Photoelectrochemistry with controlled DNA-cross-linked CdS nanoparticle arrays

Itamar Willner*, Fernando Patolsky, Julian Wasserman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Photochemical detection of a nucleic acid was achieved by means of a DNA-cross-linked CdS nanoparticle array attached to an electrode (see schematic diagram). The array was constructed from the target DNA (blue) and SdS nanoparticles bearing oligonucleotides complementary to its 3′-(green) and 5′-ends (red). The photocurrent generated on irradiation of the array increases with increasing concentration of the target.

Original languageEnglish
Pages (from-to)1861-1864
Number of pages4
JournalAngewandte Chemie - International Edition
Issue number10
StatePublished - 18 May 2001
Externally publishedYes


  • Biosensors
  • DNA recognition
  • Nanostructures
  • Photoelectrochemistry


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