Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Advances in Modulating Mechanical Properties of Gelatin-based Hydrogel in Tissue Engineering

Version 1 : Received: 15 October 2023 / Approved: 18 October 2023 / Online: 18 October 2023 (17:13:00 CEST)

A peer-reviewed article of this Preprint also exists.

Azmir, M.S.N.A.; Moni, Md.N.; Gobetti, A.; Ramorino, G.; Dey, K. Advances in Modulating Mechanical Properties of Gelatin-Based Hydrogel in Tissue Engineering. International Journal of Polymeric Materials and Polymeric Biomaterials 2024, 1–36, doi:10.1080/00914037.2024.2330420. Azmir, M.S.N.A.; Moni, Md.N.; Gobetti, A.; Ramorino, G.; Dey, K. Advances in Modulating Mechanical Properties of Gelatin-Based Hydrogel in Tissue Engineering. International Journal of Polymeric Materials and Polymeric Biomaterials 2024, 1–36, doi:10.1080/00914037.2024.2330420.

Abstract

In the last two decades, gelatin-based hydrogels have been widely used as tissue engineering scaffolds due to their excellent biocompatibility, biodegradability, easy processability, transparency, non-toxicity, and reasonable structural similarity to the natural extracellular matrix (ECM). However, intrinsic low mechanical properties of gelatin are not structurally and mechanically suitable to support cell growth and proliferation. That’s why various crosslinking strategies including physical, chemical, enzymatic and combination of them as well as networking patterns including double network, interpenetrating network and nano reinforcing mechanism have been utilized to enhance the structural stability and mechanical integrity of gelatin. In this review, the advances in modulating the mechanical properties of gelatin-based hydrogels for the design and development of structurally stable scaffolds for tissue engineering are discussed. The optimized crosslinking parameters with the adequate mechanical properties of gelatin-based hydrogels are reviewed. Gelatin-based scaffolds for a wide range of tissue engineering applications, such as bone, cartilage, cardiac, skin, and nerve tissue engineering are also outlined. Lastly, current challenges and future perspectives in this research field are presented.

Keywords

hydrogel; gelatin; mechanical property; crosslinking; scaffold; tissue engineering

Subject

Chemistry and Materials Science, Biomaterials

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