تصفح حسب المؤلف "Ponnamma, Deepalekshmi"
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Recent Developments on 4D Printings and Applications
Ponnamma, Deepalekshmi; Sai Bhargava Reddy, M.; Maurya, Muni Raj; Kulkarni, Omkar; Paswan, Manikant; Sadasivuni, Kishor Kumar; Nair Geetha, Mithra M. M.; Al-Maadeed, Mariam Ali... more authors ... less authors ( Springer International Publishing , 2022 , Book chapter)The new generation of 3D printing is known as four-dimensional (4D) printing technology that involves the printing of complex geometries with smart materials. The rise of 4D technological developments leads to finding ... -
Reduced graphene oxide filled poly(dimethyl siloxane) based transparent stretchable, and touch-responsive sensors
Ponnamma, Deepalekshmi; Sadasivuni, Kishor Kumar; Cabibihan, John John; Yoon, W. Jong; Kumar, Bijandra ( American Institute of Physics Inc. , 2016 , Article)The ongoing revolution in touch panel technology and electronics demands the need for thin films, which are flexible, stretchable, conductive, and highly touch responsive. In this regard, conductive elastomer nanocomposites ... -
Reduction in piezoelectric voltage generation for the cerium doped nickel ferrite nanoparticles filled PVDF-HFP nanocomposites
Ponnamma, Deepalekshmi; Aljarod, Omar; Parangusan, Hemalatha; Al-Maadeed, Mariam Al Ali ( Elsevier B.V. , 2019 , Article)This paper describes the synthesis of grape cluster shaped nickel ferrite (NiFe 2 O 4 ) and cerium doped nickel ferrite (Ce-NiFe 2 O 4 ) nanoparticles by chemical co-precipitation and their addition to poly(vinylidene ... -
Role of metal oxide nanofibers in water purification
El-Samak, Ali A.; Rahman, Hammadur; Ponnamma, Deepalekshmi; Hassan, Mohammad K.; Zaidi, Syed Javaid; Al-Maadeed, Mariam Al Ali... more authors ... less authors ( Elsevier , 2021 , Book chapter)Water treatment through nanomaterials and nanocomposites is a booming research area, since water resources are of prime importance for human sustainability. Having high permeability, optimum pore size, and specific surface ... -
Sensors in advancing the capabilities of corrosion detection: A review
Reddy, M. Sai Bhargava; Ponnamma, Deepalekshmi; Sadasivuni, Kishor Kumar; Aich, Shampa; Kailasa, Saraswathi; Parangusan, Hemalatha; Ibrahim, Muna; Eldeib, Shady; Shehata, Omar; Ismail, Mohammad; Zarandah, Ranin... more authors ... less authors ( Elsevier B.V. , 2021 , Article Review)Corrosion can cause serious damage, which leads to large economic loss, sometimes combined with environmental pollution, or risk of personnel injuries. Today, corrosion has a far-reaching impact on society and the associated ... -
Smart and Robust Nanocomposite Fibers for Self-Powering
alkhair, Shahad; Ponnamma, Deepalekshmi; Aljanahi, Abdulla; AlNasr, Abdulla ( Qatar University Press , 2020 , Poster)Many of the devices, demands power sources for their continuous and long-term operations, self-powering devices with good flexibility, mechanical robustness, highly efficient energy storage performance and environmental ... -
Solution-processed white graphene-reinforced ferroelectric polymer nanocomposites with improved thermal conductivity and dielectric properties for electronic encapsulation
Deshmukh, Kalim; Ahamed, M. Basheer; Sadasivuni, Kishor Kumar; Ponnamma, Deepalekshmi; Deshmukh, Rajendra R.; Trimukhe, Ajinkya M.; Pasha, S. K. Khadheer; Polu, Anji Reddy; AlMaadeed, Mariam Al-Ali; Chidambaram, K.... more authors ... less authors ( Springer Netherlands , 2017 , Article)The recent surge in graphene research has stimulated interest in the investigation of various two-dimensional (2D) nanomaterials, including 2D boron nitride (BN) nanostructures. Among these, hexagonal boron nitride nanosheets ... -
Spectroscopy of Polymer Nanocomposites
Thomas, Sabu; Rouxel, Didier; Ponnamma, Deepalekshmi ( Elsevier Inc. , 2016 , Book)Spectroscopy of Polymer Nanocomposites covers all aspects of the spectroscopic characterization of polymer nanocomposites. More than 25 spectroscopy characterization techniques - almost all used in materials science - are ... -
