Quantum dots synthesized from tea leaves may become a new direction of nanomedicine

The future of medicine will be inextricably linked with nanotechnology. One of the facts confirming this thesis is the successful use of quantum dots for the treatment of serious diseases.

Quantum dots are nanoparticles made from any semiconductor material that, when exposed to light, begin to glow in a specific color. Their size is from 2 to 5 nanometers. In comparison, the antibodies produced by our immune systems to fight viruses are twice as large, and human hair is just a giant, 10, 000 times larger than quantum dots. Recently, scientists working in the field of nanomedicine have become interested in their unique properties.

A team of researchers at Swansea University (Wales) has found a way to obtain quantum dots from an extract of the leaves of the Chinese camellia (Camelia sinensis), or, more simply, tea. The use of tea leaf extract makes the production process cost effective and completely safe. In the course of experiments, it was found that quantum dots are able to penetrate into the tiny pores of the outer membrane of skin cancer cells and stop their growth. From the entire array of cancer cells in the Petri dish, the points managed to block the development of 80% of their number.

The first results of the research mean that two major problems have already been solved: the new technology is not expensive, and, moreover, it is completely safe.