Trypsin encapsulated gold-silver bimetallic nanoclusters for recognition of quinalphos via fluorescence quenching and of Zn2+ and Cd2+ ions via fluorescence enhancement

2020 ◽  
pp. 114830
Author(s):  
Soujanya Akavaram ◽  
Mittal L. Desai ◽  
Tae-Jung Park ◽  
Z.V.P. Murthy ◽  
Suresh Kumar Kailsa
Keyword(s):  
Fluorescence Quenching ◽  
Fluorescence Enhancement ◽  
Bimetallic Nanoclusters ◽  
Gold Silver

Triazole appending ruthenium(ii) polypyridine complex for selective sensing of phosphate anions through C–H–anion interaction and copper(ii) ions via cancer cells

2020 ◽  
Vol 44 (16) ◽  
pp. 6186-6196 ◽  
Author(s):  
Mohanraj Ramachandran ◽  
Sambandam Anandan
Keyword(s):  
Fluorescence Quenching ◽  
Cancer Cells ◽  
Fluorescence Enhancement ◽  
Different Types ◽  
Anions And Cations ◽  
Phosphate Anions ◽  
Anion Interaction

Selective fluorescence enhancement by H2PO4−/H2P2O72− anions and maximum fluorescence quenching by Cu2+ ions were attained upon treatment with different types of anions and cations, respectively.

Enhanced Electrochemiluminescence Behavior of Gold–Silver Bimetallic Nanoclusters and Its Sensing Application for Mercury(II)

2017 ◽  
Vol 89 (14) ◽  
pp. 7788-7794 ◽  
Author(s):  
Qingfeng Zhai ◽  
Huanhuan Xing ◽  
Xiaowei Zhang ◽  
Jing Li ◽  
Erkang Wang
Keyword(s):  
Bimetallic Nanoclusters ◽  
Gold Silver ◽  
Sensing Application

scholarly journals Fluorescence Enhancement Using Bimetal Surface Plasmon-Coupled Emission from 5-Carboxyfluorescein (FAM)

Micromachines ◽  
2018 ◽  
Vol 9 (9) ◽  
pp. 460 ◽  
Author(s):  
Nhu Tran ◽  
Kieu Trinh ◽  
Jun-Ho Lee ◽  
Won Yoon ◽  
Heongkyu Ju
Keyword(s):  
Surface Plasmons ◽  
Surface Plasmon ◽  
Coefficient Of Variation ◽  
Fluorescence Enhancement ◽  
Fluorescence Emission ◽  
High Reproducibility ◽  
Practical Applications ◽  
Biochemical Assays ◽  
Gold Silver ◽  
Spectral Channels

We demonstrate the enhancement of fluorescence emission from a dye, 5-carboxyfluorescein (FAM), which couples with surface plasmons at the spectral channels of excitation and emission. Experiments and calculations revealed that bimetallic (gold-silver) plasmon, as compared to the monometallic ones, allowed such coupling to be enhanced, at both the spectral channels. We achieved the maximum fluorescence enhancement level of 46.5-fold, with markedly high reproducibility (coefficient of variation ~ 0.5%) at a FAM concentration of 10 nM. We also found that higher fluorescence enhancement was more likely to be reproducible. This encourages the use of this technology for practical applications in fluorescence-based biochemical assays. Moreover, we investigated a FAM concentration-dependent enhancement of fluorescence. It was found that fluorescence enhancement decreased and saturated at above 10 nM concentration possibly due to partial photo-bleaching of FAM molecules.

A series of selective and sensitive fluorescent sensors based on a thiophen-2-yl-benzothiazole unit for Hg2+

2016 ◽  
Vol 40 (3) ◽  
pp. 2333-2342 ◽  
Author(s):  
Qunbo Mei ◽  
Ruqiang Tian ◽  
Yujie Shi ◽  
Qingfang Hua ◽  
Chen Chen ◽  
...  
Keyword(s):  
Fluorescence Quenching ◽  
Fluorescent Probe ◽  
Fluorescent Probes ◽  
Fluorescence Enhancement ◽  
Fluorescent Sensors ◽  
Benzothiazole Derivatives ◽  
Different Types ◽  
Quenching Probe ◽  
Ratiometric Fluorescent Probe

Different types of fluorescent probes for Hg2+ based on the 5-thiophen-2-yl-benzothiazole derivatives (TBT, CTBT, DTBT and NTBT) were realized by changing the subsituents, including the fluorescence quenching probe, the fluorescence enhancement probe and the ratiometric fluorescent probe.

Tiopronin protected gold-silver bimetallic nanoclusters for sequential detection of Fe3+ and ascorbic acid in serum

2022 ◽  
Vol 174 ◽  
pp. 107048
Author(s):  
Xiupei Yang ◽  
Jing Yang ◽  
Maoxue Zhang ◽  
Ya Wang ◽  
Baowen Zhang ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Sequential Detection ◽  
Bimetallic Nanoclusters ◽  
Gold Silver
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