Ultrasonic fabrication of flexible antibacterial ZnO nanopillar array film

다국어 초록 (Multilingual Abstract)

<P><B>Abstract</B></P> <P>Antibacterial activity is essential and highly demanded in worldwide to prevent potential bacterial infection. Here in this work, we report a new approch for the fabrication of flexible zinc oxide nanopillar arrays (ZG-NPA) film with an efficient antibacterial activity. A flexible NPA film served as a substrate for the rapid formation of ZnO by using ultrasound-assisted method. The enhancement of antibacterial activity were induced by cellular damages because of nano topological effects and electrostatic interaction between bacteria and ZG-NPA. Owing to the benefits of combination with flexibility, high surface areas from nano-features and excellent antibacterial efficiency (>80%) of ZG-NPA, the film can show great potential for use as novel biomaterials for preventing bacterial infections.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The flexible antibacterial ZnO nanopiilar arrays were sucessfully fabricated by assistance of sonochemical reaction. </LI> <LI> The ZnO formation mechanism is also proposed and investigated using FT-IR and XRD. </LI> <LI> Antibacterial efficiency was depthly investigated using realistic pathogetnic bacteria model of <I>E. coli</I> O157:H7 and <I>S. aureus</I>. </LI> <LI> ZnO nanopiilar arrays have improved antibacterial behavior because of nanotopological effects and electrostatic interaction. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>