310050

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Showing 1-30 of 87 results for "310050" within Papers

Recyclable and stable silver deposited magnetic nanoparticles with poly (vinyl pyrrolidone)-catechol coated iron oxide for antimicrobial activity.

Tamim Mosaiab et al.

Materials science & engineering. C, Materials for biological applications, 33(7), 3786-3794 (2013-08-06)

This paper introduces a facile method to make highly stable and recyclable antimicrobial magnetic nanoparticles (NPs). Initially, magnetic iron oxide nanoparticles (IONPs) were coated with poly (vinyl pyrrolidone) conjugated catechol (PVP-CCDP). Afterward, silver nanoparticles (Ag(0)) were deposited onto PVP-CCDP coated

Single phase, electrically insulating, multiferroic La-substituted BiFeO₃ prepared by mechanosynthesis.

Perejon A, et al.

Journal of Material Chemistry C, 2(39), 8398-8411 (2014)

Synthesis and characterization of superparamagnetic CoFe2O4/MWCNT hybrids for tumor-targeted therapy.

Chuanyu Sun et al.

Journal of nanoscience and nanotechnology, 13(1), 236-241 (2013-05-08)

Owing to their great potentialities of carbon nanotubes (CNTs)-based magnetic nano-composites, numerous applications of them have been found in nanotechnology, integrated functional system, and in medicine. Herein, nearly monodisperse CoFe2O4 nanoparticles have been deposited on multi-walled carbon nanotubes (MWCNTs) by

Inhibition of microbial trichloroethylene dechlorination [corrected] by Fe (III) reduction depends on Fe mineralogy: a batch study using the bioaugmentation culture KB-1.

Laiby Paul et al.

Water research, 47(7), 2543-2554 (2013-03-16)

Microbial reductive dechlorination of trichloroethylene (TCE) in groundwater can be stimulated by adding of electron donors. However, side reactions such as Fe (III) reduction competes with this reaction. This study was set-up to relate the inhibition of microbial TCE dechlorination

Functionalization of iron oxide nanoparticles with biosurfactants and biocompatibility studies.

J Sangeetha et al.

Journal of biomedical nanotechnology, 9(5), 751-764 (2013-06-28)

We present methodologies to functionalize iron oxide (Fe3O4) nanoparticles with biosurfactants and biocompatibility results. Positively charged Fe3O4 nanoparticles of average hydrodynamic size -26 nm is functionalized with four different molecules of interest, viz., surfactin, rhamnolipid, polyethylene glycol (PEG) and dextran.

Comparison of contrast agents for atherosclerosis imaging using cultured macrophages: FDG versus ultrasmall superparamagnetic iron oxide.

Tomoko Satomi et al.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 54(6), 999-1004 (2013-05-15)

Various noninvasive imaging methods have been developed to evaluate atherosclerotic plaques. Among them, (18)F-FDG PET and MR imaging with ultrasmall superparamagnetic iron oxide particles (USPIO) have been used to quantify plaque inflammation. Both methods are based on the efficient uptake

Journal of Nanoscience and Nanotechnology null

The superparamagnetic iron oxide is equivalent to the Tc99 radiotracer method for identifying the sentinel lymph node in breast cancer.

I T Rubio et al.

European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology, 41(1), 46-51 (2014-12-04)

Preoperative injection of Tc99 is standardly performed before sentinel lymph node biopsy (SLN) for breast cancer. Multiple questions have arisen concerning appropriate technique for SLNBs including site of injection, timing and injection material. The aim of this study was to

Tumorigenic response in lung tumor susceptible A/J mice after sub-chronic exposure to calcium chromate or iron (III) oxide.

Patti C Zeidler-Erdely et al.

Toxicology letters, 334, 60-65 (2020-09-23)

Iron oxides are Group 3 (not classifiable as to its carcinogenicity to humans) according to the International Agency for Research on Cancer (IARC). Occupational exposures during iron and steel founding and hematite underground mining as well as other iron predominant

Dynamic investigation of interaction of biocompatible iron oxide nanoparticles with epithelial cells for biomedical applications.

Alice Panariti et al.

Journal of biomedical nanotechnology, 9(9), 1556-1569 (2013-08-29)

Magnetic nanoparticles have emerged as important players in current research in modern medicine since they can be used in medicine for diagnosis and/or therapeutic treatment of diseases. Among many therapeutic applications of iron-based nanoparticles, drug delivery and photothermal therapy are

Controlled-release triple anti-inflammatory therapy based on novel gastroretentive sponges: characterization and magnetic resonance imaging in healthy volunteers.

Mina Ibrahim Tadros et al.

