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Mietner JB, Jiang X, Edlund U, Saake B, Navarro JRG. 3D printing of a bio-based ink made of cross-linked cellulose nanofibrils with various metal cations. Sci Rep 2021; 11:6461. [PMID: 33742068 PMCID: PMC7979872 DOI: 10.1038/s41598-021-85865-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 03/04/2021] [Indexed: 12/13/2022] Open
Abstract
In this work, we present an approach to cross-link cellulose nanofibrils (CNFs) with various metallic cations (Fe3+, Al3+, Ca2+, and Mg2+) to produce inks suitable for three-dimensional (3D) printing application. The printability of each hydrogel ink was evaluated, and several parameters such as the optimal ratio of Mn+:TOCNF:H2O were discussed. CNF suspensions were produced by mechanical disintegration of cellulose pulp with a microfluidizer and then oxidized with 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO). Finally, metal cations were introduced to the deprotonated TEMPO-oxidized CNF (TOCNF) suspension to cross-link the nanofibrils and form the corresponding hydrogels. The performances of each gel-ink were evaluated by rheological measurements and 3D printing. Only the gels incorporated with divalent cations Ca2+ and Mg2+ were suitable for 3D printing. The 3D printed structures were freeze-dried and characterized with Fourier transform infrared spectroscopy (FT-IR) and Scanning Electron Microscopy (SEM). The better interaction of the TOCNFs with the divalent metallic cations in terms of printability, the viscoelastic properties of the inks, and the variation trends owing to various metal cations and ratios are discussed.
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Affiliation(s)
| | - Xuehe Jiang
- Institute of Wood Science, Universität Hamburg, Hamburg, Germany
| | - Ulrica Edlund
- Fiber and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56, 100 44, Stockholm, Sweden
| | - Bodo Saake
- Institute of Wood Science, Universität Hamburg, Hamburg, Germany
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Tsuneyasu S, Watanabe R, Takeda N, Uetani K, Izakura S, Kasuya K, Takahashi K, Satoh T. Enhancement of Luminance in Powder Electroluminescent Devices by Substrates of Smooth and Transparent Cellulose Nanofiber Films. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:697. [PMID: 33802162 PMCID: PMC8001356 DOI: 10.3390/nano11030697] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/02/2021] [Accepted: 03/08/2021] [Indexed: 11/17/2022]
Abstract
Powder electroluminescent (EL) devices with an electric field type excitation are surface light sources that are expected to have a wide range of practical applications, owing to their high environmental resistance; however, their low luminance has hindered their use. A clarification of the relationship between the properties of the film substrates and the electroluminescence is important to drastically improve light extraction efficiency. In this study, powder EL devices with different substrates of various levels of surface roughness and different optical transmittances were fabricated to quantitatively evaluate the relationships between the substrate properties and the device characteristics. A decrease in the surface roughness of the substrate caused a clear increase in both the current density and the luminance. The luminance was found to have a direct relationship with the optical transmittance of the substrates. The powder EL device, which was based on a cellulose nanofiber film and was the smoothest and most transparent substrate investigated, showed the highest luminance (641 cd/cm2) when 300 V was applied at 1 kHz.
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Affiliation(s)
- Shota Tsuneyasu
- Department of Media Engineering, Graduate School of Engineering, Tokyo Polytechnic University, 1583 Iiyama, Atsugi, Kanagawa 243-0297, Japan; (S.T.); (R.W.); (N.T.)
| | - Rikuya Watanabe
- Department of Media Engineering, Graduate School of Engineering, Tokyo Polytechnic University, 1583 Iiyama, Atsugi, Kanagawa 243-0297, Japan; (S.T.); (R.W.); (N.T.)
| | - Naoki Takeda
- Department of Media Engineering, Graduate School of Engineering, Tokyo Polytechnic University, 1583 Iiyama, Atsugi, Kanagawa 243-0297, Japan; (S.T.); (R.W.); (N.T.)
| | - Kojiro Uetani
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan;
| | - Shogo Izakura
- Graduate School of Engineering, Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan; (S.I.); (K.K.); (K.T.)
| | - Keitaro Kasuya
- Graduate School of Engineering, Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan; (S.I.); (K.K.); (K.T.)
| | - Kosuke Takahashi
- Graduate School of Engineering, Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan; (S.I.); (K.K.); (K.T.)
| | - Toshifumi Satoh
- Department of Media Engineering, Graduate School of Engineering, Tokyo Polytechnic University, 1583 Iiyama, Atsugi, Kanagawa 243-0297, Japan; (S.T.); (R.W.); (N.T.)
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Khattak S, Qin XT, Wahid F, Huang LH, Xie YY, Jia SR, Zhong C. Permeation of Silver Sulfadiazine Into TEMPO-Oxidized Bacterial Cellulose as an Antibacterial Agent. Front Bioeng Biotechnol 2021; 8:616467. [PMID: 33585416 PMCID: PMC7876255 DOI: 10.3389/fbioe.2020.616467] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/16/2020] [Indexed: 11/13/2022] Open
Abstract
Surface oxidation of bacterial cellulose (BC) was done with the TEMPO-mediated oxidation mechanism system. After that, TEMPO-oxidized bacterial cellulose (TOBC) was impregnated with silver sulfadiazine (AgSD) to prepare nanocomposite membranes. Fourier transform infrared spectroscopy (FTIR) was carried out to determine the existence of aldehyde groups on BC nanofibers and X-ray diffraction (XRD) demonstrated the degree of crystallinity. FESEM analysis revealed the impregnation of AgSD nanoparticles at TOBC nanocomposites with the average diameter size ranging from 11 nm to 17.5 nm. The sample OBCS3 showed higher antibacterial activity against Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli by the disc diffusion method. The results showed AgSD content, dependent antibacterial activity against all tested bacteria, and degree of crystallinity increases with TOBC and AgSD. The main advantage of the applications of TEMPO-mediated oxidation to BC nanofibers is that the crystallinity of BC nanofibers is unchanged and increased after the oxidation. Also enhanced the reactivity of BC as it is one of the most promising method for cellulose fabrication and functionalization. We believe that the novel composite membrane could be a potential candidate for biomedical applications like wound dressing, BC scaffold, and tissue engineering.
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Affiliation(s)
- Shahia Khattak
- State Key Laboratory of Food Nutrition & Safety, Tianjin University of Science & Technology, Tianjin, China
- Key Laboratory of Industrial Fermentation Microbiology, (Ministry of Education), Tianjin University of Science & Technology, Tianjin, China
| | - Xiao-Tong Qin
- State Key Laboratory of Food Nutrition & Safety, Tianjin University of Science & Technology, Tianjin, China
- Key Laboratory of Industrial Fermentation Microbiology, (Ministry of Education), Tianjin University of Science & Technology, Tianjin, China
| | - Fazli Wahid
- State Key Laboratory of Food Nutrition & Safety, Tianjin University of Science & Technology, Tianjin, China
- Key Laboratory of Industrial Fermentation Microbiology, (Ministry of Education), Tianjin University of Science & Technology, Tianjin, China
| | - Long-Hui Huang
- State Key Laboratory of Food Nutrition & Safety, Tianjin University of Science & Technology, Tianjin, China
- Key Laboratory of Industrial Fermentation Microbiology, (Ministry of Education), Tianjin University of Science & Technology, Tianjin, China
| | - Yan-Yan Xie
- State Key Laboratory of Food Nutrition & Safety, Tianjin University of Science & Technology, Tianjin, China
- Key Laboratory of Industrial Fermentation Microbiology, (Ministry of Education), Tianjin University of Science & Technology, Tianjin, China
| | - Shi-Ru Jia
- State Key Laboratory of Food Nutrition & Safety, Tianjin University of Science & Technology, Tianjin, China
- Key Laboratory of Industrial Fermentation Microbiology, (Ministry of Education), Tianjin University of Science & Technology, Tianjin, China
| | - Cheng Zhong
- State Key Laboratory of Food Nutrition & Safety, Tianjin University of Science & Technology, Tianjin, China
- Key Laboratory of Industrial Fermentation Microbiology, (Ministry of Education), Tianjin University of Science & Technology, Tianjin, China
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Xu D, Wang S, Berglund LA, Zhou Q. Surface Charges Control the Structure and Properties of Layered Nanocomposite of Cellulose Nanofibrils and Clay Platelets. ACS APPLIED MATERIALS & INTERFACES 2021; 13:4463-4472. [PMID: 33428385 PMCID: PMC7880528 DOI: 10.1021/acsami.0c18594] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/29/2020] [Indexed: 06/12/2023]
Abstract
The interfacial bonding and structure at the nanoscale in the polymer-clay nanocomposites are essential for obtaining desirable material and structure properties. Layered nanocomposite films of cellulose nanofibrils (CNFs)/montmorillonite (MTM) were prepared from the water suspensions of either CNFs bearing quaternary ammonium cations (Q-CNF) or CNFs bearing carboxylate groups (TO-CNF) with MTM nanoplatelets carrying net surface negative charges by using vacuum filtration followed by compressive drying. The effect of the ionic interaction between cationic or anionic charged CNFs and MTM nanoplatelets on the structure, mechanical properties, and flame retardant performance of the TO-CNF/MTM and Q-CNF/MTM nanocomposite films were studied and compared. The MTM nanoplatelets were well dispersed in the network of TO-CNFs in the form of nanoscale tactoids with the MTM content in the range of 5-70 wt %, while an intercalated structure was observed in the Q-CNF/MTM nanocomposites. The resulting TO-CNF/MTM nanocomposite films had a better flame retardant performance as compared to the Q-CNF/MTM films with the same MTM content. In addition, the effective modulus of MTM for the TO-CNF/MTM nanocomposites was as high as 129.9 GPa, 3.5 times higher than that for Q-CNF/MTM (37.1 GPa). On the other hand, the Q-CNF/MTM nanocomposites showed a synergistic enhancement in the modulus and tensile strength together with strain-to-failure and demonstrated a much better toughness as compared to the TO-CNF/MTM nanocomposites.
