Photonic Sensors

, Volume 5, Issue 4, pp 289–297 | Cite as

Early warning smartphone diagnostics for water security and analysis using real-time pH mapping

  • Md. Arafat Hossain
  • John Canning
  • Sandra Ast
  • Peter J. Rutledge
  • Abbas Jamalipour
Open Access
Regular

Abstract

Early detection of environmental disruption, unintentional or otherwise, is increasingly desired to ensure hazard minimization in many settings. Here, using a field-portable, smartphone fluorimeter to assess water quality based on the pH response of a designer probe, a map of pH of public tap water sites has been obtained. A custom designed Android application digitally processed and mapped the results utilizing the global positioning system (GPS) service of the smartphone. The map generated indicates no disruption in pH for all sites measured, and all the data are assessed to fall inside the upper limit of local government regulations, consistent with authority reported measurements. This implementation demonstrates a new security concept: network environmental forensics utilizing the potential of novel smartgrid analysis with wireless sensors for the detection of potential disruption to water quality at any point in the city. This concept is applicable across all smartgrid strategies within the next generation of the Internet of Things and can be extended on national and global scales to address a range of target analytes, both chemical and biological.

Keywords

Lab-in-a-phone Internet of Things optical sensing and sensor smartphone sensor photonic sensor fluorescence water security 

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Copyright information

© The Author(s) 2015

Authors and Affiliations

  • Md. Arafat Hossain
    • 1
    • 3
  • John Canning
    • 1
    • 2
  • Sandra Ast
    • 2
  • Peter J. Rutledge
    • 2
  • Abbas Jamalipour
    • 3
  1. 1.interdisciplinary Photonics Laboratories (iPL), School of ChemistryThe University of SydneySydneyAustralia
  2. 2.School of ChemistryThe University of SydneySydneyAustralia
  3. 3.Wireless Networking Group (WiNG), School of Electrical and Information EngineeringThe University of SydneySydneyAustralia

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