Volume 105, Issue 11 pp. 3093-3101
Original Article

Regulation of cell arrangement using a novel composite micropattern

Xiaoyi Liu

Xiaoyi Liu

Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191 People's Republic of China

State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Shanghai, 200050 People's Republic of China

These authors contributed equally to this work.

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Yaoping Liu

Yaoping Liu

Institute of Microelectronics, Peking University, Beijing, 100871 People's Republic of China

These authors contributed equally to this work.

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Feng Zhao

Feng Zhao

Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191 People's Republic of China

State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Shanghai, 200050 People's Republic of China

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Tingting Hun

Tingting Hun

Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191 People's Republic of China

State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Shanghai, 200050 People's Republic of China

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Shan Li

Shan Li

Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191 People's Republic of China

State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Shanghai, 200050 People's Republic of China

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Yuguang Wang

Yuguang Wang

Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, 100083 People's Republic of China

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Weijie Sun

Weijie Sun

Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, 100083 People's Republic of China

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Wei Wang

Wei Wang

Institute of Microelectronics, Peking University, Beijing, 100871 People's Republic of China

National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Beijing, 100871 China

Innovation Center for Micro-Nano-electronics and Integrated System, Beijing, 100871 China

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Yan Sun

Corresponding Author

Yan Sun

Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191 People's Republic of China

State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Shanghai, 200050 People's Republic of China

Correspondence to: Y. Fan; e-mail: [email protected] and Y. Sun; e-mail: [email protected]Search for more papers by this author
Yubo Fan

Corresponding Author

Yubo Fan

Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191 People's Republic of China

National Research Center for Rehabilitation Technical Aids, Beijing, 100176 People's Republic of China

Correspondence to: Y. Fan; e-mail: [email protected] and Y. Sun; e-mail: [email protected]Search for more papers by this author
First published: 13 July 2017
Citations: 8

Abstract

Micropatterning technique has been used to control single cell geometry in many researches, however, this is no report that it is used to control multicelluar geometry, which not only control single cell geometry but also organize those cells by a certain pattern. In this work, a composite protein micropattern is developed to control both cell shape and cell location simultaneously. The composite micropattern consists of a central circle 15 μm in diameter for single-cell capture, surrounded by small, square arrays (3 μm × 3 μm) for cell spreading. This is surrounded by a border 2 μm wide for restricting cell edges. The composite pattern results in two-cell and three-cell capture efficiencies of 32.1% ± 1.94% and 24.2% ± 2.89%, respectively, representing an 8.52% and 9.58% increase, respectively, over rates of original patterns. Fluorescent imaging of cytoskeleton alignment demonstrates that actin is gradually aligned parallel to the direction of the entire pattern arrangement, rather than to that of a single pattern. This indicates that cell arrangement is also an important factor in determining cell physiology. This composite micropattern could be a potential method to precisely control multi-cells for cell junctions, cell interactions, cell signal transduction, and eventually for tissue rebuilding study. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 3093–3101, 2017.

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