Electrochemistry of 2′-Anthraquinone-modified Oligonucleotide Immobilized on Gold Surface: Differential Electron Transfer Efficiency between Single and Double Helical Forms

2002 ◽  
Vol 31 (5) ◽  
pp. 506-507 ◽  
Author(s):  
Kazushige Yamana ◽  
Satoshi Kumamoto ◽  
Tetsuya Hasegawa ◽  
Hidehiko Nakano ◽  
Yosohiro Sugie
Keyword(s):  
Electron Transfer ◽  
Gold Surface ◽  
Transfer Efficiency ◽  
Modified Oligonucleotide

Inhibiting guanine oxidation and enhancing the excess-electron-transfer efficiency of a pyrene-modified oligonucleotide by introducing an electron-donating group on pyrene

2019 ◽  
Vol 55 (93) ◽  
pp. 14062-14065 ◽  
Author(s):  
Takumi Okuda ◽  
Yusuke Kawashima ◽  
Yuuya Kasahara ◽  
Tatsuya Takagi ◽  
Junpei Yamamoto ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Excess Electron ◽  
Transfer Efficiency ◽  
Guanine Oxidation ◽  
Mediated Electron Transfer ◽  
Reduction Efficiency ◽  
Modified Oligonucleotide

PipPyU and OMePyU enhance the reduction efficiency without oxidizing guanine in DNA-mediated electron transfer.

scholarly journals Effect of Geobacter metallireducens nanowire on electron transfer efficiency in MFC

2021 ◽  
Author(s):  
Shunliang Liu ◽  
feng ya li ◽  
li hao ran
Keyword(s):  
Electron Transfer ◽  
Electrochemical Measurement ◽  
Inhibitory Effect ◽  
Transfer Efficiency ◽  
Maximum Output ◽  
Current Response ◽  
Electron Mediator ◽  
Geobacter Metallireducens ◽  
Culture Process ◽  
Double Chamber

Inhibitory effect of electron mediator AQDS on Geobacter metallireducens nanowire in microbial fuel cell (MFC) was studied. In the culture process of G. metallireducens with Fe(OH)3 as electron acceptor, the concentration of reduction product Fe (II) in solution without AQDS is higher than that with AQDS after 10 days, due to the formation of microbial nanowires. The effects of nanowire on electron transfer efficiency and power generation characteristic were studied using double chamber MFC reactor. The transfer efficiency between biofilm and electrodes was increased by nanowire, which increases maximum output voltage of MFC from 321 mV to 442 mV. The nanowire biofilm electrode has the bigger cyclic voltammetry curve peak, smaller activation resistance and stronger current response signal through electrochemical measurement, which indicated that the nanowire enhanced the electrochemical activity of the electrode.

Photocatalytic activity of TiO2-WO3 mixed oxides in relation to electron transfer efficiency

2016 ◽  
Vol 186 ◽  
pp. 157-165 ◽  
Author(s):  
Maria Vittoria Dozzi ◽  
Stefania Marzorati ◽  
Mariangela Longhi ◽  
Mauro Coduri ◽  
Luca Artiglia ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Photocatalytic Activity ◽  
Mixed Oxides ◽  
Transfer Efficiency

scholarly journals Photocatalytic H2 Evolution on TiO2 Assembled with Ti3C2 MXene and Metallic 1T-WS2 as Co-catalysts

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Yujie Li ◽  
Lei Ding ◽  
Shujun Yin ◽  
Zhangqian Liang ◽  
Yanjun Xue ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Surface Area ◽  
Active Site ◽  
Tungsten Disulfide ◽  
Transfer Efficiency ◽  
H2 Evolution ◽  
Co Catalysts ◽  
Efficient Separation ◽  
Photocatalytic H2 Evolution

AbstractThe biggest challenging issue in photocatalysis is efficient separation of the photoinduced carriers and the aggregation of photoexcited electrons on photocatalyst’s surface. In this paper, we report that double metallic co-catalysts Ti3C2 MXene and metallic octahedral (1T) phase tungsten disulfide (WS2) act pathways transferring photoexcited electrons in assisting the photocatalytic H2 evolution. TiO2 nanosheets were in situ grown on highly conductive Ti3C2 MXenes and 1T-WS2 nanoparticles were then uniformly distributed on TiO2@Ti3C2 composite. Thus, a distinctive 1T-WS2@TiO2@Ti3C2 composite with double metallic co-catalysts was achieved, and the content of 1T phase reaches 73%. The photocatalytic H2 evolution performance of 1T-WS2@TiO2@Ti3C2 composite with an optimized 15 wt% WS2 ratio is nearly 50 times higher than that of TiO2 nanosheets because of conductive Ti3C2 MXene and 1T-WS2 resulting in the increase of electron transfer efficiency. Besides, the 1T-WS2 on the surface of TiO2@Ti3C2 composite enhances the Brunauer–Emmett–Teller surface area and boosts the density of active site.

Photoinduced Energy vs Electron Transfer Between Fe(II) and Ru(II) Bisterpyridyl Complexes in Solution and Grafted on a Gold Surface

2013 ◽  
Vol 117 (40) ◽  
pp. 20431-20439 ◽  
Author(s):  
Sébastien Liatard ◽  
Jérôme Chauvin ◽  
Damien Jouvenot ◽  
Frédérique Loiseau ◽  
Alain Deronzier
Keyword(s):  
Electron Transfer ◽  
Gold Surface
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