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Mikhailidi A, Ungureanu E, Belosinschi D, Tofanica BM, Volf I. Cellulose-Based Metallogels-Part 3: Multifunctional Materials. Gels 2023; 9:878. [PMID: 37998968 PMCID: PMC10671087 DOI: 10.3390/gels9110878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/24/2023] [Accepted: 11/02/2023] [Indexed: 11/25/2023] Open
Abstract
The incorporation of the metal phase into cellulose hydrogels, resulting in the formation of metallogels, greatly expands their application potential by introducing new functionalities and improving their performance in various fields. The unique antiviral, antibacterial, antifungal, and anticancer properties of metal and metal oxide nanoparticles (Ag, Au, Cu, CuxOy, ZnO, Al2O3, TiO2, etc.), coupled with the biocompatibility of cellulose, allow the development of composite hydrogels with multifunctional therapeutic potential. These materials can serve as efficient carriers for controlled drug delivery, targeting specific cells or pathogens, as well as for the design of artificial tissues or wound and burn dressings. Cellulose-based metallogels can be used in the food packaging industry to provide biodegradable and biocidal materials to extend the shelf life of the goods. Metal and bimetallic nanoparticles (Au, Cu, Ni, AuAg, and AuPt) can catalyze chemical reactions, enabling composite cellulose hydrogels to be used as efficient catalysts in organic synthesis. In addition, metal-loaded hydrogels (with ZnO, TiO2, Ag, and Fe3O4 nanoparticles) can exhibit enhanced adsorption capacities for pollutants, such as dyes, heavy metal ions, and pharmaceuticals, making them valuable materials for water purification and environmental remediation. Magnetic properties imparted to metallogels by iron oxides (Fe2O3 and Fe3O4) simplify the wastewater treatment process, making it more cost-effective and environmentally friendly. The conductivity of metallogels due to Ag, TiO2, ZnO, and Al2O3 is useful for the design of various sensors. The integration of metal nanoparticles also allows the development of responsive materials, where changes in metal properties can be exploited for stimuli-responsive applications, such as controlled release systems. Overall, the introduction of metal phases augments the functionality of cellulose hydrogels, expanding their versatility for diverse applications across a broad spectrum of industries not envisaged during the initial research stages.
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Affiliation(s)
- Aleksandra Mikhailidi
- Higher School of Printing and Media Technologies, St. Petersburg State University of Industrial Technologies and Design, 18 Bolshaya Morskaya Street, 191186 St. Petersburg, Russia;
| | - Elena Ungureanu
- “Ion Ionescu de la Brad” University of Life Sciences Iasi, 3 Mihail Sadoveanu Alley, 700490 Iasi, Romania;
| | - Dan Belosinschi
- Innovations Institute in Ecomaterials, Ecoproducts, and Ecoenergies, University of Quebec at Trois-Rivières, 3351, Boul. des Forges, Trois-Rivières, QC G8Z 4M3, Canada;
- CellON AS, Lakkegata 75C, NO-0562 Oslo, Norway
| | - Bogdan-Marian Tofanica
- “Gheorghe Asachi” Technical University of Iasi, 73 Prof. Dr. Docent D. Mangeron Boulevard, 700050 Iasi, Romania
- IF2000 Academic Foundation, 73 Prof. Dr. Docent D. Mangeron Boulevard, 700050 Iasi, Romania
| | - Irina Volf
- “Gheorghe Asachi” Technical University of Iasi, 73 Prof. Dr. Docent D. Mangeron Boulevard, 700050 Iasi, Romania
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2
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Ahmad H, Anguilano L, Fan M. Microstructural architecture and mechanical properties of empowered cellulose-based aerogel composites via TEMPO-free oxidation. Carbohydr Polym 2022; 298:120117. [DOI: 10.1016/j.carbpol.2022.120117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 09/10/2022] [Accepted: 09/12/2022] [Indexed: 12/01/2022]
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3
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Anžlovar A, Žagar E. Cellulose Structures as a Support or Template for Inorganic Nanostructures and Their Assemblies. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1837. [PMID: 35683693 PMCID: PMC9182054 DOI: 10.3390/nano12111837] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 11/17/2022]
Abstract
Cellulose is the most abundant natural polymer and deserves the special attention of the scientific community because it represents a sustainable source of carbon and plays an important role as a sustainable energent for replacing crude oil, coal, and natural gas in the future. Intense research and studies over the past few decades on cellulose structures have mainly focused on cellulose as a biomass for exploitation as an alternative energent or as a reinforcing material in polymer matrices. However, studies on cellulose structures have revealed more diverse potential applications by exploiting the functionalities of cellulose such as biomedical materials, biomimetic optical materials, bio-inspired mechanically adaptive materials, selective nanostructured membranes, and as a growth template for inorganic nanostructures. This article comprehensively reviews the potential of cellulose structures as a support, biotemplate, and growing vector in the formation of various complex hybrid hierarchical inorganic nanostructures with a wide scope of applications. We focus on the preparation of inorganic nanostructures by exploiting the unique properties and performances of cellulose structures. The advantages, physicochemical properties, and chemical modifications of the cellulose structures are comparatively discussed from the aspect of materials development and processing. Finally, the perspective and potential applications of cellulose-based bioinspired hierarchical functional nanomaterials in the future are outlined.
