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[Langmuir] Underwater transparent miniature “mechanical hand” based on femtosecond laser-induced con


Abstract:

The development of underwater superoleophobic surfaces makes researchers be swept up in boundless imagination of their applications, thereinto the oil manipulation based on such surface attracts much attention. Here, we show a simple and effective way to fabricate an underwater transparent miniature “mechanical hand” based on controllable oil-adhesive patterned glass prepared by femtosecond laser. The underwater oil-adhesive force of the patterned glasses that compose the “mechanical hand” device can be controlled from ultralow to ultrahigh through adjusting the different fraction of the untreated flat glass area to the laser-ablated rough area. These surfaces also show a favourable transparency in water. Various oils, such as chloroform, hexadecane, n-dodecane, decane, liquid paraffin and petroleum ether are put to test and confirmed to be repelled by the as-prepared surfaces in water medium. Moreover, the “mechanical hand” is used to implement oil transportation, fusion and rapid capture, which can be applied in the construction of microfluidic devices, in-situ detector and bioreactors.

Jinglan Huo, Qing Yang, Feng Chen, Jiale Yong, Yao Fang, Jingzhou Zhang, Lin Liu, and Xun Hou

Langmuir, Just Accepted Manuscript

DOI: 10.1021/acs.langmuir.7b00393

Publication Date (Web): March 19, 2017

Copyright © 2017 American Chemical Society

Link: http://pubs.acs.org/doi/abs/10.1021/acs.langmuir.7b00393

#03212017 #underwater #laser #superoleophobic

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