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Azimi B, Rasti A, Fusco A, Macchi T, Ricci C, Hosseinifard MA, Guazzelli L, Donnarumma G, Bagherzadeh R, Latifi M, Roy I, Danti S, Lazzeri A. Bacterial Cellulose Electrospun Fiber Mesh Coated with Chitin Nanofibrils for Eardrum Repair. Tissue Eng Part A 2024; 30:340-356. [PMID: 37962275 DOI: 10.1089/ten.tea.2023.0242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023] Open
Abstract
In this study, we develop a bio-based and bioactive nanofibrous patch based on bacterial cellulose (BC) and chitin nanofibrils (CNs) using an ionic liquid as a solvent for BC, aimed at tympanic membrane (TM) repair. Electrospun BC nanofiber meshes were produced via electrospinning, and surface-modified with CNs using electrospray. The rheology of the BC/ionic liquid system was investigated. The obtained CN/BC meshes underwent comprehensive morphological, physicochemical, and mechanical characterization. Cytotoxicity tests were conducted using L929 mouse fibroblasts, revealing a cell viability of 97.8%. In vivo tests on rabbit skin demonstrated that the patches were nonirritating. Furthermore, the CN/BC fiber meshes were tested in vitro using human dermal keratinocytes (HaCaT cells) and human umbilical vein endothelial cells as model cells for TM perforation healing. Both cell types demonstrated successful growth on these scaffolds. The presence of CNs resulted in improved indirect antimicrobial activity of the electrospun fiber meshes. HaCaT cells exhibited an upregulated mRNA expression at 6 and 24 h of key proinflammatory cytokines crucial for the wound healing process, indicating the potential benefits of CNs in the healing response. Overall, this study presents a natural and eco-sustainable fiber mesh with great promise for applications in TM repair, leveraging the synergistic effects of BC and CNs to possibly enhance tissue regeneration and healing. Impact statement Repair of tympanic membrane perforations following chronic otitis media is a main clinical issue in otologic surgery, where the underlying infection obstacles self-healing. To address this challenge, our study proposes a bio-based patch made of nanoscale carbohydrate materials (i.e., bacterial cellulose electrospun fibers and chitin nanofibrils) processed via green solvents. The scaffold is nonirritating in vivo, and cytocompatible with fibroblasts, endothelial cells, and keratinocytes. In epithelial cells, it stimulates the expression of the antimicrobial peptide human beta defensin 2, with a pathway of cytokine expression compatible with the wound healing process. Therefore, it could be applied with unsolved infective pathology.
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Affiliation(s)
- Bahareh Azimi
- Department of Civil and Industrial Engineering, University of Pisa, Pisa, Italy
| | - Atefeh Rasti
- Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Alessandra Fusco
- Department of Experimental Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Teresa Macchi
- Department of Translational Researches and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Claudio Ricci
- Department of Civil and Industrial Engineering, University of Pisa, Pisa, Italy
| | | | | | - Giovanna Donnarumma
- Department of Experimental Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Roohollah Bagherzadeh
- Institute for Advanced Textile Materials and Technologies (ATMT), Amirkabir University of Technology, Tehran, Iran
| | - Masoud Latifi
- Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Ipsita Roy
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, United Kingdom
| | - Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, Pisa, Italy
| | - Andrea Lazzeri
- Department of Civil and Industrial Engineering, University of Pisa, Pisa, Italy
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2
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Jing S, Wu L, Siciliano AP, Chen C, Li T, Hu L. The Critical Roles of Water in the Processing, Structure, and Properties of Nanocellulose. ACS NANO 2023; 17:22196-22226. [PMID: 37934794 DOI: 10.1021/acsnano.3c06773] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
The cellulose industry depends heavily on water owing to the hydrophilic nature of cellulose fibrils and its potential for sustainable and innovative production methods. The emergence of nanocellulose, with its excellent properties, and the incorporation of nanomaterials have garnered significant attention. At the nanoscale level, nanocellulose offers a higher exposure of hydroxyl groups, making it more intimate with water than micro- and macroscale cellulose fibers. Gaining a deeper understanding of the interaction between nanocellulose and water holds the potential to reduce production costs and provide valuable insights into designing functional nanocellulose-based materials. In this review, water molecules interacting with nanocellulose are classified into free water (FW) and bound water (BW), based on their interaction forces with surface hydroxyls and their mobility in different states. In addition, the water-holding capacity of cellulosic materials and various water detection methods are also discussed. The review also examines water-utilization and water-removal methods in the fabrication, dispersion, and transport of nanocellulose, aiming to elucidate the challenges and tradeoffs in these processes while minimizing energy and time costs. Furthermore, the influence of water on nanocellulose properties, including mechanical properties, ion conductivity, and biodegradability, are discussed. Finally, we provide our perspective on the challenges and opportunities in developing nanocellulose and its interplay with water.
