2011: Recent submissions

Now showing items 61-80 of 186

Effect of silane coupling agent on the dielectric and thermal properties of DGEBA-forsterite composites

Sasikala, T S; Raman, S; Mohanan, P; Pavithran, C; Sebastian, M T (Springer, 2011)

Diglycidyl ether of bisphenol A (DGEBA) -forsterite composites have been prepared through mechanical mixing process and the influence of silane coupling agent on the microstructure, dielectric and thermal properties were ...
Role of heterozygous APC mutation in niche succession and initiation of colorectal cancer - A computational study

Roschen Sasikumar; Rejitha, J R; Binumon, P K; Manoj, M (Public Library Science, 2011)

Mutations in the adenomatous polyposis coli (APC) gene are found in most colorectal cancers. They cause constitutive activation of proliferative pathways when both alleles of the gene are mutated. However studies on ...
Bioethanol production from acid pretreated water hyacinth by separate hydrolysis and fermentation

Satyanagalakshmi, K; Sindhu, R; Binod, P; Janu, K U; Rajeev K Sukumaran; Pandey, A (NISCAIR, 2011)

This study evaluated water hyacinth as feedstock for bioethanol production. Among different organic and mineral acids tested on pretreatment of water hyacinth, H2SO4 was found to be effective. Structural changes before and ...
Substituent Effects in Cation-pi Interactions: A Unified View from Inductive, Resonance, and Through-Space Effects

Sayyed, F B; Suresh, C H (American Chemical Society, 2011)

The quantification of inductive (I), resonance (R), and through-space (TS) effects of a variety of substituents (X) in cation-pi interactions of the type C(6)H(5)X center dot center dot center dot Na(+) is achieved by ...
Quantitative assessment of substituent effects on cation-pi interactions using molecular electrostatic potential topography

Sayyed, F B; Suresh, C H (American Chemical Society, 2011)

A molecular electrostatic potential (MESP) topography based approach has been proposed to quantify the substituent effects on cation-pi interactions in complexes of mono-, di-, tri-, and hexasubstituted benzenes with Li(+), ...
Grinding of aluminium silicon carbide metal matrix composite materials by electrolytic in-process dressing grinding

Shanawaz, A M; Sundaram, S; Pillai, U T S; Aurtherson, P B (Springer, 2011)

The grinding cost of metal matrix composite materials is more due to low removal rates and high rates of wear of super abrasive wheels. This electrolytic in-process dressing (ELID) technique uses a metal-bonded grinding ...
Dansyl-Naphthalimide dyads as molecular probes: effect of spacer group on metal ion binding properties

Shankar, B H; Ramaiah, D (American Chemical Society, 2011)

Interaction of a few dansyl-naphthalimide conjugates 1a-e linked through polymethylene spacer groups with various metal ions was investigated through absorption, fluorescence, NMR, isothermal calorimetric (ITC), and laser ...
Synthesis of CdS nanorods and nanospheres: shape tuning by the controlled addition of a sulfide precursor at room temperature

Shanmugapriya, T; Vinayakan, R; George Thomas, K; Ramamurthy, P (Royal Society of Chemistry, 2011)

Shape tuning of CdS nanocrystals (NCs) by controlled growth and stabilization by tetraoctyl ammonium bromide ligands in non-aqueous medium is thoroughly investigated in this report. CdS nanorods and nanospheres were ...
Microwave dielectric properties of novel rare earth based silicates: RE2Ti2SiO9 [RE = La, Pr and Nd]

Sherin, T; Sayoojyam, B; Sebastian, M T (Springer, 2011)

The RE2Ti2SiO9 [RE = La, Nd and Pr] ceramics are synthesized by solid state ceramic route. These materials exhibit a relative permittivity of about 30 with quality factor in the range 19,600-33,700 GHz. They also showed ...
Role of molecular packing in determining solid-state optical properties of pi-conjugated materials

Shinto Varghese; Suresh Das (American Chemical Society, 2011)

The optical properties of pi-conjugated organic molecules in their solid state are critically important in determining performance efficiencies of optoelectronic devices such as organic light-emitting diodes and organic ...
Lipoglycans contribute to innate immune detection of mycobacteria

Shyam Krishna; Ray, A; Dubey, S K; Larrouy-Maumus, G; Chalut, C; Castanier, R; Noguera, A; Gilleron, M; Puzo, G; Vercellone, A; Nampoothiri, K M; Nigou, J (Public Library Science, 2011)

