A highly sensitive and fast responsive naphthalimide-based fluorescent probe for Cu²⁺ and its application

Abstract

The response of the probe L to Cu²⁺ is reversible and very fast (20 s). <bold>L</bold> has a low detection limit of 49 nM and was used for imaging of Cu²⁺ in MCF-7 cells with satisfying results. The sensor <bold>L</bold> can be analyzed with a molecular logic gate.