Triplex DNA logic gate based upon switching on/off their structure by Ag+/cysteine

The Analyst ◽  
2015 ◽  
Vol 140 (21) ◽  
pp. 7322-7326 ◽  
Author(s):  
Zhiyou Xiao ◽  
Houya Zhu ◽  
Aiping Xin ◽  
Yubin Li ◽  
Liansheng Ling

Based upon switching on/off the structure of triplex DNA by Ag+/cysteine, a triplex DNA logic gate was constructed using TAMRA/BHQ-2-modified oligonucleotides.

RSC Advances ◽  
2014 ◽  
Vol 4 (72) ◽  
pp. 38389-38392 ◽  
Author(s):  
Kai-Cheng Lin ◽  
Chia-Yin Kuo ◽  
Chih-Chun Nieh ◽  
Wei-Lung Tseng

Molecular beacon-based NAND logic gate was simple, rapid, selective, and sensitive for probing triplex DNA binders.


1997 ◽  
Vol 7 (3) ◽  
pp. 739-748
Author(s):  
H. Gualous ◽  
A. Koster ◽  
D. Pascal ◽  
S. Laval

2020 ◽  
Vol E103.C (10) ◽  
pp. 547-549
Author(s):  
Yoshinao MIZUGAKI ◽  
Koki YAMAZAKI ◽  
Hiroshi SHIMADA

2019 ◽  
Author(s):  
Adam Eördögh ◽  
Carolina Paganini ◽  
Dorothea Pinotsi ◽  
Paolo Arosio ◽  
Pablo Rivera-Fuentes

<div>Photoactivatable dyes enable single-molecule imaging in biology. Despite progress in the development of new fluorophores and labeling strategies, many cellular compartments remain difficult to image beyond the limit of diffraction in living cells. For example, lipid droplets, which are organelles that contain mostly neutral lipids, have eluded single-molecule imaging. To visualize these challenging subcellular targets, it is necessary to develop new fluorescent molecular devices beyond simple on/off switches. Here, we report a fluorogenic molecular logic gate that can be used to image single molecules associated with lipid droplets with excellent specificity. This probe requires the subsequent action of light, a lipophilic environment and a competent nucleophile to produce a fluorescent product. The combination of these requirements results in a probe that can be used to image the boundary of lipid droplets in three dimensions with resolutions beyond the limit of diffraction. Moreover, this probe enables single-molecule tracking of lipids within and between droplets in living cells.</div>


Author(s):  
Anu Kiviniemi ◽  
Pasi Virta ◽  
Harri Lönnberg

2017 ◽  
Vol 184 (8) ◽  
pp. 2505-2513 ◽  
Author(s):  
Xiaoting Ji ◽  
Haoyuan Lv ◽  
Minghui Ma ◽  
Binglin Lv ◽  
Caifeng Ding

Biomedicines ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 628
Author(s):  
Dagmara Baraniak ◽  
Jerzy Boryski

This review covers studies which exploit triazole-modified nucleic acids in the range of chemistry and biology to medicine. The 1,2,3-triazole unit, which is obtained via click chemistry approach, shows valuable and unique properties. For example, it does not occur in nature, constitutes an additional pharmacophore with attractive properties being resistant to hydrolysis and other reactions at physiological pH, exhibits biological activity (i.e., antibacterial, antitumor, and antiviral), and can be considered as a rigid mimetic of amide linkage. Herein, it is presented a whole area of useful artificial compounds, from the clickable monomers and dimers to modified oligonucleotides, in the field of nucleic acids sciences. Such modifications of internucleotide linkages are designed to increase the hybridization binding affinity toward native DNA or RNA, to enhance resistance to nucleases, and to improve ability to penetrate cell membranes. The insertion of an artificial backbone is used for understanding effects of chemically modified oligonucleotides, and their potential usefulness in therapeutic applications. We describe the state-of-the-art knowledge on their implications for synthetic genes and other large modified DNA and RNA constructs including non-coding RNAs.


2021 ◽  
Vol 113 ◽  
pp. 110855
Author(s):  
Lei Zhang ◽  
Yuanhe Sun ◽  
Zhenjiang Li ◽  
Lin Wang ◽  
Shuqi Cao ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document