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Affiliation(s)
- Alojz Anžlovar
- National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia;
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4
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Shah N, Rehan T, Li X, Tetik H, Yang G, Zhao K, Lin D. Magnetic aerogel: an advanced material of high importance. RSC Adv 2021; 11:7187-7204. [PMID: 35423256 PMCID: PMC8695117 DOI: 10.1039/d0ra10275j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 01/12/2021] [Indexed: 12/27/2022] Open
Abstract
Magnetic materials have brought innovations in the field of advanced materials. Their incorporation in aerogels has certainly broadened their application area. Magnetic aerogels can be used for various purposes from adsorbents to developing electromagnetic interference shielding and microwave absorbing materials, high-level diagnostic tools, therapeutic systems, and so on. Considering the final use and cost, these can be fabricated from a variety of materials using different approaches. To date, several studies have been published reporting the fabrication and uses of magnetic aerogels. However, to our knowledge, there is no review that specifically focuses only on magnetic aerogels, so we attempted to overview the main developments in this field and ended our study with the conclusion that magnetic aerogels are one of the emerging and futuristic advanced materials with the potential to offer multiple applications of high value.
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Affiliation(s)
- Nasrullah Shah
- Department of Industrial and Manufacturing Systems Engineering, Kansas State University Manhattan KS 66506 USA +1-765-2372200 +1-785-4911492
- Department of Chemistry, Abdul Wali Khan University Mardan Mardan KP 23200 Pakistan
| | - Touseef Rehan
- Department of Biochemistry, Quaid-i-Azam University Islamabad 24000 Pakistan
| | - Xuemue Li
- Department of Industrial and Manufacturing Systems Engineering, Kansas State University Manhattan KS 66506 USA +1-765-2372200 +1-785-4911492
- Key Laboratory of High Efficiency and Clean Mechanical Engineering, Shandong University Jinan 250061 China
| | - Halil Tetik
- Department of Industrial and Manufacturing Systems Engineering, Kansas State University Manhattan KS 66506 USA +1-765-2372200 +1-785-4911492
| | - Guang Yang
- Department of Industrial and Manufacturing Systems Engineering, Kansas State University Manhattan KS 66506 USA +1-765-2372200 +1-785-4911492
| | - Keren Zhao
- Department of Industrial and Manufacturing Systems Engineering, Kansas State University Manhattan KS 66506 USA +1-765-2372200 +1-785-4911492
| | - Dong Lin
- Department of Industrial and Manufacturing Systems Engineering, Kansas State University Manhattan KS 66506 USA +1-765-2372200 +1-785-4911492
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5
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Ji R, Shao Z, Li Z, Wang J, An L, Guo Z, Zhou C, Ren S. Magnetically hard ferrite nanoparticles synthesized through aerogel nanoreactor. NANOTECHNOLOGY 2020; 31:465606. [PMID: 32877374 DOI: 10.1088/1361-6528/abaf21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Magnetic ferrite materials have been extensively studied for a range of technological applications, such as magnetic motors, recording media, and millimetre-wave devices. In this context, the nanosized epsilon phase of Fe2O3 (ϵ-Fe2O3) attracts significant attention due to its high coercive field at room temperature. Here, we report the in-situ aerogel nanoreactor growth of magnetic ϵ-Fe2O3 nanoparticles, exhibiting a coercive field (Hc) of 4000 Oe. We show that the control of nanoreactor plays an important role in the growth of ϵ-Fe2O3 nanoparticles. The findings provide a versatile reaction pathway for the growth of magnetically hard ferrite nanoparticles.
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Affiliation(s)
- Rui Ji
- Department of Mechanical and Aerospace Engineering, University at Buffalo, The State University of New York, Buffalo, United States of America
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6
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Loading of Iron (II, III) Oxide Nanoparticles in Cryogels Based on Microfibrillar Cellulose for Heavy Metal Ion Separation. ADVANCES IN POLYMER TECHNOLOGY 2020. [DOI: 10.1155/2020/9261378] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Cryogels based on microfibrillar cellulose (MFC) and reinforced with chitosan to endow water resistance were loaded with magnetite nanoparticles (MNPs) and characterized by TEM, XRD, and TGA. The MNP-loaded cryogels were tested for heavy metal ion removal from aqueous matrices. The adsorption capacity under equilibrium conditions for Cr(VI), Pd(II), Cd(II), and Zn(II) was measured to be 2755, 2155, 3015, and 4100 mg/g, respectively. The results indicate the potential of the introduced bicomponent cryogels for nanoparticle loading, leading to a remarkably high metal ion sorption capacity.
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7
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Udangawa RN, Mikael PE, Mancinelli C, Chapman C, Willard CF, Simmons TJ, Linhardt RJ. Novel Cellulose-Halloysite Hemostatic Nanocomposite Fibers with a Dramatic Reduction in Human Plasma Coagulation Time. ACS APPLIED MATERIALS & INTERFACES 2019; 11:15447-15456. [PMID: 30977359 DOI: 10.1021/acsami.9b04615] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
High-performance cellulose-halloysite hemostatic nanocomposite fibers (CHNFs) are fabricated using a one-step wet-wet electrospinning process and evaluated for human plasma coagulation by activated partial thromboplastin time. These novel biocompatible CHNFs exhibit 2.4 times faster plasma coagulation time compared with the industry gold standard QuikClot Combat Gauze (QCG). The CHNFs have superior antileaching property of clay with 3 times higher post-wetting clotting activity compared to QCG. The CHNFs also coagulate whole blood 1.3 times faster than the QCG and retain twice the clotting performance after washing. Halloysite clay is also more effective in plasma coagulation than commercial kaolin clay. The physical and thermal properties of the CHNFs were evaluated using scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, Brunauer-Emmett-Teller surface area analysis, and thermogravimetric analysis. CHNFs show a 7-fold greater clay loading than QCG and their small average diameter of 450 ± 260 nm affords a greater specific surface area (33.6 m2 g-1) compared with the larger average diameter of 12.6 ± 0.9 μm for QCG with a specific surface area of 1.6 m2 g-1. The CHNFs were shown to be noncytotoxic and human primary fibroblasts proliferated on the composite material. The drastic reduction in coagulation time makes this novel nanocomposite a potential lifesaving material for victims of rapid blood loss such as military personnel and patients undergoing major surgical procedures or to aid in the treatment of unexpected bleeding episodes of patients suffering from hereditary blood clotting disorders. Since a person can die within minutes of heavy bleeding, every second counts for stopping traumatic hemorrhaging.
