Results 181 to 190 of about 3,172 (245)

Self‐templated magnesiothermic reduction of ORMOSIL particles to monodisperse hollow spherical SiC composite particles

Journal of The American Ceramic Society
Hollow silicon carbide (SiC) particles have attracted attention due to their well‐defined morphology, low density, and large surface area that can be leveraged for a wide variety of applications.
G. I. Jung, Hyung-jun Lim, S. M. Lee, S. Koo   +3 more
semanticscholar   +1 more source

Effects of Temperature on Properties of Ormosils

MRS Proceedings, 1996
Organically modified silicates, the so-called Ormosils, based on silica (SiO2) and polydimethylsiloxane (PDMS), can have wide variations of mechanical properties depending on their chemical compositions and processing variables. The random network of the SiO2 is structurally modified by the reactive incorporation of PDMS chains to give materials ...
J. D. Mackenzie, Q. Huang, F. Rubio-Alonso, S. J. Kramer   +3 more
openaire   +1 more source

Geometrically twisted intra-inter-molecular cooperative interactions for an enhanced photo-response in an ORMOSIL-based host-guest system.

Chemical Communications
In situ encapsulation of the 2-(2'-hydroxylphenyl)benzothiazole (HBT) fluorophore into organically modified silica (ORMOSIL) is recognized as a potential approach to increase the photocurrent conversion efficiency.
Moumita Chandra, A. Sahu, Nitul Kalita, M. Qureshi   +3 more
semanticscholar   +1 more source

High accuracy OrMoSil (Polyvinylidene Fluoride)-supported colorimetric sensor: Novel approach for the calculation of the pH prediction error.

Talanta: The International Journal of Pure and Applied Analytical Chemistry, 2020
pH colorimetric sensors with prediction error comparable to the potentiometric measurements in the working range of the indicator employed, were prepared.
A. Pastore, D. Badocco, P. Pastore
semanticscholar   +1 more source

Dermal cells distribution on laser‐structured ormosils

Journal of Tissue Engineering and Regenerative Medicine, 2011
Several dermal substitutes for skin grafting are now commercially available, although their performance still needs improvement. Most artificial dermises have a lower take rate than autologous grafts and require more time for sufficient vascular ingrowth to overlay the skin graft.
L E, Sima, E C, Buruiana, T, Buruiana, A, Matei, G, Epurescu, M, Zamfirescu, A, Moldovan, S M, Petrescu, M, Dinescu   +8 more
openaire   +2 more sources

Optical rubbery ormosils sensor for the detection of ammonia

Fresenius' Journal of Analytical Chemistry, 2001
Rubbery ormosil films with immobilized aminofluorescein (AF) were investigated to develop an optochemical sensor for the determination of ammonia in water. The gel precursors with tetramethoxysilane (TMOS) and dimethyldimethoxysilane (DiMeDMOS) were deposited on glass supports, and characterized in terms of response to pH, and to dissolved ammonia at ...
Chen, X, Dai, YJ, Li, Z, Zhang, ZX, Wang, XR   +4 more
openaire   +3 more sources

Influence of surfactant chain length, counterion and OrMoSil precursors on reversibility and working interval of pH colorimetric sensors.

Talanta: The International Journal of Pure and Applied Analytical Chemistry, 2020
An in-depth study was conducted to determine the influence of some important parameters to produce a pH colorimetric sensor characterized by long-term stability, lack of leaching, high reversibility, repeatability and extended working range.
A. Pastore, D. Badocco, P. Pastore
semanticscholar   +1 more source

Surfactant-Synthesized Ormosils with Application to Stone Restoration

Langmuir, 2010
A challenging objective in monumental stone restoration is to synthesize crack-free silica materials for application as consolidants. Hydrophobicity is also a valuable property for such products; it is important to prevent the penetration of water because water is the main vehicle by which the agents of decay enter the pore structure of the stone.
Maria J, Mosquera, Desireé M, de los Santos, Teresa, Rivas   +2 more
openaire   +2 more sources

Blue-Light-Excited Cyan-Emitting Carbon-Dot-Ormosil Gel for Blue-Overshoot Mitigation and Cyan-Gap Bridging in WLEDs.

Small
Currently, the primary method for manufacturing white light-emitting diodes (WLEDs) involves pairing blue-emitting InGaN LED chips with a yellow-emitting phosphor coating or complementary green and red phosphors.
Junkai Ren, Hongchen He, Zhuolin Liu, Decai Xiong, Peijun Zhang, Dan Qu, Jiaolong Liu, Bing Wei, Jia Wang   +8 more
semanticscholar   +1 more source

Silica/Ormosil SPIONs for Biomedical Applications

Current Nanoscience, 2013
In the present work, magnetic nanoparticles coated with silica or ORMOSIL are prepared in a two step process. In the first step, SPIONs with 6 nm average diameter are produced by a reduction-precipitation process conducted in air and in the second one, SPIONs were used as seeds for silica/ORMOSIL growth (below 30 nm), in situ by a modified Stöber sol-
M. C. Gonçalves, L. M. Fortes, A. R. Pimenta, J. C.G. Pereira, R. M. Almeida, M. D. Carvalho, L. P. Ferreira, M. M. Cruz, M. Godinho   +8 more
openaire   +1 more source