Controlled amine functionalization on conducting polypyrrole nanotubes as effective transducers for volatile acetic acid
Controlled amine functionalization on conducting polypyrrole nanotubes as effective transducers for volatile acetic acid
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DOI：
10.1021/bm0608885
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发表时间：
2007-01-01
影响因子：
6.2
通讯作者：
Jang, Jyongsik
中科院分区：
文献类型：
--
作者：
Ko, Sungrok;Jang, Jyongsik
利用模板气相沉积聚合法成功制备了羧基化和胺化聚吡咯纳米管。特别是，胺化聚吡咯纳米管很容易通过用开放的多胺链修饰纳米管表面来合成。原始的和胺化的聚合物纳米管被用作乙酸蒸气的换能器。氨基官能化的纳米管显示更多的增强灵敏度比原始的羧基化的纳米管与胺间隔的数量增加，由于增加的聚合物/分析物的分配系数和质量吸收的分析物。此外，聚胺官能化的纳米管呈现出可逆的和可再现的响应，乙酸高达40%的灵敏度。胺化聚吡咯纳米管表现出潜在的能力，是优秀的传感器的挥发性脂肪酸在一次性传感器。
Pristine (carboxylated) and aminated polypyrrole nanotubes were successfully fabricated using vapor deposition polymerization with a template. In particular, aminated polypyrrole nanotubes were readily synthesized by modifying the nanotube surface with open polyamine chains. Pristine and aminated polymer nanotubes were used as the transducer to acetic acid vapor. Amino-functionalized nanotubes revealed more enhanced sensitivity than the pristine carboxylated nanotubes with the increasing number of amine spacers due to the increased polymer/analyte partition coefficient and mass uptake of the analyte. Moreover, polyamine-functionalized nanotubes presented a reversible and reproducible response to acetic acid up to 40% sensitivity. The aminated polypyrrole nanotubes demonstrated the potential capability to be excellent transducers for volatile fatty acids in disposable sensors.