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Ultrahydrophobic properties of porous silicon for surface based bioanalysis

Ressine, Anton LU ; Augustsson, Per LU ; Marko-Varga, György LU and Laurell, Thomas LU (2007) Eleventh International Conference on Miniaturized Systems for Chemistry and Life Sciences 2. p.1046-1047
Abstract
Previously we reported the extreme water repellency of randomly organized macro-/nanoporous silicon surfaces [1]. The texturized silicon with hierarchical porous structure in micrometer and nanometer scale was shown to exhibit the superhydrophobic behaviour. Contact angles as high as 176º can be easily achieved with further fluoroalkylsilane modification of the porous surfaces. Porous silicon technology is compatible with the silicon patterning techniques allowing easy integration of the ultrahydrophobic properties into microfluidic and lab-on-a-chip devices for a new generation of surface based bioanalysis. In this paper we report the fabrication of ultrahydrophobic porous silicon channels and ultrahydrophobic nanovial arrays. Also the... (More)
Previously we reported the extreme water repellency of randomly organized macro-/nanoporous silicon surfaces [1]. The texturized silicon with hierarchical porous structure in micrometer and nanometer scale was shown to exhibit the superhydrophobic behaviour. Contact angles as high as 176º can be easily achieved with further fluoroalkylsilane modification of the porous surfaces. Porous silicon technology is compatible with the silicon patterning techniques allowing easy integration of the ultrahydrophobic properties into microfluidic and lab-on-a-chip devices for a new generation of surface based bioanalysis. In this paper we report the fabrication of ultrahydrophobic porous silicon channels and ultrahydrophobic nanovial arrays. Also the MALDI-TOF MS (matrix assisted laser desorption/ionization time-of-flight mass-spectrometry) target anchor chip composed of the hydrophilic anchor points for sample deposition surrounded by the ultrahydrophobic porous area is reported. Such anchor chip allowed the deposition of large sample volumes providing the strategy to improve MALDI-TOF MS sensitivity. (Less)
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author
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organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
MALDI-TOF MS, water repellency, porous silicon, superhydrophobic, microfluidics
host publication
Micro Total Analysis Systems 2007, Proceedings of µTAS 2007 Conference
editor
Jean-Louis, Viovy ; Tabeling, Patrick ; Descroix, Stephanie and Malaquin, Laurent
volume
2
pages
3 pages
publisher
Chemical and Biological Microsystems Society
conference name
Eleventh International Conference on Miniaturized Systems for Chemistry and Life Sciences
conference location
Paris, France
conference dates
2007-10-07 - 2007-10-11
external identifiers
  • scopus:67349116462
ISBN
978-0-9798064-0-7
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Analytical Chemistry (S/LTH) (011001004), Biomedical Engineering (011200011)
id
2e1bb0b7-ad27-4b8b-85c6-761d14de9e4b (old id 750854)
date added to LUP
2016-04-04 09:59:01
date last changed
2020-10-04 06:39:06
@inproceedings{2e1bb0b7-ad27-4b8b-85c6-761d14de9e4b,
  abstract     = {Previously we reported the extreme water repellency of randomly organized macro-/nanoporous silicon surfaces [1]. The texturized silicon with hierarchical porous structure in micrometer and nanometer scale was shown to exhibit the superhydrophobic behaviour. Contact angles as high as 176º can be easily achieved with further fluoroalkylsilane modification of the porous surfaces. Porous silicon technology is compatible with the silicon patterning techniques allowing easy integration of the ultrahydrophobic properties into microfluidic and lab-on-a-chip devices for a new generation of surface based bioanalysis. In this paper we report the fabrication of ultrahydrophobic porous silicon channels and ultrahydrophobic nanovial arrays. Also the MALDI-TOF MS (matrix assisted laser desorption/ionization time-of-flight mass-spectrometry) target anchor chip composed of the hydrophilic anchor points for sample deposition surrounded by the ultrahydrophobic porous area is reported. Such anchor chip allowed the deposition of large sample volumes providing the strategy to improve MALDI-TOF MS sensitivity.},
  author       = {Ressine, Anton and Augustsson, Per and Marko-Varga, György and Laurell, Thomas},
  booktitle    = {Micro Total Analysis Systems 2007, Proceedings of µTAS 2007 Conference},
  editor       = {Jean-Louis, Viovy and Tabeling, Patrick and Descroix, Stephanie and Malaquin, Laurent},
  isbn         = {978-0-9798064-0-7},
  language     = {eng},
  pages        = {1046--1047},
  publisher    = {Chemical and Biological Microsystems Society},
  title        = {Ultrahydrophobic properties of porous silicon for surface based bioanalysis},
  volume       = {2},
  year         = {2007},
}