Browsing 2008 by Title

Now showing items 1-20 of 172

1D molecular ladder of the ionic complex of terbium-4-sebacoylbis(1-phenyl-3-methyl-5-pyrazolonate) and sodium dibenzo-18-crown-6: Synthesis, crystal structure, and photophysical properties

Remya, P N; Biju, S; Reddy, M L P; Cowley, A H; Findlater, M (American Chemical Society, 2008)

On the basis of the novel heterocyclic beta-diketone, 4-sebacoylbis(1-phenyl-3-methyl-5-pyrazolone (H2SbBP), three new lanthanide complexes Tb-2(SbBP)(3)(H2O)(2) (1), Gd-2(SbBP)(3)(H2O)(2) (2), and [Tb(SbBP)(2)] [Na(DB18C6)H2O] ...
2-Thiopheneacetato-based one-dimensional coordination polymer of Tb3+: Enhancement of terbium-centered luminescence in the presence of bidentate nitrogen donor ligands

Shyni, R; Reddy, M L P; Cowley, A H; Findlater, M (Wiley, 2008)

Four new lanthanide(III) complexes of 2-thiopheneacetic acid (HTPAC), [Tb(TPAC)(3)center dot H2O](n) (1), [Gd(TPAC)(3)center dot H2O](n) (2), [Tb(TPAC)(3)(phen)](2) (3) and [Tb(TPAC)(3)(bath)](2) (4) (phen = 1,10-phenanthroline; ...
9,10,19,20-Tetraarylporphycenes

Anju, K S; Ramakrishnan, S; Ajesh P Thomas; Suresh, E; Srinivasan, A (American Chemical Society, 2008)

meso-Tetraarylporphycenes, structural isomers of meso-tetraarylporphyrins, were synthesized by the acid-catalyzed oxidative coupling reaction for the first time which is an alternative synthetic methodology to the traditional ...
Acridine-viologen dyads: Selective recognition of single-strand DNA through fluorescence enhancement

Elizabeth Kuruvilla; Nandajan, P C; Schuster, G B; Ramaiah, D (American Chemical Society, 2008)

Tolylacridine-viologen dyads show distinct fluorescence emission changes in the presence of double-strand DNA (dsDNA) and single-strand DNA (ssDNA) depending on the position of the linkage. The para isomer shows fluorescence ...
Additional investigations on the separation of titanoferrous impurities from kaolin by high shear pretreatment and froth flotation - Part II

Raghavan, P; Sathy Chandrasekhar; Vogt, V; Gock, E; Suresh, N (Elsevier, 2008)

In line with the detailed investigations carried out in the laboratory for the separation and removal of colouring titanoferrous impurities from cryo-filtered Mamuara clay (Gujarat, India) based on high shear pretreatment ...
Al2O3 @ TiO2-A simple sol-gel strategy to the synthesis of low temperature sintered alumina-aluminium titanate composites through a core-shell approach

Jayasankar, M; Ananthakumar, S; Mukundan, P; Wunderlich, W; Warrier, K G K (Elsevier, 2008)

A simple sol-gel based core-shell approach for the synthesis of alumina-aluminium titanate composite is reported. Alumina is the core and titania is the shell. The coating of titania has been performed in aqueous medium ...
Anaerobic protozoa and their growth in biomethanation systems

Priya, M; Ajit Haridas; Manilal, V B (Springer, 2008)

This study was to investigate growth of protozoa and its influence on biodegradation in anaerobic treatment systems. It was done by specifically controlling and monitoring growth of protozoa versus degradation in continuous ...
Antioxidant efficacy of phytochemical extracts from defatted rice bran in in-vitro model emulsions

Renuka Devi, R; Jayalekshmy, A; Arumughan, C (Wiley, 2008)

Defatted rice bran (DRB) is the byproduct of rice bran oil extraction. On HPLC analysis, methanolic extracts prepared from DRB was found to contain oryzanols (OYL), tocols and ferulic acid (FA). Solvent fractionation was ...
Batch fermentation model of propionic acid production by propionibacterium acidipropionici in different carbon sources

Coral, J; Karp, S G; Vandenberghe, Luciana P S; Parada, J L; Pandey, A; Soccol, C R (Springer, 2008)

