A “Light-up” 1D supramolecular nanoprobe for silver ions based on assembly of pyrene-labeled peptide amphiphiles: cell-imaging and antimicrobial activity

, intracellular detection using the "turn-on" response was performed. A considerable enhancement of fluorescence in NF-loaded HeLa cells was observed. In addition, the NFs were used as a template scaffold for the production of Ag nanoparticles (AgNPs) with high monodispersity and stability. The NFs decorated with AgNPs are shown to possess highly effective and long-term antibacterial activity against both Gram-negative and -positive bacteria.