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Effect of butanol and salt concentration on solid-state nanopores resistance

Vega, M., Perez, M. S., Granell, P., Golmar, F., Wloka, C., Maglia, G., Dieguez, M. J., Del Valle, E. M., Lasorsa, C. & Lerner, B., 2016, In : Cogent chemistry. 2, 9 p., 1225345.

Research output: Contribution to journalArticleAcademicpeer-review

  • M. Vega
  • M. S. Perez
  • P. Granell
  • F. Golmar
  • C. Wloka
  • G. Maglia
  • M. J. Dieguez
  • E. M. Del Valle
  • C. Lasorsa
  • B. Lerner

The objective of this study was to demonstrate the possibility of using 1-butanol to reliably detect the open-pore current of pyramidal solid-state nanopores produced in silicon wafers. The nanopores were produced through controlled pore formation by neutralizing an etchant (KOH) with a strong acid (HCl). Since nanopores produced by this method are deeper than those made in nanometer-thick membranes, they behave as nanochannels. As a consequence, the open-pore current detection is more challenging. Thus, we report that low amounts of butanol considerably aid in the detection of the open-pore current of nanopores.

Original languageEnglish
Article number1225345
Number of pages9
JournalCogent chemistry
Volume2
Publication statusPublished - 2016

    Keywords

  • solid-state nanopores, silicon wafer, resistance, butanol, DNA TRANSLOCATION, FABRICATION, DEPENDENCE, TRANSPORT, CHANNELS, LOCATION, PROTEIN

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