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Revision as of 07:19, 10 October 2018
Hometown Hangzhou is widely known by water- related UNESCO World Heritages – West Lake and Grand Canal, however, severe water
pollution problem caused by many reasons also exist. Hence, we hope to provide an easy-operating
and low-cost tool for public to monitor water quality around.
We designed a portable water quality bio-detector prototype based on E.coli strains which were constructed to detect dissolved
oxygen, phosphorus or nitrogen in water respectively. The oxygen sensitive vgb promoter and a GFP
reporter constitute Oxygen detector 1.0. To enhance the expression of GFP, version 2.0 contains a
vgb promoter, a T7 RNA polymerase gene, a T7 promoter and a GFP gene. For nitrogen, the PyeaR promoter
was used to response to different concentrations of nitrate, nitrite and nitric, with a BFP reporter
gene. For phosphate, a plasmid consisting of an ‘external phosphate sensing promoter’ to sense the
phosphate concentration and a RFP gene to report.
Hometown Hangzhou is widely known by water- related UNESCO World Heritages – West Lake and Grand Canal, however, severe water
pollution problem caused by many reasons also exist. Hence, we hope to provide an easy-operating
and low-cost tool for public to monitor water quality around.
We designed a portable water quality bio-detector prototype based on E.coli strains which were constructed to detect dissolved
oxygen, phosphorus or nitrogen in water respectively. The oxygen sensitive vgb promoter and a
GFP reporter constitute Oxygen detector 1.0. To enhance the expression of GFP, version 2.0 contains
a vgb promoter, a T7 RNA polymerase gene, a T7 promoter and a GFP gene. For nitrogen, the PyeaR
promoter was used to response to different concentrations of nitrate, nitrite and nitric, with
a BFP reporter gene. For phosphate, a plasmid consisting of an ‘external phosphate sensing promoter’
to sense the phosphate concentration and a RFP gene to report.
Abstract
Abstract
