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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    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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    Supercoiled Fibres of Self Sorted DonorAcceptor Stacks: A Turn-Off/Turn-On Platform for Sensing Volatile Aromatic Compounds

    To ensure the comfortable survival of living organisms, detection of different life threatening volatile organic compounds (VOCs) such as biological metabolites and carcinogenic molecules is of prime importance. Herein, we report the use of supercoiled supramolecular polymeric fibres of self-sorted donor–acceptor molecules as “turn-off/turn-on” fluorescent sensors for the detection of carcinogenic VOCs. For this purpose, [...]

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    Self-assembled Hybrid Polyvinylcarbazole…

    A. Aashish, R. Ramakrishnan, J. D. Sudha*,M. Sankaran, Krishnapriya
    Self-assembled Hybrid Polyvinylcarbazole-Titania Nanotubes as an Efficient Photoanode for Solar Energy Harvesting
    This paper presents a novel photoanode system of self-assembled hybrid Polyvinylcarbazole (PVK)-titania nanocomposites (PVTs) using template guided polymerization in a mixed phase of rutile – anatase titania nanotubes. Mixed crystalline phase of titania was prepared by [...]

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    Facile strategy for the fabrication of efficient nonvolatile…

    Rajaraman Ramakrishnan, K. B. Jinesh, Sudha J. Devaki*, and Manoj Raama Varma
    Facile strategy for the fabrication of efficient nonvolatile bistable memory devices based on polyvinylcarbazole-zinc oxide
    This paper describes the development of polyvinyl carbazole- ZnO hybrid nanocomposites (PVZ) comprising electron donor carbazole moiety (p-type) and electron acceptor zinc oxide (n-type) by a facile strategy and demonstrated [...]

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    C3N4- ZnS Composite Interfaces as Heterojunctions…

    P. Suyana, Sneha K. R., Balagopal N. Nair, Venugopal Karunakaran, A. Peer Mohamed, K. G. K. Warrier and U. S. Hareesh

    C3N4- ZnS Composite Interfaces as Heterojunctions for Sun Light Induced Multifunctional Photocatalytic Applications
    Herein, we report a facile one pot synthetic protocol for the creation of C3N4–ZnS composite interfaces by the co-pyrolysis of a precursor mix [...]

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    Processing of thermally stable 3D hierarchical…

    Minju Thomas, Balagopal N. Nair, G. M. Anilkumarc, A. Peer Mohamed, K.G.K. Warrier and U.S. Hareesh*

    Processing of thermally stable 3D hierarchical ZIF-8@ZnO structures and their CO2 adsorption studies
    Core-shell hybrid structures of ZnO-Zeolitic Imidazolate Framework-8 (ZIF@ZnO) were obtained by the solvothermal treatment of ZnO hierarchical structures having an average cluster size of ~3 μm and surface [...]

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    Hydrophobic and Metallophobic Surfaces: Highly Stable…

    Sasidharan Sankar, Balagopal N. Nair, Takehiro Suzuki, Gopinathan M. Anilkumar,Moothetty Padmanabhan, Unnikrishnan Nair S. Hareesh* & Krishna G. Warrier*

    Hydrophobic and Metallophobic Surfaces: Highly Stable Non-wetting Inorganic Surfaces Based on Lanthanum Phosphate Nanorods
    Metal oxides, in general, are known to exhibit significant wettability towards water molecules because of the high feasibility of synergetic hydrogen-bonding interactions possible at [...]

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    Nanostructured Semiconducting PEDOT−TiO2/ZnO…

    Rajaraman Ramakrishnan,Sudha J. Devaki*,A. Aashish, Senoy Thomas, Manoj Raama Varma, Najiya KPP

    Nanostructured Semiconducting PEDOT−TiO2/ZnO Hybrid Composites for Nanodevice Applications
    In this paper, we have developed a simple strategy for the preparation of hybrid nanocomposites of poly(3,4-ethylenedioxythiophene)–TiO2/ZnO (PZT) and demonstrated its application in a thermoelectric device. Hierarchical hetero-nanostructured TiO2/ZnO (ZTO) was prepared by a facile sol–gel process [...]

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