2012: Recent submissions

Now showing items 61-80 of 169

Modulation of adipogenesis and glucose uptake by Curcuma longa extract in 3T3L1 and L6 cell lines - An in vitro study

Prathapan, A; Mahesh, S K; Lekshmi, P C; Raghu, K G; Nirmala Menon, A (Elsevier, 2012)

Objective: To evaluate the effects of ethyl acetate extract of Curcuma longa of glucose uptake and adipogenesis in cell line models. Methods: We used 3 Ta3gLa1i nasntd m Lo6d cuelalltsi otno iwnavse sdtoignaet ew cityhto ...
Aza-BODIPY derivatives: Enhanced quantum yields of triplet excited states and the generation of singlet oxygen and their role as facile sustainable photooxygenation catalysts

Adarsh, N; Shanmugasundaram, M; Rekha, R A; Ramaiah, D (Wiley, 2012)

A new series of aza-BODIPY derivatives (4a–4c, 5a,c, and 6b,c) were synthesized and their excited-state properties, such as their triplet excited state and the yield of singletoxygen generation, were tuned by substituting ...
Antidiabetic and antioxidant potentials of spent turmeric oleoresin, a by-product from curcumin production industry

Nampoothiri, S V; Lekshmi, P C; Venugopalan, V V; Nirmala Menon, A (Elsevier, 2012)

To investigate the antidiabetic and antioxidant activity of spent turmeric oleoresin(STO). Methods: Antidiabetic activity of STO evaluated by α- amylase and α enzyme inhibition assays. The antioxidant capacity studied by ...
Laser immunotherapy with gold nanorods causes selective killing of tumour cells

Rejiya, C S; Jatish Kumar; Raji, V; Vibin, M; Annie Abraham (Elsevier, 2012-02)

Therapeutic approaches that exploit nanoparticles to deliver drugs selectively to cancer cells are currently considered one of the most promising avenues in the area of cancer therapeutics. Recently, gold nanorods (AuNRs) ...
Nanostructured polyaniline-polytitanate-clay composite for photocatalytic applications: Preparation and properties

Ramakrishnan, R; Sudha, J D; Reena, V L (Royal Society of Chemistry, 2012)

Nanostructured polyaniline-polytitanate-clay composite (PPTC) was prepared by the polymerization of anilinium hydrochloride in a dispersion of polytitanate functionalized clay at room temperature.Modified clay-polytitanate ...
Fabrication and characterization of rhodamine 6G entrapped sol–gel film test strip for virtually specific and sensitive sensing of nitrite

Dhanya, S; Jaisy Joy; Prasada Rao, T (Elsevier, 2012-10)

A test strip sensor was developed for nitrite by the entrapment of rhodamine 6G in sol–gel film. Evidence for successful fabrication of the test strip is provided by characterizations using UV–visible spectrophotometry(UV–vis), ...
Key role of solvent type in organogelation

Dasgupta, D; Thierry, A; Rochas, C; Ajayaghosh, A; Guenet, J M (Royal Society of Chemistry, 2012)

In this paper we again assess the role played by the solvent type in the organogelation process of photo/ electroactive oligo (para-phenylene vinylene) (OPV) molecules . In this aim we have investigated gelation in benzyl ...
Critical behavior and magnetocaloric effect in La0.67Ca0.33Mn1 xCrxO3 (x ¼ 0.1, 0.25)

Nisha, P; Savitha Pillai, S; Manoj Raama Varma; Suresh, K G (Elsevier, 2012-01)

Universal behavior of the magnetocaloric effect along with structural and critical exponent analysis in mixed manganite La0.67Ca0.33Mn1 xCrxO3 (x ¼ 0.1, 0.25), [LCMCr0.1 and LCMCr0.25] exhibiting second order phase transition ...
Heteroaromatic donors in donor–acceptor–donor based fluorophores facilitate zinc ion sensing and cell imaging

Sreejith, S; Divya, K P; Jayamurthy, P; Jomon Mathew; Anupama, V N; Divya, S P; Anees, P; Ajayaghosh, A (Royal Society of Chemistry, 2012)

The excited state intra molecular charge transfer (ICT) property of fluorophores has been extensively used for the design of fluorescent chemosensors. Herein, we report the synthesis and properties of three donor–π-acce ...
Characterization of leucine amino peptidase from Streptomyces gedanensis and its applications for protein hydrolysis

Raji, R; Dhar, K S; Nampoothiri, K M; Pandey, A (Elsevier, 2012)

