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
- Rapid Testing: In Belize Since Onset of COVID-19on October 7, 2021 at 5:00 pm
In June of 2020, there were concerns about the sensitivity of rapid tests when we learnt that some persons who tested negative for COVID19 abroad, using a rapid test prior to entering Belize, tested ...
- Graphene biosensor in a portable and wireless device for rapid SARS-CoV-2 detectionon October 5, 2021 at 5:00 pm
A research group from Italy and the United States proposed a graphene field-effect transistor (gFET) biosensor that takes advantage of a critical interaction between the spike glycoprotein of the ...
- Could a New Biosensor Be Able to Smell Cancer?on October 4, 2021 at 5:00 pm
The new biosensor technology was designed to work with a digital platform that can measure the human sense of smell and taste by placing olfactory receptors from the nose onto a disposable biochip ...
- ABCDx, Precision Biosensor Partner to Develop Point-of-Care Acute Brain Stroke Teston October 1, 2021 at 9:00 am
The companies were recently awarded a €2.4 million Eurostars grant to support the development and validation of the assay.
- Tracking muscle activity with clothes on your backon September 29, 2021 at 5:32 am
The biosensor, made of silver paste with a layer of gold nanoparticles on top, is directly integrated onto a piece of clothing. The result was a detector that was both conductive and nonirritating ...
- Smart Biosensor Market Share 2021 CAGR Value, Top Manufacturers, Growth Opportunities, Future Trends, Industry Size and Forecast to 2027on September 28, 2021 at 11:59 am
Top Manufacturers covered in Smart Biosensor Market are Abbott Point of Care Inc., Medtronic Inc., Hoffman La-Roche Ltd., Siemens Healthcare AG, Lifescan, Inc ...
- New biosensor for isolation patients launched in GRHon September 25, 2021 at 2:47 pm
Both were speaking at the launch of a wireless patient monitoring biosensor, called LifeSigns, that could be useful in treating patients with infectious diseases that require isolation.
- Glucose Biosensor Market Report 2021: Increased Investments, Product Launches, and Collaborations to Spur Growth – Forecast to 2026on September 14, 2021 at 9:46 am
Sep 14, 2021 (Heraldkeepers) -- The scope of the report includes a detailed study of Glucose Biosensor Marketwith the reasons given for variations in the growth of the industry in certain regions.
- At 9.6% of CAGR Cell Culture Monitoring Biosensor Market Share Touch US$ 332.0 million in 2020 and Forecasted to 2027on September 14, 2021 at 3:30 am
An electrochemical biosensor is an integrated device that provides accurate analytical information (quantitative or semi-quantitative) by using a biochemical receptor. The biochemical receptor, for ...
- Glucose Biosensor Market, Which will hit USD 3,632.7 Million By 2030 at 1.5% CAGR-Market.Bizon September 13, 2021 at 6:38 am
Glucose Biosensor Market Scope and Analysis: Market.Biz provides a clear and comprehensive description of Glucose Biosensor Market Key Trends, Value Chains, Supply Chain Analysis, and Compound ...
via Bing News