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A superhydrophobic chip based on SU-8 photoresist pillars suspended on a silicon nitride membrane.
Marinaro, Giovanni; Accardo, Angelo; De Angelis, Francesco; Dane, Thomas; Weinhausen, Britta; Burghammer, Manfred; Riekel, Christian.
Afiliação
  • Marinaro G; European Synchrotron Radiation Facility, B.P.220, F-38043 Grenoble Cedex, France. riekel@esrf.fr.
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

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