ArticleChemistry of materials : a publication of the American Chemical Society2011
Plasmonic enhanced emissions from cubic NaYF(4):Yb: Er/Tm nanophosphors.
Article in Chemistry of materials : a publication of the American Chemical Society, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 127 citations in OpenAlex.
- Rare earth nanoparticles for sprayed and intravenous NIR II imaging and photodynamic therapy of tongue cancer.Nanoscale advances · 2022Article
- Design and Synthesis of Luminescent Lanthanide-Based Bimodal Nanoprobes for Dual Magnetic Resonance (MR) and Optical Imaging.Nanomaterials (Basel, Switzerland) · 2021Review
- Polyol-Made Luminescent and Superparamagnetic β-NaYNanomaterials (Basel, Switzerland) · 2020Article
- Up-Conversion Luminescence Properties of Lanthanide-Gold Hybrid Nanoparticles as Analyzed with Discrete Dipole Approximation.Nanomaterials (Basel, Switzerland) · 2018Article
- Molecular design of upconversion nanoparticles for gene delivery.Chemical science · 2017Review
- Fabrication of Au-Ag nanocage@NaYFScientific reports · 2017Article
- Current Advances in Lanthanide-Doped Upconversion Nanostructures for Detection and Bioapplication.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2016Article
- Plasmon-Mediated Solar Energy Conversion via Photocatalysis in Noble Metal/Semiconductor Composites.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2016Article
- Review
- Controlling upconversion nanocrystals for emerging applications.Nature nanotechnology · 2015Review
- Upconversion nanoparticles: design, nanochemistry, and applications in theranostics.Chemical reviews · 2014Review
- NaGdFChemistry of materials : a publication of the American Chemical Society · 2014Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
A metal shell was used in this study to provide significant enhancement of the up-converted emission from cubic NaYF(4) nanoparticles, creating a valuable composite material for labeling in biology and other applications - use of the cubic form of the material obviates the need to undertake a high temperature transformation to the naturally more efficient hexagonal phase. The NaYF(4) matrix contained ytterbium sensitizer and an Erbium (Er) or Thulium (Tm) activator. The particle sizes of the as-synthesized nanoparticles were in the range of 20-40 nm with a gold shell thickness of 4-8 nm. The gold shell was macroscopically amorphous. The synthesis method was based on a citrate chelation. In this approach, we exploited the ability of the citrate ion to act as a reductant and stabilizer. Confining the citrate ion reductant on the nanophosphor surface rather than in the solution was critical to the gold shell formation. The plasmonic shell enhanced the up-conversion emission of Tm from visible and near-infrared regions by up to a factor of 8, in addition to imparting a visible color arising from the plasmon absorption of the gold shell. The up-conversion enhancement observed with Tm and Er were different for similar gold coverages, with local crystal field changes as a possible route to enhance up-conversion emission from high symmetry structural hosts. These novel up-converting nanophosphor particles combine the phosphor and features of a gold shell, providing a unique platform for many biological imaging and labeling applications.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.