1
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Hill R, Phipps J, Greenwood R, Skuse D, Zhang ZJ. The effect of pre-treatment and process conditions on the gas barrier properties of fibrillated cellulose films and coatings: A review. Carbohydr Polym 2024; 337:122085. [PMID: 38710579 DOI: 10.1016/j.carbpol.2024.122085] [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: 01/10/2024] [Revised: 03/22/2024] [Accepted: 03/23/2024] [Indexed: 05/08/2024]
Abstract
Microfibrillated cellulose (MFC) is a bio-material produced by disintegrating cellulose fibres into fibrillar components. MFC could offer a sustainable solution to packaging needs since it can form an excellent barrier to oxygen. However, a comprehensive understanding of how MFC characteristics impact barrier properties of MFC films or coatings is required. This article critically reviews how the extent of separation of fibres into fibrils-and any resulting changes to the crystallinity and degree of polymerisation of cellulose-influences gas barrier properties of MFC films or coatings. Findings from publications investigating the barrier performance of MFC prepared through different processes intending to increase the effectiveness of fibrillation are evaluated and compared. The effects of processing conditions or chemical pre-treatments on barrier properties of MFC films or coatings are then discussed. A comparison of reported results showed that morphology and size polydispersity of the cellulose strongly influence the barrier properties of MFC. However, changing the MFC production process to decrease fibril diameter and polydispersity can result in changes to cellulose crystallinity; reduction in fibril length; introduction of bulky functional groups; or increased fibril surface charge: all of which could have a negative impact on the barrier properties of the final films or coatings.
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Affiliation(s)
- Robyn Hill
- School of Chemical Engineering, University of Birmingham, Birmingham B15 2TT, UK; FiberLean Technologies, Par Moor Road, Par PL24 2SQ, UK.
| | - Jon Phipps
- FiberLean Technologies, Par Moor Road, Par PL24 2SQ, UK.
| | - Richard Greenwood
- School of Chemical Engineering, University of Birmingham, Birmingham B15 2TT, UK.
| | - David Skuse
- School of Chemical Engineering, University of Birmingham, Birmingham B15 2TT, UK; FiberLean Technologies, Par Moor Road, Par PL24 2SQ, UK.
| | - Zhenyu Jason Zhang
- School of Chemical Engineering, University of Birmingham, Birmingham B15 2TT, UK.
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2
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Hao LT, Kim S, Lee M, Park SB, Koo JM, Jeon H, Park J, Oh DX. Next-generation all-organic composites: A sustainable successor to organic-inorganic hybrid materials. Int J Biol Macromol 2024; 269:132129. [PMID: 38718994 DOI: 10.1016/j.ijbiomac.2024.132129] [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] [Received: 10/17/2023] [Revised: 04/16/2024] [Accepted: 05/05/2024] [Indexed: 05/30/2024]
Abstract
This Review presents an overview of all-organic nanocomposites, a sustainable alternative to organic-inorganic hybrids. All-organic nanocomposites contain nanocellulose, nanochitin, and aramid nanofibers as highly rigid reinforcing fillers. They offer superior mechanical properties and lightweight characteristics suitable for diverse applications. The Review discusses various methods for preparing the organic nanofillers, including top-down and bottom-up approaches. It highlights in situ polymerization as the preferred method for incorporating these nanomaterials into polymer matrices to achieve homogeneous filler dispersion, a crucial factor for realizing desired performance. Furthermore, the Review explores several applications of all-organic nanocomposites in diverse fields including food packaging, performance-advantaged plastics, and electronic materials. Future research directions-developing sustainable production methods, expanding biomedical applications, and enhancing resistance against heat, chemicals, and radiation of all-organic nanocomposites to permit their use in extreme environments-are explored. This Review offers insights into the potential of all-organic nanocomposites to drive sustainable growth while meeting the demand for high-performance materials across various industries.
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Affiliation(s)
- Lam Tan Hao
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Republic of Korea
| | - Semin Kim
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Republic of Korea
| | - Minkyung Lee
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Republic of Korea
| | - Sung Bae Park
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Republic of Korea
| | - Jun Mo Koo
- Department of Organic Materials Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Hyeonyeol Jeon
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Republic of Korea; Advanced Materials & Chemical Engineering, Korea National University of Science and Technology (UST), Daejeon 34113, Republic of Korea.
| | - Jeyoung Park
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Republic of Korea.
| | - Dongyeop X Oh
- Department of Polymer Science and Engineering and Program in Environmental and Polymer Engineering, Inha University, Incheon 22212, Republic of Korea.
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3
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Langwald SV, Ehrmann A, Sabantina L. Measuring Physical Properties of Electrospun Nanofiber Mats for Different Biomedical Applications. MEMBRANES 2023; 13:488. [PMID: 37233549 PMCID: PMC10220787 DOI: 10.3390/membranes13050488] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 05/27/2023]
Abstract
Electrospun nanofiber mats are nowadays often used for biotechnological and biomedical applications, such as wound healing or tissue engineering. While most studies concentrate on their chemical and biochemical properties, the physical properties are often measured without long explanations regarding the chosen methods. Here, we give an overview of typical measurements of topological features such as porosity, pore size, fiber diameter and orientation, hydrophobic/hydrophilic properties and water uptake, mechanical and electrical properties as well as water vapor and air permeability. Besides describing typically used methods with potential modifications, we suggest some low-cost methods as alternatives in cases where special equipment is not available.