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Affiliation(s)
- Dingfeng Xu
- Division
of Glycoscience, Department of Chemistry, School of Engineering Sciences
in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, AlbaNova University Centre, Stockholm SE-106 91, Sweden
| | - Shennan Wang
- Division
of Glycoscience, Department of Chemistry, School of Engineering Sciences
in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, AlbaNova University Centre, Stockholm SE-106 91, Sweden
| | - Lars A. Berglund
- Wallenberg
Wood Science Center, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden
| | - Qi Zhou
- Division
of Glycoscience, Department of Chemistry, School of Engineering Sciences
in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, AlbaNova University Centre, Stockholm SE-106 91, Sweden
- Wallenberg
Wood Science Center, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden
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55
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Heise K, Kontturi E, Allahverdiyeva Y, Tammelin T, Linder MB, Nonappa, Ikkala O. Nanocellulose: Recent Fundamental Advances and Emerging Biological and Biomimicking Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2004349. [PMID: 33289188 DOI: 10.1002/adma.202004349] [Citation(s) in RCA: 134] [Impact Index Per Article: 44.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/01/2020] [Indexed: 06/12/2023]
Abstract
In the effort toward sustainable advanced functional materials, nanocelluloses have attracted extensive recent attention. Nanocelluloses range from rod-like highly crystalline cellulose nanocrystals to longer and more entangled cellulose nanofibers, earlier denoted also as microfibrillated celluloses and bacterial cellulose. In recent years, they have spurred research toward a wide range of applications, ranging from nanocomposites, viscosity modifiers, films, barrier layers, fibers, structural color, gels, aerogels and foams, and energy applications, until filtering membranes, to name a few. Still, nanocelluloses continue to show surprisingly high challenges to master their interactions and tailorability to allow well-controlled assemblies for functional materials. Rather than trying to review the already extensive nanocellulose literature at large, here selected aspects of the recent progress are the focus. Water interactions, which are central for processing for the functional properties, are discussed first. Then advanced hybrid gels toward (multi)stimuli responses, shape-memory materials, self-healing, adhesion and gluing, biological scaffolding, and forensic applications are discussed. Finally, composite fibers are discussed, as well as nanocellulose as a strategy for improvement of photosynthesis-based chemicals production. In summary, selected perspectives toward new directions for sustainable high-tech functional materials science based on nanocelluloses are described.
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Affiliation(s)
- Katja Heise
- Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076, Finland
- Center of Excellence in Molecular Engineering of Biosynthetic Hybrid Materials Research, Aalto University, FI-00076, Finland
| | - Eero Kontturi
- Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076, Finland
| | - Yagut Allahverdiyeva
- Molecular Plant Biology, Department of Biochemistry, University of Turku, Turku, FI-20014, Finland
| | - Tekla Tammelin
- VTT Technical Research Centre of Finland Ltd, VTT, PO Box 1000, FIN-02044, Espoo, Finland
| | - Markus B Linder
- Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076, Finland
- Center of Excellence in Molecular Engineering of Biosynthetic Hybrid Materials Research, Aalto University, FI-00076, Finland
| | - Nonappa
- Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076, Finland
- Center of Excellence in Molecular Engineering of Biosynthetic Hybrid Materials Research, Aalto University, FI-00076, Finland
- Department of Applied Physics, Aalto University, Espoo, FI-00076, Finland
- Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, Tampere, FI-33101, Finland
| | - Olli Ikkala
- Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076, Finland
- Center of Excellence in Molecular Engineering of Biosynthetic Hybrid Materials Research, Aalto University, FI-00076, Finland
- Department of Applied Physics, Aalto University, Espoo, FI-00076, Finland
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56
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Kato R, Lettow JH, Patel SN, Rowan SJ. Ion-Conducting Thermoresponsive Films Based on Polymer-Grafted Cellulose Nanocrystals. ACS APPLIED MATERIALS & INTERFACES 2020; 12:54083-54093. [PMID: 33201676 DOI: 10.1021/acsami.0c16059] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Mechanically robust, thermoresponsive, ion-conducting nanocomposite films are prepared from poly(2-phenylethyl methacrylate)-grafted cellulose nanocrystals (MxG-CNC-g-PPMA). One-component nanocomposite films of the polymer-grafted nanoparticle (PGN) MxG-CNC-g-PPMA are imbibed with 30 wt % imidazolium-based ionic liquid to produce flexible ion-conducting films. These films with 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (MxG-CNC-g-PPMA/[H]) not only display remarkable improvements in toughness (>25 times) and tensile strength (>70 times) relative to the corresponding films consisting of the ionic liquid imbibed in the two-component CNC/PPMA nanocomposite but also show higher ionic conductivity than the corresponding neat PPMA with the same weight percent of ionic liquid. Notably, the one-component film containing 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (MxG-CNC-g-PPMA/[E]) exhibits temperature-responsive ionic conduction. The ionic conductivity decreases at around 60 °C as a consequence of the lower critical solution temperature phase transition of the grafted polymer in the ionic liquid, which leads to phase separation. Moreover, holding the MxG-CNC-g-PPMA/[E] film at room temperature for 24 h returns the film to its original homogenous state. These materials exhibit properties relevant to thermal cutoff safety devices (e.g., thermal fuse) where a reduction in conductivity above a critical temperature is needed.
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Chitbanyong K, Pisutpiched S, Khantayanuwong S, Theeragool G, Puangsin B. TEMPO-oxidized cellulose nanofibril film from nano-structured bacterial cellulose derived from the recently developed thermotolerant Komagataeibacter xylinus C30 and Komagataeibacter oboediens R37-9 strains. Int J Biol Macromol 2020; 163:1908-1914. [PMID: 32976905 DOI: 10.1016/j.ijbiomac.2020.09.124] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/03/2020] [Accepted: 09/17/2020] [Indexed: 01/19/2023]
Abstract
Bacterial cellulose (BC), prepared from two recently developed thermotolerant bacterial strains (Komagataeibacter xylinus C30 and Komagataeibacter oboediens R37-9), were used as a raw material to synthesize nanofibril films. Field-emission scanning electron microscope (FE-SEM) observations confirmed the ultrafine nano-structure of BC pellicle (BCP) with average fibril widths between 50 and 60 nm. The BC was directly oxidized in a TEMPO/NaBr/NaClO system at pH of 10 for 2 h. TEMPO-oxidized bacterial cellulose nanofibrils (TOBCN) were obtained by a mild mechanical treatment and the TOBCN films were prepared through heat-drying. The oxidation yielded a recovery ratio between 70 and 80% by weight with an increase in the carboxylate content of 0.9-1.0 mmol g -1. Nanofibrillation yields were more than 90% and the resulting high aspect ratio TOBCNs were ~6 nm in average width with >800 nm in lengths, when observed under transmission electron microscope (TEM). TOBCN film of K. xylinus C30 exhibited high transparency (79%), tensile strength (142 MPa), Young's modulus (7.13 GPa), elongation around failure (3.89%), and work of fracture (2.29 MJ m-3), when compared to the TOBCN films of K. oboediens R37-9 at 23 °C and 50% RH. Coefficients of thermal expansion of both the TOBCN films were low at around 6 ppm K-1.
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Affiliation(s)
- Korawit Chitbanyong
- Department of Forest Products, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand
| | - Sawitree Pisutpiched
- Department of Forest Products, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand
| | - Somwang Khantayanuwong
- Department of Forest Products, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand
| | - Gunjana Theeragool
- Department of Microbiology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Buapan Puangsin
- Department of Forest Products, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand.