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Fabrication of metal-organic frameworks@cellulose aerogels composite materials for removal of heavy metal ions in water. Carbohydr Polym 2019; 205:35-41. [DOI: 10.1016/j.carbpol.2018.10.029] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 09/17/2018] [Accepted: 10/10/2018] [Indexed: 11/17/2022]
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9
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Ketola AE, Leppänen M, Turpeinen T, Papponen P, Strand A, Sundberg A, Arstila K, Retulainen E. Cellulose nanofibrils prepared by gentle drying methods reveal the limits of helium ion microscopy imaging. RSC Adv 2019; 9:15668-15677. [PMID: 35514833 PMCID: PMC9064282 DOI: 10.1039/c9ra01447k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 05/13/2019] [Indexed: 11/21/2022] Open
Abstract
TEMPO-oxidized cellulose nanofibrils (TCNFs) have unique properties, which can be utilised in many application fields from printed electronics to packaging. Visual characterisation of TCNFs has been commonly performed using Scanning Electron Microscopy (SEM). However, a novel imaging technique, Helium Ion Microscopy (HIM), offers benefits over SEM, including higher resolution and the possibility of imaging non-conductive samples uncoated. HIM has not been widely utilized so far, and in this study the capability of HIM for imaging of TCNFs was evaluated. Freeze drying and critical point drying (CPD) techniques were applied to preserve the open fibril structure of the gel-like TCNFs. Both drying methods worked well, but CPD performed better resulting in the specific surface area of 386 m2 g−1 when compared to 172 m2 g−1 and 42 m2 g−1 of freeze dried samples frozen in propane and nitrogen, respectively. HIM imaging of TCNFs was successful but high magnification imaging was challenging because the ion beam tended to degrade the TCNFs. The effect of the imaging parameters on the degradation was studied and an ion dose as low as 0.9 ion per nm2 was required to prevent the damage. This study points out the differences between the gentle drying methods of TCNFs and demonstrates beam damage during imaging like none previously reported with HIM. The results can be utilized in future studies of cellulose or other biological materials as there is a growing interest for both the HIM technique and bio-based materials. TEMPO-oxidized cellulose nanofibrils (TCNFs) have unique properties, which can be utilised in many application fields from printed electronics to packaging.![]()
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Affiliation(s)
- Annika E. Ketola
- VTT Technical Research Centre of Finland Ltd
- FI-40101 Jyväskylä
- Finland
| | - Miika Leppänen
- University of Jyväskylä
- Nanoscience Centre
- Department of Physics and Department of Biological and Environmental Science
- FI-40014 Jyväskylä
- Finland
| | - Tuomas Turpeinen
- VTT Technical Research Centre of Finland Ltd
- FI-40101 Jyväskylä
- Finland
| | - Petri Papponen
- University of Jyväskylä
- Nanoscience Centre
- Department of Physics and Department of Biological and Environmental Science
- FI-40014 Jyväskylä
- Finland
| | - Anders Strand
- Åbo Akademi University
- Johan Gadolin Process Chemistry Centre
- FI-20500 Åbo/Turku
- Finland
| | - Anna Sundberg
- Åbo Akademi University
- Johan Gadolin Process Chemistry Centre
- FI-20500 Åbo/Turku
- Finland
| | - Kai Arstila
- University of Jyväskylä
- Nanoscience Centre
- Department of Physics and Department of Biological and Environmental Science
- FI-40014 Jyväskylä
- Finland
| | - Elias Retulainen
- VTT Technical Research Centre of Finland Ltd
- FI-40101 Jyväskylä
- Finland
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10
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Lee Y, Lee S, Jin CM, Kwon JA, Kang T, Choi I. Facile Fabrication of Large-Scale Porous and Flexible Three-Dimensional Plasmonic Networks. ACS APPLIED MATERIALS & INTERFACES 2018; 10:28242-28249. [PMID: 30052422 DOI: 10.1021/acsami.8b11055] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Assembling metallic nanoparticles and trapping target molecules within the probe volume of the incident light are important in plasmonic detection. Porous solid structures with three-dimensionally integrated metal nanoparticles would be very beneficial in achieving these objectives. Currently, porous inorganic oxides are being prepared under stringent conditions and further subjected to either physical or chemical attachment of metal nanoparticles. In this study, we propose a facile method to fabricate large-scale porous and flexible three-dimensional (3D) plasmonic networks. Initially, uncured polydimethylsiloxane (PDMS), in which metal ions are dissolved, diffuses spontaneously into the simple sugar crystal template via capillary action. As PDMS is cured, metal ions are automatically reduced to form a dense array of metal nanoparticles. After curing, the sugar template is easily removed by water treatment to obtain porous 3D plasmonic networks. We controlled the far-field scattering and near-field enhancement of the network by changing either the metal ion precursor or its concentration. To demonstrate the key advantages of our 3D plasmonic networks, such as simple fabrication, optical signal enhancement, and molecular trapping, we conducted sensitive Raman detection of several important molecules, including adenine, humidifier disinfectants, and volatile organic compounds.
