Biosensor Engineering

1. 1SampleDrop river or tap water on a paper strip
2. 2RespondFreeze-dried E. coli wake up and sense the metal
3. 3ReadMagenta appears within 2 hours — no instrument needed

What we detect

Detection targets — analyte, detection limit, readout colour

Target	Limit	Readout
Lead (Pb)	10 µg/L	Magenta
Cadmium (Cd)	3 µg/L	Magenta
Arsenic (As)	10 µg/L	Green, in development

Limits are illustrative sample values.

Recent papers

1. Intl. Journal

   Paper-based whole-cell sensors for lead at drinking-water limits

   ACS Synthetic Biology (fictional)

2. Intl. Conference

   A two-input AND gate for tumour-selective expression

   International Workshop on Bio-Design Automation (fictional)

3. Domestic Journal

   중금속 검출용 종이 기반 전세포 바이오센서의 현장 적용성 평가

   한국미생물·생명공학회지 (가상)

Projects

• Ongoing2025–2028

  A two-input logic gate for tumour-selective expression

  An AND gate that expresses a reporter only when two tumour markers are present at once.

  Funded by Hanbit Bio-Convergence Program (fictional)

• Ongoing2023–2026

  Whole-cell biosensor for heavy metals in river water

  Paper-strip E. coli sensors that turn magenta in the presence of lead and cadmium at regulatory limits.

  Funded by Ministry of Environment R&D (fictional)