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Lab Chip. 2013 Apr 21;13(8):1626-31. doi: 10.1039/c3lc41171k.

Direct laser writing of sub-50 nm nanofluidic channels buried in glass for three-dimensional micro-nanofluidic integration.

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  • 1State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, PR China.

Abstract

We report on the fabrication of nanofluidic channels directly buried in silicate glass with transverse widths down to less than 50 nm using three-dimensional (3D) femtosecond laser direct writing. Using this technique, integrated micro-nanofluidic systems have been produced by simultaneously writing micro- and nanofluidic channels arranged into various 3D configurations in glass substrates. The fabricated micro- and nanofluidic systems have been used to demonstrate DNA analysis, e.g. stretching of DNA molecules. Our technique offers new opportunities to develop novel 3D micro-nanofluidic systems for a variety of lab-on-a-chip applications.

PMID:
23463190
[PubMed - indexed for MEDLINE]
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