International journal of pharmaceutics, 472(1-2), 27-39 (2014-06-15)

The current work aimed to develop novel composite sponges of chitosan (CH)-chondroitin sulfate (CS) as a low-density gastroretentive delivery system for lornoxicam (LOR). This triple anti-inflammatory therapy-loaded matrices are expected to expand and float upon contact with gastric fluids for

Estimated background doses of [67Ga]-DTPA-USPIO in normal Balb/c mice as a potential therapeutic agent for liver and spleen cancers.

Saeed Shanehsazzadeh et al.

Nuclear medicine communications, 34(9), 915-925 (2013-07-31)

The aim of this study was to evaluate the biodistribution of dextran-coated iron oxide nanoparticles labeled with gallium-67 (Ga) in various organs by intravenous injection in Balb/c mice. Ultrasmall superparamagnetic iron oxide (USPIO) was successively labeled with Ga-chloride after chelation

Transferrin receptor-1 iron-acquisition pathway - synthesis, kinetics, thermodynamics and rapid cellular internalization of a holotransferrin-maghemite nanoparticle construct.

Hélène Piraux et al.

Biochimica et biophysica acta, 1830(8), 4254-4264 (2013-05-08)

Targeting nanoobjects via the iron-acquisition pathway is always reported slower than the transferrin/receptor endocytosis. Is there a remedy? Maghemite superparamagnetic and theragnostic nanoparticles (diameter 8.6nm) were synthesized, coated with 3-aminopropyltriethoxysilane (NP) and coupled to four holotransferrin (TFe2) by amide bonds

Development of a mucin4-targeting SPIO contrast agent for effective detection of pancreatic tumor cells in vitro and in vivo.

Shou-Cheng Wu et al.

Journal of medicinal chemistry, 56(22), 9100-9109 (2013-10-24)

In search of a unique and reliable contrast agent targeting pancreatic adenocarcinoma, new multifunctional nanoparticles (MnMEIO-silane-NH2-(MUC4)-mPEG NPs) were successfully developed in this study. Mucin4-expression levels were determined through different imaging studies in a panel of pancreatic tumor cells (HPAC, BxPC-3

Remote regulation of glucose homeostasis in mice using genetically encoded nanoparticles.

Sarah A Stanley et al.

Nature medicine, 21(1), 92-98 (2014-12-17)

Means for temporally regulating gene expression and cellular activity are invaluable for elucidating underlying physiological processes and would have therapeutic implications. Here we report the development of a genetically encoded system for remote regulation of gene expression by low-frequency radio

Porous FeOx/BiVO4-deltaS0.08: highly efficient photocatalysts for the degradation of methylene blue under visible-light illumination.

Zhenxuan Zhao et al.

Journal of environmental sciences (China), 25(10), 2138-2149 (2014-02-06)

Porous S-doped bismuth vanadate with an olive-like morphology and its supported iron oxide (y wt.% FeOx/BiVO4-deltaS0.08, y = 0.06, 0.76, and 1.40) photocatalysts were fabricated using the dodecylamine-assisted alcohol-hydrothermal and incipient wetness impregnation methods, respectively. It is shown that the

Biogenic synthesis of nanostructured iron compounds: applications and perspectives.

Amedea B Seabra et al.

IET nanobiotechnology, 7(3), 90-99 (2013-09-14)

'Green nanotechnology' has attracted increasing attention in recent years because of the possibility to reduce and/or eliminate toxic substances. Indeed, biogenic syntheses of nanomaterials, such as nanoparticles (NPs), are considered economic and valuable alternatives for the production of metallic NPs

Superparamagnetic iron oxide magnetic nanomaterial-labeled bone marrow mesenchymal stem cells for rat liver repair after hepatectomy.

Shiyu Zhao et al.

The Journal of surgical research, 191(2), 290-301 (2014-05-02)

Superparamagnetic iron oxide magnetic nanomaterials (SPIO) are tracers used for treatment of central nervous and cardiovascular system complications in animal models. The present study investigated survival and proliferation of SPIO-labeled bone marrow mesenchymal stem cells (BMSCs) to determine their potential

Potential biological role of laccase from the sponge Suberites domuncula as an antibacterial defense component.

Qiang Li et al.

Biochimica et biophysica acta, 1850(1), 118-128 (2014-12-03)

Laccases are copper-containing enzymes that catalyze the oxidation of a wide variety of phenolic substrates. We describe the first poriferan laccase from the marine demosponge Suberites domuncula. This enzyme comprises three characteristic multicopper oxidase homologous domains. Immunohistological studies revealed that

Electrospun NiFe2O4 nanofibers as high capacity anode materials for Li-ion batteries.

Young-In Lee et al.

Journal of nanoscience and nanotechnology, 13(10), 7138-7141 (2013-11-20)

Ultra-long NiFe2O4 nanofibers were synthesized by a simple electrospinning process followed by thermal treatment. The NiFe2O4 nanofibers are polycrystalline with average diameter of 218 nm and lengths up to several millimeters. When evaluated for their lithium-storage properties, the electrospun NiFe2O4

Anoxic photochemical oxidation of siderite generates molecular hydrogen and iron oxides.

