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Studies on effect of temperature on carbonization of silk (Bombyx mori) and its application as proximity sensor

Jain, S and Prajwal, RV and Vedavyas, V and Vishwas, S and Achutharao, G (2023) Studies on effect of temperature on carbonization of silk (Bombyx mori) and its application as proximity sensor. In: Carbon Trends, 13 .

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Official URL: https://doi.org/10.1016/j.cartre.2023.100314


Silk, a pyroprotein with its unique micro-structural features comprises of soft amorphous Formula presented regions containing compact Formula presented-sheet crystals resulting in its potent characteristics. Annealing in inert atmosphere causes carbonization followed by graphitization of these stable Formula presented-sheet-rich silk fibroins (SFs). Here we carry out systematic studies of annealed silk fibroin (Bombyx mori) in the temperature range of 200-1200 °C by various analytical techniques. Herein the structural changes in SFs at different annealing temperature have been discussed using Raman, FTIR, XPS, XAES, SEM, XRD characterization techniques. Notably XPS and XAES studies were executed to examine the influence of sp2/sp3 ratio and the presence of hetero-atom on D-parameter value in silk Formula presented-sheet material on gradual increase in annealing temperature. The mechanical properties of SFs were measured using UTM. The application of carbonized silk fibroins (CSF) as a proximity sensor is also investigated and proposed as a probable active material. © 2023 The Author(s)

Item Type: Journal Article
Publication: Carbon Trends
Publisher: Elsevier Ltd
Additional Information: The copyright for this article belongs to author.
Keywords: Animals; Annealing; Carbonization; Graphitization; Pyrolytic graphite, Annealing temperatures; Bombyx mori; Carbonisation; D-parameter; Effects of temperature; ITS applications; Micro-structural; Silk fibroin; XAES; �-sheet, X ray photoelectron spectroscopy
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited: 29 Feb 2024 05:56
Last Modified: 29 Feb 2024 05:56
URI: https://eprints.iisc.ac.in/id/eprint/83729

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