Surface modification of metallic Co nanoparticles

Matoussevitch, Nina; Gorschinski, A.; Habicht, W.; Bolle, Jens; Dinjus, E.; Bönnemann, Helmut; Behrens, Silke

doi:10.1016/j.jmmm.2006.10.1203

Cited by 31 publications

(11 citation statements)

References 13 publications

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“…[117, 118, 120] Having a biocompatible shell around toxic core material enables reduction in their toxicity, for example, coated quantum dots [121] or cobalt NPs. [122] Expensive nanomaterials can be formed as shells around inexpensive core nanomaterials. This is particularly useful in catalysis.…”

Section: 0 Core-shell Magnetic Nanomaterials For Hyperthermia-basedmentioning

confidence: 99%

Magnetic nanomaterials for hyperthermia-based therapy and controlled drug delivery

Kumar

Mohammad

2011

Advanced Drug Delivery Reviews

1,434

874

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Previous attempts to review the literature on magnetic nanomaterials for hyperthermia-based therapy focused primarily on magnetic fluid hyperthermia (MFH) using mono metallic/metal oxide nanoparticles. The term “Hyperthermia” in the literature was also confined only to include use of heat for therapeutic applications. Recently, there have been a number of publications demonstrating magnetic nanoparticle-based hyperthermia to generate local heat resulting in the release of drugs either bound to the magnetic nanoparticle or encapsulated within polymeric matrices. In this review article, we present a case for broadening the meaning of the term “hyperthermia” by including thermotherapy as well as magnetically modulated controlled drug delivery. We provide a classification for controlled drug delivery using hyperthermia: Hyperthermia-based controlled Drug delivery through Bond Breaking (DBB) and Hyperthermia-based controlled Drug delivery through Enhanced Permeability (DEP). The review also covers, for the first time, core-shell type magnetic nanomaterials, especially nanoshells prepared using layer-by-layer self-assembly, for the application of hyperthermia-based therapy and controlled drug delivery. The highlight of the review article is to portray potential opportunities in the combination of hyperthermia-based therapy and controlled drug release paradigms for successful application in personalized medicine.

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Section: 0 Core-shell Magnetic Nanomaterials For Hyperthermia-basedmentioning

confidence: 99%

Magnetic nanomaterials for hyperthermia-based therapy and controlled drug delivery

Kumar

Mohammad

2011

Advanced Drug Delivery Reviews

1,434

874

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“…Cobalt nanomaterial (CoNM) exhibits high resistance to oxidation, corrosion, and wear. CoNM have been prepared by several synthetic methods including solvothermal process [2], thermal decomposition method [3], hydrothermal microemulsion process [4], high temperature solution phase method [5], and reduction by NaBH 4 at room temperature [6]. Among all, the wet chemical reduction method has the advantage over the others in easy control of the reaction process.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Highly Stable Cobalt Nanomaterial Using Gallic Acid and Its Application in Catalysis

Naz

Khaskheli

Aljabour

et al. 2014

Advances in Chemistry

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We report the room temperature (25–30°C) green synthesis of cobalt nanomaterial (CoNM) in an aqueous medium using gallic acid as a reducing and stabilizing agent. pH 9.5 was found to favour the formation of well dispersed flower shaped CoNM. The optimization of various parameters in preparation of nanoscale was studied. The AFM, SEM, EDX, and XRD characterization studies provide detailed information about synthesized CoNM which were of 4–9 nm in dimensions. The highly stable CoNM were used to study their catalytic activity for removal of azo dyes by selecting methyl orange as a model compound. The results revealed that 0.4 mg of CoNM has shown 100% removal of dye from 50 μM aqueous solution of methyl orange. The synthesized CoNM can be easily recovered and recycled several times without decrease in their efficiency.

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“…Co materials exhibit high resistance to oxidation, corrosion and wear. Many synthetic methods have been developed to prepare cobalt nanoparticles including solvothermal process 13,14 , thermal decomposition method 15 , hydrothermal microemulsion process 16 and high temperature solution phase method 17 .…”

Section: Introductionmentioning

confidence: 99%

Superparamagnetic Cobalt Nanocomposites Synthesized by Solvothermal Synthesis in a Single Step

Castillo

Santana

2021

J. Chil. Chem. Soc.

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In this work we are reporting the synthesis and characterization of superparamagnetic cobalt nanocomposites obtained from the direct reduction of cobalt(II) salts on matrices of graphene (G) and carbon nanodisks/nanocones (Ndc) in the presence of L-serine under solvothermal conditions. The synthesized nanocomposites were characterized by X-ray powder diffraction techniques identifying in all cases the peaks associated to the matrix (G or Ndc) and three peaks at 2θ values of 44,2; 51,5; 75,8, which correspond to the Miller indices ( 111), ( 200), ( 220), characteristic of a face-centered cubic Co 0 phase. The SEM images of cobalt nanocomposites show that that using of a matrix changes the size and distribution of the metallic agglomerates, being possible to observe a more homogenous dispersion of the cobalt agglomerates on the Ndc matrix surface. Cobalt nanocomposites have a superparamagnetic behavior presenting Hc values of 14 and 60 Oe for NPs-Co 0 /G and NPs-Co 0 /Ndc respectively. The superparamagnetic property of the cobalt nanoparticles and unique properties of the matrix would generate a magnetic material with interesting properties to be studied. More research is needed to give it a potential application.

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Surface modification of metallic Co nanoparticles

Cited by 31 publications

References 13 publications

Magnetic nanomaterials for hyperthermia-based therapy and controlled drug delivery

Magnetic nanomaterials for hyperthermia-based therapy and controlled drug delivery

Synthesis of Highly Stable Cobalt Nanomaterial Using Gallic Acid and Its Application in Catalysis

Superparamagnetic Cobalt Nanocomposites Synthesized by Solvothermal Synthesis in a Single Step

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