A novel self-assembled platform where the micelles of a pyrene derivative act as the shell and squaraine (SQ) as the nucleus was constructed for the ratiometric near infrared (NIR) fluorescence detection of urinary spermine with high selectivity.
In this communication, we report phenylboronic acid-functionalized gold nanoclusters (APBA–Lys–AuNCs) using lysozyme as a reducing reagent and capping ligand.