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Mattos BD, Zhu Y, Tardy BL, Beaumont M, Ribeiro ACR, Missio AL, Otoni CG, Rojas OJ. Versatile Assembly of Metal-Phenolic Network Foams Enabled by Tannin-Cellulose Nanofibers. Adv Mater 2023; 35:e2209685. [PMID: 36734159 DOI: 10.1002/adma.202209685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 01/31/2023] [Indexed: 06/18/2023]
Abstract
Metal-phenolic network (MPN) foams are prepared using colloidal suspensions of tannin-containing cellulose nanofibers (CNFs) that are ice-templated and thawed in ethanolic media in the presence of metal nitrates. The MPN facilitates the formation of solid foams by air drying, given the strength and self-supporting nature of the obtained tannin-cellulose nanohybrid structures. The porous characteristics and (dry and wet) compression strength of the foams are rationalized by the development of secondary, cohesive metal-phenolic layers combined with a hydrogen bonding network involving the CNF. The shrinkage of the MPN foams is as low as 6% for samples prepared with 2.5-10% tannic acid (or condensed tannin at 2.5%) with respect to CNF content. The strength of the MPN foams reaches a maximum at 10% tannic acid (using Fe(III) ions), equivalent to a compressive strength 70% higher than that produced with tannin-free CNF foams. Overall, a straightforward framework is introduced to synthesize MPN foams whose physical and mechanical properties are tailored by the presence of tannins as well as the metal ion species that enable the metal-phenolic networking. Depending on the metal ion, the foams are amenable to modification according to the desired application.
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Affiliation(s)
- Bruno D Mattos
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, FI-00076, Espoo, Finland
- Technological Development Center, Materials Science and Engineering (PPGCEM), Federal University of Pelotas (UFPel), Gomes Carneiro 1, Pelotas, RS, 96010-610, Brazil
| | - Ya Zhu
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, FI-00076, Espoo, Finland
| | - Blaise L Tardy
- Department of Chemical Engineering, Research and Innovation Center on CO2 and Hydrogen, Center for Membrane and Advanced Water Technology, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Marco Beaumont
- Department of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences, Konrad-Lorenz-Str. 24, 3430, Tulln, Austria
| | - Ana Carolina R Ribeiro
- Technological Development Center, Materials Science and Engineering (PPGCEM), Federal University of Pelotas (UFPel), Gomes Carneiro 1, Pelotas, RS, 96010-610, Brazil
| | - André L Missio
- Technological Development Center, Materials Science and Engineering (PPGCEM), Federal University of Pelotas (UFPel), Gomes Carneiro 1, Pelotas, RS, 96010-610, Brazil
| | - Caio G Otoni
- Department of Materials Engineering (DEMa), Federal University of São Carlos (UFSCar), Rod. Washington Luís km 235, São Carlos, SP, 13565-905, Brazil
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, FI-00076, Espoo, Finland
- Bioproducts Institute, Department of Chemical and Biological Engineering, Department of Chemistry and Department of Wood Science, University of British Columbia, Vancouver, British Columbia, V6T 1Z4, Canada
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Acosta AP, Gallio E, Cruz N, Aramburu AB, Lunkes N, Missio AL, Delucis RDA, Gatto DA. Alumina as an Antifungal Agent for Pinus elliottii Wood. J Fungi (Basel) 2022; 8:jof8121299. [PMID: 36547632 PMCID: PMC9785303 DOI: 10.3390/jof8121299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
This work deals with the durability of a Pinus elliotti wood impregnated with alumina (Al2O3) particles. The samples were impregnated at three different Al2O3 weight fractions (c.a. 0.1%, 0.3% and 0.5%) and were then exposed to two wood-rot fungi, namely white-rot fungus (Trametes versicolor) and brown-rot fungus (Gloeophyllum trabeum). Thermal and chemical characteristics were evaluated by Fourier transform infrared spectroscopy (FT-IR) and thermogravimetric (TG) analyses. The wood which incorporated 0.3 wt% of Al2O3 presented a weight loss 91.5% smaller than the untreated wood after being exposed to the white-rot fungus. On the other hand, the highest effectiveness against the brown-rot fungus was reached by the wood treated with 5 wt% of Al2O3, which presented a mass loss 91.6% smaller than that of the untreated pine wood. The Al2O3-treated woods presented higher antifungal resistances than the untreated ones in a way that: the higher the Al2O3 content, the higher the thermal stability. In general, the impregnation of the Al2O3 particles seems to be a promising treatment for wood protection against both studied wood-rot fungi. Additionally, both FT-IR and TG results were valuable tools to ascertain chemical changes ascribed to fungal decay.