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Affiliation(s)
- Shuangshuang Jing
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Lianping Wu
- Department of Mechanical Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Amanda P Siciliano
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Chaoji Chen
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Teng Li
- Department of Mechanical Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Liangbing Hu
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
- Center for Materials Innovation, University of Maryland, College Park, Maryland 20742, United States
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Fernandes PAR, Coimbra MA. The antioxidant activity of polysaccharides: A structure-function relationship overview. Carbohydr Polym 2023; 314:120965. [PMID: 37173007 DOI: 10.1016/j.carbpol.2023.120965] [Citation(s) in RCA: 40] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023]
Abstract
Over the last years, polysaccharides have been linked to antioxidant effects using both in vitro chemical and biological models. The reported structures, claimed to act as antioxidants, comprise chitosan, pectic polysaccharides, glucans, mannoproteins, alginates, fucoidans, and many others of all type of biological sources. The structural features linked to the antioxidant action include the polysaccharide charge, molecular weight, and the occurrence of non-carbohydrate substituents. The establishment of structure/function relationships can be, however, biased by secondary phenomena that tailor polysaccharides behavior in antioxidant systems. In this sense, this review confronts some basic concepts of polysaccharides chemistry with the current claim of carbohydrates as antioxidants. It critically discusses how the fine structure and properties of polysaccharides can define polysaccharides as antioxidants. Polysaccharides antioxidant action is highly dependent on their solubility, sugar ring structure, molecular weight, occurrence of positive or negatively charged groups, protein moieties and covalently linked phenolic compounds. However, the occurrence of phenolic compounds and protein as contaminants leads to misleading results in methodologies often used for screening and characterization purposes, as well as in vivo models. Despite falling in the concept of antioxidants, the role of polysaccharides must be well defined according with the matrices where they are involved.
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Affiliation(s)
- Pedro A R Fernandes
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Manuel A Coimbra
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
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4
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Dong Q, Zhang X, Qian J, He S, Mao Y, Brozena AH, Zhang Y, Pollard TP, Borodin OA, Wang Y, Chava BS, Das S, Zavalij P, Segre CU, Zhu D, Xu L, Liang Y, Yao Y, Briber RM, Li T, Hu L. A cellulose-derived supramolecule for fast ion transport. SCIENCE ADVANCES 2022; 8:eadd2031. [PMID: 36490337 PMCID: PMC9733924 DOI: 10.1126/sciadv.add2031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 10/28/2022] [Indexed: 06/17/2023]
Abstract
Supramolecular frameworks have been widely synthesized for ion transport applications. However, conventional approaches of constructing ion transport pathways in supramolecular frameworks typically require complex processes and display poor scalability, high cost, and limited sustainability. Here, we report the scalable and cost-effective synthesis of an ion-conducting (e.g., Na+) cellulose-derived supramolecule (Na-CS) that features a three-dimensional, hierarchical, and crystalline structure composed of massively aligned, one-dimensional, and ångström-scale open channels. Using wood-based Na-CS as a model material, we achieve high ionic conductivities (e.g., 0.23 S/cm in 20 wt% NaOH at 25 °C) even with a highly dense microstructure, in stark contrast to conventional membranes that typically rely on large pores (e.g., submicrometers to a few micrometers) to obtain comparable ionic conductivities. This synthesis approach can be universally applied to a variety of cellulose materials beyond wood, including cotton textiles, fibers, paper, and ink, which suggests excellent potential for a number of applications such as ion-conductive membranes, ionic cables, and ionotronic devices.
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Affiliation(s)
- Qi Dong
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD 20742, USA
| | - Xin Zhang
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD 20742, USA
| | - Ji Qian
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD 20742, USA
| | - Shuaiming He
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD 20742, USA
| | - Yimin Mao
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD 20742, USA
- National Institute of Standards and Technology, Gaithersburg, MD 20783, USA
| | - Alexandra H. Brozena
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD 20742, USA
| | - Ye Zhang
- Department of Electrical and Computer Engineering, University of Houston, Houston, TX 77204, USA
- Texas Center for Superconductivity at the University of Houston (TcSUH), Houston, TX 77204, USA
| | - Travis P. Pollard
- Battery Science Branch, Energy Science Division, Sensor and Electron Devices Directorate, DEVCOM Army Research Laboratory, Adelphi, MD 20783, USA
| | - Oleg A. Borodin
- Battery Science Branch, Energy Science Division, Sensor and Electron Devices Directorate, DEVCOM Army Research Laboratory, Adelphi, MD 20783, USA
| | - Yanbin Wang
- School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA
- Department of Mechanical Engineering, University of Maryland College Park, College Park, MD 20742, USA
| | - Bhargav Sai Chava
- Department of Mechanical Engineering, University of Maryland College Park, College Park, MD 20742, USA
| | - Siddhartha Das
- Department of Mechanical Engineering, University of Maryland College Park, College Park, MD 20742, USA
| | - Peter Zavalij
- Department of Chemistry and Biochemistry, University of Maryland College Park, College Park, MD 20742, USA
| | - Carlo U. Segre
- Center for Synchrotron Radiation Research and Instrumentation (CSRRI), Illinois Institute of Technology, Physics Department, Chicago, IL 60616, USA
| | - Dongyang Zhu
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD 20742, USA
| | - Lin Xu
