The Antibacterial Polyamide 6-ZnO Hierarchical Nanofibers Fabricated by Atomic Layer Deposition and Hydrothermal Growth

Nanoscale Research Letters

Zhongwei Liu¹  Lijun Sang¹  Zhengduo Wang¹  Qiang Chen¹  Lizhen Yang¹  Li Zhang¹ 

[1] Laboratory of Plasma Physics and Materials, Beijing Institute of Graphic Communication;

关键词: ALD and hydrothermal techniques;    Core-shell structure;    Antibacterial;   

DOI  :  10.1186/s11671-017-2162-1

来源: DOAJ

【 摘 要 】

Abstract In this paper, we report the combination of atomic layer deposition (ALD) with hydrothermal techniques to deposit ZnO on electrospun polyamide 6 (PA 6) nanofiber (NF) surface in the purpose of antibacterial application. The micro- and nanostructures of the hierarchical fibers are characterized by field emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HRTEM), and scanning transmission electron microscopy (STEM). We find that NFs can grow into “water lily”- and “caterpillar”-like shapes, which depend on the number of ALD cycles and the hydrothermal reaction period. It is believed that the thickness of ZnO seed layer by ALD process and the period in hydrothermal reaction have the same importance in crystalline growth and hierarchical fiber formation. The tests of antibacterial activity demonstrate that the ZnO/PA 6 core-shell composite fabricated by the combination of ALD with hydrothermal are markedly efficient in suppressing bacteria survivorship.

【 授权许可】

Unknown