The sensor can detect viral disease markers, which appear when the
immune system responds to incurable or hard-to-cure diseases, including
HIV, hepatitis, herpes, and many others.
Researchers have developed a highly sensitive nanomechanical sensor
that can detect cancerous tumours as well as viral disease markers for HIV, hepatitis
and herpes.
Researchers from Moscow Institute of Physics and Technology (MIPT)
developed the ultracompact nanomechanical sensor for analysing the
chemical composition of substances and detecting biological objects.
The sensor can detect viral disease markers, which appear when the
immune system responds to incurable or hard-to-cure diseases, including
HIV, hepatitis, herpes, and many others. The sensor will also enable
doctors to identify tumour markers, whose presence in the body signals
the emergence and growth of cancerous tumours.
The highly sensitive sensor will allow for diagnosing diseases long
before they can be detected by any other method, which will pave the way
for a new-generation of diagnostics, researchers said. Calculations
done by the researchers, Dmitry Fedyanin and Yury Stebunov, showed that
the new sensor will combine high sensitivity with a comparative ease of
production and miniature dimensions, allowing it to be used in all
portable devices, such as smartphones, wearable electronics, etc.
One chip, several millimetres in size, will be able to accommodate
several thousand such sensors, configured to detect different particles
or molecules, researchers said. The device, described in a study
published in the journal Scientific Reports, is an optical or, more
precisely, optomechanical chip.
"We've been following the progress made in the development of micro-
and nanomechanical biosensors for quite a while now and can say that no
one has been able to introduce a simple and scalable technology for
parallel monitoring that would be ready to use outside a laboratory,"
the researchers said. "So our goal was not only to achieve the high
sensitivity of the sensor and make it compact, but also make it
scalabile and compatibile with standard microelectronics technologies,"
researchers said.
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