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Cauquil L, Beaumont M, Schmaltz-Panneau B, Liaubet L, Lippi Y, Naylies C, Bluy L, Poli M, Gress L, Lencina C, Duranthon V, Combes S. Coprophagia in early life tunes expression of immune genes after weaning in rabbit ileum. Sci Rep 2024; 14:8898. [PMID: 38632468 PMCID: PMC11024171 DOI: 10.1038/s41598-024-59591-6] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 04/12/2024] [Indexed: 04/19/2024] Open
Abstract
Coprophagia by suckling rabbits, i.e. ingestion of feces from their mother, reduces mortality after weaning. We hypothesized that this beneficial effect of coprophagia is immune-mediated at the intestinal level. Therefore, this study investigated immune development after weaning by analyzing the ileal transcriptome at day 35 and 49 in rabbits with differential access to coprophagia in early life. Rabbit pups had access between day 1 and 15 to (i) no feces (NF) or (ii) feces from unrelated does (Foreign Feces, FF) or (iii) feces from unrelated does treated with antibiotics (FFab). 350 genes were differentially expressed between day 35 and day 49 in suckling rabbits with access to coprophagia. These genes coded for antimicrobial peptides, a mucin, cytokines and chemokines, pattern recognition receptors, proteins involved in immunoglobulin A secretion and in interferon signaling pathway. Strikingly, prevention of coprophagia or access to feces from antibiotic-treated does in early life blunted immune development between day 35 et 49 in the ileum of rabbits. Thus, coprophagia might be crucial for the maturation of intestinal immunity in rabbits and could explain why this behavior improves survival.
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Affiliation(s)
- L Cauquil
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet-Tolosan, France
| | - M Beaumont
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet-Tolosan, France
| | - B Schmaltz-Panneau
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France
| | - L Liaubet
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet-Tolosan, France
| | - Y Lippi
- Toxalim, Université de Toulouse, INRAE, ENVT, INP-Purpan, Toulouse, France
| | - C Naylies
- Toxalim, Université de Toulouse, INRAE, ENVT, INP-Purpan, Toulouse, France
| | - L Bluy
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet-Tolosan, France
| | - M Poli
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet-Tolosan, France
| | - L Gress
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet-Tolosan, France
| | - C Lencina
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet-Tolosan, France
| | - V Duranthon
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France
| | - S Combes
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet-Tolosan, France.
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Bertholdt C, Morel O, Hossu G, Cherifi A, Beaumont M, Eszto ML. Evaluation of utero-placental vascularization using contrast-enhanced ultrasound: Early first trimester maternal perfusion of the intervillous space is confirmed. Placenta 2024; 148:53-58. [PMID: 38401206 DOI: 10.1016/j.placenta.2024.02.004] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 01/17/2024] [Accepted: 02/12/2024] [Indexed: 02/26/2024]
Abstract
INTRODUCTION The objective was to confirm and semiquantify the maternal perfusion of the intervillous space between 8 and 13 + 6 gestational weeks (GW). METHODS We conducted a prospective, multicenter, and nonrandomized open study. Women undergoing voluntary termination of pregnancy at three different gestational ages (Group 8 GW: 8 to 8 + 6 GW, Group 11GW: 11 to 11 + 6 GW and Group 13GW: 13 to 13 + 6 GW) were included, with 14 subjects per group. Women presenting with a personal risk of preeclampsia and/or intrauterine growth restriction were excluded. Contrast-enhanced ultrasound (CEUS) was performed with an intravenous bolus administration of 2.4 mL of microbubbles. The region of interest (ROI) was the entire placenta. The perfusion curves and kinetic parameters, including wash-in perfusion index, peak enhancement and mean transit time, were calculated. RESULTS Of the 42 women initially included, interpretable perfusion curves could be obtained for 33. Regardless of the gestational age, contrast was observed in the entire placenta. No significant difference in perfusion parameters was observed between groups. There was an association between signal intensity and both maternal heart frequency and placental location. Signal intensity was decreased when the heart frequency increased (p < 0.05) and when the placenta was in a nonanterior position (p > 0.005). DISCUSSION We confirmed the presence of maternal perfusion of the intervillous space as early as 8 GW. No significant increase in perfusion parameters was observed between 8 and 13 + 6 GW. Our observations, in accordance with the previous experiment published by Roberts et al.1, strongly challenge the classic trophoblastic plug theory.
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Affiliation(s)
- C Bertholdt
- Université de Lorraine, CHRU-NANCY, Pôle de la Femme, F-54000, Nancy, France; Université de Lorraine, Inserm, IADI, F-54000, Nancy, France.
| | - O Morel
- Université de Lorraine, CHRU-NANCY, Pôle de la Femme, F-54000, Nancy, France; Université de Lorraine, Inserm, IADI, F-54000, Nancy, France
| | - G Hossu
- Université de Lorraine, Inserm, IADI, F-54000, Nancy, France; CHRU-NANCY, Inserm, Université de Lorraine, CIC, Innovation Technologique, F-54000, Nancy, France
| | - A Cherifi
- CHRU-NANCY, Inserm, Université de Lorraine, CIC, Innovation Technologique, F-54000, Nancy, France
| | - M Beaumont
- Université de Lorraine, Inserm, IADI, F-54000, Nancy, France; CHRU-NANCY, Inserm, Université de Lorraine, CIC, Innovation Technologique, F-54000, Nancy, France
| | - M L Eszto
- Obstetric Department, Metz-Thionville Regional Hospital Center, Mercy Hospital, 1 Allée du Château, 57085, Metz, Cedex 03, France
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Torgbo S, Sukyai P, Sukatta U, Böhmdorfer S, Beaumont M, Rosenau T. Cellulose fibers and ellagitannin-rich extractives from rambutan (Nephelium Lappaceum L.) peel by an eco-friendly approach. Int J Biol Macromol 2024; 259:128857. [PMID: 38143063 DOI: 10.1016/j.ijbiomac.2023.128857] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 12/13/2023] [Accepted: 12/15/2023] [Indexed: 12/26/2023]
Abstract
This study assesses the viability of an accelerated solvent extraction technique employing environmentally friendly solvents to extract ellagitannins while producing cellulose-rich fibers from rambutan peel. Two sequential extraction protocols were investigated: 1) water followed by acetone/water (4:1, v:v), and 2) acetone followed by acetone/water (4:1, v:v), both performed at 50 °C. The first protocol had a higher extraction yield of 51 %, and the obtained extractives featured a higher total phenolic (531.4 ± 22.0 mg-GAE/g) and flavonoid (487.3 ± 16.9 mg-QE/g) than the second protocol (495.4 ± 32.8 mg-GAE/g and 310.6 ± 31.4 mg-QE/g, respectively). The remaining extractive-free fibers were processed by bleaching using either 2 wt% sodium hydroxide with 3 wt% hydrogen peroxide or 4-5 wt% peracetic acid. Considering bleaching efficiency, yield, and process sustainability, the single bleaching treatment with 5 wt% of peracetic acid was selected as the most promising approach to yield cellulose-rich fibers. The samples were analyzed by methanolysis to determine the amount and type of poly- and oligosaccharides and studied by 13C solid-state nuclear magnetic resonance spectroscopy and thermal gravimetric analysis. The products obtained from the peels demonstrate significant potential for use in various sectors, including food, nutraceuticals, cosmetics, and paper production.
