2011: Recent submissions

Now showing items 21-40 of 186

Stability of rice bran oil in terms of oryzanol, tocopherols, tocotrienols and sterols

Afinisha Deepam, L S; Sundaresan, A; Arumughan, C (Springer, 2011)

The effect of oryzanol, tocopherols and tocotrienols (tocols) and sterols individually and as combinations of two were analyzed for DPPH radical scavenging activity and antioxidant activity. Oryzanol, tocols and sterols ...
Role of stereoelectronic features of Imine and Enamine in (S)-proline catalyzed Mannich reaction of Acetaldehyde: An in silico study

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

A detailed mechanistic investigation of sixteen possible diastereomeric pathways for the C-C bond formation step in (S)-proline catalyzed Mannich reaction of acetaldehyde with N-acetyl protected benzaldimine in acetonitrile ...
Titania-lanthanum phosphate photoactive and hydrophobic new generation catalyst

Jyothi, C K; Jaimy, K B; Ghosh, S K; Sankar, S; Smitha, V S; Warrier, K G K (Elsevier, 2011)

Titania-lanthanum phosphate nanocomposites with multifunctional properties have been synthesized by aqueous sol-gel method. The precursor sols with varying TiO(2):LaPO(4) ratios were applied as thin coating on glass ...
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 ...
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 ...
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 ...
Substrate specificities and mechanism of action of multiple alpha-galactosidases from Streptomyces griseoloalbus

Anisha, G S; Rojan P John; Prema, P (Elsevier, 2011)

alpha-Galactosidase or melibiase is a versatile enzyme with many potential biotechnological and industrial applications. The substrate specificities of three alpha-galactosidases - alpha-Gal I, alpha-Gal II, and alpha-Gal ...
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 ...
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. ...
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, ...
Application of the biorefinery concept to produce L-lactic acid from the soybean vinasse at laboratory and pilot scale

Karp, S G; Igashiyama, A H; Siqueira, P F; Carvalho, J C; Vandenberghe, L P S; Thomaz-Soccol, V; Coral, J; Tholozan, J L; Pandey, A; Soccol, C R (Elsevier, 2011)

Lactic acid is a product that finds several applications in food, cosmetic, pharmaceutical and chemical industries. The main objective of this work was the development of a bioprocess to produce L(+)-lactic acid using ...
Development and evaluation of two PVD-coated beta-titanium orthodontic archwires for fluoride-induced corrosion protection

Krishnan, V; Krishnan, A; Remya, R; Ravikumar, K K; Asha S Nair; Shibli, S M A; Varma, H K; Sukumaran, K; Kumar, K J (Elsevier, 2011)

The present research was aimed at developing surface coatings on beta titanium orthodontic archwires capable of protection against fluoride-induced corrosion. Cathodic arc physical vapor deposition PVD (CA-PVD) and magnetron ...
β-Cyclodextrin as a photosensitizer carrier: Effect on photophysical properties and chemical reactivity of squaraine dyes

Arun, K T; Dhanya, T J; Rekha, R A; Ramaiah, D (American Chemical Society, 2011)

With the objective of understanding the utility of beta-cyclodextrin (beta-CD) as a carrier system, we have investigated its interactions with a few near-infrared absorbing squaraine dyes (i.e., 1a,b and 2a,b) through ...
Antitumour activity of Grifola frondosa exopolysaccharides produced by submerged fermentation using sugar cane and soy molasses as carbon sources

Chimilovski, J S; Habu, S; Teixeira, R F B; Thomaz-Soccol, V; Noseda, M D; Medeiros, A B P; Pandey, A; Soccol, C R (Faculty Food Technology Biotechnology, 2011)

Grifola frondosa is an edible Basidiomycete and produces exopolysaccharides (EPS) known for their antitumour activity. The objectives of this study are to produce exopolysaccharides in submerged fermentation using alternative ...
Potential plant growth-promoting activity of Serratia nematodiphila NII-0928 on black pepper (Piper nigrum L.)

Dastager, S G; Deepa, C K; Pandey, A (Springer, 2011)

A potential bacterial strain designated as NII-0928 isolated from Western ghat forest soil with multiple plant growth promoting attributes, and it has been identified and characterized. Plant growth promoting traits were ...
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 ...
Lipase from marine Aspergillus awamori BTMFW032: Production, partial purification and application in oil effluent treatment

Basheer, S M; Sreeja, C; Beena, P S; Rajeev K Sukumaran; Elyas, K K; Chandrasekaran, M (Elsevier, 2011)

Marine fungus BTMFW032, isolated from seawater and identified as Aspergillus awamori, was observed to produce an extracellular lipase, which could reduce 92% fat and oil content in the effluent laden with oil. In this ...
Effect of chain-length of n-alkane on solvent-induced crystallization and solvent exchange phenomenon in syndiotactic polystyrene

Bhoje Gowd, E; Tashiro, K (Elsevier, 2011)

The effect of molecular size and the vapor pressure of a series of n-alkanes as a solvent on solvent-induced crystallization of amorphous sPS and also the solvent exchange phenomenon in the delta form of syndiotactic ...
Methotrexate intercalated ZnAl-layered double hydroxide

Chakraborty, M; Dasgupta, S; Soundrapandian, C; Chakraborty, J; Ghosh, S K; Mitra, M K; Basu, D (Elsevier, 2011)

The anticancerous drug methotrexate (MTX) has been intercalated into an ZnAl-layered double hydroxide (LDH) using an anion exchange technique to produce LDH-MTX hybrids having particle sizes in the range of 100-300 nm. ...
Ba-3(P1-xMnxO4)(2): Blue/green inorganic materials based on tetrahedral Mn(V)

Laha, S; Sharma, R; Bhat, S V; Reddy, M L P; Gopalakrishnan, J; Natarajan, S (Springer, 2011)

We describe a blue/green inorganic material, Ba-3(P1-x-MnxO4)(2) (I) based on tetrahedral MnO43-:3d(2) chromophore. The solid solutions (I) which are sky-blue and turquoise-blue for x <= 0.25 and dark green for x >= 0-50, ...

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