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  2. Allantoin - Wikipedia

    en.wikipedia.org/wiki/Allantoin

    Allantoin is a major metabolic intermediate in most organisms including animals, plants and bacteria, though not humans. It is produced from uric acid, which itself is a degradation product of nucleic acids, by action of urate oxidase (uricase). [3] [4] [5] Allantoin also occurs as a natural mineral compound (IMA symbol Aan [6]).

  3. Thin-film drug delivery - Wikipedia

    en.wikipedia.org/wiki/Thin-film_drug_delivery

    Thin-film drug delivery uses a dissolving film or oral drug strip to administer drugs via absorption in the mouth (buccally or sublingually) and/or via the small intestines (enterically). A film is prepared using hydrophilic polymers that rapidly dissolves on the tongue or buccal cavity, delivering the drug to the systemic circulation via ...

  4. Hydantoin - Wikipedia

    en.wikipedia.org/wiki/Hydantoin

    Hydantoin can also be synthesized either by heating allantoin with hydroiodic acid or by "heating bromacetyl urea with alcoholic ammonia". [6] The cyclic structure of hydantoins was confirmed by Dorothy Hahn 1913. [7] Of practical importance, hydantoins are obtained by condensation of a cyanohydrin with ammonium carbonate. Another useful route ...

  5. Sublingual administration - Wikipedia

    en.wikipedia.org/wiki/Sublingual_administration

    Sublingual strips—similar to tablets in that they easily melt in the mouth and dissolve rapidly. Suboxone is an example of medication that comes in a sublingual strip. Multi-purpose tablets—Soluble tablets for either oral or sublingual (or buccal ) administration, often also suitable for preparation of injections, Hydrostat ( hydromorphone ...

  6. Polar aprotic solvent - Wikipedia

    en.wikipedia.org/wiki/Polar_aprotic_solvent

    A polar aprotic solvent is a solvent that lacks an acidic proton and is polar. Such solvents lack hydroxyl and amine groups. In contrast to protic solvents, these solvents do not serve as proton donors in hydrogen bonding, although they can be proton acceptors.

  7. Allantoic acid - Wikipedia

    en.wikipedia.org/wiki/Allantoic_acid

    It is a crystalline acid obtained by hydrolysis of allantoin. In nature, allantoic acid is produced from allantoin by the enzyme allantoinase (encoded by the gene AllB ( Uniprot : P77671 ) in Escherichia coli and other bacteria ).

  8. Suture materials comparison chart - Wikipedia

    en.wikipedia.org/wiki/Suture_materials...

    The natural plain thread is precision ground in order to achieve a monofilament character and treated with a glycerol containing solution. Plain is absorbed by enzymatic degradation. Adsorbable biological suture material. Chromic is an adsorbable suture made by twisting together strands of purified collagen taken from bovine intestines.

  9. Talk:Allantoin - Wikipedia

    en.wikipedia.org/wiki/Talk:Allantoin

    Allantoin is widely known as a 'cell proliferant'. The official explanation appears to be that the compound speeds (somehow) the traversal of proteins across cell membranes, allowing tissue to grow more quickly. Allantoin is a product of metabolism and of trauma (being produced via trauma in the human brain.)