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Updated: Mar 16, 2026

Bacterial Cellulose Spheres that Encapsulate Solid Materials
Published on: February 26, 2021
A plasma modified cellulose-chitosan porous membrane allows efficient DNA binding and provides antibacterial
Sasiwimon Chumwangwapee1, Artit Chingsungnoen2, Sineenat Siri3
1Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
Abstract:
In forensic DNA analyses, biological specimens are collected and stored for subsequent recovery and analysis of DNA. A cost-effective and efficient DNA recovery approach is therefore a need. This study aims to produce a plasma modified cellulose-chitosan membrane (pCE-CS) that efficiently binds and retains DNA as a potential DNA collecting card. The pCE-CS membrane was produced by a phase separation of ionic liquid dissolving CE and CS in water with subsequent surface-modification by a two-step exposure of argon plasma and nitrogen gas. Through plasma modification, the pCE-CS membrane demonstrated better DNA retention after a washing process and higher rate of DNA recovery as compared with the original CE-CS membrane and the commercial FTA card. In addition, the pCE-CS membrane exhibited anti-bacterial properties against both Escherichia coli and Staphylococcus aureus. The results of this work suggest a potential function of the pCE-CS membrane as a DNA collecting card with a high recovery rate of captured DNA.
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