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Affiliation(s)
- Sarah Vanessa Langwald
- Faculty of Engineering and Mathematics, Bielefeld University of Applied Sciences and Arts, 33619 Bielefeld, Germany;
| | - Andrea Ehrmann
- Faculty of Engineering and Mathematics, Bielefeld University of Applied Sciences and Arts, 33619 Bielefeld, Germany;
| | - Lilia Sabantina
- Faculty of Clothing Technology and Garment Engineering, School of Culture + Design, HTW Berlin—University of Applied Sciences, 12459 Berlin, Germany
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4
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Khan MJ, Karim Z, Charnnok B, Poonsawat T, Posoknistakul P, Laosiripojana N, Wu KCW, Sakdaronnarong C. Fabrication and Characterization of Functional Biobased Membranes from Postconsumer Cotton Fabrics and Palm Waste for the Removal of Dyes. Int J Mol Sci 2023; 24:ijms24076030. [PMID: 37047002 PMCID: PMC10094564 DOI: 10.3390/ijms24076030] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 03/08/2023] [Accepted: 03/13/2023] [Indexed: 04/14/2023] Open
Abstract
Textile industries currently face vast challenges for the active removal of colored wastewater. Indeed, sustainable, recyclable, and green approaches are still lacking to achieve this aim. Thus, the present study explored the utilization of highly functional, green, recyclable, fully bio-based, and cost-effective composite membranes from post-consumer cotton fabrics and palm waste for wastewater treatment purposes. Highly functional cellulose nanofibers (CNF) were produced from waste cotton fabrics and filter paper using an acid hydrolysis technique. The yield of nanofibers extracted from waste cotton fabrics and filter paper was 76.74 and 54.50%, respectively. The physical, chemical, and structural properties of nanofibers were studied using various advanced analytical techniques. The properties of isolated nanofibers were almost similar and comparable to those of commercial nanofibers. The surface charge densities were -94.0, -80.7, and -90.6 mV for the nanofibers of palm waste, cotton fibers, and filter paper, respectively. After membrane fabrication using vacuum and hot-pressing techniques, the characteristics of the membrane were analyzed. The results showed that the average pore size of the palm-waste membrane was 1.185 nm, while it was 1.875 nm for membrane from waste cotton fibers and filter paper. Congo red and methylene blue dyes were used as model solutions to understand the behavior of available functional groups and the surface ζ-potential of the membrane frameworks' interaction. The membrane made from palm waste had the highest dye removal efficiency, and it was 23% for Congo red and 44% for methylene blue. This study provides insights into the challenges associated with the use of postconsumer textile and agricultural waste, which can be potentially used in high-performance liquid filtration devices for a more sustainable society.
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Affiliation(s)
- Mohd Jahir Khan
- Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, Thailand
| | - Zoheb Karim
- MoRe Research Örnsköldsvik AB, SE-89122 Örnsköldsvik, Sweden
| | - Boonya Charnnok
- Department of Specialized Engineering, Energy Technology Program, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkla 90110, Thailand
| | - Thiprada Poonsawat
- Department of Science and Bioinnovation, Department of Science, Faculty of Liberal Art and Science, Kasetsart University, Kamphaeng Saen, Nakhon Pathom 73140, Thailand
| | - Pattaraporn Posoknistakul
- Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, Thailand
| | - Navadol Laosiripojana
- The Joint Graduate School of Energy and Environment, King Mongkut's University of Technology Thonburi, 126 Pracha Uthit Road, Bang Mot, Thung Khru, Bangkok 10140, Thailand
| | - Kevin C-W Wu
- Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4 Roosevelt Road, Taipei 10617, Taiwan
- Center of Atomic Initiative for New Materials (AI-MAT), National Taiwan University, Taipei 10617, Taiwan
- International Graduate Program of Molecular Science and Technology, National Taiwan University (NTU-MST), Taipei 10617, Taiwan
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-Li District, Taoyuan 320, Taiwan
- Yonsei Frontier Lab, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Chularat Sakdaronnarong
- Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, Thailand
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5
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Zhang Y, Poon K, Masonsong GSP, Ramaswamy Y, Singh G. Sustainable Nanomaterials for Biomedical Applications. Pharmaceutics 2023; 15:pharmaceutics15030922. [PMID: 36986783 PMCID: PMC10056188 DOI: 10.3390/pharmaceutics15030922] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/06/2023] [Accepted: 03/10/2023] [Indexed: 03/16/2023] Open
Abstract
Significant progress in nanotechnology has enormously contributed to the design and development of innovative products that have transformed societal challenges related to energy, information technology, the environment, and health. A large portion of the nanomaterials developed for such applications is currently highly dependent on energy-intensive manufacturing processes and non-renewable resources. In addition, there is a considerable lag between the rapid growth in the innovation/discovery of such unsustainable nanomaterials and their effects on the environment, human health, and climate in the long term. Therefore, there is an urgent need to design nanomaterials sustainably using renewable and natural resources with minimal impact on society. Integrating sustainability with nanotechnology can support the manufacturing of sustainable nanomaterials with optimized performance. This short review discusses challenges and a framework for designing high-performance sustainable nanomaterials. We briefly summarize the recent advances in producing sustainable nanomaterials from sustainable and natural resources and their use for various biomedical applications such as biosensing, bioimaging, drug delivery, and tissue engineering. Additionally, we provide future perspectives into the design guidelines for fabricating high-performance sustainable nanomaterials for medical applications.
