Superhydrophobic Surface Enabling Reversible Electrowetting and Mass Spectrometry Analysis
This paper reports on the possibility to use a superhydrophobic surface to displace biological droplet by EWOD and to analyze it by matrix-free desorption/ionization mass spectrometry (DIOS MS). The surface consists of silicon nanowires grown on Si/SiO<,2> (SiO<,2> thickness=300nm) using the vapor- liquid-solid (VLS) growth mechanism and hydrophobized by coating with C4F8. We show that reversible electrowetting of liquid droplets in air environment is possible on such superhydrophobic surfaces. Furthermore, the realization of superhydrophilic patterns on the superhydrophobic silicon nanowires substrate was successfully used to carry out DIOS MS of biological molecules.
EWOD Silicon nanowires Superhydrophobic surfaces DIOS
Rabah Boukherroub Nicolas Verplanck Yannick Coffinier Gaelle Piret Vincent Thomy
Institut de Recherche Interdisciplinaire (IRI, CNRS-FRE 2963) Institut dElectronique, de Microelect Institut dElectronique, de Microelectronique et de Nanotechnologie (IEMN, UMR 8520), Cite Scientifi
国际会议
The First Shenyang International Colloquium on Micrifluidics(首届沈阳国际微流控学术论坛)
沈阳
英文
107-110
2007-10-21（万方平台首次上网日期，不代表论文的发表时间）