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Affiliation(s)
- Selorm Torgbo
- Cellulose for Future Materials and Technologies Special Research Unit, Department of Biotechnology, Kasetsart University, Chatuchak, Bangkok 10900, Thailand
| | - Prakit Sukyai
- Cellulose for Future Materials and Technologies Special Research Unit, Department of Biotechnology, Kasetsart University, Chatuchak, Bangkok 10900, Thailand; Center for Advanced Studies for Agriculture and Food (CASAF), Kasetsart University Institute for Advanced Studies, Kasetsart University, Chatuchak, Bangkok 10900, Thailand.
| | - Udomlak Sukatta
- Kasetsart Agricultural and Agro-Industrial Product Improvement Institute, Kasetsart University, Chatuchak, Bangkok 10900, Thailand
| | - Stefan Böhmdorfer
- Department of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences, Vienna (BOKU), 3430 Tulln, Austria
| | - Marco Beaumont
- Department of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences, Vienna (BOKU), 3430 Tulln, Austria.
| | - Thomas Rosenau
- Department of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences, Vienna (BOKU), 3430 Tulln, Austria
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Dobaj Štiglic A, Lackner F, Nagaraj C, Beaumont M, Bračič M, Duarte I, Kononenko V, Drobne D, Madhan B, Finšgar M, Kargl R, Stana Kleinschek K, Mohan T. 3D-Printed Collagen-Nanocellulose Hybrid Bioscaffolds with Tailored Properties for Tissue Engineering Applications. ACS Appl Bio Mater 2023; 6:5596-5608. [PMID: 38050684 PMCID: PMC10731651 DOI: 10.1021/acsabm.3c00767] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/16/2023] [Accepted: 11/19/2023] [Indexed: 12/06/2023]
Abstract
Hybrid collagen (Coll) bioscaffolds have emerged as a promising solution for tissue engineering (TE) and regenerative medicine. These innovative bioscaffolds combine the beneficial properties of Coll, an important structural protein of the extracellular matrix, with various other biomaterials to create platforms for long-term cell growth and tissue formation. The integration or cross-linking of Coll with other biomaterials increases mechanical strength and stability and introduces tailored biochemical and physical factors that mimic the natural tissue microenvironment. This work reports on the fabrication of chemically cross-linked hybrid bioscaffolds with enhanced properties from the combination of Coll, nanofibrillated cellulose (NFC), carboxymethylcellulose (CMC), and citric acid (CA). The bioscaffolds were prepared by 3D printing ink containing Coll-NFC-CMC-CA followed by freeze-drying, dehydrothermal treatment, and neutralization. Cross-linking through the formation of ester bonds between the polymers and CA in the bioscaffolds was achieved by exposing the bioscaffolds to elevated temperatures in the dry state. The morphology, pores/porosity, chemical composition, structure, thermal behavior, swelling, degradation, and mechanical properties of the bioscaffolds in the dry and wet states were investigated as a function of Coll concentration. The bioscaffolds showed no cytotoxicity to MG-63 human bone osteosarcoma cells as tested by different assays measuring different end points. Overall, the presented hybrid Coll bioscaffolds offer a unique combination of biocompatibility, stability, and structural support, making them valuable tools for TE.
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Affiliation(s)
- Andreja Dobaj Štiglic
- Faculty
of Mechanical Engineering, Laboratory for Characterization and Processing
of Polymers, University of Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia
- Faculty
of Chemistry and Chemical Engineering, Laboratory for Analytical Chemistry
and Industrial Analysis, University of Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia
| | - Florian Lackner
- Institute
of Chemistry and Technology of Biobased System (IBioSys), Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Chandran Nagaraj
- Ludwig
Boltzmann Institute for Lung Vascular Research, Stiftingtalstrasse 24, 8010 Graz, Austria
| | - Marco Beaumont
- Department
of Chemistry, Institute of Chemistry o Renewable Resources, University of Natural Resources and Life Sciences
Vienna (BOKU), A-3430 Tulln, Austria
| | - Matej Bračič
- Faculty
of Mechanical Engineering, Laboratory for Characterization and Processing
of Polymers, University of Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia
| | - Isabel Duarte
- Department
of Mechanical Engineering, Centre for Mechanical Technology and Automation
(TEMA), Intelligent Systems Associate Laboratory (LASI), University of Aveiro, 3810-193 Aveiro, Portugal
| | - Veno Kononenko
- Department
of Biology, Biotechnical Faculty, Večna pot 111, 1000 Ljubljana, Slovenia
| | - Damjana Drobne
- Department
of Biology, Biotechnical Faculty, Večna pot 111, 1000 Ljubljana, Slovenia
| | - Balaraman Madhan
- CSIR-Central
Leather Research Institute, Chennai 600 020, Tamil Nadu, India
| | - Matjaž Finšgar
- Faculty
of Chemistry and Chemical Engineering, Laboratory for Analytical Chemistry
and Industrial Analysis, University of Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia
| | - Rupert Kargl
- Faculty
of Mechanical Engineering, Laboratory for Characterization and Processing
of Polymers, University of Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia
- Institute
of Chemistry and Technology of Biobased System (IBioSys), Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Karin Stana Kleinschek
- Institute
of Chemistry and Technology of Biobased System (IBioSys), Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
- Institute
of Automation, Faculty of Electrical Engineering and Computer Science, University of Maribor, Koroska cesta 46, 2000 Maribor, Slovenia
| | - Tamilselvan Mohan
- Faculty
of Mechanical Engineering, Laboratory for Characterization and Processing
of Polymers, University of Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia
- Institute
of Chemistry and Technology of Biobased System (IBioSys), Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
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Cianciosi A, Simon J, Bartolf-Kopp M, Grausgruber H, Dargaville TR, Forget A, Groll J, Jungst T, Beaumont M. Direct ink writing of multifunctional nanocellulose and allyl-modified gelatin biomaterial inks for the fabrication of mechanically and functionally graded constructs. Carbohydr Polym 2023; 319:121145. [PMID: 37567703 DOI: 10.1016/j.carbpol.2023.121145] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/02/2023] [Accepted: 06/22/2023] [Indexed: 08/13/2023]
Abstract
