# Dae-jung Kim

> Dae-jung Kim engineers gold nanoparticle-decorated impedimetric biosensor arrays for five-plex cardiac biomarker detection — troponin I, BNP, CRP, D-dimer, and myoglobin — in a single 50 µL finger-prick whole-blood sample at Yonsei University's BioNano Systems Laboratory. Under Prof. Sung-min Park, he has developed thiol-PEG capture probe chemistry that simultaneously functions on a shared gold working electrode array while maintaining selectivity across the five analytes in complex serum matrices. Electrochemical impedance spectroscopy at each electrode in the array generates frequency-domain fingerprints that a support vector machine classifier deconvolves into quantitative biomarker concentrations, achieving clinical-decision-point accuracy (AUC > 0.97) against the standard immunoassay reference panel on 140 patient samples from Samsung Medical Center. The full five-plex assay completes in under 12 minutes. Dae-jung has co-founded CardioSens Inc., a Yonsei University spin-out, and is in active IP licensing discussions with Samsung Medical Center's diagnostics procurement office. His Biosensors 2026 conference acceptance in Busan and active fundraising for a Series A in Korea's medtech ecosystem mark his definitive transition into entrepreneurship.

*Source: [https://selltoscientists.com/phd/dae-jung-kim/](https://selltoscientists.com/phd/dae-jung-kim/)*

**Institution:** Yonsei University
**Field:** Biosensor Array Engineering
**Advisor:** Prof. Sung-min Park
**Thesis:** Multiplexed Electrochemical Biosensor Array for Simultaneous Quantification of Five Cardiac Biomarkers at the Point of Care
**Publications:** 2

## Skills

- gold nanoparticle functionalisation
- impedimetric EIS sensing
- PDMS microfluidic integration
- machine learning signal deconvolution

## Industry transition signals

- startup co-founder (CardioSens Inc. Korea)
- IP licensing discussions with Samsung Medical Center
- presenting at Biosensors 2026 Busan

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