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Affiliation(s)
- Yuhang Zhang
- School of Biomedical Engineering, The University of Sydney, Camperdown, NSW 2008, Australia
| | - Kingsley Poon
- School of Biomedical Engineering, The University of Sydney, Camperdown, NSW 2008, Australia
- Sydney Nano Institute, The University of Sydney, Camperdown, NSW 2008, Australia
| | | | - Yogambha Ramaswamy
- School of Biomedical Engineering, The University of Sydney, Camperdown, NSW 2008, Australia
- Sydney Nano Institute, The University of Sydney, Camperdown, NSW 2008, Australia
- Correspondence: (Y.R.); (G.S.)
| | - Gurvinder Singh
- School of Biomedical Engineering, The University of Sydney, Camperdown, NSW 2008, Australia
- Sydney Nano Institute, The University of Sydney, Camperdown, NSW 2008, Australia
- Correspondence: (Y.R.); (G.S.)
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6
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Enteric coating of drug loaded aerogel particles in a wurster fluidized bed and its effect on release behaviour. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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7
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Bhuyan C, Konwar A, Bora P, Rajguru P, Hazarika S. Cellulose nanofiber-poly(ethylene terephthalate) nanocomposite membrane from waste materials for treatment of petroleum industry wastewater. JOURNAL OF HAZARDOUS MATERIALS 2023; 442:129955. [PMID: 36179628 DOI: 10.1016/j.jhazmat.2022.129955] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 08/28/2022] [Accepted: 09/06/2022] [Indexed: 06/16/2023]
Abstract
Petroleum industry wastewater contains high level of crude oil and other types of organic substances that can cause immense harm to the agriculture, aquatic as well as terrestrial organisms. Organic solvent resistance of membranes is very important to treat such wastewater that contains high level of organic pollutants. This work reports the designing of a superhydrophilic and organic solvent resistant nanocomposite membrane using waste bottles made of poly(ethylene terephthalate) (PET) and cellulosic papers. Using in-situ synthesized cellulose nanofibers we could successfully fabricate porous membranes which is not possible for bare PET matrix using water as nonsolvent. Thus, we could successfully replace methanol which was used as a suitable non-solvent in earlier reports by distilled water. We successfully used the membrane for separation of synthetic crude oil-water emulsion. The membrane showed permeability up to 98 Lm-2h-1 applying pressure of 1.5 bar. The membrane also achieved removal of more than 97 % of organic substances from a crude oil-water emulsion system. The optimum membrane also showed good thermal stability with initial degradation temperature ∼350 °C and tensile strength of 0.86 MPa. The antimicrobial property of the nanocomposite membranes could be achieved by coating its surface with carbon dots rooted graphene oxide.
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Affiliation(s)
- Chinmoy Bhuyan
- Chemical Engineering Group and Center for Petroleum Research, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Achyut Konwar
- Chemical Engineering Group and Center for Petroleum Research, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India
| | - Prarthana Bora
- Chemical Engineering Group and Center for Petroleum Research, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Parashmoni Rajguru
- Chemical Engineering Group and Center for Petroleum Research, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Swapnali Hazarika
- Chemical Engineering Group and Center for Petroleum Research, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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8
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Barim SB, Raptapoulos G, Rommel S, Aindow M, Paraskevopoulou P, Erkey C. Polyamide Aerogel-Derived N-Doped Carbon Aerogel Decorated with Platinum Nanoparticles as Highly Active and Stable Electrocatalysts for Oxygen Reduction Reaction. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Wang Q, Liu S, Liu J, Sun J, Zhang Z, Zhu Q. Sustainable cellulose nanomaterials for environmental remediation - Achieving clean air, water, and energy: A review. Carbohydr Polym 2022; 285:119251. [DOI: 10.1016/j.carbpol.2022.119251] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/09/2022] [Accepted: 02/09/2022] [Indexed: 01/09/2023]
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10
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Akgün IS, Demir E, Işık M, Ekmekçiyan N, Şenses E, Erkey C. Protective coating of highly porous alginate aerogel particles in a Wurster fluidized bed. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117331] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Li Y, Zhang L, Li F, Wang K, Wu X, Liu H, Long B, Zhao Y, Xie D, Chen J. Fabrication and the barrier characterization of the cellulose nanofibers/organic montmorillonite/poly lactic acid nanocomposites. J Appl Polym Sci 2022. [DOI: 10.1002/app.51827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yuan Li
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Biological and Medical Engineering Guangdong Academy of Sciences Guangzhou Guangdong China