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Cellulose Nanofibers from a Dutch Elm Disease-Resistant Ulmus minor Clone. Polymers (Basel) 2020; 12:polym12112450. [PMID: 33113940 PMCID: PMC7690703 DOI: 10.3390/polym12112450] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 11/21/2022] Open
Abstract
The potential use of elm wood in lignocellulosic industries has been hindered by the Dutch elm disease (DED) pandemics, which have ravaged European and North American elm groves in the last century. However, the selection of DED-resistant cultivars paves the way for their use as feedstock in lignocellulosic biorefineries. Here, the production of cellulose nanofibers from the resistant Ulmus minor clone Ademuz was evaluated for the first time. Both mechanical (PFI refining) and chemical (TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical)-mediated oxidation) pretreatments were assessed prior to microfluidization, observing not only easier fibrillation but also better optical and barrier properties for elm nanopapers compared to eucalyptus ones (used as reference). Furthermore, mechanically pretreated samples showed higher strength for elm nanopapers. Although lower nanofibrillation yields were obtained by mechanical pretreatment, nanofibers showed higher thermal, mechanical and barrier properties, compared to TEMPO-oxidized nanofibers. Furthermore, lignin-containing elm nanofibers presented the most promising characteristics, with slightly lower transparencies.
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Li K, Wang S, Chen H, Yang X, Berglund LA, Zhou Q. Self-Densification of Highly Mesoporous Wood Structure into a Strong and Transparent Film. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2003653. [PMID: 32881202 DOI: 10.1002/adma.202003653] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 08/01/2020] [Indexed: 05/04/2023]
Abstract
In the native wood cell wall, cellulose microfibrils are highly aligned and organized in the secondary cell wall. A new preparation strategy is developed to achieve individualization of cellulose microfibrils within the wood cell wall structure without introducing mechanical disintegration. The resulting mesoporous wood structure has a high specific surface area of 197 m2 g-1 when prepared by freeze-drying using liquid nitrogen, and 249 m2 g-1 by supercritical drying. These values are 5 to 7 times higher than conventional delignified wood (36 m2 g-1 ) dried by supercritical drying. Such highly mesoporous structure with individualized cellulose microfibrils maintaining their natural alignment and organization can be processed into aerogels with high porosity and high compressive strength. In addition, a strong film with a tensile strength of 449.1 ± 21.8 MPa and a Young's modulus of 51.1 ± 5.2 GPa along the fiber direction is obtained simply by air drying owing to the self-densification of cellulose microfibrils driven by the elastocapillary forces upon water evaporation. The self-densified film also shows high optical transmittance (80%) and high optical haze (70%) with interesting biaxial light scattering behavior owing to the natural alignment of cellulose microfibrils.
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Affiliation(s)
- Kai Li
- Division of Glycoscience, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, AlbaNova University Centre, Stockholm, SE-106 91, Sweden
- Wallenberg Wood Science Center, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, SE-100 44, Sweden
| | - Shennan Wang
- Division of Glycoscience, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, AlbaNova University Centre, Stockholm, SE-106 91, Sweden
- Wallenberg Wood Science Center, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, SE-100 44, Sweden
| | - Hui Chen
- Wallenberg Wood Science Center, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, SE-100 44, Sweden
| | - Xuan Yang
- Wallenberg Wood Science Center, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, SE-100 44, Sweden
| | - Lars A Berglund
- Wallenberg Wood Science Center, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, SE-100 44, Sweden
| | - Qi Zhou
- Division of Glycoscience, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, AlbaNova University Centre, Stockholm, SE-106 91, Sweden
- Wallenberg Wood Science Center, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, SE-100 44, Sweden
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60
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Controlling the transparency and rheology of nanocellulose gels with the extent of carboxylation. Carbohydr Polym 2020; 245:116566. [DOI: 10.1016/j.carbpol.2020.116566] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/02/2020] [Accepted: 06/02/2020] [Indexed: 02/08/2023]
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61
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Hasan N, Rahman L, Kim SH, Cao J, Arjuna A, Lallo S, Jhun BH, Yoo JW. Recent advances of nanocellulose in drug delivery systems. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2020. [DOI: 10.1007/s40005-020-00499-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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62
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Musino D, Rivard C, Landrot G, Novales B, Rabilloud T, Capron I. Hydroxyl groups on cellulose nanocrystal surfaces form nucleation points for silver nanoparticles of varying shapes and sizes. J Colloid Interface Sci 2020; 584:360-371. [PMID: 33080498 DOI: 10.1016/j.jcis.2020.09.082] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/15/2020] [Accepted: 09/21/2020] [Indexed: 12/21/2022]
Abstract
In this study, we investigate the interactions between the cellulose surface and Ag nanoparticles (AgNPs) for the purpose of manufacturing hybrid nanomaterials using bacterial cellulose nanocrystals (BCNs) as a model substrate. We focus on the role of the BCN surface chemistry on the AgNP nucleation obtained by chemical reduction of Ag+ ions. Homogeneous hybrid suspensions of BCN/AgNP are produced, regardless of whether the BCNs are quasi-neutral, negatively (TBCNs) or positively charged (ABCNs). The characterization of BCN/AgNP hybrids identifies the -OH surface groups as nucleation points for AgNPs, of about 20 nm revealing that surface charges only improve the accessibility to OH groups. X-ray Absorption technics (XANES and EXAFS) revealed a high metallic Ag0 content ranging from 88% to 97%. Moreover, the grafting of hydrophobic molecules on a BCN surface (HBCNs) does not prevent AgNP nucleation, illustrating the versatility of our method and the possibility to obtain bifunctional NPs. A H2O2 redox post-treatment on the hybrid induces an increase in AgNPs size, up to 90 nm as well as a shape variation (i.e., triangular). In contrast, H2O2 induces no size/shape variation for aggregated hybrids, emphasizing that the accessibility to -OH groups ensures the nucleation of bigger Ag nano-objects.
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Affiliation(s)
| | - Camille Rivard
- SOLEIL Synchrotron, L'Orme des Merisiers, Gif-sur-Yvette, 91192 Saint-Aubin, France; INRAE, TRANSFORM, 44316 Nantes, France.
| | - Gautier Landrot
- SOLEIL Synchrotron, L'Orme des Merisiers, Gif-sur-Yvette, 91192 Saint-Aubin, France.
| | | | - Thierry Rabilloud
- Univ. Grenoble Alpes, CNRS, CEA, IRIG, SYMMES, Laboratoire de Chimie et Biologie des Métaux, 38000 Grenoble, France.
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63
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Fujisawa S, Kaku Y, Kimura S, Saito T. Magnetically Collectable Nanocellulose-Coated Polymer Microparticles by Emulsion Templating. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:9235-9240. [PMID: 32663405 DOI: 10.1021/acs.langmuir.0c01533] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Magnetic nano/microparticles offer potential benefits for environmental applications such as water purification. However, achieving functional and stable surfaces remains a critical challenge for magnetic particle design. Nanocellulose, a naturally occurring nanofiber, is a promising surface material candidate, owing to its ease of functionalization and chemical stability. Here, we developed a magnetically collectable nanocellulose-coated polymer microparticle synthesis method, based on Pickering emulsion templating. The average diameter of the core/shell microparticles was 2.7 μm, and they were well dispersed in water, owing to the coverage with surface-carboxylated nanocelluloses. Most magnetic Fe3O4 nanoparticles with a 30 nm diameter were encapsulated in the microparticles and enriched at the CNF/polymer interfaces. The nanocellulose shell showed high loading of cationic dye molecules. In addition, the nanocellulose-coated microparticles could be recovered even after the dye loading by exposing the aqueous dispersion to a magnetic field.
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Affiliation(s)
- Shuji Fujisawa
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Yuto Kaku
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Satoshi Kimura
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
- Department of Plant & Environmental New Resources, College of Life Sciences, Kyung Hee University,1732 Deogyeong-daero, Giheung-ku, Yongin-si, Gyeonggi-do 446-701, Republic of Korea
| | - Tsuguyuki Saito
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
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64
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Valencia L, Nomena EM, Monti S, Rosas-Arbelaez W, Mathew AP, Kumar S, Velikov KP. Multivalent ion-induced re-entrant transition of carboxylated cellulose nanofibrils and its influence on nanomaterials' properties. NANOSCALE 2020; 12:15652-15662. [PMID: 32496493 DOI: 10.1039/d0nr02888f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work, we identify and characterize a new intriguing capability of carboxylated cellulose nanofibrils that could be exploited to design smart nanomaterials with tuned response properties for specific applications. Cellulose nanofibrils undergo a multivalent counter-ion induced re-entrant behavior at a specific multivalent metal salt concentration. This effect is manifested as an abrupt increase in the strength of the hydrogel that returns upon a further increment of salt concentration. We systematically study this phenomenon using dynamic light scattering, small-angle X-ray scattering, and molecular dynamics simulations based on a reactive force field. We find that the transitions in the nanofibril microstructure are mainly because of the perturbing actions of multivalent metal ions that induce conformational changes of the nanocellulosic chains and thus new packing arrangements. These new aggregation states also cause changes in the thermal and mechanical properties as well as wettability of the resulting films, upon water evaporation. Our results provide guidelines for the fabrication of cellulose-based films with variable properties by the simple addition of multivalent ions.