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD 20742, USA
| | - Yanliang Liang
- Department of Electrical and Computer Engineering, University of Houston, Houston, TX 77204, USA
- Texas Center for Superconductivity at the University of Houston (TcSUH), Houston, TX 77204, USA
| | - Yan Yao
- Department of Electrical and Computer Engineering, University of Houston, Houston, TX 77204, USA
- Texas Center for Superconductivity at the University of Houston (TcSUH), Houston, TX 77204, USA
| | - Robert M. Briber
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD 20742, USA
| | - Tian Li
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD 20742, USA
- School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Liangbing Hu
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD 20742, USA
- Center for Materials Innovation, University of Maryland College Park, College Park, MD 20742, USA
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5
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Jadhav S, Ganvir V, Shinde Y, Revankar S, Thakre S, Singh MK. Carboxylate functionalized imidazolium-based zwitterions as benign and sustainable solvent for cellulose dissolution: Synthesis and characterization. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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Naserifar S, Swensson B, Bernin D, Hasani M. Aqueous N,N-dimethylmorpholinium hydroxide as a novel solvent for cellulose. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110822] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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7
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Scattering studies of the size and structure of cellulose dissolved in aqueous hydroxide base solvents. Carbohydr Polym 2021; 274:118634. [PMID: 34702457 DOI: 10.1016/j.carbpol.2021.118634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/31/2021] [Accepted: 08/31/2021] [Indexed: 11/21/2022]
Abstract
Combining NaOH with other hydroxide bases with superior dissolution properties can be a means of improving dissolution of cellulose. However, this raises questions about how the size and structure of cellulose vary when dissolved in different hydroxide bases. Here, cellulose in aqueous solutions of NaOH, Tetramethylammonium hydroxide (TMAH), Benzyltrimethylammonium hydroxide (Triton B) and previously studied equimolar solutions of NaOH/TMAH and NaOH/Triton B were investigated using small angle X-ray scattering, static and dynamic light scattering. The results show that cellulose in NaOH(aq) is largely aggregated and that the more hydrophobic TMAH and Triton are capable of molecularly dissolving cellulose into worm-like conformations, stiffer than in NaOH. The dissolution properties of mixtures are highly dependent on the compatibility of the individual bases; in line with previous observations of the properties of the solutions which now could be correlated to the structure of the cellulose on a nano- and microscale.
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8
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Abstract
Desoxyribosenucleic acid, DNA, and cellulose molecules self-assemble in aqueous systems. This aggregation is the basis of the important functions of these biological macromolecules. Both DNA and cellulose have significant polar and nonpolar parts and there is a delicate balance between hydrophilic and hydrophobic interactions. The hydrophilic interactions related to net charges have been thoroughly studied and are well understood. On the other hand, the detailed roles of hydrogen bonding and hydrophobic interactions have remained controversial. It is found that the contributions of hydrophobic interactions in driving important processes, like the double-helix formation of DNA and the aqueous dissolution of cellulose, are dominating whereas the net contribution from hydrogen bonding is small. In reviewing the roles of different interactions for DNA and cellulose it is useful to compare with the self-assembly features of surfactants, the simplest case of amphiphilic molecules. Pertinent information on the amphiphilic character of cellulose and DNA can be obtained from the association with surfactants, as well as on modifying the hydrophobic interactions by additives.
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9
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Chen SQ, Cao X, Li Z, Zhu J, Li L. Effect of lyophilization on the bacterial cellulose produced by different Komagataeibacter strains to adsorb epicatechin. Carbohydr Polym 2020; 246:116632. [DOI: 10.1016/j.carbpol.2020.116632] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 06/08/2020] [Accepted: 06/09/2020] [Indexed: 11/24/2022]
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10
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11
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Zhou L, Pan F, Liu Y, Kang Z, Zeng S, Nie Y. Study on the regularity of cellulose degradation in ionic liquids. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113153] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Zaccaron S, Henniges U, Potthast A, Rosenau T. How alkaline solvents in viscosity measurements affect data for oxidatively damaged celluloses. Cuoxam and Cadoxen. Carbohydr Polym 2020; 240:116251. [PMID: 32475551 DOI: 10.1016/j.carbpol.2020.116251] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/30/2020] [Accepted: 04/01/2020] [Indexed: 11/27/2022]
Abstract
The effect of the degradation induced by the solvents for cellulose cuoxam and cadoxen and its dependency on the nature of the carbonyls in oxidatively-damaged cellulosics was investigated by combining a novel approach of sample regeneration and gel permeation chromatography coupled with carbonyl-selective labelling for reliable molecular characterization. The type of cellulosic pulp, degree and mode of oxidation and dissolution time were considered. Results show that the main discriminating factors in determining the degradation of oxidatively-damaged celluloses in alkaline dissolving media are: (1) the type of pulp, i.e. hemicellulose-containing pulps are more severely compromised; (2) of particular relevance, the prior oxidation mechanism, meaning not only the amount of oxidized moieties (greater oxidation, greater solvent-induced damage) but also their position on the chains (i.e. peroxide-oxidized cellulose is more unstable than hypochlorite-oxidized cellulose).