Propionic acid (PA) is widely used as additive in animal feed and also in the manufacturing of cellulose-based plastics, herbicides, and perfumes. Salts of propionic acid are used as preservative in food. PA is mainly ...
Bioinspired superhydrophobic coatings of carbon nanotubes and linear pi systems based on the "bottom-up" self-assembly approach

Srinivasan, S; Praveen, V K; Robert Philip; Ajayaghosh, A (Wiley, 2008)
Bis(3,5-diiodo-2,4,6-trihydroxyphenyl)squaraine: A novel candidate in photodynamic therapy for skin cancer models in vivo

Gayathri Devi, D; Cibin, T R; Ramaiah, D; Annie, A (Elsevier, 2008)

Photodynamic therapy (PDT) is based on the light-induced activation of a photosensitizer generating highly reactive oxygen species that induce tissue destruction in malignant tissues. The present study was carried out to ...
C-H bond activation through sigma-bond metathesis and agostic interactions: Deactivation pathway of a Grubbs second-generation catalyst

Jomon Mathew; Koga, N; Suresh, C H (American Chemical Society, 2008)

A mechanistic study has been carried out to explore the structural and energetic features leading to the decomposition pathways of a Grubbs second-generation olefin metathesis catalyst using density functional theory. The ...
Ca(4)La(2)Ti(5)O(17): a novel low loss dielectric ceramics in the CaO-La(2)O(3)-TiO(2) system

Rejini, R; Subodh, G; Sebastian, M T (Springer, 2008)

A novel low loss dielectric material Ca(4)La(2)Ti(5)O(17) was prepared by solid state ceramic route. The structure and microstructure of the Ca(4)La(2)Ti(5)O(17) ceramics was investigated using XRD, SEM and EDX techniques. ...
Carbon nanotube triggered self-assembly of oligo(p-phenylene vinylene)s to stable hybrid pi gels

Srinivasan, S; Babu, S S; Praveen, V K; Ajayaghosh, A (Wiley, 2008)
Carbon-Nitrogen bond-forming reactions of diakyl azodicarboxylate: A promsing synthetic strategy

Vijay Nair, G; Biju, A T; Smitha C. Mathew; Babu, B P (Wiley, 2008)

Azodicarboxylates have found applications in electrophilic amination reactions and in pericyclic reactions. The nucleophilic trigger in Mitsunobu reactions, that is, the zwitterion formed from triphenylphosphine and dialkyl ...
Cellulase production under solid-state fermentation by Trichoderma reesei RUT C30: Statistical optimization of process parameters

Mekala, N K; Singhania, R R; Rajeev K Sukumaran; Pandey, A (Springer, 2008)

Sugar cane bagasse was used as substrate for cellulase production using Trichoderma reesei RUT C30, and the culture parameters were optimized for enhancing cellulase yield. The culture parameters, such as incubation ...
Centrifugal casting of functionally graded aluminium matrix composite components

Rajan, T P D; Pillai, R M; Pai, B C (Maney Publishing, 2008)

Centrifugal casting is one of the potential manufacturing techniques used for producing near net shaped components with improved properties. The emergence of new class of functionally graded materials has made it an important ...
CFD modeling of gas-liquid-solid mechanically agitated contactor

Panneerselvam, R; Savithri, S; Surender, G D (Institution of Chemical Engineers/ Elsevier, 2008)

In the present work, CFD simulations have been carried out to study solid suspension in gas-liquid-solid mechanically agitated contactor using Eulerian-Eulerian multifluid approach along with standard k - epsilon turbulence ...
Chemical switch based reusable dual optoelectronic sensor for nitrite

Vishnuvardhan, V; Kala, R; Rao, T P (Elsevier, 2008)

An optical sensor was developed for sensing of nitrite based on the monotonous decrease in absorbance of Rhodamine 6G at 525 nm (the absorbance maximum of dye) with increasing concentration of nitrite. This sensor also ...
Compactin production in solid-state fermentation using orthogonal array method by P. brevicompactum

Shaligram, N S; Singh, S K; Singhal, R S; Szakacs, G; Pandey, A (Elsevier, 2008)

In the present study, compactin production by Penicillium brevicompactum WA 2315 was studied using solid-state fermentation. Initially, various agro-industrial residues were screened as a support and carbon source. The ...

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