Conference Papers

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    Structure and rheology of chitosan-nanohydroxyapatite composite hydrogel for soft tissue regeneration
    (American Institute of Physics Inc. subs@aip.org, 2020) Kumar, B.Y.S.; Isloor, A.M.; Periasamy, K.; Kumar, G.C.M.
    Chitosan (CS) hydrogels show desirable characteristics to use a soft tissue implants due to its biocompatibility, biodegradability and antimicrobial characteristics. However, the structural stability hinders its application in vivo. In the present work nanohydroxyapatite (HAp) was reinforced with chitosan hydrogel and to develop chitosan-hydroxyapatite (CS-HAp) composite hydrogel. The nanohydroxyapatite modifies the hydrogel network by promoting the secondary hydrogen bonds thereby enhances the mechanical stiffness. The elastic modulus could reach 10 kPa which is necessary for the proposed application. Overall, chitosan-hydroxyapatite composite hydrogels are the promising implant materials for next-generation soft tissue regeneration. © 2020 Author(s).
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    A novel cross-linked PVA-Chitosan composite membrane for heavy metal filtration applications
    (Elsevier Ltd, 2022) Deekshitha, K.; Rao, M.S.; Rebello, N.; Ramaprasad, A.T.; Arasalike, A.; Pinto, R.
    A novel glutaraldehyde cross-linked Chitosan-PVA (GCP) polymer composite membrane is used to create a water filtration device. The GCP polymer membrane is synthesised using the solution casting process. GCP membranes are characterised using different techniques. The results showed that this filtration unit developed using GCP membrane is effective in reducing the Lead, Cadmium, Sodium and Iron content by 99.32%, 98.1, 88.21% and 78.9% respectively. The creation of nano-pores in GCP membrane, the adsorbent property of GCP and the thermal and chemical stability of GCP are the key factors leading to high performance filtration of major metal contaminants in ground water. © 2022