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Affiliation(s)
- Luis Valencia
- Division of Materials and Environmental Chemistry, Stockholm University, Frescativägen 8, 10691, Stockholm, Sweden.
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65
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Solomevich SO, Dmitruk EI, Bychkovsky PM, Nebytov AE, Yurkshtovich TL, Golub NV. Fabrication of oxidized bacterial cellulose by nitrogen dioxide in chloroform/cyclohexane as a highly loaded drug carrier for sustained release of cisplatin. Carbohydr Polym 2020; 248:116745. [PMID: 32919553 DOI: 10.1016/j.carbpol.2020.116745] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 01/28/2023]
Abstract
Carboxylated bacterial cellulose (OBC) was fabricated by oxidation with nitrogen dioxide in chloroform/cyclohexane and employed as a carrier for sustained release of antitumor substance cisplatin (CDDP). The influence of removing water method, solvent used in the synthesis, concentration of N2O4, and duration of the oxidation on content of carboxyl groups in reaction products was established. Due to the possibility of nitrogen dioxide to penetrate into cellulose crystallites, the carboxyl group content of the OBC reaches high values up to 4 mmol/g. In vitro degradation of OBC was determined under simulated physiological conditions. The immobilization of CDDP on OBC was studied in detail. The initial burst release of the drug from the polymer was depressed. The cytotoxicity of CDDP-loaded OBC was evaluated with HeLa cells. The unique structure and properties of OBC make it a great candidate as drug delivery carrier.
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Affiliation(s)
- Sergey O Solomevich
- Research Institute for Physical Chemical Problems of the Belarusian State University, 14 Leningradskaya Street, Minsk, 220030, Belarus.
| | - Egor I Dmitruk
- Educational-scientific-production Republican Unitary Enterprise "UNITEHPROM BSU", 1 Kurchatova, Minsk, 220045, Belarus
| | - Pavel M Bychkovsky
- Research Institute for Physical Chemical Problems of the Belarusian State University, 14 Leningradskaya Street, Minsk, 220030, Belarus; Educational-scientific-production Republican Unitary Enterprise "UNITEHPROM BSU", 1 Kurchatova, Minsk, 220045, Belarus
| | - Alexander E Nebytov
- Educational-scientific-production Republican Unitary Enterprise "UNITEHPROM BSU", 1 Kurchatova, Minsk, 220045, Belarus
| | - Tatiana L Yurkshtovich
- Research Institute for Physical Chemical Problems of the Belarusian State University, 14 Leningradskaya Street, Minsk, 220030, Belarus
| | - Natalia V Golub
- Research Institute for Physical Chemical Problems of the Belarusian State University, 14 Leningradskaya Street, Minsk, 220030, Belarus
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66
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Yeasmin S, Yeum JH, Yang SB. Fabrication and characterization of pullulan-based nanocomposites reinforced with montmorillonite and tempo cellulose nanofibril. Carbohydr Polym 2020; 240:116307. [DOI: 10.1016/j.carbpol.2020.116307] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 03/20/2020] [Accepted: 04/13/2020] [Indexed: 11/17/2022]
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67
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Effect of Purification Methods on Commercially Available Cellulose Nanocrystal Properties and TEMPO Oxidation. Processes (Basel) 2020. [DOI: 10.3390/pr8060698] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Cellulose nanocrystals (CNCs) are attractive for use in polymer composites, biomedical applications, and barrier packaging. In all of these applications they are mixed with other components and compatibility is a major design consideration, as CNCs naturally have a high density of surface hydroxyl groups and primarily disperse well in polar media. Numerous surface modification approaches have been used to address these issues, but challenges remain due to the variability in the commercially available CNC materials. CNCs can be produced from biomass using several extraction methods, most notably acid hydrolysis and biomass extraction, also known as the American Value Added Pulping process. The production method of the CNC material has an impact on both physical and surface properties of CNCs, including size, shape, crystal structure, and zeta potential. In addition, post-treatments can be used to purify the CNC material and further alter these properties. This work studies the properties of CNCs from three different commercial suppliers and after conducting three different post-treatments: dialysis, Soxhlet extraction, and acetone washing to understand the effect of the commercial source and purification on CNC surface properties and modification via 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO) mediated oxidation. We show that there is significant variation in CNC physical and surface properties between different commercial suppliers before and after purification. Importantly, we show that for CNCs produced through acid hydrolysis, acetone washing or Soxhlet extraction in ethanol decreases the achievable degree of TEMPO modification, but makes it more consistent between the different commercial suppliers. This has important implications for improving reproducibility in CNC research as well as aiding the expanding fields of applications.
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68
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Zhou Y, Ono Y, Takeuchi M, Isogai A. Changes to the Contour Length, Molecular Chain Length, and Solid-State Structures of Nanocellulose Resulting from Sonication in Water. Biomacromolecules 2020; 21:2346-2355. [PMID: 32271549 DOI: 10.1021/acs.biomac.0c00281] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Sonication in water reduced the average contour lengths of nanocellulose prepared from wood cellulose fiber and microcrystalline cellulose. Most of the kinks in the wood cellulose nanofibrils were formed during the initial 10 min of sonication. Fragmentation occurred at the kinks and rigid segments associated with depolymerization during subsequent sonication for 10-120 min, resulting in the formation of cellulose nanocrystals with low aspect ratios. Solid-state cross-polarization magic angle sample spinning 13C-nuclear magnetic resonance revealed that the original crystalline regions of the cellulose were partly transformed to fibril surfaces or disordered regions by both pretreatment and the subsequent fragmentation of molecular chains during sonication. The nanocellulose prepared from microcrystalline cellulose had different fragmentation behavior with regard to molecular chain length following sonication. The results indicated that on average the hexagonal 36 cellulose chain structure formed the cross-section of each wood cellulose microfibril.
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Affiliation(s)
- Yaxin Zhou
- Department of Biomaterials Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Yuko Ono
- Department of Biomaterials Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Miyuki Takeuchi
- Department of Biomaterials Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Akira Isogai
- Department of Biomaterials Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
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69
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Fan H, Ma Y, Wan J, Wang Y, Li Z, Chen Y. Adsorption properties and mechanisms of novel biomaterials from banyan aerial roots via simple modification for ciprofloxacin removal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 708:134630. [PMID: 31806343 DOI: 10.1016/j.scitotenv.2019.134630] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 08/26/2019] [Accepted: 09/22/2019] [Indexed: 06/10/2023]
Abstract
The study investigated ciprofloxacin (CIP) adsorption capacity of the novel biomaterials prepared from banyan aerial roots by simple thermochemical modification. Pretreated banyan aerial root fibers were modified with a green reagent citric acid (1 M) at 90, 120 and 150 °C, which enhanced the fiber adsorption capacity revealed by characterization and adsorption tests. Several characterization methods were applied to exploring the surface morphologies and physicochemical properties of unmodified banyan aerial roots (UBARs) and modified banyan aerial roots (T-MBARs, T stands for the modification temperature). Based on SEM images and N2 adsorption/desorption isotherms, the modification resulted in decrease of the specific surface area owing to cellulose molecular linking. In that case, the improved CIP adsorption of MBARs might be attributed to the larger carboxyl quantity and stronger electronegativity manifested via FTIR spectra and zeta potential analysis. Through the adsorption experiments, the optimal pH value of 8 and the suitable absorbent dosage of 0.03 g were obtained. The simulation results showed that the Freundlich model can fit the adsorption thermodynamic data quite well, while the kinetic data was simulated preferably by the pseudo-second-order kinetic equation signifying the chemical adsorption process, and the intra-particle diffusion was involved in the adsorption consisted of three stages. The findings of batch experiments under diverse operations represented that MBARs purified aqueous CIP better than UBARs, closely related to the superior electronegativity. Both characterization and adsorption studies illustrated the dominant role of electrostatic interaction during CIP removal, accompanied by hydrogen bonding and diffusion interaction besides. The present work suggested that MBAR fibers could possess a promising application to ciprofloxacin potent removal from aqueous solutions.