Recreating the intricate mechanical and functional gradients found in natural tissues through additive manufacturing poses significant challenges, including the need for precise control over time and space and the availability of versatile biomaterial inks. In this proof-of-concept study, we developed a new biomaterial ink for direct ink writing, allowing the creation of 3D structures with tailorable functional and mechanical gradients. Our ink formulation combined multifunctional cellulose nanofibrils (CNFs), allyl-functionalized gelatin (0.8-2.0 wt%), and polyethylene glycol dithiol (3.0-7.5 wt%). The CNF served as a rheology modifier, whereas a concentration of 1.8 w/v % in the inks was chosen for optimal printability and shape fidelity. In addition, CNFs were functionalized with azido groups, enabling the spatial distribution of functional moieties within a 3D structure. These functional groups were further modified using a spontaneous click chemistry reaction. Through additive manufacturing and a readily available static mixer, we successfully demonstrated the fabrication of mechanical gradients - ranging from 3 to 6 kPa in indentation strength - and functional gradients. Additionally, we introduced dual gradients by combining gradient printing with an anisotropic photocrosslinking step. The developed biomaterial ink opens up possibilities for printing intricate multigradient structures, resembling the complex hierarchical organization seen in living tissues.
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Affiliation(s)
- Alessandro Cianciosi
- Department for Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication, University of Würzburg, Pleicherwall 2, Würzburg 97070, Germany
| | - Jonas Simon
- Department of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences (BOKU), Konrad-Lorenz-Str. 24, A-3430 Tulln, Austria
| | - Michael Bartolf-Kopp
- Department for Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication, University of Würzburg, Pleicherwall 2, Würzburg 97070, Germany
| | - Heinrich Grausgruber
- Department of Crop Sciences, University of Natural Resources and Life Sciences (BOKU), Konrad-Lorenz-Str. 24, A-3430 Tulln, Austria
| | - Tim R Dargaville
- ARC Centre for Cell & Tissue Engineering Technologies, Max Planck Queensland Centre for the Materials Science of Extracellular Matrices, QUT Centre for Materials Science, School of Chemistry and Physics, Faculty of Science, Queensland University of Technology (QUT), Brisbane, Australia
| | - Aurélien Forget
- Institute for Macromolecular Chemistry, University of Freiburg, Freiburg 79104, Germany
| | - Jürgen Groll
- Department for Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication, University of Würzburg, Pleicherwall 2, Würzburg 97070, Germany
| | - Tomasz Jungst
- Department for Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication, University of Würzburg, Pleicherwall 2, Würzburg 97070, Germany.
| | - Marco Beaumont
- Department of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences (BOKU), Konrad-Lorenz-Str. 24, A-3430 Tulln, Austria.
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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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Beaumont M, Latiers AC, Prieur G. [The role of the physiotherapist in the assessment and management of dyspnea]. Rev Mal Respir 2023; 40:169-187. [PMID: 36682956 DOI: 10.1016/j.rmr.2022.12.016] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 12/20/2022] [Indexed: 01/21/2023]
Abstract
The role of the physiotherapist in the assessment and management of dyspnea. Dyspnea is the most common symptom in cardio-respiratory diseases. Recently improved comprehension of dyspnea mechanisms have underlined the need for three-faceted assessment. The three key aspects correspond to the "breathing, thinking, functioning" clinical model, which proposes a multidimensional - respiratory, emotional and functional - approach. Before initiating treatment, it is essential for several reasons to assess each specific case, determining the type of dyspnea affecting the patient, appraising the impact of shortness of breath, and estimating the effectiveness of the treatment applied. The physiotherapist has a major role to assume in the care of dyspneic patients, not only in assessment followed by treatment but also as a major collaborator in a multidisciplinary team, especially with regard to pulmonary rehabilitation. The aim of this review is to inventory the existing assessment tools and the possible physiotherapies for dyspnea, using a holistic approach designed to facilitate the choice of techniques and to improve quality of care by fully addressing the patient's needs.
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Affiliation(s)
- M Beaumont
- Service de réadaptation respiratoire, Centre Hospitalier des Pays de Morlaix, Morlaix, France; Inserm, Univ Brest, CHRU Brest, UMR 1304, GETBO, Brest, France.
| | - A C Latiers
- Service ORL, Stomatologie et Soins Continus, Cliniques universitaires Saint-Luc, 1200 Brussels, Belgique
| | - G Prieur
- Institut de Recherche Expérimentale et Clinique (IREC), Pôle de Pneumologie, ORL & Dermatologie, Groupe de Recherche en Kinésithérapie Respiratoire, Université Catholique de Louvain, 1200 Brussels, Belgique; Université de Normandie, UNIROUEN, EA3830-GRHV, 76000 Rouen, France; Groupe Hospitalier du Havre, Service de pneumologie et de réadaptation respiratoire, avenue Pierre Mendes France, 76290 Montivilliers, France; Institut de Recherche et Innovation en Biomédecine (IRIB), 76000 Rouen, France
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8
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Solin K, Beaumont M, Borghei M, Orelma H, Mertens P, Rojas OJ. Immobilized cellulose nanospheres enable rapid antigen detection in lateral flow immunoassays. Cellulose (Lond) 2023; 30:2353-2365. [PMID: 36624885 PMCID: PMC9813465 DOI: 10.1007/s10570-022-05038-y] [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] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
UNLABELLED Rapid diagnostic systems are essential in controlling the spread of viral pathogens and efficient patient management. The available technologies for low-cost viral antigen testing have several limitations, including a lack of accuracy and sensitivity. Here, we introduce a platform based on cellulose II nanoparticles (oppositely charged NPan and NPcat) for effective control of surface protein interactions, leading to rapid and sensitive antigen tests. Passivation against non-specific adsorption and augmented immobilization of sensing antibodies is achieved by adjusting the electrostatic charge of the nanoparticles. The interactions affecting the performance of the system are investigated by microgravimetry and confocal imaging. As a proof-of-concept test, SARS-CoV-2 nucleocapsid sensing was carried out by using saliva-wicking by channels that were stencil-printed on paper. We conclude that inkjet-printed NPcat elicits strong optical signals, visible after a few minutes, opening the opportunity for cost-effective and rapid diagnostic. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10570-022-05038-y.
