Browsing by Author "Ahmed, N.Y."

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    Assessment of biocompatibility for citric acid crosslinked starch elastomeric films in cell culture applications
    (Nature Research, 2025) Pooja, N.; Ahmed, N.Y.; Mal, S.S.; Bharath, P.A.S.; Zhuo, G.-Y.; Noothalapati, H.; Managuli, V.; Mazumder, N.
    This study investigates the synthesis of potato starch elastomers reinforced with silicon dioxide (SiO2) and citric acid as a crosslinking agent to enhance their mechanical and barrier properties. Surface morphology analysis using optical microscopy revealed that pure potato starch films had uneven surfaces. However, higher SiO2 concentrations increased roughness, while citric acid crosslinked films displayed smoother surfaces overall. Water vapor transmission rates (WVTR) indicated that native starch films were highly hydrophilic, while SiO2 incorporation and citric acid crosslinking significantly reduced WVTR of 17% (30% lower than native film), enhancing the barrier properties. Tensile strength testing revealed that citric acid crosslinking increased the tensile strength by 25%, while SiO2 further reinforced the films but decreased elasticity by 15%. SiO2 had little impact on degradation rates, while citric acid crosslinking delayed microbial growth, extending film longevity by 20%. Biocompatibility assays using SiHa, HT-29, and HEK 293 cell lines revealed that the films had varying degrees of cell confluency. Films with both SiO2 and citric acid showed improved confluency (20% higher) compared to films containing only SiO2. However, citric acid alone resulted in the highest confluency (95% viability), suggesting its significant role in biocompatibility. This eco-friendly approach demonstrates substantial advancements in film properties, offering potential applications in diverse biomedical industries. © The Author(s) 2025.
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    Biocompatiblity of potato starch-based elastomer films for cell culture
    (Optical Society of America, 2023) Ahmed, N.Y.; Pooja, N.; Mal, S.S.; Mazumder, N.
    Novel biodegradable elastomers based on potato starch are synthesized and utilized as cell substrates. The elastomers were characterized in terms of their functional properties. To assess the suitability of th e synthesized elastomers for biomedical applications, studies on cell adhesion and cell viability were carried out. © Optica Publishing Group 2023, © 2023 The Author(s)