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Affiliation(s)
- Huimin Fan
- School of Environment and Energy, South China University of Technology, 382 Zhonghuan Road East, Panyu District, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China.
| | - Yongwen Ma
- School of Environment and Energy, South China University of Technology, 382 Zhonghuan Road East, Panyu District, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Sino-Singapore International Joint Research Institute, Guangzhou 510006, China; Guangdong Plant Fiber High-Valued Cleaning Utilization Engineering Technology Research Center, Guangzhou 510640, China.
| | - Jinquan Wan
- School of Environment and Energy, South China University of Technology, 382 Zhonghuan Road East, Panyu District, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Sino-Singapore International Joint Research Institute, Guangzhou 510006, China; Guangdong Plant Fiber High-Valued Cleaning Utilization Engineering Technology Research Center, Guangzhou 510640, China.
| | - Yan Wang
- School of Environment and Energy, South China University of Technology, 382 Zhonghuan Road East, Panyu District, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Guangdong Plant Fiber High-Valued Cleaning Utilization Engineering Technology Research Center, Guangzhou 510640, China.
| | - Zhen Li
- School of Environment and Energy, South China University of Technology, 382 Zhonghuan Road East, Panyu District, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
| | - Yun Chen
- School of Environment and Energy, South China University of Technology, 382 Zhonghuan Road East, Panyu District, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
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70
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Tavakolian M, Jafari SM, van de Ven TGM. A Review on Surface-Functionalized Cellulosic Nanostructures as Biocompatible Antibacterial Materials. NANO-MICRO LETTERS 2020; 12:73. [PMID: 34138290 PMCID: PMC7770792 DOI: 10.1007/s40820-020-0408-4] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 02/06/2020] [Indexed: 05/07/2023]
Abstract
As the most abundant biopolymer on the earth, cellulose has recently gained significant attention in the development of antibacterial biomaterials. Biodegradability, renewability, strong mechanical properties, tunable aspect ratio, and low density offer tremendous possibilities for the use of cellulose in various fields. Owing to the high number of reactive groups (i.e., hydroxyl groups) on the cellulose surface, it can be readily functionalized with various functional groups, such as aldehydes, carboxylic acids, and amines, leading to diverse properties. In addition, the ease of surface modification of cellulose expands the range of compounds which can be grafted onto its structure, such as proteins, polymers, metal nanoparticles, and antibiotics. There are many studies in which cellulose nano-/microfibrils and nanocrystals are used as a support for antibacterial agents. However, little is known about the relationship between cellulose chemical surface modification and its antibacterial activity or biocompatibility. In this study, we have summarized various techniques for surface modifications of cellulose nanostructures and its derivatives along with their antibacterial and biocompatibility behavior to develop non-leaching and durable antibacterial materials. Despite the high effectiveness of surface-modified cellulosic antibacterial materials, more studies on their mechanism of action, the relationship between their properties and their effectivity, and more in vivo studies are required.
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Affiliation(s)
- Mandana Tavakolian
- Department of Chemical Engineering, McGill University, Montreal, QC, H3A 0C5, Canada
- Pulp and Paper Research Center, McGill University, Montreal, QC, H3A 0C7, Canada
- Quebec Centre for Advanced Materials (QCAM/CQMF), Montreal, Canada
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran.
| | - Theo G M van de Ven
- Pulp and Paper Research Center, McGill University, Montreal, QC, H3A 0C7, Canada.
- Quebec Centre for Advanced Materials (QCAM/CQMF), Montreal, Canada.
- Department of Chemistry, McGill University, Montreal, QC, H3A 0B8, Canada.
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71
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Affiliation(s)
- Andreas Mautner
- Polymer and Composite Engineering (PaCE) GroupInstitute of Materials Chemistry and Research, University of Vienna Vienna Austria
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72
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Milanovic J, Schiehser S, Potthast A, Kostic M. Stability of TEMPO-oxidized cotton fibers during natural aging. Carbohydr Polym 2020; 230:115587. [DOI: 10.1016/j.carbpol.2019.115587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 11/06/2019] [Accepted: 11/07/2019] [Indexed: 10/25/2022]
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73
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Huang C, Ji H, Yang Y, Guo B, Luo L, Meng Z, Fan L, Xu J. TEMPO-oxidized bacterial cellulose nanofiber membranes as high-performance separators for lithium-ion batteries. Carbohydr Polym 2020; 230:115570. [DOI: 10.1016/j.carbpol.2019.115570] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 11/03/2019] [Accepted: 11/04/2019] [Indexed: 01/31/2023]
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74
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Calabrese V, da Silva MA, Schmitt J, Hossain KMZ, Scott JL, Edler KJ. Charge-driven interfacial gelation of cellulose nanofibrils across the water/oil interface. SOFT MATTER 2020; 16:357-365. [PMID: 31720672 DOI: 10.1039/c9sm01551e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Interfacial gels, obtained by the interaction of water-dispersible oxidised cellulose nanofibrils (OCNF) and oil-soluble oleylamine (OA), were produced across water/oil (W/O) interfaces. Surface rheology experiments showed that the complexation relies on the charge coupling between the negatively-charged OCNF and OA. Complexation across the W/O interface was found to be dependent on the ζ-potential of the OCNF (modulated by electrolyte addition), leading to different interfacial properties. Spontaneous OCNF adsorption at the W/O interface occurred for particles with ζ-potential more negative than -30 mV, resulting in the formation of interfacial gels; whilst for particles with ζ-potential of ca. -30 mV, spontaneous adsorption occurred, coupled with augmented interfibrillar interactions, yielding stronger and tougher interfacial gels. On the contrary, charge neutralisation of OCNF (ζ-potential values more positive than -30 mV) did not allow spontaneous adsorption of OCNF at the W/O interface. In the case of favourable OCNF adsorption, the interfacial gel was found to embed oil-rich droplets - a spontaneous emulsification process.
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Affiliation(s)
- Vincenzo Calabrese
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
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75
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Ranaivoarimanana NJ, Habaki X, Uto T, Kanomata K, Yui T, Kitaoka T. Nanocellulose enriches enantiomers in asymmetric aldol reactions. RSC Adv 2020; 10:37064-37071. [PMID: 35521245 PMCID: PMC9057038 DOI: 10.1039/d0ra07412h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 09/25/2020] [Indexed: 12/26/2022] Open
Abstract
Catalytically inactive cellulose nanofibers with crystalline solid surfaces enhance highly enantioselective organocatalysis at the interface in proline-mediated aldol reactions.
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Affiliation(s)
| | - Xin Habaki
- Department of Agro-Environmental Sciences
- Graduate School of Bioresource and Bioenvironmental Sciences
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Takuya Uto
- Organization for Promotion of Tenure Track
- University of Miyazaki
- Miyazaki 889-2192
- Japan
| | - Kyohei Kanomata
- Department of Agro-Environmental Sciences
- Graduate School of Bioresource and Bioenvironmental Sciences
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Toshifumi Yui
- Department of Applied Chemistry
- Faculty of Engineering
- University of Miyazaki
- Miyazaki 889-2192
- Japan
| | - Takuya Kitaoka
- Department of Agro-Environmental Sciences
- Graduate School of Bioresource and Bioenvironmental Sciences
- Kyushu University
- Fukuoka 819-0395
- Japan
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76
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Plappert SF, Liebner FW, Konnerth J, Nedelec JM. Anisotropic nanocellulose gel–membranes for drug delivery: Tailoring structure and interface by sequential periodate–chlorite oxidation. Carbohydr Polym 2019; 226:115306. [DOI: 10.1016/j.carbpol.2019.115306] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 08/31/2019] [Accepted: 09/07/2019] [Indexed: 12/12/2022]
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77
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Mendoza DJ, Browne C, Raghuwanshi VS, Simon GP, Garnier G. One-shot TEMPO-periodate oxidation of native cellulose. Carbohydr Polym 2019; 226:115292. [DOI: 10.1016/j.carbpol.2019.115292] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/28/2019] [Accepted: 09/03/2019] [Indexed: 10/26/2022]
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78
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Cui X, Honda T, Asoh TA, Uyama H. Cellulose modified by citric acid reinforced polypropylene resin as fillers. Carbohydr Polym 2019; 230:115662. [PMID: 31887947 DOI: 10.1016/j.carbpol.2019.115662] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 11/18/2019] [Accepted: 11/22/2019] [Indexed: 11/20/2022]
Abstract
The greatest challenge hindering the use of cellulose as a reinforcing filler in polymeric composites is its poor compatibility due to the inherent hydrophilicity of cellulose and the hydrophobic nature of polymeric matrices. To solve this issue, we demonstrate an effective water-based method to render the cellulose surface with high carboxyl content through the esterification of hydroxyl groups with citric acid in a solid phase reaction without the use of noxious solvents. The modified cellulose was then further hydrophobized by grafting magnesium stearate to the surface. Consequently, the flexural properties of PP composites reinforced by the hydrophobized cellulose fillers were greatly improved compared to those of composites containing hydrophilic cellulose and pure PP resin. The surface modification conditions and filler proportions in composites were optimized. Because of the innocuity and cost-efficiency of citric acid, we believe that citric acid-modified cellulose has immense potential as a sustainable and cost-effective reinforcing filler.
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Affiliation(s)
- Xinnan Cui
- Department of Applied Chemistry, Osaka University, Suita, 565-0871, Japan.
| | - Toshiki Honda
- Department of Applied Chemistry, Osaka University, Suita, 565-0871, Japan.
| | - Taka-Aki Asoh
- Department of Applied Chemistry, Osaka University, Suita, 565-0871, Japan.
| | - Hiroshi Uyama
- Department of Applied Chemistry, Osaka University, Suita, 565-0871, Japan.