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Affiliation(s)
- Katariina Solin
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, 00076 Espoo, Finland
- VTT Technical Research Centre of Finland Ltd., Tietotie 4E, 02044 Espoo, Finland
| | - Marco Beaumont
- Department of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Konrad-Lorenz-Straße 24, 3430 Tulln, Austria
| | - Maryam Borghei
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, 00076 Espoo, Finland
| | - Hannes Orelma
- VTT Technical Research Centre of Finland Ltd., Tietotie 4E, 02044 Espoo, Finland
| | - Pascal Mertens
- Coris BioConcept, Rue Jean Sonet 4A, 5032 Gembloux, Belgium
| | - Orlando J. Rojas
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, 00076 Espoo, Finland
- The Bioproducts Institute, Departments of Chemical and Biological Engineering, Chemistry and Wood Science, University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z4 Canada
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Heise K, Koso T, King AWT, Nypelö T, Penttilä P, Tardy BL, Beaumont M. Spatioselective surface chemistry for the production of functional and chemically anisotropic nanocellulose colloids. J Mater Chem A Mater 2022; 10:23413-23432. [PMID: 36438677 PMCID: PMC9664451 DOI: 10.1039/d2ta05277f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
Maximizing the benefits of nanomaterials from biomass requires unique considerations associated with their native chemical and physical structure. Both cellulose nanofibrils and nanocrystals are extracted from cellulose fibers via a top-down approach and have significantly advanced materials chemistry and set new benchmarks in the last decade. One major challenge has been to prepare defined and selectively modified nanocelluloses, which would, e.g., allow optimal particle interactions and thereby further improve the properties of processed materials. At the molecular and crystallite level, the surface of nanocelluloses offers an alternating chemical structure and functional groups of different reactivity, enabling straightforward avenues towards chemically anisotropic and molecularly patterned nanoparticles via spatioselective chemical modification. In this review, we will explain the influence and role of the multiscale hierarchy of cellulose fibers in chemical modifications, and critically discuss recent advances in selective surface chemistry of nanocelluloses. Finally, we will demonstrate the potential of those chemically anisotropic nanocelluloses in materials science and discuss challenges and opportunities in this field.
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Affiliation(s)
- Katja Heise
- Department of Bioproducts and Biosystems, Aalto University P.O. Box 16300 FI-00076 Aalto Espoo Finland
| | - Tetyana Koso
- Materials Chemistry Division, Chemistry Department, University of Helsinki FI-00560 Helsinki Finland
| | - Alistair W T King
- VTT Technical Research Centre of Finland Ltd., Biomaterial Processing and Products 02044 Espoo Finland
| | - Tiina Nypelö
- Chalmers University of Technology 41296 Gothenburg Sweden
- Wallenberg Wood Science Center, Chalmers University of Technology 41296 Gothenburg Sweden
| | - Paavo Penttilä
- Department of Bioproducts and Biosystems, Aalto University P.O. Box 16300 FI-00076 Aalto Espoo Finland
| | - Blaise L Tardy
- Khalifa University, Department of Chemical Engineering Abu Dhabi United Arab Emirates
- Center for Membrane and Advanced Water Technology, Khalifa University Abu Dhabi United Arab Emirates
- Research and Innovation Center on CO2 and Hydrogen, Khalifa University Abu Dhabi United Arab Emirates
| | - Marco Beaumont
- Institute of Chemistry of Renewable Resources, Department of Chemistry, University of Natural Resources and Life Sciences Vienna (BOKU), Konrad-Lorenz-Str. 24 A-3430 Tulln Austria
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10
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Torgbo S, Sukyai P, Khantayanuwong S, Puangsin B, Srichola P, Sukatta U, Kamonpatana P, Beaumont M, Rosenau T. Assessment of Electrothermal Pretreatment of Rambutan ( Nephelium lappaceum L.) Peels for Producing Cellulose Fibers. ACS Omega 2022; 7:39975-39984. [PMID: 36385815 PMCID: PMC9648145 DOI: 10.1021/acsomega.2c04551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 09/16/2022] [Indexed: 06/16/2023]
Abstract
Agroindustrial wastes are renewable sources and the most promising sustainable alternative to lignocellulosic biomass for cellulose production. This study assessed the electrothermal pretreatment of rambutan peel (RP) for producing cellulose fibers. The pretreatment was carried out by Ohmic heating at a solid-to-liquid ratio of 1:10 (w/v) in a water/ethanol (1:1, v/v) mixture as the electrical transmission medium at 60 ± 1 °C for different holding times (15, 30, and 60 min). Ohmic heating did not significantly influence the total fiber yield for the various holding times. However, the compositions of the samples in terms of extractives, lignin, hemicellulose, and α-cellulose content were significantly influenced. In addition, the electrothermal pretreatment method reduced the bleaching time of RP by 25%. The pretreated fibers were thermally stable up to 240 °C. Ohmic heating pretreatment times of 15 and 30 min were found most promising, reducing the required bleaching chemicals and increasing the α-cellulose yield. The pretreated bleached cellulose fibers had similar properties to nontreated bleached fibers and could be efficiently processed into stable gels of strong shear-thinning behavior with potential application as rheology modifiers in food products. Our results demonstrate that rambutan peel could serve as a promising sustainable alternative to woody biomass for cellulose production. Ohmic heating meets the requirements for industrial applications as it is eco-friendly, improves the efficiency and energy consumption in fiber processing, and could as well be included in the processing of similar food wastes.
