Chemical and physical processes characteristic to μm-order dimensions are demonstrated. Asμm-size effects, the photoresponse time of dilation of microgels and the efficiency of pyrene excimer formation in liquid droplets dispersed in water are shown to decrease with reducing their size to μm. Fabrication of a series of μm-order reaction sites is an another important topic to be pursued. Photochemical surface modification, laser ablation, and chemical vapor deposition techniques were successfully employed to prepare pm photochemical functional sites on materials surface.
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