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Affiliation(s)
- Sara Zaccaron
- University of Natural Resources and Life Sciences Vienna, Dept Chemistry, Institute for Chemistry of Renewable Resources, Muthgasse 18, 1190 Vienna, Konrad Lorenz Strasse 24, A - 3430, Tulln, Austria
| | - Ute Henniges
- University of Natural Resources and Life Sciences Vienna, Dept Chemistry, Institute for Chemistry of Renewable Resources, Muthgasse 18, 1190 Vienna, Konrad Lorenz Strasse 24, A - 3430, Tulln, Austria
| | - Antje Potthast
- University of Natural Resources and Life Sciences Vienna, Dept Chemistry, Institute for Chemistry of Renewable Resources, Muthgasse 18, 1190 Vienna, Konrad Lorenz Strasse 24, A - 3430, Tulln, Austria.
| | - Thomas Rosenau
- University of Natural Resources and Life Sciences Vienna, Dept Chemistry, Institute for Chemistry of Renewable Resources, Muthgasse 18, 1190 Vienna, Konrad Lorenz Strasse 24, A - 3430, Tulln, Austria; Johan Gadolin Process Chemistry Centre, Åbo Akademi University, Porthansgatan 3, Åbo/Turku, FI-20500, Finland
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14
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Friend DFL, Leyva González ME, Caraballo MM, de Queiroz AAA. Biological properties of electrospun cellulose scaffolds from biomass. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:1399-1414. [DOI: 10.1080/09205063.2019.1636351] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | | | - Mirta Mir Caraballo
- Institute of Exact Sciences, ICEX - Federal University of Alfenas (Unifal-MG), Alfenas-MG, Brazil
| | - Alvaro Antonio Alencar de Queiroz
- High Voltage Laboratory Prof. Manuel Luís Barreira Martinez (LAT-EFEI)/Institute of Electrical Systems and Energy (ISEE), Federal University of Itajubá-UNIFEI, Itajubá-MG, Brazil
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15
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Zheng B, Harris C, Bhatia SR, Thomas MF. Dissolution capacity and rheology of cellulose in ionic liquids composed of imidazolium cation and phosphate anions. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4607] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bingqian Zheng
- Department of ChemistryStony Brook University Stony Brook NY
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16
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Chu Y, He X. MoDoop: An Automated Computational Approach for COSMO-RS Prediction of Biopolymer Solubilities in Ionic Liquids. ACS OMEGA 2019; 4:2337-2343. [PMID: 31459475 PMCID: PMC6648271 DOI: 10.1021/acsomega.8b03255] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 01/22/2019] [Indexed: 06/10/2023]
Abstract
An automated computational framework (MoDoop) was developed to predict the biopolymer solubilities in ionic liquids (ILs) on the basis of conductor-like screening model for real solvents calculations of two thermodynamic properties: logarithmic activity coefficient (ln γ) at infinite dilution and excess enthalpy (H E) of mixture. The calculation was based on the optimized two-dimensional structures of biopolymer models and ILs by searching the lowest-energy conformer and optimizing molecular geometry. Three lignin models together with one IL dataset were used to evaluate the prediction ability of the developed method. The evaluation results show that ln γ is a more reliable property to predict lignin solubilities in ILs and the p-coumaryl alcohol model is considered as the best model to represent lignin molecules. The developed MoDoop approach is efficient for rapid in silico screening of suitable ionic liquids to dissolve biopolymers.
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17
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Li Y, Wang J, Liu X, Zhang S. Towards a molecular understanding of cellulose dissolution in ionic liquids: anion/cation effect, synergistic mechanism and physicochemical aspects. Chem Sci 2018; 9:4027-4043. [PMID: 29780532 PMCID: PMC5941279 DOI: 10.1039/c7sc05392d] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 03/25/2018] [Indexed: 12/23/2022] Open
Abstract
This perspective summarizes mechanistic studies on cellulose dissolution in ionic liquids, highlighting the synergistic mechanism, physicochemical aspects and future research trends.
Cellulose is one of the most abundant bio-renewable materials on the earth and its conversion to biofuels provides an appealing way to satisfy the increasing global energy demand. However, before carrying out the process of enzymolysis to glucose or polysaccharides, cellulose needs to be pretreated to overcome its recalcitrance. In recent years, a variety of ionic liquids (ILs) have been found to be effective solvents for cellulose, providing a new, feasible pretreatment strategy. A lot of experimental and computational studies have been carried out to investigate the dissolution mechanism. However, many details are not fully understood, which highlights the necessity to overview the current knowledge of cellulose dissolution and identify the research trend in the future. This perspective summarizes the mechanistic studies and microscopic insights of cellulose dissolution in ILs. Recent investigations of the synergistic effect of cations/anions and the distinctive structural changes of cellulose microfibril in ILs are also reviewed. Besides, understanding the factors controlling the dissolution process, such as the structure of anions/cations, viscosity of ILs, pretreatment temperature, heating rate, etc., has been discussed from a structural and physicochemical viewpoint. At the end, the existing problems are discussed and future prospects are given. We hope this article would be helpful for deeper understanding of the cellulose dissolution process in ILs and the rational design of more efficient and recyclable ILs.
