期刊
CURRENT OPINION IN ELECTROCHEMISTRY
卷 29, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.coelec.2021.100746
关键词
Carbon fiber microelectrode; Dopamine; Brain; Exocytosis; Biosensor
资金
- Inserm [U1028]
- CNRS [UMR 5292]
- Fondation Les Gueules Cassees (Union des blesses de la face et de la tete) [FGC57-2020, FGC34-2018]
- Universite Claude Bernard Lyon I
Chemical transmission between neurosecretory cells is a central biological phenomenon that can be studied using electrochemical techniques. Carbon fiber microelectrodes are commonly used to detect neurotransmitters and can be modified for specific and sensitive in situ neurotransmitter detection, making them an essential tool for analyzing living cells and tissues.
Chemical transmission between neurosecretory cells is a central biological phenomenon. Detecting neurotransmitter molecules released in the brain or in cell cultures is key to understanding how, when, and where chemical transmission occurs. Electrochemical techniques provide a unique quantitative approach to this field of research. Micro- and nanoelectrodes can be engineered to be implanted in the living brain for interstitial fluid analysis, or placed close to, or even inside, isolated cells to detect exocytosis events and vesicles. Carbon fiber microelectrodes provide a common basis for detecting not only dopamine but also a wide variety of neurotransmitters ranging from biogenic amines, purines, and amino acids to free radicals and peptides. To achieve specific and sensitive in situ neurotransmitter detection, carbon fiber microelectrodes can be chemically modified with nanomaterials, enzymes, or aptamers or etched to reach nanoscale dimensions for intracellular analysis. Such micro- and nanoelectrodes are an essential tool for analyzing living cells and tissues.
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