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Yagita T, Ito T, Hirano T, Toyomasu T, Hasegawa S, Saito T, Fujisawa S. Evaluating the Emulsifying Capacity of Cellulose Nanofibers Using Inverse Gas Chromatography. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:4362-4369. [PMID: 36917026 DOI: 10.1021/acs.langmuir.2c03369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Cellulose nanofibers (CNFs) are attracting increasing attention as emulsifiers owing to their high emulsifying capacity, biocompatibility, and biodegradability. The emulsifying capacity has been experimentally shown to depend not only on the type of oil but also on the chemical structure of the CNF surface. However, the theoretical relationship between these two factors and emulsification remains unclear, and therefore, industrial applications are limited. Here, we assess the desorption energy (DE) of CNFs from the oil surface in o/w emulsion for various CNF/oil combinations to understand the mechanism of emulsification. Two types of surface-carboxylated CNFs having different cationic counterions, namely, sodium and tetrabutylammonium ions, were used as emulsifiers. The surface free energies of the CNFs were evaluated using inverse gas chromatography, and the nonpolar Lifshitz-van der Waals γLW, electron-acceptor γ+, and electron-donor γ- components were obtained from the chromatography profiles based on the van Oss-Chaudhury-Good theory. CNF with tetrabutylammonium ions was found to have a higher γ+ component than CNF with sodium ions. Therefore, the emulsion stability improved with oils having high γ- components owing to the increase in the DE value; this was verified through both theoretical calculations using a fibrous model and experimental dynamic interfacial tension measurements. Our approach is useful for predicting the emulsifying capacity of CNFs, and it should contribute toward the design of novel CNF-based emulsions.
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Affiliation(s)
- Tomohito Yagita
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Tomoki Ito
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Takayuki Hirano
- Material Characterization Laboratories, Toray Research Center, Inc., Otsu 520-8567, Japan
| | - Takayuki Toyomasu
- Material Characterization Laboratories, Toray Research Center, Inc., Otsu 520-8567, Japan
| | - Sai Hasegawa
- Material Characterization Laboratories, Toray Research Center, Inc., Otsu 520-8567, Japan
| | - Tsuguyuki Saito
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Shuji Fujisawa
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
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Solhi L, Guccini V, Heise K, Solala I, Niinivaara E, Xu W, Mihhels K, Kröger M, Meng Z, Wohlert J, Tao H, Cranston ED, Kontturi E. Understanding Nanocellulose-Water Interactions: Turning a Detriment into an Asset. Chem Rev 2023; 123:1925-2015. [PMID: 36724185 PMCID: PMC9999435 DOI: 10.1021/acs.chemrev.2c00611] [Citation(s) in RCA: 53] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Modern technology has enabled the isolation of nanocellulose from plant-based fibers, and the current trend focuses on utilizing nanocellulose in a broad range of sustainable materials applications. Water is generally seen as a detrimental component when in contact with nanocellulose-based materials, just like it is harmful for traditional cellulosic materials such as paper or cardboard. However, water is an integral component in plants, and many applications of nanocellulose already accept the presence of water or make use of it. This review gives a comprehensive account of nanocellulose-water interactions and their repercussions in all key areas of contemporary research: fundamental physical chemistry, chemical modification of nanocellulose, materials applications, and analytical methods to map the water interactions and the effect of water on a nanocellulose matrix.
