Facile and rapid synthesis of highly luminescent nanoparticles via pulsed laser ablation in liquid

Ledoux, Gilles; Amans, David; Dujardin, Christophe; Masenelli‐Varlot, Karine

doi:10.1088/0957-4484/20/44/445605

Cited by 73 publications

(48 citation statements)

References 39 publications

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“…Gadolinium oxide and RE gadolinium oxide have been synthesized by many groups using different techniques such as sol-gel [22], polyol [23], flame-spray pyrolysis [24,25], laser ablation [26], hydrothermal [17,27,28], and direct precipitation [29]. …”

Section: Introductionmentioning

confidence: 99%

Synthesis of Gd2O3:Eu nanoplatelets for MRI and fluorescence imaging

et al. 2015

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We synthesized Gd2O3 and Gd2O3 doped by europium (Eu) (2% to 10%) nanoplatelets using the polyol chemical method. The synthesized nanoplatelets were characterized by X-ray diffraction (XRD), FESEM, TEM, and EDX techniques. The optical properties of the synthesized nanoplatelets were investigated by photoluminescence spectroscopy. We also studied the magnetic resonance imaging (MRI) contrast enhancement of T1 relaxivity using 3 T MRI. The XRD for Gd2O3 revealed a cubic crystalline structure. The XRD of Gd2O3:Eu3+ nanoplatelets were highly consistent with Gd2O3 indicating the total incorporation of the Eu3+ ions in the Gd2O3 matrix. The Eu doping of Gd2O3 produced red luminescence around 612 nm corresponding to the radiative transitions from the Eu-excited state 5D0 to the 7F2. The photoluminescence was maximal at 5% Eu doping concentration. The stimulated CIE chromaticity coordinates were also calculated. Judd-Ofelt analysis was used to obtain the radiative properties of the sample from the emission spectra. The MRI contrast enhancement due to Gd2O3 was compared to DOTAREM commercial contrast agent at similar concentration of gadolinium oxide and provided similar contrast enhancement. The incorporation of Eu, however, decreased the MRI contrast due to replacement of gadolinium by Eu.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Gd2O3:Eu nanoplatelets for MRI and fluorescence imaging

et al. 2015

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“…In order to obtain nanoparticles, two ways have been envisioned by the authors: first, a laser ablation treatment of bulk powder in solution, and a wet grinding of the same powder followed by selective sedimentation in alkaline solution, as reported before 8. Laser ablation combines many advantages compared to other extraction techniques, notably regarding size distributions of the resulting NPs 48,49. Besides, various materials have already been obtained with this method such as metal NPs 50, semiconductors 51, dielectric compounds 52, but also nitride-based compounds such as C 3 N 4 53.…”

Section: The First Generation Of Plnps For Bioimaging: Matrix Silicatementioning

confidence: 99%

Chemically engineered persistent luminescence nanoprobes for bioimaging

L’Ecuyer¹,

Teston²,

et al. 2016

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Imaging nanoprobes are a group of nanosized agents developed for providing improved contrast for bioimaging. Among various imaging probes, optical sensors capable of following biological events or progresses at the cellular and molecular levels are actually actively developed for early detection, accurate diagnosis, and monitoring of the treatment of diseases. The optical activities of nanoprobes can be tuned on demand by chemists by engineering their composition, size and surface nature. This review will focus on researches devoted to the conception of nanoprobes with particular optical properties, called persistent luminescence, and their use as new powerful bioimaging agents in preclinical assays.

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“…Laser ablation seems to combine many advantages compared to other extraction techniques, notably regarding size distributions of the resulting NPs [16,17]. Besides, various materials have already been obtained with this method such as metal NPs [18], semiconductors [19], dielectric compounds [20], but also nitride-based compounds such as C 3 N 4 [21].…”

Section: Extraction Of Csn Nanoparticles By Pulsed Laser Ablation In mentioning

confidence: 99%