Non-labeling immunoassay based on zeta-potential analysis

Eun Hang Lee, Yong Hee Lee, Jae Chul Pyun

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


Immunoassay has been widely used for the detection of target analytes in complex mixtures such as blood by using highly specific antigen-antibody interactions. In this work, antibodies against a target analyte was immobilized to magnetic beads and the change of surface charge of magnetic beads were measured after the binding of target proteins by using a zeta potential analyzer. For the feasibility test of the zeta potential analysis, horseradish peroxidase (HRP) was used as a model target analyte. The application to medical diagnosis was demonstrated by detection of C-reactive protein (CRP) which is known to be a biomarker for inflammatory diseases.

Original languageEnglish
Pages (from-to)1023-1024
Number of pages2
JournalProcedia Engineering
Publication statusPublished - 2012
Event26th European Conference on Solid-State Transducers, EUROSENSOR 2012 - Krakow, Poland
Duration: 2012 Sept 92012 Sept 12

All Science Journal Classification (ASJC) codes

  • Engineering(all)


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