Antimicrobial properties of lignin-decorated thin multi-walled carbon nanotubes in poly(vinyl alcohol) nanocomposites

作者：Lee Eun Sil; Kim Young O; Ha Yu Mi; Lim Daun; Hwang Jun Yeon; Kim Jaewoo; Park Min; Cho Jae Whan; Jung Yong Chae^*

来源：European Polymer Journal, 2018, 105: 79-84.

DOI：10.1016/j.eurpolymj.2018.05.014

• Lignin
• Antimicrobial
• Carbon nanotube
• Nanofiber

Lignin-decorated thin multi-walled carbon nanotubes (t-MWNTs) were prepared to obtain mechanically strong poly(vinyl alcohol) (PVA) nanofibers (NFs) with high antimicrobial properties. The t-MWNTs were well-dispersed in the aqueous lignin solution owing to their good interaction with lignin molecules, resulting in decoration of the lignin molecules on the surface of the t-MWNTs. The lignin-decorated t-MWNT/PVA NF webs were prepared by electrospinning lignin/t-MWNT/PVA solutions containing 1 wt% t-MWNTs. They displayed enhanced mechanical properties in terms of breaking stress and modulus, compared to lignin/PVA nanofibers. Superior antimicrobial activity was also exhibited by the lignin/t-MWNTs/PVA composites compared to lignin/PVA composites. The mechanical properties of the lignin/t-MWNT/PVA NFs could be preserved even after the heat treatment of PVA, which is a necessary process for medical applications such as wound healing on the skin's dermal layer.

• 出版日期2018-8