TY - GEN
T1 - Surface tension-induced high aspect-ratio PDMS micropillars with concave and convex lens tips
AU - Li, Huawei
AU - Fan, Yiqiang
AU - Yi, Ying
AU - Foulds, Ian G.
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2013/4
Y1 - 2013/4
N2 - This paper reports a novel method for the fabrication of 3-dimensional (3D) Polydimethylsiloxane (PDMS) micropillars with concave and convex lens tips in a one-step molding process, using a CO2 laser-machined Poly(methyl methacrylate) (PMMA) mold with through holes. The PDMS micropillars are 4 mm high and have an aspect ratio of 251. The micropillars are formed by capillary force drawing up PDMS into the through hole mold. The concave and convex lens tips of the PDMS cylindrical micropillars are induced by surface tension and are controllable by changing the surface wetting properties of the through holes in the PMMA mold. This technique eliminates the requirements of expensive and complicated facilities to prepare a 3D mold, and it provides a simple and rapid method to fabricate 3D PDMS micropillars with controllable dimensions and tip shapes. © 2013 IEEE.
AB - This paper reports a novel method for the fabrication of 3-dimensional (3D) Polydimethylsiloxane (PDMS) micropillars with concave and convex lens tips in a one-step molding process, using a CO2 laser-machined Poly(methyl methacrylate) (PMMA) mold with through holes. The PDMS micropillars are 4 mm high and have an aspect ratio of 251. The micropillars are formed by capillary force drawing up PDMS into the through hole mold. The concave and convex lens tips of the PDMS cylindrical micropillars are induced by surface tension and are controllable by changing the surface wetting properties of the through holes in the PMMA mold. This technique eliminates the requirements of expensive and complicated facilities to prepare a 3D mold, and it provides a simple and rapid method to fabricate 3D PDMS micropillars with controllable dimensions and tip shapes. © 2013 IEEE.
UR - http://hdl.handle.net/10754/564703
UR - http://ieeexplore.ieee.org/document/6559711/
UR - http://www.scopus.com/inward/record.url?scp=84883119007&partnerID=8YFLogxK
U2 - 10.1109/NEMS.2013.6559711
DO - 10.1109/NEMS.2013.6559711
M3 - Conference contribution
SN - 9781467363525
SP - 187
EP - 190
BT - The 8th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems
PB - Institute of Electrical and Electronics Engineers (IEEE)
ER -