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79
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Bertsch P, Arcari M, Geue T, Mezzenga R, Nyström G, Fischer P. Designing Cellulose Nanofibrils for Stabilization of Fluid Interfaces. Biomacromolecules 2019; 20:4574-4580. [DOI: 10.1021/acs.biomac.9b01384] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Pascal Bertsch
- Institute of Food Nutrition and Health, ETH Zurich, 8092 Zurich, Switzerland
| | - Mario Arcari
- Institute of Food Nutrition and Health, ETH Zurich, 8092 Zurich, Switzerland
| | - Thomas Geue
- Laboratory of Neutron Scattering and Imaging, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - Raffaele Mezzenga
- Institute of Food Nutrition and Health, ETH Zurich, 8092 Zurich, Switzerland
| | - Gustav Nyström
- Institute of Food Nutrition and Health, ETH Zurich, 8092 Zurich, Switzerland
- Laboratory for Cellulose & Wood Materials, EMPA, 8600 Dübendorf, Switzerland
| | - Peter Fischer
- Institute of Food Nutrition and Health, ETH Zurich, 8092 Zurich, Switzerland
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80
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Qin F, Fang Z, Zhou J, Sun C, Chen K, Ding Z, Li G, Qiu X. Efficient Removal of Cu2+ in Water by Carboxymethylated Cellulose Nanofibrils: Performance and Mechanism. Biomacromolecules 2019; 20:4466-4475. [DOI: 10.1021/acs.biomac.9b01198] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | - Zhiqiang Fang
- South China Institute of Collaborative Innovation, South China University of Technology, Dongguan 221116, Guangdong, P. R. China
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81
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Ono Y, Fukui S, Funahashi R, Isogai A. Relationship of Distribution of Carboxy Groups to Molar Mass Distribution of TEMPO-Oxidized Algal, Cotton, and Wood Cellulose Nanofibrils. Biomacromolecules 2019; 20:4026-4034. [PMID: 31525036 DOI: 10.1021/acs.biomac.9b01110] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Distributions of carboxy groups among the molecules in 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose nanofibrils (TOCNs) prepared from wood, cotton, and algal celluloses were investigated. Most C6-carboxy groups in TOCNs were esterified with anthracene-methyl (-CH2C14H9) groups, showing an ultraviolet light (UV) absorption peak at 365 nm. The anthracene-methylated TOCNs were dissolved in 8% (w/w) lithium chloride/N,N-dimethylacetamide (LiCl/DMAc). After dilution to 1% LiCl/DMAc, the solutions were subjected to size-exclusion chromatography with multiangle laser-light scattering, refractive index, and UV detection. For algal TOCN, C6-carboxy group-rich molecules were present predominantly in the low-molar-mass region, which was consistent with the core-clad cellulose chain packing structures in individual algal cellulose microfibrils and partial depolymerization of the oxidized cellulose molecules. In contrast, wood and cotton TOCNs had almost homogeneous distributions of C6-carboxy groups in all molar mass regions, which could not be explained in terms of the simple core-clad cellulose chain packing structures.
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Affiliation(s)
- Yuko Ono
- Department of Biomaterials Science, Graduate School of Agricultural and Life Sciences , The University of Tokyo , Tokyo 113-8657 , Japan
| | - Shunsuke Fukui
- Department of Biomaterials Science, Graduate School of Agricultural and Life Sciences , The University of Tokyo , Tokyo 113-8657 , Japan
| | - Ryunosuke Funahashi
- Department of Biomaterials Science, Graduate School of Agricultural and Life Sciences , The University of Tokyo , Tokyo 113-8657 , Japan
| | - Akira Isogai
- Department of Biomaterials Science, Graduate School of Agricultural and Life Sciences , The University of Tokyo , Tokyo 113-8657 , Japan
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82
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Li M, Messele SA, Boluk Y, Gamal El-Din M. Isolated cellulose nanofibers for Cu (II) and Zn (II) removal: performance and mechanisms. Carbohydr Polym 2019; 221:231-241. [DOI: 10.1016/j.carbpol.2019.05.078] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 04/04/2019] [Accepted: 05/26/2019] [Indexed: 11/16/2022]
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83
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Shi Q, Liu D, Wang Y, Zhao Y, Yang X, Huang J. High-Performance Sodium-Ion Battery Anode via Rapid Microwave Carbonization of Natural Cellulose Nanofibers with Graphene Initiator. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1901724. [PMID: 31460708 DOI: 10.1002/smll.201901724] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 08/16/2019] [Indexed: 05/16/2023]
Abstract
Cellulose is a promising natural bio-macromolecule due to its abundance, renewability and low cost. Here, a new method is developed to prepare pre-sodiated carbonaceous anodes for sodium-ion batteries (SIBs) from cellulose nanofibers (CNFs) under microwave irradiation for potential ultrafast and large-scale manufacturing. While direct carbonization of CNFs through microwave treatment is usually impossible due to the weak microwave absorption of CNFs, it is found that a small amount of reduced graphene oxide (rGO) can act as an effective initiator. Microwaving rGO releases extremely high energy, giving rise to local ultrahigh temperature as well as ultrahigh heating rate, which then induces the fast carbonization of CNFs and the production of pre-sodiated carbonaceous materials within seconds. The sodium in the carbonaceous materials, introduced from the carbonization of CNFs containing sodium-ion carboxyl, offer favorable spaces for sodiation/desodiation, which improves the electrochemical performance of the sodium-inserted carbonaceous anode. When the microwaved rGO-CNF (MrGO-CNF) is used as an anode for SIBs, a high initial capacity of 558 mAh g-1 is delivered and the capacity of 340 mAh g-1 remains after 200 cycles. The excellent reversible capacity and cycling stability indicate MrGO-CNF a promising anode for sodium-ion batteries.
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Affiliation(s)
- Qianqian Shi
- Interdisciplinary Materials Research Center, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, P. R. China
| | - Dapeng Liu
- Interdisciplinary Materials Research Center, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, P. R. China
| | - Yan Wang
- Interdisciplinary Materials Research Center, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, P. R. China
| | - Yiwei Zhao
- Interdisciplinary Materials Research Center, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, P. R. China
| | - Xiaowei Yang
- Interdisciplinary Materials Research Center, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, P. R. China
| | - Jia Huang
- Interdisciplinary Materials Research Center, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, P. R. China
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84
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Fujisawa S, Togawa E, Kuroda K, Saito T, Isogai A. Fabrication of ultrathin nanocellulose shells on tough microparticles via an emulsion-templated colloidal assembly: towards versatile carrier materials. NANOSCALE 2019; 11:15004-15009. [PMID: 31298680 DOI: 10.1039/c9nr02612f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Here, we develop a robust approach to forming an ∼8 nm thick cellulose nanofiber (CNF) shell on polymer microparticles through an emulsion-templated assembly. The median diameter of the CNF-shelled microparticles was 3.0 μm. The microparticles showed good dispersibility in water with a ζ-potential of -46.7 ± 0.5 mV and had good mechanical resistance. The surface CNF shells showed pH-sensitive drug loading/releasing properties, which suggest potential for a range of therapeutic and biomedical applications.
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Affiliation(s)
- Shuji Fujisawa
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan.
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85
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Thermal and Morphology Properties of Cellulose Nanofiber from TEMPO-oxidized Lower part of Empty Fruit Bunches (LEFB). OPEN CHEM 2019. [DOI: 10.1515/chem-2019-0063] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
AbstractCellulose nanofiber (CNF) gel has been obtained from TEMPO-oxidized differently treated lower part of empty fruit bunches (LEFB) of oil palm. Three kinds of materials were initially used: (i) α-cellulose, (ii) raw LEFB fiber two-times bleaching, and (iii) raw LEFB three-times bleaching. The obtained nanofibers (CNF1, CNF2 and CNF3, respectively) were then characterized using several methods, e.g. FT-IR, SEM, UV-Visible, TEM, XRD and TGA. The LEFB at different levels of bleaching showed that the Kappa number decreased with the increase of the bleaching levels. The decrease of lignin and hemicellulose content affected the increase of the yield of fibrillation and optical transmittance of CNF2 and CNF3 gels. The FT-IR analysis confirmed the presence of lignin and hemicellulose in the CNF2 and CNF3 film. Based on TEM analysis, the lignin and hemicellulose content significantly affected the particle structure of CNFs,i.e. CNF1 was found as a bundle of fibril, while the CNF2 and CNF3 were visualized as individual fibers and interwoven nanofibril overlapping each other, respectively. The XRD data of the CNF’s film showed that CNF2 and CNF3 have a lower crystallinity index (CI) than CNF1. The presence of lignin and hemicellulose in the CNFs decreased its decomposition temperature.
