Results 31 to 40 of about 3,807 (195)

Er:Y2O3 and Nd:Y2O3 Nanoparticles: Synthesis, Pegylation, Characterization and Study of Their Luminescence Properties

open access: yesChemosensors, 2022
Lanthanide-doped yttrium oxide nanoparticles can display selective upconversion properties, rendering them invaluable in the field of nanomedicine for both sensing and diagnostics.
Regina Maria Chiechio   +15 more
doaj   +1 more source

Upconversion nanoparticle as a theranostic agent for tumor imaging and therapy [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2016
Upconversion nanoparticles (UCNPs) as a promising material are widely studied due to their unique optical properties. The material can be excited by long wavelength light and emit visible wavelength light through multiphoton absorption.
Wenkai Fang, Yanchun Wei
doaj   +1 more source

Embedded Upconversion Nanoparticles in Magnetic Molecularly Imprinted Polymers for Photodynamic Therapy of Hepatocellular Carcinoma

open access: yesBiomedicines, 2021
In this work, high-temperature pyrolysis was used to prepare both the core and shell of lantha-nide-doped UCNPs with lithium yttrium tetrafluoride (LiYF4) to enhance the green luminescence.
Cheng-Chih Lin   +7 more
doaj   +1 more source

Polymer-coated hexagonal upconverting nanoparticles: chemical stability and cytotoxicity

open access: yesFrontiers in Chemistry, 2023
Large (120 nm) hexagonal NaYF4:Yb, Er nanoparticles (UCNPs) were synthesized by high-temperature coprecipitation method and coated with poly(ethylene glycol)-alendronate (PEG-Ale), poly (N,N-dimethylacrylamide-co-2-aminoethylacrylamide)-alendronate (PDMA-
Vitalii Patsula   +12 more
doaj   +1 more source

Stable Upconversion Nanohybrid Particles for Specific Prostate Cancer Cell Immunodetection

open access: yesScientific Reports, 2016
AbstractProstate cancer is one of the male killing diseases and early detection of prostate cancer is the key for better treatment and lower cost. However, the number of prostate cancer cells is low at the early stage, so it is very challenging to detect. In this study, we successfully designed and developed upconversion immune-nanohybrids (UINBs) with
Shi, Yu   +12 more
openaire   +3 more sources

Wavelength-Dependent Metal-Enhanced Fluorescence Biosensors via Resonance Energy Transfer Modulation

open access: yesBiosensors, 2023
Fluorescence can be enhanced or quenched depending on the distance between the surface of a metal nanoparticle and the fluorophore molecule. Fluorescence enhancement by nearby metal particles is called metal-enhanced fluorescence (MEF).
Seungah Lee, Seong Ho Kang
doaj   +1 more source

Synthesis, characterization, and incorporation of upconverting nanoparticles into a dental adhesive

open access: yesBrazilian Oral Research, 2021
: The purpose of this study was to describe the synthesis, characterization, and functionalization of b-NaYF4:30%Yb/0.5%Tm upconverting nanocrystals for use as nanofillers in a dental adhesive and microscopically evaluate the interface between the ...
Rafael Rocha Pacheco   +9 more
doaj   +1 more source

Metallic nanoparticles-decorated NdxY1-xAl3(BO3)4 sub-micrometric particles to enhance anti-Stokes excitation performance

open access: yesOptical Materials: X, 2023
In the anti-Stokes excitation of trivalent rare-earth ions (RE3+), the excitation photons energy is smaller than that of a given absorption transition, and the energy mismatch can be compensated by phonons annihilation from the host lattice.
Eloísa G. Hilário   +10 more
doaj   +1 more source

Compton upconversion of twisted photons: backscattering of particles with non-planar wave functions [PDF]

open access: yesThe European Physical Journal C, 2011
12 pages, LaTeX; some typographical errors ...
Jentschura, U. D., Serbo, V. G.
openaire   +2 more sources

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

open access: yesCrystals, 2021
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 ...
Benita Ortega-Berlanga   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy