A red fluorescence ‘off–on’ molecular switch for selective detection of Al3+, Fe3+ and Cr3+: experimental and theoretical studies along with living cell imaging
Two rhodamine B-based fluorescent probes exhibited remarkable absorbance-on and fluorescence-on responses to Al3+, which can be used for biological imaging.
An “off–on” fluorescent probe for sensitive and selective detection of peroxynitrite was synthesized and showed good photostability and low cytotoxicity.