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Affiliation(s)
- Selorm Torgbo
- Cellulose
for Future Materials and Technologies Special Research Unit, Kasetsart University, Chatuchak, Bangkok10900, Thailand
| | - Prakit Sukyai
- Cellulose
for Future Materials and Technologies Special Research Unit, Kasetsart University, Chatuchak, Bangkok10900, Thailand
- Center
for
Advanced Studies for Agriculture and Food (CASAF), Kasetsart University
Institute for Advanced Studies, Kasetsart
University, Chatuchak, Bangkok10900, Thailand
| | - Somwang Khantayanuwong
- Department
of Forest Products, Faculty of Forestry, Kasetsart University, Chatuchak, Bangkok10900, Thailand
| | - Buapan Puangsin
- Department
of Forest Products, Faculty of Forestry, Kasetsart University, Chatuchak, Bangkok10900, Thailand
| | - Preeyanuch Srichola
- Kasetsart
Agricultural and Agro-Industrial Product Improvement Institute, Kasetsart University,
Chatuchak, Bangkok10900, Thailand
| | - Udomlak Sukatta
- Kasetsart
Agricultural and Agro-Industrial Product Improvement Institute, Kasetsart University,
Chatuchak, Bangkok10900, Thailand
| | - Pitiya Kamonpatana
- Department
of Food Science and Technology, Faculty of Agro-Industry, Kasetsart University,
Chatuchak, Bangkok10900, Thailand
| | - Marco Beaumont
- Department
of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences
Vienna (BOKU), 3430Tulln, Austria
| | - Thomas Rosenau
- Department
of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences
Vienna (BOKU), 3430Tulln, Austria
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11
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Hartmann R, Beaumont M, Pasquie E, Rosenau T, Serna-Guerrero R. N-Alkylated Chitin Nanocrystals as a Collector in Malachite Flotation. ACS Sustain Chem Eng 2022; 10:10570-10578. [PMID: 35991757 PMCID: PMC9382668 DOI: 10.1021/acssuschemeng.2c01978] [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] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 07/27/2022] [Indexed: 06/15/2023]
Abstract
The majority of reagents currently used in mineral flotation processes are fossil-based and potentially harmful to the environment. Therefore, it is necessary to find environmentally-friendly alternatives to reduce the impact of mineral processing activities. Chitin nanocrystals are a renewable resource that, due to the natural presence of amino groups on its surface, represents a promising collector for various minerals of economic relevance. This study examines the one-pot functionalization of chitin nanocrystals with aldehyde structures to obtain hydrophobized colloids suitable for mineral flotation. The chemical properties of these nano-colloids were investigated by nuclear magnetic resonance spectroscopy, their colloidal behavior and structure by electrophoretic light scattering and atomic force microscopy, and their wettability through water contact angle measurements. The functionalized N-alkylated chitin nanocrystals possessed a hydrophobic character, were able to dress mineral particles and featured a performance in the flotation of malachite similar to commercial collectors, which proves the high potential of chitin nanocrystals in this field of application.
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Affiliation(s)
- Robert Hartmann
- Department
of Chemical and Metallurgical Engineering, School of Chemical Engineering, Aalto University, P.O.
Box 12200, FIN-00076 Espoo, Finland
- Fraunhofer
Center for Chemical-Biotechnological Processes, D-06237 Leuna, Germany
| | - Marco Beaumont
- Department
of Chemistry, Institute for Chemistry of Renewable Resources, University of Natural Resources and Life Science, A-3430 Tulln, Austria
| | - Eva Pasquie
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FIN-00076 Espoo, Finland
- Université
Grenoble Alpes, CNRS, Grenoble INP (Institute of Engineering), LGP2, F-38000 Grenoble, France
| | - Thomas Rosenau
- Department
of Chemistry, Institute for Chemistry of Renewable Resources, University of Natural Resources and Life Science, A-3430 Tulln, Austria
| | - Rodrigo Serna-Guerrero
- Department
of Chemical and Metallurgical Engineering, School of Chemical Engineering, Aalto University, P.O.
Box 12200, FIN-00076 Espoo, Finland
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12
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Missio A, Otoni CG, Zhao B, Beaumont M, Khakalo A, Kämäräinen T, Silva SHF, Mattos BD, Rojas OJ. Nanocellulose Removes the Need for Chemical Crosslinking in Tannin-Based Rigid Foams and Enhances Their Strength and Fire Retardancy. ACS Sustain Chem Eng 2022; 10:10303-10310. [PMID: 35966391 PMCID: PMC9364407 DOI: 10.1021/acssuschemeng.2c02678] [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] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/14/2022] [Indexed: 06/15/2023]
Abstract
Thermal insulation and fire protection are two of the most critical features affecting energy efficiency and safety in built environments. Together with the associated environmental footprint, there is a strong need to consider new insulation materials. Tannin rigid foams have been proposed as viable and sustainable alternatives to expanded polyurethanes, traditionally used in building enveloping. Tannin foams structure result from polymerization with furfuryl alcohol via self-expanding. We further introduce cellulose nanofibrils (CNFs) as a reinforcing agent that eliminates the need for chemical crosslinking during foam formation. CNF forms highly entangled and interconnected nanonetworks, at solid fractions as low as 0.1 wt %, enabling the formation of foams that are ca. 30% stronger and ca. 25% lighter compared to those produced with formaldehyde, currently known as one of the best performers in chemically coupling tannin and furfuryl alcohol. Compared to the those chemically crosslinked, our CNF-reinforced tannin foams display higher thermal degradation temperature (peak shifted upward, by 30-50 °C) and fire resistance (40% decrease in mass loss). Furthermore, we demonstrate partially hydrophobized CNF to tailor the foam microstructure and derived physical-mechanical properties. In sum, green and sustainable foams, stronger, lighter, and more resistant to fire are demonstrated compared to those produced by formaldehyde crosslinking.
