Gwangju Institute of Science and Technology Researchers Detect Coronavirus Particles with “Slow Light” | News

The novel detection system is rapid, accurate, and performs label-totally free imaging of virus particles by slowing down mild

GWANGJU, South Korea, April 21, 2022 /PRNewswire/ — Despite all the negative news the COVID-19 pandemic brought on the globe, it has aided us gain a much better point of view of our readiness to fend off remarkably contagious conditions. Quick diagnostic examination kits and PCR testing quickly became vital equipment when the pandemic strike, helping with well timed diagnoses. Even so, these equipment have inherent restrictions. PCR tests are elaborate and require high-priced tools whilst fast diagnostic take a look at kits have decreased precision.

Towards this backdrop, a study group led by Professor Youthful Min Tune of the Gwangju Institute of Science and Engineering in Korea has just lately produced a new technique to quickly visualize viruses utilizing an optical microscope. A latest analyze describes in detail the functioning theory of their detection system, named the “Gires–Tournois immunoassay platform” (GTIP). This paper was created out there on the internet on March 22, 2022, and was revealed in the journal State-of-the-art Elements on March 26, 2022.

The essential element of GTIP is the Gires–Tournois “resonance framework,” a movie designed from a few stacked levels of particular components that deliver a peculiar optical phenomenon referred to as “sluggish gentle.” For the reason that of how incident gentle rebounds within the resonant levels right before staying mirrored, the color of the system observed by means of an optical microscope appears very uniform. Nonetheless, nanometer-sized virus particles have an affect on the resonance frequency of GTIP in their quick vicinity by slowing down the light that will get mirrored about them. The “gradual mild” manifests as a vivid colour improve in the mirrored light-weight so that, when viewed through the microscope, the virus particle clusters seem like “islands” of a distinct colour in contrast to the background.

To make certain that their method only detects coronavirus particles, the scientists coated the major layer of GTIP with antibody proteins specific to SARS-CoV-2. Interestingly, not only did the method allow the detection of viral particles, but, by employing colorimetric investigation procedures, the scientists could even successfully quantify the variety of virus particles existing in different parts of a sample relying on the color of the gentle reflected regionally.

The total simplicity of the layout is one of the major selling points of GTIP. As Prof. Track points out, “In contrast to present COVID-19 diagnostic approaches, our method enables swift detection and quantification of SARS-CoV-2 without having needing additional sample treatments, these as amplification and labeling.” Supplied that optical microscopes are readily available in most laboratories, the method created by the group could develop into a beneficial and ubiquitous diagnostic and virus analysis resource.

Also, GTIP is not confined to detecting viruses or strictly dependent on antibodies any other binding agent operates as properly, helping visualize all kinds of particles that interact with light. “Our strategy can even be used for a dynamic monitoring of focus on particles sprayed in the air or dispersed on surfaces. We consider that this tactic could be the foundation for up coming-generation biosensing platforms, enabling easy still precise detection,” concludes Prof. Track.

Enable us hope his eyesight is realized before long so we can be improved prepared for potential pandemics!


Title of primary paper: Gires-Tournois immunoassay system for label-absolutely free brilliant-industry imaging and facile quantification of bioparticles

Journal: Superior Materials


About the Gwangju Institute of Science and Engineering (GIST)

make sure you pay a visit to:

Make contact with: 

Seulhye Kim

82 62 715 6253

[email protected]


Cision See primary information to obtain multimedia:

Source Gwangju Institute of Science and Technologies

Next Post

3 Ways Technology is Continually Making Delivery Services Better and Faster

Even though we are not however at the long run Amazon envisioned for the delivery business (offers delivered by drones), the use of know-how has absolutely served make improvements to different elements of the industry. Both equally prolonged-haul and last-mile deliveries bought to gain from technological breakthroughs, which came in […]