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关键词:'325805'
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Liangliang Liang et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 22(31), 10801-10807 (2016-06-02)
A crystal design strategy is described that generates hexagonal-phased NaYF4 :Nd/Yb@NaYF4 :Yb/Tm luminescent nanocrystals with the ability to emit light at 803 nm when illuminated at 745 nm. This is accomplished by taking advantage of the large absorption cross-section of Nd(3+) between
Syue-Liang Lin et al.
Nanomaterials (Basel, Switzerland), 10(10) (2020-10-21)
Several robust titania (TiO2) coated core/multishell trivalent lanthanide (Ln) upconversion nanoparticles (UCNPs) hybrid architecture designs have been reported for use in photodynamic therapy (PDT) against cancer, utilizing the near-infrared (NIR) excited energy down-shifting and up-conversion chain of Nd3+ (λ793-808 nm)
Kyungseop Lim et al.
Pharmaceutics, 12(11) (2020-11-21)
Photodynamic therapy (PDT) combined with upconverting nanoparticles (UCNPs) are viewed together as an effective method of ablating tumors. After absorbing highly tissue-penetrating near-infrared (NIR) light, UCNPs emit a shorter wavelength light (~660 nm) suitable for PDT. In this study, we
Yan Zhang et al.
ACS nano, 11(3), 2846-2857 (2017-02-22)
Nd
Microstructural and optical properties of SiO2 glasses doped with ZnSe quantum dots and Nd3+ ions}
El Boukhari T, et al.
Physica B: Condensed Matter, 509, 41-45 (2017)
Xixi Wang et al.
Nanoscale, 12(36), 18807-18814 (2020-09-25)
Mechanistic studies on photon upconversion play a critical role in the fundamental research of the luminescence of rare earth ions as well as their emerging applications. Energy migration mediated upconversion (EMU) has recently shown to be an important model for
Daifeng Li et al.
Advanced science (Weinheim, Baden-Wurttemberg, Germany), 6(23), 1902042-1902042 (2019-12-14)
Recently, various second near-infrared window (NIR-II, 1000-1700 nm) fluorophores have been synthesized for in vivo imaging with nonradiation, high resolution, and low autofluorescence. However, most of the NIR-II fluorophores, especially inorganic nanoprobes, are mainly retained in the reticuloendothelial system (RES)
Xiao Wu et al.
ACS applied materials & interfaces, 11(1), 385-393 (2018-12-18)
The efficacy of dynamic therapy for solid tumors suffers daunting challenges induced by tumor hypoxia. Herein, we report a biocompatible nanosystem containing Fe(OH)3-modified upconversion nanoparticles (UCNPs) for promoting synergetic chemo- and photodynamic therapy with the modulation of tumor hypoxia. In
Yanxiao Ao et al.
ACS nano, 13(3), 3373-3386 (2019-01-27)
Near-infrared (NIR) light penetrates tissue deeply, but its application to motor behavior stimulation has been limited by the lack of known genetic NIR light-responsive sensors. We designed and synthesized a Yb3+/Er3+/Ca2+-based lanthanide-doped upconversion nanoparticle (UCNP) that effectively converts 808 nm
Rong Huang et al.
Nanoscale, 13(9), 4812-4820 (2021-02-27)
Photon upconversion is a fascinating phenomenon that can convert low-energy photons to high-energy photons efficiently. However, most previous relevant research has been focused on upconversion systems with a sufficiently low lanthanide emitter concentration, such as 2 mol% for Er3+ in
Bo Zhou et al.
Advanced science (Weinheim, Baden-Wurttemberg, Germany), 5(3), 1700667-1700667 (2018-03-30)
Upconverting materials have achieved great progress in recent years, however, it remains challenging for the mechanistic research on new upconversion strategy of lanthanides. Here, a novel and efficient strategy to realize photon upconversion from more lanthanides and fine control of
Jingwen Mo et al.
Nanomaterials (Basel, Switzerland), 9(12) (2019-12-05)
We describe here an Nd3+-sensitized upconversion fluorescent sensor for epirubicin (EPI) detection in aqueous solutions under 808 nm laser excitation. The upconversion fluorescence of nanoparticles is effectively quenched in the presence of EPI via a fluorescence resonance energy transfer mechanism.
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