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Updated: Oct 1, 2025

Evaluation of Antimicrobial Activities of Nanoparticles and Nanostructured Surfaces In Vitro
Published on: April 21, 2023
Targeting foodborne pathogens via surface-functionalized nano-antimicrobials.
Akbar Bahrami1, Rana Delshadi2, Ilaria Cacciotti3
1Center for Excellence in Post-Harvest Technologies, North Carolina Agricultural and Technical State University, North Carolina Research Campus, Kannapolis, NC 28081, USA.
Functional nanoparticles enhance antimicrobial delivery against foodborne pathogens by overcoming bacterial defenses and improving targeted delivery. Surface modification of nanocarriers boosts their efficacy and circulation time for better therapeutic outcomes.
Area of Science:
- Nanotechnology
- Antimicrobial Agents
- Foodborne Pathogens
- Drug Delivery Systems
Background:
- Antimicrobial nanocarriers are developed using non-toxic nanoparticles loaded with antibiotics or bioactive compounds to combat foodborne pathogens.
- Challenges include bacterial intracellular localization and persistence within phagocytic cells, limiting conventional antimicrobial efficacy.
- Nanocarrier systems offer protection, controlled release, and enhanced activity but face barriers to optimal function.
Purpose of the Study:
- To review techniques for surface functionalization of antimicrobial-loaded nanocarriers.
- To explore the potential of functional nanoparticles in enhancing antimicrobial performance against foodborne pathogens.
- To highlight strategies for overcoming barriers like intracellular bacterial infections and improving targeted delivery.
Main Methods:
- Review of scientific literature on nanocarrier surface modification techniques.
- Analysis of passive and active modification methods for nanocarrier functionalization.
- Examination of functional agents including peptides, ligands, antibodies, and enzymes for targeted delivery.
Main Results:
- Surface functionalization protects nanocarriers from rapid clearance, extending circulation time.
- Targeted delivery strategies significantly increase nanocarrier uptake by host cells.
- Functionalized nanocarriers demonstrate improved efficacy against intracellular and persistent foodborne pathogens.
Conclusions:
- Surface functionalization is a key strategy to enhance the performance of antimicrobial nanocarriers.
- Targeted delivery via functionalized nanoparticles offers a promising approach to combat challenging foodborne pathogens.
- Further research into advanced functionalization techniques can optimize nanocarrier-based antimicrobial therapies.
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