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Affiliation(s)
- Andrey P. Acosta
- Postgraduate Program in Mining, Metallurgical and Materials Engineering, Federal University of Rio Grande do Sul, Porto Alegre 90650-001, RS, Brazil
| | - Ezequiel Gallio
- Postgraduate Program in Materials Science and Engineering, Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
| | - Nidria Cruz
- Postgraduate Program in Materials Science and Engineering, Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
| | - Arthur B. Aramburu
- Postgraduate Program in Mining, Metallurgical and Materials Engineering, Federal University of Rio Grande do Sul, Porto Alegre 90650-001, RS, Brazil
| | - Nayara Lunkes
- Postgraduate Program in Materials Science and Engineering, Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
| | - André L. Missio
- Postgraduate Program in Materials Science and Engineering, Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
- Correspondence: ; Tel.: +55-55-9944-4478
| | - Rafael de A. Delucis
- Postgraduate Program in Materials Science and Engineering, Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
| | - Darci A. Gatto
- Postgraduate Program in Materials Science and Engineering, Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
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Coldebella R, Gentil M, Berger C, Dalla Costa HW, Pedrazzi C, Labidi J, Delucis RA, Missio AL. Nanofibrillated Cellulose-Based Aerogels Functionalized with Tajuva ( Maclura tinctoria) Heartwood Extract. Polymers (Basel) 2021; 13:polym13060908. [PMID: 33809622 PMCID: PMC8002037 DOI: 10.3390/polym13060908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/12/2021] [Accepted: 03/12/2021] [Indexed: 02/01/2023] Open
Abstract
Aerogels are 3-D nanostructures of non-fluid colloidal interconnected porous networks consisting of loosely packed bonded particles that are expanded throughout their volume by gas and exhibit ultra-low density and high specific surface area. Cellulose-based aerogels can be obtained from hydrogels through a drying process, replacing the solvent (water) with air and keeping the pristine three-dimensional arrangement. In this work, hybrid cellulose-based aerogels were produced and their potential for use as dressings was assessed. Nanofibrilated cellulose (NFC) hydrogels were produced by a co-grinding process in a stone micronizer using a kraft cellulosic pulp and a phenolic extract from Maclura tinctoria (Tajuva) heartwood. NFC-based aerogels were produced by freeze followed by lyophilization, in a way that the Tajuva extract acted as a functionalizing agent. The obtained aerogels showed high porosity (ranging from 97% to 99%) and low density (ranging from 0.025 to 0.040 g·cm-3), as well a typical network and sheet-like structure with 100 to 300 μm pores, which yielded compressive strengths ranging from 60 to 340 kPa. The reached antibacterial and antioxidant activities, percentage of inhibitions and water uptakes suggest that the aerogels can be used as fluid absorbers. Additionally, the immobilization of the Tajuva extract indicates the potential for dentistry applications.
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Affiliation(s)
- Rodrigo Coldebella
- Laboratório de Produtos Florestais (PPGEF), Centro de Ciências Rurais, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil; (R.C.); (M.G.); (C.B.); (H.W.D.C.); (C.P.)
| | - Marina Gentil
- Laboratório de Produtos Florestais (PPGEF), Centro de Ciências Rurais, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil; (R.C.); (M.G.); (C.B.); (H.W.D.C.); (C.P.)
| | - Camila Berger
- Laboratório de Produtos Florestais (PPGEF), Centro de Ciências Rurais, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil; (R.C.); (M.G.); (C.B.); (H.W.D.C.); (C.P.)
| | - Henrique W. Dalla Costa
- Laboratório de Produtos Florestais (PPGEF), Centro de Ciências Rurais, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil; (R.C.); (M.G.); (C.B.); (H.W.D.C.); (C.P.)
| | - Cristiane Pedrazzi
- Laboratório de Produtos Florestais (PPGEF), Centro de Ciências Rurais, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil; (R.C.); (M.G.); (C.B.); (H.W.D.C.); (C.P.)
| | - Jalel Labidi
- Chemical and Environmental Engineering Department, University of the Basque Country (UPV/EHU), Plaza Europa 1, 20018 Donostia-San Sebastián, Guipuzcoa, Spain
- Correspondence: (J.L.); (R.A.D.); (A.L.M.)
| | - Rafael A. Delucis
- Programa de Pós-Graduação em Ciência e Engenharia de Materiais (PPGCEM), Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, 96010-610 Pelotas, Brazil
- Programa de Pós-Graduação em Ciência Ambientais (PPGCAmb), Centro de Engenharias, Universidade Federal de Pelotas, 96010-450 Pelotas, Brazil
- Correspondence: (J.L.); (R.A.D.); (A.L.M.)
| | - André L. Missio
- Programa de Pós-Graduação em Ciência e Engenharia de Materiais (PPGCEM), Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, 96010-610 Pelotas, Brazil
- Programa de Pós-Graduação em Ciência Ambientais (PPGCAmb), Centro de Engenharias, Universidade Federal de Pelotas, 96010-450 Pelotas, Brazil
- Correspondence: (J.L.); (R.A.D.); (A.L.M.)