Innate immune recognition is based on the detection, by pattern recognition receptors (PRRs), of molecular structures that are unique to microorganisms. Lipoglycans are macromolecules specific to the cell envelope of ...
Hybrid gold atomic cluster-cobalt oxide scaffolds for dual tandem electrocatalytic sensing of cysteine

Sindhu, R N; Prathish, K P; Karthik, G; Prasada Rao, T (Elsevier, 2011)

Innovations in nanoelectrochemistry have opened a plethora of techniques for the preparation of nanometer sized electrochemical probes with tunable properties. Atomic clusters emerged at the cross-road of physics and ...
Molecular fluorescent probe for Zn2+ based on 2-(2-nitrostyryl)-8-methoxyquinoline

Praveen, L; Suresh, C H; Reddy, M L P; Luxmi Varma, R (Elsevier, 2011)

A fluorescent Zn2+ sensor based on the 2-(2-nitrostyryl)-8-methoxyquinoline (2-nitroSQ) has been designed, synthesized, and characterized by various spectral techniques. The designed fluorophore displays high selectivity, ...
Modified attapulgite: An efficient solid acid catalyst for acetylation of alcohols using acetic acid

Pushpaletha, P; Lalithambika, M (Elsevier, 2011)

Acid treated attapulgites catalyze acetylation of alcohols using acetic acid in excellent yield. Natural attapulgites from different states of India: Gujarat, Andra Pradesh and Karnataka were modified by acid activation ...
Influence of disorder-to-order transition on lattice thermal expansion and oxide ion conductivity in (CaxGd1-x) 2 (Zr1-xMx)2 O-7 pyrochlore solid solutions

Radhakrishnan, A N; Prabhakar Rao, P; Mary Linsa, K S; Deepa, M; Peter Koshy (Elsevier, 2011)

The effect of simultaneous substitutions of Ca at A site and Nb or Ta at B site in pyrochlore-type solid solutions: (CaxGd1-x)(2)(Zr1-xMx)(2) O-7 (x = 0.1, 0.2, 0.3, 0.4, 0.5 and M = Nb or Ta) were studied by powder X-ray ...
Flow stress modeling of AZ91 magnesium alloys at elevated temperature

Raghunath, B K; Raghukandan, K; Karthikeyan, R; Palanikumar, K; Pillai, U T S; Gandhi, R A (Elsevier, 2011)

The flow curve is constructed by flow stress data obtained from compression test conducted at different temperature and strain rate. Accurate flow stress model is crucial for investigating magnesium alloys deformation ...
Combined addition of nano diamond and nano SiO2, an effective method to improve the in-field critical current density of MgB2 superconductor

Rahul, S; Neson Varghese; Vinod, K; Devadas, K M; Syju Thomas; Anees, P; Chattopadhyay, M K; Roy, S B; Syamaprasad, U (Elsevier, 2011)

MgB2 bulk samples added with nano SiO2 and/or nano diamond were prepared by powder-in-sealed-tube (PIST) method and the effects of addition on structural and superconducting properties were studied. X-ray diffraction (XRD) ...
Isolation, characterization and quantification of tricin and flavonolignans in the medicinal rice njavara (Oryza sativa L.), as compared to staple varieties

Smitha, M; Parvathy, R; Shalini, V; Helen, A; Jayalekshmy, A (Springer, 2011)

Njavara is an important medicinal rice variety of Kerala, India, widely used in Ayurveda as a 'health food' and in the treatment of rheumatoid arthritis, paralysis, neurodegenerative diseases and in rejuvenation therapy. ...
Rhodamine 6G Intercalated montmorillonite nanopigments-polyethylene composites: Facile synthesis and ultravioletstability study

Smitha, V S; Manjumol, K A; Ghosh, S K; Brahmakumar, M; Pavithran, C; Perumal, P; Warrier, K G K (Wiley, 2011)

Bright red pigments, based on montmorillonite (MM) intercalated with rhodamine 6G (R6G) have been developed for the purpose of pigmenting polyethylene-based polymers. The cationic dye R6G was intercalated into NH(4)+-saturated ...
Selected papers presented at the ICBF-2010, Curitiba, Brazil, October 5-8, 2010 Preface

Soccol, C R; Pandey, A; Larroche, C; Thomaz-Soccol, V (Faculty Food Technology Biotechnology, 2011)

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