Two Rhodamine-based Turn on Chemosensors with High Sensitivity, Selectivity, and Naked-Eye Detection for Hg2+

2017 ◽  
Vol 30 (2) ◽  
pp. 225-230 ◽  
Author(s):  
Yan Zhou ◽  
Li-qiang Yan ◽  
Zhi-neng Kong ◽  
Wen-qi Du ◽  
Bao-ying Wu ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Eye Detection ◽  
Naked Eye ◽  
Turn On ◽  
Naked Eye Detection

Naked-Eye Detection of Hg(II) Ions by Visible Light-Induced Polymerization Initiated by a Hg(II)-Selective Photoredox Catalyst

2021 ◽  
Author(s):  
Hyungwook Kim ◽  
Young Jae Jung ◽  
Jungkyu K. Lee
Keyword(s):  
Visible Light ◽  
Signal Amplification ◽  
Eye Detection ◽  
Naked Eye ◽  
Turn On ◽  
Novel Strategy ◽  
Amplification Strategy ◽  
Naked Eye Detection

We developed a novel strategy for signal amplification strategy using a visible light-induced photopolymerization, initiated by a selective turn-on photoredox catalyst. As photoredox catalysts, fluorescein derivatives are able to initiate...

scholarly journals A rhodamine-based dual chemosensor for the naked-eye detection of Hg2+ and enhancement of the fluorescence emission for Fe3+

2020 ◽  
Vol 19 (12) ◽  
pp. 1690-1696
Author(s):  
Jian-Peng Hu ◽  
Hao-Hang Yang ◽  
Qi Lin ◽  
Hong Yao ◽  
You-Ming Zhang ◽  
...  
Keyword(s):  
Metal Ions ◽  
Fluorescence Emission ◽  
Eye Detection ◽  
Naked Eye ◽  
Rhodamine Derivative ◽  
Turn On ◽  
Trimesoyl Chloride ◽  
Naked Eye Detection

Herein, we synthesized a trimesoyl chloride–rhodamine derivative TR. TR exhibited metal ions complexation induced photophysical ‘turn-on’ signaling responses to Hg2+ and Fe3+.

scholarly journals Hydrogen-Bonded Colorimetric and Fluorescence Chemosensor for Fluoride Anion With High Selectivity and Sensitivity: A Review

2021 ◽  
Vol 9 ◽  
Author(s):  
Zhifeng Deng ◽  
Cheng Wang ◽  
Haichang Zhang ◽  
Taotao Ai ◽  
Kaichang Kou
Keyword(s):  
High Sensitivity ◽  
Fluoride Anion ◽  
Potential Hazard ◽  
Eye Detection ◽  
Extraction Ability ◽  
Hydrogen Bond Interaction ◽  
Naked Eye ◽  
Surrounding Environment ◽  
Sensitivity And Selectivity ◽  
Naked Eye Detection

In recent years, the wide application of fluoride materials has grown rapidly, therefore excessive discharge in the surrounding environment, especially in drinking water and organic effluent, has become a potential hazard to humans, and has even resulted in fluorosis disease. The development of a highly effective and convenient method to recognize fluoride anions in surrounding environments seems necessary and urgent. Among which, the development of a colorimetric and fluorescence fluoride chemosensor with obvious color changing allowing for naked-eye detection with high sensitivity and selectivity is more interesting and challenging. In this minireview, current novel colorimetric and fluorescence chemosensors for fluoride anions by hydrogen-bond interaction are introduced, including obvious color changing by naked-eye detection, high sensitivity and selectivity, non-pollution and fluoride extraction ability, aqueous detection, and other additional functions. Finally, the perspective of the fluoride chemosensor design concept and potential evolution trends are pointed out.

Non-enzymatic colorimetric sensor strip based on melamine-functionalized gold nanoparticles assembled on polyamide nanofiber membranes for the detection of metronidazole

2019 ◽  
Vol 11 (29) ◽  
pp. 3706-3713 ◽  
Author(s):  
Mohammed Awad Abedalwafa ◽  
Yan Li ◽  
Chunfang Ni ◽  
Gang Yang ◽  
Lu Wang
Keyword(s):  
Gold Nanoparticles ◽  
Color Change ◽  
High Sensitivity ◽  
Colorimetric Sensor ◽  
Eye Detection ◽  
Naked Eye ◽  
Functionalized Gold Nanoparticles ◽  
Sensitivity And Selectivity ◽  
Nanofiber Membranes ◽  
Naked Eye Detection

Non-enzymatic colorimetric sensor strip for detection of metronidazole (MTZ) was designed and constructed, with high sensitivity and selectivity. Which can be used for naked-eye detection of MTZ with a visible color change from pink to purple.