Spectroscopy-introducing the advantages and application areas in polymer nanocomposites
Ponnamma, Deepalekshmi; Rouxel, Didier; Thomas, Sabu ( Elsevier Inc. , 2016 , Book chapter)Spectroscopy is an inevitable tool of characterizing polymer nanocomposites. Various spectroscopic techniques unveil the nature of dispersion of nanoparticles within the matrix polymer, the interactions between filler and ... -
Studies on the Mechanical, Morphological and Electrical Properties of Highly Dispersible Graphene Oxide Reinforced Polypyrrole and Polyvinylalcohol Blend Composites
Deshmukh, Kalim; Ahamed, M. Basheer; Sankaran, Sowmya; Pasha, S. K. Khadheer; Sadasivuni, Kishor Kumar; Ponnamma, Deepalekshmi; AlMaadeedd, Mariam Al-Ali... more authors ... less authors ( Elsevier Ltd , 2018 , Conference Paper)In the present study, water soluble polypyrrole (WPPy)/polyvinyl alcohol (PVA)/graphene oxide (GO) composite films were prepared via colloidal blending method at different GO loadings varying from 0 – 3 wt%. The dispersion ... -
Surface functionalization of chitosan as a coating material for orthopaedic applications: A comprehensive review
Kumari, Suman; Tiyyagura, Hanuma Reddy; Pottathara, Yasir Beeran; Sadasivuni, Kishor Kumar; Ponnamma, Deepalekshmi; Douglas, Timothy E.L.; Skirtach, Andre G.; Mohan, M.K.... more authors ... less authors ( Elsevier Ltd , 2021 , Article Review)Metallic implants have dominated the biomedical implant industries for the past century for load-bearing applications, while the polymeric implants have shown great promise for tissue engineering applications. The surface ... -
Surface functionalization of natural lignin isolated from: Aloe barbadensis Miller biomass by atom transfer radical polymerization for enhanced anticancer efficacy
Jeyaraj, Murugaraj; Praphakar, Rajendran Amarnath; Rajendran, Chinnusamy; Ponnamma, Deepalekshmi; Sadasivuni, Kishor Kumar; Munusamy, Murugan A.; Rajan, Mariappan... more authors ... less authors ( Royal Society of Chemistry , 2016 , Article)Lignin (LIG), one of the major natural polymers in the biomass is widely used for various industrial and biomedical applications, mainly in its modified form of grafted lignin. The present study focuses on the isolation ... -
Synergistic effect of vanadium pentoxide and graphene oxide in polyvinyl alcohol for energy storage application
Deshmukh, Kalim; Ahamed, M. Basheer; Deshmukh, Rajendra R.; Khadheer Pasha, S.K.; Sadasivuni, Kishor Kumar; Ponnamma, Deepalekshmi; Chidambaram, K.... more authors ... less authors ( Elsevier Ltd , 2016 , Article)A novel ultra-high-k composite material comprising of polyvinyl alcohol (PVA) as a polymer matrix and vanadium pentoxide (V2O5) and graphene oxide (GO) as fillers have been developed successfully using colloidal processing ... -
The separation of oil/water mixtures by modified melamine and polyurethane foams: A review
Hailan, Sarah M.; Ponnamma, Deepalekshmi; Krupa, Igor ( MDPI , 2021 , Article Review)Melamine (MA) and polyurethane (PU) foams, including both commercial sponges for daily use as well as newly synthesized foams are known for their high sorption ability of both polar and unipolar liquids. From this reason, ... -
White graphene reinforced polypyrrole and poly(vinyl alcohol) blend nanocomposites as chemiresistive sensors for room temperature detection of liquid petroleum gases
Gounder Thangamani, J.; Deshmukh, Kalim; Sadasivuni, Kishor Kumar; Ponnamma, Deepalekshmi; Goutham, Solleti; Venkateswara Rao, K.; Chidambaram, K.; Basheer Ahamed, M.; Nirmala Grace, A.; Faisal, Muhammad; Khadheer Pasha, S. K.... more authors ... less authors ( Springer-Verlag Wien , 2017 , Article)The authors describe the preparation of PVA/WPPy/hBNNP nanocomposite films by solution casting method from poly(vinyl alcohol) (PVA), water soluble polypyrrole (WPPy), and using hexagonal boron nitride nanoparticles (hBNNP) ...