Novel thiol- amine- and amino acid functional xylan derivatives synthesized by thiol–ene reaction

Pahimanolis, Nikolaos; Kilpeläinen, Petri; Master, Emma R.; Ilvesniemi, Hannu; Seppälä, Jukka

doi:10.1016/j.carbpol.2015.06.007

Cited by 25 publications

(11 citation statements)

References 66 publications

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“…145 The presence of hydroxyl and carboxylic groups on hemicelluloses makes them suitable for being chemically modified to introduce new functionalities. Several chemical modifications have been studied in order to obtain hydrogels from hemicelluloses, introducing cross-linking such as thiol-functional, 146,147 methacrylate derivatives, 148 and grafting of acrylic acid. 149 It has been previously shown that, hemicelluloses extracted from spruce, such as xylan and galactoglucomannan, could be modified with tyramine, a molecule similar to lignin, which enable the enzymatic cross-linking using horseradish peroxidase.…”

Section: D-bioprinting Of Nanocellulosementioning

confidence: 99%

<p>Surface-Modified Nanocellulose for Application in Biomedical Engineering and Nanomedicine: A Review</p>

Tortorella¹,

Buratti²,

Maturi³

et al. 2020

IJN

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Presently, a plenty of concerns related to the environment are due to the overuse of petroleum-based chemicals and products; the synthesis of functional materials, starting from the natural sources, is the current trend in research. The interest for nanocellulose has recently increased in a huge range of fields, from the material science to the biomedical engineering. Nanocellulose gained this leading role because of several reasons: its natural abundance on this planet, the excellent mechanical and optical features, the good biocompatibility and the attractive capability of undergoing surface chemical modifications. Nanocellulose surface tuning techniques are adopted by the high reactivity of the hydroxyl groups available; the chemical modifications are mainly performed to introduce either charged or hydrophobic moieties that include amination, esterification, oxidation, silylation, carboxymethylation, epoxidation, sulfonation, thiol- and azido-functional capability. Despite the several already published papers regarding nanocellulose, the aim of this review involves discussing the surface chemical functional capability of nanocellulose and the subsequent applications in the main areas of nanocellulose research, such as drug delivery, biosensing/bioimaging, tissue regeneration and bioprinting, according to these modifications. The final goal of this review is to provide a novel and unusual overview on this topic that is continuously under expansion for its intrinsic sophisticated properties.

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Section: D-bioprinting Of Nanocellulosementioning

confidence: 99%

<p>Surface-Modified Nanocellulose for Application in Biomedical Engineering and Nanomedicine: A Review</p>

Tortorella¹,

Buratti²,

Maturi³

et al. 2020

IJN

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“… 122 − 124 By employing different cross-linking strategies, hemicellulose-based hydrogels can also be prepared by methacrylate derivatization, 125 , 126 tyramine modification, 127 , 128 and thiol functionalization. 129 , 130 This has inspired the utilization of hemicellulose derivatives as promoting agents in the 3D printing of nanocelluloses, which offer a cross-linking network by binding with the cellulose matrix in the woody bioink. As demonstrated by Markstedt et al, 95 tyramine-modified xylan acts as both a fiber surface modifier and a biodegradable cross-linker in the formulation of nanocellulose bioinks.…”

Section: Hemicelluloses: Properties and Aspects For 3d Printingmentioning

confidence: 99%

“…After being fractionated from woody biomasses, the high physical affinity between hemicelluloses and the cellulose surface is retained. − This gives hemicelluloses an applicable niche as anchor polymers to engineer the surface of cellulose fibers. − Structurally, hemicellulose contains either pentose or hexose with many free hydroxyl groups, which are easily functionalized by, for example, esterification, etherification, or reductive amination. In our past studies, tuning the surface properties of CNFs (wettability and surface rigidity) using hardwood hemicellulose from spruce, galactoglucomannan (GGM), and its derivatives (GGM- graft- fatty acid, GGM- block -fatty acid, and GGM- block- PDMS) was investigated. − By employing different cross-linking strategies, hemicellulose-based hydrogels can also be prepared by methacrylate derivatization, , tyramine modification, , and thiol functionalization. , This has inspired the utilization of hemicellulose derivatives as promoting agents in the 3D printing of nanocelluloses, which offer a cross-linking network by binding with the cellulose matrix in the woody bioink. As demonstrated by Markstedt et al, tyramine-modified xylan acts as both a fiber surface modifier and a biodegradable cross-linker in the formulation of nanocellulose bioinks.…”

Section: Hemicelluloses: Properties and Aspects For 3d Printingmentioning

confidence: 99%

Three-Dimensional Printing of Wood-Derived Biopolymers: A Review Focused on Biomedical Applications

Wang

Sandler

et al. 2018

ACS Sustainable Chem. Eng.

200

141

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Wood-derived biopolymers have attracted great attention over the past few decades due to their abundant and versatile properties. The well-separated three main components, i.e., cellulose, hemicelluloses, and lignin, are considered significant candidates for replacing and improving on oil-based chemicals and materials. The production of nanocellulose from wood pulp opens an opportunity for novel material development and applications in nanotechnology. Currently, increased research efforts are focused on developing 3D printing techniques for wood-derived biopolymers for use in emerging application areas, including as biomaterials for various biomedical applications and as novel composite materials for electronics and energy devices. This Review highlights recent work on emerging applications of wood-derived biopolymers and their advanced composites with a specific focus on customized pharmaceutical products and advanced functional biomedical devices prepared via three-dimensional printing. Specifically, various biofabrication strategies in which woody biopolymers are used to fabricate customized drug delivery devices, cartilage implants, tissue engineering scaffolds and items for other biomedical applications are discussed.

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“…Beads consisted of xylan cross-linked with disulfide bonds (Pahimanolis et al, 2015) having a water content of 94 wt.% and reinforced with cellulose nanocrystals 11 wt.% of solids content see Supplementary material (Appendix A) for detailed synthesis and analysis.…”

Section: Bead Materialsmentioning

confidence: 99%

Continuous propionic acid production with Propionibacterium acidipropionici immobilized in a novel xylan hydrogel matrix

Wallenius

Pahimanolis

Zoppe

et al. 2015

Bioresource Technology

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Novel thiol- amine- and amino acid functional xylan derivatives synthesized by thiol–ene reaction

Cited by 25 publications

References 66 publications

<p>Surface-Modified Nanocellulose for Application in Biomedical Engineering and Nanomedicine: A Review</p>

<p>Surface-Modified Nanocellulose for Application in Biomedical Engineering and Nanomedicine: A Review</p>

Three-Dimensional Printing of Wood-Derived Biopolymers: A Review Focused on Biomedical Applications

Continuous propionic acid production with Propionibacterium acidipropionici immobilized in a novel xylan hydrogel matrix

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