J Dongun Kim et al.

Proceedings of the National Academy of Sciences of the United States of America, 110(25), 10073-10077 (2013-06-05)

Photochemical reactions of minerals are underappreciated processes that can make or break chemical bonds. We report the photooxidation of siderite (FeCO3) by UV radiation to produce hydrogen gas and iron oxides via a two-photon reaction. The calculated quantum yield for

Enhanced oxidation of nanoparticles through strain-mediated ionic transport.

Andrew Pratt et al.

Nature materials, 13(1), 26-30 (2013-11-05)

Geometry and confinement effects at the nanoscale can result in substantial modifications to a material's properties with significant consequences in terms of chemical reactivity, biocompatibility and toxicity. Although benefiting applications across a diverse array of environmental and technological settings, the

Synthesis and characterization of CoFe2O4/polyaniline nanocomposites for electromagnetic interference applications.

K Praveena et al.

Journal of nanoscience and nanotechnology, 14(6), 4371-4376 (2014-04-18)

The Cobalt ferrite (CoFe2O4) powders were synthesized by Co-precipitation method. The as prepared ferrite powders were incorporated into a polyaniline matrix at various volumetric ratios. The as prepared composites of ferrite and polyaniline powders were characterized using X-ray diffraction (XRD)

Light-induced reduction of natural iron (III) oxide and its relevance to phytoplankton.

Finden DAS, et al.

Nature, 309, 783-784 (1984)

Biophysical interactions of polyamidoamine dendrimer coordinated Fe3O4 nanoparticles with insulin.

Mayuri Samant et al.

Journal of biomedical nanotechnology, 10(7), 1286-1293 (2014-05-09)

Advanced delivery systems, such as nano/micro carriers have not been studied significantly for their molecular interactions with serum proteins and other biologically relevant macromolecules. Here, we investigated the effect of surface chemistry of iron oxide (Fe3O4) nanoparticles on molecular interactions

The use of hydrophilic poly(N,N-dimethylacrylamide) for promoting engulfment of magnetic gamma-Fe2O3 nanoparticles by mammalian cells.

Beata Anna Zasońska et al.

Journal of biomedical nanotechnology, 9(3), 479-491 (2013-04-30)

gamma-Fe2O3 nanoparticles obtained by coprecipitation of Fe(II) and Fe(III) chlorides with a base and subsequent oxidation were coated with a shell of hydrophilic biocompatible poly(N,N-dimethylacrylamide) (PDMAAm). Various initiators were attached to the iron oxide surface to enable the use of

The Inflammatory Effect of Iron Oxide and Silica Particles on Lung Epithelial Cells.

L J Williams et al.

Lung, 197(2), 199-207 (2019-02-16)

Our understanding of the respiratory health consequences of geogenic (earth-derived) particulate matter (PM) is limited. Recent in vivo evidence suggests that the concentration of iron is associated with the magnitude of the respiratory response to geogenic PM. We investigated the

Comparison of the sorption behaviors and mechanisms of perfluorosulfonates and perfluorocarboxylic acids on three kinds of clay minerals.

Lixia Zhao et al.

Chemosphere, 114, 51-58 (2014-08-13)

The sorption of four perfluoroalkyl acids (PFAAs) [perfluorooctane sulfonate (PFOS), perfluorohexane sulfonate (PFHxS), perfluorooctanoic acid (PFOA) and perfluorohexanoic acid (PFHxA)] on three typical minerals [montmorillonite (MM), kaolinite (KL) and hematite (HM)] was studied. The sorption of PFOS and PFHxS was

Core-shell Fe3O4-Au magnetic nanoparticles based nonenzymatic ultrasensitive electrochemiluminescence immunosensor using quantum dots functionalized graphene sheet as labels.

Weiyan Liu et al.

Analytica chimica acta, 770, 132-139 (2013-03-19)

In this paper, a novel, low-cost electrochemiluminescence (ECL) immunosensor using core-shell Fe3O4-Au magnetic nanoparticles (AuMNPs) as the carriers of the primary antibody of carbohydrate antigen 125 (CA125) was designed. Graphene sheet (GS) with property of good conductivity and large surface

Inorganic particulate matter modulates non-typeable Haemophilus influenzae growth: a link between chronic bacterial infection and geogenic particles.

L J Williams et al.

Environmental geochemistry and health, 42(7), 2137-2145 (2019-12-18)

Australian Aboriginal populations have unacceptably high rates of bronchiectasis. This disease burden is associated with high rates of detection of pathogenic bacteria, particularly non-typeable Haemophilus influenzae (NTHi). While there is evidence to suggest that exposure to inorganic particulate matter (PM)

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