CSIR – National Institute for Interdisciplinary Science and Technology (NIIST)

Council of Scientific & Industrial Research (CSIR), Govt.Of India Thiruvananthapuram.

Research Highlights

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    BF3•Et2O mediated one-step synthesis of N -substituted-1,2-dihydropyridines, indenopyridines and 5,6-dihydroisoquinolines

    C. T. Fathimath Salfeena, K. T. Ashithaa, and B. S. Sasidhar*
    A simple and efficient one-pot synthesis of N-substituted-1,2-dihydropyridines, indenopyridines and 5,6-dihydroisoquinolines by a BF3•Et2O mediated novel methodology, from easily available α,β-unsaturated ketones/arylidene ketones, phenyl acetylenes and substituted nitriles, has been described. This novel annulation provides quick access to complex polycyclic frameworks with an excellent substrate [...]

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    Graphene Oxide Sheathed ZIF 8 Microcrystals: Engineered Precursors of Nitrogen-doped Porous Carbon for Efficient Oxygen Reduction Reaction (ORR) Electrocatalysis

    Minju Thomas, Rajith Illathvalappil, Sreekumar Kurungot, Balagopal N. Nair,
    Abdul Azeez Peer Mohamed, Gopinathan M. Anilkumar*, Takeo Yamaguchi, and
    U. S. Hareesh*
    Nitrogen containing mesoporous carbon obtained by the pyrolysis of graphene oxide (GO) wrapped ZIF-8 (Zeolitic Imidazolate Frameworks-8) micro crystals is demonstrated to be an efficient catalyst for the oxygen reduction reaction (ORR). ZIF-8 synthesis in the [...]

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    Morphologically & compositionaly tuned lithium Silicate nanorods as high performance carbon dioxide sorbents

    P. V. Subha,Balagopal N. Nair*, A. Peer Mohamed, G. M. Anilkumar, K. G. K. Warrier, T. Yamaguchi and U. S. Hareesh*
    The effective capturing of carbon dioxide using regenarable high capacity sorbents is a prerequisite for industrial applications aiming CO2 capture and sequestration. The removal of CO2 directly from the chemical reaction environments at high temperature [...]

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    TEMPO Oxidized Nanocellulose Fiber Directed Stable Aqueous Suspension of Plasmonic Flowerlike Silver Nanoconstruct for UltraTrace Detection of Analytes

    Kallayi Nabeela, Reny Thankam Thomas, Jyothi B Nair, Kaustabh Kumar Maiti, Krishna Gopa Kumar Warrier, and Saju Pillai*

    ACS Appl. Mater. Interfaces,
    Just Accepted Manuscript • http://dx.doi.org/10.1021/acsami.6b07295 • Publication Date (Web): 06 Oct 2016
    Synthesis of shape-tuned silver (Ag) nanostructures with high plasmon characteristics has drawn significant importance in in-vitro diagnostic applications. Herein, we report a [...]

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    Formation of Coaxial Nanocables with Amplified Supramolecular Chirality through an Interaction between Carbon Nanotubes and a Chiral π-Gelator

    In an attempt to gather experimental evidence for the
    influence of carbon allotropes on supramolecular chirality, we
    found that carbon nanotubes (CNTs) facilitate amplification of
    the molecular chirality of a p-gelator (MC-OPV) to supramolecular
    helicity at a concentration much lower than that
    required for intermolecular interaction. For example, at
    a concentration 1.8×10¢4m, MC-OPV did not exhibit a CD
    signal; however, the addition [...]

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    A π-gel scaffold for assembling fullerene to photoconducting supramolecular rods

    Nonequilibrium self-assembly of molecules holds a huge prospect as a tool for obtaining new-generation materials for future applications. Crystallization of neutral molecules within a supramolecular gel matrix is one example in which two nonequilibrium processes occur orthogonal to each other. On the other hand, electronically interacting donor-acceptor two-component systems are expected to form phase-miscible hybrid [...]

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    Tweaking the Organization of Liquid Crystallinity and Molecular Gelation in Cholesterol Tagged Cardanol by Self-Assembly

    Neethu K. Sadanandhan, Sarojam Sivakala, and Sudha J. Devaki*
    This paper describes the effect of unsaturation, solvent, concentration
    and temperature on the specific modes of packing
    and the formation of supramolecular architectures in cholesterol
    tagged cardanol, 3-pentadecyl phenol. Influences were investigated
    using various microscopic techniques, UV-Vis spectroscopy,
    emission spectroscopy, Circular Dichroism (CD)
    spectroscopy, X-Ray Diffraction (XRD) and rheometry. Results
    revealed that the driving [...]

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    High Performing Biobased Ionic Liquid Crystal Electrolytes for Supercapacitors

    Renjith Sasi, Sujatha Sarojam,and Sudha J. Devaki*
    Production and storage of energy in a highly efficient and
    environmentally sustainable way is a demand of the current century to
    meet the growing global energy requirement. Design and development
    of novel materials and processes that allow precise control over the
    electrochemical behavior and conductivity of electrolytes is necessary for
    acquiring such targets. Development [...]

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    Real time monitoring of aminothiol level in blood using a near-infrared dye assisted deep tissue fluorescence and photoacoustic bimodal imaging

    The development of molecular probes for the detection and imaging of biological thiols is a major step forward diagnosing various types of diseases. Previously reported thiol imaging strategies were mainly based on a single mode of imaging with a limited application in vivo. In this work, we introduced an unsymmetrical near-infrared (NIR) squaraine dye (USq) [...]

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    A Three-Photon Active Organic Fluorophore for Deep Tissue Ratiometric Imaging of Intracellular Divalent Zinc

    Deep tissue bioimaging with three-photon (3P) excitation using near-infrared (NIR) light in the second IR window (1.0–1.4 μm) could provide high resolution images with an improved signal-to-noise ratio. Herein, we report a photostable and nontoxic 3P excitable donor-π-acceptor system (GMP) having 3P cross-section (σ3) of 1.78×10−80 cm6 s2 photon−2 and action cross-section (σ3η3) of 2.31×10−81 cm6 s2 photon−2, which [...]

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