Antimicrobial Nanomaterials
Antimicrobial Nanomaterials - Related Videos
09:35
Dispersion of Nanomaterials in Aqueous Media: Towards Protocol Optimization
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Cited by 71 •
2017
Here, we present a step-wise protocol for the dispersion of nanomaterials in aqueous media with real-time characterization to identify the optimal sonication conditions, intensity, and duration for improved stability and uniformity of nanoparticle dispersions without impacting the sample integrity.
04:55
Testing of Nanoparticle Release from a Composite Containing Nanomaterial Using a Chamber System
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Cited by 4 •
2016
Nanoparticle release is tested using a chamber system that includes a condensation particle counter, an optical particle counter and sampling ports to collect filter samples for microscopy analysis. The proposed chamber system can be effectively used for nanomaterial release testing with a repeatable and consistent data range.
08:33
Functionalization and Dispersion of Carbon Nanomaterials Using an Environmentally Friendly Ultrasonicated Ozonolysis Process
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Cited by 11 •
2017
Here, a novel method for the functionalization and stable dispersion of carbon nanomaterials in aqueous environments is described. Ozone is injected directly into an aqueous dispersion of carbon nanomaterial that is continuously recirculated through a high-powered ultrasonic cell.
11:10
Expression, Purification, and Antimicrobial Activity of S100A12
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Cited by 14 •
2017
Here, we present a method to express and purify S100A12 (calgranulin C). We describe a protocol to measure its antimicrobial activity against the human pathogen H. pylori.
10:35
Production and Testing of Antimicrobial Peptides and Their Mimics
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2026
This protocol describes a method for producing and evaluating the antimicrobial activity and cytotoxicity of the cationic peptide Mel4 and peptide mimic RK758. By integrating chemical synthesis, recombinant expression, and standardized functional assays, it provides a streamlined workflow for the production and testing of peptides and small-molecule mimics.
FAQs
Some antimicrobial nanomaterials act when their nanoscale surfaces contact microbial membranes or cell walls. This interaction can interfere with the structures that maintain cellular integrity, contributing to microbial inhibition or death. In medical settings, that mechanism is relevant because it can operate at the material–microbe interface, such as where a wound dressing or implant coating meets contaminated tissue.
Reactive oxygen species provide a mechanism distinct from direct physical contact. These chemically reactive species can contribute to microbial damage and may affect intracellular processes after interacting with microorganisms. Their inclusion among the possible mechanisms helps explain why antimicrobial nanomaterials may inhibit or kill bacteria, viruses, and fungi through more than one type of biological interaction.
A nanoscale carrier can deliver an antimicrobial agent rather than relying only on the material’s direct activity. This approach connects the material’s nanoscale design with controlled placement of an antimicrobial payload in a medical application. The carrier concept is especially relevant to targeted therapies, where delivery is studied as part of efforts to address infections that are difficult to treat.
Medical research is examining antimicrobial nanomaterials in wound dressings, implant coatings, diagnostic platforms, and targeted therapies. These applications use the materials in different roles: protecting wound sites, modifying implant surfaces, supporting infection-related detection, or delivering treatment. Together, they show that the field extends beyond a single product type and connects materials research with several areas of infection control.
Their ability to act at microbial surfaces, generate reactive oxygen species, disrupt intracellular processes, or deliver antimicrobial agents may support efforts to reduce biofilms. This matters because biofilms are associated with infections that can be difficult to treat. Accordingly, antimicrobial nanomaterials are being studied for medical settings where limiting microbial communities could improve the usefulness of dressings, coatings, or therapies.
Implant coatings provide a medical surface where antimicrobial activity can be investigated directly. A coating may place the material at the interface between an implant and surrounding biological tissue, making surface-based microbial inhibition particularly relevant. Research in this area forms part of broader infection-control efforts and complements studies of wound dressings, diagnostics, and targeted antimicrobial therapies.