US and South Korea developed ultra-small blood tester
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According to South Korea’s Yonhap News Agency, South Korea’s Pohang University of Technology said on May 17 that Dr. Li Xiangxian, a mechanical engineering department of the school, and a joint research team led by Professor Alan Hunter of the University of Michigan in the United States used certain insulators at the nanoscale. With the principle of conductivity, we have successfully developed an ultra-small blood tester that can measure various blood indexes such as red blood cell size.
The research team has experimentally proved that when a non-conductor such as glass is decomposed to a nanometer size, it has the same conductivity as a normal semiconductor, and a current can pass as long as a very low voltage is input. On this basis, they have successfully developed liquid glass nanoelectrodes, which have great potential in the manufacture of cutting-edge medical devices such as Lab-on-a-chip or nano-sized semiconductors.
The team applied an electrode to a nanometer-sized instrument to create an ultra-small chemical analysis device that was integrated into a coin-sized chip using microfabrication technology to develop an ultra-small blood tester with just one drop of blood. At 1%, various blood indicators such as red blood cell size can be measured.
Since the chemical analysis device is developed using such a liquid glass nanoelectrode, it is not necessary to integrate both a conductor and a non-conductor, so it can also be used to manufacture ultra-small medical devices for a single cell.
(Source: Kexun)