Nanoparticles

  

       Nanoparticles

What is Nanoparticles?

A nanoparticle is a small particle that ranges between 1 to 100 nanometres in size. Undetectable by the human eye, nanoparticles can exhibit significantly different physical and chemical properties to their larger material counterparts. 

recent years, these materials have emerged as important players in modern medicine, with applications ranging from contrast agents in medical imaging to carriers for gene delivery into individual cells. 

In addition, nanoparticles can be classified as hard (e.g., titania [titanium dioxide], silica [silica dioxide] particles, and fullerenes) or as soft (e.g., liposomes, vesicles, and nanodroplets). 

Nanotechnology can be used to design pharmaceuticals that can target specific organs or cells in the body such as cancer cells, and enhance the effectiveness of therapy. Nanomaterials can also be added to cement, cloth and other materials to make them stronger and yet lighter.  

What are the three types of  nanoparticles?

Nanomaterials can be categorized into four types [9, 10] such as: (1) inorganic-based nanomaterials; (2) carbon-based nanomaterials; (3) organic-based nanomaterials; and (4) composite-based nanomaterials. Generally, inorganic-based nanomaterials include different metal and metal oxide nanomaterials.

Who discovered nanoparticles?

The American physicist and Nobel Prize laureate Richard Feynman introduce the concept of nanotechnology in 1959.

Advantages of Nanotechnology

Nanotechnology can also benefit the energy sector. The development of more effective energy-producing, energy-absorbing, and energy storage products in smaller and more efficient devices is possible with this technology.

What are 3 important properties of nanoparticles?

The principal parameters of nanoparticles are their shape, size, surface characteristics and inner structure. Nanoparticles can be encountered as aerosols (solids or liquids in air), suspensions (solids in liquids).

Are nanoparticles harmful?

Natural nanoparticles and possible safety concerns.Animal studies have shown that some nanoparticles can penetrate cells and tissues. These may move through the body, reach vital organs like brain and cause biochemical damage and even cancer. emulsions (liquids in liquids).

What is the most commonly used nanomaterials?

Silver is the most common nano-material used in products, followed by carbon-based nano-materials and metal oxides such as TiO2. Nanotechnology is going to pave the way for a revolution in materials, information and communication technology.           

What are nanoparticles examples?

In addition, nanoparticles can be classified as hard (e.g., titania [titanium dioxide], silica [silica dioxide] particles, and fullerenes) or as soft (e.g., liposomes, vesicles, and nanodroplets).

Why do we use nanomaterials?

Nanomaterials can also be added to cement, cloth and other materials to make them stronger and yet lighter. Their size makes them extremely useful in electronics, and they can also be used in environmental remediation or clean-up to bind with and neutralize toxins.

What nanoparticles are used in medicine?

Area Nanoparticle type Major in vivo applications

MRI Superparamagnetic iron oxide nanoparticles Cancer detection

Drug and gene delivery Polymer- and liposome-based nanoparticles Cancer therapy

Neurodegenerative disease therapy

HIV/AIDS therapy,etc.

What are examples of nanoparticles in daily life?

Everyday products that use nanotechnology

Sunscreen. Nanoparticles have been added to sunscreens for years to make them more effective.

1.Clothing 2.Furniture 3.Adhesives 4.Coatings for car- paintwork,Tennis balls,Computers,etc.

What is a nanoparticle made of?

Most nanoparticles are made up of only a few hundred atoms. The material properties change as their size approaches the atomic scale. This is due to the surface area to volume ratio increasing, resulting in the material's surface atoms dominating the material performance.

What are the limitations of nanoparticles?

Magnetic nanoparticles (MNPs):-

The main limitations of MNPs are burst drug release and low stability features. To overcome this issue, surface ligands are attached to MNPs, which in turn improve the stability and solubility in biological environments along with exhibiting lesser side effects 

What is another word for nanoparticles?

Nanoparticles occur in a great variety of shapes, which have been given many informal names such as nanospheres, nanorods, nanostars, nanoflowers,  nanowhiskers, nanofibers, and nanoboxes.

What metal are nanoparticles?

The metal-based nanoparticles such as silver, gold, copper, iron, zinc, platinum, and so on, received much attention in medicine. Faraday (1857) showed the metal nanoparticles can exist in solution.  

Application of nanoparticles 

Nanoparticles are used increasingly in catalysis to boost chemical reactions. This reduces the quantity of catalytic materials necessary to produce desired results, saving money and reducing pollutants. Two big applications are in petroleum refining and in automotive catalytic converters.