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Author: search.filters.author.Lalitha Gnanasekaran

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    Item type:Publication,
    High-performance supercapacitors based on NiMn layered double hydroxides/Ni3S2 nanocomposite
    (Elsevier BV, 2025-04-01)
    Yezeng He
    ;
    Xinfeng Liu
    ;
    Ke He
    ;
    Hesam Kamyab
    ;
    Lalitha Gnanasekaran
    Layered double hydroxide (LDH), an emerging electroactive material, receives significant attention in storage and energy conversion area due to its excellent ion insertion and exchange capacity. Transition metal sulfides with multiple oxidation states and redox reactions maintain high-power density. In this research, NiMn-LDH on transition metal sulfides M − S (M = Ni, Co, Mn, Fe) are synthesized. Of these, NiMn-LDH/Ni3S2 demonstrates excellent electrochemical efficiency. In the three-electrode system, NiMn-LDH/Ni3S2 electrode achieves high specific capacitance of 2028.38 mF cm⁻2 at 1 mA cm⁻2 and excellent cycling stability of 69.53 % retention after 5000 cycles at 10 mA cm⁻2. The device consisting of activated carbon and NiMn-LDH/Ni3S2 exhibits a remarkable energy density of 63.06 Wh kg⁻1 at a power density of 1599.94 W kg⁻1. The NiMn-LDH/Ni3S2 electrode demonstrates an effective pseudo-capacitance performance and holds a great promise for electrodes in capacitive energy storage devices. © 2025 Elsevier B.V.
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    Multifunctional MXenes nanocomposite platforms for biosensing and wearable sensor technologies
    (Springer Science and Business Media LLC, 2025-02-01)
    Ali Mohammad Amani
    ;
    Hesam Kamyab
    ;
    Ehsan Vafa
    ;
    Alireza Jahanbin
    ;
    Milad Abbasi
    MXenes are nanostructures with unique characteristics, such as hydrophilicity, large surface area, strong metallic conductivity, strong ion transport capabilities, biocompatibility, minimal diffusion barrier, and easy functionalization, which make these compounds suitable for bioanalytical applications. These materials are formed of transition metallic nitrides, carbides, or carbonitrides. Owing to their unique properties, MXenes have gained interest in various fields, including sustainable energy generation, fuel cells, supercapacitors, electronics, and catalysis. The composition and layered structure have made MXenes particularly appealing to biosensing applications. They can be used in electrochemical biosensors because of their high conductivity and multilayered architecture, which ensure the retention of activity in immobilized biomolecules. This review highlights the application of MXenes in electrochemical and optical biosensors, identifying future requirements and potential in this sector, particularly in the development of wearable sensors and platforms with integrated biomolecule detection.
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    Innovative cancer therapy: Unleashing the potential of macromolecule-loaded mesoporous bioactive glasses for precision diagnosis and treatment
    (Elsevier BV, 2024-12)
    Ali Mohammad Amani
    ;
    Lobat Tayebi
    ;
    Ehsan Vafa
    ;
    Reza Bazargan-Lari
    ;
    Milad Abbasi
    Cancer continues to pose a formidable threat, claiming millions of lives annually. A beacon of hope in this battle lies in the realm of bioactive glasses, which have undergone a remarkable evolution over the past five decades. Among these, mesoporous bioactive glasses (MBGs) emerge as a dynamic subset endowed with customizable attributes such as high surface area and porosity. While holding immense promise for cancer care, the full clinical potential of MBGs remains largely unexplored. This review delves into the cutting-edge advancements in MBG technology, illuminating their pivotal role in cancer management – spanning from early detection to targeted therapeutic interventions like photothermal and photodynamic treatments. Furthermore, the molecular mechanisms underpinning MBGs’ anticancer properties are elucidated, alongside an exploration of existing limitations in their application. Through this comprehensive synthesis, the significance of MBGs in revolutionizing cancer therapy is underscored, underscoring the urgent need for continued research to unlock their full potential in reshaping the landscape of cancer care.