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Liu X, Tian Y, Wang L, Chen L, Jin Z, Zhang Q. A Cost-Effective and Chemical-Recycling Approach for Facile Preparation of Regenerated Cellulose Materials. NANO LETTERS 2024. [PMID: 38991210 DOI: 10.1021/acs.nanolett.4c02351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
Cellulose is difficult to melt or dissolve. The dissolution and regeneration process paves the way to convert cellulose into diverse forms but still suffers from high costs and environmental pollution. Here, we developed a method that uses aqueous alkali to efficiently dissolve cellulose at a temperature above 0 °C in minutes for fabricating regenerated cellulose. Cellulose was modified with minimal carboxymethyl groups to weaken the intermolecular interaction and improve its dissolution. The modified cellulose can be commercially obtained from carboxymethyl cellulose manufacturing with low cost and high quality. The use of only aqueous alkali reduces pollution and facilitates chemical recycling, and the moderate dissolving temperature reduces energy consumption. The regenerated cellulose materials display excellent mechanical properties and can be recycled or biodegraded after use. The method allows the use of diverse raw materials and modifications to broaden its applicability. The study develops a low-cost and eco-friendly method to fabricate regenerated cellulose.
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Affiliation(s)
- Xiaodi Liu
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P.R. China
| | - Yichen Tian
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P.R. China
| | - Li Wang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P.R. China
| | - Lei Chen
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P.R. China
| | - Zhiping Jin
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P.R. China
| | - Qiang Zhang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P.R. China
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2
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Haleem A, Pan JM, Shah A, Hussain H, He WD. A systematic review on new advancement and assessment of emerging polymeric cryogels for environmental sustainability and energy production. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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3
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Ding Y, Pang Z, Lan K, Yao Y, Panzarasa G, Xu L, Lo Ricco M, Rammer DR, Zhu JY, Hu M, Pan X, Li T, Burgert I, Hu L. Emerging Engineered Wood for Building Applications. Chem Rev 2023; 123:1843-1888. [PMID: 36260771 DOI: 10.1021/acs.chemrev.2c00450] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The building sector, including building operations and materials, was responsible for the emission of ∼11.9 gigatons of global energy-related CO2 in 2020, accounting for 37% of the total CO2 emissions, the largest share among different sectors. Lowering the carbon footprint of buildings requires the development of carbon-storage materials as well as novel designs that could enable multifunctional components to achieve widespread applications. Wood is one of the most abundant biomaterials on Earth and has been used for construction historically. Recent research breakthroughs on advanced engineered wood products epitomize this material's tremendous yet largely untapped potential for addressing global sustainability challenges. In this review, we explore recent developments in chemically modified wood that will produce a new generation of engineered wood products for building applications. Traditionally, engineered wood products have primarily had a structural purpose, but this review broadens the classification to encompass more aspects of building performance. We begin by providing multiscale design principles of wood products from a computational point of view, followed by discussion of the chemical modifications and structural engineering methods used to modify wood in terms of its mechanical, thermal, optical, and energy-related performance. Additionally, we explore life cycle assessment and techno-economic analysis tools for guiding future research toward environmentally friendly and economically feasible directions for engineered wood products. Finally, this review highlights the current challenges and perspectives on future directions in this research field. By leveraging these new wood-based technologies and analysis tools for the fabrication of carbon-storage materials, it is possible to design sustainable and carbon-negative buildings, which could have a significant impact on mitigating climate change.
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Affiliation(s)
- Yu Ding
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland20742, United States
| | - Zhenqian Pang
- Department of Mechanical Engineering, University of Maryland, College Park, Maryland20742, United States
| | - Kai Lan
- Center for Industrial Ecology, Yale School of the Environment, Yale University, New Haven, Connecticut06511, United States
| | - Yuan Yao
- Center for Industrial Ecology, Yale School of the Environment, Yale University, New Haven, Connecticut06511, United States
| | - Guido Panzarasa
- Wood Materials Science, Institute for Building Materials, ETH Zürich, 8093Zürich, Switzerland.,WoodTec Group, Cellulose & Wood Materials, Empa, 8600Dübendorf, Switzerland
| | - Lin Xu
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland20742, United States
| | - Marco Lo Ricco
- US Department of Agriculture (USDA) Forest Products Laboratory, Madison, Wisconsin53726, United States
| | - Douglas R Rammer
- US Department of Agriculture (USDA) Forest Products Laboratory, Madison, Wisconsin53726, United States
| | - J Y Zhu
- US Department of Agriculture (USDA) Forest Products Laboratory, Madison, Wisconsin53726, United States
| | - Ming Hu
- School of Architecture, Planning and Preservation, University of Maryland, College Park, Maryland20742, United States
| | - Xuejun Pan
- Department of Biological Systems Engineering, University of Wisconsin─Madison, Madison, Wisconsin53706, United States
| | - Teng Li
- Department of Mechanical Engineering, University of Maryland, College Park, Maryland20742, United States
| | - Ingo Burgert
- Wood Materials Science, Institute for Building Materials, ETH Zürich, 8093Zürich, Switzerland.,WoodTec Group, Cellulose & Wood Materials, Empa, 8600Dübendorf, Switzerland
| | - Liangbing Hu
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland20742, United States.,Center for Materials Innovation, University of Maryland, College Park, Maryland20742, United States
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4
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Zhong C, Zajki-Zechmeister K, Nidetzky B. Effect of ionic liquid on the enzymatic synthesis of cello-oligosaccharides and their assembly into cellulose materials. Carbohydr Polym 2022; 301:120302. [DOI: 10.1016/j.carbpol.2022.120302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/21/2022] [Accepted: 10/31/2022] [Indexed: 11/05/2022]
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5
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Wang R, He H, Sharma PR, Tian J, Söderberg LD, Rosén T, Hsiao BS. Unexpected Gelation Behavior of Cellulose Nanofibers Dispersed in Glycols. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ruifu Wang
- Department of Chemistry, Stony Brook University, Stony Brook, New York11794-3400, United States
| | - Hongrui He
- Department of Chemistry, Stony Brook University, Stony Brook, New York11794-3400, United States
| | - Priyanka R. Sharma
- Department of Chemistry, Stony Brook University, Stony Brook, New York11794-3400, United States
| | - Jiajun Tian
- Department of Chemistry, Stony Brook University, Stony Brook, New York11794-3400, United States
| | - L. Daniel Söderberg
- Fiber and Polymer Technology Department, KTH Royal Institute of Technology, StockholmS-100 44, Sweden
- Wallenberg Wood Science Center, KTH Royal Institute of Technology, StockholmS-100 44, Sweden
| | - Tomas Rosén
- Fiber and Polymer Technology Department, KTH Royal Institute of Technology, StockholmS-100 44, Sweden
- Wallenberg Wood Science Center, KTH Royal Institute of Technology, StockholmS-100 44, Sweden
| | - Benjamin S. Hsiao
- Department of Chemistry, Stony Brook University, Stony Brook, New York11794-3400, United States
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6
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Kozlowski AM, Hasani M. Cellulose interactions with CO2 in NaOH(aq): The (un)expected coagulation creates potential in cellulose technology. Carbohydr Polym 2022; 294:119771. [DOI: 10.1016/j.carbpol.2022.119771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/18/2022] [Accepted: 06/20/2022] [Indexed: 11/02/2022]
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7
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Yuan R, Wu K, Fu Q. 3D printing of all-regenerated cellulose material with truly 3D configuration: The critical role of cellulose microfiber. Carbohydr Polym 2022; 294:119784. [DOI: 10.1016/j.carbpol.2022.119784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/21/2022] [Accepted: 06/22/2022] [Indexed: 11/17/2022]
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8
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Cellulose Cryogels as Promising Materials for Biomedical Applications. Int J Mol Sci 2022; 23:ijms23042037. [PMID: 35216150 PMCID: PMC8880007 DOI: 10.3390/ijms23042037] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/04/2022] [Accepted: 02/11/2022] [Indexed: 02/01/2023] Open
Abstract
The availability, biocompatibility, non-toxicity, and ease of chemical modification make cellulose a promising natural polymer for the production of biomedical materials. Cryogelation is a relatively new and straightforward technique for producing porous light and super-macroporous cellulose materials. The production stages include dissolution of cellulose in an appropriate solvent, regeneration (coagulation) from the solution, removal of the excessive solvent, and then freezing. Subsequent freeze-drying preserves the micro- and nanostructures of the material formed during the regeneration and freezing steps. Various factors can affect the structure and properties of cellulose cryogels, including the cellulose origin, the dissolution parameters, the solvent type, and the temperature and rate of freezing, as well as the inclusion of different fillers. Adjustment of these parameters can change the morphology and properties of cellulose cryogels to impart the desired characteristics. This review discusses the structure of cellulose and its properties as a biomaterial, the strategies for cellulose dissolution, and the factors affecting the structure and properties of the formed cryogels. We focus on the advantages of the freeze-drying process, highlighting recent studies on the production and application of cellulose cryogels in biomedicine and the main cryogel quality characteristics. Finally, conclusions and prospects are presented regarding the application of cellulose cryogels in wound healing, in the regeneration of various tissues (e.g., damaged cartilage, bone tissue, and nerves), and in controlled-release drug delivery.