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86
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Pal N, Banerjee S, Roy P, Pal K. Reduced graphene oxide and PEG-grafted TEMPO-oxidized cellulose nanocrystal reinforced poly-lactic acid nanocomposite film for biomedical application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109956. [PMID: 31499971 DOI: 10.1016/j.msec.2019.109956] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 04/13/2019] [Accepted: 07/05/2019] [Indexed: 10/26/2022]
Abstract
In this work, both cellulose nanocrystals (CNC) and reduced graphene oxide (rGO) were reinforced into poly-lactic acid (PLA) to enhance the stiffness, strength and thermal stability of the pure polymer i.e. PLA. To enhance the uniform dispersion of CNC (which is a major concern with PLA) and rGO in the hydrophobic polymer matrix, CNC's surface was first modified using TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical) oxidation method followed by surface grafting of TEMPO-oxidized CNC (TOCNC) performed with polyethylene glycol (PEG). The PEG-grafting on crystalline region of cellulose nanofibrils was achieved through ionic bonds by applying ion-exchange method (simple and easy method). The obtained PEG-grafted-TOCNC indicated uniform dispersion at the nanoelement level in non-polar (organic) compound i.e. chloroform. Further, the PEG-grafted-TOCNC/chloroform with different blend ratios, PLA/chloroform and rGO/chloroform solution were mixed together and solvent casted onto a petri-dish to obtain PLA/PEG-TOCNC/rGO nanocomposite film. The tensile strength and thermal stability were remarkably improved for the film containing highest wt% of modified CNC. In addition to this, the film showed reduced water vapor barrier properties and antioxidant activity which enables it to be used as a packaging films. Moreover, the film displayed negligible toxicity and cytocompatibility to fibroblast cells C3H10T1/2. These attractive properties of PLA/PEG-TOCNC/rGO nanocomposite film render the application of film as a scaffold in tissue engineering field and in packaging application.
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Affiliation(s)
- Nidhi Pal
- Department of Mechanical and Industrial Engineering, IIT Roorkee, Uttarakhand 247667, India
| | - Somesh Banerjee
- Department of Biotechnology, IIT Roorkee, Uttarakhand 247667, India
| | - Partha Roy
- Department of Biotechnology, IIT Roorkee, Uttarakhand 247667, India
| | - Kaushik Pal
- Department of Mechanical and Industrial Engineering, IIT Roorkee, Uttarakhand 247667, India; Centre of Nanotechnology, IIT Roorkee, Uttarakhand 247667, India.
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87
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Zheng D, Zhang Y, Guo Y, Yue J. Isolation and Characterization of Nanocellulose with a Novel Shape from Walnut ( Juglans Regia L.) Shell Agricultural Waste. Polymers (Basel) 2019; 11:E1130. [PMID: 31277229 PMCID: PMC6680793 DOI: 10.3390/polym11071130] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 06/21/2019] [Accepted: 06/24/2019] [Indexed: 01/21/2023] Open
Abstract
Herein, walnut shell (WS) was utilized as the raw material for the production of purified cellulose. The production technique involves multiple treatments, including alkaline treatment and bleaching. Furthermore, two nanocellulose materials were derived from WS by 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO) oxidation and sulfuric acid hydrolysis, demonstrating the broad applicability and value of walnuts. The micromorphologies, crystalline structures, chemical functional groups, and thermal stabilities of the nanocellulose obtained via TEMPO oxidation and sulfuric acid hydrolysis (TNC and SNC, respectively) were comprehensively characterized. The TNC exhibited an irregular block structure, whereas the SNC was rectangular in shape, with a length of 55-82 nm and a width of 49-81 nm. These observations are expected to provide insight into the potential of utilizing WSs as the raw material for preparing nanocellulose, which could address the problems of the low-valued utilization of walnuts and pollution because of unused WSs.
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Affiliation(s)
- Dingyuan Zheng
- College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Yangyang Zhang
- College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Yunfeng Guo
- College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Jinquan Yue
- College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China.
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China.
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88
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Wang J, Liu X, Jin T, He H, Liu L. Preparation of nanocellulose and its potential in reinforced composites: A review. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:919-946. [DOI: 10.1080/09205063.2019.1612726] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jie Wang
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, China
| | - Xin Liu
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, China
| | - Tao Jin
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, China
| | - Haifeng He
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, China
| | - Lei Liu
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, China
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89
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Biliuta G, Coseri S. Cellulose: A ubiquitous platform for ecofriendly metal nanoparticles preparation. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.01.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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90
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Arcari M, Zuccarella E, Axelrod R, Adamcik J, Sánchez-Ferrer A, Mezzenga R, Nyström G. Nanostructural Properties and Twist Periodicity of Cellulose Nanofibrils with Variable Charge Density. Biomacromolecules 2019; 20:1288-1296. [DOI: 10.1021/acs.biomac.8b01706] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mario Arcari
- ETH Zurich, Department of Health Sciences and Technology, Schmelzbergstrasse 9, LFO E23, 8092, Zurich, Switzerland
| | - Elena Zuccarella
- ETH Zurich, Department of Health Sciences and Technology, Schmelzbergstrasse 9, LFO E23, 8092, Zurich, Switzerland
| | - Robert Axelrod
- ETH Zurich, Department of Health Sciences and Technology, Schmelzbergstrasse 9, LFO E23, 8092, Zurich, Switzerland
| | - Jozef Adamcik
- ETH Zurich, Department of Health Sciences and Technology, Schmelzbergstrasse 9, LFO E23, 8092, Zurich, Switzerland
| | - Antoni Sánchez-Ferrer
- ETH Zurich, Department of Health Sciences and Technology, Schmelzbergstrasse 9, LFO E23, 8092, Zurich, Switzerland
| | - Raffaele Mezzenga
- ETH Zurich, Department of Health Sciences and Technology, Schmelzbergstrasse 9, LFO E23, 8092, Zurich, Switzerland
- ETH Zurich, Department of Materials, Wolfgang-Pauli-Strasse 10, 8093 Zurich, Switzerland
| | - Gustav Nyström
- ETH Zurich, Department of Health Sciences and Technology, Schmelzbergstrasse 9, LFO E23, 8092, Zurich, Switzerland
- EMPA, Laboratory for Cellulose & Wood Materials, Überlandstrasse 129, 8600 Dübendorf, Switzerland
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91
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Li R, Zhang K, Chen G. Highly Transparent, Flexible and Conductive CNF/AgNW Paper for Paper Electronics. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E322. [PMID: 30669583 PMCID: PMC6356505 DOI: 10.3390/ma12020322] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/10/2019] [Accepted: 01/18/2019] [Indexed: 11/16/2022]
Abstract
Conductive paper has the advantages of being low-cost, lightweight, disposable, flexible, and foldable, giving it promising potential in future electronics. However, mainstream conductive papers are opaque and rigid, which seriously affect the wide application of conductive paper. In this paper, we demonstrate a highly transparent, flexible, and conductive paper, fabricated by mixing cellulose nanofibers (CNFs) with silver nanowires (AgNWs) and then plasticizing with choline chloride/urea solvent. The as-prepared CNF/AgNW paper showed high transparency (~90% transmittance) and flexibility (~27% strain), and low sheet resistance (56 Ω/sq). Moreover, the resistance change of CNF/AgNW paper increased only ~1.1% after 3000 bending-unbending cycles under a 150° large angle, implying a long working life and stability. In view of this, our methodology has the potential to open a new powerful route for fabrication of paper-based green electronics.
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Affiliation(s)
- Ren'ai Li
- State Key Laboratory of Pulp & Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Kaili Zhang
- State Key Laboratory of Pulp & Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Guangxue Chen
- State Key Laboratory of Pulp & Paper Engineering, South China University of Technology, Guangzhou 510640, China.
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92
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Liu P, Milletto C, Monti S, Zhu C, Mathew AP. Design of ultrathin hybrid membranes with improved retention efficiency of molecular dyes. RSC Adv 2019; 9:28657-28669. [PMID: 35529612 PMCID: PMC9071203 DOI: 10.1039/c9ra04435c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 08/20/2019] [Indexed: 11/21/2022] Open
Abstract
Nanocellulose–graphene oxide ultrathin coatings for water purification membranes with excellent swelling resistance, permeability and dyes retention are presented.
