Journal
BIOTECHNOLOGY AND BIOENGINEERING
Volume 99, Issue 6, Pages 1513-1517Publisher
WILEY
DOI: 10.1002/bit.21718
Keywords
promoter; sensorchip; microfluidics; HSP70; GFP
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We report here a live cells-based sensorchip fabricated in microfluidic channels in which several laminar flows were achieved. In addition, we established a cytotoxic sensor cell line, which was transfected with a green fluorescence protein (GFP) plasmid derived from the heat shock protein 70B' (HSP70B') promoter, which is induced by cytotoxic reagents. The fluorescence in the sensor cells increased in a CdCl2 dose-dependent manner in the microfluidic channels. In this system, cytotoxic reagents can be quantitatively detected in a quick, sensitive and high-throughput manner. The combination of sensor cells and microfluidic systems will provide an important basis for the development of micro-total analysis systems (mu-TAS) technology, and can be applied to toxicology, environmental assessment and drug screening.
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