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- W4213193794 abstract "Uniform and porous chitosan-based microparticles with injectable and shape-memory properties are particularly attractive due to their promising application potential for tissue engineering and regenerative medicine. However, simple and efficient methods for producing this kind of microparticle are still desirable. In this study, we report that uniform, injectable, and shape-memory chitosan microsponges were efficiently prepared by combining microfluidic emulsion with further freezing and in situ thawing processes without using any potentially cytotoxic chemical cross-linker. The produced chitosan microsponges have controllable size and could be easily injected with syringe needles. Structural observations confirmed that the chitosan microsponge had an interconnected porous structure with pore size of several micrometers and could withstand a large compressive strain of ∼93% and then recover ∼96% of its initial diameter without structural damage. The chitosan microsponges showed a high porosity (∼84%) and swelling ratio (∼3800%) as well as good antibacterial activity. Additionally, an in vitro cell coculturing investigation revealed that they also had good biocompatibility and exhibited great superiority to support cell adhesion and proliferation in three dimensions. The kind of chitosan microsponge presented here has great potential to serve as cell carriers for biomedical applications, especially as injectable scaffolds for regeneration and reconstruction of tissue defects." @default.
- W4213193794 created "2022-02-24" @default.
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- W4213193794 date "2022-02-16" @default.
- W4213193794 modified "2023-10-15" @default.
- W4213193794 title "Efficient Fabrication of Uniform, Injectable, and Shape-Memory Chitosan Microsponges as Cell Carriers for Tissue Engineering" @default.
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- W4213193794 doi "https://doi.org/10.1021/acsapm.1c01587" @default.
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