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Missio AL, Mattos BD, Otoni CG, Gentil M, Coldebella R, Khakalo A, Gatto DA, Rojas OJ. Cogrinding Wood Fibers and Tannins: Surfactant Effects on the Interactions and Properties of Functional Films for Sustainable Packaging Materials. Biomacromolecules 2020; 21:1865-1874. [PMID: 32040921 PMCID: PMC7705888 DOI: 10.1021/acs.biomac.9b01733] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
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We report on the
combination of cellulose nanofibrils (CNFs) and
condensed tannins from Acacia mearnsii for the development
of hybrid, functional films. The tannins are fractionated and concentrated
in polyphenolics that are used for functional components in the hybrid
materials. Cogrinding of wood fibers with the tannins in aqueous media
allows simultaneous fiber deconstruction and in situ binding of tannins on the freshly exposed cellulosic surfaces. Hence,
a tightly bound bicomponent system is produced, which is otherwise
not possible if typical adsorption protocols are followed, mainly
due to the extensive hydration typical of CNFs. A nonionic surfactant
is used to tailor the cellulose–tannin interactions. The proposed
strategy not only enables the incorporation of tannins with CNFs but
also endows a high and prolonged antioxidant effect of films formed
by filtration. Compared to tannin-free films, those carrying tannins
are considerably more hydrophobic. In addition, they show selective
absorption of ultraviolet light while maintaining optical transparency
in the visible range. The proposed simple protocol for incorporating
tannins and surfactants with CNFs is suitable to produce functional
materials. This is possible by understanding associated interfacial
phenomena in the context of sustainable materials within the concept
of the circular bioeconomy.
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Affiliation(s)
- André L Missio
- Laboratório de Produtos Florestais (PPGEF), Centro de Ciências Rurais, Universidade Federal de Santa Maria, P.O. Box 221, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Bruno D Mattos
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, Espoo FI-00076, Finland
| | - Caio G Otoni
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, Espoo FI-00076, Finland
| | - Marina Gentil
- Laboratório de Produtos Florestais (PPGEF), Centro de Ciências Rurais, Universidade Federal de Santa Maria, P.O. Box 221, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Rodrigo Coldebella
- Laboratório de Produtos Florestais (PPGEF), Centro de Ciências Rurais, Universidade Federal de Santa Maria, P.O. Box 221, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Alexey Khakalo
- VTT Technical Research Centre of Finland, P.O. Box 1000, Espoo FI-02044 VTT, Finland
| | - Darci A Gatto
- Laboratório de Produtos Florestais (PPGEF), Centro de Ciências Rurais, Universidade Federal de Santa Maria, P.O. Box 221, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, Espoo FI-00076, Finland.,Departments of Chemical & Biological Engineering, Chemistry, and Wood Science, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
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Cademartori PHG, Missio AL, Mattos BD, Gatto DA. Effect of thermal treatments on technological properties of wood from two Eucalyptus species. AN ACAD BRAS CIENC 2015; 87:471-81. [PMID: 25806991 DOI: 10.1590/0001-3765201520130121] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Accepted: 04/07/2014] [Indexed: 05/28/2023] Open
Abstract
The effect of thermal treatments on physical and mechanical properties of rose gum and Sydney blue gum wood was evaluated. Wood samples were thermally modified in a combination: pre-treatment in an autoclave (127°C - 1h) and treatment in an oven (180-240°C - 4h); and only treatment in an oven at 180-240°C for 4h. Chemical changes in the structure of woods were evaluated through infrared spectroscopy. Evaluation of physical properties was performed through mass loss, specific gravity, equilibrium moisture content and dimensional stability tests. Surface changes were analyzed through apparent contact angle technique and static bending tests were carried out to evaluate the mechanical behavior. Use of pre-treatment in autoclave affected the properties analyzed, however oven, resulted in the highest changes on wood from both species. Chemical changes were related to the degradation of hemicelluloses. Moreover, a significant decrease of hygroscopicity and mechanical strength of thermally modified woods was observed, while specific gravity did not significantly change for either of the species studied. The best results of decrease of wettability were found in low temperatures, while dimensional stability increased as a function of temperature of exposure in oven. The highest loss of mechanical strength was observed at 240°C for both species.
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Affiliation(s)
| | - André L Missio
- Centro de Ciências Rurais, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - Bruno D Mattos
- Centro Politécnico, Universidade Federal do Paraná, Curitiba, PR, Brasil
| | - Darci A Gatto
- Centro de Ciências Rurais, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
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