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Affiliation(s)
- Laleh Solhi
- Department of Bioproducts and Biosystems, Aalto University, EspooFI-00076, Finland
| | - Valentina Guccini
- Department of Bioproducts and Biosystems, Aalto University, EspooFI-00076, Finland
| | - Katja Heise
- Department of Bioproducts and Biosystems, Aalto University, EspooFI-00076, Finland
| | - Iina Solala
- Department of Bioproducts and Biosystems, Aalto University, EspooFI-00076, Finland
| | - Elina Niinivaara
- Department of Bioproducts and Biosystems, Aalto University, EspooFI-00076, Finland.,Department of Wood Science, University of British Columbia, Vancouver, British ColumbiaV6T 1Z4, Canada
| | - Wenyang Xu
- Department of Bioproducts and Biosystems, Aalto University, EspooFI-00076, Finland.,Laboratory of Natural Materials Technology, Åbo Akademi University, TurkuFI-20500, Finland
| | - Karl Mihhels
- Department of Bioproducts and Biosystems, Aalto University, EspooFI-00076, Finland
| | - Marcel Kröger
- Department of Bioproducts and Biosystems, Aalto University, EspooFI-00076, Finland
| | - Zhuojun Meng
- Department of Bioproducts and Biosystems, Aalto University, EspooFI-00076, Finland.,Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou325001, China
| | - Jakob Wohlert
- Wallenberg Wood Science Centre (WWSC), Department of Fibre and Polymer Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, 10044Stockholm, Sweden
| | - Han Tao
- Department of Bioproducts and Biosystems, Aalto University, EspooFI-00076, Finland
| | - Emily D Cranston
- Department of Wood Science, University of British Columbia, Vancouver, British ColumbiaV6T 1Z4, Canada.,Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, British ColumbiaV6T 1Z3, Canada
| | - Eero Kontturi
- Department of Bioproducts and Biosystems, Aalto University, EspooFI-00076, Finland
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Mendonça I, Sousa J, Cunha C, Faria M, Ferreira A, Cordeiro N. Solving urban water microplastics with bacterial cellulose hydrogels: Leveraging predictive computational models. CHEMOSPHERE 2023; 314:137719. [PMID: 36592831 DOI: 10.1016/j.chemosphere.2022.137719] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 12/28/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
The prevalence of microplastics (MPs) in both urban and aquatic ecosystems is concerning, with wastewater treatment plants being considered one of the major sources of the issue. As the focus on developing sustainable solutions increases, unused remnants from bacterial cellulose (BC) membranes were ground to form BC hydrogels as potential bioflocculants of MPs. The influence of operational parameters such as BC:MPs ratio, hydrogel grinding, immersion and mixing time, temperature, pH, ionic strength, and metal cations on MPs flocculation and dispersion were evaluated. A response surface methodology based on experimental data sets was computed to understand how these parameters influence the flocculation process. Further, both the BC hydrogel and the hetero-aggregation of MPs were characterised by UV-Vis, ATR-FTIR, IGC, water uptake assays, fluorescence, and scanning electron microscopy. These highlights that the BC hydrogel would be fully effective at hetero-aggregating MPs in naturally-occurring concentrations, thereby not constituting a limiting performance factor for MPs' optimal flocculation and aggregation. Even considering exceptionally high concentrations of MPs (2 g/L) that far exceed naturally-occurring concentrations, the BC hydrogel was shown to have elevated MPs flocculation activity (reaching 88.6%: 1.77 g/L). The computation of bioflocculation activity showed high reliability in predicting flocculation performance, unveiling that the BC:MPs ratio and grinding times were the most critical variables modulating flocculation rates. Also, short exposure times (5 min) were sufficient to drive robust particle aggregation. The microporous nature of the hydrogel revealed by electron microscopy is the likely driver of strong MPs bioflocculant activity, far outperforming dispersive commercial bioflocculants like xanthan gum and alginate. This pilot study provides convincing evidence that even BC remainings can be used to produce highly potent and circular bioflocculators of MPs, with prospective application in the wastewater treatment industry.
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Affiliation(s)
- Ivana Mendonça
- LB3 - Faculty of Science and Engineering, University of Madeira, 9020-105 Funchal, Portugal
| | - Jessica Sousa
- LB3 - Faculty of Science and Engineering, University of Madeira, 9020-105 Funchal, Portugal
| | - César Cunha
- LB3 - Faculty of Science and Engineering, University of Madeira, 9020-105 Funchal, Portugal
| | - Marisa Faria
- LB3 - Faculty of Science and Engineering, University of Madeira, 9020-105 Funchal, Portugal; CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal
| | - Artur Ferreira
- CICECO - Aveiro Institute of Materials and Águeda School of Technology and Management, University of Aveiro, 3754-909, Águeda, Portugal
| | - Nereida Cordeiro
- LB3 - Faculty of Science and Engineering, University of Madeira, 9020-105 Funchal, Portugal; CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal.
