Results 71 to 80 of about 1,925 (184)

SIMPLE ENTRAPMENT OF ALCALASE IN DIFFERENT SILICA XEROGELS USING THE TWO STEPS SOL-GEL METHOD [PDF]

, 2011
The present study has focused on the entrapment of Alcalase in different xerogels obtained by using various molar ratios of methyltriethoxysilane, dimethyldietoxisilane and tetraethoxysilane.
Chiriac, A., Dudás, Zoltán Imre, Preda, Gabriela   +2 more
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Thermal behavior and structural study of SiO2/Poly(ε-caprolactone) hybrids synthesized via sol-gel method [PDF]

, 2018
SiO2-based organic-inorganic hybrids (OIHs) are versatile materials whose properties may change significantly because of their thermal treatment. In fact, after their preparation at low temperature by the sol-gel method, they still have reactive silanol ...
Bollino, Flavia, Ciprioti, Stefano Vecchio, Dal Poggetto, Francesco, Dell'Era, Alessandro, Tuffi, Riccardo   +4 more
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The Synthesis and Reactivity of Mesoporous and Surface-Rough Vinyl-Containing ORMOSIL Nanoparticles

Colloids and Interfaces
Silica nanoparticles synthesized solely from organosilanes naturally possess a greater number of organic functionalities than silica nanoparticles surface-modified with organosilanes.
Nathan I. Walton, Eric M. Brozek, Courtney C. Gwinn, Ilya Zharov   +3 more
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Synthesis and characterization of a sol-gel derived ureasilicate hybrid organic-inorganic matrix containing CdS colloidal particles [PDF]

, 2004
A hybrid organic-inorganic material filled with in situ generated inorganic particles has been synthesised by the homogeneous precipitation of CdS from aqueous solutions of Cd(NO3)2 and CH3CSNH2 .
Boev, Victor Ivanov, Gomes, M. J. M., Hungerford, Graham, Silva, Carlos J. R.   +3 more
core   +1 more source

Fluorescent carbon dioxide indicators [PDF]

, 2005
Over the last decade, fluorescence has become the dominant tool in biotechnology and medical imaging. These exciting advances have been underpinned by the advances in time-resolved techniques and instrumentation, probe design, chemical / biochemical ...
A. Mills, A. Mills, A. Mills, A. Mills, A. Mills, A. Mills, A. Mills, A. Mills, A. Mills, B.H. Weigl, C. Bültzingslöwen Von, C. Bültzingslöwen Von, C. Malins, C. Malins, C. Munkholm, C.L. Lake, D.A. Nivens, D.G. Mou, D.R. Walt, D.W. Lubbers, D.W. Lubbers, D.W. Lubbers, E. Rabinowitch, G. Liebsch, G. Neurauter, G. Orellana, G. Rao, H. Szmacinski, J. Sipior, J. Sipior, J.A. Ferguson, J.R. Lakowicz, J.S. Gravenstein, J.W. Parker, J.W. Severinghaus, K. Ertekin, M. Uttamlal, M.A. Jensen, M.B. Tabacco, M.D. Marazuela, M.D. Marazuela, M.J.P. Leiner, M.J.P. Leiner, M.L. Rooney, N. Nakamura, N. Nakamura, N. Nakamura, N. Opitz, O.S. Wolfbeis, O.S. Wolfbeis, O.S. Wolfbeis, O.S. Wolfbeis, O.S. Woltbeis, P. Herman, P. Miiller, Q. Chang, R.P. Wayne, T. Hirschfeld, W.R. Seitz, X. Ge, Y. Kawabata, Z. Zhujun   +61 more
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PRELIMINARY STUDY FOR USING VINYLTRIACETOXYSILANE AS PRECURSOR IN ENZYME IMMOBILIZATION BASED ON SOL-GEL METHOD [PDF]

, 2007
During the last years, sol-gel technology has become a well-established method for the preparation of catalytic active monoliths, bulk, particles and thin films.
Dudás, Zoltán Imre, Preda, Gabriela, VLAD-OROS, BEATRICE   +2 more
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A covalent organic/inorganic hybrid proton exchange polymeric membrane: synthesis and characterization [PDF]

, 2005
Commercial polyetheretherketone (Victrex PEEK) was sulfonated up to 90% degree of sulfonation (DS), then reacted with SiCl4 to obtain a hybrid polymer. The product was characterized by 29-Si NMR and ATR/FTIR spectroscopies demonstrating the formation of
D'Epifanio, A, Di Vona, ML, Licoccia, S, Marani, D, Traversa, E, Trombetta, M   +5 more
core   +1 more source

Mejora de sensores vítreos sol-gel para la conservación preventiva de materiales históricos frente a la acidez [PDF]

, 2007
[ES] Los sensores a base de recubrimientos vítreos sol-gel dopados con ácido 2[4-(dimetil-amino) fenilazo] benzoico son capaces de cambiar su absorción óptica cuando se someten a distintas concentraciones de iones H3O+ y OH-. La respuesta de los sensores
Heimbach, F., Lechelt-Kunze, Christa, Leicher, T., Nikolakis, Vladimiros A., Ratte, Hans Toni, Roß-Nickoll, Martina, Schaeffer, Andreas, Scholz-Starke, Björn, Theißen, B., Toschki, A.   +9 more
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Group Vibrational Mode Assignments as a Broadly Applicable Tool for Characterizing Ionomer Membrane Structure as a Function of Degree of Hydration [PDF]

, 2020
Infrared spectra of Nafion, Aquivion, and the 3M membrane were acquired during total dehydration of fully hydrated samples. Fully hydrated exchange sites are in a sulfonate form with a C₃V local symmetry. The mechanical coupling of the exchange site to a
Abu-Hakmeh, Khaldoon, Cruse, Ryan, Dimakis, Nicholas, Doan, Jonathan, Gao, Shuitao, Goddard, William A., III, Gonzalez, Luis, Ingargiola, Matthew, Jang, Seung Soon, Loupe, Neili, Mathiowetz, Kayla, Salas, Isaiah, Schide, Anne, Smotkin, Eugene S.   +13 more
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Estudio por espectroscopía infrarroja de la reacción de hidrólisis y policondensación del IEOS en presencia de PDMS

Boletín de la Sociedad Española de Cerámica y Vidrio, 2001
In this work, we have studied, by FT-IR Spectroscopy, the influence of the molecular weight of organic polymers (polydimethylsiloxane, PDMS) in the hydrolysis and polycondensation reactions of tetraethylortosilicate (TEOS) in acid medium.
Velasco, M. J., Rubio, J., Oteo, J. L.
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