Abstract
Micro chemical systems are further downscaling to 10-100 nm space, which we call extended-nano space. In our laboratory, unique liquid properties were found in extended-nano space. So, we attempted to measure water structure for clarification of the mechanism of unique liquid properties. In this study, for the first time report structural analysis of water in extended-nano space by using synchrotron X-ray diffractometry and reducing background from microchemical chip and scattering by air. This method will contribute to clarify the mechanism of unique water properties in extended-nano space.