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Showing 1-30 of 38 results for "298174" within Papers
Sougata Ghosh et al.
Journal of nanobiotechnology, 10, 17-17 (2012-05-03)
Novel approaches for synthesis of gold nanoparticles (AuNPs) are of utmost importance owing to its immense applications in diverse fields including catalysis, optics, medical diagnostics and therapeutics. We report on synthesis of AuNPs using Gnidia glauca flower extract (GGFE), its
Sung Yong Jung et al.
The international journal of cardiovascular imaging, 28(8), 1853-1858 (2012-02-23)
To measure instantaneous velocity fields of venous blood flow in a rat using X-ray particle tracking method. Gold nanoparticles (AuNPs) incorporated chitosan microparticles were applied as biocompatible flow tracers. After intravenous injection of the AuNP-chitosan particles into 7- to 9-week-old
Sudip Mukherjee et al.
Nanotechnology, 23(45), 455103-455103 (2012-10-16)
The biological approach to synthesis of AuNPs is eco-friendly and an ideal method to develop environmentally sustainable nanoparticles alternative to existing methods. We have developed a simple, fast, clean, efficient, low-cost and eco-friendly single-step green chemistry approach for the synthesis
Yumeki Tani et al.
Royal Society open science, 6(5), 190293-190293 (2019-06-21)
Here we found that gold nanoparticles (AuNPs) enhance the optical force acting on vesicles prepared from phospholipids via hydrophobic and electrostatic interactions. A laser beam was introduced into a cuvette filled with a suspension of vesicles and it accelerated them
Hsien-Ting Chiu et al.
Theranostics, 7(12), 3034-3052 (2017-08-26)
Recently, living cells with tumor-homing properties have provided an exciting opportunity to achieve optimal delivery of nanotherapeutic agents. However, premature payload leakage may impair the host cells, often leading to inadequate
Interplay between gold nanoparticle biosynthesis and metabolic activity of cyanobacterium Synechocystis sp. PCC 6803.
Monica Focsan et al.
Nanotechnology, 22(48), 485101-485101 (2011-11-11)
Walaa I El-Ghareb et al.
International journal of pharmaceutics, 586, 119514-119514 (2020-06-23)
The development of cancer theranostic nanomedicines is recommended to concurrently achieve and evaluate the therapeutic benefit and progress. The current work aims to develop gallic acid-gold nanoparticles (GA-Au NPs) as a theranostic probe for 99mTc-Doxorubicin (99mTc-DOX) based on the spatiotemporal
Muhammad Altaf et al.
Oncotarget, 8(1), 490-505 (2016-11-27)
We synthesized, characterized and tested in a panel of cancer cell lines, nine new bipyridine gold(III) dithiocarbamate-containing complexes. In vitro studies demonstrated that compounds 1, 2, 4, 5, 7 and 8 were the most cytotoxic in prostate, breast, ovarian cancer
Mojtaba Shamsipur et al.
Analytica chimica acta, 1055, 7-16 (2019-02-21)
This study introduces a signal amplification strategy rely on incorporating a specific polymer film between two typical nanostructured layers, aiming to improve the electrical properties of the platform to be able to transduce small binding event through sub-femtomolar detection of
Limin Yang et al.
Talanta, 89, 136-141 (2012-01-31)
A simple and effective strategy was proposed for synthesis of AuNPs@polyaniline (AuNPs@PANI) core-shell nanocomposites. AuNPs@PANI nanocomposites were prepared by one-step chemical oxidative polymerization of aniline using chloroaurate acid as the oxidant and AuNPs as the seeds. The synthesized AuNPs@PANI nanocomposites
Tailored microcrystal growth: a facile solution-phase synthesis of gold rings.
Hyojong Yoo et al.
Advanced materials (Deerfield Beach, Fla.), 23(38), 4431-4434 (2011-10-01)
Douglas E. Berning et al.
Inorganic chemistry, 36(13), 2765-2769 (1997-06-18)
The reactions of water-soluble bisphosphines (HOH(2)C)(2)PC(6)H(4)P(CH(2)OH)(2) (1) and (HOH(2)C)(2)PCH(2)CH(2)P(CH(2)OH)(2) (2) with NaAuCl(4), in aqueous media, or AuClPPh(3), in biphasic media (aqueous/organic), produced the water/alcoholic-soluble Au(I) complexes [Au{(HOH(2)C)(2)PC(6)H(4)P(CH(2)OH)(2)}(2)]Cl (3), [Au{(HOH(2)C)(2)PCH(2)CH(2)P(CH(2)OH)(2)}(2)]Cl (4), and [Au(2){(HOH(2)C)(2)PCH(2)CH(2)P(CH(2)OH)(2)}(2)]Cl(2) (5) in near quantitative yields. Stability and cysteine-challenge
Stefano Frasca et al.
Bioelectrochemistry (Amsterdam, Netherlands), 87, 33-41 (2012-01-03)
The present study reports a facile approach for sulfite biosensing, based on enhanced direct electron transfer of a human sulfite oxidase (hSO) immobilized on a gold nanoparticles modified electrode. The spherical core shell AuNPs were prepared via a new method
Qingshuo Chen et al.
Talanta, 89, 142-148 (2012-01-31)
In this work, we utilize the triangular gold nanoparticles (AuNPs) prepared by trisodium citrate reduction of HAuCl(4) in presence of nonionic fluorosurfactant (FSN) as a novel chemiluminescence (CL) probe for the determination of captopril. Captopril can induce a sharp decrease
Wenbo Lu et al.
