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Sodium alginate coupled with organosilane quaternary ammonium salt for the antibacterial application

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Abstract

Sodium alginate (SA) has been widely used in various fields of daily life. However, the lack of antibacterial properties of SA limits its further application. In this work, we successfully developed the antimicrobial SA derivative through the covalent coupling between organosilane quaternary ammonium salt DC-5700 (TSA) and SA using a one-pot reaction. The corresponding structures, molecular weights, morphologies, thermal properties, and viscosity of the SA-TSA samples were comprehensively characterized by FTIR, GPC, SEM, TGA, and rotational rheometer. The best antibacterial efficiency against Staphylococcus aureus and Escherichia coli can reach up to 99.6% and 99.3%, respectively. Specifically, great biocompatibility (> 80%) was observed when the concentration of best antibacterial SA-TSA3 was < 0.50 g/mL. Moreover, the antibacterial potential utility of antibacterial SA-TSA3 was demonstrated by the fabrication of SA beads. Finally, this antibacterial material of SA-TSA3 was expected to show great potential application in biomedical or textile fields.

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Acknowledgments

We would like to thank Dr. Xueqing Zhou for valuable guidance in the process of measuring molecular weight.

Funding

The authors would like to thank the Hainan Provincial Natural Science Foundation of China (220MS006, 220QN182, 222RC549), the Key Projects in the Hainan Provincial Science & Technology (ZDYF2021SHFZ054), the Tian** Natural Science Fundation (JCQNJC00240), the Fundamental Research Funds for the Central Universities (JCQNJC00240), the 43rd China-Czech Inter-governmental Science & Technology Cooperation (43-7), and the National Natural Science Foundation of China (22007025, 22278037, 22268018).

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Contributions

PW: methodology, investigation, formal analysis, writing—original draft. YC: methodology, investigation, validation. ZS: investigation, data curation. MC: investigation, validation. YL: methodology, supervision, data curation, project administration. KF: methodology, investigation, data curation. YZ: conceptualization, writing—review and editing, supervision, project administration, funding acquisition.

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Correspondence to Yuanyuan Liu, Kun Fu or Yang Zhou.

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Wu, P., Cui, Y., Sun, Z. et al. Sodium alginate coupled with organosilane quaternary ammonium salt for the antibacterial application. Cellulose 30, 449–462 (2023). https://doi.org/10.1007/s10570-022-04911-0

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  • DOI: https://doi.org/10.1007/s10570-022-04911-0

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