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Affiliation(s)
- André
Luiz Missio
- Graduate
Program in 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
| | - Bin Zhao
- Department
of Bioproducts and Biosystems, School of
Chemical Engineering, Aalto University, Vuorimiehentie 1, Espoo FI-00076, Finland
| | - 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
| | - Alexey Khakalo
- VTT
Technical Research Centre of Finland, P.O. Box 1000, Espoo FI-02044, Finland
| | - Tero Kämäräinen
- Department
of Bioproducts and Biosystems, School of
Chemical Engineering, Aalto University, Vuorimiehentie 1, Espoo FI-00076, Finland
| | - Silvia H. F. Silva
- Graduate
Program in Materials Science and Engineering (PPGCEM), Federal University of Pelotas (UFPel), Gomes Carneiro 1, Pelotas, RS 96010-610, Brazil
| | - Bruno D. Mattos
- Department
of Bioproducts and Biosystems, School of
Chemical Engineering, Aalto University, Vuorimiehentie 1, Espoo FI-00076, Finland
| | - Orlando J. Rojas
- Department
of Bioproducts and Biosystems, School of
Chemical Engineering, Aalto University, Vuorimiehentie 1, Espoo FI-00076, 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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13
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Dupont A, Hossu G, Cherifi A, Beaumont M, Mandry D, Poussel M. From training to overtraining: The necessity of an integrated approach. Sci Sports 2022. [DOI: 10.1016/j.scispo.2021.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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14
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Koso T, Beaumont M, Tardy BL, Rico Del Cerro D, Eyley S, Thielemans W, Rojas OJ, Kilpeläinen I, King AWT. Highly regioselective surface acetylation of cellulose and shaped cellulose constructs in the gas-phase. Green Chem 2022; 24:5604-5613. [PMID: 35924208 PMCID: PMC9290444 DOI: 10.1039/d2gc01141g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 06/20/2022] [Indexed: 06/01/2023]
Abstract
Gas-phase acylation is an attractive and sustainable method for modifying the surface properties of cellulosics. However, little is known concerning the regioselectivity of the chemistry, i.e., which cellulose hydroxyls are preferentially acylated and if acylation can be restricted to the surface, preserving crystallinities/morphologies. Consequently, we reexplore simple gas-phase acetylation of modern-day cellulosic building blocks - cellulose nanocrystals, pulps, dry-jet wet spun (regenerated cellulose) fibres and a nanocellulose-based aerogel. Using advanced analytics, we show that the gas-phase acetylation is highly regioselective for the C6-OH, a finding also supported by DFT-based transition-state modelling on a crystalloid surface. This contrasts with acid- and base-catalysed liquid-phase acetylation methods, highlighting that gas-phase chemistry is much more controllable, yet with similar kinetics, to the uncatalyzed liquid-phase reactions. Furthermore, this method preserves both the native (or regenerated) crystalline structure of the cellulose and the supramolecular morphology of even delicate cellulosic constructs (nanocellulose aerogel exhibiting chiral cholesteric liquid crystalline phases). Due to the soft nature of this chemistry and an ability to finely control the kinetics, yielding highly regioselective low degree of substitution products, we are convinced this method will facilitate the rapid adoption of precisely tailored and biodegradable cellulosic materials.
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Affiliation(s)
- Tetyana Koso
- Department of Chemistry, University of Helsinki AI Virtasen aukio 1 00560 Helsinki Finland
| | - Marco Beaumont
- Department of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU) Tulln Austria
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University Espoo Finland
| | - Blaise L Tardy
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University Espoo Finland
| | - Daniel Rico Del Cerro
- Department of Chemistry, University of Helsinki AI Virtasen aukio 1 00560 Helsinki Finland
| | - Samuel Eyley
- Sustainable Materials Lab, Department of Chemical Engineering, KU Leuven Campus Kortrijk Etienne Sabbelaan 53 8500 Kortrijk Belgium
| | - Wim Thielemans
- Sustainable Materials Lab, Department of Chemical Engineering, KU Leuven Campus Kortrijk Etienne Sabbelaan 53 8500 Kortrijk Belgium
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University Espoo Finland
- Bioproducts Institute, Departments of Chemical and Biological Engineering, Chemistry and Wood Science, University of British Columbia Vancouver BC Canada
| | - Ilkka Kilpeläinen
- Department of Chemistry, University of Helsinki AI Virtasen aukio 1 00560 Helsinki Finland
| | - Alistair W T King
- Department of Chemistry, University of Helsinki AI Virtasen aukio 1 00560 Helsinki Finland
- VTT Technical Research Centre of Finland Ltd Tietotie 4e 02150 Espoo Finland
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15
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Bertholdt C, Dap M, Pillot R, Chavatte-Palmer P, Morel O, Beaumont M. Assessment of placental perfusion using contrast-enhanced ultrasound: A longitudinal study in pregnant rabbit. Theriogenology 2022; 187:135-140. [DOI: 10.1016/j.theriogenology.2022.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 05/05/2022] [Accepted: 05/05/2022] [Indexed: 11/15/2022]
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16
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Reychler G, Beaumont M, Contal O, Georges M. La kinésithérapie respiratoire en 2022 : une approche multimodale. Rev Mal Respir 2022; 39:319-320. [DOI: 10.1016/j.rmr.2022.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 03/24/2022] [Indexed: 10/18/2022]
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17
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Völkel L, Beaumont M, Johansson LS, Czibula C, Rusakov D, Mautner A, Teichert C, Kontturi E, Rosenau T, Potthast A. Assessing Fire-Damage in Historical Papers and Alleviating Damage with Soft Cellulose Nanofibers. Small 2022; 18:e2105420. [PMID: 35119202 DOI: 10.1002/smll.202105420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 12/01/2021] [Indexed: 06/14/2023]
Abstract
The conservation of historical paper objects with high cultural value is an important societal task. Papers that have been severely damaged by fire, heat, and extinguishing water, are a particularly challenging case, because of the complexity and severity of damage patterns. In-depth analysis of fire-damaged papers, by means of examples from the catastrophic fire in a 17th-century German library, shows the changes, which proceeded from the margin to the center, to go beyond surface charring and formation of hydrophobic carbon-rich layers. The charred paper exhibits structural changes in the nano- and micro-range, with increased porosity and water sorption. In less charred areas, cellulose is affected by both chain cleavage and cross-linking. Based on these results and conclusions with regard to adhesion of auxiliaries, a stabilization method is developed, which coats the damaged paper with a thin layer of cellulose nanofibers. It enables the reliable preservation of the paper and-most importantly-retrieval of the contained historical information: the nanofibers form a flexible, transparent film on the surface and adhere strongly to the damaged matrix, greatly reducing its fragility, giving it stability, and enabling digitization and further handling.
