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

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.

A chemiluminescent platform for smartphone monitoring of H 2 O 2 in human exhaled breath condensates

“…The key implementation challenge is designing effective analytical assays that can interface and be accurately and sensitively read with a smartphone device. Indeed, connecting mobile phone cameras with low-cost excitation sources and band-pass optical filters has enabled fluorescence detection and imaging of pathological biomarkers including C-reactive protein [26], immunoglobin G [27], food allergens [28], pH [29], E. coli [30], thyroid stimulating hormone [31], M. tuberculosis [32,33], β-galactosidase [34], and blood cells [35]. These innovative designs have dramatically empowered the analytical capabilities of mobile phone technology, yet many of the accessories require external power sources, multiple parts, and optical filters.…”

Development the method of organizing a secure data channel in the water supply monitoring system

“…Кожен спостерігач налаштовано на виявлення тільки одного типу атаки, що є економічно вигідним у порівнянні з іншими методами. У статі [7] приведено структуру системи визначення pH води у реальному часі за допомогою передачі даних по GSM. Використано смартфони для збору даних з датчиків pH.…”

Protein, enzyme and carbohydrate quantification using smartphone through colorimetric digitization technique

“…With such multidimensional features it can be envisaged that smartphones have the potentials to offer compact, portable and robust analytical hub architecture for wide range of sensing applications . The built‐in sensors and the latest technology of the smartphones have encouraged different research groups around the world to develop smartphones into optical microscope , fluorescence microscope , spectrometer , optofluidic , microfluidic devices , blood pulsation measuring tool , tubidity meter , interference sensor , pH sensor and other different types of imaged‐based biodetection systems . The colorimetric response of noble metal nanoparticles has been recorded using smartphone's camera and correlated with mercury concentration , codeine sulphate and vitamin D quantification .…”