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We investigated the tactile perception of a liquid surface that can be clearly felt as a thin line by a hand moving in the liquid. Although this phenomenon was first reported by Meissner in 1859 and is quite well known, the underlying mechanism is poorly understood. This study aimed to clarify how we perceive the boundary between the atmosphere and water as… (More)
A chiral Pybox ligand bearing two urea units was developed for a Ca(2+)-induced folding ligand. 1:1 Ca(2+) complexation of the Pybox ligand afforded chiral foldamer formation with coordination of the urea carbonyls to Ca(2+). The halide-ion affinity of the foldamer was enhanced compared to Ca(2+)-free Pybox ligands.