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Affiliation(s)
- Laura Völkel
- Department of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences, Vienna, Konrad-Lorenz-Strasse 24, Tulln, A-3430, Austria
- Department of Conservation and Special Collections, Herzogin Anna Amalia Bibliothek / Klassik Stiftung Weimar, Platz der Demokratie 1, 99423, Weimar, Germany
| | - Marco Beaumont
- Department of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences, Vienna, Konrad-Lorenz-Strasse 24, Tulln, A-3430, Austria
| | - Leena-Sisko Johansson
- Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, Aalto, 00076, Finland
| | - Caterina Czibula
- Institute of Physics, Montanuniversität Leoben, Franz Josef Straße 18, Leoben, 8700, Austria
- Institute of Bioproducts and Paper Technology, Graz University of Technology, Inffeldgasse 3, Graz, 8010, Austria
| | - Dmitrii Rusakov
- Department of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences, Vienna, Konrad-Lorenz-Strasse 24, Tulln, A-3430, Austria
| | - Andreas Mautner
- Department of Materials Chemistry, University of Vienna, Währinger Straße 42, Vienna, 1090, Austria
| | - Christian Teichert
- Institute of Physics, Montanuniversität Leoben, Franz Josef Straße 18, Leoben, 8700, Austria
| | - Eero Kontturi
- Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, Aalto, 00076, Finland
| | - Thomas Rosenau
- Department of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences, Vienna, Konrad-Lorenz-Strasse 24, Tulln, A-3430, Austria
| | - Antje Potthast
- Department of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences, Vienna, Konrad-Lorenz-Strasse 24, Tulln, A-3430, Austria
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18
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Beaumont M, Jahn E, Mautner A, Veigel S, Böhmdorfer S, Potthast A, Gindl-Altmutter W, Rosenau T. Facile Preparation of Mechanically Robust and Functional Silica/Cellulose Nanofiber Gels Reinforced with Soluble Polysaccharides. Nanomaterials (Basel) 2022; 12:895. [PMID: 35335708 PMCID: PMC8949125 DOI: 10.3390/nano12060895] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/02/2022] [Accepted: 03/03/2022] [Indexed: 12/18/2022]
Abstract
Nanoporous silica gels feature extremely large specific surface areas and high porosities and are ideal candidates for adsorption-related processes, although they are commonly rather fragile. To overcome this obstacle, we developed a novel, completely solvent-free process to prepare mechanically robust CNF-reinforced silica nanocomposites via the incorporation of methylcellulose and starch. Significantly, the addition of starch was very promising and substantially increased the compressive strength while preserving the specific surface area of the gels. Moreover, different silanes were added to the sol/gel process to introduce in situ functionality to the CNF/silica hydrogels. Thereby, CNF/silica hydrogels bearing carboxyl groups and thiol groups were produced and tested as adsorber materials for heavy metals and dyes. The developed solvent-free sol/gel process yielded shapable 3D CNF/silica hydrogels with high mechanical strength; moreover, the introduction of chemical functionalities further widens the application scope of such materials.
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Affiliation(s)
- Marco Beaumont
- Department of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences Vienna, Konrad-Lorenz-Straße 24, 3430 Tulln, Austria; (E.J.); (S.B.); (A.P.)
| | - Elisabeth Jahn
- Department of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences Vienna, Konrad-Lorenz-Straße 24, 3430 Tulln, Austria; (E.J.); (S.B.); (A.P.)
| | - Andreas Mautner
- Faculty of Chemistry, Institute of Materials Chemistry and Research, Polymer and Composite Engineering (PaCE) Group, University of Vienna, Währinger Street 42, 1090 Vienna, Austria;
| | - Stefan Veigel
- Department of Material Sciences and Process Engineering, Institute of Wood Technology and Renewable Materials, University of Natural Resources and Life Sciences Vienna, Konrad-Lorenz-Straße 24, 3430 Tulln, Austria; (S.V.); (W.G.-A.)
| | - Stefan Böhmdorfer
- Department of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences Vienna, Konrad-Lorenz-Straße 24, 3430 Tulln, Austria; (E.J.); (S.B.); (A.P.)
| | - Antje Potthast
- Department of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences Vienna, Konrad-Lorenz-Straße 24, 3430 Tulln, Austria; (E.J.); (S.B.); (A.P.)
| | - Wolfgang Gindl-Altmutter
- Department of Material Sciences and Process Engineering, Institute of Wood Technology and Renewable Materials, University of Natural Resources and Life Sciences Vienna, Konrad-Lorenz-Straße 24, 3430 Tulln, Austria; (S.V.); (W.G.-A.)
| | - Thomas Rosenau
- Department of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences Vienna, Konrad-Lorenz-Straße 24, 3430 Tulln, Austria; (E.J.); (S.B.); (A.P.)
- Johan Gadolin Process Chemistry Centre, Åbo Akademi University, Porthansgatan 3, FI-20500 Turku, Finland
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19
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Abidnejad R, Beaumont M, Tardy BL, Mattos BD, Rojas OJ. Superstable Wet Foams and Lightweight Solid Composites from Nanocellulose and Hydrophobic Particles. ACS Nano 2021; 15:19712-19721. [PMID: 34784178 PMCID: PMC8717629 DOI: 10.1021/acsnano.1c07084] [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] [Indexed: 05/11/2023]
Abstract
Colloids are suitable options to replace surfactants in the formation of multiphase systems while simultaneously achieving performance benefits. We introduce synergetic combination of colloids for the interfacial stabilization of complex fluids that can be converted into lightweight materials. The strong interactions between high aspect ratio and hydrophilic fibrillated cellulose (CNF) with low aspect ratio hydrophobic particles afford superstable Pickering foams. The foams were used as a scaffolding precursor of porous, solid materials. Compared to foams stabilized by the hydrophobic particles alone, the introduction of CNF significantly increased the foamability (by up to 350%) and foam lifetime. These effects are ascribed to the fibrillar network formed by CNF. The CNF solid fraction regulated the interparticle interactions in the wet foam, delaying or preventing drainage, coarsening, and bubble coalescence. Upon drying, such a complex fluid was transformed into lightweight and strong architectures, which displayed properties that depended on the surface energy of the CNF precursor. We show that CNF combined with hydrophobic particles universally forms superstable complex fluids that can be used as a processing route to synthesize strong composites and lightweight structures.