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9
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Chen Y, Fu X, Yu S, Quan K, Zhao C, Shao Z, Ye D, Qi H, Chen P. Parameterization of classical nonpolarizable force field for hydroxide toward the large‐scale molecular dynamics simulation of cellulose in pre‐cooled alkali/urea aqueous solution. J Appl Polym Sci 2021. [DOI: 10.1002/app.51477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yu Chen
- Beijing Engineering Research Centre of Cellulose and Its Derivatives School of Materials Science and Engineering, Beijing Institute of Technology Beijing China
| | - Xiaotong Fu
- Key Laboratory of Eco‐Textiles, Ministry of Education Jiangnan University Wuxi Jiangsu Province China
| | - Shuxian Yu
- Beijing Engineering Research Centre of Cellulose and Its Derivatives School of Materials Science and Engineering, Beijing Institute of Technology Beijing China
| | - Kun Quan
- China Institute of Marine Technology and Economy Beijing China
| | - Changjun Zhao
- Beijing Engineering Research Centre of Cellulose and Its Derivatives School of Materials Science and Engineering, Beijing Institute of Technology Beijing China
| | - Ziqiang Shao
- Beijing Engineering Research Centre of Cellulose and Its Derivatives School of Materials Science and Engineering, Beijing Institute of Technology Beijing China
| | - Dongdong Ye
- School of Textile Materials and Engineering Wuyi University Jiangmen Guangdong Province China
| | - Haisong Qi
- State Key Laboratory of Pulp and Paper Engineering South China University of Technology Guangzhou Guangdong Province China
| | - Pan Chen
- Beijing Engineering Research Centre of Cellulose and Its Derivatives School of Materials Science and Engineering, Beijing Institute of Technology Beijing China
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10
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Caputo D, Fusco C, Nacci A, Palazzo G, Murgia S, D'Accolti L, Gentile L. A selective cellulose/hemicellulose green solvents extraction from buckwheat chaff. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2021. [DOI: 10.1016/j.carpta.2021.100094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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11
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Lignin enhances cellulose dissolution in cold alkali. Carbohydr Polym 2021; 274:118661. [PMID: 34702480 DOI: 10.1016/j.carbpol.2021.118661] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 09/06/2021] [Accepted: 09/07/2021] [Indexed: 11/20/2022]
Abstract
Aqueous sodium hydroxide solutions are extensively used as solvents for lignin in kraft pulping. These are also appealing systems for cellulose dissolution due to their inexpensiveness, ease to recycle and low toxicity. Cellulose dissolution occurs in a narrow concentration region and at low temperatures. Dissolution is often incomplete but additives, such as zinc oxide or urea, have been found to significantly improve cellulose dissolution. In this work, lignin was explored as a possible beneficial additive for cellulose dissolution. Lignin was found to improve cellulose dissolution in cold alkali, extending the NaOH concentration range to lower values. The regenerated cellulose material from the NaOH-lignin solvents was found to have a lower crystallinity and crystallite size than the samples prepared in the neat NaOH and NaOH-urea solvents. Beneficial lignin-cellulose interactions in solution state appear to be preserved under coagulation and regeneration, reducing the tendency of crystallization of cellulose.
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12
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Gorbacheva SN, Yadykova AY, Ilyin SO. Rheological and tribological properties of low-temperature greases based on cellulose acetate butyrate gel. Carbohydr Polym 2021; 272:118509. [PMID: 34420754 DOI: 10.1016/j.carbpol.2021.118509] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/10/2021] [Accepted: 07/27/2021] [Indexed: 02/06/2023]
Abstract
A new approach to produce biodegradable low-temperature greases, based on cellulose acetate butyrate (CAB) that dissolves in the medium of acetyl tributyl citrate (ATBC) at high temperatures and produces a gel during cooling because of phase separation, is proposed. Rheological properties of CAB solutions and gels in a wide temperature range from -80 °C to 160 °C were investigated with characterization of their viscoelasticity and viscoplasticity that arise because of the sol-gel transition of CAB/ATBC systems at 55 °C. CAB gelation reduces the wear coefficient tenfold when using ATBC as a lubricant but leads to a noticeable increase in the friction coefficient. To improve tribological properties of gel greases, additives of various solid particles were used: hexagonal boron nitride, graphite, and polytetrafluoroethylene (PTFE). The introduction of 10% to 30% additives in a gel grease containing 10% CAB has shown the preference of PTFE at a concentration of 10% for improving grease tribological characteristics.
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Affiliation(s)
- Svetlana N Gorbacheva
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospect, 119991 Moscow, Russia
| | - Anastasiya Y Yadykova
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospect, 119991 Moscow, Russia
| | - Sergey O Ilyin
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospect, 119991 Moscow, Russia.
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13
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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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14
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Jung S, Lee S, Dou X, Kwon EE. Valorization of disposable COVID-19 mask through the thermo-chemical process. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2021; 405:126658. [PMID: 32834763 DOI: 10.1016/j.cej.2020.126668] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/09/2020] [Accepted: 08/11/2020] [Indexed: 05/24/2023]
Abstract
It becomes common to wear a disposable face mask to protect from coronavirus disease 19 (COVID-19) amid this pandemic. However, massive generations of contaminated face mask cause environmental concerns because current disposal processes (i.e., incineration and reclamation) for them release toxic chemicals. The disposable mask is made of different compounds, making it hard to be recycled. In this regard, this work suggests an environmentally benign disposal process, simultaneously achieving the production of valuable fuels from the face mask. To this end, CO2-assisted thermo-chemical process was conducted. The first part of this work determined the major chemical constituents of a disposable mask: polypropylene, polyethylene, nylon, and Fe. In the second part, pyrolysis study was employed to produce syngas and C1-2 hydrocarbons (HCs) from the disposable mask. To enhance syngas and C1-2 HCs formations, multi-stage pyrolysis was used for more C-C and C-H bonds scissions of the disposable mask. Catalytic pyrolysis over Ni/SiO2 further expedited H2 and CH4 formations due to its capability for dehydrogenation. In the presence of CO2, catalytic pyrolysis additionally produced CO, while pyrolysis in N2 did not produce it. Therefore, the thermo-chemical conversion of disposable face mask and CO2 could be an environmentally benign way to remove COVID-19 plastic waste, generating value-added products.
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Affiliation(s)
- Sungyup Jung
- Department of Environment and Energy, Sejong University, Seoul 05006, Republic of Korea
| | - Sangyoon Lee
- Department of Environment and Energy, Sejong University, Seoul 05006, Republic of Korea
| | - Xiaomin Dou
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Eilhann E Kwon
- Department of Environment and Energy, Sejong University, Seoul 05006, Republic of Korea
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15
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Shi W, Ching YC, Chuah CH. Preparation of aerogel beads and microspheres based on chitosan and cellulose for drug delivery: A review. Int J Biol Macromol 2021; 170:751-767. [PMID: 33412201 DOI: 10.1016/j.ijbiomac.2020.12.214] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 12/24/2020] [Accepted: 12/29/2020] [Indexed: 12/11/2022]
Abstract
Spherical aerogels are not easily broken during use and are easier to transport and store which can be used as templates for drug delivery. This review summarizes the possible approaches for the preparation of aerogel beads and microspheres based on chitosan and cellulose, an overview to the methods of manufacturing droplets is presented, afterwards, the transition mechanisms from sol to a spherical gel are reviewed in detail followed by different drying processes to obtain spherical aerogels with porous structures. Additionally, a specific focus is given to aerogel beads and microspheres to be regarded as drug delivery carriers. Furthermore, a core/shell architecture of aerogel beads and microspheres for controlled drug release is described and subjected to inspire readers to create novel drug release system. Finally, the conclusions and outlooks of aerogel beads and microspheres for drug delivery are summarized.
