An ultrasensitive and incubation-free electrochemical immunosensor using a gold-nanocatalyst label mediating outer-sphere-reaction-philic and inner-sphere-reaction-philic species

Chiew San Fang, Kyung Hwan Oh, Aram Oh, Kwangyeol Lee, Seonhwa Park, Sinyoung Kim, Jin Kyoon Park, Haesik Yang

Research output: Contribution to journalArticle

14 Citations (Scopus)


This communication reports a new nanocatalytic scheme based on the facts that the redox reaction between a highly outer-sphere-reaction-philic (OSR-philic) species and a highly inner-sphere-reaction-philic (ISR-philic) species is slow and that an OSR- and ISR-philic Au-nanocatalyst label can mediate the two different types of redox species. This scheme allows highly sensitive and incubation free detection of creatine kinase-MB.

Original languageEnglish
Pages (from-to)5884-5887
Number of pages4
JournalChemical Communications
Issue number34
Publication statusPublished - 2016 Apr 30


ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis
  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Materials Chemistry
  • Metals and Alloys

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