Antimicrobial application of nanofibrous mats self-assembled with quaternized chitosan and soy protein isolate

作者：Pan, Yijun; Huang, Xingjian; Shi, Xiaowen; Zhan, Yingfei; Fan, Gang; Pan, Siyi; Tian, Jing^*; Deng, Hongbing; Du, Yumin

来源：Carbohydrate Polymers, 2015, 133: 229-235.

DOI：10.1016/j.carbpol.2015.07.019

• HTCC
• Soy protein isolate
• Layer-by-layer
• Nanofibrous mats
• Antimicrobial activity

Positively charged N-[(2-hydroxy-3-trimethylammonium) propyl] chitosan chloride (HTCC) and negatively charged soy protein isolate (SPI) were alternately assembled on cellulose acetate (CA) electrospun nanofibrous mats via electrostatic layer-by-layer self-assembly technique. CA nanofibrous mats coated with bilayers of HTCC and SPI possessed more orderly-arranged structure than uncoated CA mats according to the observation from scanning electron microscopy images. The average diameter of the nanofibers was enlarged by the increase of the bilayer number. X-ray photoelectron spectroscopy indicated that HTCC and SPI were coated on the surface of the CA mats successfully. The average diameters of inhibition zones of (HTCC/SPI)(10.5)-films-coated nanofibrous mats against Escherichia coli and Staphylococcus aureus were 9.6 mm and 11.53 mm, respectively, which demonstrated the highest antimicrobial activity among samples in presented study.

• 出版日期2015-11-20
• 单位武汉大学; 华中农业大学