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Silva ACQ, Silvestre AJD, Vilela C, Freire CSR. Cellulose and protein nanofibrils: Singular biobased nanostructures for the design of sustainable advanced materials. Front Bioeng Biotechnol 2022; 10:1059097. [PMID: 36582838 PMCID: PMC9793328 DOI: 10.3389/fbioe.2022.1059097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 11/25/2022] [Indexed: 12/15/2022] Open
Abstract
Polysaccharides and proteins are extensively used for the design of advanced sustainable materials. Owing to the high aspect ratio and specific surface area, ease of modification, high mechanical strength and thermal stability, renewability, and biodegradability, biopolymeric nanofibrils are gaining growing popularity amongst the catalog of nanostructures exploited in a panoply of fields. These include the nanocomposites, paper and packaging, environmental remediation, electronics, energy, and biomedical applications. In this review, recent trends on the use of cellulose and protein nanofibrils as versatile substrates for the design of high-performance nanomaterials are assessed. A concise description of the preparation methodologies and characteristics of cellulosic nanofibrils, namely nanofibrillated cellulose (NFC), bacterial nanocellulose (BNC), and protein nanofibrils is presented. Furthermore, the use of these nanofibrils in the production of sustainable materials, such as membranes, films, and patches, amongst others, as well as their major domains of application, are briefly described, with focus on the works carried out at the BioPol4Fun Research Group (Innovation in BioPolymer based Functional Materials and Bioactive Compounds) from the Portuguese associate laboratory CICECO-Aveiro Institute of Materials (University of Aveiro). The potential for partnership between both types of nanofibrils in advanced material development is also reviewed. Finally, the critical challenges and opportunities for these biobased nanostructures for the development of functional materials are addressed.
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Faria M, Cunha C, Gomes M, Mendonça I, Kaufmann M, Ferreira A, Cordeiro N. Bacterial cellulose biopolymers: The sustainable solution to water-polluting microplastics. WATER RESEARCH 2022; 222:118952. [PMID: 35964508 DOI: 10.1016/j.watres.2022.118952] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 08/02/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
Microplastics (MPs) pollution has become one of our time's most consequential issue. These micropolymeric particles are ubiquitously distributed across all natural and urban ecosystems. Current filtration systems in wastewater treatment plants (WWTPs) rely on non-biodegradable fossil-based polymeric filters whose maintenance procedures are environmentally damaging and unsustainable. Following the need to develop sustainable filtration frameworks for MPs water removal, years of R&D lead to the conception of bacterial cellulose (BC) biopolymers. These bacterial-based naturally secreted polymers display unique features for biotechnological applications, such as straightforward production, large surface areas, nanoporous structures, biodegradability, and utilitarian circularity. Diligently, techniques such as flow cytometry, scanning electron microscopy and fluorescence microscopy were used to evaluate the feasibility and characterise the removal dynamics of highly concentrated MPs-polluted water by BC biopolymers. Results show that BC biopolymers display removal efficiencies of MPs of up to 99%, maintaining high performance for several continuous cycles. The polymer's characterisation showed that MPs were both adsorbed and incorporated in the 3D nanofibrillar network. The use of more economically- and logistics-favourable dried BC biopolymers preserves their physicochemical properties while maintaining high efficiency (93-96%). These polymers exhibited exceptional structural preservation, conserving a high water uptake capacity which drives microparticle retention. In sum, this study provides clear evidence that BC biopolymers are high performing, multifaceted and genuinely sustainable/circular alternatives to synthetic water treatment MPs-removal technologies.
