Related Experiment Video
Updated: Jun 13, 2026
09:09
Synthesis of Aptamer-PEI-g-PEG Modified Gold Nanoparticles Loaded with Doxorubicin for Targeted Drug Delivery
Published on: June 23, 2020
A functionalized gold nanoparticles-assisted universal carrier for antisense DNA.
Jae-Hong Kim1, Hyun Hye Jang, Sang-Mi Ryou
1Graduate School of Life Science and Biotechnology, CHA University, Seongnam 463-836, Republic of Korea.
Chemical Communications (Cambridge, England)
|May 11, 2010
Summary
Single-stranded DNA functionalized gold nanoparticles effectively deliver antisense DNA for gene targeting. This novel gene delivery system shows efficiency without impacting normal cell function.
Area of Science:
- Nanotechnology
- Molecular Biology
- Gene Therapy
Background:
- Gene delivery systems are crucial for therapeutic applications.
- Antisense oligonucleotides offer targeted gene regulation.
- Developing safe and efficient delivery vectors remains a challenge.
Purpose of the Study:
- To evaluate single-stranded DNA functionalized gold nanoparticles (AuNP GDS) as a gene delivery system.
- To assess the efficiency of AuNP GDS for delivering antisense oligonucleotides.
- To determine if AuNP GDS affects normal cell physiology.
Main Methods:
- Synthesis and functionalization of gold nanoparticles with single-stranded DNA.
- Complexation of antisense oligonucleotides with AuNP GDS.
- In vitro assessment of gene delivery efficiency.
- Cellular assays to evaluate the impact on normal cell physiology.
Main Results:
- AuNP GDS demonstrated efficient delivery of antisense oligonucleotides.
- Targeted gene silencing was achieved using AuNP GDS.
- No adverse effects on normal cell physiology were observed.
Conclusions:
- Single-stranded DNA functionalized gold nanoparticles are effective and safe gene delivery vectors.
- AuNP GDS represents a promising platform for antisense DNA-based gene therapy.
- This approach offers a versatile method for targeting specific genes without cellular toxicity.
More Related Videos
Related Concept Videos
02:30siRNA - Small Interfering RNAs
Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the ATP-dependent...
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the ATP-dependent...
01:24Site-Targeted Drug Delivery Systems: Polymeric Carriers
Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...