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Affiliation(s)
- Wei Shi
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Yern Chee Ching
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Cheng Hock Chuah
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
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16
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Herburger K, Franková L, Sanhueza D, Roig-Sanchez S, Meulewaeter F, Hudson A, Thomson A, Laromaine A, Budtova T, Fry SC. Enzymically attaching oligosaccharide-linked 'cargoes' to cellulose and other commercial polysaccharides via stable covalent bonds. Int J Biol Macromol 2020; 164:4359-4369. [PMID: 32918959 DOI: 10.1016/j.ijbiomac.2020.09.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/25/2020] [Accepted: 09/03/2020] [Indexed: 10/23/2022]
Abstract
The Equisetum enzyme hetero-trans-β-glucanase (HTG) covalently grafts native plant cellulose (donor-substrate) to xyloglucan (acceptor-substrate), potentially offering a novel 'green' method of cellulose functionalisation. However, the range of cellulosic and non-cellulosic donor substrates that can be utilised by HTG is unknown, limiting our insight into its biotechnological potential. Here we show that HTG binds all celluloses tested (papers, tissues, hydrogels, bacterial cellulose) to radioactively- or fluorescently-labelled xyloglucan-heptasaccharide (XXXGol; acceptor-substrate). Glycol-chitin, glycol-chitosan and chitosan also acted as donor substrates but less effectively than cellulose. Cellulose-XXXGol conjugates were formed throughout the volume of a block of hydrogel, demonstrating penetration. Plant-derived celluloses (cellulose Iβ) became more effective donor-substrates after 'mercerisation' in ≥3 M NaOH; the opposite was true for bacterial cellulose Iα. Cellulose-XXXGol bonds resisted boiling 6 M NaOH, demonstrating strong glycosidic bonding. In conclusion, HTG stably grafts native and processed celluloses to xyloglucan-oligosaccharides, which may carry valuable 'cargoes', exemplified by sulphorhodamine. We thus demonstrate HTG's biotechnological potential to modify various cellulose-based substrates such as textiles, pulps, papers, packaging, sanitary products and hydrogels.
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Affiliation(s)
- Klaus Herburger
- The Edinburgh Cell Wall Group, Institute of Molecular Plant Sciences, School of Biological Sciences, The University of Edinburgh, Edinburgh EH9 3BF, United Kingdom.
| | - Lenka Franková
- The Edinburgh Cell Wall Group, Institute of Molecular Plant Sciences, School of Biological Sciences, The University of Edinburgh, Edinburgh EH9 3BF, United Kingdom
| | - Dayan Sanhueza
- The Edinburgh Cell Wall Group, Institute of Molecular Plant Sciences, School of Biological Sciences, The University of Edinburgh, Edinburgh EH9 3BF, United Kingdom
| | - Soledad Roig-Sanchez
- Institut de Ciència de Materials de Barcelona (ICMAB), Campus UAB, Bellaterra, Catalonia E-08193, Spain
| | - Frank Meulewaeter
- BASF, BBCC Innovation Center Gent - Trait Research, 9052 Gent (Zwijnaarde), Belgium
| | - Andrew Hudson
- The Edinburgh Cell Wall Group, Institute of Molecular Plant Sciences, School of Biological Sciences, The University of Edinburgh, Edinburgh EH9 3BF, United Kingdom
| | - Axel Thomson
- Edinburgh Innovations, The University of Edinburgh, Murchison House, King's Buildings, Edinburgh EH9 3BF, United Kingdom
| | - Anna Laromaine
- Institut de Ciència de Materials de Barcelona (ICMAB), Campus UAB, Bellaterra, Catalonia E-08193, Spain
| | - Tatiana Budtova
- MINES ParisTech, PSL Research University, CEMEF - Center for Materials Forming, UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France
| | - Stephen C Fry
- The Edinburgh Cell Wall Group, Institute of Molecular Plant Sciences, School of Biological Sciences, The University of Edinburgh, Edinburgh EH9 3BF, United Kingdom
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17
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Protz R, Lehmann A, Ganster J, Fink HP. Solubility and spinnability of cellulose-lignin blends in aqueous NMMO. Carbohydr Polym 2020; 251:117027. [PMID: 33142586 DOI: 10.1016/j.carbpol.2020.117027] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 08/25/2020] [Accepted: 08/28/2020] [Indexed: 10/23/2022]
Abstract
The direct dissolution and joint spinning of cellulose and lignin from NMMO-water were investigated by using dissolving pulp and purified KRAFT lignin. Compared to the rather narrow dissolution window of cellulose in the NMMO-water system, lignin with concentrations up to 15 wt.-% was shown to dissolve in a range from 30 % NMMO to 70 % NMMO at room temperature. The quasi-ternary phase diagram of cellulose-lignin-(NMMO-monohydrate) is represented by a cross section at 95 °C. Dry-jet wet spinning was realized for the cellulose-lignin compound up to 50 % lignin loading. The spinnability decreases with increasing lignin content. SEM and TEM investigations of the fibers exhibit a core-shell structure with a dense core and a porous shell with lower lignin content. In accordance with the X-ray fiber diagrams, it can be concluded that cellulose governs fiber formation and fiber properties while lignin acts mainly as a filler in the core region.
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Affiliation(s)
- R Protz
- Fraunhofer Institute for Applied Polymer Research, Geiselbergstr. 69, 14476, Potsdam, Germany.
| | - A Lehmann
- Fraunhofer Institute for Applied Polymer Research, Geiselbergstr. 69, 14476, Potsdam, Germany.
| | - J Ganster
- Fraunhofer Institute for Applied Polymer Research, Geiselbergstr. 69, 14476, Potsdam, Germany.
| | - H-P Fink
- Fraunhofer Institute for Applied Polymer Research, Geiselbergstr. 69, 14476, Potsdam, Germany.
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18
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Probing Interactions in Combined Hydroxide Base Solvents for Improving Dissolution of Cellulose. Polymers (Basel) 2020; 12:polym12061310. [PMID: 32521817 PMCID: PMC7362248 DOI: 10.3390/polym12061310] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 05/29/2020] [Accepted: 06/04/2020] [Indexed: 11/26/2022] Open
Abstract
To further understand cellulose-solvent interactions in aqueous hydroxide solutions, cellulose behavior in aqueous solutions of NaOH combined with tetramethylammonium hydroxide (TMAH) or benzyltrimethylammonium hydroxide (Triton B), as well as urea, was investigated. The rheological properties of the solutions were assessed through flow sweeps at different temperatures, and the intermolecular interactions were probed using solvatochromic dyes. The results showed that NaOH combined with TMAH had synergistic effects on cellulose dissolution and was a better solvent for cellulose than the combination of NaOH with Triton B, in spite of the superior dissolution ability of Triton B alone. This somewhat unexpected finding shows that the base pair needs to be selected with care. Interestingly, addition of urea had no significant effect on the solvatochromic parameters or dissolution capacity of solutions of Triton B but rendered improved stability of solutions containing NaOH and/or TMAH. It seems that both urea and Triton B weaken the hydrophobic assembly effect of these solutions, but urea is excluded from interacting with cellulose in the presence of Triton B. This study provides further insight into dissolution of cellulose and the possibility of utilizing combinations of hydroxide bases to achieve improved solution properties.
