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What are nanoparticles, and how are they used?
The use of ceramic coatings in solar cells, scratchproof eyeglasses (and other products) is increasing.
What are the components of a nanoparticle?
Nanoparticles or ultrafine particles are defined as a matter particle that has a diameter of between 1 and 10 nanometres. The term is also used for fibers or tubes with a diameter of less than 100nm.
What is the effect of nanoparticles in the body on health?
Inhaled aerosols can cause serious health effects
Inflammation of the lungs and heart problems are possible. Human studies show that breathing soot triggers a generalized inflammatory response, and changes the system which regulates involuntary cardiovascular functions such as heart rate control.
What are examples nanoparticles of?
Also, nanoparticles may be classified as either hard (e.g. titania [titanium dioxide], silica particles [silica oxide] and fullerenes), or soft (e.g. liposomes vesicles and nanodroplets).
Some of the most common food products that contain nanotechnology are candies (M&M’s and Skittles), plastic containers, and baby bottles.
Nanomaterials also have many applications in medicine and bioengineering.Targeting drugs with nanometer magnetic materials as drug carriers have been successfully developed, which are called “biological missiles”.In other words, drugs are carried on the protein surface coated by magnetic Fe3O4 nanoparticles, injected into human blood vessels, and delivered to the lesion site through magnetic navigation to release drugs, which can reduce the side effects caused by drugs in the liver, spleen, kidney, etc.The information of various biochemical reactions and electrochemical information can be obtained by using nanosensors.Nanoparticles can be used as a nano robot, into the person’s blood, to human body health checks, dredge in cerebral thrombosis, remove fat deposits in the heart arteries, viruses, and even can eat kill cancer cells, etc., can be predicted that with the development of the preparation of nanometer materials technology development and function, there will be more and more new nano material has been widely used in many high-tech fields.
The growth of gold nanoparticles within tumors can help fight cancer
In many studies, gold has shown to be a promising tool in the fight against Cancer. Researchers have developed a method to grow gold nanoparticles within cancer cells. They can aid in imaging, and they can even be heated to kill the tumours.
In the past, gold nanostars and nanotubes were used to battle cancer. However, one of the major challenges was getting the nanoparticles inside the tumors. They can be equipped with peptides which hunt down the cancer or they can sneak inside by attaching themselves to white blood cell.
Researchers found that they could grow gold inside cancer cells. This method is quicker and doesn’t need as much gold.
The team used PEG as a vehicle for ionic Gold, which is basically gold salts dispersed in a liquid. When the team introduces this to the cancer, an acidic microenvironment transforms the gold into plasmonic gold particles. The team claims that this can be done in just 30 minutes. It is much faster than traditional treatments, which take up to 24 or more hours.
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