Browsing by Author "Mishra, Yogendra Kumar"

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    Environmentally sound system for E-waste: Biotechnological perspectives
    (Elsevier, 2019-10-28) Awasthi, Abhishek Kumar; Hasan, Mohammed; Mishra, Yogendra Kumar; Pandey, Akhilesh Kumar; Tiwary, Bhupendra Nath; Kuhad, Ramesh C.; Gupta, Vijai Kumar; Thakur, Vijay Kumar
    The rapid e-waste volume is generating globally. At the same time, different recycling technologies, mainly the mechanical and chemical methods well studied, while the biological method is the most promising approach. Therefore, this article provides a comprehensive information about extracting valuable metals from e-waste. In addition, this article outlines the process and key opportunity for extraction of metals, identifies some of the most critical challenges for e-waste environmentally sound management practices, and opinions on possible solutions for exiting challenges, and emphasis on importance of advanced recycling technologies that can be utilized, in order to minimize the environmental impact causes due to improper recycling of e-waste.
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    Fundamentals and scopes of doped carbon nanotubes towards energy and biosensing applications
    (Elsevier, 2018-05-22) Muhulet, Alexandru; Miculescu, Florin; Voicu, Stefan Ioan; Schütt, Fabian; Thakur, Vijay Kumar; Mishra, Yogendra Kumar
    Since their first allusion, carbon nanotubes have attracted significant research interest, especially with respect to composite manufacturing as a filler material for enhancing their mechanical and electrical properties. Several methods have been developed for modifying the electrical properties of carbon nanotubes such as CNTs wall's carbon atoms substitution with other appropriate atoms including engineering of their outer surfaces by covalent and noncovalent molecules, such as CNTs channel filling and nano-chemical reactions therein. CNTs with tailored electrical conduction open large perspectives for their applicabilities in advanced technologies. Taking into consideration the innovative advantages of pure and hybrid CNTs, in this article we have comprehensively reviewed the latest state-of-art research developments in the direction of different synthesis strategies, structure-property relationships, and advanced applications towards energy storage, supercapacitors, electrodes, catalytic supports, as well as biosensing.
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    Piezoelectic Materials for energy harvesting and sensing applications: roadmap for future smart materials
    (Wiley, 2021-07-13) Mahapatra, Susmriti Das; Mohapatra, Preetam Chandan; Aria, Adrianus Indrat; Christie, Graham; Mishra, Yogendra Kumar; Hofmann, Stephan; Thakur, Vijay Kumar
    Piezoelectric materials are widely referred to as “smart” materials because they can transduce mechanical pressure acting on them to electrical signals and vice versa. They are extensively utilized in harvesting mechanical energy from vibrations, human motion, mechanical loads, etc., and converting them into electrical energy for low power devices. Piezoelectric transduction offers high scalability, simple device designs, and high-power densities compared to electro-magnetic/static and triboelectric transducers. This review aims to give a holistic overview of recent developments in piezoelectric nanostructured materials, polymers, polymer nanocomposites, and piezoelectric films for implementation in energy harvesting. The progress in fabrication techniques, morphology, piezoelectric properties, energy harvesting performance, and underpinning fundamental mechanisms for each class of materials, including polymer nanocomposites using conducting, non-conducting, and hybrid fillers are discussed. The emergent application horizon of piezoelectric energy harvesters particularly for wireless devices and self-powered sensors is highlighted, and the current challenges and future prospects are critically discussed.
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    Status and future scope of plant-based green hydrogels in biomedical engineering
    (Elsevier, 2019-06-12) Mohammadinejad, Reza; Maleki, Hajar; Larrañeta, Eneko; Fajardo, André R.; Bakhshian Nik, Amirala; Shavandi, Amin; Sheikhi, Amir; Ghorbanpour, Mansour; Farokhi, Mehdi; Govindh, Praveen; Cabane, Etienne; Azizi, Susan; Reza Aref, Amir; Mozafari, Masoud; Mehrali, Mehdi; Thomas, Sabu; Mano, João F.; Mishra, Yogendra Kumar; Thakur, Vijay Kumar
    Hydrogels are the most iconic class of soft materials, and since their first report in the literature, they have attracted the attention of uncountable researchers. Over the past two decades, hydrogels have become smart and sophisticated materials with numerous applications. This class of soft materials have been playing a significant role in biomedicine due to their tunable and often programmable properties. Hydrogels from renewable polymers have been popularized in biomedical applications as they are often biocompatible, easily accessible, and inexpensive. The challenge however has been to find an ideal plant-based hydrogel for biomedicine that can mimic critical properties of human tissues in terms of structure, function, and performance. In addition, natural polymers can readily be functionalized to engineer their chemical and physical uproperties pertinent to drug delivery and tissue engineering. Here, the most recent advances in the synthesis, fabrication, and applications of plant-based hydrogels in biomedical engineering are reviewed. We cover essential and updated information about plants as green sources of biopolymers for hydrogel synthesis, general aspects of hydrogels and plant-based hydrogels, and thorough discussion regarding the use of such hydrogels in the biomedical engineering area. Furthermore, this review details the present status of the field and answers several important questions about the potential of plant-based hydrogels in advanced biomedical applications including therapeutics, tissue engineering, wound dressing, and diagnostics.