تصفح حسب المؤلف "Ponnamma, Deepalekshmi"
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Designing dual phase sensing materials from polyaniline filled styrene-isoprene-styrene composites
Sadasivuni, Kishor Kumar; Ponnamma, Deepalekshmi; Kasak, Peter; Krupa, Igor; Al-Maadeed, Mariam Ali S.A. ( Elsevier Ltd , 2014 , Article)The demand for developing oil detectors is ever increasing since the cleanup and recovery from oil spill usually take long time. Here we propose oil sensors made of polyaniline (PANI) filled poly(styrene-isoprene-styrene) ... -
Development of flexible PVDF/ BaTiO3-MoS2 polymer nanocomposites for energy harvesting and gas sensing applications
Parangusan, Hemalatha; Al-Sowaidi, Dana; Elhadrami, El Hassan; Ponnamma, Deepalekshmi; Bhadra, Jolly ( Springer Nature , 2024 , Article)The need for flexible and wearable devices is quite great in the modern era of advanced electronics and the Internet of Things (IoT). Here, we present a poly(vinylidene fluoride) (PVDF)/Barium Titanate–Molybdenum Disulfide ... -
Electrospun Polysulfone Hybrid Nanocomposite Fibers as Membrane for Separating Oil/Water Emulsion
Ponnamma, Deepalekshmi; Elgawady, Yara; Hassan, Mohamed K.; Adham, Samer; Al-Maas, Mashael; Alamgir, Karim; Al-Maadeed, Mariam Al Ali... more authors ... less authors ( Springer Nature , 2023 , Article)Commercial polymer membranes are largely utilized to separate oil/water mixtures; however, membrane fouling, flux decline, and short lifetime often inhibit their high performance. In order to resolve these drawbacks of the ... -
Laser Induced Periodic Surface Structures on Nano Metal Oxide filled Polyvinylidene Fluoride Nanocomposites
Ponnamma, Deepalekshmi; Sivakumar, Velautham; Popelka, Anton; Hussein, Yasser H. A.; Al-Maadeed, Mariam Al Ali ( Elsevier , 2018 , Article)The ability of polarized pulsed laser in surface modification of substrate surfaces without thermally destroying them is a well-established concept of scientific procedure. In this work, we report the laser induced surface ... -
Production of Biodiesel from Soybean Oil in Less Time and at Low Temperature
Choudhary, Rajan; Kumar, Anuj; Ellapani, Vijay Nag; Trinayan, Baruah; Loganathan, Muruganandam; Ravy, Lakshmi; Vijayaparthasarathi, Vijayakumar; Baburao, Amit Mahindrakar; Shanthakumar, Subramaniam; Ponnamma, Deepalekshmi; Sadasivuni, Kishor Kumar; Swamiappan, Sasikumar... more authors ... less authors ( Asian Publication Corporation , 2022 , Article)The heterogeneous catalyst plays an important role in the production of biodiesel at industrial level. In present work, the utilization of wollastonite as a heterogeneous catalyst is attempted to explore its non-biomedical ...