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Updated: Jun 13, 2026
08:30
Gene-therapy Inspired Polycation Coating for Protection of DNA Origami Nanostructures
Published on: January 19, 2019
Using graphene to protect DNA from cleavage during cellular delivery
Chun-Hua Lu1, Chun-Ling Zhu, Juan Li
1The Key Lab of Analysis and Detection Technology for Food Safety of the MOE, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, PR China.
Chemical Communications (Cambridge, England)
|April 29, 2010
Summary
Functionalized nanoscale graphene oxide shields oligonucleotides from degradation and facilitates their cellular delivery. This breakthrough enhances oligonucleotide stability and intracellular uptake for therapeutic applications.
Area of Science:
- Biotechnology
- Nanomedicine
- Molecular Biology
Background:
- Oligonucleotides are valuable therapeutic agents but are susceptible to enzymatic degradation.
- Efficient delivery of oligonucleotides into target cells remains a significant challenge in their application.
Purpose of the Study:
- To investigate the potential of functionalized nanoscale graphene oxide as a protective carrier for oligonucleotides.
- To evaluate the efficacy of this system in preventing enzymatic cleavage and facilitating cellular uptake of oligonucleotides.
Main Methods:
- Synthesis and functionalization of nanoscale graphene oxide.
- Incubation of oligonucleotides with functionalized nanoscale graphene oxide.
- Assessment of enzymatic cleavage resistance using nucleases.
- Cellular delivery studies using cell culture models and fluorescence microscopy.
Main Results:
- Functionalized nanoscale graphene oxide demonstrated significant protection of oligonucleotides against enzymatic degradation.
- Efficient delivery of oligonucleotides into cells was achieved using the functionalized graphene oxide carrier.
- Cellular uptake correlated with the protective effect offered by the graphene oxide nanoparticles.
Conclusions:
- Functionalized nanoscale graphene oxide serves as an effective protective agent for oligonucleotides, preventing enzymatic cleavage.
- This nanocarrier system facilitates efficient intracellular delivery of oligonucleotides, opening avenues for novel nucleic acid-based therapies.
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