scholarly journals Fluoride Ion Probe Based on 2-Thiohydantoin

2014 ◽  
Vol 34 (3) ◽  
pp. 561
Author(s):  
Ruiyuan Liu ◽  
Xue Yong ◽  
Xiaodong Yang ◽  
Yichen Yan ◽  
Xinwei Lu ◽  
...  
Keyword(s):  
Fluoride Ion ◽  
Ion Probe

Highly Selective Colorimetric/Fluorometric Dual-Channel Fluoride Ion Probe, and Its Capability of Differentiating Cancer Cells

2014 ◽  
Vol 6 (11) ◽  
pp. 7996-8000 ◽  
Author(s):  
Xujun Zheng ◽  
Wencheng Zhu ◽  
Dong Liu ◽  
Hua Ai ◽  
Yan Huang ◽  
...  
Keyword(s):  
Cancer Cells ◽  
Fluoride Ion ◽  
Dual Channel ◽  
Ion Probe

scholarly journals A simple colorimetric and ratiometric fluoride ion probe with large color change

RSC Advances ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 1-6
Author(s):  
Heng Shi ◽  
Hongjin Chen ◽  
Xiangguo Li ◽  
Jieni Xing ◽  
Gang Zhang ◽  
...  
Keyword(s):  
Color Change ◽  
Fluoride Ion ◽  
Ion Probe

Two colorimetric and ratiometric fluoride ion probes SHJ-1 and SHJ-2 based on the acylhydrazone skeleton have been developed.

A fluorescent fluoride ion probe based on a self-organized ensemble of 5-hydroxyflavone–Al(III) complex

2008 ◽  
Vol 69 (1) ◽  
pp. 282-285 ◽  
Author(s):  
R. Sai Sathish ◽  
A. Goutam Raju ◽  
G. Nageswara Rao ◽  
C. Janardhana
Keyword(s):  
Fluoride Ion ◽  
Self Organized ◽  
Ion Probe

A novel colorimetric and fluorometric fluoride ion probe based on photoinduced electron transfer signaling mechanism

2017 ◽  
Vol 253 ◽  
pp. 1096-1105 ◽  
Author(s):  
Xiao Yuan ◽  
Xiaojia Xu ◽  
Chengxi Zhao ◽  
Fei Zhang ◽  
Yunxiang Lu ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Fluoride Ion ◽  
Signaling Mechanism ◽  
Ion Probe

A water-soluble fluorescent fluoride ion probe based on Alizarin Red S–Al(III) complex

2007 ◽  
Vol 66 (2) ◽  
pp. 457-461 ◽  
Author(s):  
R. Sai Sathish ◽  
M. Ravi Kumar ◽  
G. Nageswara Rao ◽  
K. Anil Kumar ◽  
C. Janardhana
Keyword(s):  
Water Soluble ◽  
Alizarin Red S ◽  
Fluoride Ion ◽  
Alizarin Red ◽  
Ion Probe

New Colorimetric and Fluorometric Fluoride Ion Probe Based on Anthra[1,9-cd]pyrazol-6(2H)-one

2017 ◽  
Vol 27 (6) ◽  
pp. 2287-2294 ◽  
Author(s):  
Yang Hu ◽  
Yan-Yan Liu ◽  
Qiao Li ◽  
Jing-Yu Sun ◽  
Sheng-Li Hu
Keyword(s):  
Fluoride Ion ◽  
Ion Probe

Fluidized Catalytic Cracking Catalyst Microstructure as Determined by A Scanning Ion Microprobe

1990 ◽  
Vol 48 (2) ◽  
pp. 302-303
Author(s):  
J.K. Lampert ◽  
G.S. Koermer ◽  
J.M. Macaoy ◽  
J.M. Chabala ◽  
R. Levi-Setti
Keyword(s):  
Catalytic Cracking ◽  
Secondary Ion Mass Spectrometry ◽  
Fuel Oil ◽  
Ion Microprobe ◽  
Fluidized Catalytic Cracking ◽  
Ion Probe ◽  
Silica Alumina ◽  
Resolution Imaging ◽  
The University ◽  
High Spatial Resolution Imaging

We have used high spatial resolution imaging secondary ion mass spectrometry (SIMS) to differentiate mineralogical phases and to investigate chemical segregations in fluidized catalytic cracking (FCC) catalyst particles. The oil industry relies on heterogeneous catalysis using these catalysts to convert heavy hydrocarbon fractions into high quality gasoline and fuel oil components. Catalyst performance is strongly influenced by catalyst microstructure and composition, with different chemical reactions occurring at specific types of sites within the particle. The zeolitic portions of the particle, where the majority of the oil conversion occurs, can be clearly distinguished from the surrounding silica-alumina matrix in analytical SIMS images.The University of Chicago scanning ion microprobe (SIM) employed in this study has been described previously. For these analyses, the instrument was operated with a 40 keV, 10 pA Ga+ primary ion probe focused to a 30 nm FWHM spot. Elemental SIMS maps were obtained from 10×10 μm2 areas in times not exceeding 524s.

Restriction of Access to Dark State: A New Mechanistic Model for Heteroatom-Containing AIE Systems

2019 ◽  
Author(s):  
Yujie Tu ◽  
Junkai Liu ◽  
Haoke Zhang ◽  
Qian Peng ◽  
Jacky W. Y. Lam ◽  
...  
Keyword(s):  
Excited States ◽  
Radiative Decay ◽  
Molecular Design ◽  
Mechanistic Model ◽  
Zinc Ion ◽  
Easy Access ◽  
Triplet States ◽  
Dark State ◽  
Ion Probe ◽  
Π State

Aggregation-induced emission (AIE) is an unusual photophysical phenomenon and provides an effective and advantageous strategy for the design of highly emissive materials in versatile applications such as sensing, imaging, and theragnosis. "Restriction of intramolecular motion" is the well-recognized working mechanism of AIE and have guided the molecular design of most AIE materials. However, it sometimes fails to be workable to some heteroatom-containing systems. Herein, in this work, we take more than one excited state into account and specify a mechanism –"restriction of access to dark state (RADS)" – to explain the AIE effect of heteroatom-containing molecules. An anthracene-based zinc ion probe named APA is chosen as the model compound, whose weak fluorescence in solution is ascribed to the easy access from the bright (π,π*) state to the closelying dark (n,π*) state caused by the strong vibronic coupling of the two excited states. By either metal complexation or aggregation, the dark state is less accessible due to the restriction of the molecular motion leading to the dark state and elevation of the dark state energy, thus the emission of the bright state is restored. RADS is found to be powerful in elucidating the photophysics of AIE materials with excited states which favor non-radiative decay, including overlap-forbidden states such as (n,π*) and CT states, spin-forbidden triplet states, which commonly exist in heteroatom-containing molecules.

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