Nanotechnology in healthcare

Nanotechnology in healthcare

HideShow resource information
  • Created by: pp
  • Created on: 21-05-11 14:19
Preview of Nanotechnology in healthcare

First 580 words of the document:

Methods of Detecting and Testing for Diseases
`Detecting disease early gives doctors a better chance of curing Cosmetic and beauty companies are using this tiny technology
it. Nanotechnology is helping scientists develop sensors that can to big effect. `Skin scientists have designed nano-sized
identify the molecules that warn of disease in your body and 'containers' that can carry a product's active ingredients deep
instantly feedback this information to your doctor.' An into your skin, where they work most effectively.' They have
instrument that will help doctors to immediately get results from used this idea in order to create a barrier of protection against
various tests carried out. Nano-sized molecules in the strip in the sun's harsh rays. Some sunscreens now contain zinc oxide
the top of the instrument detect the levels of five danger or titanium oxide nanoparticles, which unlike larger particles,
substances. A specialised pill, called the Lab-on-a-pill, is the size they don't give you that chalky look. This make the sunscreen
of an aspirin and can run up for 40 hours. During this time the less visible on the skin which is a benefit for making cosmetics
pill will be able to detect the presence of certain chemicals, however there are some risks which ware still being
which could be the markers for a certain disease. Research is researched. Some studies suggest that there is no risk factor
being undertaken in order to be able to invent a sensor that unless the nanoparticles penetrate deeply in to the skin and
could be implanted into your body and information could be reach the living cells.
sent to a doctor, perhaps using a mobile phone or the Internet.
Drugs that can get to a Specific Target in the Body
Medicine is being developed so that they can home in on exactly the right part of your body before releasing the correct dose of drugs. By delivering the
drug right to the target site, this will reduce the amount of unwanted side effects that the drug could cause to other parts of the body. More toxic
substances could therefore be used as the drug would only be released at the target site and won't harm any other part of the body. The drug is contained
in a nanocapsule, which are small in size and are unreactive, therefore can move freely through the body. These nanocapsules are directed to the right spot
by chemical receptors on their surface that recognise damaged cells. They release their drugs when they come across a specific trigger molecule. The
capsules could be made from nano-porous material, which have nanopores. By making the nanopores only slightly larger than the drug molecules, you can
make sure only one molecule escapes at a time. This means the drug is released at a constant rate. Nano-sized magnetic particles are also beneficial to the
health. These tiny magnets can be attached to the drug or gene and pulled to the target site using a magnetic field outside the body. These nanomagnets
could be used on their own to treat cancer. Once directed to the target area the doctor can use a magnetic field to heat up the mini magnets. The heat they
release burns the tumour away but leaves the surrounding healthy cells intact.


No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all resources »