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Affiliation(s)
- Yunjeong Lee
- Department of Life Science , University of Seoul , Seoul 130-743 , Republic of Korea
| | - Seungki Lee
- Department of Life Science , University of Seoul , Seoul 130-743 , Republic of Korea
| | - Chang Min Jin
- Department of Life Science , University of Seoul , Seoul 130-743 , Republic of Korea
| | - Jung A Kwon
- Department of Life Science , University of Seoul , Seoul 130-743 , Republic of Korea
| | - Taewook Kang
- Department of Chemical and Biomolecular Engineering , Sogang University , Seoul 121-742 , Republic of Korea
| | - Inhee Choi
- Department of Life Science , University of Seoul , Seoul 130-743 , Republic of Korea
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11
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Kontturi E, Laaksonen P, Linder MB, Gröschel AH, Rojas OJ, Ikkala O. Advanced Materials through Assembly of Nanocelluloses. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1703779. [PMID: 29504161 DOI: 10.1002/adma.201703779] [Citation(s) in RCA: 325] [Impact Index Per Article: 54.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 09/06/2017] [Indexed: 05/20/2023]
Abstract
There is an emerging quest for lightweight materials with excellent mechanical properties and economic production, while still being sustainable and functionalizable. They could form the basis of the future bioeconomy for energy and material efficiency. Cellulose has long been recognized as an abundant polymer. Modified celluloses were, in fact, among the first polymers used in technical applications; however, they were later replaced by petroleum-based synthetic polymers. Currently, there is a resurgence of interest to utilize renewable resources, where cellulose is foreseen to make again a major impact, this time in the development of advanced materials. This is because of its availability and properties, as well as economic and sustainable production. Among cellulose-based structures, cellulose nanofibrils and nanocrystals display nanoscale lateral dimensions and lengths ranging from nanometers to micrometers. Their excellent mechanical properties are, in part, due to their crystalline assembly via hydrogen bonds. Owing to their abundant surface hydroxyl groups, they can be easily modified with nanoparticles, (bio)polymers, inorganics, or nanocarbons to form functional fibers, films, bulk matter, and porous aerogels and foams. Here, some of the recent progress in the development of advanced materials within this rapidly growing field is reviewed.
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Affiliation(s)
- Eero Kontturi
- Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076, Finland
| | - Päivi Laaksonen
- Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076, Finland
- Center of Excellence Molecular Engineering of Biosynthetic Hybrid Materials Research, Aalto University and VTT, Espoo, FI-00076, Finland
| | - Markus B Linder
- Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076, Finland
- Center of Excellence Molecular Engineering of Biosynthetic Hybrid Materials Research, Aalto University and VTT, Espoo, FI-00076, Finland
| | - André H Gröschel
- Physical Chemistry and Centre for Nanointegration (CENIDE), University of Duisburg-Essen, DE-45127, Essen, Germany
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076, Finland
- Center of Excellence Molecular Engineering of Biosynthetic Hybrid Materials Research, Aalto University and VTT, Espoo, FI-00076, Finland
- Department of Applied Physics, Aalto University, Espoo, FI-00076, Finland
| | - Olli Ikkala
- Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076, Finland
- Center of Excellence Molecular Engineering of Biosynthetic Hybrid Materials Research, Aalto University and VTT, Espoo, FI-00076, Finland
- Department of Applied Physics, Aalto University, Espoo, FI-00076, Finland
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13
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Wang Z, Kang H, Zhao S, Zhang W, Zhang S, Li J. Polyphenol-induced cellulose nanofibrils anchored graphene oxide as nanohybrids for strong yet tough soy protein nanocomposites. Carbohydr Polym 2018; 180:354-364. [DOI: 10.1016/j.carbpol.2017.09.102] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 09/11/2017] [Accepted: 09/30/2017] [Indexed: 12/11/2022]
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Mashkour M, Moradabadi Z, Khazaeian A. Physical and tensile properties of epoxy laminated magnetic bacterial cellulose nanocomposite films. J Appl Polym Sci 2017. [DOI: 10.1002/app.45118] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Mahdi Mashkour
- Department of Wood Engineering and Technology; Gorgan University of Agricultural Sciences and Natural Resources; Gorgan 49189-43436 Iran
| | - Zahra Moradabadi
- Department of Wood Engineering and Technology; Gorgan University of Agricultural Sciences and Natural Resources; Gorgan 49189-43436 Iran
| | - Abolghasem Khazaeian
- Department of Wood Engineering and Technology; Gorgan University of Agricultural Sciences and Natural Resources; Gorgan 49189-43436 Iran
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15
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Arantes ACC, Almeida CDG, Dauzacker LCL, Bianchi ML, Wood DF, Williams TG, Orts WJ, Tonoli GHD. Renewable hybrid nanocatalyst from magnetite and cellulose for treatment of textile effluents. Carbohydr Polym 2017; 163:101-107. [PMID: 28267486 DOI: 10.1016/j.carbpol.2017.01.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 12/27/2016] [Accepted: 01/04/2017] [Indexed: 11/17/2022]
Abstract
A hybrid catalyst was prepared using cellulose nanofibrils and magnetite to degrade organic compounds. Cellulose nanofibrils were isolated by mechanical defibrillation producing a suspension used as a matrix for magnetite particles. The solution of nanofibrils and magnetite was dried and milled resulting in a catalyst with a 1:1 ratio of cellulose and magnetite that was chemically and physically characterized using light, scanning electron and transmission electron microscopies, specific surface area analysis, vibrating sample magnetometry, thermogravimetric analysis, Fourier transform infrared spectroscopy, X-ray diffraction, catalytic potential and degradation kinetics. Results showed good dispersion of the active phase, magnetite, in the mat of cellulosic nanofibrils. Leaching and re-use tests showed that catalytic activity was not lost over several cycles. The hybrid material produced was tested for degradation of methylene blue dye in Fenton-like reactions resulting in a potential catalyst for use in degradation of organic compounds.
