Hernandez, C.; Draczyński, Z.; Borkowski, D.; Kaźmierczak, D. Enhanced Antibacterial Properties of Chitosan Fibres. Preprints2023, 2023051651. https://doi.org/10.20944/preprints202305.1651.v1
APA Style
Hernandez, C., Draczyński, Z., Borkowski, D., & Kaźmierczak, D. (2023). Enhanced Antibacterial Properties of Chitosan Fibres. Preprints. https://doi.org/10.20944/preprints202305.1651.v1
Chicago/Turabian Style
Hernandez, C., Dominik Borkowski and Dorota Kaźmierczak. 2023 "Enhanced Antibacterial Properties of Chitosan Fibres" Preprints. https://doi.org/10.20944/preprints202305.1651.v1
Abstract
Over the years, chitosan has been the subject of numerous studies and has gained significant popularity as a biomaterial due to its various characteristics, including biocompatibility, biodegradability, and bioactivity. In this work, chitosan fibres surface was modified with ursolic acid to improve their antibacterial properties by wet impregnation method. Five specimens of chitosan fibres were immersed in ursolic acid (UA) solution for varying immersion times of 1, 2, 4, 6, and 8 hours. Characterization was carried out by means of FTIR, SEM, UV-Vis spectroscopy; the results indicated an ongoing chemical reaction between chitosan and ursolic acid resulting in changes to the chemical structure. After 2 hours, the absorbance ratio remained constant; suggesting that the reaction had reached completion and the chemical structure of the sample remained stable. Antibacterial tests were performed on the resulting chitosan fibres against two bacterial strains. The fibres without ursolic acid did not exhibit any noteworthy antibacterial activity against either strain. However, the chitosan fibres modified with ursolic acid showed significant and almost strong antibacterial activity against the Gram-positive strain, S. aureus. These results suggest that chitosan fibres modified with ursolic acid could have potential applications as antibacterial materials, particularly against Gram-positive bacteria.
Copyright:
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