Influence of nanoscopic micellar confinements on spectroscopic probing and rotational dynamics of an antioxidative naphthalimide derivative

► Photophysics of antioxidative ANAP is modified significantly in the micellar nanocavities. ► Binding efficiency of ANAP with TX-100 is much greater extent than CTAB and SDS. ► Fluorescence quenching suggests that ANAP resides at the micelle-water interface. ► Rotational dynamics of ANAP entrapped in microenvironment.