We are interested in atmospheric multiphase chemistry, biosurface chemistry, molecular-level inhomogeneity, and interface chemistry and physics, etc.

As a recent reference, we reported the results of a time-dependent mass spectrometric investigation into the liquid-phase fates of SOZs (1,2,4-Trioxolanes, key products of ozonolysis of biogenic terpenoids) synthesized by ozonolysis of α-terpineol in water:acetone mixtures [Qiu et al., J. Phys. Chem. A, 2022, 126, 5386]. Isomerization of Criegee intermediates (a key atmospheric zwitterion/biradical) and bimolecular reaction of Criegee intermediates with acetone produced C₁₀ and C₁₃ SOZs, respectively, which were directly detected as their Na⁺-adducts by positive-ion electrospray mass spectrometry (We named this detection method “NaCl-MS”). These SOZs were surprisingly stable in water:acetone (1:1) mixtures at T = 298 K, with some persisting for at least a week. The present results suggest that terpenoid-derived SOZs can persist in atmospheric condensed phases, potentially until they are delivered to the epithelial lining fluid of the pulmonary alveoli via inhaled particulate matter, where they may exert hitherto unrecognized adverse health effects.
For more detail, https://pubs.acs.org/doi/10.1021/acs.jpca.2c04077?ref=PDF

We have collaborated with so many researchers (Caltech, UC Riverside, UC Irvine, U Tokyo, Kyoto U, NIES, etc.). We currently collaborate with researchers working with field measurements, atmospheric model simulations, and quantum chemical calculations. Research projects supported by JSPS are summarized in https://nrid.nii.ac.jp/en/nrid/1000000589385/.