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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
(a) Spectra of CAB@Ferria recorded at different temperatures (from 30 to 90 °C with a step of 15 °C) in the region of Amide I and II vibrations. (b) Spectrum of CAB@Ferria recorded at 30 °C (black curve); spectrum of CAB obtained at 30 °C after cooling from 90 °C (red curve).