Results 111 to 120 of about 19,577 (268)
On the decay time of upconversion luminescence
Nanoscale, 2019 Numerical simulations based on rate-equation models were performed to investigate how the upconversion luminescence decay is affected by the lifetimes of intermediate states, energy transfer, and cross-relaxation processes.
Jan Bergstrand +9 more
openaire +4 more sources
Real‐time biosensing of Parkinson's disease biomarkers via NIR‐activated upconversion nanoparticles
BMEMat, EarlyView.Schematic illustration of the luminescence resonance energy transfer‐driven core‐shell‐shell UCNPs (cssUCNPs@Fluo4) nanoprobe for simultaneous monitoring of Ca²⁺‐temperature dynamics in Parkinson's disease models. Abstract Parkinson's disease (PD) is a progressive neurodegenerative disorder with incompletely understood pathophysiology, necessitating ...
Jialin Liu +9 more
wiley +1 more source
BMEMat, EarlyView.This Perspective explores the emerging landscape of cell membrane‐coated nanoparticles (CM‐NPs) as intelligent, immune‐compatible platforms for cancer therapy. Highlighting design strategies, translational challenges, and competitive positioning, it outlines how integrating biomimetic targeting with advanced analytical and manufacturing tools could ...
A. K. M. M. Alam +4 more
wiley +1 more source
Theory for upconversion of incoherent images [PDF]
, 2012 Upconversion of images is a generic method for shifting the spectral content of entire images. A comprehensive theory for upconversion of incoherent light images is presented and compared against experiments.
Tidemand-Lichtenberg, Peter +2 more
core +1 more source
BMEMat, EarlyView.Nanomaterials revolutionize ocular infection treatment by enabling targeted drug delivery and enhanced antimicrobial efficacy against resistant pathogens. This review systematically explores their rational design, multimodal mechanisms, and translational potential for next‐generation anti‐infective therapies.
Yujia Liu +7 more
wiley +1 more source
Ultraviolet upconversion in Pr
, 2006 Ultraviolet upconversion fluorescence band (260–350 nm) has been observed from Pr3+:Y2SiO5 pumped by Ar+ ion laser (488 nm). Power dependence of the fluorescence emitted from 4f5d, 3P0 and 1D2 were measured.
C. H. Hu +4 more
core +1 more source
Carbon Quantum Dots Meet Perovskite Solar Cells: A Review of Multifunctional Synergies
Carbon Energy, EarlyView.This review highlights the multifunctional role of carbon dots in perovskite solar cells. Their applications as additives and interfacial modifiers are discussed in terms of crystallization control, defect passivation, energy‐level alignment, and environmental stability.
Yagmur Su Sayin +3 more
wiley +1 more source
, 2016 Yadong Xing, Luoyuan Li, Xicheng Ai, Limin Fu Department of Chemistry, Renmin University of China, Beijing, People’s Republic of China Abstract: In this study, we developed a nanosystem based on upconversion nanoparticles (UCNPs) coated with a ...
Fu LM, Ai XC, Xing YD, Li LY
core
Biophotonics characterization of upconversion nanoparticles [PDF]
, 2022 University of Technology Sydney. Faculty of Science.Upconversion materials have attracted enormous attention for a broad range of applications in biological imaging, energy-related light harvesting, and sensing, due to their unique physicochemical ...
Ding, Lei
core
Upconversion-Powered Photoelectrochemical Bioanalysis for DNA Sensing
SensorsIn this work, we report a new concept of upconversion-powered photoelectrochemical (PEC) bioanalysis. The proof-of-concept involves a PEC bionanosystem comprising a NaYF4:Yb,Tm@NaYF4 upconversion nanoparticles (UCNPs) reporter, which is confined by DNA ...
Hong Liu +5 more
doaj +1 more source