Diffusion of self-assembled monolayers of thiols on the gold surfaces covered with polydimethylsiloxane stamps

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• 作者：Xiaoyu Wang (1)
  Yongsuo Liu (3)
  Zhenling Chen (2) (3)
  Yong Li (2)
  Kang Sun (2)
  Xingyu Jiang (2)
  
• 刊名：Journal of Materials Science
• 出版年：2014
• 出版时间：June 2014
• 年：2014
• 卷：49
• 期：12
• 页码：4394-4398
• 全文大小：518 KB
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• 作者单位：Xiaoyu Wang (1)
  Yongsuo Liu (3)
  Zhenling Chen (2) (3)
  Yong Li (2)
  Kang Sun (2)
  Xingyu Jiang (2)
  
  1. Key Laboratory for Wetland Ecology and Vegetation Restoration of National Environmental Protection, School of Environmental Sciences, Northeast Normal University, Jingyue District, Changchun, 130117, China
  3. Civil Aviation Medicine Center, Civil Aviation Administration of China (Civil Aviation General Hospital), Gaojing No. A1, Chaoyang District, Beijing, 100123, China
  2. CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety, NanoScience and NanoTechnology, 11 Beiyitiao, ZhongGuanCun, Haidian District, Beijing, 100190, China
  
• ISSN：1573-4803

文摘

Thiols can diffuse and form self-assembled monolayers (SAMs) on the gold surfaces covered with polydimethylsiloxane (PDMS) stamps. For the first time, with cells as the indicator of how far alkanethiols had diffused to form SAM, we studied the growth dynamics of SAMs of HS(CH2)11(OCH2CH2)3OH (EG3) and HS(CH2)11(OCH2CH2)6OH (EG6) on the gold surfaces covered with PDMS stamps. The growth of SAMs is well described by one-dimensional diffusion from a line source of concentration, with surface diffusion coefficient of 193.4?±?19.2?μm2/min (EG3) and 95.8?±?18.9?μm2/min (EG6).