Nanomedicine

NANOMEDICINE in present century is the potentsupplements.
output of nanotechnology. It could changes the pathThe traditional system of drug delivery loss drugs
of doctors to treat various life threaten diseases.from the body by means of water. Applying nanofilm
Nanomedicine could increases effectiveness andcoated with multiple drugs may be an effective
reduces side effects unlike the other painful therapy.approach for delivering drugs locally for longer
The basic principles of this technique are based onduration. This technique would eliminate unrequited
targeted drug delivery using nanoparticles, propersurgeries.
diagnosis using sensors and micro electro mechanicalE.g. the dexamethasone coated nanoscaled polymer
system (MEMS) and to monitor in vivo biochemicalfilm when implanted in mice; it suppresses the
activities. Nanotechnology has provided the differentcytokines of immune system. This could allow the
important tools (nanomedicine) like nanoshells,successful skin grafting. Silver, for a long time is
nanomachines, nanobiosensors, nanofilms,known for its potent antimicrobial activities. It
nanocapsules and nanotubes for improvement ofcontrols microbial infection. It is reported to improve
human health.wound healing & is non toxic to human tissue. Based
Nanoshell is made up of inner core of glass andon these properties, nanocrystalline silver films coated
coated with gold shell. It is 1000 times less than thewith silver particles (average size 15 nm) have been
actual size of human hair. Nanoshells are used in thedeveloped. These stripes could be directly applied on
treatment of solid tumors. After injecting thethe wounds. After contact with water, these stripes
nanoshells deeply in the tumor, a dose of infra redrelease silver particles in the form of silver radicals
radiations in the targeted area is given for 10-30that penetrates in the wounded area to improve
seconds. Nanoshell here performs dual role, eitherhealing.
acts like scalpel or get heated by IR radiations to killScientist have shown for the first time that carbon
the cancerous cells. It is the work of Jennifer andnanotubes make an ideal scaffold for the growth of
Naomi halas at Rice University. Nanoshell avoids thebone tissue because it has high mechanical strength,
unpleasant side effect of chemotherapy. Theexcellent flexibility and low density. It also mimics the
nanomachine can be also called as LAB ON CHIP thatrole of collagen (the natural composite of bone) as a
continuously monitors the level of biochemicals in thescaffold for the growth of hydroxyapatite in bone.
bloodstream and in response would releaseThus heal bone fracture, simply by injecting
appropriate drugs. E.g. such device monitors andnanotubes solution to the fractured area.
adjusts the insulin level in insulin dependent diabetes.Nanotechnology has wide applications in different
The nanobiosensors & MEMS are used for pathogenscientific areas. However, there is the need of public
and contamination detection. Person facing theawareness about the advantages, challenges and
problems of vitamin and nutrient deficiency couldfuture of nanotechnology in medicine and other
overcome by nanocapsule enriched with specificdisciplines.