Tb-MOF: a naked-eye and regenerable fluorescent probe for selective and quantitative detection of Fe3+and Al3+ions

RSC Advances ◽  
2016 ◽  
Vol 6 (97) ◽  
pp. 94622-94628 ◽  
Author(s):  
Mengfei Zhang ◽  
Jing Han ◽  
Haipeng Wu ◽  
Qing Wei ◽  
Gang Xie ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
High Selectivity ◽  
Quantitative Detection ◽  
Naked Eye

A unique Tb-MOF fluorescent probe has features that are visible to the naked-eye and can be regenerated; it presents high selectivity and sensitivity to the quantitative detection of Fe3+and Al3+ions.

An efficient non-reaction based colorimetric and fluorescent probe for the highly selective discrimination of Pd0 and Pd2+ in aqueous media

RSC Advances ◽  
2016 ◽  
Vol 6 (65) ◽  
pp. 60546-60549 ◽  
Author(s):  
Lubna Rasheed ◽  
Muhammad Yousuf ◽  
Il Seung Youn ◽  
Genggongwo Shi ◽  
Kwang S. Kim
Keyword(s):  
Fluorescent Probe ◽  
High Selectivity ◽  
Aqueous Media ◽  
Oxidation States ◽  
Probe Molecule ◽  
Naked Eye ◽  
Fluorogenic Probe ◽  
The Difference

A novel anthraquinone-imidazole based colorimetric and fluorogenic probe 1 discriminates the oxidation states of Pd0 and Pd2+ by naked eye with high selectivity in aqueous media due to the difference in coordination in the pocket of probe molecule.

scholarly journals Detection of organic amines using a ratiometric chromophoric fluorescent probe with a significant emission shift

2020 ◽  
Vol 44 (7-8) ◽  
pp. 475-481
Author(s):  
Dan Wu ◽  
Yi Liu ◽  
Fei Zheng ◽  
Shi-Qi Rong ◽  
Tao Yang ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Nucleophilic Addition ◽  
High Selectivity ◽  
Color Change ◽  
Intramolecular Charge Transfer ◽  
Signaling Mechanism ◽  
Eye Color ◽  
Naked Eye ◽  
Spectrometric Measurements ◽  
Organic Amines

Taking advantages of both the well-known α,β-unsaturated structure and the special nucleophilicity of organic amines toward its acceptor moieties, intramolecular charge transfer as a signaling mechanism is used to design and synthesize a new ratiometric chromophoric fluorescent probe (BI-CA-ID) with large emission shifts toward organic amines. This probe is employed for the detection of organic amines with high selectivity and sensitivity and a “naked-eye” color change (from red to colorless). Ultraviolet–visible and fluorescence spectrometric measurements are used to determine detection limits as low as 0.024 and 0.43 μM. Furthermore, nucleophilic addition of the amine on the α,β-unsaturated of BI-CA-ID indicated that the sensing mechanism occurs via interruption of the π-conjugation.

A fluorescent probe for the specific detection of cysteine in human serum samples

2019 ◽  
Vol 11 (26) ◽  
pp. 3280-3285 ◽  
Author(s):  
Zhen Huang ◽  
Cuiyan Wu ◽  
Yaqian Li ◽  
Zile Zhou ◽  
Ruihua Xie ◽  
...  
Keyword(s):  
Human Serum ◽  
Fluorescent Probe ◽  
High Selectivity ◽  
Color Change ◽  
Eye Detection ◽  
Specific Detection ◽  
Serum Samples ◽  
Naked Eye ◽  
Turn On ◽  
Naked Eye Detection

A turn-on fluorescent probe for cysteine with high selectivity was designed and synthetized. The probe can be used for “naked-eye” detection of Cys with an obvious color change from yellow to colorless. The probe could be applied for Cys detection in real human serum.

scholarly journals Use of Fluorescent Probe for the Fast and Quantitative Detection of Chemicals in the Blood

2019 ◽  
Vol IV (I) ◽  
pp. 1-10
Author(s):  
Urooj Naseem ◽  
Ayesha Ayub ◽  
Fatima Iqbal ◽  
Farhan Sohail
Keyword(s):  
Detection Limit ◽  
Chemical Analysis ◽  
Fluorescent Probe ◽  
Fluorescent Probes ◽  
Incubation Time ◽  
High Selectivity ◽  
Mixing Time ◽  
Detection Limits ◽  
Quantitative Detection ◽  
Spatiotemporal Resolution

Different methods are adopted for the quantitative detection of chemicals in the blood. One of which is discussed here, i.e., the fluorescent probes that are preferred in biological systems owing to their sensitivity, high selectivity, elevated spatiotemporal resolution, and noninvasiveness. In recent years, for the identification of various chemicals, a large number of probes have been designed. For the detection as well as identification of fluorescent probes, sulfides, different chemicals such as iron, glucose, glutathione etc., in the blood are discussed. The maximum detection limits of newly synthesized fluorescent probes for different chemical analysis are studied and comparatively analyzed. Different parameters like pH, incubation time, mixing time, the detection limit of the fluorescent probes is also explored.

