Researchers at Brown University say that they have developed a device which could mean diabetics would be able to test their glucose levels through saliva rather than regular glucose testing.
The biochip uses plasmonic interferometers and could be used to test a number of substances including levels of glucose.
Engineers at Brown University were able to achieve this by etching plasmonic interferometers onto a microchip and then measured the concentrations of glucose on the chip. The test results showed that the chip could "could detect glucose levels similar to the levels found in human saliva". The amount of glucose contained in saliva is 100 times more concentrated than in blood, according to researchers from Brown University.
Domenico Pacifici, assistant professor of engineering and lead author of the paper published in Nano Letters, a journal of the American Chemical Society, said:
“This is proof of concept that plasmonic interferometers can be used to detect molecules in low concentrations, using a footprint that is ten times smaller than a human hair."
Further testing is now planned and biochips and sensors especially tailored to measure for glucose will be used.
It is early days and at the moment there is no news on how long it will be before the sensor could be tested by diabetics.
The biochip uses plasmonic interferometers and could be used to test a number of substances including levels of glucose.
Engineers at Brown University were able to achieve this by etching plasmonic interferometers onto a microchip and then measured the concentrations of glucose on the chip. The test results showed that the chip could "could detect glucose levels similar to the levels found in human saliva". The amount of glucose contained in saliva is 100 times more concentrated than in blood, according to researchers from Brown University.
Domenico Pacifici, assistant professor of engineering and lead author of the paper published in Nano Letters, a journal of the American Chemical Society, said:
“This is proof of concept that plasmonic interferometers can be used to detect molecules in low concentrations, using a footprint that is ten times smaller than a human hair."
Further testing is now planned and biochips and sensors especially tailored to measure for glucose will be used.
It is early days and at the moment there is no news on how long it will be before the sensor could be tested by diabetics.
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