Selective Naked-Eye Detection of Hg2+ through an Efficient Turn-On Photoinduced Electron Transfer Fluorescent Probe and Its Real Applications

2014 ◽  
Vol 86 (17) ◽  
pp. 8693-8699 ◽  
Author(s):  
Priyanka Srivastava ◽  
Syed S. Razi ◽  
Rashid Ali ◽  
Ramesh C. Gupta ◽  
Suresh S. Yadav ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Fluorescent Probe ◽  
Photoinduced Electron Transfer ◽  
Eye Detection ◽  
Naked Eye ◽  
Turn On ◽  
Naked Eye Detection

scholarly journals A Gold Growth-Based Plasmonic ELISA for the Sensitive Detection of Fumonisin B1 in Maize

Toxins ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 323 ◽  
Author(s):  
Shengnan Zhan ◽  
Lingyan Zheng ◽  
Yaofeng Zhou ◽  
Kesheng Wu ◽  
Hong Duan ◽  
...  
Keyword(s):  
Horseradish Peroxidase ◽  
Color Change ◽  
Fumonisin B1 ◽  
High Sensitivity ◽  
Enzyme Linked Immunosorbent Assay ◽  
Eye Detection ◽  
Naked Eye ◽  
Accuracy And Precision ◽  
Conventional Elisa ◽  
Naked Eye Detection

In this paper, a highly sensitive plasmonic enzyme-linked immunosorbent assay (pELISA) was developed for the naked-eye detection of fumonisin B1 (FB1). Glucose oxidase (GOx) was used as an alternative to horseradish peroxidase as the carrier of the competing antigen. GOx catalyzed the oxidation of glucose to produce hydrogen peroxide, which acted as a reducing agent to reduce Au3+ to Au on the surface of gold seeds (5 nm), This reaction led to a color change in the solution from colorless to purple, which was observable to the naked eye. Various parameters that could influence the detection performance of pELISA were investigated. The developed method exhibited a considerably high sensitivity for FB1 qualitative naked-eye detection, with a visible cut-off limit of 1.25 ng/mL. Moreover, the proposed pELISA showed a good linear range of 0.31–10 ng/mL with a half maximal inhibitory concentration (IC50) of 1.86 ng/mL, which was approximately 13-fold lower than that of a horseradish peroxidase- (HRP)-based conventional ELISA. Meanwhile, the proposed method was highly specific and accurate. In summary, the new pELISA exhibited acceptable accuracy and precision for sensitive naked-eye detection of FB1 in maize samples and can be applied for the detection of other chemical contaminants.

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.

A selective purine-based fluorescent chemosensor for the “naked-eye” detection of zinc ions (Zn2+): applications in live cell imaging and test strips

2020 ◽  
Vol 44 (35) ◽  
pp. 15195-15201 ◽  
Author(s):  
Haiyan Xu ◽  
Wei Chen ◽  
Weixia Zhang ◽  
Lixin Ju ◽  
Hongfei Lu
Keyword(s):  
Live Cell Imaging ◽  
Cell Imaging ◽  
High Selectivity ◽  
Living Cells ◽  
Fluorescent Chemosensor ◽  
Zinc Ions ◽  
Eye Detection ◽  
Naked Eye ◽  
Turn On ◽  
Naked Eye Detection

In this work, a novel purine based probe PTAHN was successfully designed and synthesized. PTAHN displayed high selectivity towards Zn2+via turn-on fluorescence. What's more, PTAHN can be proficiently employed for imaging Zn2+ in living cells.

A T-shaped triazatruxene probe for the naked-eye detection of HCl gas with high sensitivity and selectivity

2016 ◽  
Vol 52 (13) ◽  
pp. 2748-2751 ◽  
Author(s):  
Xiang-Chun Li ◽  
Chun-Yu Wang ◽  
Yi Wan ◽  
Wen-Yong Lai ◽  
Li Zhao ◽  
...  
Keyword(s):  
Schiff Base ◽  
High Sensitivity ◽  
Eye Detection ◽  
Naked Eye ◽  
Sensitivity And Selectivity ◽  
Hcl Gas ◽  
Naked Eye Detection

A T-shaped Schiff-base triazatruxene derivative (TATNFF) was designed, synthesized, and explored as a sensitive probe to detect HCl gas by the naked eye.

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