Journal ArticleDOI
Lanthanide-doped upconversion nano-bioprobes: electronic structures, optical properties, and biodetection
TLDR
This review focuses on the most recent advances in the development of lanthanide-doped UCNPs as potential luminescent nano-bioprobes by means of the authors' customized lanthanides photophysics measurement platforms specially designed for upconversion luminescence.Abstract:
Lanthanide-doped upconversion nanoparticles (UCNPs) have attracted considerable interest due to their superior physicochemical features, such as large anti-Stokes shifts, low autofluorescence background, low toxicity and high penetration depth, which make them extremely suitable for use as alternatives to conventional downshifting luminescence bioprobes like organic dyes and quantum dots for various biological applications. A fundamental understanding of the photophysics of lanthanide-doped UCNPs is of vital importance for discovering novel optical properties and exploring their new applications. In this review, we focus on the most recent advances in the development of lanthanide-doped UCNPs as potential luminescent nano-bioprobes by means of our customized lanthanide photophysics measurement platforms specially designed for upconversion luminescence, which covers from their fundamental photophysics to bioapplications, including electronic structures (energy levels and local site symmetry of emitters), excited-state dynamics, optical property designing, and their promising applications for in vitro biodetection of tumor markers. Some future prospects and efforts towards this rapidly growing field are also envisioned.read more
Citations
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Recent Strategies to Develop Innovative Photosensitizers for Enhanced Photodynamic Therapy.
TL;DR: In this paper, a review aimed at reporting recent strategies to develop innovative organic photosensitizers for enhanced photodynamic therapy, with each example described in detail instead of providing only a general overview, to provide intuitive, vivid, and specific insights to the readers.
Journal ArticleDOI
Core–Shell Upconversion Nanoparticle@Metal–Organic Framework Nanoprobes for Luminescent/Magnetic Dual-Mode Targeted Imaging
TL;DR: These nanostructures combine the near-infrared optical property of the UCNP cores and the T2 -magnetic response (MR) imagingproperty of the MOF shells to demonstrate as high-resolution nanoprobes for targeted luminescence/MR imaging both in vitro and in vivo.
Journal ArticleDOI
Binary temporal upconversion codes of Mn 2+ -activated nanoparticles for multilevel anti-counterfeiting
Xiaowang Liu,Yu Wang,Xiyan Li,Zhigao Yi,Renren Deng,Liangliang Liang,Xiaoji Xie,Daniel Teh Boon Loong,Shuyan Song,Dianyuan Fan,Angelo H. All,Angelo H. All,Hongjie Zhang,Ling Huang,Xiaogang Liu,Xiaogang Liu,Xiaogang Liu +16 more
TL;DR: The authors engineer nanoparticles that produce binary color codes on different timescales by combining the long-lived luminescence of Mn2+ with the relatively short-lived emission of lanthanides.
Journal ArticleDOI
Three-dimensional controlled growth of monodisperse sub-50 nm heterogeneous nanocrystals.
Deming Liu,Xiaoxue Xu,Xiaoxue Xu,Yi Du,Xian Qin,Yuhai Zhang,Chenshuo Ma,Shihui Wen,Shihui Wen,Wei Ren,Wei Ren,Ewa M. Goldys,James A. Piper,Shi Xue Dou,Xiaogang Liu,Dayong Jin,Dayong Jin +16 more
TL;DR: It is identified that the control over the ratio of OA− to OAH can be used to directionally inhibit, promote or etch the crystallographic facets of the nanoparticles, thus allowing the fabrication of a diverse library of monodisperse sub-50 nm nanoparticles.
Journal ArticleDOI
A Near-Infrared Triggered Nanophotosensitizer Inducing Domino Effect on Mitochondrial Reactive Oxygen Species Burst for Cancer Therapy
TL;DR: A near-infrared (NIR) triggered nanophotosensitizer based on mitochondria targeted titanium dioxide-coated upconversion nanoparticles for PDT against cancer and the complete removal of tumor in vivo confirmed the excellent therapeutic effect of the nanophile.
References
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Intensities of Crystal Spectra of Rare‐Earth Ions
TL;DR: In this article, the transition probability of pure-electronic electric dipole transitions between levels of the 4-fluorescence configuration perturbed by a static crystalline field is treated.
Journal ArticleDOI
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TL;DR: Before the 1960s, all anti-Stokes emissions, which were known to exist, involved emission energies in excess of excitation energies by only a few kT and were linked to thermal population of energy states above excitation states by such an energy amount.
Journal ArticleDOI
Noble Metals on the Nanoscale: Optical and Photothermal Properties and Some Applications in Imaging, Sensing, Biology, and Medicine
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