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Affiliation(s)
- Yao Li
- Beijing Key Laboratory of Ionic Liquids Clean Process , CAS Key Laboratory of Green Process and Engineering , Institute of Process Engineering , Chinese Academy of Sciences , Beijing , 100190 , P. R. China . ;
| | - Jianji Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals , School of Chemistry and Chemical Engineering , Key Laboratory of Green Chemical Media and Reactions , Henan Normal University , Xinxiang , Henan 453007 , P. R. China
| | - Xiaomin Liu
- Beijing Key Laboratory of Ionic Liquids Clean Process , CAS Key Laboratory of Green Process and Engineering , Institute of Process Engineering , Chinese Academy of Sciences , Beijing , 100190 , P. R. China . ;
| | - Suojiang Zhang
- Beijing Key Laboratory of Ionic Liquids Clean Process , CAS Key Laboratory of Green Process and Engineering , Institute of Process Engineering , Chinese Academy of Sciences , Beijing , 100190 , P. R. China . ;
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19
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Self-assembled cellulose materials for biomedicine: A review. Carbohydr Polym 2018; 181:264-274. [DOI: 10.1016/j.carbpol.2017.10.067] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 09/26/2017] [Accepted: 10/20/2017] [Indexed: 12/21/2022]
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20
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Nanta P, Skolpap W, Kasemwong K, Shimoyama Y. Dissolution and modification of cellulose using high-pressure carbon dioxide switchable solution. J Supercrit Fluids 2017. [DOI: 10.1016/j.supflu.2017.07.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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Tolk J, Reiche A. Vernetzung cellulosischer Materialien: Herstellungsstrategien und analytische Ansätze. CHEM-ING-TECH 2017. [DOI: 10.1002/cite.201600186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jakob Tolk
- Sartorius Stedim Biotech GmbH; August-Spindler-Straße 11 37079 Göttingen Deutschland
| | - Annette Reiche
- Sartorius Stedim Biotech GmbH; August-Spindler-Straße 11 37079 Göttingen Deutschland
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22
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Jiang X, Kitamura S, Sato T, Terao K. Chain Dimensions and Stiffness of Cellulosic and Amylosic Chains in an Ionic Liquid: Cellulose, Amylose, and an Amylose Carbamate in BmimCl. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00389] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- XinYue Jiang
- Department
of Macromolecular Science, Graduate School of Science, Osaka University, 1-1
Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Shinichi Kitamura
- Graduate
School of Life and Environmental Sciences, Osaka Prefecture University, Gakuen-cho,
Nakaku, Sakai 599-8531, Japan
| | - Takahiro Sato
- Department
of Macromolecular Science, Graduate School of Science, Osaka University, 1-1
Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Ken Terao
- Department
of Macromolecular Science, Graduate School of Science, Osaka University, 1-1
Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
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23
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Jiang X, Ryoki A, Terao K. Dimensional and hydrodynamic properties of cellulose tris(alkylcarbamate)s in solution: Side chain dependent conformation in tetrahydrofuran. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.02.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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24
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Lindman B, Medronho B, Alves L, Costa C, Edlund H, Norgren M. The relevance of structural features of cellulose and its interactions to dissolution, regeneration, gelation and plasticization phenomena. Phys Chem Chem Phys 2017. [DOI: 10.1039/c7cp02409f] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The interactions and structural properties of cellulose influence different phenomena.
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Affiliation(s)
- Björn Lindman
- FSCN
- Mid Sweden University
- SE-851 70 Sundsvall
- Sweden
- Physical Chemistry
| | - Bruno Medronho
- Faculty of Sciences and Technology (MeditBio)
- Ed. 8
- University of Algarve
- 8005-139 Faro
- Portugal
| | - Luis Alves
- CQC
- University of Coimbra
- Department of Chemistry
- 3004-535 Coimbra
- Portugal
| | | | - Håkan Edlund
- FSCN
- Mid Sweden University
- SE-851 70 Sundsvall
- Sweden
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25
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Siankevich S, Fei Z, Scopelliti R, Jessop PG, Zhang J, Yan N, Dyson PJ. Direct Conversion of Mono- and Polysaccharides into 5-Hydroxymethylfurfural Using Ionic-Liquid Mixtures. CHEMSUSCHEM 2016; 9:2089-2096. [PMID: 27345462 DOI: 10.1002/cssc.201600313] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 04/14/2016] [Indexed: 06/06/2023]
Abstract
Platform chemicals are usually derived from petrochemical feedstocks. A sustainable alternative commences with lignocellulosic biomass, a renewable feedstock, but one that is highly challenging to process. Ionic liquids (ILs) are able to solubilize biomass and, in the presence of catalysts, convert the biomass into useful platform chemicals. Herein, we demonstrate that mixtures of ILs are powerful systems for the selective catalytic transformation of cellulose into 5-hydroxymethylfurfural (HMF). Combining ILs with continuous HMF extraction into methyl-isobutyl ketone or 1,2-dimethoxyethane, which form a biphase with the IL mixture, allows the online separation of HMF in high yield. This one-step process is operated under relatively mild conditions and represents a significant step forward towards sustainable HMF production.
