Nanoparticle sensor for accurate measurement

Accurate measurement of nanoparticle sensors comes out. When you walk into a department store, you will easily find that there are many "nano" labels on the shelves of commodities, such as nanoparticle deodorant socks, cosmetics, nano makeup remover, sunscreen Anti-graffiti coatings, home pregnancy detectors, plastic beer bottles, antibacterial door handles, plastic vegetable bags, and a full range of more than 800 kinds of nano-products. Today, there are countless nanotechnology products in the world every day, we can't help but ask: are these products really safe? With this question in mind, a team of researchers at the University of Washington is designing an instrument to assess the impact of nano-products on the human body and the environment before it is officially put on the market. The research team led by Lan Yang, associate professor of the Department of Electrical and Systems Engineering, has invented a new type of sensor mounted on the chip --- ultra-high-Q microresonator, which is in the "echo The "whispering-gallery microresonator" mode has undergone technological improvements. The researchers hope to use this sensor to accurately measure the size of individual nanoparticles (less than 100 micrometers in diameter) in motion. The whispering wall sensor is a new type of detection instrument based on the "whispering wall mode dielectric resonator". When you are standing under the dome of St. Pauls Cathedral, the most famous echo wall in the world, close your body to the wall and talk gently to the wall. People who lean on the opposite wall are likely to be able to Hear what you say. The reason is that the sound rebounds along the wall. This process can ensure the maximum energy of the sound, so even two people who are far apart can hear each other's voices while standing on both sides of the wall. Of course, if you speak at a normal volume, the other party may not be able to hear clearly. Because the propagation of sound is not one-way, it crosses right and wrong on the roof, and when it reaches the ear of the other party, it may sound mixed.

D-Arginine

D-arginine has an important role in the medical and pharmaceutical industries, as it is used to treat and relieve hypertension, inhibit the spread of cancer, and relieve the excessive and rapid secretion of growth hormone. In addition, D-arginine is also widely used in basic biochemical research, for example, it can be used as a component of peptides, proteins and drugs as well as involved in some biocatalytic reactions.

D-arginine,D-Arg-OH,157-06-2,C6H14N4O2

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