Electrochemical synthesis of Au/polyaniline–poly(4-styrenesulfonate) hybrid nanoarray for sensitive biosensor design
Electrochemical synthesis of Au/polyaniline–poly(4-styrenesulfonate) hybrid nanoarray for sensitive biosensor design
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DOI：
10.1016/j.elecom.2008.05.021
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发表时间：
2008-07
影响因子：
5.4
通讯作者：
Meining Zhang;A. Yamaguchi;Kotaro Morita;N. Teramae
中科院分区：
文献类型：
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作者：
Meining Zhang;A. Yamaguchi;Kotaro Morita;N. Teramae
制备了Au/聚苯胺（PANI）-聚对苯乙烯磺酸盐（PSS）杂化纳米阵列，用于中性水溶液中的生物分子传感。首先，使用一维Au纳米棒（直径=约100 nm）阵列。200 nm，长度=约。3μm），然后在Au纳米棒表面电聚合一层薄的PANI-PSS复合层。结果表明，Au/PANI-PSS杂化纳米阵列在约100 ℃时呈现准可逆的氧化还原电化学过程。在+0.11V和中性溶液中，还原型β-烟酰胺腺嘌呤二核苷酸（NADH）被电催化氧化，检测限为0.3μM。
Au/polyaniline (PANI)–poly(4-styrenesulfonate) (PSS) hybrid nanoarray is fabricated for biomolecular sensing in neutral aqueous solutions. Firstly, an array of one-dimensional Au nanorods (diameter=ca. 200nm, length=ca. 3μm) is formed by a template-electrodeposition method using a porous anodic alumina membrane, and then a thin PANI–PSS composite layer is electropolymerized on the surface of the Au nanorods. The resulting Au/PANI–PSS hybrid nanoarray exhibits a quasi-reversible redox electrochemical process at ca. +0.11V and electrocatalytic oxidation of reduced β-nicotinamide adenine dinucleotide (NADH) is attained with a detection limit of 0.3μM in a neutral solution.