Determination of Gold Ions in Human Urine Using Genetically Engineered Microorganisms on a Paper Device

  • Kai Hong Guo
  • , Pei Hsuan Chen
  • , Chieh Lin
  • , Chien Fu Chen
  • , I. Ren Lee
  • , Yi Chun Yeh*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

This paper presents a whole-cell biosensor that operates in conjunction with a smartphone-based fluorescence diagnostic system on a paper device to monitor the concentration of gold ions in human urine. The heavy metal-tolerant bacteria Cupriavidus metallidurans was genetically engineered for use as a chassis in a red fluorescent protein (RFP)-based microbial sensor. The biosensor is highly sensitive to gold ions, with a detection limit of 110 nM. The proposed smartphone-based analysis system provides a user-friendly approach to design tools of personal health monitoring for reporting the presence of gold ions in human urine.

Original languageEnglish
Pages (from-to)744-748
Number of pages5
JournalACS Sensors
Volume3
Issue number4
DOIs
Publication statusPublished - 2018 Apr 27

Keywords

  • Cupriavidus metallidurans
  • cueR
  • paper device
  • smartphone-based diagnostic system
  • whole-cell biosensor

ASJC Scopus subject areas

  • Bioengineering
  • Instrumentation
  • Process Chemistry and Technology
  • Fluid Flow and Transfer Processes

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