| | - Lu Zhang
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Biological and Medical Engineering Guangdong Academy of Sciences Guangzhou Guangdong China
| | - Fayong Li
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Biological and Medical Engineering Guangdong Academy of Sciences Guangzhou Guangdong China
| | - Ke Wang
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Biological and Medical Engineering Guangdong Academy of Sciences Guangzhou Guangdong China
| | - Xiaoru Wu
- Department of Material Chemistry South China Normal University Guangzhou Guangdong China
| | - Hailu Liu
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Biological and Medical Engineering Guangdong Academy of Sciences Guangzhou Guangdong China
| | - Bibo Long
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Biological and Medical Engineering Guangdong Academy of Sciences Guangzhou Guangdong China
| | - Yang Zhao
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Biological and Medical Engineering Guangdong Academy of Sciences Guangzhou Guangdong China
| | - Dong Xie
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Biological and Medical Engineering Guangdong Academy of Sciences Guangzhou Guangdong China
| | - Junjia Chen
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Biological and Medical Engineering Guangdong Academy of Sciences Guangzhou Guangdong China
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12
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Guccini V, Phiri J, Trifol J, Rissanen V, Mousavi SM, Vapaavuori J, Tammelin T, Maloney T, Kontturi E. Tuning the Porosity, Water Interaction, and Redispersion of Nanocellulose Hydrogels by Osmotic Dehydration. ACS APPLIED POLYMER MATERIALS 2022; 4:24-28. [PMID: 35072077 PMCID: PMC8765005 DOI: 10.1021/acsapm.1c01430] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 12/16/2021] [Indexed: 05/28/2023]
Abstract
Osmotic dehydration (OD) was introduced as a method to reproducibly tune the water content and porosity of cellulose nanofiber (CNF) hydrogels. The hierarchical porosity was followed by electron microscopy (pores with a >100 μm diameter) and thermoporosimetry (mesopores), together with mechanical testing, in hydrogels with solid contents ranging from 0.7 to 12 wt %. Furthermore, a reciprocal correlation between proton conductivity and the ratio of water bound to the nanocellulose network was established, suggesting the potential of these systems toward tunable energy materials.
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Affiliation(s)
- Valentina Guccini
- Department
of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, 00076 Espoo, Finland
| | - Josphat Phiri
- Department
of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, 00076 Espoo, Finland
| | - Jon Trifol
- Department
of Chemical and Metallurgical Engineering, School of Chemical Engineering, Aalto University, Kemistintie 1, 02150 Espoo, Finland
| | - Ville Rissanen
- VTT
Technical Research Centre of Finland Ltd, VTT, PO Box 1000, FI-02044 Espoo, Finland
| | - Seyede Maryam Mousavi
- Department
of Chemistry and Materials Science, Aalto
University, Kemistintie
1, 02150 Espoo, Finland
| | - Jaana Vapaavuori
- Department
of Chemistry and Materials Science, Aalto
University, Kemistintie
1, 02150 Espoo, Finland
| | - Tekla Tammelin
- VTT
Technical Research Centre of Finland Ltd, VTT, PO Box 1000, FI-02044 Espoo, Finland
| | - Thaddeus Maloney
- Department
of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, 00076 Espoo, Finland
| | - Eero Kontturi
- Department
of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, 00076 Espoo, Finland
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13
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Ajdary R, Tardy BL, Mattos BD, Bai L, Rojas OJ. Plant Nanomaterials and Inspiration from Nature: Water Interactions and Hierarchically Structured Hydrogels. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2001085. [PMID: 32537860 DOI: 10.1002/adma.202001085] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 03/08/2020] [Accepted: 03/20/2020] [Indexed: 05/26/2023]
Abstract
Recent developments in the area of plant-based hydrogels are introduced, especially those derived from wood as a widely available, multiscale, and hierarchical source of nanomaterials, as well as other cell wall elements. With water being fundamental in a hydrogel, water interactions, hydration, and swelling, all critically important in designing, processing, and achieving the desired properties of sustainable and functional hydrogels, are highlighted. A plant, by itself, is a form of a hydrogel, at least at given states of development, and for this reason phenomena such as fluid transport, diffusion, capillarity, and ionic effects are examined. These aspects are highly relevant not only to plants, especially lignified tissues, but also to the porous structures produced after removal of water (foams, sponges, cryogels, xerogels, and aerogels). Thus, a useful source of critical and comprehensive information is provided regarding the synthesis of hydrogels from plant materials (and especially wood nanostructures), and about the role of water, not only for processing but for developing hydrogel properties and uses.
