Fluorescent enzymatic probes suitable for two-photon excitation

被引：13

作者：

Overway, KS ^{[1
]}

Lytle, FE ^{[1
]}

机构：

[1] Purdue Univ, Dept Chem, Brown Lab 1393, W Lafayette, IN 47907 USA

来源：

APPLIED SPECTROSCOPY | 1998年 / 52卷 / 02期

关键词：

fluorescence; two-photon; enzymes; aminopeptidase;

D O I：

10.1366/0003702981943392

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Several common aminopeptidase probes are examined for the strength of two-photon excited fluorescence. The fluorophores 4-methoxy-beta-naphthylamine and 7-amino-1-methylcoumarin have limits of detection of 930 pM and 200 pM, respectively. The coumarin derivative is shown to have a two-photon cross section at 590 nm, which is exceptionally large for an aromatic amine. Spectral data for this compound also indicate that excitation near 690 nm should permit quantitation at concentrations as low as 40 pM.

引用

页码：298 / 302

页数：5

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