gel
Množina: gels
A colloid is a more solid form than a sol.
Solid produced by the formation of a three-dimensional cage structure, commonly of linked large-molecular-mass polymers, in which a liquid is trapped. It is a form of colloid. A gel may be a jellylike mass (pectin, gelatin) or have a more rigid structure (silica gel).
Intelligent gels are polymer gels that respond intelligently to their environments. Most gels shrink or swell in fairly strict proportion to the quality of solvent added to them, but some undergo a sudden change in dimension in response to relatively small fluctuations. This rapid response could make gels suitable for use as muscle for robots, or as valves in engineering. They are also likely to have medical applications, for example in long-term drug administration. The gel could sense conditions inside the body and vary drug delivery rate to maintain suitable levels in the bloodstream.
colloidal gel · gelatin
geijera · geijera parviflora · geisha · gel · gelatin · gelatine
gel
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