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Badiadka Narayana

Bio: Badiadka Narayana is an academic researcher from Mangalore University. The author has contributed to research in topics: Dihedral angle & Ring (chemistry). The author has an hindex of 29, co-authored 733 publications receiving 4694 citations. Previous affiliations of Badiadka Narayana include Keene State College & University of Mysore.


Papers
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Journal ArticleDOI
TL;DR: In this article, the synthesis, crystal growth and non-linear optical properties of new chalcone derivatives are reported, including 4-propyloxy and 4-butoxy benzaldehydes.

131 citations

Journal ArticleDOI
TL;DR: In this paper, several computational techniques are used to obtain information about reactive properties of two pyrazole derivatives, CPMHP-I and CFHMP-II, including density functional theory (DFT) calculations, molecular dynamics simulations and molecular docking.

114 citations

Journal ArticleDOI
TL;DR: Kinetics and Isotherm adsorption studies revealed pseudo second-order and Freundlich isotherm as befitting models.

106 citations

Journal ArticleDOI
TL;DR: A simple, rapid and sensitive spectrophotometric method is described for the determination of hydrogen peroxide using toluidine blue as a reagent and the results of analysis are compared favorably with those from a reference method.
Abstract: A simple, rapid and sensitive spectrophotometric method is described for the determination of hydrogen peroxide using toluidine blue as a reagent. The proposed method is based on the liberation of iodine in acidic medium equivalent to the amount of hydrogen peroxide present. The liberated iodine bleaches the blue color of toluidine blue and is measured at 628 nm. The decrease in absorbance is directly proportional to hydrogen peroxide concentration and obeys Beer’s law in the range 0.2 × 10–6 –14 × 10−6 mol L−1. The molar absorptivity, sandel’s sensitivity, detection limit and quantitation limit of the method were found to be 1.82 × 104 L mol−1 cm−1, 2.01 × 10−9 mol L−1, 1.41 × 10−6 mol L−1 and 4.28 × 10−6 mol L−1 respectively. The results of analysis of the proposed method are compared favorably with those from a reference method.

105 citations

Journal ArticleDOI
TL;DR: In this paper, the authors report spectroscopic characterization and reactivity study by density functional theory (DFT) and molecular dynamics (MD) simulations of two quinoline derivatives.

97 citations


Cited by
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Journal ArticleDOI
10 Mar 1970

8,159 citations

Journal ArticleDOI
01 Dec 1941-Nature
TL;DR: The Pharmacological Basis of Therapeutics, by Prof. Louis Goodman and Prof. Alfred Gilman, New York: The Macmillan Company, 1941, p.
Abstract: The Pharmacological Basis of Therapeutics A Textbook of Pharmacology, Toxicology and Therapeutics for Physicians and Medical Students. By Prof. Louis Goodman and Prof. Alfred Gilman. Pp. xiii + 1383. (New York: The Macmillan Company, 1941.) 50s. net.

2,686 citations

Journal ArticleDOI
TL;DR: While the book is a standard fixture in most chemical and physical laboratories, including those in medical centers, it is not as frequently seen in the laboratories of physician's offices (those either in solo or group practice), and I believe that the Handbook can be useful in those laboratories.
Abstract: There is a special reason for reviewing this book at this time: it is the 50th edition of a compendium that is known and used frequently in most chemical and physical laboratories in many parts of the world. Surely, a publication that has been published for 56 years, withstanding the vagaries of science in this century, must have had something to offer. There is another reason: while the book is a standard fixture in most chemical and physical laboratories, including those in medical centers, it is not as frequently seen in the laboratories of physician's offices (those either in solo or group practice). I believe that the Handbook can be useful in those laboratories. One of the reasons, among others, is that the various basic items of information it offers may be helpful in new tests, either physical or chemical, which are continuously being published. The basic information may relate

2,493 citations

01 Dec 2007

1,121 citations

Journal Article
TL;DR: In this article, B. mori silk fibroin films were studied thermally using temperature-modulated differential scanning calorimetry (TMDSC) to obtain the reversing heat capacity.
Abstract: We report a study of self-assembled beta-pleated sheets in B. mori silk fibroin films using thermal analysis and infrared spectroscopy. B. mori silk fibroin may stand as an exemplar of fibrous proteins containing crystalline beta-sheets. Materials were prepared from concentrated solutions (2−5 wt % fibroin in water) and then dried to achieve a less ordered state without beta-sheets. Crystallization of beta-pleated sheets was effected either by heating the films above the glass transition temperature (Tg) and holding isothermally or by exposure to methanol. The fractions of secondary structural components including random coils, alpha-helices, beta-pleated sheets, turns, and side chains were evaluated using Fourier self-deconvolution (FSD) of the infrared absorbance spectra. The silk fibroin films were studied thermally using temperature-modulated differential scanning calorimetry (TMDSC) to obtain the reversing heat capacity. The increment of the reversing heat capacity ΔCp0(Tg) at the glass transition fo...

837 citations