Zui micro balance consists of 4 parts
The metal layer (1) is placed on a silicon carbide layer (2) attached to a silicon substrate (3) and a micro-bracket (4)
Sina Technology News Beijing time on February 15th news, according to foreign media reports, scientists have developed a world of zui tiny balance, can weigh the quality of a single molecule in real time. With this small Zui balance, the researchers named the quality of certain protein molecules and gold nanoparticles.
It is understood that the world's small balance of Zui was developed by California Institute of Technology physicist Michael Lukes and his colleagues. Researchers can use this micro-instrument to weigh the mass of a single molecule in real time. The zui small balance can be used for a wide range of purposes. Chemists can use this highly sensitive scale to determine the chemical properties of an unknown substance. The California Institute of Technology research team said that scientists can use this micro-instrument to analyze thousands of proteins in a matter of milliseconds and require fewer samples.
The world's Zui tiny balance developed by scientists is actually a miniature resonator, only 2 microns long and 120 nanometers wide. It consists of four parts. The metal layer (1) is placed on top of a silicon carbide layer (2) attached to a silicon substrate (3) and a micro-frame (4). It works by spraying a solution containing this molecule onto the microresonator when weighing the mass of a molecule. When the molecule "falls" onto the resonator, the vibration mode of the resonator changes. The microresonator is connected to a circuit that records the change in vibration and transmits it to a computer, which then calculates the mass of the molecule. Each time a molecule falls onto a resonator, the mass of one molecule is calculated; at the end of the zui, hundreds of molecules are stacked on the resonator, and the scientists can measure it multiple times to obtain very accurate molecular mass data.
To date, Luke has used this zui microbalance to measure the quality of gold nanoparticles and the quality of three cow serum proteins. Currently, he is leading the research team to develop new resonators. They hope that the vibration modes of the new resonators are more complex and can make more accurate measurements.
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