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The antimicrobial activity of the cotton fabric grafted with an amino-terminated hyperbranched polymer

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An amino-terminated hyperbranched polymer (HBP-NH2) was grafted to cotton fabric by a reaction between the aldehyde groups of oxidized cotton fabric and the amino groups of the HBP-NH2 to provide cotton fabric with durable antimicrobial properties. The antimicrobial activities of the HBP-NH2 aqueous solutions and the HBP-NH2 grafted cotton fabrics were evaluated quantitatively against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). The results indicated that the HBP-NH2 grafted cotton fabric showed 92% of bacterial reduction to S. aureus and 95% of bacterial reduction to E. coli, respectively. The antimicrobial activities of the HBP-NH2 grafted cotton fabrics were maintained at over 91% reduction level even after being exposed to 20 consecutive home laundering conditions. Several influence factors, which may affect the amount of HBP-NH2 grafted onto the cotton fabrics, were also discussed.

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The authors are grateful for the financial support by the Doctoral Program Foundation of the Institutions of Higher Education of China (No. 20060285004) and by the Postgraduates Cultivation and Innovation Project of Jiangsu Province China (No. CX07B_151z).

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Correspondence to Yuyue Chen.

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Zhang, F., Zhang, D., Chen, Y. et al. The antimicrobial activity of the cotton fabric grafted with an amino-terminated hyperbranched polymer. Cellulose 16, 281–288 (2009).

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