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19
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Simona P, Ulrica E. Renewable Molecules & Materials: Anselme Payen Award Symposium in Honor of Ann-Christine Albertsson. Biomacromolecules 2020; 21:1647-1652. [DOI: 10.1021/acs.biomac.0c00507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Percec Simona
- Chemistry, Temple University, Philadelphia, Pennsylvania, United States
- Fibre- and Polymer Technology, Kungliga Tekniska Hogskolan, Stockholm, Sweden
| | - Edlund Ulrica
- Chemistry, Temple University, Philadelphia, Pennsylvania, United States
- Fibre- and Polymer Technology, Kungliga Tekniska Hogskolan, Stockholm, Sweden
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20
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Druel L, Kenkel A, Baudron V, Buwalda S, Budtova T. Cellulose Aerogel Microparticles via Emulsion-Coagulation Technique. Biomacromolecules 2020; 21:1824-1831. [PMID: 32011867 DOI: 10.1021/acs.biomac.9b01725] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cellulose aerogel microparticles were made via emulsification/nonsolvent induced phase separation/drying with supercritical CO2. Cellulose was dissolved in NaOH-based solvent with and without additives in order to control solution gelation. Two emulsions, cellulose solution/oil and cellulose nonsolvent/oil, were mixed to start nonsolvent induced phase separation (or coagulation) of cellulose inside each cellulose droplet leading to the formation of so-called microgels. Different options of triggering coagulation were tested, by coalescence of droplets of cellulose solution and cellulose nonsolvent and by diffusion of nonsolvent partly soluble in the oil, accompanied by coalescence. The second option was found to be the most efficient for stabilization of the shape of coagulated cellulose microgels. The influence of gelation on particle formation and aerogel properties was investigated. The aerogel particles' diameter was around a few tens of microns, and the specific surface area was 250-350 m2/g.
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Affiliation(s)
- Lucile Druel
- MINES ParisTech, PSL Research University, Center for Materials Forming (CEMEF), UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France
| | - Amelie Kenkel
- MINES ParisTech, PSL Research University, Center for Materials Forming (CEMEF), UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France.,Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany
| | - Victor Baudron
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany
| | - Sytze Buwalda
- MINES ParisTech, PSL Research University, Center for Materials Forming (CEMEF), UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France
| | - Tatiana Budtova
- MINES ParisTech, PSL Research University, Center for Materials Forming (CEMEF), UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France
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21
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Yang J, Medronho B, Lindman B, Norgren M. Simple One Pot Preparation of Chemical Hydrogels from Cellulose Dissolved in Cold LiOH/Urea. Polymers (Basel) 2020; 12:E373. [PMID: 32046040 PMCID: PMC7077449 DOI: 10.3390/polym12020373] [Citation(s) in RCA: 9] [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: 12/12/2019] [Revised: 02/01/2020] [Accepted: 02/03/2020] [Indexed: 11/17/2022] Open
Abstract
In this work, non-derivatized cellulose pulp was dissolved in a cold alkali solution (LiOH/urea) and chemically cross-linked with methylenebisacrylamide (MBA) to form a robust hydrogel with superior water absorption properties. Different cellulose concentrations (i.e., 2, 3 and 4 wt%) and MBA/glucose molar ratios (i.e., 0.26, 0.53 and 1.05) were tested. The cellulose hydrogel cured at 60 °C for 30 min, with a MBA/glucose molar ratio of 1.05, exhibited the highest water swelling capacity absorbing ca. 220 g H2O/g dry hydrogel. Moreover, the data suggest that the cross-linking occurs via a basic Michael addition mechanism. This innovative procedure based on the direct dissolution of unmodified cellulose in LiOH/urea followed by MBA cross-linking provides a simple and fast approach to prepare chemically cross-linked non-derivatized high-molecular-weight cellulose hydrogels with superior water uptake capacity.
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Affiliation(s)
- Jiayi Yang
- FSCN, Surface and Colloid Engineering, Mid Sweden University, SE-851 70 Sundsvall, Sweden; (J.Y.); (B.M.); (B.L.)
| | - Bruno Medronho
- FSCN, Surface and Colloid Engineering, Mid Sweden University, SE-851 70 Sundsvall, Sweden; (J.Y.); (B.M.); (B.L.)
- MED—Mediterranean Institute for Agriculture, Environment and Development, Faculty of Sciences and Technology, Campus de Gambelas, Ed. 8, University of Algarve, 8005-139 Faro, Portugal
| | - Björn Lindman
- FSCN, Surface and Colloid Engineering, Mid Sweden University, SE-851 70 Sundsvall, Sweden; (J.Y.); (B.M.); (B.L.)
- Physical Chemistry, University of Lund, SE-221 00 Lund, Sweden
- Chemistry Department, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Magnus Norgren
- FSCN, Surface and Colloid Engineering, Mid Sweden University, SE-851 70 Sundsvall, Sweden; (J.Y.); (B.M.); (B.L.)
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22
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Martin-Bertelsen B, Andersson E, Köhnke T, Hedlund A, Stigsson L, Olsson U. Revisiting the Dissolution of Cellulose in NaOH as "Seen" by X-rays. Polymers (Basel) 2020; 12:E342. [PMID: 32033419 PMCID: PMC7077394 DOI: 10.3390/polym12020342] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/16/2020] [Accepted: 01/19/2020] [Indexed: 11/16/2022] Open
Abstract
Cotton production is reaching a global limit, leading to a growing demand for bio-based textile fibers produced by other means. Textile fibers based on regenerated cellulose from wood holds great potential, but in order to produce fibers, the components need to be dissolved in suitable solvents. Furthermore, the dissolution process of cellulose is not yet fully understood. In this study, we investigated the dissolution state of microcrystalline cellulose in aqueous NaOH by using primarily scattering methods. Contrary to previous findings, this study indicated that cellulose concentrations of up to 2 wt % are completely molecularly dissolved in 8 wt % NaOH. Scattering data furthermore revealed the presence of semi-flexible cylinders with stiff segments. In order to improve the dissolution capability of NaOH, the effects of different additives have been of interest. In this study, scattering data indicated that the addition of ZnO decreased the formation of aggregates, while the addition of PEG did not improve the dissolution properties significantly, although preliminary NMR data did suggest a weak attraction between PEG and cellulose. Overall, this study sheds further light on the dissolution of cellulose in NaOH and highlights the use of scattering methods to assess solvent quality.
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Affiliation(s)
| | - Erika Andersson
- Division of Physical Chemistry, Lund University, 221 00 Lund, Sweden
| | - Tobias Köhnke
- Division Materials and Production, RISE Research Institutes of Sweden, 431 53 Mölndal, Sweden
| | - Artur Hedlund
- Division Materials and Production, RISE Research Institutes of Sweden, 431 53 Mölndal, Sweden
| | - Lars Stigsson
- KIRAM AB, Norra Villavägen 17, 237 34 Bjärred, Sweden
| | - Ulf Olsson
- Division of Physical Chemistry, Lund University, 221 00 Lund, Sweden
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23
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Zhang L, Shi W, Wang J, Jin L, Hu G, Zheng Q, Xie H, Chen P. Unique gelation and rheological properties of the cellulose/CO 2-based reversible ionic liquid/DMSO solutions. Carbohydr Polym 2019; 222:115024. [PMID: 31320088 DOI: 10.1016/j.carbpol.2019.115024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 06/23/2019] [Accepted: 06/24/2019] [Indexed: 11/28/2022]
Abstract
Gelation and rheological behaviors of cellulose/CO2-based reversible ionic liquid (RIL)/DMSO solutions were investigated. The exponents of specific viscosity ηsp versus concentration c were determined for wood pulp (WP) and microcrystalline cellulose (MCC) solutions. The complex viscosity acquired using oscillatory shear closely follows the steady shear viscosity, thus revealing the applicability of Cox-Merz rule. The influence of RIL content in the solvent on apparent viscosities, activation energy, intrinsic viscosities, specific viscosity-c[η] master curve, and relaxation time were also investigated. Gelation occurred in this cellulose solution system due to thermal-induced CO2 release from the decomposition of the CO2-based reversible ionic liquid. The formed gel was stable in air, but re-dissolved when exposed to CO2, indicating the switch-on and switch-off effects of CO2 in cellulose dissolution and gelation.
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Affiliation(s)
- Lihua Zhang
- Department of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang, 550025, China
| | - Wentao Shi
- Zhejiang Key Laboratory of Bio-Based Polymeric Materials Technology and Application, Ningbo Key Laboratory of Polymer Materials, Ningbo Institute of Materials Technology and Engineering (NIMTE), CAS, Ningbo, 315201, China
| | - Junqin Wang
- Department of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang, 550025, China
| | - Longming Jin
- Department of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang, 550025, China
| | - Gang Hu
- Department of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang, 550025, China
| | - Qiang Zheng
- Department of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang, 550025, China
| | - Haibo Xie
- Department of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang, 550025, China.
| | - Peng Chen
- Zhejiang Key Laboratory of Bio-Based Polymeric Materials Technology and Application, Ningbo Key Laboratory of Polymer Materials, Ningbo Institute of Materials Technology and Engineering (NIMTE), CAS, Ningbo, 315201, China.
