A smartphone device could help millions of people avoid drinking water contaminated by arsenic.
Researchers have developed a biosensor that attaches to a phone and uses bacteria to detect unsafe arsenic levels.
The device, developed at the University of Edinburgh, generates easy-to-interpret patterns, similar to volume-bars, which display the level of contamination.
Researchers believe there is an urgent need to provide simple, affordable, on-site solutions for contaminated water sources.
In resource-limited countries, there is a lack of sufficiently skilled personnel and healthcare facilities to test water for contamination.
Researchers say new devices could replace existing tests, which are difficult to use, need specialist laboratory equipment and can produce toxic chemicals.
We tested our sensors with samples from wells in a village in Bangladesh. The arsenic levels reported by the sensors was consistent with lab-based standard tests, demonstrating the device’s potential as a simple low-cost-use monitoring tool.
Global health issue
The contamination of water by heavy metals is a worldwide health issue. UNICEF reports that arsenic contaminated drinking water is consumed by more than 140 million people worldwide.
Researchers tested the arsenic sensors using environment samples from affected wells in Bangladesh, which suffers from some of the world’s highest levels of arsenic-contaminated ground water.
An estimated 20 million people in Bangladesh – mostly rural poor – drink contaminated water.
Long-term exposure to unsafe levels of arsenic leads to skin lesions and cancers and is linked to 20 per cent of all deaths in the worst-affected regions.
Researchers developed the biosensor by manipulating the genetic code of the bacteria Escherichia coli. They added genetic components to act as amplifiers when arsenic is detected.
Water samples were fed into a plastic device containing bacteria suspended in a gel. This produced fluorescent proteins that were visible in the presence of arsenic.
Researchers believe that the approach could be used to detect other environmental toxins, diagnose diseases and locate landmines.
Learn more: Smartphone test spots poisoned water risk
The Latest on: Biosensor
via Google News
The Latest on: Biosensor
- Dual action biosensor promising as airborne SARS-CoV-2 spotteron May 9, 2020 at 2:27 am
(Reuters Health) - A dual-functional localized surface plasmon resonance (LSPR) biosensor combining a photothermal effect in concert with plasmonic sensing transduction shows promise as the basis for ...
- PhysIQ, Department of Defense, and The Henry M. Jackson Foundation for the Advancement of Military Medicine Partner to Deploy Continuous Remote Monitoring Platform to Study ...on May 7, 2020 at 6:16 am
PhysIQ, the Department of Defense, and The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. (HJF), in conjunction with the J ...
- Biosensor for COVID19 Market Size 2020 by Manufacturers, Type, Application, Regions and Market Growth to 2026on May 6, 2020 at 3:42 am
Final Report will add the analysis of the impact of COVID-19 on this industry." “Biosensor for COVID19 Market” ...
- Imec and Roswell Biotechnologies to develop molecular electronics biosensor ICson May 5, 2020 at 10:24 pm
Imec and molecular electronics sensor chip specialist, Roswell Biotechnologies, are partnering to develop the first commercially available molecular electronics biosensor chips. These chips are the ...
- Roswell Biotechnologies and Imec to Develop First Molecular Electronics Biosensor Chips for Infectious Disease Surveillanceon May 5, 2020 at 2:10 pm
Roswell Biotechnologies and Imec to Develop First Molecular Electronics Biosensor Chips for Infectious Disease Surveillance, Precision Medicine and DNA Storage. Roswell Biotechnologies, Inc., the ...
- Biosensor :Why Market Giants Spending is on Rise | Abbott, Medtronic, Siemens, Aconon May 5, 2020 at 1:13 pm
Global Biosensor Market Research Report 2020 is latest research study released by HTF MI evaluating ...
- FDA clears heart monitor for coronavirus patients using hydroxychloroquineon May 5, 2020 at 12:41 pm
A wearable patch can monitor a patient who has been treated for COVID with hydroxychloroquine, a drug that can cause serious, even deadly, heartbeat issues.
- FDA Grants Emergency Use Authorization to VitalConnect for Cardiac Monitoring in COVID-19 Patientson May 5, 2020 at 8:00 am
VitalConnect®, Inc., a leader in wearable biosensor technology, announced it was granted Emergency Use Authorization (EUA) status by the ...
- TRUPATH, an open-source biosensor platform for interrogating the GPCR transduceromeon May 4, 2020 at 8:25 am
G-protein-coupled receptors (GPCRs) remain major drug targets, despite our incomplete understanding of how they signal through 16 non-visual G-protein signal transducers (collectively named the ...
- Graphene Biosensor Developed for Rapid COVD-19 Testingon April 29, 2020 at 6:46 am
The publication in journal ACS NANO: Rapid Detection of COVID-19 Causative Virus (SARS-CoV-2) in Human Nasopharyngeal Swab Specimens Using Field-Effect Transistor-Based Biosensor ...
via Bing News