Nanoporous-micropatterned-superhydrophobic surfaces as harvesting agents for few low molecular weight molecules

F. Gentile*, M. L. Coluccio, A. Accardo, M. Asande, G. Cojoc, F. Mecarini, Gobind Das, Carlo Liberale, F. De Angelis, P. Candeloro, P. Decuzzi, Enzo Di Fabrizio

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Superhydrophobic surfaces were fabricated comprising cylindrical micro-pillars arranged in a regular hexagonal lattice. These structures are hierarchical in that the pillars incorporate, on the top, nanoporous silicon films. In sight of the superhydrophobicity of the system, the devices retain the ability of manipulating and concentrating diluted biological solutions, while, on account of the nanoporous films, they would efficiently filter the biological content of such solutions. The major advance, here, is the simultaneous use of the properties above, and thus important applications are envisioned where extremely small quantities of bio-markers are efficiently extracted from serum and analyzed employing conventional and well assessed spectroscopy techniques. Ultra low concentrated small Rhodamine molecules were here efficiently analyzed using FTIR spectroscopy techniques, thus demonstrating that these devices are effective.

Original languageEnglish (US)
Pages (from-to)1749-1752
Number of pages4
JournalMicroelectronic Engineering
Volume88
Issue number8
DOIs
StatePublished - Aug 1 2011

Keywords

  • Cancer
  • Early detection
  • Low molecular weight molecules harvesting
  • Nanoporous silicon
  • Superhydrophobic surfaces

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering

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