Gd–Si oxide mesoporous nanoparticles with pre-formed morphology prepared from a Prussian blue analogue template

Cabrera-García, Alejandro; Vidal‐Moya, Alejandro; Bernabéu, A; Sánchez‐González, Javier; Férnández, Eduardo F.; Botella, Pablo

doi:10.1039/c5dt01928a

Cited by 11 publications

(4 citation statements)

References 42 publications

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“…Electron microscopy study by TEM and FESEM ( Figure 3 ) confirms that morphology does not experience significant changes, although nanosized rods present a slightly smaller average diameter (75 nm). As already detected with other morphologies at the nanoscale [ 38 ], our transformed particles are fully dense, what contrasts with observations by Lou and co-workers over Prusian Blue microbox derivatives [ 40 , 41 ]. We attribute such different material features to the nanoscale, as the inward OH − ion diffusion is faster in smaller particles and 2Gd(OH) 3 ·3SiO 2 · x H 2 O moiety precipitates quickly to refill the empty space left by released [Fe(CN) 6 ] 3− species.…”

Section: Resultscontrasting

confidence: 93%

“…On this basis, we introduce here a novel approach for the synthesis of Gd-Si oxide nanoparticles with high Gd 3+ atom density and excellent stability in physiological conditions. For this purpose, we used an optimized method developed by our group [ 38 ], wherein Prussian Blue analogue (PBA) Gd(H 2 O) 4 [Fe(CN) 6 ] is used as a sacrificial template by reacting with soluble silicate. By overlapping kinetics of silica condensation with [Fe(CN) 6 ] 3− removal, we are able to synthesize particles of an oxide nanocomposite with equal shape and size than former PBA crystallites.…”

Section: Introductionmentioning

confidence: 99%

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Gd-Si Oxide Nanoparticles as Contrast Agents in Magnetic Resonance Imaging

et al. 2016

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We describe the synthesis, characterization and application as contrast agents in magnetic resonance imaging of a novel type of magnetic nanoparticle based on Gd-Si oxide, which presents high Gd3+ atom density. For this purpose, we have used a Prussian Blue analogue as the sacrificial template by reacting with soluble silicate, obtaining particles with nanorod morphology and of small size (75 nm). These nanoparticles present good biocompatibility and higher longitudinal and transversal relaxivity values than commercial Gd3+ solutions, which significantly improves the sensitivity of in vivo magnetic resonance images.

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Section: Resultscontrasting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Gd-Si Oxide Nanoparticles as Contrast Agents in Magnetic Resonance Imaging

et al. 2016

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“…6 and involves a three-step process. 57 Three-layered double hydroxide (LDH) hollow nano-polyhedra were synthesized with ZIF-67, [MĲ2-MIM) x ], where M = Co (1), M = Mg (11) and M = Ni (12), nanocrystals as the templates, as shown in Fig. 7.…”

Section: Other Nanomaterialsmentioning

confidence: 99%

Synthesis of nanomaterials with desirable morphologies from metal–organic frameworks for various applications

Mirzadeh

Akhbari

2016

CrystEngComm

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Metal-organic frameworks (MOFs) are very useful nanoporous materials that have attracted much attention in recent years because of their potential in gas storage, separation, luminescence, magnetic materials, and catalysis. Furthermore, in this review, we report the utilization of MOFs as precursors for the synthesis of nanomaterials. In addition to the utilization of MOFs as precursors for the synthesis of nanomaterials with various morphologies, such as nanoparticles, nanorods, and nanosheets, they can be used as a template for the formation of nanomaterials with the same morphology as the initial MOFs. It seems that the apohost of MOFs can be used as a template in the synthesis of nanomaterials. In order to investigate this, we carried out the synthesis of cobalt oxide, copper oxide, nickel oxide, zinc oxide, hematite, and other nanomaterials from MOFs.

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“…PB analogues can be synthesized using various techniques such as sol-gel or using surfactants like cetyltrimethyl ammonium bromide (CTAB), ethylene diaminetetraacetate (EDTA) or polymers such as poly(vinylpyrrolidone), or in presence of mesostructured silica, porous alumina, and nafion [ 16 – 18 ].…”

Section: Introductionmentioning

confidence: 99%

Aegle marmelosMediated Green Synthesis of Different Nanostructured Metal Hexacyanoferrates: Activity against Photodegradation of Harmful Organic Dyes

2016

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Prussian blue analogue potassium metal hexacyanoferrate (KMHCF) nanoparticles Fe4[Fe(CN)6]3 (FeHCF), K2Cu3[Fe(CN)6]2 (KCuHCF), K2Ni[Fe(CN)6]·3H2O (KNiHCF), and K2Co[Fe(CN)6] (KCoHCF) have been synthesized using plant based biosurfactant Aegle marmelos (Bael) and water as a green solvent. It must be emphasized here that no harmful reagent or solvent was used throughout the study. Plant extracts are easily biodegradable and therefore do not cause any harm to the environment. Hence, the proposed method of synthesis of various KMHCF nanoparticles followed a green path. The synthesized nanoparticles were characterized by powder X-ray diffraction (PXRD), Field-Emission Scanning Electron Microscopy (FE-SEM), Transmission Electron Microscopy (TEM), and Fourier Transform Infrared Spectroscopy (FT-IR). MHCF nanoparticles were used for the photocatalytic degradation of toxic dyes like Malachite Green (MG), Eriochrome Black T (EBT), Methyl Orange (MO), and Methylene Blue (MB). Under optimized reaction conditions, maximum photocatalytic degradation was achieved in case of KCuHCF nanoparticles mediated degradation process (MG: 96.06%, EBT: 83.03%, MB: 94.72%, and MO: 63.71%) followed by KNiHCF (MG: 95%, EBT: 80.32%, MB: 91.35%, and MO: 59.42%), KCoHCF (MG: 91.45%, EBT: 78.84%, MB: 89.28%, and MO: 58.20%).

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Gd–Si oxide mesoporous nanoparticles with pre-formed morphology prepared from a Prussian blue analogue template

Cited by 11 publications

References 42 publications

Gd-Si Oxide Nanoparticles as Contrast Agents in Magnetic Resonance Imaging

Gd-Si Oxide Nanoparticles as Contrast Agents in Magnetic Resonance Imaging

Synthesis of nanomaterials with desirable morphologies from metal–organic frameworks for various applications

Aegle marmelosMediated Green Synthesis of Different Nanostructured Metal Hexacyanoferrates: Activity against Photodegradation of Harmful Organic Dyes

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