Classical strong metal-support interaction (SMSI) describes that reducible oxide migrates to the surface metal nanoparticles (NPs) to obtain metal@oxide encapsulation structure during high-tempera .
Their small size allows them to bypass many of the body’s natural defence mechanisms, such as the filtering action of the nose and the mucus lining of the respiratory tract, says Dr Suranjit Chatterjee, Senior Consultant, Internal Medicine, Indraprastha Apollo Hospitals, New Delhi
Quantum dots (QDs), a phenomenon in quantum physics that alters the energy of electrons and changes the properties of particles, caught the attention of the Royal Swedish Academy of Sciences (KVA) for the 2023 Nobel Prize in Chemistry. Alexei Ekimov and Louis Brus received the award for their discovery; Moungi Bawendi, for developing its applications. With their work, “in equal shares,” said the Secretary General of KVA Hans Ellegren, the three scientists have laid the foundations of nanotechnology, a tool that we see today in our homes, on televisions and LED lamps, or in laboratories and hospitals for designing new drugs or new strategies against cancer.
The study analysed nanoparticles (10 to 1090 nanometers in diameter) in the city in 2021, over two periods from April to June, and October to November. These “very small particles” may come from natural sources or from human activities.