Chikaraishi Yoshito

2019 - 2021 A new method for minimizing isotopic fractionation associated with derivatization of organic compounds

2018 - 2021 Presence and chirality of sugars formed in the early solar system: a new origin of biomolecule

2018 - 2021 Refinement of biomarker-based paleovegetation analysis, and its application to reconstruction of the paleovegetational variation in the northern Japan over the past 5 million years

2017 - 2021 Development of a highly sensitive method for stable isotope analysis of amino acids

2017 - 2019 Development of a methodology for measuring the energy transfer along food webs on aquatic-terrestrial mixed resources

2015 - 2018 A rapid derivatization method for measuring the stable isotope ratios of fatty acids in the study of biogeochemical cycles

2013 - 2017 Biogeosciences of sediment-water interface: comprehensive understandings of ecosystem functioning, dynamics and material cycles at sediment-water interface

2012 - 2016 Development of chiral-isomer specific isotope analysis of amino acids, for advances in studies for the interaction between life and organic compounds

2013 - 2015 A search of novel surrogates of sterols in anaerobic eukaryotes

2012 - 2015 Symbiosis drove foraminiferal evolution

2010 - 2012 Development of NMR application to Geo-metabolomics

2009 - 2012 Biotic history has accelerated under anoxic environments - Paradox of Foraminifera evolution can solve through field observation, laboratory culture and genomic analyses.

2009 - 2011 Development of multi-stable isotope analytical method of amino acids

2009 - 2011 Ecological roles of Xenophyophorean foraminifera in the deep-sea biological communities and early evolution of foraminifera

2008 - 2009 Development of enantiomer-specific isotope analysis (ESIA) of amino acids

2007 - 2008 Reconstruction of marine nitrogen cycle by compound-specific stable nitrogen isotope analysis of orga nic compounds