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24
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Korhonen O, Budtova T. Gelation of cellulose-NaOH solutions in the presence of cellulose fibers. Carbohydr Polym 2019; 224:115152. [PMID: 31472859 DOI: 10.1016/j.carbpol.2019.115152] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 07/26/2019] [Accepted: 07/31/2019] [Indexed: 10/26/2022]
Abstract
It is well known that when cellulose is dissolved in aqueous NaOH-based solvent, solutions are gelling with increasing time and temperature. The goal of this work was to understand if the presence of non-dissolved cellulose fibers influences gelation behavior of the whole system. One of the motivations is to control gelation when making all-cellulose composites with short fibers dispersed in cellulose-NaOH-water solutions. Gelation kinetics of cellulose(dissolving pulp)-NaOH-water solutions with added softwood kraft fibers were investigated using dynamic rheology. Fiber concentration, dissolving pulp degree of polymerization and solution temperature were varied. In all cases the addition of kraft fibers accelerates gelation and increases modulus at gel point while the presence of "inert" carbon fibers does not influence solution gelation kinetics. It was suggested that acceleration of gelation and reinforcement of cellulose gels is due to the interactions between dissolved and non-dissolved cellulose.
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Affiliation(s)
- Oona Korhonen
- Aalto University, School of Chemical Engineering, Department of Bioproducts and Biosystems, P.O. Box 16300, 00076 AaltoFinland
| | - Tatiana Budtova
- Aalto University, School of Chemical Engineering, Department of Bioproducts and Biosystems, P.O. Box 16300, 00076 AaltoFinland; MINES ParisTech, PSL Research University, CEMEF - Center for materials forming, UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France.
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25
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Zhang D, Wang Y, Shi Z. Influences of diffusion coefficient of 1-allyl-3-methylimidazolium chloride on structure and properties of regenerated cellulose fiber obtained via dry-jet-wet spinning. J Appl Polym Sci 2019. [DOI: 10.1002/app.47609] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Desheng Zhang
- College of Textile and Garment; Southwest University; Chongqing 400715 China
- Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile; Chongqing 400715 China
| | - Yixin Wang
- College of Textile and Garment; Southwest University; Chongqing 400715 China
- Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile; Chongqing 400715 China
| | - Zhenghui Shi
- College of Textile and Garment; Southwest University; Chongqing 400715 China
- Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile; Chongqing 400715 China
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26
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Yuan C, Shi W, Chen P, Chen H, Zhang L, Hu G, Jin L, Xie H, Zheng Q, Lu S. Dissolution and transesterification of cellulose in γ-valerolactone promoted by ionic liquids. NEW J CHEM 2019. [DOI: 10.1039/c8nj03505a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ionic liquids act as promoters for the dissolution of cellulose in GVL and also as catalysts for cellulose derivatization in GVL, providing a green and effective solvent system for cellulose processing and derivatization.
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27
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New Insights on the Role of Urea on the Dissolution and Thermally-Induced Gelation of Cellulose in Aqueous Alkali. Gels 2018; 4:gels4040087. [PMID: 30674863 PMCID: PMC6318579 DOI: 10.3390/gels4040087] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/29/2018] [Accepted: 12/04/2018] [Indexed: 02/05/2023] Open
Abstract
The gelation of cellulose in alkali solutions is quite relevant, but still a poorly understood process. Moreover, the role of certain additives, such as urea, is not consensual among the community. Therefore, in this work, an unusual set of characterization methods for cellulose solutions, such as cryo-transmission electronic microscopy (cryo-TEM), polarization transfer solid-state nuclear magnetic resonance (PTssNMR) and diffusion wave spectroscopy (DWS) were employed to study the role of urea on the dissolution and gelation processes of cellulose in aqueous alkali. Cryo-TEM reveals that the addition of urea generally reduces the presence of undissolved cellulose fibrils in solution. These results are consistent with PTssNMR data, which show the reduction and in some cases the absence of crystalline portions of cellulose in solution, suggesting a pronounced positive effect of the urea on the dissolution efficiency of cellulose. Both conventional mechanical macrorheology and microrheology (DWS) indicate a significant delay of gelation induced by urea, being absent until ca. 60 °C for a system containing 5 wt % cellulose, while a system without urea gels at a lower temperature. For higher cellulose concentrations, the samples containing urea form gels even at room temperature. It is argued that since urea facilitates cellulose dissolution, the high entanglement of the cellulose chains in solution (above the critical concentration, C*) results in a strong three-dimensional network.
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28
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Ganesan K, Budtova T, Ratke L, Gurikov P, Baudron V, Preibisch I, Niemeyer P, Smirnova I, Milow B. Review on the Production of Polysaccharide Aerogel Particles. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E2144. [PMID: 30384442 PMCID: PMC6265924 DOI: 10.3390/ma11112144] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 10/10/2018] [Accepted: 10/23/2018] [Indexed: 02/04/2023]
Abstract
A detailed study of the production of polysaccharide aerogel (bio-aerogel) particles from lab to pilot scale is surveyed in this article. An introduction to various droplets techniques available in the market is given and compared with the lab scale production of droplets using pipettes and syringes. An overview of the mechanisms of gelation of polysaccharide solutions together with non-solvent induced phase separation option is then discussed in the view of making wet particles. The main steps of particle recovery and solvent exchange are briefly described in order to pass through the final drying process. Various drying processes are overviewed and the importance of supercritical drying is highlighted. In addition, we present the characterization techniques to analyse the morphology and properties of the aerogels. The case studies of bio-aerogel (agar, alginate, cellulose, chitin, κ-carrageenan, pectin and starch) particles are reviewed. Potential applications of polysaccharide aerogel particles are briefly given. Finally, the conclusions summarize the prospects of the potential scale-up methods for producing bio-aerogel particles.
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Affiliation(s)
- Kathirvel Ganesan
- German Aerospace Center, Institute of Materials Research, Linder Hoehe, 51147 Cologne, Germany.
| | - Tatiana Budtova
- MINES Paris Tech, PSL Research University, Center for Materials Forming (CEMEF), UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France.
| | - Lorenz Ratke
- German Aerospace Center, Institute of Materials Research, Linder Hoehe, 51147 Cologne, Germany.
| | - Pavel Gurikov
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany.
| | - Victor Baudron
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany.
| | - Imke Preibisch
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany.
| | - Philipp Niemeyer
- German Aerospace Center, Institute of Materials Research, Linder Hoehe, 51147 Cologne, Germany.
| | - Irina Smirnova
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany.
| | - Barbara Milow
- German Aerospace Center, Institute of Materials Research, Linder Hoehe, 51147 Cologne, Germany.
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29
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Xu J, Liu S, Chen G, Chen T, Song T, Wu J, Shi C, He M, Tian J. Engineering Biocompatible Hydrogels from Bicomponent Natural Nanofibers for Anticancer Drug Delivery. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:935-942. [PMID: 29283261 DOI: 10.1021/acs.jafc.7b04210] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Natural hydrogels have attracted extensive research interest and shown great potential for many biomedical applications. In this study, a series of biocompatible hydrogels was reported based on the self-assembly of positively charged partially deacetylated α-chitin nanofibers (α-DECHN) and negatively charged 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose nanofibers (TOCNF) for anticancer drug delivery. The formation mechanisms of the α-DECHN/TOCNF hydrogels with different mixing proportions were studied, and their morphological, mechanical, and swelling properties were comprehensively investigated. Additionally, the drug delivery performance of the hydrogels was compared via sustained release test of an anticancer drug (5-fluorouracil). The results showed that the hydrogel with higher physical cross-linking degree exhibited a higher drug loading efficiency and drug release percentage.
