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We describe the development of near-infrared (NIR) fluorescence from non-fluorescent gold nanoclusters as a result of the reaction with sulfhydryl oligopeptides. Non-fluorescent gold nanoclusters with a diameter of about 2nm were synthesized by reducing HAuCl4 with NaBH4 in the presence of tetraethyleneglycol. The fluorescence of the gold nanoclusters bearing sulfhydryl compounds arose from the ligand-to-metal...
In order to obtain information for the design of foods for infants and other young children, we analyzed bite size and mastication of children eating test foods with their fingers.Using baked stick biscuits (Food A: newly designed biscuits for children; or Food B: commercially available control biscuits) as the test foods, we analyzed how children grasped the foods themselves with their fingers, bit...
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