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Affiliation(s)
- Rubina Ajdary
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, Aalto, Espoo, FIN-00076, Finland
| | - Blaise L Tardy
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, Aalto, Espoo, FIN-00076, Finland
| | - Bruno D Mattos
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, Aalto, Espoo, FIN-00076, Finland
| | - Long Bai
- Departments of Chemical & Biological Engineering, Chemistry and, Wood Science, The University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, Aalto, Espoo, FIN-00076, Finland
- Departments of Chemical & Biological Engineering, Chemistry and, Wood Science, The University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
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14
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Kim H, Mattinen U, Guccini V, Liu H, Salazar-Alvarez G, Lindström RW, Lindbergh G, Cornell A. Feasibility of Chemically Modified Cellulose Nanofiber Membranes as Lithium-Ion Battery Separators. ACS APPLIED MATERIALS & INTERFACES 2020; 12:41211-41222. [PMID: 32812731 DOI: 10.1021/acsami.0c08820] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Chemical modification of cellulose is beneficial to produce highly porous lithium-ion battery (LIB) separators, but introduction of high charge density adversely affects its electrochemical stability in a LiNi1/3Mn1/3Co1/3O2 (NMC)/graphite full cell. In this study, the influence of carboxylate functional groups in 2,2,6,6-tetramethylpiperidine-1-oxyl-mediated oxidized cellulose nanofibers (TOCNs) on the electrochemical performances of the LIB separator was investigated. X-ray photoelectron spectroscopy and in operando mass spectrometry measurements were used to elucidate the cause of failure of the batteries containing TOCN separators in the presence and absence of sodium counterions in the carboxylate groups and additives. For the TOCN separator with sodium carboxylate functional groups, it seems that Na deposition is the dominant reason for poor electrochemical stability of the cell thereof. The poor performance of the protonated TOCN separator, attributed to a high amount of gas evolution, is dramatically improved by adding 2 wt % of vinylene carbonate (VC) because of suppressed gas evolution. Unveiling the failure mechanism of the TOCN separators and successively implementing the strategies to improve performance, for example, removing Na, adding VC, and adjusting cycling rates, enable a remarkable cycling performance in the NMC/graphite full cell at ≈2 C (3 mA/cm2) of a fast discharging rate. Despite the aforementioned efforts and compromises required, an increased charge density of the TOCN is beneficial to acquire a mechanically stronger separator. In conclusion, the manufacturing process of cellulose nanofibers needs to be carefully adjusted to acquire a desired separator property. To the best of our knowledge, it is first reported to perform operando gas evolution measurements to systematically investigate the electrochemical stability of nanocellulose as an LIB separator material. The results elucidate not only the challenges for extensive applications of hygroscopic biomaterials for commercial LIBs but also the practical solutions to achieve high electrochemical stability of the materials.
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Affiliation(s)
- Hyeyun Kim
- Wallenberg Wood Science Centre, Royal Institute of Technology, KTH Royal Institute of Technology, Teknikringen 56-58, Stockholm SE-100 44, Sweden
- Department of Chemical Engineering, KTH Royal Institute of Technology, Teknikringen 42, Stockholm SE-100 44, Sweden
| | - Ulriika Mattinen
- Department of Chemical Engineering, KTH Royal Institute of Technology, Teknikringen 42, Stockholm SE-100 44, Sweden
| | - Valentina Guccini
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, Aalto 00076, Finland
| | - Haidong Liu
- Department of Chemistry-Ångström Laboratory, Uppsala University, Lägerhyddsvägen 1, Uppsala SE-751 21, Sweden
| | - Germán Salazar-Alvarez
- Department of Materials Science and Engineering-Ångström Laboratory, Uppsala University, Lägerhyddsvägen 1, Uppsala SE-751 21, Sweden
| | - Rakel Wreland Lindström
- Department of Chemical Engineering, KTH Royal Institute of Technology, Teknikringen 42, Stockholm SE-100 44, Sweden
| | - Göran Lindbergh
- Department of Chemical Engineering, KTH Royal Institute of Technology, Teknikringen 42, Stockholm SE-100 44, Sweden
| | - Ann Cornell
- Department of Chemical Engineering, KTH Royal Institute of Technology, Teknikringen 42, Stockholm SE-100 44, Sweden
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15
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Nopens M, Sazama U, König S, Kaschuro S, Krause A, Fröba M. Determination of mesopores in the wood cell wall at dry and wet state. Sci Rep 2020; 10:9543. [PMID: 32533033 PMCID: PMC7293252 DOI: 10.1038/s41598-020-65066-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 04/27/2020] [Indexed: 11/21/2022] Open
Abstract
Wood porosity is of great interest for basic research and applications. One aspect is the cell wall porosity at total dry state. When water is absorbed by wood, the uptake of water within the cell wall leads to a dimension change of the material. A hypothesis for possible structures that hold the water is induced cell wall porosity. Nitrogen and krypton physisorption as well as high pressure hydrogen sorption and thermoporosimetry were applied to softwood and hardwood (pine and beech) in dry and wet state for determining surface area and porosity. Physisorption is not able to detect pores or surface area within the cell wall. Krypton physisorption shows surface area up 5 times lower than nitrogen with higher accuracy. With high pressure sorption no inaccessible pore volumes were seen at higher pressures. Thermoporosimetry was not able to detect mesopores within the hygroscopic water sorption region. Physisorption has to be handled carefully regarding the differences between adsorptives. The absence of water-induced mesopores within the hygroscopic region raise doubts on existing water sorption theories that assume these pore dimensions. When using the term “cell wall porosity”, it is important to distinguish between pores on the cell wall surface and pores that exist because of biological structure, as there are no water-induced mesopores present. The finding offers the possibility to renew wood-water-sorption theories because based on the presented results transport of water in the cell wall must be realized by structures lower than two 2 nm. Nanoporous structures in wood at wet state should be investigated more intensively in future.
