Design and Investigation of a Series of Rhodamine-Based Fluorescent Probes for Optical Measurements of pH
journal contributionposted on 16.07.2010 by Quinn A. Best, Ruisong Xu, Matthew E. McCarroll, Lichang Wang, Daniel J. Dyer
Any type of content formally published in an academic journal, usually following a peer-review process.
A series of structurally similar fluorescent probes (1−4), synthesized from rhodamine B, were designed to optically measure pH. Each probe had a unique “off−on” response as the solution went from basic to acidic. Probes 1−3 exhibited a spirocyclic quenching of the pyronin B fluorophore, whereas probe 4 was quenched by PET from the amine moiety.