An edible kanamycin sulfate cross-linked cellulose active against multiple pathogenic bacteria.

In this work, an edible cellulose-based antibacterial material was prepared by cross-linking α-cellulose and kanamycin sulfate via glutaraldehyde to form kanamycin sulfate-glutaraldehyde-cellulose. Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and X-ray diffraction results indicated that the kanamycin sulfate molecule was cross-linked with the molecular chain of cellulose. The optimal mass ratio of kanamycin sulfate to α-cellulose was 1:100 and the degree of substitution reached 1.11%. The optimal kanamycin sulfate-glutaraldehyde-cellulose material showed an excellent inhabitation against both Gram-positive and Gram-negative bacteria. Meantime, the optimal kanamycin sulfate-glutaraldehyde-cellulose had a marked resistance to gastric acid and had low cell cytotoxicity. To promote the application of the kanamycin sulfate-glutaraldehyde-cellulose material, the porous microspheres were prepared via the sol-gel method. The particle size of the homogeneous porous microspheres is mainly distributed between 1.5 and 2.0 μm. Therefore, the kanamycin sulfate-glutaraldehyde-cellulose described herein is a potential edible, eco-friendly, potent, stable, inexpensive, and antibacterial carrier material for delivering drugs, proteins, or vaccines. Copyright © 2021 Elsevier B.V. All rights reserved.

Citation

Jun Gu, Shuaifeng Zhang, Xuefeng Xia, Xuehan Zhang, Baochao Fan, Junming Zhou, Haodan Zhu, Wei Wang, Xianghui Qi, Li Li, Bin Li. An edible kanamycin sulfate cross-linked cellulose active against multiple pathogenic bacteria. International journal of biological macromolecules. 2022 Jan 01;194:435-444

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PMID: 34801585

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