2018年6月20日 · Lanthanide-doped upconversion nanoparticles (UCNPs) are capable of converting near-infra-red excitation into visible and ultraviolet emission. Their unique...

2022年7月13日 · This review presents a summary of diverse designs and synthesis strategies of UCNPs-based nanocomposites, including self-assembly, in-situ growth and epitaxial growth, …

2023年2月1日 · Upconversion nanoparticles (UCNPs) designed for cancer therapy usually have implemented photoinitiators and dyes to increase reactive oxygen species (ROS) by producing …

2022年6月7日 · In this study, we report a facile strategy to programmably switch the 800 nm NIR emission in Yb/Tm/Er codoped UCNPs by precisely tuning the pulse width of 980 nm …

2024年11月12日 · In this study, we demonstrate the core–shell UCNPs modified with cationic biopolymer, i.e., N, N-trimethyl chitosan (TMC), can overcome endothelial barriers. The …

2022年3月1日 · UC white light emission is achieved from UCNPs-sensitized PeNCs under 940 nm light-emitting diode. Under ultraviolet (UV) and near-infrared (NIR) illuminations, dual …

4 天之前 · The UCNPs utilized in this study are co-doped with Tm 3+ and Yb 3+, exhibiting the remarkable property of emitting dual emissions at both 455 and 800 nm when excited by a 975 …

2014年3月10日 · In one pioneering work, Zhang and co-workers synthesized highly uniform hexagonal phase NaYF 4:Yb 3+ /Er 3+ (or Tm 3+) UCNPs with controllable shapes and sizes …

New generation fluorophores, also termed upconversion nanoparticles (UCNPs), have the ability to convert near infrared radiations with lower energy into visible radiations with higher energy …

2024年8月21日 · Photon-upconversion nanoparticles (UCNP) are nanocrystals emitting shorter wavelength light under near-infrared excitation (anti-Stokes emission). This unique property …