Double-stranded DNA nanobridge enhanced fluorescence of crystal violet/G-quadruplex complex for detection of lead ions and crystal violet

2021 ◽  
pp. 129968
Author(s):  
Jiao Zhou ◽  
Min Qing ◽  
Yu Ling ◽  
Lei Wang ◽  
Nian Bing Li ◽  
...  
Keyword(s):  
Crystal Violet ◽  
Lead Ions ◽  
Enhanced Fluorescence ◽  
Double Stranded Dna ◽  
G Quadruplex

Enzyme-Free Unlabeled DNA Logic Circuits Based on Toehold-Mediated Strand Displacement and Split G-Quadruplex Enhanced Fluorescence

2013 ◽  
Vol 25 (17) ◽  
pp. 2440-2444 ◽  
Author(s):  
Jinbo Zhu ◽  
Libing Zhang ◽  
Tao Li ◽  
Shaojun Dong ◽  
Erkang Wang
Keyword(s):  
Logic Circuits ◽  
Strand Displacement ◽  
Enhanced Fluorescence ◽  
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

Thiazole Orange-Modified Carbon Dots for Ratiometric Fluorescence Detection of G-Quadruplex and Double-Stranded DNA

2018 ◽  
Vol 10 (30) ◽  
pp. 25166-25173 ◽  
Author(s):  
Ming Jin ◽  
Xiangjun Liu ◽  
Xin Zhang ◽  
Linlin Wang ◽  
Tao Bing ◽  
...  
Keyword(s):  
Fluorescence Detection ◽  
Carbon Dots ◽  
Thiazole Orange ◽  
Ratiometric Fluorescence ◽  
Double Stranded Dna ◽  
G Quadruplex

scholarly journals Selective recognition of human telomeric G-quadruplex with designed peptide via hydrogen bonding followed by base stacking interactions

RSC Advances ◽  
2019 ◽  
Vol 9 (69) ◽  
pp. 40255-40262 ◽  
Author(s):  
Shikhar Tyagi ◽  
Sarika Saxena ◽  
Nikita Kundu ◽  
Taniya Sharma ◽  
Amlan Chakraborty ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Synthetic Peptide ◽  
High Selectivity ◽  
Selective Recognition ◽  
Stacking Interactions ◽  
Base Stacking ◽  
Double Stranded Dna ◽  
G Quadruplex ◽  
Guanine Base

A new synthetic peptide is presented. A Glu residue binds through H-bonding to a guanine-base and a Trp residue intercalates with K+ resulting in stabilization of a human telomeric G-quadruplex with high selectivity over a complementary c-rich strand and double-stranded DNA.

Selective recognition of G-quadruplexes by a dimeric carbocyanine dye

RSC Advances ◽  
2016 ◽  
Vol 6 (90) ◽  
pp. 87400-87404 ◽  
Author(s):  
P. Chilka ◽  
P. R. Patlolla ◽  
B. Datta
Keyword(s):  
Selective Recognition ◽  
Dna Molecules ◽  
Double Stranded Dna ◽  
Mixed Sequence ◽  
Carbocyanine Dye ◽  
G Quadruplex

A novel dimeric carbocyanine dye is found to recognise G-quadruplex structures selectively compared to mixed sequence or double-stranded DNA molecules.

Fluorescence Methods for Probing G-Quadruplex Structure in Single- and Double-Stranded DNA

Biochemistry ◽  
2016 ◽  
Vol 55 (26) ◽  
pp. 3714-3725 ◽  
Author(s):  
Aaron J. Stevens ◽  
Hannah L. Kennedy ◽  
Martin A. Kennedy
Keyword(s):  
Quadruplex Structure ◽  
Double Stranded Dna ◽  
G Quadruplex ◽  
Fluorescence Methods

scholarly journals On the Different Mode of Action of Au(I)/Ag(I)-NHC Bis-Anthracenyl Complexes Towards Selected Target Biomolecules

Molecules ◽  
2020 ◽  
Vol 25 (22) ◽  
pp. 5446
Author(s):  
Francesca Binacchi ◽  
Federica Guarra ◽  
Damiano Cirri ◽  
Tiziano Marzo ◽  
Alessandro Pratesi ◽  
...  
Keyword(s):  
Electrostatic Interactions ◽  
Silver Chloride ◽  
Binding Mode ◽  
Heterocyclic Carbenes ◽  
Groove Binding ◽  
Double Stranded Dna ◽  
G Quadruplex ◽  
Gold Compounds ◽  
Geometrical Constraints ◽  
Fluorescence Titrations

Gold and silver N-heterocyclic carbenes (NHCs) are emerging for therapeutic applications. Multiple techniques are here used to unveil the mechanistic details of the binding to different biosubstrates of bis(1-(anthracen-9-ylmethyl)-3-ethylimidazol-2-ylidene) silver chloride [Ag(EIA)2]Cl and bis(1-(anthracen-9-ylmethyl)-3-ethylimidazol-2-ylidene) gold chloride [Au(EIA)2]Cl. As the biosubstrates, we tested natural double-stranded DNA, synthetic RNA polynucleotides (single-poly(A), double-poly(A)poly(U) and triple-stranded poly(A)2poly(U)), DNA G-quadruplex structures (G4s), and bovine serum albumin (BSA) protein. Absorbance and fluorescence titrations, mass spectrometry together with melting and viscometry tests show significant differences in the binding features between silver and gold compounds. [Au(EIA)2]Cl covalently binds BSA. It is here evidenced that the selectivity is high: low affinity and external binding for all polynucleotides and G4s are found. Conversely, in the case of [Ag(EIA)2]Cl, the binding to BSA is weak and relies on electrostatic interactions. [Ag(EIA)2]Cl strongly/selectively interacts only with double strands by a mechanism where intercalation plays the major role, but groove binding is also operative. The absence of an interaction with triplexes indicates the major role played by the geometrical constraints to drive the binding mode.

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
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