Dynamic properties and diverse applications of deep eutectic solvents

In the current scenario, Deep Eutectic Solvents (DESs) have gained a lot of significance compared to organic solvents and Ionic liquids. Due to the presence of a hydrogen bond donor and hydrogen bond acceptor in DESs, dynamic properties such as high thermal stability, electrochemical stability, good solvating power, and moderate viscosity can be observed. A thorough description of basic characteristic features of the DESs such as their formation, structure, physicochemical properties, and their diverse applications are discussed in this review paper. Different parameters like temperature, composition or molar ratio, and nature of components influence the properties and hence the applications of Deep Eutectic solvents, confirmed in the literature. Their vast uses in different domains, like drug delivery, synthesis, extraction of material, and electrochemistry aspects are discussed in detail. DESs have the potential as sustainable green solvents and can contribute to strengthening green chemistry. Future directions and challenges for research are also focused, on maximizing the performance and extending the applications of DESs for a wide range of academic and industrial endeavors.