نتایج جستجو برای: aptes

تعداد نتایج: 399  

2012
Sandeep Kumar Vashist

1-Ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) alone, and in combination with N-hydroxysuccinimide (NHS) or sulfoNHS were employed for crosslinking anti-human fetuin A (HFA) antibodies on 3-aminopropyltriethoxysilane (APTES)-functionalized surface plasmon resonance (SPR) gold chip and 96-well microtiter plate. The SPR immunoassay and sandwich enzyme linked immunosorbent immunoassay (ELISA...

Journal: :Carbohydrate Polymers 2021

Organic-inorganic hybrid materials overcome drawbacks associated with alginate hydrogels. In this work, covalently coupled silica-alginate hybrids were prepared by Schiff base formation and sol-gel reaction using dialdehyde (ADA), (3-Aminopropyl) triethoxysilane (APTES), APTES/tetraethylorthosilicate (TEOS) precursors. The influence of the polysaccharide/inorganic ratio, nature inorganic precur...

Journal: :Molecules 2023

The interfacial mechanism has always been a concern for 3-aminopropyltriethoxysilane (APTES)-grafted palygorskite (PAL). In this research, the of graft modification grafting APTES to surface PAL (100) was studied using density functional theory (DFT) calculation. results illustrated that different states influence inter- and intramolecular interactions between APTES/PAL (100), which are reflect...

2010
Chaohua Cui Jie Min Cheuk-Lam Ho Tayebeh Ameri Pei Yang Jianzhang Zhao Christoph J. Brabec Wai-Yeung Wong

Propylamino-functionalized mesoporous thin films were synthesized via co-condensation of the oxide precursor tetraethoxysilane (TEOS, Merck) and the amine precursor 3-aminopropyltriethoxysilane (APTES, Fluka 98%) in the presence of the template (F127 block copolymer, Aldrich, Mw ~13600). The precursor solution was prepared using 0.8 TEOS:0.2 APTES:0.005 F127:24 EtOH:5.2 H2O:0.28 HCl. This solut...

2014
Reinaldo G. Digigow Jean-François Dechézelles Hervé Dietsch Isabelle Geissbühler Dimitri Vanhecke Christoph Geers Ann M. Hirt Barbara Rothen-Rutishauser Alke Petri-Fink

We report on the synthesis and characterization of functional silica hybrid magnetic nanoparticles (SHMNPs). The co-condensation of 3-aminopropyltriethoxysilane (APTES) and tetraethyl orthosilicate (TEOS) in presence of superparamagnetic iron oxide nanoparticles (SPIONs) leads to hybrid magnetic silica particles that are surface-functionalized with primary amino groups. In this work, a comprehe...

2014
Sebastian Requena Srijan Lacoul Yuri M. Strzhemechny

As-received BaTiO₃ nanopowders of average grain sizes 50 nm and 100 nm were functionalized by (3-aminopropyl)triethoxysilane (APTES) and mixed with poly(methyl methacrylate)/toluene solution. The nanocomposite solution was spin coated on Si substrates to form thin films. The photoluminescence spectrum of the pure powder was composed of a bandgap emission at 3.0 eV and multiple bands centered ab...

Hamid Aliyan, Razieh Fazaeli Somaieh Parishani Foroushani Zahra Heidari Zahra Mohagheghian

Surface of mesostructured silica, KIT-6, was modified by grafting 3-aminopropyl-triethoxysilane (APTES) to have the positive charge, and thus, to provide sites for the immobilization of H3PW12O40 (PW12).  This modified-nanosized mesoporous silica (PW12-APTES@ KIT-6) was characterized by FTIR, XRD, BET and TEM. The oxidation of sulfides occurs effectively and selectively with H2O2 as the oxidant...

Journal: :Separations 2023

The goal of this work is to investigate the effectiveness amorphous SiO2−FexOy loaded by functionalization with Ce(SO4)2, Li2SO4, and 3-aminopropyltriethoxysilane (APTES) for CO2 adsorption. Silica iron-based materials are gaining popularity due their wide range applications, such as catalysis, photocatalysis, imaging, etc.; however, there very few studies regarding adsorption aforementioned ma...

Journal: :Atmosphere 2022

In this work, the impact of TiO2 properties on CO2 adsorption titanium dioxide modified with 3-aminopropyltriethoxysilane (APTES) was presented. The APTES-modified materials were obtained by solvothermal process and thermal modification in argon atmosphere. prepared adsorbents characterized various techniques such as X-ray diffraction (XRD), Fourier transform infrared (DRIFT), thermogravimetric...

Journal: :Catalysts 2021

This work investigated for the first time role of adsorption in photocatalytic degradation methylene blue and Orange II dyes presence 3-aminopropyltriethoxysilane (APTES)-modified TiO2 nanomaterials. It has been demonstrated that decrease a detrimental effect on activity. APTES/TiO2 photocatalysts were successfully prepared by solvothermal modification pressure autoclave, followed heat treatmen...

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