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Showing 31-60 of 140 results for "333859" within Papers
Bin Gao et al.
International journal of molecular medicine, 36(5), 1282-1290 (2015-12-10)
The aim of the present study was to examine the apoptosis of the hepatocellular carcinoma cell line, HepG2, induced by treatment with folic acid-conjugated silica-coated gold nanorods (GNRs@SiO2-FA) in combination with radiotherapy, and to determine the involvement of apoptosis-related proteins.
Fabrication of tunable silica-mineralized nanotubes using flagella as bio-templates
Jo W, et al.
Nanotechnology, 23(5) (2012)
Zahra Sharifalhoseini et al.
Journal of colloid and interface science, 455, 110-116 (2015-06-10)
The pure phase of the ZnO nanoparticles (NPs) as anticorrosive pigments was synthesized by the sonication method. The surfaces of the sono-synthesized nanoparticles were covered with the protective silica layer. The durability of the coated and uncoated ZnO NPs in
Ángela A Beltrán-Osuna et al.
Langmuir : the ACS journal of surfaces and colloids, 28(25), 9700-9706 (2012-05-23)
In this work, a new antifouling silica hydrogel was developed for potential biomedical applications. A zwitterionic polymer, poly(carboxybetaine methacrylate) (pCBMA), was produced via atom-transfer radical polymerization and was appended to the hydrogel network in a two-step acid-base-catalyzed sol-gel process. The
Kun Du et al.
Biotechnology progress, 31(1), 42-47 (2014-11-08)
Multiple enzyme mixtures are attractive for the production of many compounds at an industrial level. We report a practical and novel approach for coimmobilization of two enzymes. The system consists of a silica microsphere core coated with two layers of
Qi An et al.
Soft matter, 11(34), 6859-6865 (2015-08-04)
A "nano-net" superstratum strategy is developed to stabilize layer-by-layer (LbL) films that incorporate nanoparticles. The superstratum immobilizes silica, gold, or magnetic nanoparticles and at the same time is permeable to small molecules. Unlike most strategies to stabilize LbL multilayers reported
Jiajia Yang et al.
Analytica chimica acta, 853, 311-319 (2014-12-04)
Bisphenol A (BPA) imprinted sponge mesoporous silica was synthesized using a combination of semi-covalent molecular imprinting and simple self-assembly process. The molecularly imprinted sponge mesoporous silica (MISMS) material obtained was characterized by FT-IR, scanning electron microscopy, transmission electron microscopy, and
Rajendra K Singh et al.
Journal of biomedical materials research. Part A, 100(7), 1734-1742 (2012-03-27)
Magnetic nanoparticles (MNPs) are considered highly useful in therapeutic and diagnostic applications. However, MNPs require surface modification to promote dispersibility in aqueous solutions and thus biocompatibility. In this article, the authors modified MNPs with inorganic silica layer to create silica-coated
Zhihai Cao et al.
Langmuir : the ACS journal of surfaces and colloids, 28(17), 7023-7032 (2012-04-12)
Mesoporous silica capsules with submicrometer sizes were successfully prepared via the interfacial hydrolysis and condensation reactions of tetraethoxysilane (TEOS) in inverse miniemulsion by using hydrophilic liquid droplets as template. The inverse miniemulsions containing pH-controlled hydrophilic droplets were first prepared via
Xiao-Ming Zhu et al.
International journal of nanomedicine, 7, 953-964 (2012-03-07)
To compare the cellular uptake efficiency and cytotoxicity of aminosilane (SiO(2)-NH(2))-coated superparamagnetic iron oxide (SPIO@SiO(2)-NH(2)) nanoparticles with three other types of SPIO nanoparticles coated with SiO(2) (SPIO@SiO(2)), dextran (SPIO@dextran), or bare SPIO in mammalian cell lines. Four types of monodispersed
Suling Zhao et al.
Journal of colloid and interface science, 388(1), 40-46 (2012-09-12)
Monodispersed silica particles with bimodal size distribution were successfully prepared through adding an ethanol (EtOH) solution containing tetraethylorthosilicate (TEOS) dropwise into an ammonia EtOH solution at a constant low rate. The effects of the reaction parameters such as ammonia/ethanol ratio
Víctor Sebastian et al.
Nanoscale, 6(21), 13228-13235 (2014-09-27)
Compared to freestanding nanoparticles, supported nanostructures typically show better mechanical stability as well as ease of handling. Unique shapes such as core-shells, raspberries and crescents have been developed on supported materials to gain improved chemical and optical properties along with
Werner E G Müller et al.
Journal of tissue engineering and regenerative medicine, 9(11), E39-E50 (2013-04-16)
Polymeric silica is formed from ortho-silicate during a sol-gel formation process, while biosilica is the product of an enzymatically driven bio-polycondensation reaction. Both polymers have recently been described as a template that induces an increased expression of the genes encoding
Xuebin Ke et al.
Nanoscale research letters, 9(1), 2492-2492 (2015-06-20)
Metal-enhanced fluorescence (MEF) as a newly recognized technology has been attracting considerable attention and is widely used in fluorescence-based technology. In this paper, we reported a novel distance-dependent MEF and metal-enhanced singlet oxygen generation phenomenon based on silica-coated gold nanorods
A performance evaluation of direct methanol fuel cell using impregnated tetraethyl-orthosilicate in cross-linked polymer membrane
Jung DH, et al.
