Rhodamine–benzothiazole conjugate as an efficient multimodal sensor for Hg2+ ions and its application to imaging in living cells

2018 ◽  
Vol 42 (14) ◽  
pp. 11665-11672 ◽  
Author(s):  
Perumal Sakthivel ◽  
Karuppannan Sekar ◽  
Gandhi Sivaraman ◽  
Subramanian Singaravadivel
Keyword(s):  
Rhodamine B ◽  
Color Change ◽  
Living Cells ◽  
Fluorescence Response ◽  
Eye Color ◽  
Naked Eye ◽  
Turn On ◽  
Rhodamine B Dye

A rhodamine B dye bearing a benzothiazole conjugate is designed and synthesized, it shows a highly selective and sensitive naked-eye color change and turn-on fluorescence response to Hg2+ ions.

scholarly journals A new rhodamine fluorescent OFF-ON-OFF probe for selective sensing of Fe3+ and AcO- in aqueous media and living cells

2018 ◽  
Vol 238 ◽  
pp. 04002
Author(s):  
Qinglei Liu ◽  
Huimin Liu ◽  
Yanan Lei ◽  
Yan Gao ◽  
Bing Zhao
Keyword(s):  
Fluorescence Probe ◽  
Color Change ◽  
Aqueous Media ◽  
Living Cells ◽  
Eye Color ◽  
Naked Eye ◽  
Fluorescent Response ◽  
Good Biocompatibility ◽  
Anions And Cations ◽  
Displacement Approach

A new fluorescent chemosensor for Fe3+ was developed based on a rhodamine platform. L displayed highly selective and sensitive “OFF-ON” fluorescence response and naked-eye color change to Fe3+ in aqueous solution. The resulting L-Fe3+ complex was found to act as a selective“ ON-OFF” fluorescence probe for AcO- against common anions and cations with a Fe3+ displacement approach. The detection limits of L to Fe3+ and L-Fe3+ complex to AcO- were estimated to be 6.04×10-8 mol/L and 7.51×10-8 mol/L, respectively. The good biocompatibility of L enabled the investigation of fluorescent response for Fe3+ and AcO- in living Ana-1 cells by confocal microscope.

A naked-eye visible and turn-on fluorescence probe for Fe3+ and its bioimaging application in living cells

2016 ◽  
Vol 237 ◽  
pp. 501-508 ◽  
Author(s):  
Yaming Liu ◽  
Jinyu Zhang ◽  
Jiaxi Ru ◽  
Xiang Yao ◽  
Yang Yang ◽  
...  
Keyword(s):  
Fluorescence Probe ◽  
Living Cells ◽  
Naked Eye ◽  
Turn On

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

Colorimetric and Fluorescent Probe for Hypochlorite with High Selectivity

2013 ◽  
Vol 295-298 ◽  
pp. 475-478 ◽  
Author(s):  
Zhi Xiang Han ◽  
Ming Hui Du ◽  
Guo Xi Liang ◽  
Xiang Yang Wu
Keyword(s):  
Reactive Oxygen Species ◽  
Aqueous Solution ◽  
Detection Limit ◽  
Fluorescent Probe ◽  
Rhodamine B ◽  
High Selectivity ◽  
Reactive Oxygen ◽  
Living Cells ◽  
Oxygen Species ◽  
Turn On

Rhodamine B thiohydrazide (RBS) was firstly employed as turn-on fluorescent probe for hypochlorite in aqueous solution and living cells. It exhibits a stable response to hypochlorite from 1.0×10-6to 1.0×10-5M with a detection limit of 3.3×10-7M. The response of this probe to hypochlorite is fast and highly selective compared with other reactive oxygen species (such as.OH,1O2, H2O2) and other common anions (such as X-, ClO2-, ClO4-, NO3-, NO2-, OH-, Ac-, CO32-, SO42-).

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.

Naked eye detection of glutathione in living cells using rhodamine B-functionalized gold nanoparticles coupled with FRET

2012 ◽  
Vol 92 (1) ◽  
pp. 778-782 ◽  
Author(s):  
Huai-Hong Cai ◽  
Hui Wang ◽  
Jinhui Wang ◽  
Wei Wei ◽  
Pei-Hui Yang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Rhodamine B ◽  
Living Cells ◽  
Eye Detection ◽  
Naked Eye ◽  
Functionalized Gold Nanoparticles ◽  
Naked Eye Detection

A hemicyanine-based “turn-on” fluorescent probe for the selective detection of Cu2+ ions and imaging in living cells

2020 ◽  
Vol 12 (34) ◽  
pp. 4181-4184
Author(s):  
Bai Li ◽  
Jiejian Kou ◽  
Huihui Mei ◽  
Xin Gu ◽  
Minghui Wang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Fluorescent Probe ◽  
Living Cells ◽  
Selective Detection ◽  
Fluorescence Response ◽  
Turn On

A novel hemicyanine-based fluorescent probe was developed for the fast, selective, and reversible detection of Cu2+ ions with “turn-on” fluorescence response in the aqueous solution.

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