A novel reversible fluorescent probe based on naphthalimide for sequential detection of aluminum (Al3+) and fluoride (F-) ions and its applications

2021 ◽  
Author(s):  
Shanzhu Zhang ◽  
Yunlan Gu ◽  
Zongqian Shi ◽  
Nan Lu ◽  
Hai-Yan Xu
Keyword(s):  
Schiff Base ◽  
Fluorescent Probe ◽  
High Selectivity ◽  
Sequential Detection ◽  
Naked Eye ◽  
One Step ◽  
The One

A new Schiff base fluorescent probe NBP derived from the one-step condensation strategy of 2-butyl-6-hydroxy-1,3-dioxo-2,3-dihydro-1H-benzo[de]isoquinoline-5-carbaldehyde and N-(2-(hydrazinecarbonyl)phenyl)benzamide was synthesized and characterized. NBP exhibited high selectivity toward Al3+ along with naked-eye...

scholarly journals A highly sensitive octopus-like azobenzene fluorescent probe for determination of abamectin B1 in apples

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhenlong Guo ◽  
YiFei Su ◽  
Kexin Li ◽  
MengYi Tang ◽  
Qiang Li ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Limit Of Detection ◽  
Quantitative Detection ◽  
Fluorescence Signal ◽  
Ionization Mass ◽  
Limit Of Quantification ◽  
Visible Absorption ◽  
Esi Ms ◽  
Relative Standard ◽  
Ft Ir

AbstractThe development of detecting residual level of abamectin B1 in apples is of great importance to public health. Herein, we synthesized a octopus-like azobenzene fluorescent probe 1,3,5-tris (5′-[(E)-(p-phenoxyazo) diazenyl)] benzene-1,3-dicarboxylic acid) benzene (TPB) for preliminary detection of abamectin B1 in apples. The TPB molecule has been characterized by ultraviolet–visible absorption spectrometry, 1H-nuclear magnetic resonance, fourier-transform infrared (FT-IR), electrospray ionization mass spectroscopy (ESI-MS) and fluorescent spectra. A proper determination condition was optimized, with limit of detection and limit of quantification of 1.3 µg L−1 and 4.4 μg L−1, respectively. The mechanism of this probe to identify abamectin B1 was illustrated in terms of undergoing aromatic nucleophilic substitution, by comparing fluorescence changes, FT-IR and ESI-MS. Furthermore, a facile quantitative detection of the residual abamectin B1 in apples was achieved. Good reproducibility was present based on relative standard deviation of 2.2%. Six carboxyl recognition sites, three azo groups and unique fluorescence signal towards abamectin B1 of this fluorescent probe demonstrated reasonable sensitivity, specificity and selectivity. The results indicate that the octopus-like azobenzene fluorescent probe can be expected to be reliable for evaluating abamectin B1 in agricultural foods.

scholarly journals A pH tuning single fluorescent probe based on naphthalene for dual-analytes (Mg2+ and Al3+) and its application in cell imaging

RSC Advances ◽  
2020 ◽  
Vol 10 (36) ◽  
pp. 21399-21405
Author(s):  
Chunwei Yu ◽  
Shuhua Cui ◽  
Yuxiang Ji ◽  
Shaobai Wen ◽  
Li Jian ◽  
...  
Keyword(s):  
Schiff Base ◽  
Fluorescent Probe ◽  
Cell Imaging ◽  
Quantitative Detection

In this study, a naphthalene Schiff-base P which serves as a dual-analyte probe for the quantitative detection of Al3+ and Mg2+ has been designed.

A new phenothiazine-based fluorescent probe for detection of hydrazine with naked-eye color change properties

2021 ◽  
Author(s):  
Nian Rao ◽  
Yi Le ◽  
Dan Li ◽  
Yan Zhang ◽  
Qin Wang ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Color Change ◽  
Eye Color ◽  
Naked Eye

Microfluidic bead trap as a visual bar for quantitative detection of oligonucleotides

Lab on a Chip ◽  
2017 ◽  
Vol 17 (19) ◽  
pp. 3240-3245 ◽  
Author(s):  
Zichen Zhao ◽  
Yuanye Bao ◽  
Lok Ting Chu ◽  
John Kin Lim Ho ◽  
Ching-Chang Chieng ◽  
...  
Keyword(s):  
Quantitative Detection ◽  
Naked Eye

We demonstrate a microfluidic bead trap capable of forming a dipstick-type bar visible to the naked eye for simple and quantitative detection of oligonucleotides.

Nanomolar colorimetric quantitative detection of Fe3+ and PPi with high selectivity

2016 ◽  
Vol 159 ◽  
pp. 249-253 ◽  
Author(s):  
Zhanxian Li ◽  
Haixia Li ◽  
Caixia Shi ◽  
Mingming Yu ◽  
Liuhe Wei ◽  
...  
Keyword(s):  
High Selectivity ◽  
Quantitative Detection
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