A simple strategy, based on ultrafast heating of polystyrene microspheres infiltrated with a zinc acetate solution, is employed here for preparing ZnO microcontainers with femtoliter capacity. Their potential exploitation in micro-Raman assays for basic studies in bio- and nanotechnology is tested in different proof-of-concept experiments concerning the in situ analysis of L-glutathione crystals and gold-yeast cytochrome c bioconjugates. The ZnO microcontainers are also used as scaffolds for atomic layer deposition of TiO 2 overlayers with a fine-tuning of thickness and morphology. The resulting ZnO/TiO 2 heterostructures are tested in different photocatalytic experiments involving degradation and laser-induced conversion of methylene blue.
Metal Oxide Microrings with Femtoliter Capacity for Raman Microspectroscopy
ALESSANDRI, Ivano;DEPERO, Laura Eleonora
2010-01-01
Abstract
A simple strategy, based on ultrafast heating of polystyrene microspheres infiltrated with a zinc acetate solution, is employed here for preparing ZnO microcontainers with femtoliter capacity. Their potential exploitation in micro-Raman assays for basic studies in bio- and nanotechnology is tested in different proof-of-concept experiments concerning the in situ analysis of L-glutathione crystals and gold-yeast cytochrome c bioconjugates. The ZnO microcontainers are also used as scaffolds for atomic layer deposition of TiO 2 overlayers with a fine-tuning of thickness and morphology. The resulting ZnO/TiO 2 heterostructures are tested in different photocatalytic experiments involving degradation and laser-induced conversion of methylene blue.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
