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Chalcone based materials are widely used in many industrial applications. The two new similar chalcone based single crystals, namely (E)-3-(4-(benzyloxy)phenyl)-1-(4-hydroxyphenyl)prop-2-en-1-one (Crystal A)and (E)-1-(4-(benzyloxy)phenyl)-3-(4-hydroxyphenyl)prop-2-en-1-one (Crystal B) were synthesized and grown as single crystals by slow evaporation solution growth technique in acetone. The structures of the grown crystals were solved and refined by single crystal XRD and this demonstrates that crystal A shows an orthorhombic system with a space group of Pca2 1 and crystal B crystallizes in a monoclinic system with a space group of C2/c. The morphology of the crystals A and B was predicted using WINXMORPH. The hyperpolarizability studies were carried out for the chalcone single crystals using density functional theory (DFT) -triply parameter hybrid model DFT/B3LYP using GAUSSIAN 03. The calculated first order hyperpolarizability was found as 0.1314 6 10 230 e.s.u. for crystal A and 0.188 6 10 230 e.s.u. for crystal B.The second harmonic generation was studied by Kurtz-Perry test. The comparison statement of the enone shifted material properties enumerates interesting results in all the studies.

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Chitosan is a prominent biopolymer in research for of its physicochemical properties and uses. Each year, the number of publications based on chitosan and its derivatives increases. Because of its comprehensive biological properties, including antibacterial, antioxidant, and tissue regeneration activities, chitosan and its derivatives can be used to prevent and treat soft tissue diseases. Furthermore, chitosan can be employed as a nanocarrier for therapeutic drug delivery. In this review, we will first discuss chitosan and chitosan-based hydrogel polymers. The structure, functionality, and physicochemical characteristics of chitosan-based hydrogels are addressed. Second, a variety of characterization approaches were used to analyze and validate the physicochemical characteristics of chitosan-based hydrogel materials. Finally, we discuss the antibacterial, antibiofilm, and antifungal uses of supramolecular chitosan-based hydrogels. This review study can be used as a base for future research into the production of various types of chitosan-based hydrogels in the antibacterial and antifungal fields.