Results 101 to 110 of about 36,694 (225)

Photoluminescence Turn‐On Method to Determine the Kinetics of Thermally Activated Delayed Fluorescence Materials

open access: yesAdvanced Physics Research, EarlyView.
Thermally Activated Delayed Fluorescence (TADF) is widely exploited to achieve high‐efficiency OLEDs. TADF Emitters are normally investigated with transient photoluminescence (PL), which requires the PL to be detected over multiple orders of magnitude in time and intensity.
Stefan Diesing   +3 more
wiley   +1 more source

Extended Near-Infrared Photoactivity of Bi6Fe1.9Co0.1Ti3O18 by Upconversion Nanoparticles

open access: yesNanomaterials, 2018
Bi6Fe1.9Co0.1Ti3O18 (BFCTO)/NaGdF4:Yb3+, Er3+ (NGF) nanohybrids were successively synthesized by the hydrothermal process followed by anassembly method, and BFCTO-1.0/NGF nanosheets, BFCTO-1.5/NGF nanoplates and BFCTO-2.0/NGF truncated tetragonal ...
Wen Ge   +4 more
doaj   +1 more source

Advancing design strategies in smart stimulus‐responsive liposomes for drug release and nanomedicine

open access: yesBMEMat, EarlyView.
Schematic illustration of stimulus‐responsive liposomes designed for controlled drug release and nanomedicine. The innermost circle represents different liposomal structures, including unilamellar, multilamellar, and multivesicular liposomes. The middle layer illustrates the responsive phospholipid components.
Yuchen Guo   +9 more
wiley   +1 more source

Real‐time biosensing of Parkinson's disease biomarkers via NIR‐activated upconversion nanoparticles

open access: yesBMEMat, 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

Upconversion-Powered Photoelectrochemical Bioanalysis for DNA Sensing

open access: yesSensors
In 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

Mimic, target, and adapt: Cell membrane‐coated nanoplatforms for precision and immune‐guided cancer treatment

open access: yesBMEMat, 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

Remote polarization entanglement generation by local dephasing and frequency upconversion

open access: yes, 2017
We introduce a scheme for remote entanglement generation for the photon polarization. The technique is based on transferring the initial frequency correlations to specific polarization-frequency correlations by local dephasing and their subsequent ...
Guo, G. -C.   +6 more
core   +1 more source

Advanced nanotherapeutics for combating ocular infections: Rational design, antimicrobial mechanisms, and therapeutic breakthroughs

open access: yesBMEMat, 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

Photophysics of Upconversion: Towards Application in Upconversion Displays

open access: yes, 2020
Der Regenbogen besteht aus sieben Farben. Von Violett nach Rot, nimmt die Photonenenergie des Lichts ab. Durch die Kombination der Energien von zwei roten Photonen kann ein blaues Photon erzeugt werden. Ein solcher Prozess wird als Upconversion (UC) bezeichnet. UC kann in organischen und anorganischen Systemen beobachtet werden.
openaire   +2 more sources

Insights Into Symmetry and Substitution Patterns Governing Singlet–Triplet Energy Gap in the Chemical Space of Azaphenalenes

open access: yesChemistry – A European Journal, EarlyView.
ABSTRACT Molecules that violate Hund's rule by exhibiting an inverted singlet–triplet gap (STG), where the first excited singlet (S1${\rm S}_1$) lies below the triplet (T1${\rm T}_1$), are rare but hold great promise as efficient fifth‐generation light emitters.
Atreyee Majumdar   +1 more
wiley   +1 more source

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