Chiral discrimination using an immunosensor

Oliver Hofstetter, Heike Hofstetter, Meir Wilchek, Volker Schurig, Bernard S. Green*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

105 Scopus citations

Abstract

Based on the stereoselectivity of immunoglobulins, we have developed a new chiral sensor for the detection of low-molecular-weight analytes. Using surface plasmon resonance detection, enantiomers of free, underivatized α- amino acids can be monitored in a competitive assay by their interaction with antibodies specific for the chiral center of this class of substances. The sensitivity to the minor enantiomer in nonracemic mixtures exceeds currently available methods; therefore, such immunosensors can readily detect traces of enantiomeric impurities and are attractive for a range of applications in science and industry.

Original languageEnglish
Pages (from-to)371-374
Number of pages4
JournalNature Biotechnology
Volume17
Issue number4
DOIs
StatePublished - Apr 1999

Keywords

  • Amino acid
  • Applied immunology
  • Chiral sensor

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