Nanoparticles in Antibacterial Treatments
Nanoparticle antibacterial treatments offers exciting possibilities, including the ability for using nanoparticles to:
- treat antibiotic resistant infections
- treat staph infections
- release antibiotics when a infection starts in a wound
The next section provides examples of the different types of ongoing research into the use of nanotechnology in antibacterial treatments
Nanotechnology-based Antibacterial Treatments: Applications under Development
Reserachers at Rice University are developing
nanoscale drills to kill
antibiotic resistant bacteria.
Researchers at the University of Houston are developing a technique to
kill bacteria using gold
nanoparticles and infrared light. This method may lead to improved
cleaning of instruments in hospital settings.
Researchers at the University of Colorado Boulder are investigating the
quantum dots to treat antibiotic resistant infections.
Researchers at the University of New South Wales are investigating the use of
polymer coated iron oxide
nanoparticles to treat chronic bacterial infections.
One of the earliest nanomedicine applications was the use of
nanocrystalline silver which is as an antimicrobial agent for the
treatment of wounds, as discussed on the
Pharmaceuticals Corporation website.
A nanoparticle cream has been shown to fight staph infections. The
contain nitric oxide gas, which is known to kill bacteria. Studies
on mice have shown that using the nanoparticle cream to release nitric
oxide gas at the site of staph abscesses significantly reduced the
Burn dressing that is coated with
antibotics. If a infection starts the harmful bacteria in the wound causes
the nanocapsules to break open, releasing the antibotics. This allows much
quicker treatment of an infection and reduces the number of times a dressing has
to be changed.
A welcome idea in the early study stages is the
elimination of bacterial infections in a patient within minutes,
instead of delivering treatment with antibiotics over a period of weeks.
You can read about design analysis for the antimicrobial nanorobot used in such
treatments in the following article:
Mechanical Phagocytes using Digest and Discharge Protocol.