Journal
CARBOHYDRATE POLYMERS
Volume 136, Issue -, Pages 493-498Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2015.09.060
Keywords
Cationic microfibrillated cellulose; Triclosan; Sorption models; Functionalization; Antibacterial activity
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Cationic microfibrillated cellulose (CMFC), as one kind of cellulose-based materials, is widely used in many fields. In this work, it was functionalized with a traditional antibacterial agent (triclosan, TCS). The sorption process of TCS onto CMFC was expressed by kinetic and isotherm models. The results showed that there was a high correlation coefficient (R-2 > 0.9) in the pseudo-second-order model and the isotherm models, indicating that CMFC had a good sorption capacity for TCS. The sorption type was chemisorption, and the reaction power was electrostatic interactions. The antibacterial activity of the assembled TCS/CMFC compound was tested by disk diffusion method, and it was found a higher antibacterial activity than CMFC alone (bigger inhibition zone diameters). Further, the functionalized TCS/CMFC compound was used in the fiber network during handsheets making, and it had a higher antibacterial rate than TCS alone (increase by 45.1% against Escherichia coli and by 54.8% against Staphylococcus aureus, respectively). (C) 2015 Elsevier Ltd. All rights reserved.
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