Functionalized bacterial cellulose derivatives and nanocomposites.

Area of Science:

• Materials Science
• Nanotechnology
• Biomaterials Engineering

Background:

• Bacterial cellulose (BC) is a renewable nanomaterial with excellent mechanical, porous, and biological properties.
• Research has focused on BC's biosynthesis for cost-effective preparation and applications in medicine and acoustics.
• Diverse applications are emerging by exploiting BC's inherent functionality.

Purpose of the Study:

• To review construction strategies for advanced BC-based functional nanomaterials.
• To summarize modification techniques including biosynthetic and chemical approaches.
• To highlight the preparation, mechanisms, and performance of BC derivatives and nanocomposites.

Main Methods:

• Biosynthetic modification of BC.
• Chemical modification of BC.
• In situ and ex situ functionalization with guest substrates (molecules, nanoparticles, polymers).

Main Results:

• Modification enhances BC compatibility with matrices, expanding nano-applications.
• Incorporation of guest substrates yields nanocomposites with improved physicochemical, catalytic, optoelectronic, and magnetic properties.
• BC derivatives and nanocomposites demonstrate potential in sensors, photocatalysis, optoelectronics, and responsive membranes.

Conclusions:

• Advanced BC-based functional nanomaterials can be prepared through various construction strategies.
• These materials offer enhanced properties for a wide range of high-tech applications.
• The review provides a comprehensive overview of preparation, mechanisms, and applications.