Journal of hazardous materials, 197, 320-326 (2011-10-25)
In this paper, we develop a cost-effective and simple route for the synthesis of Au nanoparticles (AuNPs) decorated graphene oxide (GO) nanosheets using polyoxyethylene sorbitol anhydride monolaurate (TWEEN 20) as a stabilizing agent for GO as well as a reducing
Abdulrahman M Elbagory et al.
International journal of nanomedicine, 14, 9007-9018 (2019-12-11)
Macrophages and Natural Killer (NK) cells are an integral part of the innate immune system. These cells produce pro-inflammatory cytokines in response to bacterial infections. However, prolonged inflammation can be a contributing factor in the etiology of several diseases such
Andrew R Garcia et al.
Colloids and surfaces. B, Biointerfaces, 105, 167-172 (2013-02-05)
Fluorescent insulin fibrils gold nanoclusters (Au NCs) have been synthesized through the reduction of gold by human insulin in fibrillated form. Likewise, nanocluster formation has been regulated by insulin, working as a protein-based template. Environment- and surface-controlled experiments have shown
Sergey S Zalesskiy et al.
Journal of the American Chemical Society, 135(9), 3550-3559 (2013-01-02)
Soluble gold precatalysts, aimed for homogeneous catalysis, under certain conditions may form nanoparticles, which dramatically change the mechanism and initiate different chemistry. The present study addresses the question of designing gold catalysts, taking into account possible interconversions and contamination at
Shenting Zhu et al.
International journal of nanomedicine, 14, 5017-5032 (2019-08-03)
Background: Epigallocatechin gallate (EGCG), the major anti-inflammatory compound in green tea, has been shown to suppress osteoclast (OC) differentiation. However, the low aqueous solubility of EGCG always leads to poor bioavailability, adverse effects, and several drawbacks for clinical applications. Purpose:
Swee Jen Cho et al.
Physical chemistry chemical physics : PCCP, 14(45), 15793-15801 (2012-10-23)
Deposition of nanostructured metals on substrates is important for the fundamental study and practical application, such as in optics and catalysis. In this paper, we report the deposition of gold (Au) nanoplates and porous platinum (Pt) structures on substrates through
Umar M Badeggi et al.
Biomolecules, 10(3) (2020-03-19)
In this study, procyanidins fractions of dimers and trimers (F1-F2) from the Leucosidea sericea total extract (LSTE) were investigated for their chemical constituents. The total extract and the procyanidins were employed in the synthesis of gold nanoparticles (Au NPs) and
Xianqing Tian et al.
Talanta, 93, 79-85 (2012-04-10)
Graphene decorated with gold nanoparticles (AuNPs-β-CD-Gra) has been synthesized by in situ thermal reduction of graphene oxide and HAuCl(4) with β-cyclodextrin (β-CD) under alkaline condition. The AuNPs-β-CD-Gra product was well characterized by infrared spectroscopy, X-ray powder diffraction, scanning electron microscopy
Xiaokong Liu et al.
Langmuir : the ACS journal of surfaces and colloids, 28(38), 13720-13726 (2012-09-08)
In this report, we demonstrate a rapid and simple seeded growth method for synthesizing monodisperse, quasi-spherical, citrate-stabilized Au nanoparticles (Au NPs) via H(2)O(2) reduction of HAuCl(4). Au NPs with diameter ranging from 30 to 230 nm can be synthesized by
S Veeraapandian et al.
Journal of biomedical nanotechnology, 8(1), 140-148 (2012-04-21)
Escherichia coli is used for eco-friendly extra cellular synthesis of metallic silver and gold nanoparticles. This is achieved by reducing AgNO3 and HAuCl4 solutions respectively under ambient conditions by using the extra cellular protein produced by the microorganism. The proteins
Jinan Chai et al.
Proceedings of the National Academy of Sciences of the United States of America, 108(49), 19521-19525 (2011-11-23)
The ability to control the placement of individual protein molecules on surfaces could enable advances in a wide range of areas, from the development of nanoscale biomolecular devices to fundamental studies in cell biology. Such control, however, remains a challenge
Andriy Horechyy et al.
Journal of colloid and interface science, 578, 441-451 (2020-06-15)
We investigate the self-assembly of cylinder-forming polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) block copolymers (BCP) mixed with metal nanoparticles (NP) coated with short-chain polystyrene (PS) ligands. The NP formed hierarchical superstructures under confinement of cylindrical PS domains of PS-b-P4VP BCP. The complexity of NP
Aruni Shajkumar et al.
Journal of colloid and interface science, 491, 246-254 (2017-01-01)
Catalytically active Au@hollow-SiO
Haolan Xu et al.
Langmuir : the ACS journal of surfaces and colloids, 28(36), 13060-13065 (2012-08-22)
Polydopamine (PDA)-Au Janus particles were obtained by simply adding HAuCl(4) to a PDA particle suspension, prepared via self-polymerization of dopamine in basic solution at room temperature. The structures of the PDA-Au particles are readily controlled by electrostatic repulsion between the
Jin Ran et al.
Journal of hazardous materials, 241-242, 63-72 (2012-10-11)
Novel guanidylated hollow fiber membranes are prepared based on brominated poly (2,6-dimethyl-1,4-phenylene oxide) (BPPO) under mild reaction conditions. 1H-pyrazole-1-carboxamidine hydrochloride (HPCA) is employed for the guanidylation in aqueous solution at room temperature. The obtained guanidylated PPO hollow fiber membranes (GPPO
Michele S Majoumouo et al.
Molecules (Basel, Switzerland), 25(19) (2020-10-03)
Scientists have demonstrated the potential of plant materials as 'green' reducing and stabilizing agents for the synthesis of gold nanoparticles (AuNPs) and opened new ecofriendly horizons to develop effective and less harmful treatment strategies. The current study demonstrated the use
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