Gold Nanowires - Assisted Prussian Blue Enhancing Peroxidase - Like Activity for the Non-enzymatic Electrochemically Sensing H2O2 Released From Living Cells

Zhang Keying; Zhang Ziqing; Zhou XiaolongZhang Na

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Gold Nanowires - Assisted Prussian Blue Enhancing Peroxidase - Like Activity for the Non-enzymatic Electrochemically Sensing H2O2 Released From Living Cells

机译：Gold Nanowires - Assisted Prussian Blue Enhancing Peroxidase - Like Activity for the Non-enzymatic Electrochemically Sensing H2O2 Released From Living Cells

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Prussian blue nanoparticles (PBNPs) have peroxidase-like activity for H2O2. However, PB alone have poor electrochemical performances. Herein, a strategy was proposed by direct in-situ growth PBNPs onto gold nanowires (AuNWs) surface to obtain the peroxidase-like activity with about 4.05 times higher than that of PBNPs alone. PBNPs@AuNWs was employed to construct a non - enzymatic electrochemical H2O2 sensor with the detection limit of 5.3x10(-9) mol/L (S/N=3). The sensor was successfully used to detect H2O2 in human serum samples or secreted from living HeLa cells. It may be a competitive candidate for H2O2 assaying in biological samples or cellular investigation.

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来源
《Electroanalysis》 |2021年第5期|1167-1174|共8页
作者
Zhang Keying; Zhang Ziqing; Zhou XiaolongZhang Na;
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作者单位

Suzhou Univ;

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原文格式 PDF
正文语种英语
中图分类电化学、电解、磁化学;
关键词
Gold nanowires; Prussian blue; Hydrogen peroxide; Electrochemical sensor; Living cell;

Gold Nanowires - Assisted Prussian Blue Enhancing Peroxidase - Like Activity for the Non-enzymatic Electrochemically Sensing H2O2 Released From Living Cells

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