Polydiacetylene mixed poly(ethylene oxide) and polyurethane nanofibers in mat
form to fabricate a colorimetric sensor for E. Coli Bacteria. The detailed schematics
is shown in Fig. 7. The color of the nanofiber mat changed from blue to red
immediately on exposure to bacteria.
4 Conclusion
Water is of utmost importance for the existence of our ecosystem on earth and
hence it is of utmost importance to monitor its purity and save it from being
contaminated. In order to enact efficient remediation technique, it is imperative to
assess or diagnose the pollutant concentration in water as well as the type of
pollutant. The role of material is extremely important for water pollutant monitoring. Amongst multiple available alternatives, nanomaterials offer greater potential to be applied as a sensor material. In the present chapter, we have reviewed the
application of Nanofibers as a sensing material for water contamination. Nanofibers
have been utilized for fabricating different kinds of sensor like electrochemical,
fluorescent, colorimetry, SERS etc. Different aspects and variety of nanofibers have
been presented vis-à-vis the type of contaminant which they can detect in water.
The nanofibers provide advantage in the form of a high surface area and
surface-active material, easier and economical fabrication, as well as field utilization of sensors. They are an attractive and viable material for the fabrication of
futuristic sensing devices for water pollutant monitoring.
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