Antimicrobial Surface Modification
Antimicrobial Surface Modification - Related Videos
11:52
Evaluation of Antimicrobial Activities of Nanoparticles and Nanostructured Surfaces In Vitro
0 Views •
Cited by 1 •
2023
We introduce four methods to evaluate the antimicrobial activities of nanoparticles and nanostructured surfaces using in vitro techniques. These methods can be adapted to study the interactions of different nanoparticles and nanostructured surfaces with a broad range of microbial species.
14:48
PDMS Device Fabrication and Surface Modification
0 Views •
Cited by 5 •
2007
12:31
Chemoselective Modification of Viral Surfaces via Bioorthogonal Click Chemistry
0 Views •
Cited by 14 •
2012
Adenovirus particles are engineered to contain either the unnatural amino acid analogue azidohomoalanine or the azido sugar O-GlcNAz. The azide group of each is chemoselectively ligated via "click" chemistry reactions as a means of viral surface modification.
10:54
Enzymatic Modification and Flow Cytometry Assessment of Yeast Surface Displayed Proteins
0 Views •
2025
Here, we introduce a protocol for using yeast surface-displayed substrates for enzymatic modification assays. The platform was demonstrated using the analysis of the dephosphorylation activity of tyrosine phosphatase SHP-2 against one of its substrates as a representative enzymatic modification assay.
09:59
Application of the Intelligent High-Throughput Antimicrobial Sensitivity Testing/Phage Screening System and Lar Index of Antimicrobial Resistance
0 Views •
Cited by 1 •
2023
Here we introduce the principle, structure, and instruction of the intelligent high-throughput antimicrobial sensitivity testing/phage screening system. Its application is illustrated by using Salmonella isolated from poultry in Shandong, China, as an example. The Lar index is calculated, and its significance in evaluating antimicrobial resistance is discussed comprehensively.
FAQs
These approaches act at different stages of microbial colonization. Contact-killing surfaces act when microorganisms touch the modified layer, whereas controlled-release designs deliver antimicrobial agents from the surface over time. Biofilm-preventing strategies focus on limiting the development of organized microbial communities. Selecting among them depends on the intended duration and mode of protection for the bioengineering device.
A surface can reduce microbial survival yet remain unsuitable if it harms host cells or loses structural integrity. Antimicrobial surface modification therefore requires simultaneous attention to low toxicity, compatibility with host cells, and mechanical stability. This balance is especially important for implanted or tissue-contacting devices, where antimicrobial performance must support rather than compromise the device’s biological function.
The outer layer of a material affects whether microorganisms attach, persist, or grow, while also influencing how the material interacts with surrounding biological tissues. In bioengineering, modifying that layer can reduce opportunities for colonization without changing the entire device. The resulting surface must retain useful mechanical behavior and remain compatible with host cells during use.
Three supported routes are coatings, chemical grafting, and incorporation of antimicrobial agents. A coating adds an engineered outer layer, chemical grafting modifies the surface through attached chemical groups, and incorporation places antimicrobial components within the material system. The selected route should match the intended contact-killing, controlled-release, or biofilm-prevention function and the required mechanical stability.
Applications include implants, catheters, wound dressings, tissue-engineering scaffolds, and diagnostic devices. These platforms differ in their contact with tissues, fluids, or external environments, but each can be affected by microbial attachment and growth. Surface modification provides a way to address contamination or device-associated infection while preserving the broader requirements of biocompatibility and functional performance.
Assessment should consider whether the modified surface reduces microbial attachment, survival, or growth, and whether that activity remains durable. Researchers must also examine toxicity, mechanical stability, and compatibility with host cells. Considering these outcomes together helps distinguish a surface that is merely antimicrobial from one that is suitable for practical bioengineering applications such as implants or scaffolds.