Synthesis and Properties of Sulfhydryl-Reactive Near-Infrared Cyanine Fluorochromes for Fluorescence Imaging

Near-infrared fluorochromes (NIRF) are useful compounds for diverse biotechnology applications and for in vivo biomedical imaging. Such NIRF must have high quantum yield, be biocompatible, and be conjugatable to a wide variety of proteins, peptides, and other affinity ligands. Here, we describe the...

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Bibliographic Details
Main Authors: Yuhui Lin, Ralph Weissleder, Ching-Hsuan Tung
Format: Article
Language:English
Published: Hindawi - SAGE Publishing 2003-04-01
Series:Molecular Imaging
Online Access:https://doi.org/10.1162/15353500200303121
Description
Summary:Near-infrared fluorochromes (NIRF) are useful compounds for diverse biotechnology applications and for in vivo biomedical imaging. Such NIRF must have high quantum yield, be biocompatible, and be conjugatable to a wide variety of proteins, peptides, and other affinity ligands. Here, we describe the synthesis of four new nonsymmetrical sulfhydryl-reactive cyanine NIRF with excellent optical and chemical properties. Each fluorochrome was designed to contain an iodoacetamido group that reacts specifically with sulfhydryl-containing molecules. The synthesized fluorochromes were used to label model peptides and sulfhydryl-containing biomolecules.
ISSN:1536-0121