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2 results on '"Yingchun Ni"'

1. Vesicular release of glutamate mediates bidirectional signaling between astrocytes and neurons

Author

Yingchun Ni, Erik B. Malarkey, and Vladimir Parpura

Subjects
Neurons, Central nervous system, Glutamate receptor, Glutamic Acid, food and beverages, Neurotransmission, Biology, Biochemistry, Cellular and Molecular Neuroscience, chemistry.chemical_compound, medicine.anatomical_structure, chemistry, Astrocytes, Tripartite synapse, medicine, Animals, Humans, Neuroglia, Synaptic Vesicles, Neurotransmitter, Neuroscience, Intracellular, Signal Transduction, Astrocyte
Abstract

The major excitatory neurotransmitter in the CNS, glutamate, can be released exocytotically by neurons and astrocytes. Glutamate released from neurons can affect adjacent astrocytes by changing their intracellular Ca(2+) dynamics and, vice versa, glutamate released from astrocytes can cause a variety of responses in neurons such as: an elevation of [Ca(2+)](i), a slow inward current, an increase of excitability, modulation of synaptic transmission, synchronization of synaptic events, or some combination of these. This astrocyte-neuron signaling pathway might be a widespread phenomenon throughout the brain with astrocytes possessing the means to be active participants in many functions of the CNS. Thus, it appears that the vesicular release of glutamate can serve as a common denominator for two of the major cellular components of the CNS, astrocytes and neurons, in brain function.

Published
2007
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2. Energy Saving and Energy Generation Smart Window with Active Control and Antifreezing Functions

Author

Yingchun Niu, Yang Zhou, Daxue Du, Xiangcheng Ouyang, Ziji Yang, Wenjie Lan, Fan Fan, Sisi Zhao, Yinping Liu, Siyuan Chen, Jiapeng Li, and Quan Xu

Subjects
active control, anti‐freezing, energy storage, energy‐saving, smart window, Science
Abstract

Abstract Windows are the least energy efficient part of the buildings, as building accounts for 40% of global energy consumption. Traditional smart windows can only regulate solar transmission, while all the solar energy on the window is wasted. Here, for the first time, the authors demonstrate an energy saving and energy generation integrated smart window (ESEG smart window) in a simple way by combining louver structure solar cell, thermotropic hydrogel, and indium tin oxides (ITO) glass. The ESEG smart window can achieve excellent optical properties with ≈90% luminous transmission and ≈54% solar modulation, which endows excellent energy saving performance. The outstanding photoelectric conversion efficiency (18.24%) of silicon solar cells with louver structure gives the smart window excellent energy generation ability, which is more than 100% higher than previously reported energy generation smart window. In addition, the solar cell can provide electricity to for ITO glass to turn the transmittance of hydrogel actively, as well as the effect of antifreezing. This work offers an insight into the design and preparation together with a disruptive strategy of easy fabrication, good uniformity, and scalability, which opens a new avenue to realize energy storage, energy saving, active control, and antifreezing integration in one device.

Published
2022
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