Recent Progress of the Vat Photopolymerization Technique in Tissue Engineering: A Brief Review of Mechanisms, Methods, Materials, and Applications

Author:

Li Ying1,Zhang Xueqin1,Zhang Xin1,Zhang Yuxuan2,Hou Dan3

Affiliation:

1. College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China

2. FuYang Sineva Materials Technology Co., Ltd., Beijing 100176, China

3. Chinese Academy of Meteorological Sciences, China National Petroleum Corporation, Beijing 102206, China

Abstract

Vat photopolymerization (VP), including stereolithography (SLA), digital light processing (DLP), and volumetric printing, employs UV or visible light to solidify cell-laden photoactive bioresin contained within a vat in a point-by-point, layer-by-layer, or volumetric manner. VP-based bioprinting has garnered substantial attention in both academia and industry due to its unprecedented control over printing resolution and accuracy, as well as its rapid printing speed. It holds tremendous potential for the fabrication of tissue- and organ-like structures in the field of regenerative medicine. This review summarizes the recent progress of VP in the fields of tissue engineering and regenerative medicine. First, it introduces the mechanism of photopolymerization, followed by an explanation of the printing technique and commonly used biomaterials. Furthermore, the application of VP-based bioprinting in tissue engineering was discussed. Finally, the challenges facing VP-based bioprinting are discussed, and the future trends in VP-based bioprinting are projected.

Publisher

MDPI AG

Subject

Polymers and Plastics,General Chemistry

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