Fluorescence detection for DNA using hybridization chain reaction with enzyme-amplification

2010 ◽  
Vol 46 (18) ◽  
pp. 3089 ◽  
Author(s):  
Shuyan Niu ◽  
Yu Jiang ◽  
Shusheng Zhang
Keyword(s):  
Fluorescence Detection ◽  
Hybridization Chain Reaction ◽  
Chain Reaction ◽  
Enzyme Amplification

Versatile fluorescence detection of microRNA based on novel DNA hydrogel-amplified signal probes coupled with DNA walker amplification

2019 ◽  
Vol 55 (27) ◽  
pp. 3919-3922 ◽  
Author(s):  
Chunli Li ◽  
Hongkun Li ◽  
Junjun Ge ◽  
Guifen Jie
Keyword(s):  
Fluorescence Detection ◽  
Hybridization Chain Reaction ◽  
Ultrasensitive Detection ◽  
Chain Reaction ◽  
Dna Walker ◽  
Dna Hydrogel

A novel DNA hydrogel-amplified versatile fluorescence platform combined with hybridization chain reaction (HCR) and DNA walking multiple amplification was developed for ultrasensitive detection of miRNA.

A new method for the in situ assay of α-glucosidase activity and inhibitor screening through an enzyme substrate-mediated DNA hybridization chain reaction

2019 ◽  
Vol 43 (24) ◽  
pp. 9458-9465
Author(s):  
Xiquan Yue ◽  
Lihong Su ◽  
Xu Chen ◽  
Junfeng Liu ◽  
Longpo Zheng ◽  
...  
Keyword(s):  
Small Molecule ◽  
Dna Hybridization ◽  
New Method ◽  
Hybridization Chain Reaction ◽  
Chain Reaction ◽  
Inhibitor Screening ◽  
Glucosidase Activity ◽  
Enzyme Substrate ◽  
In Situ Assay

The strategy is based on small molecule-mediated hybridization chain reaction.

Ultrasensitive ratiometric detection of Pb2+ using DNA tetrahedron-mediated hyperbranched hybridization chain reaction

2021 ◽  
Vol 1147 ◽  
pp. 170-177
Author(s):  
Pingping Ji ◽  
Guimei Han ◽  
Yan Huang ◽  
Hongxin Jiang ◽  
Qiwen Zhou ◽  
...  
Keyword(s):  
Hybridization Chain Reaction ◽  
Chain Reaction ◽  
Ratiometric Detection ◽  
Dna Tetrahedron

scholarly journals Spatiotemporally programmable cascade hybridization of hairpin DNA in polymeric nanoframework for precise siRNA delivery

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Feng Li ◽  
Wenting Yu ◽  
Jiaojiao Zhang ◽  
Yuhang Dong ◽  
Xiaohui Ding ◽  
...  
Keyword(s):  
Steric Effect ◽  
Sirna Delivery ◽  
Dna Nanotechnology ◽  
Hybridization Chain Reaction ◽  
Dna Nanostructures ◽  
Chain Reaction ◽  
Dna Hairpins ◽  
In Vivo Experiments ◽  
Dna And Rna

AbstractDNA nanostructures have been demonstrated as promising carriers for gene delivery. In the carrier design, spatiotemporally programmable assembly of DNA under nanoconfinement is important but has proven highly challenging due to the complexity–scalability–error of DNA. Herein, a DNA nanotechnology-based strategy via the cascade hybridization chain reaction (HCR) of DNA hairpins in polymeric nanoframework has been developed to achieve spatiotemporally programmable assembly of DNA under nanoconfinement for precise siRNA delivery. The nanoframework is prepared via precipitation polymerization with Acrydite-DNA as cross-linker. The potential energy stored in the loops of DNA hairpins can overcome the steric effect in the nanoframework, which can help initiate cascade HCR of DNA hairpins and achieve efficient siRNA loading. The designer tethering sequence between DNA and RNA guarantees a triphosadenine triggered siRNA release specifically in cellular cytoplasm. Nanoframework provides stability and ease of functionalization, which helps address the complexity–scalability–error of DNA. It is exemplified that the phenylboronate installation on nanoframework enhanced cellular uptake and smoothed the lysosomal escape. Cellular results show that the siRNA loaded nanoframework down-regulated the levels of relevant mRNA and protein. In vivo experiments show significant therapeutic efficacy of using siPLK1 loaded nanoframework to suppress tumor growth.

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