Flavonoids (or bioflavonoids) (from the Latin word flavus meaning yellow, their colour in nature) are a class of plant secondary metabolites. Flavonoids were referred to as Vitamin P (probably because of the effect they had on the permeability of vascular capillaries) from the mid-1930s to early 50s, but the term has since fallen out of use. According to the IUPAC nomenclature, [http://goldbook.iupac.org/F02424.html flavonoids (isoflavonoids and neoflavonoids)] IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackw...

Methacrylate refers to derivatives of methacrylic acid. These derivatives include the parent acid ( CH2C(CH3)CO2H), salts (e.g., CH2C(CH3)CO2-Na+), esters (e.g. CH2C(CH3)CO2CH3, or methyl methacrylate) and the polymers of these species. Methacrylates are common monomers in polymer plastics, forming the acrylate polymers. Methacrylates easily form polymers because the double bonds are very reactive. They are used as the monomer resin in some windscreen repair kits, and as bone cement for fixing prosthetic devices in orthopaedic surgery. Recently, organic−inorganic hybrid nanobuilding bloc...