Photophysical Properties of the 2-Hydroxytryptanthrin and Its Sodium Salt as Near-infrared Dyes for Fluorescent Imaging

被引：0

作者：

Jun Kawakami

Masahiro Takahashi

Shunji Ito

Haruo Kitahara

机构：

[1] Hirosaki University,Graduate School of Science and Technology

[2] 3 Bunkyo-cho,Kitahara Laboratory Co. Ltd

来源：

Analytical Sciences | 2016年 / 32卷

关键词：

Near-infrared fluorescence; fluorescent dye; 2-hydroxytryptanthrin; pH-dependent;

D O I：

暂无

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学科分类号：

摘要：

2-Hydroxytryptanthrin (T2OH) and its sodium salt (sodium tryptanthrin-2-olate, T2ONa) were synthesized as nearinfrared (NIR) dyes for fluorescent imaging. The absorption maxima (λa,max) of T2OH under a pH range from 1.3 to 7.2 and from 8.5 to 10.6 were ca. 410 nm and ca. 495 nm, respectively. Moreover, the fluorescence maxima (λf,max) were ca. 660 nm regardless of the pH range. T2ONa was water soluble and the λf,max were ca. 660 nm in both aprotic and protic solvents.

引用

页码：251 / 253

页数：2

共 27 条

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