| penicilloyl polylysine | A preparation of polylysine and a penicillic acid, used intradermally in the diagnosis of penicillin sensitivity; sensitive persons may react with systemic manifestations, including generalised cutaneous eruptions. (05 Mar 2000) |
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| polylysine | <biochemistry> A polymer of lysine, it carries multiple positive charges and is used to mediate adhesion of living cells to synthetic culture substrates or of fixed cells to glass slides (for observation by fluorescence microscopy, for example). (18 Nov 1997) |
| trinitrophenyl-polylysine-horseradish peroxidase | <chemical> Conjugate for detection of anti-tnp antibodies in vivo (mice) Synonym: tnp-poly-lys-hrp (26 Jun 1999) |