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Affiliation(s)
- Peng Liu
- Division of Materials and Environmental Chemistry
- Stockholm University
- Stockholm
- Sweden
| | - Charles Milletto
- Division of Materials and Environmental Chemistry
- Stockholm University
- Stockholm
- Sweden
| | - Susanna Monti
- CNR-ICCOM
- Institute of Chemistry of Organometallic Compounds
- I-56124 Pisa
- Italy
| | - Chuantao Zhu
- Division of Materials and Environmental Chemistry
- Stockholm University
- Stockholm
- Sweden
| | - Aji P. Mathew
- Division of Materials and Environmental Chemistry
- Stockholm University
- Stockholm
- Sweden
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93
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Preparation and Characterization of Bacterial Cellulose-Carbon Dot Hybrid Nanopaper for Potential Sensing Applications. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app9010107] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Green and facile approaches aiming at the manufacture of biocompatible paper-based optical sensors reporting the presence of photoluminescence (PL) modulating compounds is an emerging field of research. This study investigates the preparation of bacterial cellulose nanopaper containing covalently immobilized carbon dots for potential biosensing applications. Preliminary work of this feasibility study included TEMPO-mediated ((2,2,6,6-tetramethylpiperidin-1-yl)oxyl-mediated) oxidation and nanofibrillation of bacterial cellulose (TOBC) on the one hand as well as synthesis and comparative analysis of different types of carbon dots (CDs) on the other hand. The two source materials of the targeted functional nanopaper were finally linked to each other by two different N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride/ N-hydroxysuccinimide (EDC/NHS) coupling approaches to clarify whether grafting of CDs prior to or after TOBC paper formation would be the method of choice. Synthesis of the carbon nanodots was accomplished by microwave-assisted co-hydrothermolysis of appropriate precursor compounds. After isolation and purification by dialysis particles in the single-digit nanometer-range were obtained and characterized with regard to their photoluminescence properties in terms of emission wavelength, pH stability, and quantum yield. All types of synthesized CDs reached their PL maxima (450–480 nm; light blue) in a narrow excitation wavelength range of 340–360 nm. Variation of molar (C/N) ratio of the CD precursors and substitution of the nitrogen donor EDEA by urea increased PL and quantum yield (QY), respectively. The highest relative QY of nearly 32% was obtained for CDs synthesized from citric acid and urea. PL of all CDs was virtually insensitive to pH changes in the range of 4–10. Tensile testing of hybrid nanopaper prepared after EDC/NHS-mediated grafting of GEA-type CDs onto TOBC (0.52 mmol·g−1 COOH) in dispersion state revealed that both stiffness and strength are not compromised by incorporation of carbon dots, while plastic deformation and elongation at break increased slightly compared to nanopaper formed prior to decoration with CDs. Water contact angle of the nanopaper is unaffected by introduction of carbon dots which is supposedly due to the presence of surface amino- and amide groups compensating for the loss of carboxyl groups by grafting.
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94
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Self-Alignment Sequence of Colloidal Cellulose Nanofibers Induced by Evaporation from Aqueous Suspensions. COLLOIDS AND INTERFACES 2018. [DOI: 10.3390/colloids2040071] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Cellulose nanopapers fabricated by drying aqueous colloidal suspensions of cellulose nanofibers (CNFs) have characteristic hierarchic structures, which cause the problem that their optical properties, including their transparency or haze, vary due to the drying processes affecting CNF alignment. It is unclear when and how the colloidal CNFs align in the evaporation–condensation process from the randomly dispersed suspension to form the nanopaper. In this study, we found that the CNFs undergo a self-alignment sequence during the evaporation–condensation process to form chiral nematic nanopaper by observing the birefringence of the drying suspensions from both the top and side for two suspensions with different initial CNF concentrations. The layer structures of the CNFs first form on the surface by condensation of the suspension, owing to water evaporation from the surface. The thickness of the layered structure then increases and the CNFs begin to align within each layer plane, finally forming chiral nematic structures. A birefringence difference also occurs for dried nanopapers with similar transparency or haze because of the initial CNF concentration.
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95
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Ribeiro PLL, Figueiredo TVB, Moura LE, Druzian JI. Chemical modification of cellulose nanocrystals and their application in thermoplastic starch (TPS) and poly(3-hydroxybutyrate) (P3HB) nanocomposites. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4494] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | | | - Lívia Eloy Moura
- Department of Bromatological Analysis, College of Pharmacy; Federal University of Bahia; Salvador City Brazil
| | - Janice Izabel Druzian
- Department of Bromatological Analysis, College of Pharmacy; Federal University of Bahia; Salvador City Brazil
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96
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Carboxylated nanocellulose foams as superabsorbents. J Colloid Interface Sci 2018; 538:433-439. [PMID: 30530081 DOI: 10.1016/j.jcis.2018.11.112] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 11/29/2018] [Accepted: 11/30/2018] [Indexed: 11/24/2022]
Abstract
HYPOTHESIS Carboxylated nanocellulose fibres formed into foam structures can demonstrate superabsorption capacity. Their performance can be engineered by changing process variables. EXPERIMENTS TEMPO-oxidised cellulose nanofibres of varying concentration and surface charge are produced from hardwood kraft pulp. Foams were prepared through a 2-step freezing and lyophilisation process. The absorption capacity of water and saline solution (0.9 wt%) were measured as a function of time and related to the foam structure. FINDINGS The absorption capacity of nanocellulose foams can be manipulated from initial gel properties and processing conditions. Pore structure and distribution of nanocellulose foams are dictated by fibre content and charge density and freezing rate. The best performing foams are at 0.3-0.5 wt%, with a carboxylate concentration of 1.2 mmol/g and frozen at -86 °C before freeze-drying, which can absorb 120 g H2O/g fibre. Fibre surface charge influences the absorption capacity of the foams by dictating the amount of participating carboxylate groups. Absorption capacity in saline (60 g/g) is lower than in deionised water (120 g/g); but is only slightly lower than that of a commercial polyacrylic acid (PAA) SAPs (80 g/g). Nanocellulose foams are attractive renewable alternatives for superabsorbent applications, contributing to a reduction of plastic microspheres.
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97
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Isogai A, Hänninen T, Fujisawa S, Saito T. Review: Catalytic oxidation of cellulose with nitroxyl radicals under aqueous conditions. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.07.007] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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98
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Calabrese V, da Silva MA, Schmitt J, Muñoz-Garcia JC, Gabrielli V, Scott JL, Angulo J, Khimyak YZ, Edler KJ. Surfactant controlled zwitterionic cellulose nanofibril dispersions. SOFT MATTER 2018; 14:7793-7800. [PMID: 30109338 DOI: 10.1039/c8sm00752g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Zwitterionic cellulose nanofibrils (ZCNFs) with an isoelectric point of 3.4 were obtained by grafting glycidyltrimethylammonium chloride onto TEMPO/NaBr/NaOCl-oxidised cellulose nanofibrils. The ZCNF aqueous dispersions were characterized via transmission electron microscopy, rheology and small angle neutron scattering, revealing a fibril-bundle structure with pronounced aggregation at pH 7. Surfactants were successfully employed to tune the stability of the ZCNF dispersions. Upon addition of the anionic surfactant, sodium dodecyl sulfate, the ZCNF dispersion shows individualized fibrils due to electrostatic stabilization. In contrast, upon addition of the cationic species dodecyltrimethylammonium bromide, the dispersion undergoes charge neutralization, leading to more pronounced flocculation.
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Affiliation(s)
- Vincenzo Calabrese
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
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99
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Calabrese V, Muñoz-García JC, Schmitt J, da Silva MA, Scott JL, Angulo J, Khimyak YZ, Edler KJ. Understanding heat driven gelation of anionic cellulose nanofibrils: Combining saturation transfer difference (STD) NMR, small angle X-ray scattering (SAXS) and rheology. J Colloid Interface Sci 2018; 535:205-213. [PMID: 30293046 DOI: 10.1016/j.jcis.2018.09.085] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 09/21/2018] [Accepted: 09/24/2018] [Indexed: 11/18/2022]
Abstract
A novel mechanism of heat-triggered gelation for oxidised cellulose nanofibrils (OCNF) is reported. We demonstrate that a synergistic approach combining rheology, small-angle X-ray scattering (SAXS) and saturation transfer difference NMR (STD NMR) experiments enables a detailed characterisation of gelation at different length scales. OCNF dispersions experience an increase in solid-like behaviour upon heating as evidenced by rheological studies, associated with enhanced interfibrillar interactions measured using SAXS. Interactions result in an increased fibrillar overlap and increased population of confined water molecules monitored by STD NMR. In comparison, cationic cellulose nanofibrils (produced by reaction of cellulose with trimethylglycidylammonium chloride) were found to be heat-unresponsive.
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Affiliation(s)
- Vincenzo Calabrese
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK
| | - Juan C Muñoz-García
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
| | - Julien Schmitt
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK
| | - Marcelo A da Silva
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK
| | - Janet L Scott
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK; Centre for Sustainable Chemical Technology, University of Bath, Claverton Down, Bath BA2 7AY, UK.
| | - Jesús Angulo
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK.
| | - Yaroslav Z Khimyak
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK.
| | - Karen J Edler
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK.
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100
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Rahman NSA, Yhaya MF, Azahari B, Ismail WR. Utilisation of natural cellulose fibres in wastewater treatment. CELLULOSE 2018; 25:4887-4903. [DOI: 10.1007/s10570-018-1935-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 07/07/2018] [Indexed: 09/02/2023]
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