Related Experiment Video
Updated: Mar 20, 2026

Author Spotlight: Exploring the Antibacterial Effects of Zinc Oxide Nanoparticles in Overcoming Antibiotic Resistance
Published on: September 27, 2024
Countering drug resistance, infectious diseases, and sepsis using metal and metal oxides nanoparticles: Current
Shams Tabrez Khan1, Javed Musarrat2, Abdulaziz A Al-Khedhairy3
1Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; DNA Research Chair, Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
Abstract:
One fourth of the global mortalities is still caused by microbial infections largely due to the development of resistance against conventional antibiotics among pathogens, the resurgence of old infectious diseases and the emergence of hundreds of new infectious diseases. The lack of funds and resources for the discovery of new antibiotics necessitates the search for economic and effective alternative antimicrobial agents. Metal and metal oxide nanoparticles including silver and zinc oxide exhibit remarkable antimicrobial activities against pathogens and hence are one of the most propitious alternative antimicrobial agents. These engineered nanomaterials are approved by regulatory agencies such as USFDA and Korea's FITI, for use as antimicrobial agents, supplementary antimicrobials, food packaging, skin care products, oral hygiene, and for fortifying devices prone to microbial infections. Nevertheless, detailed studies, on molecular and biochemical mechanisms underlying their antimicrobial activity are missing. To take the full advantage of this emerging technology selective antimicrobial activity of these nanoparticles against pathogens should be studied. Optimization of these nanomaterials through functionalization to increase their efficacy and biocompatibility is also required. Urgent in vivo studies on the toxicity of nanomaterials at realistic doses are also needed before their clinical translation.
Insights
Metal and metal oxide nanoparticles show promise as antimicrobial agents due to rising antibiotic resistance. Further research is needed to understand their mechanisms and ensure safety for clinical use.
Area of Science:
- Materials Science
- Microbiology
- Nanotechnology
Background:
- Microbial infections cause significant global mortality, exacerbated by antibiotic resistance and emerging diseases.
- Conventional antibiotic discovery faces funding challenges, driving the need for alternative antimicrobial agents.
- Metal and metal oxide nanoparticles, like silver and zinc oxide, demonstrate potent antimicrobial properties.
Purpose of the Study:
- To highlight the potential of metal and metal oxide nanoparticles as alternative antimicrobial agents.
- To identify the need for further research into the molecular mechanisms of nanoparticle antimicrobial activity.
- To emphasize the necessity of optimizing nanoparticles for enhanced efficacy and biocompatibility.
Main Methods:
- Review of existing literature on metal and metal oxide nanoparticles as antimicrobials.
- Analysis of regulatory approvals and applications of these nanomaterials.
- Identification of research gaps in understanding antimicrobial mechanisms and in vivo toxicity.
Main Results:
- Metal and metal oxide nanoparticles exhibit significant antimicrobial activity against various pathogens.
- These nanomaterials are approved for diverse applications, including antimicrobial uses and product fortification.
- Detailed studies on molecular mechanisms and selective toxicity are currently lacking.
Conclusions:
- Metal and metal oxide nanoparticles represent a promising alternative to conventional antibiotics.
- Further investigation into selective antimicrobial activity and optimization is crucial for maximizing their potential.
- In vivo toxicity studies at realistic doses are essential before clinical translation.
Related Concept Videos
Microbial Corrosion
Clinical Significance of Antibiotic Resistance
Mechanism of Antibiotic Resistance in MRSA
Antimicrobial Proteins
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
Combined Effects of Drugs: Synergism
Such synergistic combinations...
Development of Antibiotic Resistance

