Researchers Develop Low Cost Sensors to Monitor Health Conditions

Published By : 25 Jun 2018 | Published By : QYRESEARCH

A team of researchers from the University of Cambridge and Saudi Arabia’s King Abdullah University of Science and Technology have collaborated to develop semiconducting plastic based sensor that can be used to monitor or diagnose a number of vital health statistics, including neurodegenerative diseases and surgical complications. The sensors have the ability to measure the volume of critical metabolites such as glucose and lactate found in the saliva, tears, blood, and sweat.

With a strikingly simpler designing that that of traditional sensors, these new sensors have the ability to monitor health conditions at the cellular level. The researchers have noted that semiconducting plastics that are used by flexible electronics and solar cells can also be used for biological applications. According to Dr. Anna-Maria Pappa, the lead author of the study, the researchers have overcome several limitations of that of conventional electrochemical biosensors which use enzymes to sense material. It was detected that conventional sensors are not adequately efficient at sensing material and they have added molecular wires in order to boost the signs.

Imperial College had recently synthesized a polymer that acts are the molecular wire in this sensor, performing efficiently with its ability to accept electrons that are generated during electrochemical reactions. When this material collides with liquid such as tears, sweat, and blood, ions are absorbed and swells, which makes them easy to identify. With a complex circuit system, and incorporated with transistor, the signals are amplified and responds despite miniature size of the device.

The first prototypes of the sensors have resulted positive in measuring the levels of lactate, which can be highly useful for fitness applications post surgeries.

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