Results 261 to 270 of about 210,653 (303)
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DNA Bimodified Gold Nanoparticles
Langmuir, 2011We report a general approach to bimodify gold nanoparticles (GNPs) with two different DNA strands via DNA template reaction. Two thioctic acid modified DNA strands, one at 5' end and one at 3' end, were attached to GNPs through bivalent thiol-gold bond. By sequence design, assemblies of 5 nm GNPs chains, 10 nm GNPs chains and alternative arrangement of
Tao, Zhang +8 more
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Chromophore-Functionalized Gold Nanoparticles
Accounts of Chemical Research, 2003We report in this Account the design of chromophore-functionalized metal nanoparticles and the detailed investigation of the ground- and excited-state interactions between the metal nanoparticles and the photoactive molecules. The methodologies adopted for organizing chromophore-functionalized gold nanoparticles on two-dimensional surfaces and the ...
K George, Thomas, Prashant V, Kamat
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Ciprofloxacin-Protected Gold Nanoparticles
Langmuir, 2004The antibacterial drug ciprofloxacin (cfH) has been used to protect gold nanoparticles of two different mean diameters, 4 and 20 nm. The protection is complete with about 65 and 585 cfH molecules covering 4 and 15 nm particles, respectively. The nature of binding has been investigated by several analytical techniques. The nitrogen atom of the NH moiety
Renjis T, Tom +4 more
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Magnetism in gold nanoparticles
Nanoscale, 2012Gold nanoparticles currently elicit an intense and very broad research activity because of their peculiar properties. Be it in catalysis, optics, electronics, sensing or theranostics, new applications are found daily for these materials. Approximately a decade ago a report was published with magnetometry data showing that gold nanoparticles, most ...
Gareth L, Nealon +5 more
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Biosynthesis of Gold Nanoparticles
Journal of Nanoscience and Nanotechnology, 2011Synthesis of nanoparticles with interesting physico-chemical properties using efficient as well as eco-friendly technology is one of the main objectives of nanotechnology. Biological systems have been reported to synthesize inorganic materials under certain circumstances.
T, Panda, K, Deepa
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Colloidal porous gold nanoparticles
Nanoscale, 2018Colloidal porous gold nanoparticles are synthesized through the simultaneous gold deposition on and chemical etching of colloidal PbS nanocrystals.
Jinhui Hu +5 more
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Alkanetelluroxide-Protected Gold Nanoparticles
Langmuir, 2008The synthesis and characterization of the first air-stable tellurium-containing ligand-protected gold nanoparticles (NPs) are reported. Although the synthesis largely followed the well-known Brust two-phase approach, the starting ligand was dioctyl ditelluride rather than alkanetellurol, which is an analogue of the widely used alkanethiol.
Ying, Li +3 more
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Radiosensitization by gold nanoparticles
Clinical and Translational Oncology, 2013Recent years brought increasing use of gold nano particles (GNP) as a model platform for interaction of irradiation and GNPs aiming radiosensitization. Endocytosis seems to be one of the major pathways for cellular uptake of GNPs. Internalization mechanism of GNPs is likely receptor-mediated endocytosis, influenced by GNP size, shape, its coating and ...
B, Jeremic, A R, Aguerri, N, Filipovic
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Phagocytosis of Biocompatible Gold Nanoparticles
Langmuir, 2010We report the evidence for the cellular uptake of gold nanoparticles via the phagocytosis mechanism in murine macrophage cells strongly supported by TEM and optical microscopy. Nanoparticles were prepared using several biocompatible molecules of choice (5-aminovaleric acid, l-DOPA, melatonin, and serotonin hydrochloride) as stabilizers for gold ...
Z. Krpetic +4 more
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Gold nanoparticles in delivery applicationsā
Advanced Drug Delivery Reviews, 2008Gold nanoparticles (AuNPs) provide non-toxic carriers for drug and gene delivery applications. With these systems, the gold core imparts stability to the assembly, while the monolayer allows tuning of surface properties such as charge and hydrophobicity.
Ghosh, P +4 more
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