Table 2.

Studies and patents related to modifications of bacterial cellulose for use as wound dressing.

Title	BC Modification	Application
Patent CN103861146A [160]	In situ polymer modifications to confer sticking properties to the BC, particulate leaching was carried out to make the film more porous.	Manufacture of a BC patch with great biological compatibility, excellent mechanical, anti-adherent and antimicrobial properties in environments of moist soft tissues.
Patent CN104403136 [161]	BC and pectin composite formed through in situ process.	The pectin/BC composite film presented 29% greater transparency, less porosity and permeability to water vapor as well as excellent sealing, enabling a safe, non-toxic wound dressing with considerable potential for applications in the field of medicine.
Patent CN106074458 [162]	BC processing with polyacrylonitrile, resulting in a polymeric composite.	Preparation of a fibrous polymeric composite with the capacity to deliver anti-inflammatory drugs for transdermal administration. This composite-drug combination can be used to achieve an appropriate, controlled drug-release rate.
Patent CN109966566A [163]	Dual-layering of BC in nanoporous and modified (in situ) microporous structure.	Preparation of a BC transdermal patch that can be used for wound repair. The inventors state that the patch has the potential to provide the basis for studies on hernia repair, cartilage scaffolding and other biological materials.