Innovations in two-photon fluorescence microscopy are extending the range of scientific issues and biological tissues that can be studied with in vivo cellular level imaging. Previously inacessible deep tissues can now be studied using two-photon fluorescence microendoscopy, fiber optic studies in behaving animals are under way, and new fluorescence staining methods are bringing in vivo cellular dynamics into view. Full-text article is not available.

© 2004 Optical Society of America