Development of a mitochondrial-targeted two-photon fluorescence turn-on probe for formaldehyde and its bio-imaging applications in living cells and tissues
detection limit at picomolar (10–10 M) concentration, which makes a promise to detect thiols in cells. The biosensor can detect biothiol effectively in live cells and shows good targeting ability to the mitochondria. This new approach not only offers a practical technique to detect thiols in live cells, but may also present an excellent in vivo test platform for xenon biosensors.
(20) esters of camptothecin analogs are provided. The compounds are (20) esters of an aminoalkanoic acid or an imidoalkanoic acid and homocamptothecin, which is optionally substituted at the 7, 9, 10, 11, and 12 positions of the homocamptothecin ring. The compounds are useful for treating cancer.
(20S) esters of camptothecin analogs are provided. The compounds are (20S) esters of an aminoalkanoic acid or an imidoalkanoic acid and camptothecin, which is optionally substituted at the 7, 9, 10, 11, and 12 positions of the camptothecin ring. The compounds are useful for treating cancer.
A new fluorinated liposome gives instantaneous temperature-induced 19F MR signal enhancement and excellent stability under reversible signal transition.