A new 3D organization of mesopores in oriented CTAB silica films

Article Abstract:

The high resolution electron microscopy (HRTEM) characterization of highly organized and textured CTAB (cetyltrimethylammonium bromide) templated films shows the formation of a 3D hexagonal structure due to the stabilization of a new phase that does not belong to the phase diagram of CTAB in water. The shrinkage of spin-coated films during the drying leads to weaker values of the c/a hexagonal ratio due to the constrained one-dimensional shrinkage of the films normal to the substrate plane.

Usage, High resolution spectroscopy

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General and simple approach for control cage and cylindrical mesopores, and thermal/hydrothermal stable frameworks

Article Abstract:

Highly ordered cage and cylindrical mesoporous silica monoliths (HOM) with two-dimensional and three-dimensional structures, mesopore volumes, and thick-walled frameworks were successfully fabricated by instant direct templating of lyotropic phases of copolymer. The structural findings of three-dimensional frameworks, transparent monoliths, and micropores combined with large cage and cylindrical-like mesopores find uses in material chemistry.

Silicon dioxide, Copolymers

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Single lanthanide-doped oxide nanoparticles as donors in fluorescence resonance energy transfer experiments

Article Abstract:

The lanthanide-ion doped oxide nanoparticles ([Y.sub.0.6]E[u.sub.0.4]V[O.sub.4] were used as donors in fluorescent resonance energy transfer (FRET) experiments. A comparison with simulations demonstrate that in the multiple donor-multiple acceptor configuration with a whole range of donor-acceptor distances, the most reliable estimation of FRET efficiency is the one based on the donor intensity in the presence and absence of acceptor.

All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Rare Earth Compounds, Analysis, Thermal properties, Rare earth metal compounds, Energy transformation, Nanoparticles

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