- 건국대학교

	Prof. Hoonkyung Lee's team Develops technology which enables to shoot '3D ID photo'
	관리자		560		2020.04.10

<img alt="" src="ArticleFile.do?id=11785409" width="222" height="246" /> Professor Hoonkyung Lee (Department of Physics, Konkuk University), along with a research team of Professor Jungwon Park (School of Chemical and Biological Engineering, Seoul National University), succeeded in analyzing a nanoparticle research group supported by the Samsung Future Technology Promotion Project, which was the world's first to develop a 3-dimensional structure of nanoparticles in 0.02 nanometers accuracy.
The study was conducted in collaboration with Monash University in Australia and Lawrence Berkeley National Laboratory in the United States.
The research results were selected as the cover papers of the scientific journal “Science” on April 3rd, in recognition of the achievements of identifying the surface structure and change factors of nanoparticles, which were considered a challenge in academia.
This technology is expected to have ripple effects in various science and technology fields such as display, fuel cell, and new drug development. □ Development of the world's first technology to analyze nanoparticles' three-dimensional structure with an accuracy of 0.02 nm <img style="float: right; margin-left: 10px; margin-right: 10px;" src="ArticleFile.do?id=11785170" width="250" height="318" />Nanoparticles are sub-nanometer materials made up of tens to hundreds of atoms, and are widely used in various industries such as next-generation displays, fuel cell catalysts, and MRI contrast agents. Particularly, it is important to closely grasp the structure of the nanoparticles because it can improve the display color purity or improve the catalyst performance of the fuel cell even in the minute deformation of the atomic arrangement. Until now, only two-dimensional information such as the size and overall shape of the nanoparticles can be observed, and it has been impossible to confirm three-dimensional information such as the atomic arrangement of nanoparticles. The research team pays attention to the phenomenon that the nanoparticles spontaneously rotate in a liquid state, and is a special container that can continuously shoot rotating nanoparticles, 'Liquid Cell', and a big data algorithm for constructing three-dimensional data. Has developed itself. Using this, they succeeded in reconstituting two-dimensional flat images obtained by capturing 400 images per second into three-dimensional data using a transmission electron microscope by storing nanoparticles in a liquid cell into three-dimensional data using a big data algorithm.
Through this study, the team developed the world's first analytical technique that can analyze the three-dimensional structure of nanoparticles with an accuracy of 0.02 nanometers, and confirmed the three-dimensional atomic arrangement of nanoparticles using platinum (Pt).

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