Government College

About: Government College is a based out in . It is known for research contribution in the topics: Population & Ring (chemistry). The organization has 4481 authors who have published 5986 publications receiving 57398 citations.

Biological aspects of Schiff base–metal complexes derived from benzaldehydes: an overview

Abstract: Schiff bases are stable imines containing C=N, where N is bonded to an alkyl or aryl group, but not with hydrogen and are prepared by condensation of aliphatic or aromatic primary amine with carbonyl compounds. They have the general formula R1R2C = NR3, where R3 ≠ H. The presence of the basic donor N atom and the stability of the imine function render Schiff bases as the most favored ligands that have the ability to stabilize metal ions in different oxidation states. The chelating environment in a Schiff base profoundly influences the electron distribution in the coordination sphere of metal in a complex and thereby regulates the property of the compounds in a big way. The structural diversity in some of the metal complexes with multidentate Schiff base ligands has triggered a wide range of applications of this class of compounds in sensors, catalysis, biology, medicines, and photonics. This review compiles the synthesis and biological activities (antimicrobial, antioxidant, anticancer, antitubercular, DNA interaction studies) of benzaldehyde-based Schiff bases and their metal complexes.

Biogenic synthesis of aromatic cardamom-wrapped zinc oxide nanoparticles and their potential antibacterial and mosquito larvicidal activity: An effective eco-friendly approach

Abstract: In the current study, Elettaria cardamomum (Ec) seed extract–assisted zinc oxide nanoparticles (ZnO NPs) were synthesized by a secure co-precipitation method and characterized through UV–vis, XRD, FTIR, SEM and TEM. The surface plasmon resonance of Ec-ZnO NPs was distinguished at 373 nm. The XRD pattern authenticates the crystalline nature and matches with JCPDS file No. 36-1451. The result acquired from the FTIR spectrum conveyed the potential biomolecules that take place in the Ec-ZnO NPs by sharp express peaks at 3472.30, 1416.81, 1573.95, 1557.02, and 848.25 Cm−1. SEM and TEM images make known the homogenous spherical form and average size (18.72 nm) of Ec-ZnO NPs, respectively. The Ec-ZnO NPs have better antioxidant activity at 100 μg/ml concentration than Ec seed extract. Additionally, the Ec-ZnO NPs were encompassed with enhanced antibiofilm activity at 100 μg/ml concentration against four different bacteria Enterococcus faecalis, Staphylococcus aureus, Pseudomonas aeruginosa, and Proteus vulgaris. Among them, Gram-negative bacteria were more susceptible to Ec-ZnO NPs. Moreover, when compared to Ec seed extract, the Ec-ZnO NPs was highly potential agent against Aedes aegypti (LC50 = 13.27 μg/ml, LC90 = 25.36 μg/ml) and Culex tritaeniorhynchus (LC50 = 15.09 μg/ml, LC90 = 29.70 μg/ml). Compare to Cx. tritaeniorhynchus, Ae. aegypti was more susceptible to Ec-ZnO NPs. Thus, the Ec-ZnO NPs can probably utilize to reduce the bacterial biofilm in the discipline of biomedical and pharmaceutics and as well as remarkable larvicidal agent to the constraint of mosquito vectors.

Taming rogue waves in vector Bose-Einstein condensates.

Abstract: Using gauge transformation method, we generate rogue waves for the two-component Bose-Einstein condensates (BECs) governed by the symmetric coupled Gross-Pitaevskii (GP) equations and study their dynamics. We also suggest a mechanism to tame the rogue waves either by manipulating the scattering length through Feshbach resonance or the trapping frequency, a phenomenon not witnessed in the domain of BECs, and we believe that these results may have wider ramifications in the management of rogons.