Results 151 to 160 of about 1,931 (184)

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

Multifunctional ORMOSIL and PAA nanoparticles

SPIE Proceedings, 2009
Various problems arising during molecular imaging of different fluoroprobes and metabolites used in PDT can be circumvented by focusing on multifunctional therapy agents. Thus an effective photo sensitizer coupled with other useful roles to play in PDT treatment make nanoparticles as a good vehicle for different delivery assuming multifunctional ...
Anurag Gupta, K. V. R. Rao, Paula Pera, Shouyan J. Wang, Joseph R. Missert, Tymish Ohulchanskyy, Indrajit Roy, Janet Morgan, Paras N. Prasad, Raoul Kopelman, Ravindra K. Pandey   +10 more
openaire   +1 more source

Dynamic studies of Ormosil membranes

Journal of Non-Crystalline Solids, 2008
Abstract With the help of nuclear magnetic resonance (NMR) and quasi-elastic neutron scattering (QENS) we have carried out dynamic studies of Ormosil membranes presenting protonic conductivity properties. These nanocomposite hybrid materials prepared by sol–gel process are based on an organic–inorganic network [polymer chains (poly(propylene glycol),
K. Maver, U. Lavrenčič Štangar, P. Judeinstein, J.M. Zanotti   +3 more
openaire   +1 more source

Rubbery ormosils and their applications

Journal of Non-Crystalline Solids, 1992
When a polymer such as silanol terminated polydimethylsiloxane (PDMS) is mixed with an alkoxide such as tetraethoxysilane (TEOS) in a suitable solvent and catalyst, gels can be prepared which exhibit rubbery elasticity. The microstructures of such organically modified silicates (ormosils) can be controlled to give solids which are opaque or transparent
John D. Mackenzie, Y.J. Chung, Y. Hu
openaire   +1 more source

P-Containing ORMOSILS for bone reconstruction

Progress in Solid State Chemistry, 2006
Abstract PDMS–CaO–SiO 2 –phosphatoethylsilane (PES) ORMOSILS with different P content were prepared as monoliths. The use of a phosphorous source such as diethyl phosphatoethyl triethoxysilane (DEPETES) allowed the introduction at a molecular level of P into an ORMOSIL network.
M. Manzano, A.J. Salinas, M. Vallet-Regí   +2 more
openaire   +1 more source

Characteristics of dye-doped ormosil lasers

SPIE Proceedings, 1994
New hybrid organic-inorganic materials synthesized at room temperature and doped with laser dyes have been tested for laser action. The new ormosil material has excellent optical properties and is an effective host for many organic molecules.
Mark D. Rahn, Terence A. King, Carol A. Capozzi, Angela B. Seddon   +3 more
openaire   +1 more source

Thin ORMOSIL Films with Different Organics

Journal of Sol-Gel Science and Technology, 1998
Structural, optical and electrical properties of silicate films modified by structure fragments containing different organic groups were studied. The ORMOSILs were produced by a cohydrolysis of tetraethoxysilane with different types of alkyl (aryl) substituted alkoxysilanes.
K.A. Vorotilov, V.A. Vasiljev, M.V. Sobolevsky, A.S. Sigov   +3 more
openaire   +1 more source

Preparation of Metal-Cluster-Ormosil Nanocomposites

MRS Proceedings, 1992
ABSTRACTA series of metal-cluster-organically modified silicate, or Ormosil, nanocomposites were prepared by the sol-gel method. Each of the metals (Ag, Au, Cu, and Pt), was incorporated individually into the Ormosil matrices at various weight percents by reduction of the appropriate metal salt. The preparation for these metal-cluster doped-Ormosils is
Chia-Yen Li, Justine Y. Tseng, Cornelia Lechner, John D. Mackenzie   +3 more
openaire   +1 more source

Thermal Stability Enhancement Of Rubbery Ormosils

MRS Proceedings, 1994
ABSTRACTThermal stability of a novel rubbery ORMOSIL of condensed tetraethoxysilane (TEOS) and polydimethylsiloxane (PDMS) was investigated along with methods by which to improve this stability. Based upon literature review of siloxane systems, modifications of the base ORMOSIL ...
S. J. Kramer, J. D. Mackenzie
openaire   +1 more source

Glass Strengthening Using Ormosil Polymeric Coatings

Journal of Sol-Gel Science and Technology, 1998
Ormosil polymeric coatings comprised of an epoxy resin, an amine hardener and a silane have been applied to glass samples containing large, controlled defects introduced by Vicker's indentation. The coatings can completely overcome these controlled defects. The strengthening effect is due to penetration of the defects by the coatings.
R.J. Hand, F.H. Wang, B. Ellis, A.B. Seddon   +3 more
openaire   +1 more source