Fig. 7From: Engineering nano-drug biointerface to overcome biological barriers toward precision drug deliveryReproduced with permission from Ref. [221] Copyright 2016, American Chemical Society. B A novel strategy to prepare lollipop-like dual-drug-loaded nanoparticles, Polydopamine (PDA), fills the gaps between the doxorubicin (DOX) and gossypol molecules to form the super-compact long-circulating nanoparticles and enhanced tumor penetration. Reproduced with permission from Ref. [222] Copyright 2019, John Wiley and SonsStrategies for carrier-free nanodrugs to improve drug delivery and stability. A A bioinspired coating offers a novel method to successfully inhibit and delay the Ostwald ripening of hydrophobic drug nanoparticles, resulting in smaller and evenly sized particles that provide enhanced drug delivery and long-term colloidal stability.Back to article page