Results 211 to 220 of about 75,189 (260)

Mesoporous silica nanoparticles in nanotechnology

Critical Reviews in Biotechnology, 2012
Mesoporous silica nanoparticles (MSNs) are a versatile drug delivery system that can be used for loading of different guest molecules such as peptides, proteins, anticancer agents, and genetic material. MSNs are considered promising drug carriers due to their tuneable particle size, pore structure, and surface functionalization.
Dennis, Douroumis, Ichioma, Onyesom, Mohammed, Maniruzzaman, John, Mitchell   +3 more
openaire   +2 more sources

Silica nanoparticles for brain cancer

Expert Opinion on Drug Delivery, 2023
Brain cancer is a debilitating disease with a poor survival rate. There are significant challenges for effective treatment due to the presence of the blood-brain barrier (BBB) and blood-tumor barrier (BTB) which impedes drug delivery to tumor sites. Many nanomedicines have been tested in improving both the survival and quality of life of patients with ...
Feng, Yuran, Cao, Yuxue, Singh, Ravi, Janjua, Taskeen Iqbal, Popat, Amirali   +4 more
openaire   +4 more sources

Fluorescent Silica Nanoparticles by Silylation

Chemistry – A European Journal, 2009
AbstractShining nanosil: Fluorescent trimethoxysilanes were prepared by the hydrosilylation of N‐allyl perylene tetracarboxylic diimides and used for the covalent grafting of silica and silica nanoparticles (see picture).
Heinz, Langhals, Andreas Johann, Esterbauer   +1 more
openaire   +2 more sources

Biochemically functionalized silica nanoparticles

The Analyst, 2001
In this report, we demonstrate the biochemical modification of silica based nanoparticles. Both pure and dye-doped silica nanoparticles were prepared, and their surfaces were modified with enzymes and biocompatible chemical reagents that allow them to function as biosensors and biomarkers.
M, Qhobosheane, S, Santra, P, Zhang, W, Tan   +3 more
openaire   +2 more sources

THERMOPHORETIC CONVECTION OF SILICA NANOPARTICLES

Collective Phenomena in Macroscopic Systems, 2007
In this paper we show how by exploiting thermophoresis in nanoparticles (NPs) aqueous dispersions it is possible to perform convection experiments at high solutal Prandtl number Prs. We describe the experimental tools necessary to produce and analyze the faint density modulations induced by the convective flow.
A. Vailati, R. Cerbino, S. Mazzoni, F. Giavazzi, M. Giglio   +4 more
openaire   +2 more sources

Gold Nanoparticle Silica Nanopeapods

Journal of the American Chemical Society, 2014
A subnanometer gap-separated linear chain gold nanoparticle (AuNP) silica nanotube peapod (SNTP) was fabricated by self-assembly. The geometrical configurations of the AuNPs inside the SNTPs were managed in order to pose either a single-line or a double-line nanostructure by controlling the diameters of the AuNPs and the orifice in the silica nanotubes
Cong, VT Vu Thanh Cong, Ganbold, EO Ganbold, Erdene-Ochir, Saha, JK Saha, Joyanta K., Jang, J Jang, Joonkyung, Min, J Min, Junhong, Choo, J Choo, Jaebum, Kim, SH Kim, Sehun, Song, NW Song, Nam Woong, Son, SJ Son, Sang Jun, Lee, SB Lee, Sang Bok, Joo, SW Joo, Sang-Woo   +10 more
openaire   +3 more sources

Formation of Silica Nanoparticles in Microemulsions

Langmuir, 2007
Silica nanoparticles for controlled release applications have been produced by the reaction of tetramethylorthosilicate (TMOS) inside the water droplets of a water-in-oil microemulsion, under both acidic (pH 1.05) and basic (pH 10.85) conditions. In-situ FTIR measurements show that the addition of TMOS to the microemulsion results in the formation of ...
Finnie, Kim S., Bartlett, John R., Barbé, Christophe, Kong, Linggen   +3 more
openaire   +3 more sources

Synthesis of mesoporous silica nanoparticles

Chemical Society Reviews, 2013
Good control of the morphology, particle size, uniformity and dispersity of mesoporous silica nanoparticles (MSNs) is of increasing importance to their use in catalyst, adsorption, polymer filler, optical devices, bio-imaging, drug delivery, and biomedical applications.
Si-Han, Wu, Chung-Yuan, Mou, Hong-Ping, Lin   +2 more
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Biocompatibility of Mesoporous Silica Nanoparticles

Chemical Research in Toxicology, 2012
In this review, recent reports on the biocompatibility of mesoporous silica nanoparticles (MSNs) are reviewed, with special emphasis being paid to the correlations between MSNs' structural and compositional features and their biological effects on various cells and tissues.
Tewodros, Asefa, Zhimin, Tao
openaire   +2 more sources

Sensing Proteins with Luminescent Silica Nanoparticles

Langmuir, 2009
Nanometer sized silica nanoparticles (SiO2-NP) were prepared in water and loaded with two organic compounds, namely perylene and 1,6-diphenyl-1,3,5-hexatriene, which have well-defined and known fluorescence properties. The size of void and dye-doped SiO2-NP were determined by both transmission electron microscopy and atomic force microscopy, which ...
LATTERINI, Loredana, AMELIA, Matteo
openaire   +2 more sources