Faculty Publications
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Item Fundamentals of multifunctional nanostructured coatings with recent updates(Elsevier, 2025) Poddar, M.K.; Soman, V.This chapter provides a comprehensive overview of nanocoatings and their diverse applications. Nanocoatings are characterized by their nanoscale dimensions, typically ranging between 1 and 100nm and high-surface-to-volume ratios. They showcase remarkable properties such as protection against corrosion, wear, microbial action, and UV radiation and provide superior optical, electrical, and surface properties. Compared to the conventional coatings, the synthesis of nanocoating involves very little use of volatile organic compounds. Nanocoating is fabricated using synthesis techniques like chemical vapor deposition, electrodeposition, and Particle Vapor Deposition, etc. This chapter also discusses different types of nanocoatings reported in scientific literature, each with many applications. Ceramic-based nanocoatings, which are oxide-based ceramics like alumina (Al2O3), zirconia (ZrO2), and titania (TiO2), etc, are highlighted for their remarkable hardness and suitability for wear and corrosion-prone applications. Also, the applicability of polymer and metal matrix-based nanocoatings in packaging, automotive, thermal protection, and solar energy harnessing is emphasized; these nanocoatings find extensive potential in industries such as aerospace, transportation, and manufacturing, where superior mechanical properties and wear resistance are inevitable. To bring nanocoatings to a large scale in the future, it is essential to adapt cost-effective strategies and evaluate the adhesion between substrate and coating. Mathematic models may be developed to simulate various properties. Nature-inspired models could efficiently design nanocoatings, such as the lotus leaf effect. We also address some of the environmental challenges associated with nanocoating and emphasize the importance of considering factors like size, capping agent, and shape to mitigate such challenges. Nanocoatings offer great potential in enhancing material performance, protecting surfaces, and addressing industry challenges. © 2025 Elsevier Ltd. All rights are reserved.Item Effects of green manufacturing and technological innovations on sustainable development(Elsevier, 2025) Poddar, M.K.; Soman, V.; Narzari, R.This chapter offers a concise exploration of the potent link between green manufacturing technologies and the sustainable development goals (SDGs). It highlights how eco-friendly practices in the synthesis of nanoparticles (NPs) hold the potential to drive sustainable development. Through the adoption of green methods such as plant-based NP synthesis, microorganism and microalgae utilization, we elucidate their pivotal role in advancing SDGs related to clean energy, responsible consumption, healthcare, clean water, and the conservation of the ecosystem. The environmental hazards caused as a result of conventional synthesis methods of NPs have also been discussed in brief. This chapter also throws light on the versatile applications of NPs, from renewable energy solutions to sustainable materials. It serves as a realistic guide that emphasizes the real-world impact of green manufacturing and innovation in molding a sustainable future. © 2025 Elsevier Inc. All rights reserved.Item Ultrasound assisted synthesis of polymer nanocomposites: a review(Springer Science and Business Media B.V., 2023) Soman, V.; Vishwakarma, K.; Poddar, M.K.The potential of ultrasonication as a technique to enhance the production of polymer nanocomposites is examined in this review paper. Polymer nanocomposites have been widely employed in recent years because of their remarkable mechanical, electrical, and optical properties. The article focuses on the application of several synthesis techniques, including solvent casting, 3D printing, electrospinning, and template synthesis. It has been established that uniformly dispersing nanoparticles inside the polymer matrix during ultrasonication can greatly improve the quality of nanocomposites. Recent research has shown that nanocomposites made using ultrasonication have improved mechanical and thermal stability. However, scaling up these techniques remains a challenge and requires further research. © 2023, The Polymer Society, Taipei.Item Biobased plastics and their nanocomposites: emerging trends in active and intelligent food packaging applications(Springer, 2025) Sahota, S.; Soman, V.; Thakur, D.; Poddar, M.K.Bio-based polymers have gained huge attention in the recent past for their application in various domains, especially food packaging. The petroleum-based polymers have a significant negative impact on the ecosystem owing to their non-biodegradability. Therefore, a sustainable yet efficient alternative is required which is both safe and non-toxic. Food packaging technologies with the latest innovations are promoting active and smart packaging applications which promise quick, safe and efficient ways to monitor the quality of stored foods. These materials are being explored in applications such as antimicrobial wraps, moisture barrier coatings, biodegradable trays, and oxygen-scavenging films. Nanotechnology has emerged as a superior alternative as it can enhance food protection while reducing the raw material requirement and waste generation. The present review focuses on the recent developments in active and smart food packaging with special emphasis on bio-based polymer nanocomposites. The various polymer nanocomposites, their properties and safety concerns with respect to food packaging are summarized in this review article besides providing prospects for the current research area. © Association of Food Scientists & Technologists (India) 2025.Item Development of hybrid chitosan/zinc oxide/graphene oxide nanocomposites for potential food packaging application(Sustainable Building Research Center, 2023) Kanted, D.; Soman, V.; Sahota, S.; Poddar, M.K.Novel food packaging materials are becoming increasingly necessary and extensive research is underway worldwide towards developing environmentally friendly and bio-based polymers. Among various biopolymers, chitosan is the noticeable and industrially viable food packaging material and is the second most naturally available biopolymer after cellulose. This study is based on the reinforcing hybrid nanomaterials of zinc and graphene oxides into the chitosan matrix to produce a bio-based food packaging material with improved antimicrobial properties, high water resistance and thermally stable hybrid chitosan/ZnO/GO nanocomposites. Various characterization techniques such as Raman, FTIR, XRD and FE-SEM confirmed the preparation of nanofillers and their successful encapsulation into the chitosan matrix. The thermal analysis results confirmed a marked rise of 46.5 and 62.1°C at T25% and T50% respectively of hybrid nanocomposites as compared to neat chitosan. Further, the DTG analysis showed there was a significant rise of 19°C in the maximum degradation temperature for hybrid chitosan/ZnO/GO nanocomposites as compared to neat chitosan. The water vapor permeability of hybrid nanocomposites was reported at a minimum of 1.04 g.mm/m2.h.kPa against the neat chitosan of 2.22 g.mm/m2.h.kPa which confirmed the nanocomposites with improved water resistance. The antimicrobial property tested in presence of Bacillus subtilis (gram-positive bacterium) was reported maximum for hybrid chitosan/ZnO/GO nanocomposites with the highest inhibition zone of 12 mm as compared to the inhibition zone of neat chitosan, chitosan/GO, and chitosan/ZnO of 5 and 10 mm respectively. The increase in the above properties of the hybrid nanocomposites is attributed to the combined effect of hybrid nanofillers as compared to the nanocomposites with the use of single nanofillers. © International Journal of Sustainable Building Technology and Urban Development.