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Browsing 2011 by Issue Date

Now showing items 1-20 of 186

Ethyl p-methoxycinnamate isolated from a traditional anti-tuberculosis medicinal herb inhibits drug resistant strains of Mycobacterium tuberculosis in vitro

Divya, L; Werngren, J; Jose, L; Suja, K P; Mangalam S Nair; Luxmi Varma, R; Sathish, M; Hoffner, S; Kumar, R A (Elsevier, 2011)

Many plants are used in Ayurveda for the treatment of tuberculosis. Our aim was to examine if these plants possess any specific molecule that inhibits Mycobacterium tuberculosis. One of them, Kaempferia galanga, yielded ...
Proline-specific extracellular aminopeptidase purified from streptomyces lavendulae

Arya Nandan, S; Pandey, A; Nampoothiri, K M (Humana Press, 2011)

Aminopeptidases catalyze the cleavage of specific amino acids from the amino terminus of protein or peptide substrates. A proline-specific aminopeptidase was purified to homogeneity from the culture-free extract of ...
Nimbolide sensitizes human colon cancer cells to TRAIL through reactive oxygen species- and ERK-dependent Up-regulation of death receptors, p53, and bax

Gupta, S C; Reuter, S; Phromnoi, K; Park, B; Hema, P S; Mangalam S Nair; Aggarwal, B B (American Society for Biochemistry and Molecular Biology, 2011)

TNF-related apoptosis-inducing ligand (TRAIL) shows promise as a cancer treatment, but acquired tumor resistance to TRAIL is a roadblock. Here we investigated whether nimbolide, a limonoid, could sensitize human colon ...
Role of anionic micellar template on the morphology, solid-state ordering, and unusual conductivity trend in poly(aniline-co-pyrrole) nanomaterials

Jinish Antony, M; Jayakannan, M (American Chemical Society, 2011)

Here, we report three structurally different anionic amphiphilic dopant micellar templates for the development of poly(aniline-co-pyrrole) copolymer nanomaterials and investigating the role of dopant on the morphology, ...
A higher energy conformer of (S)-proline is the active catalyst in intermolecular aldol reaction: Evidence from DFT calculations

Ajitha, M J; Suresh, C H (Elsevier, 2011)

Full catalytic cycle of the stereoselective (S)-proline catalyzed aldol reaction of acetone and acetaldehyde in DMSO solvent has been investigated using three different DFT methods, viz. B3LYP, MPWB1K and B97D in conjunction ...
Studies on the effect of processing parameters on electroless coating of copper on boron carbide particles

Deepa, M; Resmi, V G; Rajan, T P D; Pavithran, C; Pai, B C (Springer, 2011)

Boron carbide a hard refractory semiconductor ceramic material due to its unique structural properties and high neutron cross section finds application as structural materials and neutron shielding material. Its applicability ...
An improved bioprocess for extracellular l-Leucine amino peptidase production using Streptomyces gedanensis

Raji, R; Pandey, A; Nampoothiri, K M (Springer, 2011)

A bioprocess was developed for the production of l-leucine aminopeptidase under solid-state fermentation (SSF) by cultivating Streptomyces gedanensis in an inert support impregnated with a minimal medium. Response surface ...
Electrical and thermal properties of PTFE-Sr2ZnSi2O7 composites

Joseph, T; Uma, S; Philip, J; Sebastian, M T (Springer, 2011)

A new polymer-ceramic composite was prepared using PTFE and low loss Sr2ZnSi2O7. The dielectric properties of the composite were studied in the microwave and radiofrequency ranges. The relative permittivity (epsilon(r)) ...
Synthesis of surface imprinted nanospheres for selective removal of uranium from simulants of Sambhar salt lake and ground water

Milja, T E; Prathish, K P; Prasada Rao, T (Elsevier, 2011)

Imprinted polymer nanospheres for uranium were prepared by complexing uranyl ion on to quinoline-8-ol functionalized 3-aminopropyltrimethoxysilane modified silica nanoparticles followed by surface imprinting with 4-VP ...
Invitro antiperoxidative, free radical scavenging and xanthine oxidase inhibitory potentials of ethyl acetate fraction of Saraca ashoka flowers

Prathapan, A; Cherian, O L; Nampoothiri, S V; Mini, S; Raghu, K G (Taylor & Francis, 2011)

