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- Title
Real-time Monitoring of Discrete Synaptic Release Events and Excitatory Potentials within Self-reconstructed Neuromuscular Junctions.
- Authors
Li, Yu-Tao; Zhang, Shu-Hui; Wang, Xue-Ying; Zhang, Xin-Wei; Oleinick, Alexander I.; Svir, Irina; Amatore, Christian; Huang, Wei-Hua
- Abstract
Chemical synaptic transmission is central to the brain functions. In this regard, real-time monitoring of chemical synaptic transmission during neuronal communication remains a great challenge. In this work, in vivo-like oriented neural networks between superior cervical ganglion (SCG) neurons and their effector smooth muscle cells (SMC) were assembled in a microfluidic device. This allowed amperometric detection of individual neurotransmitter release events inside functional SCG-SMC synapse with carbon fiber nanoelectrodes as well as recording of postsynaptic potential using glass nanopipette electrodes. The high vesicular release activities essentially involved complex events arising from flickering fusion pores as quantitatively established based on simulations. This work allowed for the first time monitoring in situ chemical synaptic transmission under conditions close to those found in vivo, which may yield important and new insights into the nature of neuronal communications.
- Subjects
MICROFLUIDIC devices; NEURAL transmission; NANOSENSORS; MYONEURAL junction; POSTSYNAPTIC potential; REAL-time computing
- Publication
Angewandte Chemie, 2015, Vol 127, Issue 32, p9445
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201503801