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Affiliation(s)
- Marisa Faria
- LB3-Faculty of Science and Engineering, University of Madeira, Portugal; CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Portugal
| | - César Cunha
- LB3-Faculty of Science and Engineering, University of Madeira, Portugal
| | - Madalena Gomes
- LB3-Faculty of Science and Engineering, University of Madeira, Portugal
| | - Ivana Mendonça
- LB3-Faculty of Science and Engineering, University of Madeira, Portugal
| | - Manfred Kaufmann
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Portugal; Marine Biology Station of Funchal, Faculty of Life Sciences, University of Madeira, Portugal
| | - Artur Ferreira
- CICECO-Aveiro Institute of Materials and Águeda School of Technology and Management, University of Aveiro, Portugal
| | - Nereida Cordeiro
- LB3-Faculty of Science and Engineering, University of Madeira, Portugal; CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Portugal.
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Natural Polymers-Based Materials: A Contribution to a Greener Future. MOLECULES (BASEL, SWITZERLAND) 2021; 27:molecules27010094. [PMID: 35011326 PMCID: PMC8747056 DOI: 10.3390/molecules27010094] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 01/19/2023]
Abstract
Natural polymers have emerged as promising candidates for the sustainable development of materials in areas ranging from food packaging and biomedicine to energy storage and electronics. In tandem, there is a growing interest in the design of advanced materials devised from naturally abundant and renewable feedstocks, in alignment with the principles of Green Chemistry and the 2030 Agenda for Sustainable Development. This review aims to highlight some examples of the research efforts conducted at the Research Team BioPol4fun, Innovation in BioPolymer-based Functional Materials and Bioactive Compounds, from the Portuguese Associate Laboratory CICECO–Aveiro Institute of Materials at the University of Aveiro, regarding the exploitation of natural polymers (and derivatives thereof) for the development of distinct sustainable biobased materials. In particular, focus will be given to the use of polysaccharides (cellulose, chitosan, pullulan, hyaluronic acid, fucoidan, alginate, and agar) and proteins (lysozyme and gelatin) for the assembly of composites, coatings, films, membranes, patches, nanosystems, and microneedles using environmentally friendly strategies, and to address their main domains of application.
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Okoro C, Mohammed Z, Jeelani S, Rangari V. Plasticizing effect of biodegradable dipropylene glycol bibenzoate and epoxidized linseed oil on diglycidyl ether of bisphenol A based epoxy resin. J Appl Polym Sci 2021. [DOI: 10.1002/app.50661] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Chinedu Okoro
- Department of Material Science and Engineering Tuskegee University Tuskegee Alabama USA
| | - Zaheeruddin Mohammed
- Department of Material Science and Engineering Tuskegee University Tuskegee Alabama USA
| | - Shaik Jeelani
- Department of Material Science and Engineering Tuskegee University Tuskegee Alabama USA
| | - Vijaya Rangari
- Department of Material Science and Engineering Tuskegee University Tuskegee Alabama USA
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Bacterial Cellulose-Modified Polyhydroxyalkanoates Scaffolds Promotes Bone Formation in Critical Size Calvarial Defects in Mice. MATERIALS 2020; 13:ma13061433. [PMID: 32245214 PMCID: PMC7142421 DOI: 10.3390/ma13061433] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/11/2020] [Accepted: 03/16/2020] [Indexed: 11/17/2022]
Abstract
Bone regeneration is a claim challenge in addressing bone defects with large tissue deficits, that involves bone grafts to support the activity. In vitro biocompatibility of the bacterial cellulose-modified polyhydroxyalkanoates (PHB/BC) scaffolds and its osteogenic potential in critical-size mouse calvaria defects had been investigated. Bone promotion and mineralization were analyzed by biochemistry, histology/histomorphometry, X-ray analysis and immunofluorescence for highlighting osteogenesis markers. In summary, our results showed that PHB/BC scaffolds are able to support 3T3-L1 preadipocytes proliferation and had a positive effect on in vivo osteoblast differentiation, consequently inducing new bone formation after 20 weeks post-implantation. Thus, the newly developed PHB/BC scaffolds could turn out to be suitable biomaterials for the bone tissue engineering purpose.
