Nanomaterials

Stealth-cap Technology for Light-emitting Nanoparticles

According to reports, the special light-emitting nanoparticles can be boosted significantly in terms of stability and their biocompatibility features. This is after a successful development of “upconverting” nanoparticles by scientists from Monash University in Australia in Conjunction with those from Helmholtz-Zentrum Dresden-Rossendorf.

The team has developed converting nanoparticles that can successfully convert infrared light to the UV-visible light. The nanoparticles are water soluble with the ability to retain stability in the various body fluids. A feature that may help in the coming days as they are capable of storing medication in the blood serum.
The concentration of the particles in the body varies with size and surface properties. According to Dr.Joshi from the Institute of Radio Pharmaceutical Cancer Research, the upconverted nanoparticles raise a great interest in the field of biomedical imaging. When they undergo stimulation from the infrared light they tend to emit green blue or red signals. Massimo the team’s photo chemist suggests this may prove important in cancer diagnosis with the ability to navigate nanoparticles on the affected tissues.

Nanoparticles are irradiated with UV light by photochemical connecting the components of the protective shell together. This helps increase the lifespan of the new stable nanoprobes. Irradiating the particles also creates additional bonds in the molecular structure component that help make up the protective cover resemble individual parts of the invisible cloth with the help of light. The thickness of the shell in terms of nanometers can aid in masking substances like anti-cancer drugs which may prove fatal if released on the tumors.

Dr.Holger Stephan said the team is yet to experiment on living organisms. After which it will come with acceptable results. If the results have no side-effects the procedure will be undertaken in the future for the patients thus a great breakthrough.