Saraca ashoka is a widely used medicinal herb claimed to cure many diseases. This study investigated the antiperoxidative, free radical scavenging and xanthine oxidase (XO) inhibitory potential of the ethyl acetate fraction ...
NHC catalyzed CO2 fixation with epoxides: Probable mechanisms reveal ter molecular pathway

Ajitha, M J; Suresh, C H (Elsevier, 2011)

Six different pathways for the NHC-mediated CO2 transformation reaction of epoxide to cyclic carbonate are investigated with DFT method at MPWB1K/6-311++G(3df,2p) level which confirms that the most favorable pathway is ter ...
Synthesis of Ag nanoparticles within the pores of SBA-15: An efficient catalyst for reduction of 4-nitrophenol

Naik, B; Hazra, S; Prasad, V S; Ghosh, N N (Elsevier, 2011)

Synthesis of uniform, spherical and rod shaped Ag nano particles within the uniform pore channels of mesoporous silica SBA-15 have been reported via a simple chemical method. High resolution transmission electron micrographs ...
meso-Aryl Triphyrin(2.1.1)

Anju, K S; Ramakrishnan, S; Srinivasan, A (American Chemical Society, 2011)

Synthesis, spectral, and single-crystal X-ray structural analysis of meso-aryl triphyrin(2.1.1) featuring three pyrrole rings and four meso-aryl rings are described. The title compound represents the first example of a ...
Structure, microwave dielectric and optical properties of Ln(2/3)Gd(1/3)TiNbO(6) (Ln=Ce, Pr, Nd and Sm) ceramics

Annamma, J; Shyla Joseph; Manu, K M; Thomas, J K; Sam Solomon (Springer, 2011)

The Ln(2/3)Gd(1/3)TiNbO(6) ceramic compositions are prepared through the solid state ceramic route. The compositions are calcined at 1250 A degrees C and sintered in the range 1350-1435 A degrees C. Structural analysis of ...
RP-HPLC-DAD method for the estimation of embelin as marker in Embelia ribes and its polyherbal formulations

Soumya, M N; Ranjith, A; Arumughan, C (Wiley, 2011)

Evidence-based herbal products with assured quality are assuming importance for complementary and alternative medicine. Traditional medicines by and large are not standardized and validated to meet the new requirements. ...
Polyaniline nanoscaffolds for colorimetric sensing of biomolecules via electron transfer process

Jinish Antony, M; Jayakannan, M (American Chemical Society, 2011)

Biologically important analytes such as cysteine and vitamin-C were detected by electron transfer (ET) via naked eye colorimetric sensing using a tailor-made water-soluble self-doped polyaniline (PSPANa) as a substrate. ...
Tuning of the excitation wavelength from UV to visible region in Eu3+-beta-diketonate complexes: Comparison of theoretical and experimental photophysical properties

Divya, V; Freire, R O; Reddy, M L P (Royal Society of Chemistry, 2011)

A novel class of efficient visible light sensitized antenna complexes of Eu3+ based on the use of a series of highly conjugated beta-diketonates, namely, 1-(1-phenyl)-3-(2-fluoryl) propanedione, 1-(2-naphthyl)-3-(2-fluoryl) ...
Cardioprotective effects of aqueous extract of Oxalis corniculata in experimental myocardial infarction

Abhilash, P A; Nisha, P; Prathapan, A; Nampoothiri, S V; Cherian, O L; Sunitha, T K; Raghu, K G (Elsevier, 2011)

The present study evaluated the protective potential of aqueous extract of Oxalis corniculata (OCE) against isoproterenol (ISO) induced myocardial infarction in rats. Myocardial infarction in rats was induced by isoproterenol ...
Amphiphilic pi-conjugated poly (m-phenylene) photosensitizer for the eu3+ ion: The role of macromolecular chain aggregation on the color tunability of lanthanides

Balamurugan, A; Reddy, M L P; Jayakannan, M (American Chemical Society, 2011)

Here, we report new carboxylic functionalized poly-(phenylene)s and their oligomers as selective and efficient photosensitizers for Eu3+ ions. Palladium-catalyzed Suzuki polycondensation was developed for the synthesis of ...
Transport properties of sealed MgB2/Fe/Ni multifilamentary wires heat treated in air

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

Ni sheathed multifilamentary MgB2 wires with Fe barrier and Cu stabilizer were prepared by the in situ Powder-In-Tube (PIT) method. After rolling, the ends of the wires were sealed by a simple capping technique and the ...

Now showing items 1-20 of 186

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