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Nanopattern fabrication of metal dots on a water‐swollen hydrogel is performed by transcribing metallic nanodots from a solid substrate to the hydrogel surface. This fabrication technique may stimulate advances in nanoscience using soft, wet matter, enabling development of new ion‐based bio‐related devices. Au nano‐dots on a hydrogel can produce iridescent color, and its spectral response can be finely...
Pattern fabrication was performed by transcribing Au nano‐dots from Si to the hydrogel surface. The nano‐dots exhibited excellent adhesion despite extensive hydrogel expansion and contraction. Au nano‐dots on a hydrogel can produce iridescent color, and its spectral response can be finely modulated by controlling the nano‐dot spacing. This is a novel tunable photonic crystal made from soft and wet...
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