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A superhydrophobic chip based on SU-8 photoresist pillars suspended on a silicon nitride membrane.
- Source :
-
Lab on a chip [Lab Chip] 2014 Oct 07; Vol. 14 (19), pp. 3705-9. - Publication Year :
- 2014
-
Abstract
- We developed a new generation of superhydrophobic chips optimized for probing ultrasmall sample quantities by X-ray scattering and fluorescence techniques. The chips are based on thin Si3N4 membranes with a tailored pattern of SU-8 photoresist pillars. Indeed, aqueous solution droplets can be evaporated and concentrated at predefined positions using a non-periodic pillar pattern. We demonstrated quantitatively the deposition and aggregation of gold glyconanoparticles from the evaporation of a nanomolar droplet in a small spot by raster X-ray nanofluorescence. Further, raster nanocrystallography of biological objects such as rod-like tobacco mosaic virus nanoparticles reveals crystalline macro-domain formation composed of highly oriented nanorods.
Details
- Language :
- English
- ISSN :
- 1473-0189
- Volume :
- 14
- Issue :
- 19
- Database :
- MEDLINE
- Journal :
- Lab on a chip
- Publication Type :
- Academic Journal
- Accession number :
- 25111677
- Full Text :
- https://doi.org/10.1039/c4lc00750f