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Affiliation(s)
| | | | | | - Maria Lucia Bianchi
- Department of Chemistry, Federal University of Lavras, CP 3037 Lavras-MG, Brazil.
| | - Delilah F Wood
- Bioproducts Research Unit, WRRC, ARS-USDA, 800 Buchanan St., Albany, CA 94710, USA.
| | - Tina G Williams
- Bioproducts Research Unit, WRRC, ARS-USDA, 800 Buchanan St., Albany, CA 94710, USA.
| | - William J Orts
- Bioproducts Research Unit, WRRC, ARS-USDA, 800 Buchanan St., Albany, CA 94710, USA.
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16
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Wang M, Anoshkin IV, Nasibulin AG, Ras RHA, Nonappa, Laine J, Kauppinen EI, Ikkala O. Electrical behaviour of native cellulose nanofibril/carbon nanotube hybrid aerogels under cyclic compression. RSC Adv 2016; 6:89051-89056. [PMID: 28496970 PMCID: PMC5361171 DOI: 10.1039/c6ra16202a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 09/05/2016] [Indexed: 11/21/2022] Open
Abstract
Hybrid aerogels consisting of cellulose nanofibers (CNF) and modified few-walled carbon nanotubes (FWCNT) are investigated under cyclic mechanical compression to explore "electrical fatigue". For this purpose the FWCNTs were hydrophilized, thus promoting their aqueous dispersibility to allow FWCNT/CNF hybrid hydrogels, followed by freeze-drying to obtain hybrid aerogels. The optimized composition consisting of FWCNT/CNF 20/80 wt/wt showed conductivity of 10-5 S cm-1 as promoted due to double percolation, and showed only small changes in electrical and mechanical behaviour upon cycling 100 times. The electrical behaviour under cycled compression shows good stability and reversibility.
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Affiliation(s)
- Miao Wang
- Department of Applied Physics , School of Science , Aalto University , P. O. Box 15100 , FI-00076 Espoo , Finland .
| | - Ilya V Anoshkin
- Department of Applied Physics , School of Science , Aalto University , P. O. Box 15100 , FI-00076 Espoo , Finland .
| | - Albert G Nasibulin
- Department of Applied Physics , School of Science , Aalto University , P. O. Box 15100 , FI-00076 Espoo , Finland .
- Skolkovo Insititute of Science and Technology , Nobel str. 3 , Moscow , 143026 , Russia
- Saint-Petersburg State Polytechnical University , Department of Material Science , Polytechnicheskaya 29 , 195251 , Saint-Petersburg , Russia
| | - Robin H A Ras
- Department of Applied Physics , School of Science , Aalto University , P. O. Box 15100 , FI-00076 Espoo , Finland .
| | - Nonappa
- Department of Applied Physics , School of Science , Aalto University , P. O. Box 15100 , FI-00076 Espoo , Finland .
| | - Janne Laine
- Department of Forest Products Technology , School of Chemical Technology , Aalto University , P. O. Box 16300 , FI-00076, Espoo , Finland
| | - Esko I Kauppinen
- Department of Applied Physics , School of Science , Aalto University , P. O. Box 15100 , FI-00076 Espoo , Finland .
| | - Olli Ikkala
- Department of Applied Physics , School of Science , Aalto University , P. O. Box 15100 , FI-00076 Espoo , Finland .
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Zhu H, Luo W, Ciesielski PN, Fang Z, Zhu JY, Henriksson G, Himmel ME, Hu L. Wood-Derived Materials for Green Electronics, Biological Devices, and Energy Applications. Chem Rev 2016; 116:9305-74. [DOI: 10.1021/acs.chemrev.6b00225] [Citation(s) in RCA: 876] [Impact Index Per Article: 109.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Hongli Zhu
- Department
of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
- Department
of Mechanical and Industrial Engineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Wei Luo
- Department
of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Peter N. Ciesielski
- Biosciences
Center, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, Colorado 80401, United States
| | - Zhiqiang Fang
- Department
of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - J. Y. Zhu
- Forest
Products Laboratory, USDA Forest Service, Madison, Wisconsin 53726, United States
| | - Gunnar Henriksson
- Division
of Wood Chemistry and Pulp Technology, Department of Fiber and Polymer
Technology, Royal Institute of Technology, KTH, Stockholm, Sweden
| | - Michael E. Himmel
- Biosciences
Center, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, Colorado 80401, United States
| | - Liangbing Hu
- Department
of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
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18
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Shweta K, Jha H. Synthesis and characterization of crystalline carboxymethylated lignin–TEOS nanocomposites for metal adsorption and antibacterial activity. BIORESOUR BIOPROCESS 2016. [DOI: 10.1186/s40643-016-0107-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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19
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Zhao HB, Fu ZB, Chen HB, Zhong ML, Wang CY. Excellent Electromagnetic Absorption Capability of Ni/Carbon Based Conductive and Magnetic Foams Synthesized via a Green One Pot Route. ACS APPLIED MATERIALS & INTERFACES 2016; 8:1468-77. [PMID: 26710881 DOI: 10.1021/acsami.5b10805] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Electromagnetic microwave absorption materials have attracted a great deal of attention. Foams for the low density and tunable porosity are considered as ideal microwave absorbents, while with the requirement of improving their inherent electromagnetic properties. In this manuscript, an innovative, easy, and green method was presented to synthesize an electromagnetic functionalized Ni/carbon foam, in which the formation of Ni nanoparticles and carbon occurred simultaneously from an affordable alginate/Ni(2+) foam precursor. The resultant Ni/carbon foam had a low density (0.1 g/cm(-3)) and high Ni nanoparticles loading (42 wt %). These Ni nanoparticles with a diameter of about 50-100 nm were highly crystallized and evenly embedded in porous graphite carbon without aggregation. Also, the resultant foam had a high surface area (451 m(2) g(-1)) and porosity and showed a moderate conductivity (6 S/m) and significant magnetism. Due to these special characteristics, the Ni/carbon foam exhibited greatly enhanced microwave absorption ability. Only with 10 wt % of functional fillers being used in the test template, the Ni/carbon foam based composite could reach an effective absorption bandwidth (below -10 dB) of 4.5 GHz and the minimum reflection value of -45 dB at 13.3 GHz with a thickness of 2 mm, while the traditional carbon foam and nano-Ni powder both showed very weak microwave absorption (the minimum reflection value < -10 dB). This foam was demonstrated to be a lightweight, high performance, and low filler loading microwave absorbing material. Furthermore, the detailed absorption mechanism of the foam was investigated. The result showed that the derived strong dielectric loss, including conductivity loss, interface polarization loss, weak magnetic loss, and naoporosity, contributes a great electromagnetic absorption.