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Affiliation(s)
- Sviatlana Siankevich
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
| | - Zhaofu Fei
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
| | - Philip G Jessop
- Department of Chemistry, Queen's University, Kingston, Ontario, K7 L 3N6, Canada
| | - Jiaguang Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
| | - Ning Yan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore.
| | - Paul J Dyson
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015, Lausanne, Switzerland.
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26
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27
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Cai X, Li C, Zhang Y, Liu Q, Liu W. Simultaneously reinforcing and toughening plasticized starch film via regenerated cellulose as reinforcing phase. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-015-0907-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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28
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Alves L, Medronho BF, Antunes FE, Romano A, Miguel MG, Lindman B. On the role of hydrophobic interactions in cellulose dissolution and regeneration: Colloidal aggregates and molecular solutions. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.03.011] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Sharma V, Haward SJ, Serdy J, Keshavarz B, Soderlund A, Threlfall-Holmes P, McKinley GH. The rheology of aqueous solutions of ethyl hydroxy-ethyl cellulose (EHEC) and its hydrophobically modified analogue (hmEHEC): extensional flow response in capillary break-up, jetting (ROJER) and in a cross-slot extensional rheometer. SOFT MATTER 2015; 11:3251-70. [PMID: 25782987 DOI: 10.1039/c4sm01661k] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Cellulose derivatives containing associating hydrophobic groups along their hydrophilic backbone are used as rheology modifiers in the formulation of water-based spray paints, medicinal sprays, cosmetics and printable inks. Jetting and spraying applications of these materials involve progressive thinning and break-up of a fluid column or sheet into drops. Strong extensional kinematics develop in the thinning fluid neck. In viscous Newtonian fluids, inertial and viscous stresses oppose the surface tension-driven instability. In aqueous solutions of polymers such as Ethyl Hydroxy-Ethyl Cellulose (EHEC), chain elongation provides additional elastic stresses that can delay the capillary-driven pinch-off, influencing the sprayability or jettability of the complex fluid. In this study, we quantify the transient response of thinning filaments of cellulose ether solutions to extensional flows in a Capillary Break-up Extensional Rheometer (CaBER) and in a forced jet undergoing break-up using Rayleigh Ohnesorge Jetting Extensional Rheometry (ROJER). We also characterize the steady state molecular deformations using measurements of the flow-induced birefringence and excess pressure drop in an extensional stagnation point flow using a Cross-Slot Extensional Rheometer (CSER). We show that under the high extension rates encountered in jetting and spraying, the semi-dilute solutions of hydrophobically modified ethyl hydroxy-ethyl cellulose (hmEHEC) exhibit extensional thinning, while the unmodified bare chains of EHEC display an increase in extensional viscosity, up to a plateau value. For both EHEC and hmEHEC dispersions, the low extensibility of the cellulose derivatives limits the Trouton ratio observed at the highest extension rates attained (close to 10(5) s(-1)) to around 10-20. The reduction in extensional viscosity with increasing extension rate for the hydrophobically modified cellulose ether is primarily caused by the disruption of a transient elastic network that is initially formed by intermolecular association of hydrophobic stickers. This extensional thinning behavior, in conjunction with the low extensibility of the hydrophobically modified cellulose ether additives, makes these rheology modifiers ideal for controlling the extensional rheology in formulations that require jetting or spraying, with minimal residual stringiness or stranding.
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Affiliation(s)
- Vivek Sharma
- Department of Chemical Engineering, University of Illinois at Chicago, IL 60607, USA.
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30
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Yusup EM, Mahzan S, Jafferi N, Been CW. The Effectiveness of TBAF/DMSO in Dissolving Oil Palm Empty Fruit Bunch-Cellulose Phosphate. ACTA ACUST UNITED AC 2015. [DOI: 10.12720/jomb.4.2.165-169] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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31
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Yuan X, Cheng G. From cellulose fibrils to single chains: understanding cellulose dissolution in ionic liquids. Phys Chem Chem Phys 2015; 17:31592-607. [DOI: 10.1039/c5cp05744b] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Continued improvement on the structure of elementary fibrils, simulation of larger elementary fibrils and systematic work on the solution structure of cellulose in ILs are three interacting modules to unravel the mechanism of cellulose dissolution in ILs.
