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magnetic separation of gold nanoparticles

May 01, 2005 1.. IntroductionIn recent years, much attention has been given to magnetic nanoparticles as magnetic carriers for biomedical applications such as drug delivery and targeting, MRI, DNA and RNA purification, immunoassays, cell separation and hyperthermia , , , , .For these uses, the surface of the magnetic nanoparticle should be modified by an appropriate linker compound to bind functional

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  • Recyclable Photo-Thermal Nano-Aggregates of Magnetic
    Recyclable Photo-Thermal Nano-Aggregates of Magnetic

    The synthesis of short gold nanorod, conjugation with magnetic nanoparticle and its subsequent laser exposure provides a rapid and reiterated photo-thermal effect with enhanced magnetic separation for efficient bactericidal application in water samples

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  • Gold Nanoparticle-Coated Starch Magnetic Beads for the
    Gold Nanoparticle-Coated Starch Magnetic Beads for the

    Apr 13, 2021 Here, we report gold nanoparticle-coated starch magnetic beads ([email protected]) that were prepared by in situ synthesis of AuNPs on the surface of SMBs. Upon functionalization of the surface with a specific antibody, the [email protected] were found to be effective in separating and concentrating the targ

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  • Magnetic Solid Phase Extraction as a Promising Technique
    Magnetic Solid Phase Extraction as a Promising Technique

    Magnetic Solid Phase Extraction Used for the Separation of Gold Ions and Gold Nanoparticles Gold nanoparticles (AuNPs) are extensively used in a wide variety of areas, including electronics and nanotechnology [ 66 ]

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  • Separation and purification of hydrophobic magnetite-gold
    Separation and purification of hydrophobic magnetite-gold

    Apr 02, 2016 The authors describe a multiphase density gradient centrifugation method for the separation and purification of hybrid nanoparticles (NPs). The method was applied to the purification of NPs consisting of magnetite gold NPs of type Fe 3 O 4 @Au and coated with 1-dodecylthiol. A density gradient has been established by forming cushions of a multicomponent solution composed of (a) a nonlinear

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  • Core-shell AuNRs@Ag-enhanced and magnetic separation
    Core-shell [email protected] and magnetic separation

    2 days ago Highly sensitive SERS immunosensor for the detection of amantadine in chicken based on flower-like gold nanoparticles and magnetic bead separation Food Chem. Toxicol. , 118 ( 2018 ) , pp. 589 - 594 Article Download PDF View Record in Scopus Google Scholar

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  • Nucleic acid hybridization on an electrically
    Nucleic acid hybridization on an electrically

    Aug 27, 2018 An ultrasensitive miRNA sensor based on gold-coated magnetic nanoparticles modified with redox-labelled probe DNA is capable of detecting miRNA at a concentration of 10 aM to 1 nM in unprocessed

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  • In-situ liquid cell transmission electron microscopy
    In-situ liquid cell transmission electron microscopy

    Jan 29, 2018 Besides, the non-magnetic nature of the gold nanoparticles excludes the presence of a magnetic force. Therefore, for pairwise particles at D 0.12 nm, the interaction potential can be expressed

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  • Magnetic nanocatalysts: supported metal nanoparticles for
    Magnetic nanocatalysts: supported metal nanoparticles for

    Oct 01, 2013 High performance magnetic separation of gold nanoparticles for catalytic oxidation of alcohols. Green Chem. 2010, 12, 144–149. Search in Google Scholar [57] Oliveira RL, Zanchet D, Kiyohara PK, Rossi LM. On the sStabilization of gold nanoparticles over silica-based magnetic supports modified with organosilanes. Chem. Eur. J. 2011, 17, 4626

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  • Applications of magnetic nanoparticles in biomedical
    Applications of magnetic nanoparticles in biomedical

    Jun 01, 2016 Design of magnetic nanoparticles for biomedical applications. MNPs mostly consist of a magnetic core encapsulated by a protective inorganic shell bearing polymeric ligands displaying fluorescent tags for imaging, therapeutics, and affinity ligands for targeting and separation of biomolecules and cells. Over the last decades, the use of magnetic

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  • High-yield aqueous synthesis of multi-branched iron oxide
    High-yield aqueous synthesis of multi-branched iron oxide

    Sep 03, 2014 The high product yield of multi-branched core–shell Fe 3−x O 4 @Au magnetic nanoparticles was synthesized used as magnetic separation platform and surface-enhanced Raman scattering (SERS) substrates. The multi-branched magnetic nanoparticles were prepared by a seed-mediated growth approach using magnetic gold nanospheres as the seeds and subsequent reduction of metal salt with ascorbic

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  • Nuclear/MR Magnetic Nanoparticle‐based Probes for
    Nuclear/MR Magnetic Nanoparticle‐based Probes for

    Functionalized magnetic and gold NPs (MNPs and GNPs, respectively) have produced the potential of nanoparticles as sensitive multifunctional probes for molecular imaging, photothermal therapy and

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  • Gold Coated Magnetic Nanoparticles | Nanoparticles
    Gold Coated Magnetic Nanoparticles | Nanoparticles

    The 25nm magnetic nanoparticles are highly monodisperse nano-octahedrons of magnetite capped with citrate anions. These nanoparticles can be employed as platforms for many applications such as magnetic separation, hyperthermia, biosensors. CITRATE STABILIZED: Attachment of (bio)molecules containing thiols groups –SH. CARBOXILATED :

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  • A flexible lab-on-a-chip for the synthesis and magnetic
    A flexible lab-on-a-chip for the synthesis and magnetic

    A flexible lab-on-a-chip for the synthesis and magnetic separation of magnetite decorated with gold nanoparticles ... A flexible lab-on-a-chip for the synthesis and magnetic separation of magnetite decorated with gold nanoparticles. Lab Chip, 2015. Aldo Job. Fl vio Camargo Cabrera. Download PDF. Download Full PDF Package. This paper

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  • DNA Separation Using Gold/Magnetic Iron-oxide
    DNA Separation Using Gold/Magnetic Iron-oxide

    single-nanosized gold nanograins immobilized on the surface of iron-oxide nanoparticles. Our composite nanoparticles can magnetically separate functional biomolecules connected onto the gold grains via Au-S bonds. We have performed magnetic separation tests used glutathione and

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