scholarly journals Gene assemblyviaone-pot chemical ligation of DNA promoted by DNA nanostructures

2018 ◽  
Vol 54 (36) ◽  
pp. 4529-4532 ◽  
Author(s):  
Ilenia Manuguerra ◽  
Stefano Croce ◽  
Afaf H. El-Sagheer ◽  
Abhichart Krissanaprasit ◽  
Tom Brown ◽  
...  

A gene was obtained from 14 oligonucleotides self-assembled and chemically ligated in a DNA nanostructure.

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Chensheng Zhou ◽  
Heng Luo ◽  
Xiaolu Feng ◽  
Xingwang Li ◽  
Jie Zhu ◽  
...  

DNA self-assembly is a nanotechnology that folds DNA into desired shapes. Self-assembled DNA nanostructures, also known as origami, are increasingly valuable in nanomaterial and biosensing applications. Two ways to use DNA nanostructures in medicine are to form nanoarrays, and to work as vehicles in drug delivery. The DNA nanostructures perform well as a biomaterial in these areas because they have spatially addressable and size controllable properties. However, manually designing complementary DNA sequences for self-assembly is a technically demanding and time consuming task, which makes it advantageous for computers to do this job instead. We have developed a web server, FOLDNA, which can automatically design 2D self-assembled DNA nanostructures according to custom pictures and scaffold sequences provided by the users. It is the first web server to provide an entirely automatic design of self-assembled DNA nanostructure, and it takes merely a second to generate comprehensive information for molecular experiments including: scaffold DNA pathways, staple DNA directions, and staple DNA sequences. This program could save as much as several hours in the designing step for each DNA nanostructure. We randomly selected some shapes and corresponding outputs from our server and validated its performance in molecular experiments.


2016 ◽  
Vol 52 (8) ◽  
pp. 1677-1680 ◽  
Author(s):  
S. P. Surwade ◽  
F. Zhou ◽  
Z. Li ◽  
A. Powell ◽  
C. O'Donnell ◽  
...  

We describe a method to pattern arbitrary-shaped silane self-assembled monolayers (SAMs) with nm scale resolution using DNA nanostructures as templates.


2021 ◽  
Author(s):  
Cai Shijun ◽  
Jiaoli Wang ◽  
Jing Li ◽  
Bing Zhou ◽  
Chunmei He ◽  
...  

Due to the incorporation of gold nanoparticles (AuNPs), the reported AuNP-based FRET nanoflares still have some problems, such as non-negligible cytotoxicity and time-consuming preparation procudure. In this communication, a novel...


Author(s):  
Matthew Chiriboga ◽  
Sebastian A. Diaz ◽  
Divita Mathur ◽  
David A. Hastman ◽  
Joseph S. Melinger ◽  
...  

The Analyst ◽  
2020 ◽  
Vol 145 (22) ◽  
pp. 7340-7348
Author(s):  
Huasong Bai ◽  
Shengjun Bu ◽  
Wensen Liu ◽  
Chengyu Wang ◽  
Zhongyi Li ◽  
...  

We developed an electrochemical aptasensor based on cocoon-like DNA nanostructures as signal tags for highly sensitive and selective detection of Escherichia coli O157:H7.


2020 ◽  
Vol 3 (5) ◽  
pp. 2779-2795 ◽  
Author(s):  
Jin Huang ◽  
Wenjie Ma ◽  
Huanhuan Sun ◽  
Huizhen Wang ◽  
Xiaoxiao He ◽  
...  

2019 ◽  
Vol 116 (15) ◽  
pp. 7543-7548 ◽  
Author(s):  
Huan Zhang ◽  
Gozde S. Demirer ◽  
Honglu Zhang ◽  
Tianzheng Ye ◽  
Natalie S. Goh ◽  
...  

Delivery of biomolecules to plants relies onAgrobacteriuminfection or biolistic particle delivery, the former of which is amenable only to DNA delivery. The difficulty in delivering functional biomolecules such as RNA to plant cells is due to the plant cell wall, which is absent in mammalian cells and poses the dominant physical barrier to biomolecule delivery in plants. DNA nanostructure-mediated biomolecule delivery is an effective strategy to deliver cargoes across the lipid bilayer of mammalian cells; however, nanoparticle-mediated delivery without external mechanical aid remains unexplored for biomolecule delivery across the cell wall in plants. Herein, we report a systematic assessment of different DNA nanostructures for their ability to internalize into cells of mature plants, deliver siRNAs, and effectively silence a constitutively expressed gene inNicotiana benthamianaleaves. We show that nanostructure internalization into plant cells and corresponding gene silencing efficiency depends on the DNA nanostructure size, shape, compactness, stiffness, and location of the siRNA attachment locus on the nanostructure. We further confirm that the internalization efficiency of DNA nanostructures correlates with their respective gene silencing efficiencies but that the endogenous gene silencing pathway depends on the siRNA attachment locus. Our work establishes the feasibility of biomolecule delivery to plants with DNA nanostructures and both details the design parameters of importance for plant cell internalization and also assesses the impact of DNA nanostructure geometry for gene silencing mechanisms.


Author(s):  
Kimberly N. Rendek ◽  
Raimund Fromme ◽  
Ingo Grotjohann ◽  
Petra Fromme

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