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Affiliation(s)
- Xueming Yuan
- College of Life Science and Technology
- Beijing University of Chemical Technology
- Beijing
- China
| | - Gang Cheng
- College of Life Science and Technology
- Beijing University of Chemical Technology
- Beijing
- China
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32
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True molecular solutions of natural cellulose in the binary ionic liquid-containing solvent mixtures. Carbohydr Polym 2014; 112:125-33. [DOI: 10.1016/j.carbpol.2014.05.059] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 04/23/2014] [Accepted: 05/22/2014] [Indexed: 11/23/2022]
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33
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Mostofian B, Cheng X, Smith JC. Replica-exchange molecular dynamics simulations of cellulose solvated in water and in the ionic liquid 1-butyl-3-methylimidazolium chloride. J Phys Chem B 2014; 118:11037-49. [PMID: 25180945 DOI: 10.1021/jp502889c] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Ionic liquids have become a popular solvent for cellulose pretreatment in biorefineries due to their efficiency in dissolution and their reusability. Understanding the interactions between cations, anions, and cellulose is key to the development of better solvents and the improvement of pretreatment conditions. While previous studies described the interactions between ionic liquids and cellulose fibers, shedding light on the initial stages of the cellulose dissolution process, we study the end state of that process by exploring the structure and dynamics of a single cellulose decamer solvated in 1-butyl-3-methyl-imidazolium chloride (BmimCl) and in water using replica-exchange molecular dynamics. In both solvents, global structural features of the cellulose chain are similar. However, analyses of local structural properties show that cellulose explores greater conformational variability in the ionic liquid than in water. For instance, in BmimCl the cellulose intramolecular hydrogen bond O3H'···O5 is disrupted more often resulting in greater flexibility of the solute. Our results indicate that the cellulose chain is more dynamic in BmimCl than in water, which may play a role in the favorable dissolution of cellulose in the ionic liquid. Calculation of the configurational entropy of the cellulose decamer confirms its higher conformational flexibility in BmimCl than in water at elevated temperatures.
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Affiliation(s)
- Barmak Mostofian
- UT/ORNL Center for Molecular Biophysics, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37830, United States
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34
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Agarwal S, Hossain AM, Choi YS, Cheong M, Jang HG, Lee JS. Imidazolium Chloride-LiCl Melts as Efficient Solvents for Cellulose. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.12.3771] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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35
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Zhong C, Wang C, Huang F, Jia H, Wei P. Wheat straw cellulose dissolution and isolation by tetra-n-butylammonium hydroxide. Carbohydr Polym 2013; 94:38-45. [DOI: 10.1016/j.carbpol.2013.01.043] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2012] [Revised: 12/12/2012] [Accepted: 01/17/2013] [Indexed: 10/27/2022]
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36
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Gericke M, Trygg J, Fardim P. Functional Cellulose Beads: Preparation, Characterization, and Applications. Chem Rev 2013; 113:4812-36. [DOI: 10.1021/cr300242j] [Citation(s) in RCA: 177] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Martin Gericke
- Laboratory of Fibre and Cellulose Technology, Åbo Akademi, Porthansgatan 3, FI-20500 Turku,
Finland, Members of the European Polysaccharide Network of Excellence
(EPNOE)
| | - Jani Trygg
- Laboratory of Fibre and Cellulose Technology, Åbo Akademi, Porthansgatan 3, FI-20500 Turku,
Finland, Members of the European Polysaccharide Network of Excellence
(EPNOE)
| | - Pedro Fardim
- Laboratory of Fibre and Cellulose Technology, Åbo Akademi, Porthansgatan 3, FI-20500 Turku,
Finland, Members of the European Polysaccharide Network of Excellence
(EPNOE)
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37
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Copper inclusion in cellulose using sodium d-gluconate complexes. Carbohydr Polym 2012; 90:1345-52. [DOI: 10.1016/j.carbpol.2012.07.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Revised: 06/23/2012] [Accepted: 07/02/2012] [Indexed: 10/28/2022]
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38
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Ohira K, Yoshida K, Hayase S, Itoh T. Amino Acid Ionic Liquid as an Efficient Cosolvent of Dimethyl Sulfoxide to Realize Cellulose Dissolution at Room Temperature. CHEM LETT 2012. [DOI: 10.1246/cl.2012.987] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Kazutaka Ohira
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University
| | - Kohei Yoshida
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University
| | - Shuichi Hayase
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University
| | - Toshiyuki Itoh
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University
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39
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40
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Olsson C, Westman G. Wet spinning of cellulose from ionic liquid solutions-viscometry and mechanical performance. J Appl Polym Sci 2012. [DOI: 10.1002/app.38064] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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41
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Xiong R, Hameed N, Guo Q. Cellulose/polycaprolactone blends regenerated from ionic liquid 1-butyl-3-methylimidazolium chloride. Carbohydr Polym 2012; 90:575-82. [PMID: 24751079 DOI: 10.1016/j.carbpol.2012.05.080] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 05/20/2012] [Accepted: 05/22/2012] [Indexed: 11/18/2022]
Abstract
Ionic liquid solvent, 1-butyl-3-methylimidazolium chloride (BMIM[Cl]) was used to prepare cellulose/polycaprolactone (PCL) blend films. This solvent was recycled with high yield and purity after blend precipitation. The inter- and intra-molecular hydrogen bonding interactions in these blends were investigated by Fourier transform infrared (FTIR) spectroscopy and it was found that a new peak in the carbonyl region, assigned to hydrogen bonding between carbonyl groups of PCL and hydroxyl groups of cellulose in blends with PCL composition less than 40 wt%. Differential scanning calorimetry (DSC) results implied a partial miscibility of the two components by melting point depression. Moreover, the tensile properties of the blends can be adjusted by incorporating various amounts of PCL into cellulose. The blends show significant enhancement of thermal stability compared to the regenerated cellulose when the content of PCL is higher than 40 wt%. This work demonstrates an effective approach for the processing biodegradable blends from natural and synthetic polymers.
