Label-free pathogen detection with sensor chips assembled from peptide nanotubes

Roberto De La Rica, Ernest Mendoza, Laura Lechuga, Hiroshi Matsui

Research output: Contribution to journalArticlepeer-review

61 Citations (Scopus)


A robust viral sensor was developed by bridging a pair of gold electrodes with antibody-coated peptide nanotubes. The nanotubes concentrated the target virus on their surface by molecular recognition between the antibody and the virus (see picture). The nanotubes fit perfectly within the electric field line distribution to enable the extremely sensitive impedimetric detection of viral particles.
Original languageEnglish
Pages (from-to)9752–9755
Number of pages4
JournalAngewandte Chemie International Edition
Issue number50
Early online date6 Nov 2008
Publication statusPublished - 1 Dec 2008


  • peptide
  • label-free
  • pathogen detection
  • sensor chips
  • sensors
  • viruses
  • bionanotechnology
  • peptide nanotubes
  • self-assembly

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