Nanosilica-Armored Polymeric Vesicles Tailored for Sustainability and Size-Selective Response
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초록
내용
We developed a highly stable polymeric vesicle using a nanosilica-armor membrane to achieve a sustainable colorimetric/luminescent response. The silica armor can be grown directly as ~5 nm spherical nanoparticles on the surface of the diacetylene (DA) vesicle with liposomal structure. Once formed, the structural stability of the DA vesicles dramatically increased and did not agglomerate because of the electric charge of the silica armor after 6 months.. After polymerization, the polydiacetylene (PDA) vesicles maintained an average of 87.4 % their sensing capabilities compared to unstored vesicles. Furthermore, the silica membrane thickness can be controlled by reiteration of the electrostatic layer-by-layer approach. three layers of silica armor gave the PDA vesicles size-selective recognition to filter out external stimuli. These discoveries are expected to have large-scale effects in the chemo- and biosensor fields by applying protective layers to organic nanomaterials.