Related Experiment Video
Updated: Jun 24, 2025

16:24
Analyzing and Building Nucleic Acid Structures with 3DNA
Published on: April 26, 2013
20.5K
From Structure to Application: The Evolutionary Trajectory of Spherical Nucleic Acids.
Guijia Wang1,2, Sanyang Han3, Yuan Lu1,2
1Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China.
Small (Weinheim an Der Bergstrasse, Germany)
|June 11, 2024
Summary
Spherical nucleic acids (SNAs) offer advanced nucleic acid delivery with benefits like reagent independence and nuclease resistance. These versatile nanostructures show promise in medicine and materials science despite design challenges.
Area of Science:
- Nanotechnology
- Biochemistry
- Materials Science
Background:
- Spherical nucleic acids (SNAs) emerged in 1996 as a novel nanostructure.
- SNAs offer advantages over traditional DNA nanostructures, including reagent-free delivery, nuclease resistance, and reduced immunogenicity.
Purpose of the Study:
- To review the advances and applications of spherical nucleic acids (SNAs).
- To highlight the potential of SNAs in various scientific and clinical fields.
Main Methods:
- Review of existing literature on spherical nucleic acid (SNA) research.
- Analysis of SNA properties, including structure, function, and applications.
Main Results:
- SNAs utilize diverse core materials and nucleic acid conjugations for varied functionalities.
- Applications span immunomodulation, gene regulation, drug delivery, biosensing, and bioimaging.
- Despite challenges like design strategies and potential cytotoxicity, SNAs demonstrate significant promise.
Conclusions:
- Spherical nucleic acids (SNAs) represent a promising platform for developing new materials and therapeutic strategies.
- Further research into rational design and safety is warranted to fully realize SNA potential in clinical practice and pharmacy.
Related Concept Videos
Nucleic Acid Structure
6.1K
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...
DNA Structure
DNA...
6.1K
RNA Structure
4.8K
The basic structure of RNA consists of a string of ribonucleotides attached by phosphodiester bonds. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA) involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three...
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA) involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three...
4.8K
Bacterial RNA Polymerase
29.4K
Unlike eukaryotes, bacteria use a single RNA Polymerase (RNAP) to transcribe all genes. The different subunits of bacterial RNAPhave distinct functions. The multisubunit structure of the bacterial RNAP helps the enzyme to maintain catalytic function, facilitate assembly, interact with DNA and RNA, and self-regulate its activity.
In most genes, the transcription site is a single base present upstream of the coding sequence. Though RNAP is a catalytically efficient enzyme, it does not recognize...
In most genes, the transcription site is a single base present upstream of the coding sequence. Though RNAP is a catalytically efficient enzyme, it does not recognize...
29.4K
Conservation of Protein Domains Over Different Proteins
10.8K
Protein domains are small structurally independent units that are part of a single amino acid chain. Although these domains are often structurally independent, they may rely on synergistic effects to perform their functions as part of a larger protein. Protein domains may be conserved within the same organism, as well as across different organisms.
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to...
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to...
10.8K
Nucleic acids
161.7K
Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes,...
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes,...
161.7K
The DNA Helix
20.5K
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...
20.5K

