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PhD Student

Name: Alsha Subash

In-country Ph.D. Candidate (Deakin India Research Initiative Model)

Student ID: 222013705

Research topic: Electrospun Nanofibre Composites of Biopolymers for Waste Water


Research Domains:

· Green Technology

· Environmental Applications

· Wastewater treatment

· Biopolymers

· Electrospinning

Google Scholar Profile:



1. Alsha Subash, Abina Basanth, Balasubramanian Kandasubramanian (2022) Biodegradable polyphosphazene – hydroxyapatite composites for bone tissue engineering. Int J Polym Mater Polym Biomater 1–19.

Abstract: The venture to fabricate potential and functional bone regeneration, annihilating the health complexities in conventional bone grafting, made Bone tissue engineering (BTE), which facilitates meticulous control of the spatial and temporal dissemination of cells and extracellular matrix (ECM), receive incredible consideration in the past few years. Ascribable to their exceptional properties, polymers have gotten significant attention as one of the prominent classes of biomaterials for BTE. The compatible mechanical properties, biocompatibility,bioactivity, and biodegradability of polyphosphazene/hydroxyapatite composite made them candidates for functional bone regeneration. This review demonstrates the synthesis, properties, and application of polyphosphazenes, hydroxyapatite, and composite biomaterial for BTE.

2. Alsha Subash, Balasubramanian Kandasubramanian (2020) 4D Printing of Shape Memory Polymers. Eur Polym J 134:109771.

Abstract: The desideration to expedite sophisticated intelligence and to have an interdisciplinary accession of new forms of complexities lead to the inauguration of a modern additive manufacturing (AM) technology that adopts computer-aided design (CAD) models. 3D printing with its efficiency in material utility, surface resolution, and fine design triggered the research domain making it applicable from biomedical to electronics, and most conspicuously in biomimetics, and advanced materials for its advantages of amenity and adept fabrication of objects. However, the static and inanimate nature of the 3D printed part and the anisotropic behaviour of the technology acted as the impediment in the 3D printing technology which was annihilated by the 4D printing by adding a temporal dimension to 3D providing vitality to the design using a stimulus to trigger transfiguration in smart materials. Smart materials consisting of hydrogels, ceramics, metals, alloys, and polymers, have the propensity to origami on exposure to specific extramural stimuli, like calefaction, light, moisture, active sources, electromagnetic radiations, and pH ascribed to martensitic transformation or intrinsic elasticity. However, the high stiffness, the dominant recoverable strain (~up to 800%), the ability to trigger their shape recoverability (in bending ~ 93% and tensile ~ 87%), the facile fabrication into tailor-made products, in which some exhibit biodegradability and biocompatibility, make polymers one of the most prominent materials for 4D printing. This review discusses recent advancements in 4D printing, focusing on smart polymers and cognate stimuli response, the compatibility of the material with the 3D printer, applications, and trends of 4D printing of SMP.


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