新型自动化细胞涂片和激光释放系统用于近红外光响应释放有核红细胞

郭钟扬; 尤倩楠; 葛明锋; 王国伟; 梅茜; 董文飞

doi:10.37188/CO.2021-0015

Volume 14 Issue 5

Sep. 2021

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Article Contents

Chinese Optics > 2021 > 14(5): 1273-1287.

GUO Zhong-yang, YOU Qian-nan, GE Ming-feng, WANG Guo-wei, MEI Qian, DONG Wen-fei. A new automatic cell smear and laser release system for near-infrared light responsive release of nucleated red blood cells[J]. Chinese Optics, 2021, 14(5): 1273-1287. doi: 10.37188/CO.2021-0015

Citation:

GUO Zhong-yang, YOU Qian-nan, GE Ming-feng, WANG Guo-wei, MEI Qian, DONG Wen-fei. A new automatic cell smear and laser release system for near-infrared light responsive release of nucleated red blood cells[J]. Chinese Optics, 2021, 14(5): 1273-1287. doi: 10.37188/CO.2021-0015

Citation:

GUO Zhong-yang, YOU Qian-nan, GE Ming-feng, WANG Guo-wei, MEI Qian, DONG Wen-fei. A new automatic cell smear and laser release system for near-infrared light responsive release of nucleated red blood cells[J]. Chinese Optics, 2021, 14(5): 1273-1287. doi: 10.37188/CO.2021-0015

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A new automatic cell smear and laser release system for near-infrared light responsive release of nucleated red blood cells

doi: 10.37188/CO.2021-0015

GUO Zhong-yang^{1, 2
,},
YOU Qian-nan^{1, 2
,},
GE Ming-feng^2
,,
WANG Guo-wei^{1, 2
,},
MEI Qian^{2
,
,},
DONG Wen-fei^2
,

1.
School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
2.
Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou 215163, China

Funds: Supported by National Key Research and Development Program of China (No. 2017YFF0108600); National Natural Science Foundation of China (No. 81771982, No. 61535010, No. 21803075); Key Research and Development Program of Jiangsu Province (Social Development No. BE2019683); and “20 Policies on University Innovation Research” of Jinan City (No. 2018GXRC016)

More Information

Author Bio:
GUO Zhong-yang (1995—), male, born in Weifang City, Shandong Province. He is a Master degree candidate mainly engaged in the research of in-vitro diagnostic instrument design, automatic control, etc. E-mail: iszyguo@mail.ustc.edu.cn

MEI Qian (1977—), female, born in Luoyang City, Henan Province. She is a Ph.D., researcher and doctoral supervisor. She received her bachelor's and master's degrees from Southeast University in 2000 and 2003 respectively, and her doctor's degree from University of Florida in 2007. Her main research interests include the design and manufacture of microfluidic systems and their applications in biomedicine. E-mail: qmei@sibet.ac.cn
Corresponding author: qmei@sibet.ac.cn
Received Date: 18 Jan 2021
Rev Recd Date: 22 Feb 2021

Available Online: 15 May 2021

Publish Date: 18 Sep 2021

Abstract

Abstract

In order to realize the separation and release of nucleated red blood cells from peripheral blood and develop a safe and effective non-invasive technique to separate nucleated red blood cells for prenatal diagnosis of fetal diseases, an automatic cell smear preparation system based on hydrogel material was established, and a laser focusing and microscopic imaging system for recognizing and releasing nucleated red blood cells was constructed. Firstly, the mechanical structure of cell smear preparation machine was designed, the upper computer control software was designed based on single chip microcomputer, and a hydrogel membrane substrate smear was prepared by optimizing the slide-pushing angle and speed. MXene, a two-dimensional material, was introduced into temperature-sensitive hydrogel gelatin, and the near-infrared light response was realized on the surface of hydrogel membrane by using the near-infrared photothermal conversion characteristics of MXene. Then, the whole cell smear experiment was carried out on the surface of the hydrogel substrate membrane. A monolayer cell smear was prepared by optimizing the parameters of blood slide. Finally, the optical path of laser focusing and microscopic imaging was established. After the nucleated red blood cells were recognized and located, the light from an 808 nm laser source passed through a collimator lens and a convergent lens and was focused on the surface of the cell smear, which released cells under photothermal effect. A monolayer cell smear was processed and prepared, and then a photothermal effect was produced under the near-infrared light of 808 nm. After the control of the laser focusing system, a fixed cell-releasing area with a spot diameter of 300 μm was finally obtained. In this paper, the automatic slide-pushing technology was applied to the preparation of a monolayer cell smear based on hydrogel membrane, and the optical path of laser focusing and microscopic imaging was established. By using the near-infrared response and a thermal response of hydrogel membrane, the recognition and fixed-point release of nucleated red blood cells were realized, and the efficiency of separation and enrichment of nucleated red blood cells was improved. This technology has a broad application prospect in the field of prenatal screening and diagnosis.
- cell smear,
- hydrogel,
- prenatal diagnostics,
- near-infrared light response,
- cell release

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References(16)

References

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