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Affiliation(s)
- Martin Nopens
- Universität Hamburg, Department Biology, Institute of Wood Science, Wood Physics, Leuschnerstraße 91 c, 21031, Hamburg, Germany.
| | - Uta Sazama
- Universität Hamburg, Department Chemistry, Institute of Inorganic and Applied Chemistry, Martin-Luther-King-Platz 6, 20146, Hamburg, Germany
| | - Sandra König
- Universität Hamburg, Department Chemistry, Institute of Inorganic and Applied Chemistry, Martin-Luther-King-Platz 6, 20146, Hamburg, Germany
| | - Sergej Kaschuro
- Thünen Institute, Institute of Wood Research, Leuschnerstr 91, 21031, Hamburg, Germany
| | - Andreas Krause
- Universität Hamburg, Department Biology, Institute of Wood Science, Wood Physics, Leuschnerstraße 91 c, 21031, Hamburg, Germany.
| | - Michael Fröba
- Universität Hamburg, Department Chemistry, Institute of Inorganic and Applied Chemistry, Martin-Luther-King-Platz 6, 20146, Hamburg, Germany.
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16
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Michel B, Bras J, Dufresne A, Heggset EB, Syverud K. Production and Mechanical Characterisation of TEMPO-Oxidised Cellulose Nanofibrils/β-Cyclodextrin Films and Cryogels. Molecules 2020; 25:E2381. [PMID: 32443918 PMCID: PMC7288142 DOI: 10.3390/molecules25102381] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/15/2020] [Accepted: 05/18/2020] [Indexed: 12/16/2022] Open
Abstract
Wood-based TEMPO-oxidised cellulose nanofibrils (toCNF) are promising materials for biomedical applications. Cyclodextrins have ability to form inclusion complexes with hydrophobic molecules and are considered as a method to bring new functionalities to these materials. Water sorption and mechanical properties are also key properties for biomedical applications such as drug delivery and tissue engineering. In this work, we report the modification with β-cyclodextrin (βCD) of toCNF samples with different carboxyl contents viz. 756 ± 4 µmol/g and 1048 ± 32 µmol/g. The modification was carried out at neutral and acidic pH (2.5) to study the effect of dissociation of the carboxylic acid group. Films processed by casting/evaporation at 40 °C and cryogels processed by freeze-drying were prepared from βCD modified toCNF suspensions and compared with reference samples of unmodified toCNF. The impact of modification on water sorption and mechanical properties was assessed. It was shown that the water sorption behaviour for films is driven by adsorption, with a clear impact of the chemical makeup of the fibres (charge content, pH, and adsorption of cyclodextrin). Modified toCNF cryogels (acidic pH and addition of cyclodextrins) displayed lower mechanical properties linked to the modification of the cell wall porosity structure. Esterification between βCD and toCNF under acidic conditions was performed by freeze-drying, and such cryogels exhibited a lower decrease in mechanical properties in the swollen state. These results are promising for the development of scaffold and films with controlled mechanical properties and added value due to the ability of cyclodextrin to form an inclusion complex with active principle ingredient (API) or growth factor (GF) for biomedical applications.
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Affiliation(s)
- Bastien Michel
- Univeristy Grenoble Alpes, CNRS, Grenoble INP*, LGP2, 38000 Grenoble, France; (B.M.); (J.B.); (A.D.)
| | - Julien Bras
- Univeristy Grenoble Alpes, CNRS, Grenoble INP*, LGP2, 38000 Grenoble, France; (B.M.); (J.B.); (A.D.)
| | - Alain Dufresne
- Univeristy Grenoble Alpes, CNRS, Grenoble INP*, LGP2, 38000 Grenoble, France; (B.M.); (J.B.); (A.D.)
| | | | - Kristin Syverud
- RISE PFI, NO-7491 Trondheim, Norway;
- Departments of Chemical Engineering, NTNU, 7491 Trondheim, Norway
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17
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Karim Z, Svedberg A. Controlled retention and drainage of microfibrillated cellulose in continuous paper production. NEW J CHEM 2020. [DOI: 10.1039/d0nj02964e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In the current study, an attempt has been made to scale up microfibrillated cellulose (MFC) reinforced paper using a pilot scale experimental paper machine (XPM) in continuous mode.
