Abstract
Low-priced bacterial sensors for testing different water contamination have the potential to save millions of lives. The present study reports a membrane-based kit (strip) that comprises tetrazolium dye and a carbon source for the detection of live bacteria in any kind of water source. Color change is observed on the strip when dipped into water containing bacteria that allows visual detection of contamination without the need of any expensive instruments. The strip efficiently estimated different concentrations of E. coli in the water on the basis of time taken to change the color. The results thus obtained supported that membrane-based strip could quantify live bacteria present in a variety of water samples. The kit also successfully worked in various environmental water samples (pond, sea, ground and municipal water) which may improve its acceptability by different end users such as in aquaculture industry, swimming pool and domestic/municipal water etc. These strips exhibit a feasible manufacturing approach for low-cost bacterial detection in majority of water sources.
Published Version
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