偏極中性子小角散乱法による急冷糖溶液中に生成するナノ氷結晶の構造解析

Structure analysis of nano-ice crystals in rapidly frozen sugar solutions using polarized small-angle neutron scattering

熊田 高之   ; 中部 倫太郎; 中川 洋   

Kumada, Takayuki; Nakabe, Rintaro; Nakagawa, Hiroshi

Spin-contrast-variation (SCV) small-angle neutron scattering (SANS) is a technique that determines nanostructures of composite materials from the proton-polarization-dependent polarized neutron scattering curves. We utilized the SCV-SANS technique to determine the structure of nanoice crystals generated in rapidly frozen sugar solutions. We found that the nanoice crystals generated in 45 and 52 wt% glucose solutions have a planar structure with a thickness of 2-3 nm, which was close to the critical nucleation size of ice crystals in supercooled water.