Fluorescent probes for detection of protozoan parasites.
Fluorescent probes generally provide a rapid and simple staining technique, valuable for the rapid diagnosis of protozoal infections. However, many of these staining techniques have disadvantages for clinical tests: (I) they require a fluorescence microscope which is not always available in clinical laboratories; (2) the preparations are not permanent because the fluorescent probes do not withstand dehydration; (3) variable quenching of the fluorescence may occur, unless proper preventive measures are taken. In this article, Fumihiko Kawamoto and Nobuo Kumodo explain some of the most widely used fluorescent probes, and discuss how problems in their use can be minimised.
Fumihiko Kawamoto and Nobuo Kumada are at the Depatment of Medical Zoology, Nagoya University School of Medicine, Nagoya 466 Japan.
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