Citation: QI Camaoji, SHA Zheng-Yue, LI Xian-Chan. Electrochemical Analysis of Single Neuronal Vesicles[J]. Chinese Journal of Analytical Chemistry, ;2019, 47(10): 1502-1511. doi: 10.19756/j.issn.0253-3820.191443
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Brain science has attracted more and more attention in the world recently. The storage, release and their function of chemical transmitters are important in neural biology. As the main subcellular organelle for chemical transmitter storage and release, nerve vesicles have attracted much attention. Compared with common vesicle analysis techniques, electroanalytical chemistry has advantages in the analysis of single nerve vesicle due to its high time resolution and sensitivity, especially the use of micro and nano electrodes. In recent years, vesicle impact electrochemical cytometry (VIEC) and resistive-pulse method have been applied rapidly in the field of single vesicles analysis. VIEC can be used to quantitate the storage of neurotransmitters in single vesicles by breaking the vesicle membrane on the electrode surface through electroporation. Resistive-pulse method can be used to measure the size, surface charge, and other parameters or characteristics of vesicles by monitoring the changes of ion current caused by single vesicles passing through micro/nanopores. Focusing on the electro-analysis of single nerve vesicles, this paper mainly introduces the important progress of VIEC and resistive-pulse method in the field of single vesicles analysis in recent years, and has a briefly outlook of the application of these two methods in life analytical chemistry including neuro-analytical chemistry and biomedicine.
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