Browsing by Author "Ponnamma, Deepalekshmi"
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3D architectures of titania nanotubes and graphene with efficient nanosynergy for supercapacitors
Ponnamma, Deepalekshmi; P, Poornima Vijayan; Al-Maadeed, MariamAl Ali ( Elsevier Ltd , 2017 , Article)One dimensional titanium dioxide nanotubes (titania nanotubes or TNT) are grown on the surface of two dimensional graphene sheets by hydrothermal method so that desirable out of plane properties are obtained in the final ... -
A comparative review of natural and synthetic biopolymer composite scaffolds
Reddy, M. Sai Bhargava; Ponnamma, Deepalekshmi; Choudhary, Rajan; Sadasivuni, Kishor Kumar ( MDPI AG , 2021 , Article Review)Tissue engineering (TE) and regenerative medicine integrate information and technology from various fields to restore/replace tissues and damaged organs for medical treatments. To achieve this, scaffolds act as delivery ... -
A Facile Approach to Develop Polyvinyl Alcohol-Based Bio-Triboelectric Nanogenerator Containing Graphene- Doped Zinc Oxide Quantum Dots
Yempally, Swathi; Cabibihan, John John; Ponnamma, Deepalekshmi () ( John Wiley and Sons Inc , 2024 , Article)This article presents an environmentally friendly, low-cost polymer nanocomposite, polyvinyl alcohol/sodium alginate-graphene-zinc oxide (PVA-SA/G-ZnO) based triboelectric nanogenerator by spin coating. ZnO quantum dots ... -
A facile route to synthesis NixFe1-xFe2O4 ferrofluids with optimal rheological and magneto-optical properties
Babukutty, Blessy; Ponnamma, Deepalekshmi; Jose, Jiya; Nair, Swapna S; Thomas, Sabu ( wiley , 2024 , Article)This study presents an easy method for synthesizing ultrafine NixFe1-xFe2O4 nanoparticles with adjustable composition (x = 0-.8), followed by their stabilization into ferrofluids. Structural identification of the crystalline ... -
A Fast Responsive Ultraviolet Sensor from mSILAR-Processed Sn-ZnO
Thomas, Deepu; Vijayalakshmi, K. A.; Sadasivuni, Kishor Kumar; Thomas, Ajith; Ponnamma, Deepalekshmi; Cabibihan, John-John... more authors ... less authors ( Springer New York LLC , 2017 , Article)Microwave-assisted successive ionic layer adsorption and reaction was employed to synthesize Sn-ZnO (tin-doped zinc oxide), and its sensitivity to ultraviolet radiation is compared with zinc oxide (ZnO). The sensing films ... -
A stable porous vessel for photocatalytic degradation of Azocarmine G dye
El-Samak, Ali A.; Ponnamma, Deepalekshmi; Hassan, Mohammad K.; Al-Maadeed, Mariam Al Ali ( Elsevier , 2022 , Article)Porous nanocomposite of polystyrene (PS) is fabricated by non-solvent induced phase separation, and with the addition of ZnO nanomaterials through electrospinning, the different evaporation rates of solvent/non solvent ... -
A versatile route for the fabrication of micro-patterned polylactic-acid (PLA)-based membranes with tailored morphology via breath figure imprinting
Akoumeh, Rayane; Noun, Manale; Ponnamma, Deepalekshmi; Al-Ejji, Maryam; Zadeh, Khadija M.; Hawari, Alaa H.; Song, Kenan; Hassan, Mohammad K.... more authors ... less authors ( Royal Society of Chemistry , 2024 , Article)Breath figure imprinting, based on surface instabilities combined with fast polymer evaporation in a humid environment, enables the creation of micro-patterned membranes with tailored pore sizes. Despite being a simple ... -
Advanced Membrane Technology to Remove Boron from Water and Wastewater: A Comprehensive Study
Al-Ejji, Maryam; Ponnamma, Deepalekshmi; Zadeh, Khadija; Zubair, Mukarram; Yasir, Ahmed; Hassan, Mohamed; Abdelhadi, Noura; Song, Kenan; Hawari, Alaa H.... more authors ... less authors ( American Chemical Society , 2023 , Article Review)The rise in boron demand for global industries causes the anthropogenic release of this element to water streams, deteriorating water quality and challenging ecological sustainability. Stringent water quality standards are ... -
Author Correction: Stretchable Electrospun PVDF-HFP/Co-ZnO Nanofibers as Piezoelectric Nanogenerators (Scientific Reports, (2018), 8, 1, (754), 10.1038/s41598-017-19082-3)
Parangusan, Hemalatha; Ponnamma, Deepalekshmi; Al-Maadeed, Mariam Al Ali ( Nature Research , 2019 , Article)In Figure 5, Co-ZnO was incorrectly given as Ni-ZnO. In addition, the line on the graph for PVDF-HFP was omitted. The correct Figure 5 appears below as Figure 1. (Figure presented.). -
Biocompatible neem gum-modified polyvinyl alcohol composite as dielectric material for flexible energy devices
Kiruthika, Parangusan; Subramaniam, Venkat; babu, Anandha; venkatesh, P. Sundara; Vijayalakshmi, S.; Ponnamma, Deepalekshmi... more authors ... less authors ( Elsevier , 2024 , Article)In our pursuit of a flexible energy storage solution, we have developed biocompatible (bc)-NG/PVA composite polymers by combining neem tree gum (NG) with polyvinyl alcohol (PVA). This innovative bio-inspired approach ... -
