Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving hydrolase
Patent
1978-11-13
1980-10-21
Kepplinger, Esther M.
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving hydrolase
G01N 3114
Patent
active
042295289
ABSTRACT:
Analysis of proteinases is accomplished using conventional amino acid containing aromatic amine substrates. Aromatic amines such as 4-methoxy-2-naphthylamine (4M2NA), 2-naphthylamine, aminoisophthalic acid dimethyl ester, p-nitroaniline, 4-methoxy-1-aminofluorene and coumarin derivatives resulting from enzymatic hydrolysis of the substrate couples with aromatic aldehydes such as 5-nitrosalicylaldehyde (5-NSA), benzaldehyde and p-nitrobenzaldehyde to produce Schiff-base complexes which are water insoluble. Certain Schiff-base complexes produce a shift from blue to orange-red (visible) fluorescence. Such complexes are useful in the assay of enzymes.
REFERENCES:
patent: 3591459 (1971-07-01), Haschen et al.
patent: 3862011 (1975-01-01), Smith
Dolbeare Frank A.
Smith Robert E.
Figg Edward A.
Hartenberger Robert E.
Kepplinger Esther M.
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