Double transfer printing of small volumes of liquids

被引:19
|
作者
Gupta, Chaitanya
Mensing, Glennys A.
Shannon, Mark A. [1 ]
Kenis, Paul J. A.
机构
[1] Univ Illinois, Dept Mech Sci & Engn, Dept Chem & Biomol Engn, Urbana, IL 61801 USA
[2] Univ Illinois, Beckman Inst Adv Sci & Technol, Urbana, IL 61801 USA
关键词
D O I
10.1021/la063266d
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We report here a technique to print small volumes of liquid on a hydrophobic substrate. This process is based on the control of the critical parameters that govern a quasi-equilibrium liquid transfer process from one surface to another. We present a qualitative model that describes the physics of a transfer printing process between hydrophobic surfaces, and we use the parameters outlined in this model to manipulate the amount of liquid transferred between surfaces. We demonstrate the printing of discrete, small volumes (similar to 70 fL) of different liquid inks on a polymer substrate starting with volumes that are 8 orders of magnitude larger (a droplet of similar to 10 mu L) in a simple two-step procedure.
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收藏
页码:2906 / 2914
页数:9
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