Title of article :
Grafting of ionic liquids on stainless steel surface for antibacterial application
Author/Authors :
Pang، نويسنده , , Li Qing and Zhong، نويسنده , , Li Juan and Zhou، نويسنده , , Hui Fang and Wu، نويسنده , , Xue E. and Chen، نويسنده , , Xiao Dong، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2015
Pages :
7
From page :
162
To page :
168
Abstract :
Stainless steel (SS) is favored for many uses due to its excellent chemical resistance, thermal stability and mechanical properties. Biofilms can be formed on stainless steel and may lead to serious hygiene problems and economic losses in many areas, e.g. food processing, public infrastructure and healthcare. For the first time, our work endeavored to make SS having antibacterial properties, ionic liquids (ILs) were grafted on SS surface via silane treatment followed by thiol-ene click reaction. The chemical structure and composition of the ILs grafted stainless-steel coupon surfaces were characterized by X-ray photoelectron spectroscopy (XPS) and attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy. The antibacterial activity has been investigated, and the results showed that the ILs grafted SS surface exhibited significant antibacterial effects against Gram-negative Escherichia coli. Additionally, the results obtained here indicated that the ILs used here having bromide anion showed much better antibacterial activity against E. coli than the corresponding ILs with tetrafluoroborate and hexafluorophosphate as anions. These results obtained here can help to design novel and more efficient stainless steel having antibacterial surface.
Keywords :
Stainless steel , Ionic liquids , E. coli , Antibacterial
Journal title :
Colloids and Surfaces B Biointerfaces
Serial Year :
2015
Journal title :
Colloids and Surfaces B Biointerfaces
Record number :
1979392
Link To Document :
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