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Affiliation(s)
- Renyan Xiong
- Polymers Research Group, Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia
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42
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Haward SJ, Sharma V, Butts CP, McKinley GH, Rahatekar SS. Shear and extensional rheology of cellulose/ionic liquid solutions. Biomacromolecules 2012; 13:1688-99. [PMID: 22480203 DOI: 10.1021/bm300407q] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this study, we characterize the shear and extensional rheology of dilute to semidilute solutions of cellulose in the ionic liquid 1-ethyl-3-methylimidazolium acetate (EMIAc). In steady shear flow, the semidilute solutions exhibit shear thinning, and the high-frequency complex modulus measured in small amplitude oscillatory shear flow exhibits the characteristic scaling expected for solutions of semiflexible chains. Flow curves of the steady shear viscosity plotted against shear rate closely follow the frequency dependence of the complex viscosity acquired using oscillatory shear, thus satisfying the empirical Cox-Merz rule. We use capillary thinning rheometry (CaBER) to characterize the relaxation times and apparent extensional viscosities of the semidilute cellulose solutions in a uniaxial extensional flow that mimics the dynamics encountered in the spin-line during fiber spinning processes. The apparent extensional viscosity and characteristic relaxation times of the semidilute cellulose/EMIAc solutions increase dramatically as the solutions enter the entangled concentration regime at which fiber spinning becomes viable.
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Affiliation(s)
- Simon J Haward
- Hatsopoulos Microfluids Laboratory, Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
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43
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Preparation and characterization of regenerated cellulose blend films containing high amount of poly(vinyl alcohol) (PVA) in ionic liquid. Macromol Res 2012. [DOI: 10.1007/s13233-012-0106-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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44
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Zhou C, Chen N, Yang J, Liu H, Li Y. Ion-Specific Self-Assembly of Low-Dimension Aggregate Structures of Conjugated Polymer at Two-Phase Interface. Macromol Rapid Commun 2012; 33:688-92. [DOI: 10.1002/marc.201100828] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2011] [Revised: 12/27/2011] [Indexed: 11/06/2022]
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45
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46
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Lu F, Cheng B, Song J, Liang Y. Rheological characterization of concentrated cellulose solutions in 1-allyl-3-methylimidazolium chloride. J Appl Polym Sci 2011. [DOI: 10.1002/app.35363] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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47
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GUO JINXIN, ZHANG DONGJU, LIU CHENGBU. A THEORETICAL INVESTIGATION OF THE INTERACTIONS BETWEEN CELLULOSE AND 1-BUTYL-3-METHYLIMIDAZOLIUM CHLORIDE. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2011. [DOI: 10.1142/s0219633610005906] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
To better understand the interactions between cellulose and imidazolium-based ionic liquids (ILs), quantum chemistry calculations have been performed on the systems composed of one cellulose unit with the anion, cation, and the ion pair of 1-butyl-3-methylimidazolium chloride ( [bmim]Cl ) by the density functional method. The relevant geometries, energies, electronic properties and IR characteristics have been systematically discussed. It is found that H-bond interaction is essential for the systems under consideration. The hydroxyls in cellulose bind to chloride anions strongly through H -bonds, which could be predominant to cellulose dissolution in ILs. Chloride anion prefers to occur between two adjacent hydroxyls in cellulose to form bridging OH⋯Cl⋯HO hydrogen bonds. In contrast, weak hydrogen bonds exist between the hydrogen atoms on the imidazolium cation and hydroxyl oxygen atoms of cellulose, which are too much weaker than the hydrogen bonds between the cellulose hydroxyls and chloride anions to be detected by the experiments. The phenomena of cellulose dissolution in ILs should be a result of the joint interactions of chloride anions and [bmim]+ cations with hydroxyls in cellulose.
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Affiliation(s)
- JINXIN GUO
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, P. R. China
| | - DONGJU ZHANG
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, P. R. China
| | - CHENGBU LIU
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, P. R. China
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48
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Shariki S, Dale SEC, Marken F. Electroanalysis at Salt - Cotton - Electrode Interfaces: Preconcentration Effects Lead to Nano-Molar Hg2+ Sensitivity. ELECTROANAL 2011. [DOI: 10.1002/elan.201100292] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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49
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Phottraithip W, Lin DQ, Shi F, Yao SJ. A novel method for the preparation of spherical cellulose-tungsten carbide composite matrix with NMMO as nonderivatizing solvent. J Appl Polym Sci 2011. [DOI: 10.1002/app.33920] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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50
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Chen Y, Zhang Y, Ke F, Zhou J, Wang H, Liang D. Solubility of neutral and charged polymers in ionic liquids studied by laser light scattering. POLYMER 2011. [DOI: 10.1016/j.polymer.2010.11.034] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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