Results 101 to 110 of about 113,431 (288)

Tailoring the Properties of Functional Materials With N‐Oxides

open access: yesAdvanced Functional Materials, EarlyView.
The properties of materials bearing N‐oxide groups are often dominated by the polar N+─O− bond. It provides hydrophilicity, selective ion‐binding, electric conductivity, or antifouling properties. Many of the underlying mechanisms have only recently been discovered, and the interest in N‐oxide materials is rapidly growing.
Timo Friedrich   +5 more
wiley   +1 more source

Biopolymer‐Templated Hierarchical 3D‐Structured Gold Nanoparticle/Graphene Oxide Hybrid Materials for Ultrasensitive Surface‐Enhanced Raman Scattering

open access: yesAdvanced Functional Materials, EarlyView.
A scalable bio‐templated approach using spray‐coating and thermal annealing fabricates cellulose nanofibril (CNF) films loaded with gold nanoparticles (Au NPs) and graphene oxide (GO) hybrids as Surface‐enhanced Raman scattering (SERS) substrates. The 3D CNF network ensures uniform Au NPs distribution, while annealing induces more hotspots, confirmed ...
Yingjian Guo   +14 more
wiley   +1 more source

A single‐molecule platform for photo‐triggered peroxynitrite release with built‐in fluorescence calibration

open access: yesSmart Molecules
Peroxynitrite (ONOO−) is central to both physiological signaling and diverse pathological processes. Its dual nature underscores the need for precise tools to investigate its spatiotemporal dynamics and biological functions.
Mengqi Liu   +8 more
doaj   +1 more source

Hydrophobic analogues of rhodamine B and rhodamine 101: potent fluorescent probes of mitochondria in living C. elegans

open access: yesBeilstein Journal of Organic Chemistry, 2012
Mitochondria undergo dynamic fusion and fission events that affect the structure and function of these critical energy-producing cellular organelles.
Laurie F. Mottram   +3 more
doaj   +1 more source

Widefield multifrequency fluorescence lifetime imaging using a two-tap complementary metal-oxide semiconductor camera with lateral electric field charge modulators. [PDF]

open access: yes, 2019
Widefield frequency-domain fluorescence lifetime imaging microscopy (FD-FLIM) measures the fluorescence lifetime of entire images in a fast and efficient manner.
Chen, Hongtao   +5 more
core  

Coupled Ferroelectric–Photoelectrochemical in Water Reduction Over BiFeO3 Thin Film Heterostructure Modulated by Rare‐Earth Doping

open access: yesAdvanced Functional Materials, EarlyView.
Gd‐doped BFO (BGFO) exhibits a ∼2‐order reduction in leakage current owing to its lowest content of oxygen vacancies. This leads to a ∼2.5‐fold increase in remnant polarization. These improvements in BGFO effectively boost charge separation and transportation, resulting in the greatest incident photon‐to‐current efficiency of 12.9 ± 0.73% and a ∼1.5 ...
Ming‐Wei Chu   +7 more
wiley   +1 more source

Dual-Responsive Hydrogels for Mercury Ion Detection and Removal from Wastewater

open access: yesGels
This study describes the development of a fast and cost-effective method for the detection and removal of Hg2+ ions from aqueous media, consisting of hydrogels incorporating chelating agents and a rhodamine derivative (to afford a qualitative evaluation ...
Aurel Diacon   +8 more
doaj   +1 more source

Strain‐Activated Photo‐Dehalogenation Unlocks Low‐Energy One and Two‐Photon 3D Microfabrication

open access: yesAdvanced Functional Materials, EarlyView.
5,14‐NMI‐Cz acts, conversely to its 7,10‐NMI‐Cz(7,10‐'dibromo‐2‐(2,6‐diisopropylphenyl)‐1H‐benzo[lmn]carbazolo[9,1‐bc][2,8]phenanthroline‐1,3(2H)‐dione) counterpart, as modular photoinitiator with panchromatic photoactivity, featuring a weak C–Br bond from geometric strain for efficient Type I & II initiation. These studies demonstrate applicability of
Kacper Piskorz   +10 more
wiley   +1 more source

Chemigenetic Encoding of Fluorescent Dyes Enables High‐Fidelity and Wash‐Free Imaging of Proteins in Live Cells

open access: yesAdvanced Science
Fluorescent dyes are indispensable chemical tools for protein labeling, yet their utility in live‐cell imaging remains constrained by background fluorescence from off‐target interactions. A chemigenetic strategy is presented that integrates synthetic dye
Xuelian Zhou   +8 more
doaj   +1 more source

Unveiling Aggregation‐Induced Singlet Fission in Push–Pull Diketopyrrolopyrrole Water Dispersed Nanoaggregates and Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Aggregates of diketopyrrolopyrrole dipolar and quadrupolar systems exhibit panchromatic absorption spectra extending in the entire visible range. Upon aggregation in water and in the solid state, their fluorescence is almost completely quenched and their singlet excited state lifetime is significantly shortened.
Roberto Cantoni   +10 more
wiley   +1 more source

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