Bio‐inspired photonic‐crystal microchip for fluorescent ultratrace detection

Jue Hou, Huacheng Zhang, Qiang Yang, Mingzhu Li, Yanlin Song, Lei Jiang

Research output: Contribution to journalArticleResearchpeer-review

189 Citations (Scopus)


Ultratrace detection attracts great interest because it is still a challenge to the early diagnosis and drug testing. Enriching the targets from highly diluted solutions to the sensitive area is a promising method. Inspired by the fog-collecting structure on Stenocara beetles back, a photonic-crystal (PC) microchip with hydrophilic–hydrophobic micropattern was fabricated by inkjet printing. This device was used to realize high-sensitive ultratrace detection of fluorescence analytes and fluorophore-based assays. Coupled with the fluorescence enhancement effect of a PC, detection down to 10-16 mol L-1 was achieved. This design can be combined with biophotonic devices for the detection of drugs, diseases, and pollutions of the ecosystem.
Original languageEnglish
Pages (from-to)5791-5795
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number23
Publication statusPublished - 2 Jun 2014
Externally publishedYes


  • Cocaine
  • Enrichment
  • Fluorescence enhancement
  • Photonic crystals
  • ultratrace detection

Cite this