The aim of this work was to purify and characterize the extra-cellular leucine amino peptidase (LAP)from Streptomyces gedanensis and also study its applications for protein hydrolysis. The enzyme was purified to homogeneity ...
Copper quantum cluster-polypyrrole composite film based zero current chronopotentiometric sensor for glutathione

Saumya Varghese; Prasada Rao, T (Royal Society of Chemistry, 2012-07)

We report, for the first time, a potentiostatically deposited copper quantum cluster (CuQC) and CuQCpolypyrrole composite film modified copper disc electrode prepared under the seemingly unlikely conditions of deposition ...
Synthesis and optical properties of Ce0.95Pr0.05 xMxO2 (M = Mn, Si) as potential ecological red pigments for coloration of plastics

Sandhya Kumari, L; Prabhakar Rao, P; Sameera, S; Peter Koshy (Elsevier, 2012-07)

Ecological red pigments Ce0.95Pr0.05 xMxO2 (M = Mn, Si) have been synthesized by conventional solid-state route and characterized by X-ray diffractometer, scanning electron microscope and UV–vis spectroscopy. Mn4+/Si4+ was ...
Probiotic fermented foods for health benefits

Divya, J B; Varsha, K K; Nampoothiri, K M; Bindhumol, I; Pandey, A (Wiley-VCH, 2012)

The history of fermented foods used by humans can be traced back to centuries. The medicinal as well as flavor enhancing properties of fermented foods are mainly due to the presence of bacteria known as probiotics. ...
A novel aqueous route to fabricate ultrasmall monodisperse lipophilic cerium oxide nanoparticles

Sreeremya, T S; Thulasi, K M; Asha Krishnan; Ghosh, S K (American Chemical Society, 2012-01-11)

Ultrasmall monodisperse 2.3 nm CeO2 nanoparticles have been synthesized by simple ammonia precipitation of cerium nitrate in a mixed glycol water solvent and phase transferred into apolar solvents. Cerium oxide crystal ...
Hydrophobic, photoactive Titania–alumina nanocrystallites and coatings by an aqueous sol–gel process

Smitha, V S; Baiju, K V; Perumal, P; Ghosh, S K; Warrier, K G K (Wiley, 2012-01)

Hydrophobic coatings of titania–alumina nanocrystallites showing enhanced photocatalytic activity under sunlight were synthesized by an aqueous sol–gel route from titanyl sulfate. The influence of the addition of alumina ...
Kinetic and equilibrium profiles of adsorptive recovery of thorium(IV) from aqueous solutions using poly(methacrylic acid) grafted cellulose/bentonite superabsorbent composite

Anirudhan, T S; Suchithra, P S; Senan, P; Tharun, A R (American Chemical Society, 2012-04-04)

The removal and recovery of thorium(IV) [Th(IV)] ions from aqueous solutions were investigated using poly(methacrylic acid)-grafted-cellulose/bentonite (PMAA-g-Cell/Bent) superabsorbent composite through batch adsorption ...
Sesquiterpene lactones isolated from elephantopus scaber L. inhibits human lymphocyte proliferation and the growth of tumour cell lines and induces apoptosis in vitro

Geetha, B S; Mangalam S Nair; Latha, P G; Remani, P (Hindawi Publishing Corporation, 2012)

This study was designed to isolate the compounds responsible for the cytotoxic properties of South Indian Elephantopus scaber L. and further investigate their effects on quiescent and proliferating cells. Bioassay-guided ...
Molecular logic gates: Recent advances and perspectves

Sreejith, S; Ajayaghosh, A (NISCAIR, 2012-02)

The capacity and miniaturization of information storage and processing technology are rapidly approaching a limit.alternative materials and operating principles for the elaboration and communication of data in electronic ...
Quantification of the trans influence in hypervalent iodine complexes

Sajith, P K; Suresh, C H (American Chemical Society, 2012-01-16)

The trans influence of various X ligands in hypervalent iodine(III) complexes of the type CF3[I(X)Cl]has been quantified using the trans I−Cl bond length (dX), the electron density ρ(r) at the (3, −1) bond critical point ...
HPTLC and reverse phase HPLC methods for the simultaneous quantification and in vitro screening of antioxidant potential of isolated sesquiterpenoids from the rhizomes of cyperus rotundus

Priya Rani, M; Padmakumari Amma, K P (Elsevier, 2012)

Three sesquiterpenoids solavetivone, aristolone and nootkatone were isolated from the acetone extract of Cyperus rotundus by silica gel column chromatography and identified by spectral studies. Solavetivone has been ...

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