Nanocoatings is a process during which nanostructures are applied to surfaces for the purpose of sealing
The term nanocoating refers to
nanoscale (i.e. thin-films with a thickness of a few tens to hundreds of
nanometers) thin-films that are applied to surfaces to create or improve
functionalities such as corrosion protection, water and ice protection,
friction reduction, antifouling and antibacterial properties, self-cleaning,
heat and radiation resistance, and thermal management.
Because nanocoatings
provide significant benefits for applications in the aerospace, defence,
medical, marine, and oil industries, manufacturers are increasingly
incorporating multi-functional coatings into their products.
A surface is more than just a
physical barrier between an object and its surroundings; it serves a variety of
functions that are frequently critical in product design. Surfaces should feel
good to the touch, look good for as long as possible, be easy to maintain, and
not be ruined by dirt, water stains, or fingermarks.
Traditional coating materials
frequently fail to meet the increased demands placed on materials today.
However, advances have been made in recent years using methods attributed to
nanotechnology.
Developing antibiotic-resistant
bacteria-fighting strategies is a major application area for nanocoatings.
For example, researchers have coated nanoparticles with antibiotics. The
resulting nanopharmaceutical acts only on pathogens and is inert to the
organism due to chemical affinity.
In another proof-of-concept study
with mice, researchers demonstrated that a novel coating made with
antibiotic-releasing nanofibers has the potential to prevent at least some
serious bacterial infections associated with total joint replacement surgery.
Researchers have also
demonstrated that anti-adhesive nanofilm patches made from naturally occurring
biomaterials can prevent the formation of destructive bacterial biofilm on
metal surfaces when immersed in water or other damp environments.
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