In recent years, improvements in mass spectrometry and laser spectroscopy have led to remarkable technological developments in atmospheric environmental measurement technology. In this paper, we will introduce the research on atmospheric environment measurement using the new mass spectrometer and laser spectrometer developed by our research group.

We have developed a method for fabricating nanodots on silicon substrates, in which a single dot of less than 10 nanometers in size can be grown on a 10x10 nanometer square. By utilizing the characteristics of these nanodots, it has become possible to make silicon and germanium, which are difficult to glow, glow, and to grow high-quality semiconductor thin films with drastically different lattice constants on silicon substrates. In this talk, I will explain the aim of this research and development, the preparation method of nanodots, and the results of their application.

The entire atomic structure of the ribosome, the central apparatus that converts genetic information into protein molecules, has been elucidated, and we can now visually understand the mechanism of the universal genetic code that life has acquired in the course of evolution since ancient times. A group of nucleic acid molecules called tRNAs mediate between the amino acid sequences of proteins and the genetic code, but the genetic code (termination codon), which indicates the termination site of genetic information decoding, exceptionally uses protein factors that mimic the function and structure of tRNAs instead of nucleic acid molecules like tRNAs. In this talk, I will introduce the mechanism of protein synthesis, which is realized by using different biomacromolecules with tRNA form as a common denominator.