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 naked-eye, selective and sensitive chemosensor for fluoride ion

2010 ◽  
Vol 64 (6) ◽  
Author(s):  
Puhui Xie ◽  
Fengqi Guo ◽  
Weifeng Wang ◽  
Xiyang Liu
Keyword(s):  
Charge Transfer ◽  
Fluorescence Quenching ◽  
Fluorescence Spectra ◽  
Color Change ◽  
Fluoride Ion ◽  
Absorption And Fluorescence Spectra ◽  
Strong Fluorescence ◽  
Naked Eye ◽  
Acridine Yellow ◽  
Intermolecular Charge Transfer

AbstractEffect of the addition of six different anions on the absorption and fluorescence spectra of acridine yellow G (AYG) was examined. Only the F− anion could induce a visible color change observable with naked eye and a strong fluorescence quenching with K SV of 8.3 × 104 mol−1 L in CH3CN solutions. Calculated results of the interaction between the F− anion and acridine yellow G using the B3LYP/6-31G(d) program showed that the intermolecular charge transfer through the formation of an H-bond between AYG and F− is an essential sensor mechanism.

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 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

scholarly journals Tetraphenylethylene-Substituted Bis(thienyl)imidazole (DTITPE), An Efficient Molecular Sensor for the Detection and Quantification of Fluoride Ions

Chemosensors ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 285
Author(s):  
Ranjith Kumar Jakku ◽  
Nedaossadat Mirzadeh ◽  
Steven H. Privér ◽  
Govind Reddy ◽  
Anil Kumar Vardhaman ◽  
...  
Keyword(s):  
Density Functional ◽  
Color Change ◽  
Spectroscopic Studies ◽  
Fluoride Ion ◽  
Fluoride Ions ◽  
Functional Theory ◽  
Naked Eye ◽  
Real World Application ◽  
Molecular Sensor ◽  
Detection And Quantification

Fluoride ion plays a pivotal role in a range of biological and chemical applications however excessive exposure can cause severe kidney and gastric problems. A simple and selective molecular sensor, 4,5-di(thien-2-yl)-2-(4-(1,2,2-triphenylvinyl)-phenyl)-1H-imidazole, DTITPE, has been synthesized for the detection of fluoride ions, with detection limits of 1.37 × 10−7 M and 2.67 × 10−13 M, determined by UV-vis. and fluorescence spectroscopy, respectively. The variation in the optical properties of the molecular sensor in the presence of fluoride ions was explained by an intermolecular charge transfer (ICT) process between the bis(thienyl) and tetraphenylethylene (TPE) moieties upon the formation of a N-H—F− hydrogen bond of the imidazole proton. The sensing mechanism exhibited by DTITPE for fluoride ions was confirmed by 1H NMR spectroscopic studies and density functional theory (DFT) calculations. Test strips coated with the molecular sensor can detect fluoride ions in THF, undergoing a color change from white to yellow, which can be observed with the naked eye, showcasing their potential real-world application.

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

Salen-indium/triarylborane triads: synthesis and ratiometric emission-colour changes by fluoride ion binding

2018 ◽  
Vol 47 (15) ◽  
pp. 5310-5317 ◽  
Author(s):  
Sang Woo Kwak ◽  
Hyoshik Kwon ◽  
Ji Hye Lee ◽  
Hyonseok Hwang ◽  
Min Kim ◽  
...  
Keyword(s):  
Color Change ◽  
Fluoride Ion ◽  
Ion Binding ◽  
Pl Spectra ◽  
Colour Changes ◽  
Change Response

Two salen-In triads bearing aryl borane units were prepared and these showed ratiometric ‘color-change’ response in PL spectra upon fluoride binding to the borane moiety.

scholarly journals A Naked-Eye Fluoride Ion Recognition Based Vanilin Derivative Chemosensors

2019 ◽  
Vol 2 (2) ◽  
pp. 110
Author(s):  
R Rahmawati ◽  
Bambang Purwono ◽  
Sabirin Matsjeh
Keyword(s):  
Hydrogen Bond ◽  
Color Change ◽  
Colorimetric Detection ◽  
Bond Formation ◽  
Fluoride Ion ◽  
Bonding Mechanism ◽  
Fluoride Ions ◽  
Hydrogen Bond Formation ◽  
Naked Eye ◽  
Basic Anion

Two new receptors S2 and S6 were designed and synthesized based on benzimidazole and azo-benzimidazole synthesized from vanillin for the colorimetric detection of fluoride ion. The presence of nitro group in S2 and azo in S6 makes –OH  proton (binding site) acidic and therefore it could deprotonate with addition of basic anion such as fluoride. Hydroxyl (–OH) functionality which detects basic fluoride ions via hydrogen-bonding mechanism wich is mechanism involved in the color change of receptor R2 and R6, its mean that initial hydrogen bond formation of F− ion with –OH group.

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
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