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Affiliation(s)
- Junfei Xu
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering and ‡School of Medicine, South China University of Technology , Guangzhou 510640, P. R. China
| | - Shan Liu
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering and ‡School of Medicine, South China University of Technology , Guangzhou 510640, P. R. China
| | - Guangxue Chen
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering and ‡School of Medicine, South China University of Technology , Guangzhou 510640, P. R. China
| | - Ting Chen
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering and ‡School of Medicine, South China University of Technology , Guangzhou 510640, P. R. China
| | - Tao Song
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering and ‡School of Medicine, South China University of Technology , Guangzhou 510640, P. R. China
| | - Jing Wu
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering and ‡School of Medicine, South China University of Technology , Guangzhou 510640, P. R. China
| | - Congcan Shi
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering and ‡School of Medicine, South China University of Technology , Guangzhou 510640, P. R. China
| | - Minghui He
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering and ‡School of Medicine, South China University of Technology , Guangzhou 510640, P. R. China
| | - Junfei Tian
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering and ‡School of Medicine, South China University of Technology , Guangzhou 510640, P. R. China
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30
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Acharya S, Hu Y, Abidi N. Mild condition dissolution of high molecular weight cotton cellulose in 1-butyl-3-methylimidazolium acetate/N,N
-dimethylacetamide solvent system. J Appl Polym Sci 2017. [DOI: 10.1002/app.45928] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Sanjit Acharya
- Fiber and Biopolymer Research Institute, Department of Plant and Soil Science; Texas Tech University; Lubbock Texas 79409
| | - Yang Hu
- Fiber and Biopolymer Research Institute, Department of Plant and Soil Science; Texas Tech University; Lubbock Texas 79409
| | - Noureddine Abidi
- Fiber and Biopolymer Research Institute, Department of Plant and Soil Science; Texas Tech University; Lubbock Texas 79409
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31
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Yuan X, Yuan C, Shi W, Chen P, Chen H, Xie H, Xu Q, Guo Y, Zheng Q. Propylene Carbonate Based-Organic Electrolytes for Cellulose Dissolution Processing and Derivatization. ChemistrySelect 2017. [DOI: 10.1002/slct.201700535] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xia Yuan
- Department of Polymer Materials and Engineering; College of Materials and Metallurgy, Guizhou University; Huaxi District Guiyang 550025 P. R.China
| | - Chaoping Yuan
- Department of Polymer Materials and Engineering; College of Materials and Metallurgy, Guizhou University; Huaxi District Guiyang 550025 P. R.China
| | - Wentao Shi
- Ningbo Key Laboratory of Polymer Materials, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE); Chinese Academic of Science; Ningbo 315201 P.R.China
| | - Peng Chen
- Ningbo Key Laboratory of Polymer Materials, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE); Chinese Academic of Science; Ningbo 315201 P.R.China
| | - Huaxin Chen
- Department of Polymer Materials and Engineering; College of Materials and Metallurgy, Guizhou University; Huaxi District Guiyang 550025 P. R.China
| | - Haibo Xie
- Department of Polymer Materials and Engineering; College of Materials and Metallurgy, Guizhou University; Huaxi District Guiyang 550025 P. R.China
| | - Qinqin Xu
- Department of Polymer Materials and Engineering; College of Materials and Metallurgy, Guizhou University; Huaxi District Guiyang 550025 P. R.China
| | - Yuanlong Guo
- Department of Polymer Materials and Engineering; College of Materials and Metallurgy, Guizhou University; Huaxi District Guiyang 550025 P. R.China
| | - Qiang Zheng
- Department of Polymer Materials and Engineering; College of Materials and Metallurgy, Guizhou University; Huaxi District Guiyang 550025 P. R.China
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32
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Carrera GVSM, Raymundo A, Fernandes FMB, Jordão N, Sousa I, da Ponte MN, Branco LC. Tetramethylguanidine-based gels and colloids of cellulose. Carbohydr Polym 2017; 169:58-64. [PMID: 28504178 DOI: 10.1016/j.carbpol.2017.03.084] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 03/13/2017] [Accepted: 03/27/2017] [Indexed: 10/19/2022]
Abstract
Novel and stable gels of cellulose were produced. These gels are prepared at room temperature by combination of cellulose and tetramethylguanidine (TMG) in different ratios (1:1, 1:2, 1:3 in equivalents of alcohol groups of cellulose per number of molecules of TMG). Detailed NMR, SEM, rheological and XRD studies of these gels were carried out. The concentration of cellulose in the gel, temperature, frequency of oscillation and shear rate were used as variables in order to understand the fundamentals and optimize operational conditions, considering their possible use as matrices for CO2 capture. Cellulose recovery from a specific gel was performed using ethanol as precipitating agent, leading to a lower crystallinity, which permits to consider this polymer in further studies associated to physical/chemical modification of cellulose.
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Affiliation(s)
- Gonçalo V S M Carrera
- LAQV/REQUIMTE Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, CQFB/REQUIMTE, 2829-516 Caparica, Portugal.
| | - Anabela Raymundo
- Instituto Superior de Agronomia, Universidade de Lisboa, LEAF - Linking Landscape Environment Agriculture and Food, Tapada da Ajuda, 1349-017 Lisboa, Portugal.
| | - Francisco M Braz Fernandes
- CENIMAT/I3N, Materials Science Departament, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
| | - Noémi Jordão
- LAQV/REQUIMTE Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, CQFB/REQUIMTE, 2829-516 Caparica, Portugal.
| | - Isabel Sousa
- Instituto Superior de Agronomia, Universidade de Lisboa, LEAF - Linking Landscape Environment Agriculture and Food, Tapada da Ajuda, 1349-017 Lisboa, Portugal.
| | - Manuel Nunes da Ponte
- LAQV/REQUIMTE Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, CQFB/REQUIMTE, 2829-516 Caparica, Portugal.
| | - Luís C Branco
- LAQV/REQUIMTE Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, CQFB/REQUIMTE, 2829-516 Caparica, Portugal.
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33
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Bialik E, Stenqvist B, Fang Y, Östlund Å, Furó I, Lindman B, Lund M, Bernin D. Ionization of Cellobiose in Aqueous Alkali and the Mechanism of Cellulose Dissolution. J Phys Chem Lett 2016; 7:5044-5048. [PMID: 27973886 DOI: 10.1021/acs.jpclett.6b02346] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Cellulose, one of the most abundant renewable resources, is insoluble in most common solvents but dissolves in aqueous alkali under a narrow range of conditions. To elucidate the solubilization mechanism, we performed electrophoretic NMR on cellobiose, a subunit of cellulose, showing that cellobiose acts as an acid with two dissociation steps at pH 12 and 13.5. Chemical shift differences between cellobiose in NaOH and NaCl were estimated using 2D NMR and compared to DFT shift differences upon deprotonation. The dissociation steps are the deprotonation of the hemiacetal OH group and the deprotonation of one of four OH groups on the nonreducing anhydroglucose unit. MD simulations reveal that aggregation is suppressed upon charging cellulose chains in solution. Our findings strongly suggest that cellulose is to a large extent charged in concentrated aqueous alkali, a seemingly crucial factor for solubilization. This insight, overlooked in the current literature, is important for understanding cellulose dissolution and for synthesis of new sustainable materials.
