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Antimicrobial Proteins

Antimicrobial Proteins

Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
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Related Experiment Video

Updated: Oct 27, 2025

Evaluation of Antimicrobial Activities of Nanoparticles and Nanostructured Surfaces In Vitro

Evaluation of Antimicrobial Activities of Nanoparticles and Nanostructured Surfaces In Vitro

Published on: April 21, 2023

Silver Nanoparticles and Their Antibacterial Applications.

Tamara Bruna¹, Francisca Maldonado-Bravo^1,2, Paul Jara²

¹Centro de Investigación Austral Biotech, Facultad de Ciencias, Universidad Santo Tomás, Avenida Ejército 146, Santiago 8320000, Chile.

International Journal of Molecular Sciences

|July 20, 2021

Summary

Silver nanoparticles (AgNPs) show strong antimicrobial properties against various bacteria, including resistant strains. Combining AgNPs with antibiotics enhances their effectiveness and reduces necessary dosages.

Keywords:

antibacterial activity antibiotic alternative cytotoxicity medical applications silver nanoparticles

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Synthesis of Multi-walled Carbon Nanotubes Modified with Silver Nanoparticles and Evaluation of Their Antibacterial Activities and Cytotoxic Properties

Synthesis of Multi-walled Carbon Nanotubes Modified with Silver Nanoparticles and Evaluation of Their Antibacterial Activities and Cytotoxic Properties

Published on: May 10, 2018

Area of Science:

Nanotechnology
Microbiology
Materials Science

Background:

Silver nanoparticles (AgNPs) are recognized for their potent antimicrobial capabilities.
AgNPs effectively combat both Gram-negative and Gram-positive bacteria, including multidrug-resistant strains.
Multiple, simultaneous mechanisms of action contribute to AgNP efficacy.

Purpose of the Study:

To review factors influencing the antibacterial and cytotoxic effects of AgNPs.
To highlight the advantages of using AgNPs in combination with conventional antibiotics.
To address the urgent need for novel antibacterial agents.

Main Methods:

Literature review of studies on silver nanoparticles' antimicrobial and cytotoxic effects.
Analysis of synergistic interactions between AgNPs and antibiotics.
Examination of AgNP application in medical and healthcare products.

Main Results:

AgNPs demonstrate broad-spectrum antibacterial activity.
Synergistic effects observed when AgNPs are combined with antibiotics against pathogens like Escherichia coli and Staphylococcus aureus.
AgNPs offer potential for reducing antibiotic dosage and mitigating side effects.

Conclusions:

Silver nanoparticles are promising agents for combating bacterial infections.
Combination therapy with AgNPs and antibiotics presents a viable strategy for enhanced treatment.
Further research into AgNP properties is crucial for optimizing their clinical application.