Related Experiment Video
Updated: Oct 16, 2025

Demonstration of the DNA Fiber Assay for Investigating DNA Damage and Repair Dynamics Induced by Nanoparticles
Published on: March 3, 2023
Genotoxic Potential of Nanoparticles: Structural and Functional Modifications in DNA
Ritesh K Shukla1, Ashish Badiye2, Kamayani Vajpayee1
1Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Ahmedabad, India.
Nanoparticles can enter cells and interact with DNA, potentially causing damage and health issues. This study investigates the genotoxic mechanisms of nanoparticles, focusing on DNA modifications.
Area of Science:
- Nanotechnology and Molecular Biology
- Genotoxicity and Environmental Health
Background:
- Nanotechnology advancements lead to increased nanoparticle production and applications.
- Widespread use of nanoparticles raises concerns about human exposure and potential health risks.
- Cellular processes involving DNA and RNA are crucial for maintaining cell structure and function.
Purpose of the Study:
- To elucidate the genotoxic mechanisms of nanoparticles.
- To investigate how nanoparticles induce structural and functional modifications in DNA.
Main Methods:
- Studying nanoparticle uptake by cellular systems.
- Analyzing nanoparticle interactions with DNA, including DNA damage and methylation.
- Evaluating the impact of these modifications on cellular processes.
Main Results:
- Nanoparticles are readily taken up by cells due to their small size.
- Cellular uptake of nanoparticles leads to interactions with DNA.
- These interactions can result in DNA damage, repair, and methylation, affecting cellular functions.
Conclusions:
- Nanoparticle exposure can lead to genotoxicity through DNA damage and modification.
- Understanding these mechanisms is crucial for assessing the health risks associated with nanoparticles.
- Further research is needed to fully elucidate the genotoxic potential of various nanoparticles.
More Related Videos
12:15Quantification of three DNA Lesions by Mass Spectrometry and Assessment of Their Levels in Tissues of Mice Exposed to Ambient Fine Particulate Matter
Published on: May 29, 2019
08:25Advanced 3D Liver Models for In vitro Genotoxicity Testing Following Long-Term Nanomaterial Exposure
Published on: June 5, 2020
Related Concept Videos
Mutagenicity and Carcinogenicity
Spontaneous and Induced Mutations
Nucleotide Excision Repair
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
Overview of DNA Repair
Chemically...
Mutations
Chromosomal Alterations Are Large-Scale Mutations
While point mutations are changes in a single nucleotide in...
Nucleosome Remodeling
Nucleosome remodeling complex
Eukaryotic cells have specialized enzymes called ATP-dependent nucleosome remodeling enzymes. These enzymes...