Results 81 to 90 of about 668,221 (156)

A temperature self-monitoring NaYF4:Dy3+/Yb3+@NaYF4:Er3+/Yb3+ core-shell photothermal converter for photothermal therapy application

Results in Physics, 2019
For developing novel photothermal converting agent with temperature self-reading-out function in photothermal therapy, NaYF4:Dy3+/Yb3+@NaYF4:Er3+/Yb3+ core-shell nanostructure was designed and prepared via a thermal decomposition technique.
Yunci Li, Baojiu Chen, Lili Tong, Xizhen Zhang, Sai Xu, Xiangping Li, Jinsu Zhang, Jiashi Sun, Xin Wang, Yanqiu Zhang, Guozhu Sui, Yuhang Zhang, Xiangqing Zhang, Haiping Xia   +13 more
doaj   +1 more source

Boron and nitrogen co-doped carbon dots as the dual functional fluorescent probe for Fe3+ and pH detection

Journal of Saudi Chemical Society
Carbon dots doped with boron and nitrogen atoms (B, N-CDs) were designed and prepared by hydrothermal strategy using citric acid, urea and borax as raw materials.
Shenna Chen, Yunping Hao, Sha Liu, Yanxu Liu, Ziyan Zhang, Mei Fang, Lina Geng   +6 more
doaj   +1 more source

PAIR DRIVEN IR FLUORESCENCE QUENCHING OF Yb3+ IN ZrO2: Yb3+ [PDF]

, 2006
"In the chapter 1 we will discuss the concentration quenching of luminescence in general. Also we review the basic ytterbium spectroscopy, as well as cooperative Yb emission. Our experimental observations on the quenching of the IR emission of Yb as well
LUIS OCTAVIO MEZA ESPINOSA
core  

Comparison of the Performance of Fluorescent, Phosphorescent, and TADF Luminophores for Explosives Sensing

Advanced Sensor Research
This study investigates how the emission mechanism (fluorescence, phosphorescence, or thermally activated delayed fluorescence, TADF) of a luminescence‐quenching chemical sensor influences the sensitivity of explosives detection.
Michele Duarte Tonet, Graham A. Turnbull, Eli Zysman‐Colman   +2 more
doaj   +1 more source

Binding of dicamba to soluble and bound extracellular polymeric substances (EPS) from aerobic activated sludge: A fluorescence quenching study [PDF]

, 2010
Binding of dicamba to soluble EPS (SEPS) and bound EPS (BEPS) from aerobic activated sludge was investigated using fluorescence spectroscopy. Two protein-like fluorescence peaks (peak A with Ex/Em = 225 nm/342-344 nm and peak B with Ex/Em = 275/340-344 ...
Xiangliang, Daoyong, Zhang, DY, Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Guizhou, Peoples R China, Zhang, Chen, Wenjuan, Xi, Song, Liu, Jing, Pan, Fengchang, Wu   +12 more
core  

Fluorescence quenching.

, 2017
Quenching by acrylamide of the intrinsic fluorescence intensity of IFABP (■, □), Δ98Δ (●,○) and Δ78Δ (▲,△). Experiments were carried out in the absence (closed symbols) or in the presence of 10% v/v TFE (open symbols) in buffer PN8 (see Materials and ...
José M. Delfino (736126), Julio J. Caramelo (240452), Carla R. Angelani (3740188), Lucrecia M. Curto (736125)   +3 more
core   +1 more source

Fluorescence Quenching of Phycoerythrin by Anthraquinone Dyes

, 2010
Fluorescence quenching of phycoerythrin (PE) by a series of anthraquinone dyes has been investigated using steady state fluorescence technique in water medium. The dyes used were Uniblue, Acid blue 129, Alizarin and Alizarin red S.
R. Renganathan, A. Kathiravan
core   +1 more source

Simple Molecule Mercury Sensor

, 2008
Several molecules previously produced from a nitrile-based cascade cyclization were examined as potential mercury sensors. Various analytical parameters, including fluorescence quantum yield, UV shift, fluorescence quenching, binding constant, binding ...
Wan, Yanjun
core  

Chlorophyll fluorescence quenching by oxygen in plants

, 1981
Three distinct phases of chlorophyll a fluorescence quenching were observed in green plants by applying O2 pressures of up to 400 atm. These phases are interpreted as indications of three different mechanisms of O2 quenching. The most sensitive phase is
Gordon Hall, William Vidaver, Konrad Colbow, Silvia Wessel   +3 more
core   +1 more source

Alleviating NIR-II emission quenching in ring-fused fluorophore via manipulating dimer populations for superior fluorescence imaging

Light: Science & Applications
Emission quenching resulting from fluorophore aggregation has long been a significant challenge in optimizing emission-based technologies, such as fluorescence imaging and optoelectronic devices.
Xiaofei Miao, Mingxuan Jia, Xianwei Weng, Jie Zhang, Yonghui Pan, Hui Zhao, Zhongzheng Yu, Quli Fan, Wenbo Hu   +8 more
doaj   +1 more source