Journal of biomolecular structure & dynamics, 2022, Volume: 40, Issue:13
The protein-nanoparticle interface plays a crucial role in drug binding and stability, in turn enhancing efficacy in targeted drug delivery. In the present study, whey protein β-lactoglobulin (BLG) is conjugated with gold nanoparticles (AuNP) and its interaction with curcumin (CUR) and gemcitabine (GEM) has been explored. Further, AuNP-BLG conjugate interactions with anticancer drugs were characterized using dynamic light scattering (DLS), zeta potential, UV-visible, Raman spectroscopy, fluorescence, circular dichroism along with molecular dynamics simulation. The cytotoxicity studies were performed using breast cancer cell lines (MCF-7). ∼8 µM of BLG resides on AuNP (∼29 nm) surface revealed by DLS. Raman scattering of AuNP-BLG conjugate showed orientation of the central calyx of BLG towards solvent. BLG fluorescence confirmed the interaction between AuNP-BLG conjugate with drugs and indicated strong binding and affinity (for CUR Topics: Antineoplastic Agents; Circular Dichroism; Curcumin; Echocardiography; Gold; Humans; Hypertension, Pulmonary; Lactoglobulins; Metal Nanoparticles; Mitral Valve Insufficiency; Prospective Studies; Stroke Volume; Ventricular Function, Left | 2022 |