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Affiliation(s)
- Hai-Bo Zhao
- Research Center of Laser Fusion, China Academy of Engineering Physics , Mianyang (Sichuan) 621000, China
| | - Zhi-Bing Fu
- Research Center of Laser Fusion, China Academy of Engineering Physics , Mianyang (Sichuan) 621000, China
| | - Hong-Bing Chen
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics , Mianyang (Sichuan) 621000, China
| | - Ming-Long Zhong
- Research Center of Laser Fusion, China Academy of Engineering Physics , Mianyang (Sichuan) 621000, China
| | - Chao-Yang Wang
- Research Center of Laser Fusion, China Academy of Engineering Physics , Mianyang (Sichuan) 621000, China
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20
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Liu RL, Li XQ, Liu HQ, Luo ZM, Ma J, Zhang ZQ, Fu Q. Eco-friendly fabrication of sponge-like magnetically carbonaceous fiber aerogel for high-efficiency oil–water separation. RSC Adv 2016. [DOI: 10.1039/c6ra02794f] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A magnetically carbonaceous fiber aerogel was for the first time fabricated by a facile approach from natural cotton and can be used as potential adsorbent without any further chemical modification for high-efficiency oil–water separation.
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Affiliation(s)
- Rui-Lin Liu
- School of Pharmacy
- Xi'an Jiaotong University
- Xi'an 710061
- PR China
| | - Xing-Qiang Li
- School of Stomatology
- Xi'an Jiaotong University
- Xi'an 710061
- PR China
| | - Hui-Qin Liu
- School of Stomatology
- Xi'an Jiaotong University
- Xi'an 710061
- PR China
| | - Zhi-Min Luo
- School of Pharmacy
- Xi'an Jiaotong University
- Xi'an 710061
- PR China
| | - Jin Ma
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- China
| | - Zhi-Qi Zhang
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- China
| | - Qiang Fu
- School of Pharmacy
- Xi'an Jiaotong University
- Xi'an 710061
- PR China
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21
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Wan C, Li J. Synthesis of well-dispersed magnetic CoFe 2 O 4 nanoparticles in cellulose aerogels via a facile oxidative co-precipitation method. Carbohydr Polym 2015; 134:144-50. [DOI: 10.1016/j.carbpol.2015.07.083] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 07/23/2015] [Accepted: 07/24/2015] [Indexed: 10/23/2022]
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22
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Green and biodegradable composite films with novel antimicrobial performance based on cellulose. Food Chem 2015; 197:250-6. [PMID: 26616947 DOI: 10.1016/j.foodchem.2015.10.127] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 09/18/2015] [Accepted: 10/24/2015] [Indexed: 11/23/2022]
Abstract
In order to obtain a safe and biodegradable material with antimicrobial properties from cellulose for food packaging, we presented a facile way to graft chitosan onto the oxidized cellulose films. The obtained films had a high transparent property of above 80% transmittance, excellent barrier properties against oxygen and antimicrobial properties against Escherichia coli and Staphylococcus aureus. The antimicrobial properties, mechanical properties, and water vapor permeability of composites are essential characteristics in determining their applicability as food-packaging materials. Moreover, using a sausage model, it was shown that the composites exhibited better performance than traditional polyethylene packaging material and demonstrated good potential as food packaging materials. The results presented a new insight into the development of green materials for food packaging.
