Results 21 to 30 of about 20,641 (267)
Química Nova, 2002 The xerogel p-anisidinepropylsilica was obtained. This solid presents some residual paraffin and also a small fraction of high organofunctionalized material that was leached in polar solvent.
Leonardo Franken +4 more
doaj +1 more source
Controllable transport mean free path of light in xerogel matrixes embedded with polystyrene spheres [PDF]
, 2008 Xerogel matrices, made by sol-gel techniques, are embedded with polystyrene spheres to promote multiple scattering of light. Varying the concentration of the spheres inside the matrix allows one to adjust the transport mean free path of light inside the ...
Boris P. Bret +36 more
core +2 more sources
Green Chemistry Letters and Reviews, 2023 Here, we report the efficient one-pot removal of heavy metal ions and pharmaceuticals using xerogel, activated carbon and gravel. The simplest xerogel from tetramethyl orthosilicate showed ∼ twice the adsorption capacity of activated carbon derived from ...
Ibrahim Karume +5 more
doaj +1 more source
Biofunctionalized all-polymer photonic lab on a chip with integrated solid-state light emitter [PDF]
, 2015 A photonic lab on a chip (PhLOC), comprising a solid-state light emitter (SSLE) aligned with a biofunctionalized optofluidic multiple internal reflection (MIR) system, is presented.
Büttgenbach, Stephanus +6 more
core +1 more source
Nanoporous Xerogel for Adsorption of Pb2+ and Cd2+ [PDF]
Journal of Nanostructures, 2015 Classical xerogels are robust, inexpensive and nontoxic materials with low-ordered nanoporous structures. In water streams where the pH is higher than the Point of Zero Charge, the surface of classical xerogels such as tetraethoxy orthosilan (TEOS ...
F. B. Sarand +3 more
doaj +1 more source
Converting water adsorption and capillary condensation in useable forces with simple porous inorganic thin films [PDF]
, 2016 This work reports an innovative humidity driven actuation concept based on Bangham effect using simple nanoporous sol-gel silica thin films as humidity responsive materials.
Boudot, Mickael +2 more
core +3 more sources
Eclética Química, 2018 The hybrid 3-(1,4-phenylenediamine)propylsilica xerogel was obtained starting from two different organic precursor quantity (5 and 8 mmol) to 22 mmol of TEOS, in the synthesis.
J. C. P. Vaghetti +4 more
doaj +1 more source
Investigation of silica - PVA xerogel microstructure evolution during thermal treatment by SANS experiment [PDF]
, 2004 The purpose of the study was to investigate the appearance of certain microstructures developing in the SiO2/PVA nanocomposite xerogels at different temperatures by small-angle neutron scattering (SANS). The samples were prepared by the alcoxide route of
Almásy, László +3 more
core +1 more source
Leaching of Atrazine in Commercial and Xerogel Formulations in Oxisol Using Bioassay and Chromatographic Methods [PDF]
Planta Daninha, 2015 Mobility of atrazine in soil has contributed to the detection of levels above the legal limit in surface water and groundwater in Europe and the United States.
E.D. Marchesan +4 more
doaj +2 more sources
Podoplanin immunopositive lymphatic vessels at the implant interface in a rat model of osteoporotic fractures [PDF]
, 2013 Insertion of bone substitution materials accelerates healing of osteoporotic fractures. Biodegradable materials are preferred for application in osteoporotic patients to avoid a second surgery for implant replacement. Degraded implant fragments are often
Alt, Volker +16 more
core +2 more sources