Chalcones comprise a characteristic framework of 1, 3-diaryl-2-propen-1-one. They have been heralded as promising anti cancer drugs and have received much attention in the field of cancer research and drug development. The cytotoxicity of these potent pharmacophores is attributable to a wide spectrum of biological activities like anti inflammatory, anti proliferative, anti fungal, etc. These anti tumor activities are effectuated through apoptosis, cell cycle arrest, anti tubulin and so forth. This review summarizes the recent developments on anti tumor activity of synthetic and natural chalcones and their detailed underlying mechanisms as reported in the past.

This review article gives an insight into recent developments in chelating agents modified nanostructures in metal extraction and catalysis. The ability of functionalization by anchoring specific functional groups on the surface of nanostructures makes it possible to synthesize different types of desired chelated nanostructures for their use as catalysts and metal ion scavengers. Keeping these aspects in outlook this review emphasizes mainly on the synthesis of chelating agent functionalized nanostructures and their applications in the field of metal ion extraction and catalysis. The review article provides comprehensive information about the work that has been done in the past 5 years in the field of metal ion extraction and catalysis using chelating agent modified nanoparticles.