Micrometer-scale transient ion transport for real-time pH assay in living rat brains.
Micrometer-scale transient ion transport for real-time pH assay in living rat brains.
复制标题
用于活体大鼠大脑中实时 pH 测定的微米级瞬态离子传输。
DOI:
10.1039/d1sc00061f
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发表时间:
2021-04-19
期刊:
影响因子:
8.4
通讯作者:
Mao L
中科院分区:
文献类型:
--
作者:
Zhang K;Wei H;Xiong T;Jiang Y;Ma W;Wu F;Yu P;Mao L
Ion transport has been widely used for various applications such as sensing, desalination and energy conversion; however, nearly all applications are based on steady-state ion transport. Herein, we for the first time demonstrate the capability of transient ion transport for in vivo sensing with both high spatial (∼μm) and temporal (∼ms) resolution by using pH as the model target. Transient ion transport behavior (i.e., time-dependent ion current change) was observed by applying high-frequency pulse potential. Importantly, we proposed the ion distribution transient model for this time-dependent ion transport behavior. With this model, the temporal resolution of the as-developed pH microsensor based on ion current was improved to the ms level, thus satisfying the requirement of neurochemical recording. Moreover, our microsensor features good reproducibility, selectivity, and reversibility, and can thus real-time monitor the pH change in living rat brains. This study demonstrates the first example of in vivo sensing based on ion transport, opening a new way to neurochemical monitoring with ultrahigh spatiotemporal resolution. This study is also helpful to understand the transient process of asymmetric ion transport. Micrometer-scale transient ion transport has been successfully used for constructing a high spatiotemporal resolution and performance microsensor, which could be used for real-time monitoring the change of pH in rat brains.
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DOI:
10.1039/b807563h
发表时间:
2009-01
期刊:
The Analyst
影响因子:
--
作者:
Huffman ML;Venton BJ
通讯作者:
Venton BJ
影响因子:
2.1
作者:
Janssen, Dimitri;De Palma, Randy;Dehaen, Wim
通讯作者:
Dehaen, Wim
影响因子:
7.4
作者:
Lan, Wen-Jie;Holden, Deric A.;White, Henry S.
通讯作者:
White, Henry S.
影响因子:
16.6
作者:
Liu, Xiaomeng;Xiao, Tongfang;Mao, Lanqun
通讯作者:
Mao, Lanqun
影响因子:
3.9
作者:
Özel RE;Lohith A;Mak WH;Pourmand N
通讯作者:
Pourmand N