In order to prepare basalt fibers-reinforced cement-based mortars with higher compatibility between reinforcement and matrix, fibers new surface treatments (sizing) were studied looking for enhanced interaction at the interphase cement matrix. As-received, calcinated, activated silanized (by three silane aqueous solutions: i) ?-aminopropyltriethoxysilane, APTES; ii) ?-aminopropylmethyldiethoxys...

BACKGROUND We report on aminopropyltriethoxysilane (APTS)-mediated surface modification of nanohydroxyapatite with different surface functional groups for potential biomedical applications. In this study, nanohydroxyapatite covalently linked with APTS (n-HA-APTS) was reacted with acetic anhydride or succinic anhydride to produce neutralized (n-HA-APTS. Ac) or negatively charged (n-HA-APTS.SAH) ...

in this research, (carboxy-3-oxopropylamino)-3-propylsilylcellulose (copapsc) as an organocatalyst, has been synthesized by grafting of succinic anhydride on the nh2-modified cellulose (cellulose functionalized with 3- aminopropyltriethoxysilane). the –co2h group-functionalized cellulose (copapsc) is used as a catalyst for the synthesis of coumarin derivatives from the reaction of phenolic subs...

Biosensors composed of biomolecules and electromechanical components have enabled new sensing modalities for chemical sensing, pathogen detection and disease therapy. Traditional biosensors are silicon-based, but silicon has a known limited radiation lifetime. Gallium nitride (GaN), however, is radiationhard and shows potential for use in biosensors to detect radiation. To support the developme...

One of the major issues associated with industrial production of menaquinone-7 (MK-7) is the low fermentation yield. In this study, we investigated the effect of iron oxide nanoparticles coated with 3-aminopropyltriethoxysilane (IONs@APTES) on the production of MK-7 using B. subtilis (ATCC 6633). Decoration of B. subtilis cells with IONs@APTES significantly enhanced both MK-7 production and yie...

Organic photovoltaics have the potential to serve as lightweight, low-cost, mechanically flexible solar cells. However, losses in efficiency as laboratory cells are scaled up to the module level have to date impeded large scale deployment. Here, we report that a 3-aminopropyltriethoxysilane (APTES) cathode interfacial treatment significantly enhances performance reproducibility in inverted high...

It is of great importance to efficiently immobilize probes onto a substrate with good spot quality for fabrication of protein microarrays. Printing buffers play an essential role in the fabrication process for the microarrays. In this work, antigen (Ag)/antibody (Ab) microarrays were fabricated on 3-aminopropyltriethoxysilane (APTES) modified glass slides through glutaraldehyde (GA), a bis-alde...

In the present work, co-immobilization of cholesterol oxidase (COD) and horseradish peroxidase (POD) on perlite surface was attempted. The surface of perlite were activated by 3-aminopropyltriethoxysilane and covalently bonded with COD and POD via glutaraldehyde. Enzymes activities have been assayed by spectrophotometric technique. The stabilities of immobilized COD and POD to pH were higher th...

Mg alloys with high Al contents have superior corrosion resistance in aqueous environments, but poor cytocompatibility compared to that of pure Mg. We have silanized the cast AZ91 alloy to improve its cytocompatibility using five different silanes: ethyltriethoxysilane (S1), 3-aminopropyltriethoxysilane (S2), 3-isocyanatopyltriethoxysilane (S3), phenyltriethoxysilane (S4) and octadecyltriethoxy...

Chitosan was recently indicated to enhance osteogenesis, improve wound healing but to activate the coagulation and the complement systems. In the present study approximately 10 nm thick chitosan film were prepared on aminopropyltriethoxysilane (APTES) coated silicon. The surfaces were incubated in serum or plasma and subsequently in antibodies towards key complement and contact activation of co...