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Review
. 2024 May 13;10(5):2805-2826.
doi: 10.1021/acsbiomaterials.3c01989. Epub 2024 Apr 15.

Scaffold-Based Poly(Vinylidene Fluoride) and Its Copolymers: Materials, Fabrication Methods, Applications, and Perspectives

Wenbin Sun  1 , Chuang Gao  1 , Huazhen Liu  1   2 , Yi Zhang  1 , Zilong Guo  1 , Chunxiang Lu  1 , Hao Qiao  1 , Zhiqiang Yang  1 , Aoxiang Jin  1 , Jianan Chen  1 , Qiqi Dai  2 , Yuanyuan Liu  1   2   3
Affiliations
Review

Scaffold-Based Poly(Vinylidene Fluoride) and Its Copolymers: Materials, Fabrication Methods, Applications, and Perspectives

Wenbin Sun et al. ACS Biomater Sci Eng. .

Abstract

Tissue engineering involves implanting grafts into damaged tissue sites to guide and stimulate the formation of new tissue, which is an important strategy in the field of tissue defect treatment. Scaffolds prepared in vitro meet this requirement and are able to provide a biochemical microenvironment for cell growth, adhesion, and tissue formation. Scaffolds made of piezoelectric materials can apply electrical stimulation to the tissue without an external power source, speeding up the tissue repair process. Among piezoelectric polymers, poly(vinylidene fluoride) (PVDF) and its copolymers have the largest piezoelectric coefficients and are widely used in biomedical fields, including implanted sensors, drug delivery, and tissue repair. This paper provides a comprehensive overview of PVDF and its copolymers and fillers for manufacturing scaffolds as well as the roles in improving piezoelectric output, bioactivity, and mechanical properties. Then, common fabrication methods are outlined such as 3D printing, electrospinning, solvent casting, and phase separation. In addition, the applications and mechanisms of scaffold-based PVDF in tissue engineering are introduced, such as bone, nerve, muscle, skin, and blood vessel. Finally, challenges, perspectives, and strategies of scaffold-based PVDF and its copolymers in the future are discussed.

Keywords: Electrical stimulation; Piezoelectricity; Polyvinylidene fluoride; Scaffold; Tissue engineering.

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