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23
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Menchaca-Nal S, Londoño-Calderón CL, Cerrutti P, Foresti ML, Pampillo L, Bilovol V, Candal R, Martínez-García R. Facile synthesis of cobalt ferrite nanotubes using bacterial nanocellulose as template. Carbohydr Polym 2015; 137:726-731. [PMID: 26686185 DOI: 10.1016/j.carbpol.2015.10.068] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 10/16/2015] [Accepted: 10/18/2015] [Indexed: 10/22/2022]
Abstract
A facile method for the preparation of cobalt ferrite nanotubes by use of bacterial cellulose nanoribbons as a template is described. The proposed method relays on a simple coprecipitation operation, which is a technique extensively used for the synthesis of nanoparticles (either isolated or as aggregates) but not for the synthesis of nanotubes. The precursors employed in the synthesis are chlorides, and the procedure is carried out at low temperature (90 °C). By the method proposed a homogeneous distribution of cobalt ferrite nanotubes with an average diameter of 217 nm in the bacterial nanocellulose (BC) aerogel (3%) was obtained. The obtained nanotubes are formed by 26-102 nm cobalt ferrite clusters of cobalt ferrite nanoparticles with diameters in the 9-13 nm interval. The nanoparticles that form the nanotubes showed to have a certain crystalline disorder, which could be attributed in a greater extent to the small crystallite size, and, in a lesser extent, to microstrains existing in the crystalline lattice. The BC-templated-CoFe2O4 nanotubes exhibited magnetic behavior at room temperature. The magnetic properties showed to be influenced by a fraction of nanoparticles in superparamagnetic state.
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Affiliation(s)
- S Menchaca-Nal
- Institute of Polymer Technology and Nanotechnology, Faculty of Engineering, University of Buenos Aires-CONICET, Argentina
| | - C L Londoño-Calderón
- Institute of Polymer Technology and Nanotechnology, Faculty of Engineering, University of Buenos Aires-CONICET, Argentina
| | - P Cerrutti
- Department of Chemical Engineering, Faculty of Engineering, University of Buenos Aires, Argentina
| | - M L Foresti
- Institute of Polymer Technology and Nanotechnology, Faculty of Engineering, University of Buenos Aires-CONICET, Argentina
| | - L Pampillo
- Institute of Technology and Engineering Sciences "Hilario Fernández Long", Faculty of Engineering, University of Buenos Aires-CONICET, Argentina
| | - V Bilovol
- Institute of Technology and Engineering Sciences "Hilario Fernández Long", Faculty of Engineering, University of Buenos Aires-CONICET, Argentina
| | - R Candal
- Institute of Physical Chemistry of Materials Environment and Energy, Faculty of Natural Sciences, University of Buenos Aires-CONICET, Argentina
| | - R Martínez-García
- Faculty of Natural Resources, National University of Formosa-CONICET, Campus Universitario, Modulo I, Av. Gutnisky 3200, Formosa, Argentina.
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24
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Jin C, Han S, Li J, Sun Q. Fabrication of cellulose-based aerogels from waste newspaper without any pretreatment and their use for absorbents. Carbohydr Polym 2015; 123:150-6. [PMID: 25843846 DOI: 10.1016/j.carbpol.2015.01.056] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 01/03/2015] [Accepted: 01/14/2015] [Indexed: 10/24/2022]
Abstract
Cellulose-based aerogel (CBA) was prepared from waste newspaper (WNP) without any pretreatment using 1-allyl-3-methyimidazolium chloride (AmImCl) as a solvent via regeneration and an environmentally friendly freeze-drying method. After being treated with trimethylchlorosilane (TMCS) via a simple thermal chemical vapor deposition process, the resulting CBAs were rendered both hydrophobic and oleophilic. Successful silanization on the surface of the porous CBA was verified by a variety of techniques including scanning electron microscopy (SEM), energy-dispersive X-ray analysis (EDX), and water contact angle (WCA) measurements. As a result, the silane-coated, interconnected CBAs not only exhibited good absorption performance for oils (e.g., waste engine oil), but also showed absorption capacity for organic solvents such as chloroform (with a representative weight gain ranging from 11 to 22 times of their own dry weight), making them diversified absorbents for potential applications including sewage purification.
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Affiliation(s)
- Chunde Jin
- School of Engineering, Zhejiang Agricultural and Forestry University, Lin'an 311300, PR China; Key Laboratory of Wood Science and Technology, Zhejiang Province, PR China
| | - Shenjie Han
- School of Engineering, Zhejiang Agricultural and Forestry University, Lin'an 311300, PR China
| | - Jingpeng Li
- School of Engineering, Zhejiang Agricultural and Forestry University, Lin'an 311300, PR China
| | - Qingfeng Sun
- School of Engineering, Zhejiang Agricultural and Forestry University, Lin'an 311300, PR China.
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25
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Kharissova OV, Dias HVR, Kharisov BI. Magnetic adsorbents based on micro- and nano-structured materials. RSC Adv 2015. [DOI: 10.1039/c4ra11423j] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Micro- and nano-sized magnetic adsorbents based on elemental metals, iron oxides, and ferrites and supported by inorganic (carbon, graphene, silica, and zeolites) or organic (macromolecules, polysaccharides, and biomolecules) compounds are reviewed.
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Affiliation(s)
| | - H. V. Rasika Dias
- Department of Chemistry & Biochemistry
- The University of Texas at Arlington
- Arlington
- USA
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26
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Hosoda N, Tsujimoto T, Uyama H. Plant oil-based green composite using porous poly(3-hydroxybutyrate). Polym J 2014. [DOI: 10.1038/pj.2014.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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27
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Liu S, Yu T, Wu Y, Li W, Li B. Evolution of cellulose into flexible conductive green electronics: a smart strategy to fabricate sustainable electrodes for supercapacitors. RSC Adv 2014. [DOI: 10.1039/c4ra07017h] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The integration of cellulose with electronic elements could form green electronics with the merits of the biopolymer and conductive polymer.
