Recognizing single phospholipid vesicle collisions on carbon fiber nanoelectrode
Zhang, YY; Li, M; Li, ZH; Li, Q; Aldalbahi, A; Shi, JY; Wang, LH; Fan, CH; Zuo, XL
2017
发表期刊SCIENCE CHINA-CHEMISTRY
ISSN1674-7291
卷号60期号:11页码:1474-1480
文章类型期刊论文
摘要We recognize the stochastic collisions of dopamine contained phospholipid vesicle on carbon fiber nanoelectrode, extending the observation of discrete collision events on nanoelectrode to biologically relevant analytes. To decrease noise interference to the technique, the dimensions of nanoelectrode was systematically investigated and optimized. Scanning electron microscopy (SEM) further supported the comparable sizes of nanoelectrode and vesicles (similar to 100 nm in diameter). Vesicles collision and rupture on the surface of nanoelectrode led to the dopamine release from vesicles, which could be electrochemically oxidized to dopamine-o-quinone and detected via voltammetry. The comparable size of the nanoelectrode with vesicles and fast voltammetry allowed differentiation of single collision events from the current magnitudes and peak widths in the electrochemical collision experiments, which shows the efficacy of the method to characterize vesicle samples. This work provides a foundation upon which quantitative sensor technology might be built for the detection of dopamine contained vesicles with high spatial and temporal resolution.
关键词Electrochemical Detection Dna-nanostructure Dopamine Release Cells Amperometry Exocytosis Events Ultramicroelectrode Microelectrodes Transmitters
DOI10.1007/s11426-017-9036-0
关键词[WOS]ELECTROCHEMICAL DETECTION ; DNA-NANOSTRUCTURE ; DOPAMINE RELEASE ; CELLS ; AMPEROMETRY ; EXOCYTOSIS ; EVENTS ; ULTRAMICROELECTRODE ; MICROELECTRODES ; TRANSMITTERS
收录类别SCI
语种英语
WOS记录号WOS:000414378700014
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28798
专题中科院上海应用物理研究所2011-2018年
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GB/T 7714
Zhang, YY,Li, M,Li, ZH,et al. Recognizing single phospholipid vesicle collisions on carbon fiber nanoelectrode[J]. SCIENCE CHINA-CHEMISTRY,2017,60(11):1474-1480.
APA Zhang, YY.,Li, M.,Li, ZH.,Li, Q.,Aldalbahi, A.,...&Zuo, XL.(2017).Recognizing single phospholipid vesicle collisions on carbon fiber nanoelectrode.SCIENCE CHINA-CHEMISTRY,60(11),1474-1480.
MLA Zhang, YY,et al."Recognizing single phospholipid vesicle collisions on carbon fiber nanoelectrode".SCIENCE CHINA-CHEMISTRY 60.11(2017):1474-1480.
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