AUTOPHOBIC PINNING OF DROPS OF ALKANETHIOLS ON GOLD
AUTOPHOBIC PINNING OF DROPS OF ALKANETHIOLS ON GOLD
复制标题
DOI：
10.1021/la00024a032
复制
发表时间：
1994-12-01
期刊：
影响因子：
3.9
通讯作者：
WHITESIDES, GM
中科院分区：
文献类型：
--
作者：
BIEBUYCK, HA;WHITESIDES, GM
本文建立了烷硫醇溶液与金表面反应形成自憎钉扎的必要条件。界面张力和自组装膜的组织动力学是系统设计中的重要考虑因素，该系统限制液滴在对这些液滴具有反应性的表面上的扩散。本文研究的两个体系--十六烷醇（HDT）在空气中铺展在金上和羟基十一烷醇（HHT）在十六烷中铺展在水中铺展在金上--为理解基于硫醇与裸金反应的微接触印刷（mu CP）机理的一个方面提供了基础。金表面上的吸附物和表面的粗糙度最终限制了液体被钉扎在金表面上的范围，并通过μ CP和相关方法限制这些液体的钉扎（并确定图案化的分辨率）。
This paper establishes conditions necessary for autophobic pinning of solutions of alkanethiols by their reaction with a gold surface. Interfacial tension and the kinetics of organization of the SAMs are important considerations in the design of systems that limit the spread of drops across a surface that is reactive toward those drops. The two systems investigated in this paper-hexadecanethiol (HDT) spreading on gold in air and hydroxyundecanethiol (HHT) in hexadecane spreading on gold under water-provide a basis for understanding one aspect of the mechanism of microcontact printing (mu CP) based on the reaction of thiols with bare gold. Adsorbates on the gold surface, and the roughness of the surface, ultimately limit the ext-ent to which liquids are pinned on the surface of gold and constrain pinning of these liquids (and determine the resolution of patterning) by mu CP and related methods.