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Affiliation(s)
- Shilin Liu
- College of Food Science & Technology
- Huazhong Agricultural University
- Wuhan, China
- Jiangsu Province Biomass Energy and Materials Laboratary
- Nanjing, 210042 China
| | - Tengfei Yu
- College of Chemical and Material Engineering
- Jiangnan University
- Wuxi, China
| | - Yuehan Wu
- College of Food Science & Technology
- Huazhong Agricultural University
- Wuhan, China
| | - Wei Li
- College of Food Science & Technology
- Huazhong Agricultural University
- Wuhan, China
| | - Bin Li
- College of Food Science & Technology
- Huazhong Agricultural University
- Wuhan, China
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28
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Wu Y, Zhang X, Li B, Liu S. Highly transparent and flexible silica/cellulose films with a low coefficient of thermal expansion. RSC Adv 2014. [DOI: 10.1039/c4ra08026b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Highly transparent and flexible silica/cellulose films with low thermal expansion coefficients have been prepared by the in situ synthesis of silica in cellulose scaffolds using Na2SiO3 as a precursor.
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Affiliation(s)
- Yuehan Wu
- College of Food Science & Technology
- Huazhong Agricultural University
- Wuhan, 430070 China
| | - Xingzhong Zhang
- College of Food Science & Technology
- Huazhong Agricultural University
- Wuhan, 430070 China
| | - Bin Li
- College of Food Science & Technology
- Huazhong Agricultural University
- Wuhan, 430070 China
| | - Shilin Liu
- College of Food Science & Technology
- Huazhong Agricultural University
- Wuhan, 430070 China
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29
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Nguyen ST, Feng J, Le NT, Le ATT, Hoang N, Tan VBC, Duong HM. Cellulose Aerogel from Paper Waste for Crude Oil Spill Cleaning. Ind Eng Chem Res 2013. [DOI: 10.1021/ie4032567] [Citation(s) in RCA: 228] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Son T. Nguyen
- Department
of Mechanical Engineering, National University of Singapore, 9 Engineering
Drive 1, Singapore 117575
| | - Jingduo Feng
- Department
of Mechanical Engineering, National University of Singapore, 9 Engineering
Drive 1, Singapore 117575
| | - Nhat T. Le
- R&D Center for Petroleum Safety and Environment (CPSE), Vietnam Petroleum Institute (VPI), Ward 27, Binh Thanh District, Hochiminh City, Vietnam
| | - Ai T. T. Le
- R&D Center for Petroleum Safety and Environment (CPSE), Vietnam Petroleum Institute (VPI), Ward 27, Binh Thanh District, Hochiminh City, Vietnam
| | - Nguyen Hoang
- R&D Center for Petroleum Safety and Environment (CPSE), Vietnam Petroleum Institute (VPI), Ward 27, Binh Thanh District, Hochiminh City, Vietnam
| | - Vincent B. C. Tan
- Department
of Mechanical Engineering, National University of Singapore, 9 Engineering
Drive 1, Singapore 117575
| | - Hai M. Duong
- Department
of Mechanical Engineering, National University of Singapore, 9 Engineering
Drive 1, Singapore 117575
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30
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Chen N, Pan Q. Versatile fabrication of ultralight magnetic foams and application for oil-water separation. ACS NANO 2013; 7:6875-83. [PMID: 23875978 DOI: 10.1021/nn4020533] [Citation(s) in RCA: 170] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Ultralow-density (<10 mg cm(-3)) materials have many important technological applications; however, most of them were fabricated using either expensive materials or complicated procedures. In this study, ultralight magnetic Fe2O3/C, Co/C, and Ni/C foams (with a density <5 mg cm(-3)) were fabricated on the centimeter scale by pyrolyzing commercial polyurethane sponge grafted with polyelectrolyte layers based on the corresponding metal acrylate at 400 °C. The ultralight foams consisted of 3D interconnected hollow tubes that have a diameter of micrometer and nanoscale wall thickness, forming hierarchical structures from macroscopic to nanometer length scales. More interesting was that the wall thickness and morphology of the microtubes could be tuned by controlling the concentrations of acrylic acid and metallic cations. After modification with low-surface-energy polysiloxane, the ultralight foams showed superhydrophobicity and superoleophilicity, which quickly and selectively absorbed a variety of oils from a polluted water surface under magnetic field. The oil absorption capacity reached 100 times of the foams' own weight, exhibiting one of the highest values among existing absorptive counterparts. By controlling the composition and conformation of the grafted polyelectrolyte layers, the present approach is extendable to fabricate a variety of ultralow-density materials desirable for absorptive materials, electrode materials, catalyst supports, etc.
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Affiliation(s)
- Ning Chen
- School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, People's Republic of China
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31
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Javadi A, Zheng Q, Payen F, Javadi A, Altin Y, Cai Z, Sabo R, Gong S. Polyvinyl alcohol-cellulose nanofibrils-graphene oxide hybrid organic aerogels. ACS APPLIED MATERIALS & INTERFACES 2013; 5:5969-75. [PMID: 23789837 DOI: 10.1021/am400171y] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Hybrid organic aerogels consisting of polyvinyl alcohol (PVA), cellulose nanofibrils (CNFs), and graphene oxide nanosheets (GONSs) were prepared using an environmentally friendly freeze-drying process. The material properties of these fabricated aerogels were measured and analyzed using various characterization techniques including compression testing, scanning electron microscopy, thermogravimetric (TGA) analysis, Brunauer-Emmet-Teller (BET) surface area analysis, and contact angle measurements. These environmentally friendly, biobased hybrid organic aerogels exhibited a series of desirable properties including a high specific compressive strength and compressive failure strain, ultralow density and thermal conductivity, good thermal stability, and moisture resistance, making them potentially useful for a broad range of applications including thermal insulation.
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Affiliation(s)
- Alireza Javadi
- Department of Biomedical Engineering, University of Wisconsin, Madison, Wisconsin, United States
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