources

Direct electrochemistry of hemoglobin immobilized in CuO nanowire bundles

Talanta, 2010
It is one of main challenges to find the suitable materials to enhance the direct electron transfer between the electrode and redox protein for direct electrochemistry field. Nano-structured metal oxides have attracted considerable interest because of unique properties, well biocompatibility, and good stability. In this paper, the copper oxide nanowire
Yueming, Li, Qian, Zhang, Jinghong, Li
openaire   +2 more sources

Direct electrochemistry and bioelectrocatalysis of hemoglobin immobilized on carbon black

Bioelectrochemistry, 2007
It is reported for the first time that hemoglobin (Hb) was immobilized on the surface of carbon black powders modified at the surface of a glassy carbon electrode. The cyclic voltammetric results showed that the immobilized Hb could undergo a direct quasi-reversible electrochemical reaction.
Guo-Xian, Ma, Tian-Hong, Lu, Yong-Yao, Xia   +2 more
openaire   +2 more sources

Direct electrochemistry and spectroelectrochemistry of osmium substituted horseradish peroxidase

Bioelectrochemistry, 2009
In this contribution the substitution of the central protoporphyrin IX iron complex of horseradish peroxidase by the respective osmium porphyrin complex is described. The direct electrochemical reduction of the Os containing horseradish peroxidase (OsHRP) was achieved at ITO and modified glassy carbon electrodes and in combination with spectroscopy ...
Loew, Noya, Wollenberger, Ulla (Prof. Dr.), Scheller, Frieder W. (Prof. Dr.), Katterle, Martin   +3 more
openaire   +3 more sources

Reflections on Future Directions in Organometallic Electrochemistry

Organometallics, 2011
Electrochemistry is employed both as an analytical instrumental technique and as a method of inducing changes in the structure and reactivity of organometallic complexes.
openaire   +1 more source

Construction and direct electrochemistry of orientation controlled laccase electrode

Biochemical and Biophysical Research Communications, 2014
A laccase has multiple redox centres. Chemisorption of laccases on a gold electrode through a polypeptide tag introduced at the protein surface provides an isotropic orientation of laccases on the Au surface, which allows the orientation dependent study of the direct electrochemistry of laccase.
Ying, Li, Jiwei, Zhang, Xirong, Huang, Tianhong, Wang   +3 more
openaire   +2 more sources

Harnessing Electrochemistry for Direct Deoxygenative Silylation of Alcohols and Ketones

Angewandte Chemie International Edition
AbstractAlcohols and ketones are abundant and structurally diverse feedstocks, yet their direct transformation into organosilicon compounds remains challenging due to the difficulty in selective cleaving C─OH and C═O bonds. Here, we report an electrochemically driven deoxygenative C─Si bond formation strategy that converts alcohols and ketones directly
Yi‐Xian Zheng, Yuan‐Xin Wu, Li‐Jian Su, Peng Xiong, Hai‐Chao Xu   +4 more
openaire   +2 more sources

‘Direct’ Electrochemistry of Redox-active Proteins

2011
Several metalloproteins, through their ability to trigger electron-transfer processes, participate in vital functions such as photosynthesis or respiration. Since the active sites of such molecules are deeply protected by protein envelopes, detection of the electron exchange between a solid electrode and the active site is conditioned by precise ...
openaire   +1 more source