Synthesis of Gd2O3:Eu nanoplatelets for MRI and fluorescence imaging

Maalej, Nabil; Qurashi, Ahsanulhaq; Assadi, Achraf Amir; Elleuch, Riadh; Shaikh, M. Nasiruzzaman; Ilyas, Mohammad; Gondal, M.A.

doi:10.1186/s11671-015-0905-4

Cited by 45 publications

(14 citation statements)

References 54 publications

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“…The crystal spacing of 0.305 nm belongs to the (222) planes of Gd 2 O 3 nanoparticles (Figure 1e,f). The observed result is in good agreement with the reported literature [33]. The presence of the connected nanocrystals has been attained due to the existence of a diverse range of forces (electrostatic, hydrogen bonding, and van der Waals forces) provided by the presence of external templates of EG coating over Gd 2 O 3 nanoparticles.…”

Section: Characterization and Properties Of Synthesized Gd 2 O 3 Nanosupporting

confidence: 91%

Ethylene Glycol Functionalized Gadolinium Oxide Nanoparticles as a Potential Electrochemical Sensing Platform for Hydrazine and p-Nitrophenol

Chaudhary

Kumar

et al. 2019

Coatings

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The current work reports the successful synthesis of ethylene glycol functionalized gadolinium oxide nanoparticles (Gd2O3 Nps) as a proficient electrocatalytic material for the detection of hydrazine and p-nitrophenol. A facile hydrothermal approach was used for the controlled growth of Gd2O3 Nps in the presence of ethylene glycol (EG) as a structure-controlling and hydrophilic coating source. The prepared material was characterized by several techniques in order to examine the structural, morphological, optical, photoluminescence, and sensing properties. The thermal stability, resistance toward corrosion, and decreased tendency toward photobleaching made Gd2O3 nanoparticles a good candidate for the electrochemical sensing of p-nitrophenol and hydrazine by using cyclic voltammetric (CV) and amperometric methods at a neutral pH range. The modified electrode possesses a linear range of 1 to 10 µM with a low detection limit of 1.527 and 0.704 µM for p-nitrophenol and hydrazine, respectively. The sensitivity, selectivity, repeatability, recyclability, linear range, detection limit, and applicability in real water samples made Gd2O3 Nps a favorable nanomaterial for the rapid and effectual scrutiny of harmful environmental pollutants.

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Section: Characterization and Properties Of Synthesized Gd 2 O 3 Nanosupporting

confidence: 91%

Ethylene Glycol Functionalized Gadolinium Oxide Nanoparticles as a Potential Electrochemical Sensing Platform for Hydrazine and p-Nitrophenol

Chaudhary

Kumar

et al. 2019

Coatings

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“…Moreover, these do not have a significant accumulation in the lungs or liver of Female Swiss nude mice. Maalej et al [107] developed Gd 2 O 3 doped by europium (Eu) (2% to 10%) nanoplatelets through the polyol chemical method. Microscopy assays revealed a crystalline cubic structure of the Gd 2 O 3 matrix.…”

Section: Gd2o3 Particlesmentioning

confidence: 99%

An Overview of Gadolinium-Based Oxide and Oxysulfide Particles: Synthesis, Properties, and Biomedical Applications

et al. 2021

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In the last decade, the publications presenting novel physical and chemical aspects of gadolinium-based oxide (Gd2O3) and oxysulfide (Gd2O2S) particles in the micro- or nano-scale have increased, mainly stimulated by the exciting applications of these materials in the biomedical field. Their optical properties, related to down and upconversion phenomena and the ability to functionalize their surface, make them attractive for developing new probes for selective targeting and emergent bioimaging techniques, either for biomolecule labeling or theranostics. Moreover, recent reports have shown interesting optical behavior of these systems influenced by the synthesis methods, dopant amount and type, particle shape and size, and surface functionality. Hence, this review presents a compilation of the latest works focused on evaluating the optical properties of Gd2O3 and Gd2O2S particles as a function of their physicochemical and morphological properties; and also on their novel applications as MRI contrast agents and drug delivery nanovehicles, discussed along with their administration routes, biodistribution, cytotoxicity, and clearance mechanisms. Perspectives for this field are also identified and discussed.

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“…The former configuration is much more appropriate for dual imaging since it allows direct contact between water molecules and paramagnetic cations as it limits light scattering with the silica matrix. Finally, the third sub-family includes two types: (i) doped single crystals like Er-Tr or Ho doped superparamagnetic iron oxide Fe 3 O 4 NPs [ 190 , 191 ], Eu doped paramagnetic gadolinium oxide Gd 2 O 3 NPs [ 192 , 193 ], or Gd co-doped UCNPs and (ii) crystalline hetero-nanostructures like Fe 3 O 4 @LaF 3 :Ce,Tb [ 194 , 195 ], NaYF 4 :Yb 3+ -Er 3+ @Fe 3 O 4 [ 196 ] or NaYF 4 :Yb 3+ -Er 3+ @NaGdF 4 [ 197 , 198 ] core–shell NPs. Even if both kinds of probes combine high sensitivity of time-resolved fluorescence and high spatial resolution of MRI, there are some reports pointing out the possibility of a host lattice induced optical quenching in the former [ 199 ], making the latter much more studied.…”

Section: Ln-based Nanoprobes For Dual Magnetic and Optical Imagingmentioning

confidence: 99%

Design and Synthesis of Luminescent Lanthanide-Based Bimodal Nanoprobes for Dual Magnetic Resonance (MR) and Optical Imaging

2021

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Current biomedical imaging techniques are crucial for the diagnosis of various diseases. Each imaging technique uses specific probes that, although each one has its own merits, do not encompass all the functionalities required for comprehensive imaging (sensitivity, non-invasiveness, etc.). Bimodal imaging methods are therefore rapidly becoming an important topic in advanced healthcare. This bimodality can be achieved by successive image acquisitions involving different and independent probes, one for each mode, with the risk of artifacts. It can be also achieved simultaneously by using a single probe combining a complete set of physical and chemical characteristics, in order to record complementary views of the same biological object at the same time. In this scenario, and focusing on bimodal magnetic resonance imaging (MRI) and optical imaging (OI), probes can be engineered by the attachment, more or less covalently, of a contrast agent (CA) to an organic or inorganic dye, or by designing single objects containing both the optical emitter and MRI-active dipole. If in the first type of system, there is frequent concern that at some point the dye may dissociate from the magnetic dipole, it may not in the second type. This review aims to present a summary of current activity relating to this kind of dual probes, with a special emphasis on lanthanide-based luminescent nano-objects.

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Synthesis of Gd2O3:Eu nanoplatelets for MRI and fluorescence imaging

Cited by 45 publications

References 54 publications

Ethylene Glycol Functionalized Gadolinium Oxide Nanoparticles as a Potential Electrochemical Sensing Platform for Hydrazine and p-Nitrophenol

Ethylene Glycol Functionalized Gadolinium Oxide Nanoparticles as a Potential Electrochemical Sensing Platform for Hydrazine and p-Nitrophenol

An Overview of Gadolinium-Based Oxide and Oxysulfide Particles: Synthesis, Properties, and Biomedical Applications

Design and Synthesis of Luminescent Lanthanide-Based Bimodal Nanoprobes for Dual Magnetic Resonance (MR) and Optical Imaging

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