Related Experiment Video
Updated: Jun 11, 2025
Rapid Mix Preparation of Bioinspired Nanoscale Hydroxyapatite for Biomedical Applications
Published on: February 23, 2017
Bactericidal behavior of silver nanoparticle decorated nano-sized magnetic hydroxyapatite
Ebrahim Sadeghi1, Reza Taghavi2, Amir Hasanzadeh1
1Cellular and Molecular Research Center, Cellular and Molecular Medicine Research Institute, Urmia University of Medical Sciences Urmia 57157-89400 Iran hasanzadeh.a@umsu.ac.ir.
Abstract:
Methicillin-resistant Staphylococcus aureus (MRSA) is the most common cause of acute bacterial arthritis. Due to the increase in antibiotic resistance in these bacteria, the discovery of new antibacterial agents has become one of the hot topics in the scientific community. Here, we prepared a nano-sized porous biocompatible magnetic hydroxyapatite through a solvothermal method. Then, we adopted a post-synthesis modification strategy to modify its surface for the stabilization of Ag NPs through a green reduction by the euphorbia plant extract. Moreover, the results show that the prepared composite perfectly prevents the aggregation of Ag NPs. This composite was used as a bactericidal and antibiofilm agent against MRSA bacteria in an in vitro environment, which showed excellent results. Also, the cell viability assay indicates that the prepared composite has low cytotoxicity, making it a perfect antibacterial agent for in vivo experiments.
Insights
A novel magnetic hydroxyapatite composite with silver nanoparticles effectively combats antibiotic-resistant MRSA bacteria. This biocompatible material shows low cytotoxicity, indicating potential for treating bacterial infections.
Area of Science:
- Materials Science
- Nanotechnology
- Biomedical Engineering
Background:
- Methicillin-resistant Staphylococcus aureus (MRSA) is a leading cause of bacterial arthritis.
- Increasing antibiotic resistance necessitates novel antibacterial strategies.
- Developing safe and effective antimicrobial agents is a critical scientific challenge.
Purpose of the Study:
- To synthesize and characterize a novel nano-sized porous magnetic hydroxyapatite composite.
- To functionalize the composite surface with silver nanoparticles (Ag NPs) using a green synthesis method.
- To evaluate the efficacy of the composite as a bactericidal and antibiofilm agent against MRSA.
Main Methods:
- Solvothermal synthesis of magnetic hydroxyapatite nanoparticles.
- Post-synthesis surface modification for Ag NP stabilization using Euphorbia plant extract.
- In vitro evaluation of bactericidal and antibiofilm activity against MRSA.
- In vitro cytotoxicity assessment using cell viability assays.
Main Results:
- The synthesized composite demonstrated effective prevention of Ag NP aggregation.
- The composite exhibited excellent bactericidal and antibiofilm efficacy against MRSA in vitro.
- Cell viability assays confirmed low cytotoxicity of the prepared composite.
Conclusions:
- The developed magnetic hydroxyapatite/Ag NP composite is a promising biocompatible agent against MRSA.
- The material's low cytotoxicity suggests potential for in vivo applications.
- This study offers a novel approach for developing advanced antibacterial materials to combat resistant pathogens.
