the data reported demonstrate that the critical macromolecular , age-independent , and species-unspecific serum principle can be omitted from the suspensions if the medium is supplemented with a combination of crystalline serum albumin and high concentrations of any one of five studied dipolar ionic buffers [ n , n-bis ( 2-hydroxyethyl ) glycine ( bicine ) , n-2-hydroxyethylpiperazine-n'-2-ethanesulfonic acid ( hepes ) , 2- ( n-morpholino ) ethanesulfonic acid ( mes ) , n-tris ( hydroxymethyl ) methyl-2-amino-ethanesulfonic acid ( tes ) , and n-tris ( hydroxymethyl ) methylglycine ( tricine ) ] .
C0017890
glycine
C0002520
amino