ABSTRACT
Biosurfactants are surface active biochemicals obtained from natural sources such as microorganisms (bacteria and fungi) and plants. Amphiphilic nature of biosurfactants allows them to maintain the interfacial tension and stabilize the formulations. Due to their potential to act as stabilizers and capping agents, biosurfactants are used in the formulation and stabilization of nanoparticles (NPs). Biosurfactants mediate the synthesis and stabilization of NPs by adsorbing onto the surfaces of NPs and prevent aggregation and stabilize NP formulations by acting as surface-active agents. Due to diverse characteristics and having a natural origin, biosurfactants are used as an alternative to synthetic stabilizers, in the green synthesis and stabilization of NPs. Biosurfactants are associated with various benefits such as low cost, safety, biodegradability, and effectiveness in extreme conditions (salinity, pH and temperature). In addition to their ability to stabilize NPs, biosurfactants due to their biodegradable nature and presence of certain functional groups can be used for various food, pharmaceutical and cosmetic products.
