A superhydrophobic chip based on SU-8 photoresist pillars suspended on a silicon nitride membrane.
Lab Chip
; 14(19): 3705-9, 2014 Oct 07.
Article
em En
| MEDLINE
| ID: mdl-25111677
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.
Texto completo:
1
Base de dados:
MEDLINE
Idioma:
En
Revista:
Lab Chip
Assunto da revista:
BIOTECNOLOGIA
/
QUIMICA
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
França