A Ratiometric Fluorescent DNA Radar Based on Contrary Response of DNA/Silver Nanoclusters and G-Quadruplex/Crystal Violet

2019 ◽  
Vol 11 (28) ◽  
pp. 25066-25073 ◽  
Author(s):  
Shuang Wang ◽  
Shasha Lu ◽  
Jiahui Zhao ◽  
Xiurong Yang
Keyword(s):  
Crystal Violet ◽  
Silver Nanoclusters ◽  
G Quadruplex

Crystal violet as a G-quadruplex-selective probe for sensitive amperometric sensing of lead

2011 ◽  
Vol 47 (43) ◽  
pp. 11909 ◽  
Author(s):  
Feng Li ◽  
Yan Feng ◽  
Can Zhao ◽  
Bo Tang
Keyword(s):  
Crystal Violet ◽  
G Quadruplex ◽  
Amperometric Sensing

FRET-based Ratiometric MicroRNA Detection with G-quadruplex-stabilized Silver Nanoclusters

2017 ◽  
Vol 75 (11) ◽  
pp. 1103 ◽  
Author(s):  
Ruoyun Lin ◽  
Yang Chen ◽  
Guangyu Tao ◽  
Xiaojing Pei ◽  
Feng Liu ◽  
...  
Keyword(s):  
Silver Nanoclusters ◽  
Microrna Detection ◽  
G Quadruplex

A luminescence switch-on assay for the detection of specific gene deletion using G-quadruplex DNA and silver nanoclusters

2017 ◽  
Vol 1 (1) ◽  
pp. 128-131 ◽  
Author(s):  
Modi Wang ◽  
Wanhe Wang ◽  
Chenfu Liu ◽  
Jinbiao Liu ◽  
Tian-Shu Kang ◽  
...  
Keyword(s):  
Gene Deletion ◽  
Silver Nanoclusters ◽  
Specific Gene ◽  
Effective Distance ◽  
Quadruplex Dna ◽  
G Quadruplex ◽  
Deletion Detection

A switch-on gene deletion detection platform is constructed based on the alteration of the effective distance between G-quadruplex DNA and AgNCs.

How G-quadruplex topology and loop sequences affect optical properties of DNA-templated silver nanoclusters

Nano Research ◽  
2018 ◽  
Vol 11 (4) ◽  
pp. 2237-2247 ◽  
Author(s):  
Guangyu Tao ◽  
Yang Chen ◽  
Ruoyun Lin ◽  
Jiang Zhou ◽  
Xiaojing Pei ◽  
...  
Keyword(s):  
Optical Properties ◽  
Silver Nanoclusters ◽  
G Quadruplex

Crystal violet–G-quadruplex complexes as fluorescent sensors for homogeneous detection of potassium ion

2009 ◽  
Vol 25 (1) ◽  
pp. 88-93 ◽  
Author(s):  
De-Ming Kong ◽  
Jun-Hong Guo ◽  
Wei Yang ◽  
Yong-E Ma ◽  
Han-Xi Shen
Keyword(s):  
Crystal Violet ◽  
Fluorescent Sensors ◽  
Potassium Ion ◽  
G Quadruplex

scholarly journals A study of the interaction of cationic dyes with gold nanostructures

RSC Advances ◽  
2021 ◽  
Vol 11 (29) ◽  
pp. 17694-17703
Author(s):  
Fengyuan Shan ◽  
Luca Panariello ◽  
Gaowei Wu ◽  
Asterios Gavriilidis ◽  
Helen H. Fielding ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Gold Nanoparticles ◽  
Crystal Violet ◽  
Gold Nanoclusters ◽  
Cationic Dyes ◽  
Silver Nanoclusters ◽  
Gold Nanostructures ◽  
Gold Silver

The interaction of methylene blue and crystal violet dyes with a range of gold nanoparticles (AuNPs), gold nanoclusters and gold/silver nanoclusters is reported.

scholarly journals Fluorescent AgNCs Formed on Bifunctional DNA Template for Potassium Ion Detection

Chemosensors ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 349
Author(s):  
Patrycja Filipczuk ◽  
Angelika Świtalska ◽  
Joanna Kosman ◽  
Grzegorz Nowaczyk ◽  
Anna Dembska
Keyword(s):  
Structural Changes ◽  
Green Emission ◽  
Potassium Transport ◽  
Silver Nanoclusters ◽  
Fluorescence Signal ◽  
Red Emission ◽  
Binding Preference ◽  
G Quadruplex ◽  
Na Ions ◽  
Dna Template

In this study, we examined properties of silver nanoclusters, which are AgNCs stabilized by DNA oligonucleotide scaffold containing G-quadruplex-forming sequences: human telomeric (Tel22) or thrombin-binding aptamer (TBA). Thus, we obtained two fluorescent probes abbreviated as Tel22C12-AgNCs and TBAC12-AgNCs, which were characterized using absorption, circular dichroism and fluorescence spectroscopy. Both probes emit green and red fluorescence. The presence of silver nanoclusters did not destabilize the formed G-quadruplexes. The structural changes of probes upon binding K+ or Na+ ions cause quenching in their red emission. Green emission was slightly quenched only in the case of Tel22C12-AgNCs; on the contrary, for TBAC12-AgNC’s green emission, we observed an increasing fluorescence signal. Moreover, the Tel22C12-AgNCs system shows not only a higher binding preference for K+ over Na+, but it was able to monitor small changes in K+ concentrations in the buffer mimicking extracellular conditions (high content of Na+ ions). These results suggest that Tel22C12-AgNCs exhibit the potential to monitor transmembrane potassium transport.

A duplex connection can further illuminate G-quadruplex/crystal violet complex

2019 ◽  
Vol 55 (13) ◽  
pp. 1911-1914 ◽  
Author(s):  
Shuang Wang ◽  
Jiahui Zhao ◽  
Shasha Lu ◽  
Jian Sun ◽  
Xiurong Yang
Keyword(s):  
Crystal Violet ◽  
Dna Detection ◽  
Target Dna ◽  
G Quadruplex

A duplex connection can distinctly enhance the fluorescence of G-quadruplex/crystal violet, which also was used in target DNA detection.

scholarly journals A novel, label-free fluorescence detection method for the formation of G-quadruplex DNA based on DNA-templated silver nanoclusters

RSC Advances ◽  
2017 ◽  
Vol 7 (40) ◽  
pp. 24628-24632 ◽  
Author(s):  
Jiaona Xu ◽  
Chunying Wei
Keyword(s):  
Fluorescence Detection ◽  
Detection Method ◽  
Silver Nanoclusters ◽  
Label Free ◽  
Quadruplex Dna ◽  
G Quadruplex ◽  
Ag Ncs

A novel, label-free fluorescence detection method was proposed for the formation of the G-quadruplex DNAs based on placing two DNA-Ag NCs together to light-up fluorescence.

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