2016
DOI: 10.1016/j.polymer.2016.07.015
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Investigation of the micro- and nano-scale architecture of cellulose hydrogels with plant cell wall polysaccharides: A combined USANS/SANS study

Abstract: The structure of protiated, deuterated and composite cellulose hydrogels with plant cell wall (PCW) polysaccharides has been investigated by combined USANS/SANS experiments, complemented with spectroscopy and microscopy. The broad size range covered by the USANS/SANS experiments enabled the identification of cellulose architectural features in the cross-sectional and longitudinal directions. In the crosssectional direction, cellulose ribbons are modelled as core-shell structures. Xyloglucan and mixed linkage g… Show more

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Cited by 31 publications
(11 citation statements)
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“…To probe the gel structure of P. ovata mucilage AXs in a hydrated state, a combination of ultra-small and small angle neutron scattering (USANS/SANS) was employed. This combination of techniques has been used to investigate the hierarchical architecture of bacterial cellulose hydrogels and enables the characterisation of polysaccharide hydrogels, across multiple length scales covering at least four orders of magnitude: from  10 Å (molecular level) to  10 µm (gel microstructure) (Martinez-Sanz et al, 2016). In addition, this combination of scattering techniques was used to explore interaction mechanisms between cellulose and other plant cell wall polysaccharides, which is particularly relevant for the present work that seeks to evaluate interactions that drive gel formation in P. ovata mucilage AXs (Martinez-Sanz et al, 2016).…”
Section: Accepted Manuscriptmentioning
confidence: 99%
“…To probe the gel structure of P. ovata mucilage AXs in a hydrated state, a combination of ultra-small and small angle neutron scattering (USANS/SANS) was employed. This combination of techniques has been used to investigate the hierarchical architecture of bacterial cellulose hydrogels and enables the characterisation of polysaccharide hydrogels, across multiple length scales covering at least four orders of magnitude: from  10 Å (molecular level) to  10 µm (gel microstructure) (Martinez-Sanz et al, 2016). In addition, this combination of scattering techniques was used to explore interaction mechanisms between cellulose and other plant cell wall polysaccharides, which is particularly relevant for the present work that seeks to evaluate interactions that drive gel formation in P. ovata mucilage AXs (Martinez-Sanz et al, 2016).…”
Section: Accepted Manuscriptmentioning
confidence: 99%
“…There have been several reports of the biosynthesis of deuterium-labeled native biopolymers in bacteria and yeasts (Russell et al, 2015). Deuterated cellulose from Gluconacetobacter xylinus has been studied to understand the fundamental properties of cellulose and for the development of composite materials to investigate polymer-polymer interactions (Bali et al, 2013;He et al, 2014;Martínez-Sanz et al, 2015, 2017Martínez-Sanz, Mikkelsen et al, 2016;Raghuwanshi et al, 2017;O'Neill et al, 2017). Deuterated chitosan has been produced in P. pastoris for the characterization of chitosan blended with other carbohydrate molecules to enhance contrasting deuterated chitosan against the other components in the blend (Russell et al, 2014).…”
Section: Polymer Systemsmentioning
confidence: 99%
“…8, where the micro-and nano-scale architectures of a biopolymer (cellulose) hydrogel have been investigated. Here the purpose was to obtain valuable insights into cellulose biosynthesis processes, which are vital for the development of, for example, biodegradable materials (Martínez-Sanz et al, 2016). The measurements were performed using a total of five Intensity plots measured on a solid sample (coal) as a function of scattering vector magnitude q.…”
Section: Performancementioning
confidence: 99%
“…In the following we will focus on the concept and performance of the KOOKABURRA USANS instrument. Recent results on a variety of scientific topics studied with KOOKABURRA can be found elsewhere (Xia et al, 2014;Yang et al, 2015;Taghavikish et al, 2016;McCoy et al, 2016;Martínez-Sanz et al, 2016;Sakurovs et al, 2017;Allioux et al, 2017).…”
Section: Introductionmentioning
confidence: 99%