A gel (from the lat. gelu—freezing, cold, ice or gelatus—frozen, immobile) is a solid, jelly-like material that can have properties ranging from soft and weak to hard and tough. Gels are defined as a substantially dilute cross-linked system, which exhibits no flow when in the steady-state. By weight, gels are mostly liquid, yet they behave like solids due to a three-dimensional cross-linked network within the liquid. It is the crosslinks within the fluid that give a gel its structure (hardness) and contribute to stickiness (tack). In this way gels are a dispersion of molecules of a liquid within a solid in which the solid is the continuous phase and the liquid is the discontinuous phase.

Contents

• 1 Composition
  • 1.1 Cationic polymers
• 2 Types of gels
  • 2.1 Hydrogels
  • 2.2 Organogels
  • 2.3 Xerogels
• 3 Properties
  • 3.1 Sound-induced gelation
• 4 Naturally occurring gels in the animal kingdom
• 5 Applications
• 6 See also
• 7 References
• 8 Further reading
• 9 External links

Noun

gels

1. Plural form of gel.

Anagrams

• ElGs, ELGs
• legs

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... Grows information plus more related topics on Wretchedness.com ... is typically created with the help of creams, gels or ... Society: History: By Time Period: Twentieth ... See also ...
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