International Journal of Hydrogen Energy, 26(12), 1263-1269 (2001)
Bhuvaneswari Koneru et al.
Molecules (Basel, Switzerland), 20(11), 19690-19698 (2015-11-04)
Tetracycline (TC) is a well-known broad spectrum antibiotic, which is effective against many Gram positive and Gram negative bacteria. Controlled release nanoparticle formulations of TC have been reported, and could be beneficial for application in the treatment of periodontitis and
Yuan Liao et al.
ACS applied materials & interfaces, 6(18), 16035-16048 (2014-08-26)
With modest temperature demand, low operating pressure, and high solute rejection, membrane distillation (MD) is an attractive option for desalination, waste treatment, and food and pharmaceutical processing. However, large-scale practical applications of MD are still hindered by the absence of
Chao-Yan Zhang et al.
Journal of chromatography. A, 1383, 18-24 (2015-01-27)
Three Ag(I)-organic frameworks, [Ag5(pydc)2(CN)]n, {[Ag4(pydc)2]CH3CN}n, and [Ag(4,4'-bpy)NO3]n, were synthesized and embedded into silica gels to form metal-organic-framework (MOF)-embedded gels for the microextraction of polybrominated diphenyl ethers (PBDEs) in soils. Despite the great differences in the structures of the organic ligands
O N Ponamoreva et al.
Biosensors & bioelectronics, 67, 321-326 (2014-09-10)
The methylotrophic Pichia angusta VKM Y-2559 and the oleaginous Cryptococcus curvatus VKM Y-3288 yeast cells were immobilized in a bimodal silica-organic sol-gel matrix comprised of tetraethoxysilane (TEOS), the hydrophobic additive methyltriethoxysilane (MTES) and the porogen polyethylene glycol (PEG). Under carefully
Lei Zhou et al.
Nature communications, 6, 6938-6938 (2015-04-25)
The identification of potential diagnostic markers and target molecules among the plethora of tumour oncoproteins for cancer diagnosis requires facile technology that is capable of quantitatively analysing multiple biomarkers in tumour cells and tissues. Diagnostic and prognostic classifications of human
Mehrdad Mohammadpour et al.
Cornea, 33(7), 738-743 (2014-06-03)
The aim of this study was to investigate transmission of topical silicate nanoparticles (SiNPs) through the corneal stroma, anterior chamber, and vitreous fluids by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and inductively coupled plasma atomic emission spectrometry (ICP-AES)
Lorenzo Fernandez et al.
Journal of molecular modeling, 18(7), 3301-3310 (2012-01-19)
Quantum chemical calculations using density functional theory have been carried out to investigate two chemical pathways for the last step of the hydrolysis of tetraethylorthosilicate (TEOS) in basic catalyzed environment. The two models that are introduced in this study depend
Xiaoli Gu et al.
RSC advances, 5(52), 41377-41384 (2015-08-11)
Surface molecularly imprinted polymers (MIP@SBA-15) imprinted on the surface of hybrid nanostructured organic/inorganic materials (SBA-15) were prepared for the selective extraction and detection of baicalin (BA) from biological samples. The surface morphologies and characteristics of the imprinted and non-imprinted polymers
Juan F Illescas et al.
ACS applied materials & interfaces, 4(8), 4259-4269 (2012-07-19)
This article describes a sol-gel route for nanomaterials production, without volatile organic compounds (VOCs). These materials are simply obtained by mixing a silica oligomer with a non-ionic surfactant under ultrasonic agitation. The surfactant acts as sol-gel transition catalyst and also
Yasuaki Tokudome et al.
Scientific reports, 2, 683-683 (2012-09-25)
Stimuli-response on hierarchically-structured surface wrinkles is required for advanced filtration, catalysis and sensing applications. Although conventional processes can form hierarchical surface wrinkles, incorporation of stimuli-responsive features has not been achieved, limiting the potential multi-scale functionality of wrinkles. Here, we demonstrate
Sol-gel-derived hybrid coatings for corrosion protection
Chou TP, et al.
Journal of Sol-Gel Science and Technology, 26(1-3), 321-327 (2003)
Li Li et al.
Nanoscale research letters, 10(1), 445-445 (2015-11-19)
Moisture control is an important part of effective maintenance program for gas-insulated switchgear (GIS). Herein, hexagonal mesoporous silica (HMS) materials were synthesized by adopting dodecylamine as a structure directing agent, which was then employed as a host for supporting polyethylenimine
Xiaole Zhang et al.
Journal of colloid and interface science, 448, 189-196 (2015-03-04)
In this work, a facile one-pot strategy was proposed for the synthesis of C18-functionalized core-shell magnetic mesoporous silica composite (Fe3O4/mSiO2-C18). The Fe3O4/mSiO2-C18 composite, with an average size of 80 nm and a functionalized mesoporous silica shell of about 30 nm
Jani Holopainen et al.
Nanotechnology, 26(2), 025301-025301 (2014-12-17)
A needleless electrospinning setup named 'Needleless Twisted Wire Electrospinning' was developed. The polymer solution is electrospun from the surface of a twisted wire set to a high voltage and collected on a cylindrical collector around the wire. Multiple Taylor cones
Deposition of thick TEOS PECVD silicon oxide layers for integrated optical waveguide applications
Bulla DAP and Morimoto NI
Thin Solid Films, 334(1-2), 60-64 (1998)
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