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Affiliation(s)
- Erik Bialik
- Division of Theoretical Chemistry, Lund University , 221 00 Lund, Sweden
| | - Björn Stenqvist
- Division of Theoretical Chemistry, Lund University , 221 00 Lund, Sweden
| | - Yuan Fang
- Division of Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology , 114 00 Stockholm, Sweden
| | - Åsa Östlund
- Sustainable Built Environment, SP Technical Research Institute of Sweden , 114 28 Stockholm, Sweden
| | - István Furó
- Division of Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology , 114 00 Stockholm, Sweden
| | - Björn Lindman
- Division of Physical Chemistry, Lund University , 221 00 Lund, Sweden
| | - Mikael Lund
- Division of Theoretical Chemistry, Lund University , 221 00 Lund, Sweden
| | - Diana Bernin
- Swedish NMR Centre, University of Gothenburg , 405 30 Göteborg, Sweden
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Lee YJ, Kwon MK, Lee SJ, Jeong SW, Kim HC, Oh TH, Lee SG. Influence of water on phase transition and rheological behavior of cellulose/ionic liquid/water ternary systems. J Appl Polym Sci 2016. [DOI: 10.1002/app.44658] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Young Jae Lee
- Division of Nano and Energy Convergence Research; Daegu Gyeongbuk Institute of Science and Technology (DGIST); Daegu 42988 Republic of Korea
| | - Mi Kyung Kwon
- Division of Nano and Energy Convergence Research; Daegu Gyeongbuk Institute of Science and Technology (DGIST); Daegu 42988 Republic of Korea
| | - Sung Jun Lee
- Division of Nano and Energy Convergence Research; Daegu Gyeongbuk Institute of Science and Technology (DGIST); Daegu 42988 Republic of Korea
| | - Sang Won Jeong
- Division of Nano and Energy Convergence Research; Daegu Gyeongbuk Institute of Science and Technology (DGIST); Daegu 42988 Republic of Korea
| | - Hyun-Chul Kim
- Division of Nano and Energy Convergence Research; Daegu Gyeongbuk Institute of Science and Technology (DGIST); Daegu 42988 Republic of Korea
| | - Tae Hwan Oh
- Department of Nano Medical and Polymer Materials; Yeungnam University; Gyeongsan 38541 Republic of Korea
| | - Se Geun Lee
- Division of Nano and Energy Convergence Research; Daegu Gyeongbuk Institute of Science and Technology (DGIST); Daegu 42988 Republic of Korea
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Ciolacu D, Rudaz C, Vasilescu M, Budtova T. Physically and chemically cross-linked cellulose cryogels: Structure, properties and application for controlled release. Carbohydr Polym 2016; 151:392-400. [DOI: 10.1016/j.carbpol.2016.05.084] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 05/09/2016] [Accepted: 05/23/2016] [Indexed: 11/28/2022]
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36
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Molecular characterization of thermoreversibility and temperature dependent physical properties of cellulose solution in N,N-dimethylacetamide and lithium chloride. Macromol Res 2016. [DOI: 10.1007/s13233-016-4073-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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37
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Molecular Characterization on the Anomalous Viscosity Behavior of Cellulose Solutions in N,N-Dimethyl Acetamide and Lithium Chloride. Macromol Res 2016. [DOI: 10.1007/s13233-016-4059-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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38
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Alayoubi A, Daihom B, Adhikari H, Mishra S, Helms R, Almoazen H. Development of a taste-masked oral suspension of clindamycin HCl using ion exchange resin Amberlite IRP 69 for use in pediatrics. Drug Dev Ind Pharm 2016; 42:1579-89. [DOI: 10.3109/03639045.2016.1160102] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Raut DG, Sundman O, Su W, Virtanen P, Sugano Y, Kordas K, Mikkola JP. A morpholinium ionic liquid for cellulose dissolution. Carbohydr Polym 2015; 130:18-25. [PMID: 26076596 DOI: 10.1016/j.carbpol.2015.04.032] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 04/17/2015] [Accepted: 04/20/2015] [Indexed: 10/23/2022]
Abstract
A series of substituted morpholinium ionic salts and allyl ammonium acetates were prepared. Amongst those, N-allyl-N-methylmorpholinium acetate ([AMMorp][OAc]) was found to dissolve cellulose readily without any pre-processing of native cellulose. At 120°C, [AMMorp][OAc] could dissolve 30 wt%, 28 wt% and 25 wt% of cellulose with degree of polymerization (DPn) - 789, 1644 and 2082 respectively, in 20 min. Importantly, SEC analysis indicated that no discernible changes occurred in terms of the degree of polymerization of the different celluloses after regeneration. Furthermore, when comparing the cellulose dissolution capability of these newly synthesized ionic liquids, it is evident that the combination of all three constituents - the morpholinium cation, the existence of an allyl group and choosing the acetate anion are essential for efficient cellulose dissolution. The structure and morphology of the regenerated cellulosic materials were characterized by SEM, XRD, TGA, CP/MAS (13)C NMR and FTIR, respectively.
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Affiliation(s)
- Dilip G Raut
- Umeå University, Department of Chemistry, Chemical-Biology Centre, Technical Chemistry, SE-90187 Umeå, Sweden.
| | - Ola Sundman
- Umeå University, Department of Chemistry, Chemical-Biology Centre, Technical Chemistry, SE-90187 Umeå, Sweden.
| | - Weiqing Su
- Umeå University, Department of Chemistry, Chemical-Biology Centre, Technical Chemistry, SE-90187 Umeå, Sweden.
| | - Pasi Virtanen
- Åbo Akademi University, Process Chemistry Centre, Laboratory of Industrial Chemistry and Reaction Engineering, FI-20500 Turku/Åbo, Finland.
| | - Yasuhito Sugano
- Åbo Akademi University, Laboratory of Analytical Chemistry, Process Chemsitry Centre, FI-20500 Turku/Åbo, Finland.
| | - Krisztian Kordas
- Microelectronics and Materials Physics Laboratories, Department of Electrical Engineering, University of Oulu, P.O. Box 4500, FIN-90014, Finland.
| | - Jyri-Pekka Mikkola
- Umeå University, Department of Chemistry, Chemical-Biology Centre, Technical Chemistry, SE-90187 Umeå, Sweden; Åbo Akademi University, Process Chemistry Centre, Laboratory of Industrial Chemistry and Reaction Engineering, FI-20500 Turku/Åbo, Finland.
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Saarikoski E, Rissanen M, Seppälä J. Effect of rheological properties of dissolved cellulose/microfibrillated cellulose blend suspensions on film forming. Carbohydr Polym 2015; 119:62-70. [DOI: 10.1016/j.carbpol.2014.11.033] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 11/13/2014] [Accepted: 11/16/2014] [Indexed: 11/15/2022]
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Wang W, Li F, Yu J, Navard P, Budtova T. Influence of substitution on the rheological properties and gelation of hydroxyethyl cellulose solution in NaOH-water solvent. Carbohydr Polym 2015; 124:85-9. [PMID: 25839797 DOI: 10.1016/j.carbpol.2015.01.065] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Revised: 01/24/2015] [Accepted: 01/28/2015] [Indexed: 10/24/2022]
Abstract
The rheological properties of hydroxyethyl cellulose (HEC) with a low molar substitution (MS) dissolved in 8wt% NaOH-water were studied as a function of solution temperature, polymer concentration and molar substitution. Special attention was paid to gelation kinetics. Similar to cellulose dissolved in alkali or ionic liquids, the intrinsic viscosity of HEC decreased with temperature increase, indicating a decrease of solvent thermodynamic quality. The gelation time of HEC solutions decreased exponentially with temperature but the kinetics is much slower than the gelation of microcrystalline cellulose solutions in the same solvent. Higher molar substitution leads to slower gelation. The small amount of introduced hydroxyethyl groups prevented cellulose aggregation thus increasing solution stability.
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Affiliation(s)
- Wencong Wang
- College of Textiles, Donghua University, Shanghai 201620, China; MINES ParisTech, PSL Research University, CEMEF - Centre de Mise en Forme des matériaux, CNRS UMR 7635, CS 10207 rue Claude Daunesse, 06904 Sophia Antipolis Cedex, France
| | - Faxue Li
- College of Textiles, Donghua University, Shanghai 201620, China
| | - Jianyong Yu
- Modern Textile Institute, Donghua University, Shanghai 200051, China
| | - Patrick Navard
- MINES ParisTech, PSL Research University, CEMEF - Centre de Mise en Forme des matériaux, CNRS UMR 7635, CS 10207 rue Claude Daunesse, 06904 Sophia Antipolis Cedex, France.
| | - Tatiana Budtova
- MINES ParisTech, PSL Research University, CEMEF - Centre de Mise en Forme des matériaux, CNRS UMR 7635, CS 10207 rue Claude Daunesse, 06904 Sophia Antipolis Cedex, France.
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Keshk SMAS. Effect of different alkaline solutions on crystalline structure of cellulose at different temperatures. Carbohydr Polym 2014; 115:658-62. [PMID: 25439945 DOI: 10.1016/j.carbpol.2014.09.045] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 09/02/2014] [Accepted: 09/09/2014] [Indexed: 10/24/2022]
Abstract
Effect of alkaline solutions such as 10% NaOH, NaOH/urea and NaOH/ethylene glycol solutions on crystalline structure of different cellulosic fibers (cotton linter and filter paper) was investigated at room temperature and -4°C. The highest dissolution of cotton linter and filter paper was observed in NaOH/ethylene glycol at both temperatures. X-ray patterns of treated cotton linter with different alkaline solutions at low temperature showed only two diffractions at 2θ=12.5° and 21.0°, which belonged to the crystalline structure of cellulose II. CP/MAS (13)C NMR spectra showed the doublet peaks at 89.2 ppm and 88.3 ppm representing C4 resonance for cellulose I at room temperature, Whereas, at low temperature the doublet peaks were observed at 89.2 ppm and 87.8 ppm representing C4 resonance for cellulose II. Degree of polymerization of cellulose plays an important role in cellulose dissolution in different alkaline solutions and temperatures, where, a low temperature gives high dissolutions percentage with change in crystalline structure from cellulose I to cellulose II forms.
