Bacterial Antifouling Characteristics of Helicene—Graphene Films

Nanomaterials

卷:11

Mustafa Akbulut¹  Shuhao Liu¹  Michael Bae¹  Younjin Min²  Andrew R. White²  Luis Cisneros-Zevallos³  Jun Kyun Oh⁴  Li Hao⁵ 

[1] Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA;

[2] Department of Chemical and Environmental Engineering, University of California, Riverside, CA 92521, USA;

[3] Department of Horticultural Sciences, Texas A&M University, College Station, TX 77843, USA;

[4] Department of Polymer Science and Engineering, Dankook University, 152 Jukjeon-ro, Suji-gu, Yongin-si 16890, Korea;

[5] School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China;

关键词: bacterial antifouling;    helicene;    thin film;    Langmuir-Schaefer;    S. aureus;   

DOI  :  10.3390/nano11010089

来源: DOAJ

【 摘 要 】

Herein, we describe interfacially-assembled [7]helicene films that were deposited on graphene monolayer using the Langmuir-Schaefer deposition by utilizing the interactions of nonplanar (helicene) and planar (graphene) π–π interactions as functional antifouling coatings. Bacterial adhesion of Staphylococcus aureus on helicene—graphene films was noticeably lower than that on bare graphene, up to 96.8% reductions in bacterial adhesion. The promising bacterial antifouling characteristics of helicene films was attributed to the unique molecular geometry of helicene, i.e., nano-helix, which can hinder the nanoscale bacterial docking processes on a surface. We envision that helicene—graphene films may eventually be used as protective coatings against bacterial antifouling on the electronic components of clinical and biomedical devices.

【 授权许可】

Unknown