Bacterial Cellulose: Production, Modification and Perspectives in Biomedical Applications

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Microbial Biotechnology

Background:

• Bacterial cellulose (BC) is a nanofibrillar material with exceptional properties including high crystallinity, large surface area, and high water-holding capacity.
• Its high purity, characterized by the absence of lignin and hemicellulose, confers non-cytotoxic, non-genotoxic, and highly biocompatible attributes.
• These characteristics make BC a material of significant interest for various medical applications.

Purpose of the Study:

• To review the microbial aspects of bacterial cellulose production, including bacterial strains, carbon sources, and media.
• To summarize in situ and ex situ modification methods for bacterial cellulose, focusing on bionic design.
• To explore the applications of modified bacterial cellulose in regenerative medicine.

Main Methods:

• Review of scientific literature on bacterial cellulose production and modification.
• Analysis of microbial strains, carbon sources, and culture media for BC synthesis.
• Investigation of in situ and ex situ modification techniques for tailoring BC properties.
• Examination of diverse regenerative medicine applications, including wound healing, artificial skin, and tissue repair implants.

Main Results:

• Bacterial cellulose can be produced using various bacterial strains and optimized media compositions.
• In situ and ex situ modification strategies allow for tailoring BC's properties for specific biomedical needs.
• BC-based constructs have demonstrated potential in wound healing, artificial skin, vascular grafts, nerve regeneration, and orthopedic implants.
• The review highlights the successful translation of BC in numerous preclinical and clinical studies.

Conclusions:

• Bacterial cellulose is a versatile biomaterial with significant potential in regenerative medicine due to its unique properties and biocompatibility.
• Further research into microbial production optimization and advanced modification techniques will enhance its clinical translation.
• Bionic designs incorporating bacterial cellulose offer promising solutions for various unmet medical needs, paving the way for novel therapeutic products.