Cargando…

Bio-Catalysis for the Functionalization of Cellulose Nanocrystals

In this work, the chemical modification of cellulose nanocrystals (NCs) using an enzyme as a catalyst has been performed by a “grafting from” reaction, in order to covalently functionalize the external surface of NCs with both poly(L-lactic acid) (PLLA) and poly(ε-caprolactone) (PCL) by ring-opening...

Descripción completa

Detalles Bibliográficos
Autores principales: Peponi, Laura, Barrera-Rivera, Karla A., Kenny, José M., Marcos-Fernandez, Ángel, Martinez-Richa, Antonio, López, Daniel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9693080/
https://www.ncbi.nlm.nih.gov/pubmed/36432349
http://dx.doi.org/10.3390/nano12224064
_version_ 1784837445045452800
author Peponi, Laura
Barrera-Rivera, Karla A.
Kenny, José M.
Marcos-Fernandez, Ángel
Martinez-Richa, Antonio
López, Daniel
author_facet Peponi, Laura
Barrera-Rivera, Karla A.
Kenny, José M.
Marcos-Fernandez, Ángel
Martinez-Richa, Antonio
López, Daniel
author_sort Peponi, Laura
collection PubMed
description In this work, the chemical modification of cellulose nanocrystals (NCs) using an enzyme as a catalyst has been performed by a “grafting from” reaction, in order to covalently functionalize the external surface of NCs with both poly(L-lactic acid) (PLLA) and poly(ε-caprolactone) (PCL) by ring-opening polymerization. Firstly, cellulose nanocrystals were prepared from commercial cellulose microcrystals by acid hydrolysis and then functionalized by using Yarrowia lipolytica lipase immobilized on Lewatit resin as a catalyst. To confirm the success of the grafting reactions, (1)H-NMR has been performed as well as FT-IR and Raman spectroscopy. Moreover, thermogravimetric analysis has been used to determine the amount of polymeric chains grafted onto the surface of cellulose nanocrystals. Furthermore, the crystalline nature of the polymeric chains grafted onto the cellulose surface has been studied by DSC, X-ray scattering, as well as SAXS analysis. To our knowledge, it is the first time that a biocatalyst approach has been used to obtain biopolymeric functionalized cellulose nanocrystals.
format Online
Article
Text
id pubmed-9693080
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-96930802022-11-26 Bio-Catalysis for the Functionalization of Cellulose Nanocrystals Peponi, Laura Barrera-Rivera, Karla A. Kenny, José M. Marcos-Fernandez, Ángel Martinez-Richa, Antonio López, Daniel Nanomaterials (Basel) Article In this work, the chemical modification of cellulose nanocrystals (NCs) using an enzyme as a catalyst has been performed by a “grafting from” reaction, in order to covalently functionalize the external surface of NCs with both poly(L-lactic acid) (PLLA) and poly(ε-caprolactone) (PCL) by ring-opening polymerization. Firstly, cellulose nanocrystals were prepared from commercial cellulose microcrystals by acid hydrolysis and then functionalized by using Yarrowia lipolytica lipase immobilized on Lewatit resin as a catalyst. To confirm the success of the grafting reactions, (1)H-NMR has been performed as well as FT-IR and Raman spectroscopy. Moreover, thermogravimetric analysis has been used to determine the amount of polymeric chains grafted onto the surface of cellulose nanocrystals. Furthermore, the crystalline nature of the polymeric chains grafted onto the cellulose surface has been studied by DSC, X-ray scattering, as well as SAXS analysis. To our knowledge, it is the first time that a biocatalyst approach has been used to obtain biopolymeric functionalized cellulose nanocrystals. MDPI 2022-11-18 /pmc/articles/PMC9693080/ /pubmed/36432349 http://dx.doi.org/10.3390/nano12224064 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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/).
spellingShingle Article
Peponi, Laura
Barrera-Rivera, Karla A.
Kenny, José M.
Marcos-Fernandez, Ángel
Martinez-Richa, Antonio
López, Daniel
Bio-Catalysis for the Functionalization of Cellulose Nanocrystals
title Bio-Catalysis for the Functionalization of Cellulose Nanocrystals
title_full Bio-Catalysis for the Functionalization of Cellulose Nanocrystals
title_fullStr Bio-Catalysis for the Functionalization of Cellulose Nanocrystals
title_full_unstemmed Bio-Catalysis for the Functionalization of Cellulose Nanocrystals
title_short Bio-Catalysis for the Functionalization of Cellulose Nanocrystals
title_sort bio-catalysis for the functionalization of cellulose nanocrystals
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9693080/
https://www.ncbi.nlm.nih.gov/pubmed/36432349
http://dx.doi.org/10.3390/nano12224064
work_keys_str_mv AT peponilaura biocatalysisforthefunctionalizationofcellulosenanocrystals
AT barrerariverakarlaa biocatalysisforthefunctionalizationofcellulosenanocrystals
AT kennyjosem biocatalysisforthefunctionalizationofcellulosenanocrystals
AT marcosfernandezangel biocatalysisforthefunctionalizationofcellulosenanocrystals
AT martinezrichaantonio biocatalysisforthefunctionalizationofcellulosenanocrystals
AT lopezdaniel biocatalysisforthefunctionalizationofcellulosenanocrystals