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Institution

Kuvempu University

EducationShimoga, India
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.


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Journal ArticleDOI
TL;DR: A series of heterocyclic azodyes were synthesized by diazotisation of 5-phenyl-1,3,4-thiadiazole-2-amine by nitrosyl sulphuric acid as discussed by the authors.
Abstract: 5-Phenyl-1,3,4-thiadiazole-2-amine has been synthesized by single step reaction. A series of heterocyclic azodyes were synthesized by diazotisation of 5-phenyl-1,3,4-thiadiazole-2-amine by nitrosyl sulphuric acid followed by coupling with different coupling compounds such as 8-hydroxyquinoline, 2,6-diaminopyridine, 2-naphthol, N,N-dimethyl aniline, resorcinol, and 4,6-dihydroxypyrimidine. The dyes were characterized by UV-Vis, IR, 1H-NMR, 13C NMR, and elemental analysis. The synthesized compounds were also screened for biological activity.

35 citations

Journal ArticleDOI
TL;DR: DNA barcoding employing a 658 bp fragment of 5′ region of the mitochondrial cytochrome oxidase I (CO-I) gene is an efficient and accurate method for identification of aphid species (including cryptic species), an approach that potentially could play an important role in formulating viable pest management strategies, more especially biocontrol.
Abstract: Rapid, precise and timely identification of invasive pest insects such as aphids is important and a challenge worldwide due to their complex life cycles, parthenogenetic reproduction, sex and colour morphs. In this respect, DNA barcoding employing a 658 bp fragment of 5′ region of the mitochondrial cytochrome oxidase I (CO-I) gene is an effective tool in addressing the above. In the present study, we employed CO-I for discriminating 142 individuals representing 32 species of aphids from India. Sequence analyses revealed that the intraspecific and interspecific distances ranged from zero to 3.8% and 2.31 to 18.9%, respectively. In addition, the study also showed for the first time the prevalence of three cryptic species, namely Brevicoryne brassicae (Linnaeus), Hyperomyzus carduellinus (Theobald) and Brachycaudus helichrysi (Kaltenbach) from India. Our work has clearly demonstrated that DNA barcoding is an efficient and accurate method for identification of aphid species (including cryptic species), an approach that potentially could play an important role in formulating viable pest management strategies, more especially biocontrol.

35 citations

Journal ArticleDOI
TL;DR: In this paper, Halloysite nanotubes (HNTs) of the dimension 50nm x 1-3 mu m (diameter x length) are utilized to fabricate the alloy composite by employing electroless/autocatalytic deposition technique.

35 citations

Journal ArticleDOI
TL;DR: In this paper, a simple and inexpensive one-step in situ polymerization method was used to synthesize polyaniline/ZnFe2O4 nanocomposites.
Abstract: Polyaniline/ZnFe2O4 nanocomposites were synthesized by a simple and inexpensive one-step in situ polymerization method in the presence of ZnFe2O4 nanoparticles. The structural, morphological, and electrical properties of the samples were characterized by wide angle X-ray diffraction (WAXD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). WAXD and SEM revealed the formation of polyaniline/ZnFe2O4 nanocomposites. Infrared spectroscopy indicated that there was some interaction between the ZnFe2O4 nanoparticles and polyaniline. The dc electrical conductivity measurements were carried in the temperature range of 80 to 300 K. With increase in the doping concentration of ZnFe2O4, the conductivity of the nanocomposites found to be decreasing from 5.15 to 0.92 Scm(-1) and the temperature dependent resistivity follows ln rho(T) similar to T-1/2 behavior. The nanocomposites (80 wt % of ZnFe2O4) show a more negative magnetoresistance compared with that of pure polyaniline (PANI). These results suggest that the interaction between the polymer matrix PANI and zinc nanoparticles take place in these nanocomposites. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 120: 2856-2862, 2011

35 citations

Journal ArticleDOI
TL;DR: The antifertility activity of petroleum ether, chloroform, ethanol, and distilled water extracts of the fruits of the plant Balanites Roxburghii was found to be dose dependent and reversible on withdrawal of the treatment.
Abstract: Petroleum ether, chloroform, ethanol, and distilled water extracts of the fruits of the plant Balanites Roxburghii (Balanitaceae) were tested for antifertility activity in female albino rats at a dose of 300 and 600 mg/kg body weight orally. Among these, the ethanol extract was found to be most effective in causing significant abortifacient activity. The antifertility activity was found to be dose dependent and reversible on withdrawal of the treatment. Phytochemical screening of the ethanol extract showed positive tests for the presence of alkaloids, glycosides, saponins, flavones, and phenolic compounds. The histological studies of the uterus and ovary were carried out to confirm the estrogenic activity. Acute toxicity studies of the crude extracts in mice revealed the non-toxic nature of the crude extracts.

35 citations


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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20238
202224
2021214
2020189
2019139
2018135