Top-down Approach to Produce Protein Functionalized and Highly Thermally Stable Cellulose Fibrils

Biomacromolecules
Franck QueroMarcos Flores

Abstract

Protein-functionalized cellulose fibrils, having various amounts of covalently bonded proteins at their surface, were successfully extracted from the tunic of Pyura chilensis tunicates using successive alkaline extractions. Pure cellulose fibrils were also obtained by further bleaching and were used as reference material. Extraction yields of protein-functionalized cellulose fibrils were within the range of 62-76% by weight based on the dry initial tunic powder. Fourier-transform infrared and Raman spectroscopy confirmed the preservation of residual protein at the surface of cellulose fibrils, which was then quantified by X-ray photoelectron spectroscopy. The protein-functionalized cellulose fibrils were found to have relatively high crystallinity and their cellulose I crystalline structure was preserved upon applying alkaline treatments. The extracted cellulosic materials were found to be constituted of fibrils having a ribbon-like morphology with widths ranging from ∼30 nm up to ∼400 nm. These protein-functionalized cellulose fibrils were found to have outstanding thermal stability with one of them having onset and peak degradation temperatures of ∼350 and 374 °C, respectively. These values were found to be 24 and 41 °C highe...Continue Reading

References

Aug 12, 2003·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Robert WithnallLuiz F C de Oliveira
Mar 15, 2005·Biomacromolecules·Adriana SturcováStephen J Eichhorn
Mar 9, 2007·Biomacromolecules·Otto van den BergChristoph Weder
Apr 21, 2007·Biomacromolecules·Federica RusminiJan Feijen
May 24, 2008·Biomacromolecules·Marielle HenrikssonTakashi Nishino
Feb 23, 2010·Biomacromolecules·Rafeadah RusliStephen J Eichhorn
Apr 29, 2010·ACS Applied Materials & Interfaces·Liming Tang, Christoph Weder
May 14, 2011·Chemical Society Reviews·Robert J MoonJeff Youngblood
Sep 6, 2011·Biomacromolecules·Houssine SehaquiLars A Berglund
Dec 10, 2013·Chemical Society Reviews·Youssef Habibi
Nov 5, 2014·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Jan JehličkaAharon Oren
Dec 27, 2017·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·S J EichhornA H Windle
Aug 1, 1975·The Biological Bulletin·Timothy A LyerlaMarilyn Fisher
Apr 15, 2008·Soft Matter·Deepak M KalaskarStephen J Eichhorn

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Citations

Nov 11, 2019·ACS Biomaterials Science & Engineering·Franck QueroCristian Acevedo

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