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 language | English |
|---|---|
| Pages (from-to) | 744-748 |
| Number of pages | 5 |
| Journal | ACS Sensors |
| Volume | 3 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 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