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Silva NHCS, Mota JP, Santos de Almeida T, Carvalho JPF, Silvestre AJD, Vilela C, Rosado C, Freire CSR. Topical Drug Delivery Systems Based on Bacterial Nanocellulose: Accelerated Stability Testing. Int J Mol Sci 2020; 21:E1262. [PMID: 32070054 PMCID: PMC7072910 DOI: 10.3390/ijms21041262] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 02/08/2020] [Accepted: 02/11/2020] [Indexed: 01/06/2023] Open
Abstract
Bacterial nanocellulose (BNC) membranes have enormous potential as systems for topical drug delivery due to their intrinsic biocompatibility and three-dimensional nanoporous structure, which can house all kinds of active pharmaceutical ingredients (APIs). Thus, the present study investigated the long-term storage stability of BNC membranes loaded with both hydrophilic and lipophilic APIs, namely, caffeine, lidocaine, ibuprofen and diclofenac. The storage stability was evaluated under accelerated testing conditions at different temperatures and relative humidity (RH), i.e., 75% RH/40 °C, 60% RH/25 °C and 0% RH/40 °C. All systems were quite stable under these storage conditions with no significant structural and morphological changes or variations in the drug release profile. The only difference observed was in the moisture-uptake, which increased with RH due to the hydrophilic nature of BNC. Furthermore, the caffeine-loaded BNC membrane was selected for in vivo cutaneous compatibility studies, where patches were applied in the volar forearm of twenty volunteers for 24 h. The cutaneous responses were assessed by non-invasive measurements and the tests revealed good compatibility for caffeine-loaded BNC membranes. These results highlight the good storage stability of the API-loaded BNC membranes and their cutaneous compatibility, which confirms the real potential of these dermal delivery systems.
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Affiliation(s)
- Nuno H. C. S. Silva
- CICECO–Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (N.H.C.S.S.); (J.P.F.C.); (A.J.D.S.); (C.V.)
| | - Joana P. Mota
- CBIOS–Research Center for Biosciences and Health Technologies, Lusófona University, Campo Grande 376, 1749-024 Lisbon, Portugal; (J.P.M.); (T.S.d.A.)
| | - Tânia Santos de Almeida
- CBIOS–Research Center for Biosciences and Health Technologies, Lusófona University, Campo Grande 376, 1749-024 Lisbon, Portugal; (J.P.M.); (T.S.d.A.)
| | - João P. F. Carvalho
- CICECO–Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (N.H.C.S.S.); (J.P.F.C.); (A.J.D.S.); (C.V.)
| | - Armando J. D. Silvestre
- CICECO–Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (N.H.C.S.S.); (J.P.F.C.); (A.J.D.S.); (C.V.)
| | - Carla Vilela
- CICECO–Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (N.H.C.S.S.); (J.P.F.C.); (A.J.D.S.); (C.V.)
| | - Catarina Rosado
- CBIOS–Research Center for Biosciences and Health Technologies, Lusófona University, Campo Grande 376, 1749-024 Lisbon, Portugal; (J.P.M.); (T.S.d.A.)
| | - Carmen S. R. Freire
- CICECO–Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (N.H.C.S.S.); (J.P.F.C.); (A.J.D.S.); (C.V.)
