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153 results on '"Neelgund, Gururaj M"'

37. Current Trends in Nanoporous Anodized Alumina Platforms for Biosensing Applications

Author

Sriram, Ganesan, Patil, Pravin, Bhat, Mahesh P., Hegde, Raveendra M., Ajeya, Kanalli V., Udachyan, Iranna, Bhavya, M. B., Gatti, Manasa G., Uthappa, U. T., Neelgund, Gururaj M., Jung, Ho-Young, Altalhi, Tariq, Madhuprasad, and Kurkuri, Mahaveer D.

Subjects
Article Subject
Abstract

Pristine aluminum (Al) has received great deal of attention on fabrication of nanoporous anodized alumina (NAA) with arrays of nanosized uniform pores with controllable pore sizes and lengths by the anodization process. There are many applications of NAA in the field of biosensors due to its numerous key factors such as ease of fabrication, high surface area, chemical stability and detection of biomolecules through bioconjugation of active molecules, its rapidness, and real-time monitoring. Herein, we reviewed the recent trends on the fabrication of NAA for high sensitive biosensor platforms like bare sensors, gold coated sensors, multilayer sensors, and microfluidic device supported sensors for the detection of various biomolecules. In addition, we have discussed the future prospectus about the improvement of NAA based biosensors for the detection of biomolecules.

Published
2016
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40. Tris(acetylacetonato-kappa O-2,O')(1,10-phenanthroline-kappa N-2,N')erbium(III)

Author

Neelgund, Gururaj M, Shivashankar, SA, Narasimhamurthy, T, and Rathore, RS

Subjects
Materials Engineering (formerly Metallurgy)
Abstract

The title compound, [Er(C5H7O2)(3)(C12H8N2)], is a mixed-ligand metal-organic precursor for chemical vapour deposition, with the Er atom being eight-coordinate. The coordination polyhedron, described as a distorted square antiprism, is formed by three bidentate (chelating) acetylacetonate residues and a phenanthroline ligand in the apical positions. Molecular assembly via C-H (...) O hydrogen bonds generates a sheet structure in the ac plane. Weak co-operative C - H .... pi interactions form molecular dimers and contribute to the stability of the intersheet packing. The supramolecular assembly contains voids which form hydrophobic porous channels, surrounded by a cluster of dimers.

Published
2007

41. Interaction of 2,3-dichloro-1,4-naphthoquinone with n-butylamin in halocarbon solvents

Author

Neelgund, Gururaj M and Budni, ML

Subjects
Materials Research Centre
Abstract

The rapid interaction between 2,3-dichloro-1,4-naphthoquinone (DCINQ)and n-butylamine results in the formation of 2N(n-butylamino)-3-chloro-1,4-naphthoquinone as the final product, The reaction is found to proceed through the initial formation of charge-transfer (CT) complex as an intermediate. The final product of the reaction has been isolated and characterized using FTIR, H-1 and C-13 NMR spectroscopy, mass spectrometry, and elemental analysis. The rate of formation of product has been measured as a function of time in different halocarbon solvents, viz., chloroform, dichloromethane and 1: 1 (v/v) mixture of two solvents. The pseudo first order and second order rate constants at various temperatures for the transformation process were evaluated from the absorbance time data. The activation parameters (E,, AS', Delta H-#and Delta G(#)) were obtained from temperature dependence of rate constants. The influence of dielectric constant on the properties of reaction was discussed and the probable course of reaction ispresented.

Published
2005

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