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Affiliation(s)
- Zoheb Karim
- MoRe Research Örnsköldsvik AB
- Örnsköldsvik
- Sweden
- Institute of Architecture and Civil Engineering
- South Ural State University
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18
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Plappert SF, Liebner FW, Konnerth J, Nedelec JM. Anisotropic nanocellulose gel–membranes for drug delivery: Tailoring structure and interface by sequential periodate–chlorite oxidation. Carbohydr Polym 2019; 226:115306. [DOI: 10.1016/j.carbpol.2019.115306] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 08/31/2019] [Accepted: 09/07/2019] [Indexed: 12/12/2022]
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19
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Liu H, Jian R, Chen H, Tian X, Sun C, Zhu J, Yang Z, Sun J, Wang C. Application of Biodegradable and Biocompatible Nanocomposites in Electronics: Current Status and Future Directions. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E950. [PMID: 31261962 PMCID: PMC6669760 DOI: 10.3390/nano9070950] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/19/2019] [Accepted: 06/24/2019] [Indexed: 02/07/2023]
Abstract
With the continuous increase in the production of electronic devices, large amounts of electronic waste (E-waste) are routinely being discarded into the environment. This causes serious environmental and ecological problems because of the non-degradable polymers, released hazardous chemicals, and toxic heavy metals. The appearance of biodegradable polymers, which can be degraded or dissolved into the surrounding environment with no pollution, is promising for effectively relieving the environmental burden. Additionally, biodegradable polymers are usually biocompatible, which enables electronics to be used in implantable biomedical applications. However, for some specific application requirements, such as flexibility, electric conductivity, dielectric property, gas and water vapor barrier, most biodegradable polymers are inadequate. Recent research has focused on the preparation of nanocomposites by incorporating nanofillers into biopolymers, so as to endow them with functional characteristics, while simultaneously maintaining effective biodegradability and biocompatibility. As such, bionanocomposites have broad application prospects in electronic devices. In this paper, emergent biodegradable and biocompatible polymers used as insulators or (semi)conductors are first reviewed, followed by biodegradable and biocompatible nanocomposites applied in electronics as substrates, (semi)conductors and dielectrics, as well as electronic packaging, which is highlighted with specific examples. To finish, future directions of the biodegradable and biocompatible nanocomposites, as well as the challenges, that must be overcome are discussed.
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Affiliation(s)
- Haichao Liu
- Academic Division of Engineering, Qingdao University of Science & Technology, Qingdao 266061, China
| | - Ranran Jian
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hongbo Chen
- College of Electromechanical Engineering, Qingdao University of Science & Technology, Qingdao 266061, China
| | - Xiaolong Tian
- College of Electromechanical Engineering, Qingdao University of Science & Technology, Qingdao 266061, China
| | - Changlong Sun
- College of Sino-German Science and Technology, Qingdao University of Science & Technology, Qingdao 266061, China
| | - Jing Zhu
- College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
| | - Zhaogang Yang
- Department of Radiation Oncology, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
| | - Jingyao Sun
- Academic Division of Engineering, Qingdao University of Science & Technology, Qingdao 266061, China.
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Chuansheng Wang
- Academic Division of Engineering, Qingdao University of Science & Technology, Qingdao 266061, China.
- College of Electromechanical Engineering, Qingdao University of Science & Technology, Qingdao 266061, China.
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20
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Medina L, Nishiyama Y, Daicho K, Saito T, Yan M, Berglund LA. Nanostructure and Properties of Nacre-Inspired Clay/Cellulose Nanocomposites—Synchrotron X-ray Scattering Analysis. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00333] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Lilian Medina
- Department of Fiber and Polymer Technology, Wallenberg Wood Science Center, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | | | - Kazuho Daicho
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Tsuguyuki Saito
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Max Yan
- School of Engineering Sciences, KTH Royal Institute of Technology, 16440 Kista, Sweden
| | - Lars A. Berglund
- Department of Fiber and Polymer Technology, Wallenberg Wood Science Center, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
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21
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Onur A, Ng A, Garnier G, Batchelor W. Engineering cellulose fibre inorganic composites for depth filtration and adsorption. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.04.038] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Barhoum A, Samyn P, Öhlund T, Dufresne A. Review of recent research on flexible multifunctional nanopapers. NANOSCALE 2017; 9:15181-15205. [PMID: 28990609 DOI: 10.1039/c7nr04656a] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Traditional paper and papermaking have struggled with a declining market during the last few decades. However, the incorporation of nanotechnology into papermaking has brought possibilities to develop low-cost, biocompatible and flexible products with sophisticated functionalities. The functionality of nanopapers emerges from the intrinsic properties of the nanofibrous network, the additional loading of specific nanomaterials (NMs), or the additional deposition and patterning of thin films of nanomaterials on the paper surface. A successful development of functional nanopapers requires understanding how the nanopaper matrix, nanofillers, nanocoating pigments, nanoprinting inks, processing additives and manufacturing processes all interact to provide the intended functionality. This review addresses the emerging area of functional nanopapers. This review discusses flexible and multifunctional nanopapers, NMs being used in nanopaper making, manufacturing techniques, and functional applications that provide new important possibilities to utilize papermaking technology. The interface where NM research meets traditional papermaking has important implications for food packaging, energy harvesting and energy storage, flexible electronics, low-cost devices for medical diagnostics, and numerous other areas.
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Affiliation(s)
- Ahmed Barhoum
- Department of Materials and Chemistry (MACH), Vrije Universiteit Brussel (VUB), Brussels, Belgium.
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23
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Enhancing Insulating Performances of Presspaper by Introduction of Nanofibrillated Cellulose. ENERGIES 2017. [DOI: 10.3390/en10050681] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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24
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Fernandes SC, Walz JA, Wilson DJ, Brooks JC, Mace CR. Beyond Wicking: Expanding the Role of Patterned Paper as the Foundation for an Analytical Platform. Anal Chem 2017; 89:5654-5664. [PMID: 28406607 DOI: 10.1021/acs.analchem.6b03860] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
While a number of assays for soluble analytes have been developed using paper-based microfluidic devices, the detection and analysis of blood cells has remained an outstanding challenge. In this Feature, we discuss how the properties of paper determine the performance of paper-based microfluidic devices and permit the design of cellular assays, which can ultimately impact disparities in healthcare that exist in limited-resource settings.