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Vilela C, Oliveira H, Almeida A, Silvestre AJ, Freire CS. Nanocellulose-based antifungal nanocomposites against the polymorphic fungus Candida albicans. Carbohydr Polym 2019; 217:207-216. [DOI: 10.1016/j.carbpol.2019.04.046] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 04/08/2019] [Accepted: 04/09/2019] [Indexed: 10/27/2022]
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Bach Q, Vu CM, Vu HT, Vu HB, Van Nguyen T, Chang SW, Nguyen DD, Thi TAD, Doan VN. Significant enhancement of fracture toughness and mechanical properties of epoxy resin using CTBN‐grafted epoxidized linseed oil. J Appl Polym Sci 2019. [DOI: 10.1002/app.48276] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Quang‐Vu Bach
- Sustainable Management of Natural Resources and Environment Research Group, Faculty of Environment and Labour SafetyTon Duc Thang University Ho Chi Minh City Vietnam
| | - Cuong Manh Vu
- Center for Advanced ChemistryInstitute of Research and Development, Duy Tan University Da Nang Vietnam
- Faculty of Chemical‐Physical EngineeringLe Qui Don Technical University, 236 Hoang Quoc Viet Ha Noi Vietnam
| | - Huong Thi Vu
- AQP Research and Control Pharmaceuticals Joint Stock Company (AQP Pharma J.S.C) Dong Da Ha Noi Vietnam
| | - Hoa Binh Vu
- Ghent University, Krijgslaan 281 (S4) Ghent Belgium
| | - Tuyen Van Nguyen
- Institute of ChemistryVietnam Academy of Science and Technology, 18‐Hoang Quoc Viet, Cau Giay Hanoi Vietnam
| | - Soon Wong Chang
- Department of Environmental Energy and EngineeringKyonggi University Suwon 442‐760 Korea
| | - Dinh Duc Nguyen
- Department of Environmental Energy and EngineeringKyonggi University Suwon 442‐760 Korea
| | - Tuyet Anh Dang Thi
- Institute of ChemistryVietnam Academy of Science and Technology, 18‐Hoang Quoc Viet, Cau Giay Hanoi Vietnam
| | - Vu Ngoc Doan
- Faculty of Chemical‐Physical EngineeringLe Qui Don Technical University, 236 Hoang Quoc Viet Ha Noi Vietnam
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Faria M, Vilela C, Mohammadkazemi F, Silvestre AJD, Freire CSR, Cordeiro N. Poly(glycidyl methacrylate)/bacterial cellulose nanocomposites: Preparation, characterization and post-modification. Int J Biol Macromol 2019; 127:618-627. [PMID: 30695728 DOI: 10.1016/j.ijbiomac.2019.01.133] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 01/22/2019] [Accepted: 01/23/2019] [Indexed: 12/17/2022]
Abstract
Nanocomposites composed of poly(glycidyl methacrylate) (PGMA) and bacterial cellulose (BC) were prepared by the in-situ free radical polymerization of glycidyl methacrylate (GMA) inside the BC network. The resulting nanocomposites were characterized in terms of structure, morphology, water-uptake capacity, thermal stability and viscoelastic properties. The three-dimensional structure of BC endowed the nanocomposites with good thermal stability (up to 270 °C) and viscoelastic properties (minimum storage modulus = 80 MPa at 200 °C). In addition, the water-uptake and crystallinity decreased with the increasing content of the hydrophobic and amorphous PGMA matrix. These nanocomposites were then submitted to post-modification via acid-catalysed hydrolysis to convert the hydrophobic PGMA into the hydrophilic poly(glyceryl methacrylate) (PGOHMA) counterpart, which increased the hydrophilicity of the nanocomposites and consequently improved their water-uptake capacity. Besides, the post-modified nanocomposites maintained a good thermal stability (up to 250 °C), viscoelastic properties (minimum storage modulus = 171 MPa at 200 °C) and porous structure. In view of these results, the PGMA/BC nanocomposites can be used as functional hydrophobic nanocomposites for post-modification reactions, whereas the PGOHMA/BC nanocomposites might have potential for biomedical applications requiring hydrophilic, swellable and biocompatible materials.
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Affiliation(s)
- Marisa Faria
- Faculty of Exact Science and Engineering, University of Madeira, 9000-390 Funchal, Portugal
| | - Carla Vilela
- CICECO - Aveiro Institute of Materials, Department of Chemistry, Campus de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Faranak Mohammadkazemi
- Faculty of New Technologies Engineering, Shahid Beheshti University, Science and Research Campus, Zirab, Savadkooh, Mazandaran, Iran
| | - Armando J D Silvestre
- CICECO - Aveiro Institute of Materials, Department of Chemistry, Campus de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Carmen S R Freire
- CICECO - Aveiro Institute of Materials, Department of Chemistry, Campus de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Nereida Cordeiro
- Faculty of Exact Science and Engineering, University of Madeira, 9000-390 Funchal, Portugal.
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