The basic subunit of any living organism; the simplest unit that can exist as an independent living system. There are many different types of cells in complex organisms such as humans, each with specific characteristics. (Source: GreenFacts)
Material with one or more external dimensions, or an internal structure, at
nanoscale and which could exhibit novel characteristics compared to the same
material at a larger scale.
(Source: based on SCENIHR's
opinion on
the
Particle with one or more dimensions of the order of about 100 millionth of a millimetre (100 nm) or less.
(Note: In the SCENIHR
The SCCS provides opinions on questions concerning all types of health and safety risks (notably chemical, biological, mechanical and other physical risks) of non-food consumer products (for example: cosmetic products and their ingredients, toys, textiles, clothing, personal care and household products such as detergents, etc.) and services (for example: tattooing, artificial sun tanning, etc.). For further information on the SCCS, see:
http://ec.europa.eu/health/scientific_committees/consumer_safety/index_en.htm
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