Different methods for beta-cyclodextrin/triclosan complexation as antibacterial treatment of cellulose substrates

作者：Peila R^*; Vineis C; Varesano A; Ferri A

来源：Cellulose, 2013, 20(4): 2115-2123.

DOI：10.1007/s10570-013-9967-6

• Antibacterial activity
• beta-Cyclodextrin
• Triclosan

Two different production ways of antibacterial cotton fabrics by means of triclosan inclusion into a beta-cyclodextrin cavity have been compared. On the one hand, triclosan has been dissolved into an aqueous solution of a beta-cyclodextrin derivative with the aim of including the antibacterial agent into the cavity before grafting the beta-cyclodextrin on a cotton fabric. On the other hand, the same beta-cyclodextrin derivative has been grafted onto cotton and, subsequently, the fabric has been immersed into a triclosan water-ethanol solution to allow the inclusion complex formation. The antibacterial properties have been evaluated according to AATCC Test Method 100-1993 before and after two washing cycles at 60 A degrees C. It has been shown that the durability of the antibacterial finishing depends on the production method, obtaining a more durable antibacterial action in case of prior triclosan inclusion followed by grafting. This suggests that the immobilization onto the fiber has affected the cyclodextrin cavity accessibility.

• 出版日期2013-8