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Affiliation(s)
- Sherif M A S Keshk
- King Khalid University, Faculty of Science, Chemistry Department, P.O. Box 9004, Abha 61413, Saudi Arabia; Ain-Shams University, Institute of Environmental Studies and Research, Basic Science Department, Abbassia, Cairo 11566, Egypt.
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44
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Geng H, Yuan Z, Fan Q, Dai X, Zhao Y, Wang Z, Qin M. Characterisation of cellulose films regenerated from acetone/water coagulants. Carbohydr Polym 2014; 102:438-44. [DOI: 10.1016/j.carbpol.2013.11.071] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 11/28/2013] [Indexed: 10/25/2022]
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45
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Ionic Liquids as Solvents for Homogeneous Derivatization of Cellulose: Challenges and Opportunities. PRODUCTION OF BIOFUELS AND CHEMICALS WITH IONIC LIQUIDS 2014. [DOI: 10.1007/978-94-007-7711-8_5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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46
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Saarikoski E, Rautkoski H, Rissanen M, Hartman J, Seppälä J. Cellulose/acrylic acid copolymer blends for films and coating applications. J Appl Polym Sci 2013. [DOI: 10.1002/app.40286] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Eve Saarikoski
- Aalto University; School of Chemical Technology; Polymer Technology; P.O. Box 16100, FI-00076 Aalto Finland
| | - Hille Rautkoski
- VTT Technical Research Centre of Finland; Biologinkuja 7, P.O. Box 1000, FI-02044 VTT Finland
| | - Marja Rissanen
- Tampere University of Technology; Department of Materials Science; P.O. Box 589, FI-33101 Tampere Finland
| | - Jonas Hartman
- VTT Technical Research Centre of Finland; Biologinkuja 7, P.O. Box 1000, FI-02044 VTT Finland
| | - Jukka Seppälä
- Aalto University; School of Chemical Technology; Polymer Technology; P.O. Box 16100, FI-00076 Aalto Finland
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47
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Morgado DL, Rodrigues BVM, Almeida EVR, Seoud OAE, Frollini E. Bio-based Films from Linter Cellulose and Its Acetates: Formation and Properties. MATERIALS 2013; 6:2410-2435. [PMID: 28809281 PMCID: PMC5458961 DOI: 10.3390/ma6062410] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Revised: 05/29/2013] [Accepted: 06/03/2013] [Indexed: 11/22/2022]
Abstract
This paper describes the results obtained on the preparation of films composed of linter cellulose and the corresponding acetates. The acetylation was carried out in the LiCl/DMAc solvent system. Films were prepared from a LiCl/DMAc solution of cellulose acetates (degree of substitution, DS 0.8–2.9) mixed with linter cellulose (5, 10 and 15 wt %). Detailed characterization of the films revealed the following: (i) they exhibited fibrous structures on their surfaces. The strong tendency of the linter cellulose chains to aggregate in LiCl/DMAc suggests that these fibrous elements consist of cellulose chains, as can be deduced from SEM images of the film of cellulose proper; (ii) the cellulose acetate films obtained from samples with DS 2.1 and 2.9 exhibited microspheres on the surface, whose formation seems to be favored for acetates with higher DS; (iii) AFM analysis showed that, in general, the presence of cellulose increased both the asperity thickness and the surface roughness of the analyzed films, indicating that cellulose chains are at least partially organized in domains and not molecularly dispersed between acetate chains; and (iv) the films prepared from cellulose and acetates exhibited lower hygroscopicity than the acetate films, also suggesting that the cellulose chains are organized into domains, probably due to strong intermolecular interactions. The linter and sisal acetates (the latter from a prior study), and their respective films, were prepared using the same processes; however, the two sets of films presented more differences (as in humidity absorption, optical, and tensile properties) than similarities (as in some morphological aspects), most likely due to the different properties of the starting materials. Potential applications of the films prepared in tissue engineering scaffold coatings and/or drug delivery are mentioned.
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Affiliation(s)
- Daniella L Morgado
- Macromolecular Materials and Lignocellulosic Fibers Group, Center for Research on Science and Technology of BioResources, Institute of Chemistry of São Carlos, University of São Paulo, P.O. Box 780, São Carlos 13560-970, Brazil.
| | - Bruno V M Rodrigues
- Macromolecular Materials and Lignocellulosic Fibers Group, Center for Research on Science and Technology of BioResources, Institute of Chemistry of São Carlos, University of São Paulo, P.O. Box 780, São Carlos 13560-970, Brazil.
| | - Erika V R Almeida
- Macromolecular Materials and Lignocellulosic Fibers Group, Center for Research on Science and Technology of BioResources, Institute of Chemistry of São Carlos, University of São Paulo, P.O. Box 780, São Carlos 13560-970, Brazil.
| | - Omar A El Seoud
- Institute of Chemistry, University of São Paulo, P.O. Box 26077, São Paulo 05513-970, Brazil.
| | - Elisabete Frollini
- Macromolecular Materials and Lignocellulosic Fibers Group, Center for Research on Science and Technology of BioResources, Institute of Chemistry of São Carlos, University of São Paulo, P.O. Box 780, São Carlos 13560-970, Brazil.
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48
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Song HZ, Luo ZQ, Wang CZ, Hao XF, Gao JG. Preparation and characterization of bionanocomposite fiber based on cellulose and nano-SiO2 using ionic liquid. Carbohydr Polym 2013; 98:161-7. [PMID: 23987330 DOI: 10.1016/j.carbpol.2013.05.079] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 05/13/2013] [Accepted: 05/28/2013] [Indexed: 10/26/2022]
Abstract
Microcrystalline cellulose (MCC)/nano-SiO2 composite fibers were processed from solutions in 1-allyl-3-methylimidazolium chloride (AMIMCl) by the method of dry-jet wet spinning. The oscillatory shear measurements demonstrated that the gel network formed above 10 wt% nano-SiO2 and the complex viscosity increased with increasing nano-SiO2. Remarkably, the shear viscosity of the nanofluids was even lower than solutions without nano-SiO2 under high shear rates. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images revealed that well-dispersed particles exhibit strong interfacial interactions with cellulose matrix. Measurements on wide-angle X-ray diffraction (WAXD) indicated that the regenerated cellulose and nanocomposite fibers were the typical cellulose II crystalline form, which was different from the native cellulose with the polymorph of Type I. The tensile strength of the nanocomposite fibers was larger than that of pure cellulose fiber and showed a tendency to increase and then decrease with increasing nano-SiO2. Furthermore, the nanocomposite fibers exhibited improved thermal stability.
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Affiliation(s)
- Hong-Zan Song
- College of Chemistry & Environmental Science, Hebei University, Baoding 071002, PR China.
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49
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Liu W, Budtova T. Dissolution of unmodified waxy starch in ionic liquid and solution rheological properties. Carbohydr Polym 2013; 93:199-206. [DOI: 10.1016/j.carbpol.2012.01.090] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Revised: 01/26/2012] [Accepted: 01/31/2012] [Indexed: 10/14/2022]
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50
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Tanimoto T, Nakano T. Side-chain motion of components in wood samples partially non-crystallized using NaOH-water solution. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012; 33:1236-41. [PMID: 23827566 DOI: 10.1016/j.msec.2012.12.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 11/16/2012] [Accepted: 12/03/2012] [Indexed: 11/17/2022]
Abstract
Wood samples (Picea jezoensis Carr.) were treated with solutions of aqueous NaOH (0-0.20 concentration fraction) and each treated samples evaluated by dynamic mechanical analyses (DMA). NaOH treatment was shown to affect the interactions between microfibrils and the surrounding matrix and, in particular, the dynamics of methylol groups in the microfibrils. The former is not dependent on the degree of crystallization but rather on the eluviation of the matrix. The latter depends on the degree of crystallization. Alkali treatment induces changes in the polymer domains as a result of matrix eluviation. This decreases the dynamics of methylol groups at NaOH concentrations less than 0.11. On the other hand, alkali treatment causes non-crystallization at concentrations greater than 0.11, which quantitatively increases the flexibility of methylol groups. Crystallinity decreased, and main-chain dynamics increased, following treatment with highly concentrated NaOH solutions. The dynamics of lignin also increased due to weakened interactions with microfibrils due to non-crystallization.
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