Kuvempu University

About: Kuvempu University is a education organization based out in Shimoga, India. It is known for research contribution in the topics: Cyclic voltammetry & Carbon paste electrode. The organization has 1575 authors who have published 2210 publications receiving 39755 citations. The organization is also known as: KU.

Novel synthetic approach for 1,4-dihydroxyanthraquinone and the development of its lithiated salts as anode materials for aqueous rechargeable lithium-ion batteries

Abstract: The use of organic electrode materials in the field of lithium ion batteries is becoming a keen interest for the present generation of scientists. Here we are reporting a novel method of synthesis for electrode materials using a combination of sono-chemical and thermal methods. The advantages of organic active materials in lithium ion batteries are of core interest in this study. Structural confirmations are provided by FT-IR, 1H NMR, MALDI-TOF mass spectroscopy and powder XRD data. The electrochemical properties of lithiated-1,4-dihydroxyanthraquinone were studied using electrochemical techniques such as cyclic voltammetry, galvanostatic cyclic potential limitation and potentiostatic electrochemical impedance spectroscopy. Satisfactory results towards the stability of the active species in aqueous media, reasonable discharge capacity with a 0.9 V average voltage and agreeable cycling performance during the charge–discharge process with reproducibility are achieved. For the construction of the full cell, the anode material was coupled with LiNi1/3Co1/3Mn1/3O2 as a cathode material.

Synthesis of ruthenium(II) carbonyl complexes with 2-monosubstituted and 1,2-disubstituted benzimidazoles

Abstract: The reaction of the polymeric carbonyl complex [RuCl 2 (CO 2 ] x with 2-monosubstituted and 1,2-disubstituted benzimidazoles and 1,4-bis(benzimidazol-2-yl)benzene (L 9 ) in 2-methoxyethanol produces various coloured complexes of the formulae [Ru(CO) 2 Cl 2 (L) 2 ]·xH 2 O (L = 1-(o-hydroxybenzyl)-2-- (o-hydroxyphenyl)benzimidazole (L 1 ), 1-(o-hydroxyphenyl)benzimidazole (L 4 ), 1-(p-hydroxyphenyl)benzimidazole (L 5 ), 1-(p-chlorobenzyl)-2-p-chlorophenyl)benzimidazole (L 7 ), 1-[1-(dimethylamino)benzyl]-2-[1-(dimethyl-amino)phenyl]benzimidazole (L 10 ), x = 0; L = 2-benzylbenzimidazole (L 8 ), 1,4-bis(benzimidazol-2-yl)benzene (L 9 ), x = 2; L = 1-(o-chlorobenzyl)-1-(o-- chlorophenyl)benzimidazole (L 6 ); x = 3), [Ru(CO) 2 Cl(L 2 ) 3 ]Cl·3H 2 O and [Ru(CO) 2 (L 3 ) 4 ]Cl 2 ·3H 2 O (L 2 = 1-(m-hydroxybenzyl)-2-(m-hydroxyphenyl)-benzimidazole ; L 3 = 1-(p-hydroxybenzyl)-2-(p-hydroxyphenyl)benzimidazole). The complexes were characterized by elemental analysis, conductivity measurements, as well as infrared, electronic, 1 H- and 13 C-NMR spectral studies.

In vitro biological activities of new heterocyclic chalcone derivatives

Abstract: This work reports the synthesis and characterization of new heterocyclic chalcone derivatives 3(a–j) and in vitro biological evaluation for antiproliferative, antioxidant, antibacterial, antifungal, and antiviral properties. The antiproliferative efficacy and LC50 of the compounds against HepG2 cell lines were determined. The LC50 for 3d was found to be 8 μg/mL. All the compounds exhibited moderate DPPH scavenging activity and moderate to good antimicrobial activity against tested bacterial and fungal strains. Further, the compounds at their respective maximum non-toxic concentrations did not inhibit DNA viruses like buffalopox, camelpox, and goatpox.

Analysis of Digital Images Using Morphlogical Operations

Abstract: The main aim of this study is to transform the digital images into different forms. Image processing techniques are used with wide varieties of applications. The requirement is different for different applications. This study is mainly focused on how to transform the image using mathematical morphology so that it can be suitable for the respective applications. Mathematical morphology has been chosen to explain how images are used to illustrate mathematical set theoretic operations, such as union, intersection by means of morphological operations like dilation and erosion. These techniques are implemented in MATLAB using image processing algorithms. MATLAB is an excellent tool to accomplish these tasks.