Current projects (English posters and selected papers)
(1) Cold interstellar dust chemistry
(i) Hama and Watanabe, Chem. Rev. 2013, 113, 8783. Surface Processes on Interstellar Amorphous Solid Water
(ii) Hama et al., J. Phys. Chem. Lett. 2014, 5, 3843. Quantum Tunneling Hydrogenation of Solid Benzene and Its Control via Surface Structure
(iii) Hama et al., PNAS 2015, 112, 7438. Quantum Tunneling Observed without Its Characteristic Large Kinetic Isotope Effects
(iv) Hama et al., Science 2016, 351, 65. Statistical Ortho-to-para Ratio of Water Desorbed from Ice at 10 Kelvin
(v) Hama et al., Astrophys. J. Lett. 2018, 857, L13. Ortho-to-para Ratio of Water Desorbed from Ice Made from Para-water
(vi) Nagasawa et al., Astrophys. J. Lett. 2021, 923, L3. Absorption Cross Section and Orientation of Dangling OH Bonds in Water Ice
(2) Amorphous and crystalline molecular solids at low temperature
(i) Hama et al., PCCP. 2017, 19, 17677. Fast crystalline ice formation at extremely low temperature (2017 PCCP HOT Articles)
(ii) Hama et al., J. Phys. Chem. Lett. 2020, 11, 7857. Anisotropic Molecular Orientation in Amorphous N2O at 6 K
(iii) Nagasawa et al., J. Raman Spectrosc. 2022, 53, 1748. Infrared multiple‐angle incidence resolution spectrometry for amorphous water
(iv) Sato et al., J. Chem. Phys. 2023, 158, 211101. Structure of crystalline water ice formed through neon matrix sublimation under cryogenic and vacuum conditions
(3) Photochemistry of atmospheric aerosol and sea surface microlayer
(i) Numadate et al., J. Phys. Chem. Lett. 2022, 13, 8290. OH Radical Desorption During the Ultraviolet Photolysis of Liquid Nonanoic Acid
(ii) Saito et al., Sci. Adv. 2023, 9, eadj6438. Impurity contribution to ultraviolet absorption of saturated fatty acid
(4) Infrared analysis of biological surfaces
(i) Hama et al., J. Phys. Chem. B 2017, 121, 11124. In Situ Nondestructive Analysis of Kalanchoe pinnata Leaf Surface Structure
(ii) Hama et al., Plant Cell Physiol. 2019, 60, 1567. Molecular Structure and Orientation of the Leaf Surface of Brassica oleracea L.
(iii) Hama et al., Biophys. Chem. 2020, 266, 106459. In Vivo Characterization of the Film Structures of a Fatty Acid and an Alcohol on the Skin Surface