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Affiliation(s)
- Syrena C Fernandes
- Department of Chemistry, Tufts University , 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Jenna A Walz
- Department of Chemistry, Tufts University , 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Daniel J Wilson
- Department of Chemistry, Tufts University , 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Jessica C Brooks
- Department of Chemistry, Tufts University , 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Charles R Mace
- Department of Chemistry, Tufts University , 62 Talbot Avenue, Medford, Massachusetts 02155, United States
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25
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Benítez AJ, Walther A. Counterion Size and Nature Control Structural and Mechanical Response in Cellulose Nanofibril Nanopapers. Biomacromolecules 2017; 18:1642-1653. [DOI: 10.1021/acs.biomac.7b00263] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alejandro J. Benítez
- Institute for Macromolecular
Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Straße 31, 79104 Freiburg, Germany
- Freiburg Materials
Research Center, Albert-Ludwigs-University Freiburg, Stefan-Meier-Straße 21, 79104 Freiburg, Germany
- Freiburg Center
for Interactive Materials and Bioinspired Technologies, Albert-Ludwigs-University Freiburg, Georges-Köhler-Allee 105, 79110 Freiburg, Germany
| | - Andreas Walther
- Institute for Macromolecular
Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Straße 31, 79104 Freiburg, Germany
- Freiburg Materials
Research Center, Albert-Ludwigs-University Freiburg, Stefan-Meier-Straße 21, 79104 Freiburg, Germany
- Freiburg Center
for Interactive Materials and Bioinspired Technologies, Albert-Ludwigs-University Freiburg, Georges-Köhler-Allee 105, 79110 Freiburg, Germany
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26
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Karim Z, Hakalahti M, Tammelin T, Mathew AP. In situ TEMPO surface functionalization of nanocellulose membranes for enhanced adsorption of metal ions from aqueous medium. RSC Adv 2017. [DOI: 10.1039/c6ra25707k] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The current work demonstrates an innovative approach to develop nanocellulose based membranes via in situ TEMPO functionalization of the thin functional layer of cellulose nanocrystals (CNCBE) to enhance the metal ion adsorption capacity.
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Affiliation(s)
- Zoheb Karim
- Division of Materials Science
- Luleå University of Technology
- Luleå
- Sweden
- Department of Civil, Environmental and Natural Resources Engineering
| | | | | | - Aji P. Mathew
- Division of Materials Science
- Luleå University of Technology
- Luleå
- Sweden
- Department of Materials and Environmental Chemistry
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27
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Orsolini P, Marchesi D'Alvise T, Boi C, Geiger T, Caseri WR, Zimmermann T. Nanofibrillated Cellulose Templated Membranes with High Permeance. ACS APPLIED MATERIALS & INTERFACES 2016; 8:33943-33954. [PMID: 27960366 DOI: 10.1021/acsami.6b12107] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
One of the most challenging aspects of using nanofibrillated cellulose (NFC) for membranes production is their limited permeance. When NFC membranes are produced from aqueous suspensions, depending on their grammage, the permeances are in the range of a few decades of L/(hm2MPa) not matching satisfactory filtration times. We present a fast and sustainable solution to increase the permeances of such membranes through a combination of solvent exchange of the NFC suspension with ethanol and the use of a removable template, a mixture of calcium compounds (CC). The effect of the CC/NFC ratio was screened for various concentrations. The permeance of water could be increased by as much as 2-3 times as compared to nontemplated membranes. Further, the membranes showed the ability for penetration of water-soluble macromolecules, contaminant rejection of suspended solid particles, and thus fluids (such as orange juice) could be concentrated, with a view to applications in food industry.
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Affiliation(s)
- Paola Orsolini
- Applied Wood Materials Laboratory, Empa - Swiss Federal Laboratories for Material Science and Technology , Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
- ETH Zürich, Multifunctional Materials , Vladimir-Prelog-Weg 5, 8093 Zürich, Switzerland
| | - Tommaso Marchesi D'Alvise
- Applied Wood Materials Laboratory, Empa - Swiss Federal Laboratories for Material Science and Technology , Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
- DICMA, Alma Mater Studiorum-Università di Bologna , via Terracini 28, 40131 Bologna, Italy
| | - Cristiana Boi
- DICMA, Alma Mater Studiorum-Università di Bologna , via Terracini 28, 40131 Bologna, Italy
| | - Thomas Geiger
- Applied Wood Materials Laboratory, Empa - Swiss Federal Laboratories for Material Science and Technology , Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Walter R Caseri
- ETH Zürich, Multifunctional Materials , Vladimir-Prelog-Weg 5, 8093 Zürich, Switzerland
| | - Tanja Zimmermann
- Applied Wood Materials Laboratory, Empa - Swiss Federal Laboratories for Material Science and Technology , Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
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