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Related Concept Videos

The DNA Helix01:07

The DNA Helix

Deoxyribonucleic acid, or DNA, is the genetic material responsible for passing traits from generation to generation in all organisms and most viruses. DNA is composed of two strands of nucleotides that wind around each other to form a spring-like structure called a double helix. However, the double helix is not perfectly symmetrical. Instead, there are regularly occurring grooves in the structure. The major groove occurs where the sugar-phosphate backbones are relatively far apart. This space...
The DNA Helix01:16

The DNA Helix

Overview
Next-generation Sequencing03:00

Next-generation Sequencing

The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features.
Nucleic Acid Structure01:25

Nucleic Acid Structure

The pentose sugar in DNA is deoxyribose, while in RNA the pentose sugar is ribose. The difference between the sugars is the presence of the hydroxyl group on the ribose's second carbon and a hydrogen on the deoxyribose's second carbon. The phosphate residue attaches to the hydroxyl group of the 5′ carbon of one sugar and the hydroxyl group of the 3′ carbon of the sugar of the next nucleotide, which forms  a 5′ to 3′ phosphodiester linkage.
DNA Structure
DNA has a double-helix structure. The...

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DNAzyme 10-23 - Based Nanomachines for Nucleic Acid Recognition
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Challenges and opportunities for structural DNA nanotechnology.

Andre V Pinheiro1, Dongran Han, William M Shih

  • 1Center for Single Molecule Biophysics, The Biodesign Institute, Arizona State University, Tempe, USA.

Nature Nanotechnology
|November 8, 2011
PubMed
Summary

Structural DNA nanotechnology offers exciting applications, but high costs and self-assembly errors hinder progress. Overcoming these challenges could unlock advancements in biophysics, biomimicry, photonics, and medicine.

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Area of Science:

  • Biotechnology
  • Nanotechnology
  • Molecular Engineering

Background:

  • DNA molecules have been utilized for nanoscale construction for three decades.
  • Emerging applications show promise, but significant technical hurdles remain.

Purpose of the Study:

  • To examine technical challenges in structural DNA nanotechnology.
  • To outline promising applications that could be realized upon overcoming these challenges.

Main Methods:

  • Review and analysis of current technical challenges in DNA nanotechnology.
  • Exploration of potential applications based on overcoming identified hurdles.

Main Results:

  • Key challenges identified: high cost of DNA and high error rate in self-assembly.
  • Promising application areas include molecular/cellular biophysics, biomimetic systems, energy transfer/photonics, and diagnostics/therapeutics.

Conclusions:

  • Addressing cost and self-assembly errors is crucial for advancing DNA nanotechnology.
  • Successful development could lead to significant breakthroughs in diverse scientific and medical fields.