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Shao M, Zhong MC, Wang Z, Ke Z, Zhong Z, Zhou J. Non-Invasive Dynamic Reperfusion of Microvessels In Vivo Controlled by Optical Tweezers. Front Bioeng Biotechnol 2022; 10:952537. [PMID: 35910027 PMCID: PMC9331193 DOI: 10.3389/fbioe.2022.952537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 06/22/2022] [Indexed: 11/13/2022] Open
Abstract
Distributive shock is considered to be a condition of microvascular hypoperfusion, which can be fatal in severe cases. However, traditional therapeutic methods to restore the macro blood flow are difficult to accurately control the blood perfusion of microvessels, and the currently developed manipulation techniques are inevitably incompatible with biological systems. In our approach, infrared optical tweezers are used to dynamically control the microvascular reperfusion within subdermal capillaries in the pinna of mice. Furthermore, we estimate the effect of different optical trap positions on reperfusion at branch and investigate the effect of the laser power on reperfusion. The results demonstrate the ability of optical tweezers to control microvascular reperfusion. This strategy allows near-noninvasive reperfusion of the microvascular hypoperfusion in vivo. Hence, our work is expected to provide unprecedented insights into the treatment of distributive shock.
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Affiliation(s)
- Meng Shao
- Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei, China
| | - Min-Cheng Zhong
- Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei, China
- *Correspondence: Min-Cheng Zhong, ; Jinhua Zhou,
| | - Zixin Wang
- School of Biomedical Engineering, Anhui Medical University, Hefei, China
| | - Zeyu Ke
- School of Biomedical Engineering, Anhui Medical University, Hefei, China
| | - Zhensheng Zhong
- School of Biomedical Engineering, Anhui Medical University, Hefei, China
| | - Jinhua Zhou
- School of Biomedical Engineering, Anhui Medical University, Hefei, China
- *Correspondence: Min-Cheng Zhong, ; Jinhua Zhou,
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