A nanostructured material for creating ultrasensitive detectors of helical molecules has been developed at the St. Petersburg National Research University (ITMO). This was reported by the university's press service.
The development of scientists can be used to increase the speed of obtaining results of chemical and biological analyzes and improve the quality of telecommunications. It also opens up new opportunities for conducting experiments when working with twisted particles, such as electrons.
Researchers have found that metasurfaces with the desired properties can be created using ordinary glass and silicon nanoparticles of elliptical shape.
We were able to combine two types of resonances by reflection from the glass on which the nanoparticles are located. As a result, both types of resonances amplify each other, and the structure becomes an ideal mirror for light with one circular polarization and perfectly transparent for the second.
The development will make it possible to detect molecules of DNA, sugar, chloramphenicol and many other drugs. The discovery will also find application in the creation of new methods of optical information transmission, biomedical devices and sensors.
Earlier www1.ru reported that in Tomsk synthesized nanocomposites for the treatment of atherosclerosis.
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