Biomimetic 3D Prototyping of Hierarchically Porous Multilayered Membranes for Enhanced Oil-Water Filtration
Kumar, Abhishek Saji; Akoumeh, Rayane; Ramanathan, Arunachalam; Park, JaeWoo; Thippanna, Varunkumar; Patil, Dhanush; Zhu, Yuxiang; Ravichandran, Dharneedar; Thummalapalli, Sri Vaishnavi; Sobczak, M. Taylor; Chambers, Lindsay Bick; Theobald, Taylor G.; Yu, Churan; Sui, Chao; Yang, Libin; Ponnamma, Deepalekshmi; Hassan, Mohammad K.; Al-Ejji, Maryam; Yang, Sui; Song, Kenan... more authors ... less authors ( American Chemical Society , 2025 , Article)This study introduces a biomimetic approach to 3D printing multilayered hierarchical porous membranes (MHMs) using Direct Ink Writing (DIW) technology. Fabricated through a fast layer-by-layer printing process with varying ... -
Carbon dioxide adsorption based on porous materials
Reddy, M. Sai Bhargava; Ponnamma, Deepalekshmi; Sadasivuni, Kishor Kumar; Kumar, Bijandra; Abdullah, Aboubakr M. ( Royal Society of Chemistry , 2021 , Article Review)Global warming due to the high concentration of anthropogenic CO2in the atmosphere is considered one of the world's leading challenges in the 21stcentury as it leads to severe consequences such as climate change, extreme ... -
Carbon dots as versatile nanomaterials in sensing and imaging: Efficiency and beyond
Qureshi, Zawar Alam; Dabash, Hanan; Ponnamma, Deepalekshmi; Abbas, M.K.G. ( Elsevier , 2024 , Article Review)Carbon dots (CDs) have emerged as a versatile and promising carbon-based nanomaterial with exceptional optical properties, including tunable emission wavelengths, high quantum yield, and photostability. CDs are appropriate ... -
Cellulose-inspired approaches to sustainable EMI shielding materials: A comprehensive review
Hassan, Muhammad Widad; Elshazly, Tasneem Mohamed; Ponnamma, Deepalekshmi ( Elsevier , 2024 , Article Review)Electromagnetic induction (EMI) shielding has become essential across various industries to counteract the detrimental impact of EMI on electronic devices and delicate machinery. Traditional EMI shielding materials, ... -
Cerium Oxide Decorated Graphene Nanolayers Filled Polyvinylidene Fluoride Nanofibers as Optical Piezoelectric Sensors
Bader, Nour; Yempally, Swathi; Al-Ashker, Firas; Al-Ejji, Maryam; Ponnamma, Deepalekshmi ( wiley , 2025 , Article)This article introduces the fabrication of optical piezoelectric sensors using cerium oxide (CeO)-decorated graphene nanolayers incorporated into polyvinylidene fluoride hexafluoropropylene (PVDF-HFP) fibers. Electrospinning ... -
A comprehensive review on revalorization of natural rubber latex based foams: Enhancing properties through filler incorporation and surface modifications for multifaceted applications
Parvathi, Pradeep; Sethulekshmi, A.S.; Ponnamma, Deepalekshmi; Saritha, Appukuttan ( Elsevier , 2024 , Article Review)Natural rubber latex foams (NRLF) are cellular porous rubbery materials that are widely recognized for their versatility and environmentally friendly properties. In recent years, researchers have investigated the incorporation ... -
Correction to: Polymer Nanocomposites in Biomedical Engineering
Sadasivuni, Kishor Kumar; Ponnamma, Deepalekshmi; Rajan, Mariappan; Basheer Ahamed, M.; Al-Maadeed, Mariam Ali S.A. ( Springer , 2019 , Book chapter)In the original version of the book, the following belated corrections have been incorporated: The co-editor names ''Basheer Ahmed'' has been changed to ''M. Basheer Ahamed'' and ''Al-Maadeed Mariam Ali S A'' has been ... -
Curing enhancement and network effects in multi-walled carbon nanotube-filled vulcanized natural rubber: evidence for solvent sensing
Ponnamma, Deepalekshmi; Varughese, Konnanilkunnathil Thomas; Al-Maadeed, Mariam Al Ali; Thomas, Sabu ( John Wiley and Sons Ltd , 2017 , Article)Electrically and thermally conductive polymer composites offer great possibilities in various electronic fields because of their low weight and ease of processing. This paper addresses the curing behaviour and network ... -
Date palm fibre filled recycled ternary polymer blend composites with enhanced flame retardancy
Zadeh, Khadija M.; Ponnamma, Deepalekshmi; Al Ali Al-Maadeed, Mariam ( Elsevier Ltd , 2017 , Article)Flammability of recycled polypropylene (PP)/low density polyethylene (LDPE)/high density polyethylene (HDPE) ternary blends containing date palm fibres is investigated in this study. Melt blending is used for the composite ... -
Design, development and techno economic analysis of novel parabolic trough collector for low-temperature water heating applications
Upadhyay, Bhargav H.; Patel, Amitkumar J.; Sadasivuni, Kishor Kumar; Mistry, J.M.; Ramana, P.V.; Panchal, Hitesh; Ponnamma, Deepalekshmi; Essa, F.A.... more authors ... less authors ( Elsevier Ltd , 2021 , Article)The primary objective of this experimentation is to develop and evaluate indigenous PTC capable of producing hot water for low-temperature applications. A new parabolic trough collector is designed; which is easy to ...













