Nanoparticle

Nanoparticle

A Nanoparticle (pronunciation: /ˈnanəʊˌpɑːtɪk(ə)l/) is a microscopic particle whose size is measured in nanometers (nm). It is typically defined as a particle with a size less than 100 nanometers.

Etymology

The term "Nanoparticle" is derived from the Greek word 'nanos' meaning 'dwarf' and the English word 'particle'. The prefix 'nano-' is used in the metric system to denote a factor of 10^-9.

Types of Nanoparticles

There are several types of nanoparticles, including:

• Metal nanoparticles
• Ceramic nanoparticles
• Polymeric nanoparticles
• Lipid-based nanoparticles

Applications in Medicine

Nanoparticles have a wide range of applications in the field of medicine. They are used in drug delivery, medical imaging, cancer therapy, and biosensors.

Related Terms

• Nanomedicine
• Nanotechnology
• Nanomaterial
• Nanoscale

External links

• Medical encyclopedia article on Nanoparticle
• Wikipedia's article - Nanoparticle

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