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Affiliation(s)
- Roozbeh Abidnejad
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Marco Beaumont
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
- Department
of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences, 3430 Tulln, Austria
| | - Blaise L. Tardy
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Bruno D. Mattos
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Orlando J. Rojas
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
- Bioproducts
Institute, Department of Chemical and Biological Engineering, Department
of Chemistry and Department of Wood Science, University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z4, Canada
- or
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20
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Tardy BL, Mattos BD, Otoni CG, Beaumont M, Majoinen J, Kämäräinen T, Rojas OJ. Deconstruction and Reassembly of Renewable Polymers and Biocolloids into Next Generation Structured Materials. Chem Rev 2021; 121:14088-14188. [PMID: 34415732 PMCID: PMC8630709 DOI: 10.1021/acs.chemrev.0c01333] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Indexed: 12/12/2022]
Abstract
This review considers the most recent developments in supramolecular and supraparticle structures obtained from natural, renewable biopolymers as well as their disassembly and reassembly into engineered materials. We introduce the main interactions that control bottom-up synthesis and top-down design at different length scales, highlighting the promise of natural biopolymers and associated building blocks. The latter have become main actors in the recent surge of the scientific and patent literature related to the subject. Such developments make prominent use of multicomponent and hierarchical polymeric assemblies and structures that contain polysaccharides (cellulose, chitin, and others), polyphenols (lignins, tannins), and proteins (soy, whey, silk, and other proteins). We offer a comprehensive discussion about the interactions that exist in their native architectures (including multicomponent and composite forms), the chemical modification of polysaccharides and their deconstruction into high axial aspect nanofibers and nanorods. We reflect on the availability and suitability of the latter types of building blocks to enable superstructures and colloidal associations. As far as processing, we describe the most relevant transitions, from the solution to the gel state and the routes that can be used to arrive to consolidated materials with prescribed properties. We highlight the implementation of supramolecular and superstructures in different technological fields that exploit the synergies exhibited by renewable polymers and biocolloids integrated in structured materials.
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Affiliation(s)
- Blaise L. Tardy
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Bruno D. Mattos
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Caio G. Otoni
- Department
of Physical Chemistry, Institute of Chemistry, University of Campinas, P.O. Box 6154, Campinas, São Paulo 13083-970, Brazil
- Department
of Materials Engineering, Federal University
of São Carlos, Rod. Washington Luís, km 235, São
Carlos, São Paulo 13565-905, Brazil
| | - Marco Beaumont
- School
of Chemistry and Physics, Queensland University
of Technology, 2 George
Street, Brisbane, Queensland 4001, Australia
- Department
of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences, Vienna, A-3430 Tulln, Austria
| | - Johanna Majoinen
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Tero Kämäräinen
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Orlando J. Rojas
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
- Bioproducts
Institute, Department of Chemical and Biological Engineering, Department
of Chemistry and Department of Wood Science, University of British Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z4, Canada
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21
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Beaumont M, Tardy BL, Reyes G, Koso TV, Schaubmayr E, Jusner P, King AWT, Dagastine RR, Potthast A, Rojas OJ, Rosenau T. Assembling Native Elementary Cellulose Nanofibrils via a Reversible and Regioselective Surface Functionalization. J Am Chem Soc 2021; 143:17040-17046. [PMID: 34617737 PMCID: PMC8532154 DOI: 10.1021/jacs.1c06502] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Indexed: 01/10/2023]
Abstract
Selective surface modification of biobased fibers affords effective individualization and functionalization into nanomaterials, as exemplified by the TEMPO-mediated oxidation. However, such a route leads to changes of the native surface chemistry, affecting interparticle interactions and limiting the development of potential supermaterials. Here we introduce a methodology to extract elementary cellulose fibrils by treatment of biomass with N-succinylimidazole, achieving regioselective surface modification of C6-OH, which can be reverted using mild post-treatments. No polymer degradation, cross-linking, nor changes in crystallinity occur under the mild processing conditions, yielding cellulose nanofibrils bearing carboxyl moieties, which can be removed by saponification. The latter offers a significant opportunity in the reconstitution of the chemical and structural interfaces associated with the native states. Consequently, 3D structuring of native elementary cellulose nanofibrils is made possible with the same supramolecular features as the biosynthesized fibers, which is required to unlock the full potential of cellulose as a sustainable building block.
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Affiliation(s)
- Marco Beaumont
- Department
of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences,
Vienna, Konrad-Lorenz-Str. 24, 3430 Tulln, Austria
| | - Blaise L. Tardy
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, Espoo FI-00076, Finland
| | - Guillermo Reyes
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, Espoo FI-00076, Finland
| | - Tetyana V. Koso
- Materials
Chemistry Division, Department of Chemistry, University of Helsinki, AI Virtasen aukio 1, FI-00560 Helsinki, Finland
| | - Elisabeth Schaubmayr
- Department
of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences,
Vienna, Konrad-Lorenz-Str. 24, 3430 Tulln, Austria
| | - Paul Jusner
- Department
of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences,
Vienna, Konrad-Lorenz-Str. 24, 3430 Tulln, Austria
| | - Alistair W. T. King
- Materials
Chemistry Division, Department of Chemistry, University of Helsinki, AI Virtasen aukio 1, FI-00560 Helsinki, Finland
| | - Raymond R. Dagastine
- Department
of Chemical & Biomolecular Engineering, The University of Melbourne, Grattan Street, Parkville, Victoria 3010, Australia
| | - Antje Potthast
- Department
of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences,
Vienna, Konrad-Lorenz-Str. 24, 3430 Tulln, Austria
| | - Orlando J. Rojas
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, Espoo FI-00076, Finland
- Bioproducts
Institute, Department of Chemical & Biological Engineering, Department
of Chemistry and Department of Wood Science, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Thomas Rosenau
- Department
of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences,
Vienna, Konrad-Lorenz-Str. 24, 3430 Tulln, Austria
- Johan
Gadolin Process Chemistry Centre, Åbo
Akademi University, Porthansgatan
3, Åbo/Turku FI-20500, Finland
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22
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Abstract
Ultrasound imaging is a vital tool for exploring in vivo the placental function which is essential to understand pathological phenomena such as preeclampsia or intrauterine growth restriction. As technology advances including ready availability of three-dimensional (3D) probes and novel software, new markers of placental function become possible. The objective of this review was to provide an overview of the new ultrasound markers of placental function with a focus on the potential clinical application of three-dimensional power Doppler (3DPD). A broad-free text literature search was undertaken based on human placental studies and sixty full-text studies were included in this review. Three-dimensional power Doppler is a promising technique to predict preeclampsia in the first trimester. However, the influence of external factors such as body mass index, parameter standardisation and machine settings still need to be addressed. Contrast-enhanced ultrasound is currently reserved for research, because the required injected contrast mediums are not currently approved for use in pregnancy, although the safety data is reassuring.
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Affiliation(s)
- C Bertholdt
- Université de Lorraine, CHRU-Nancy, Pôle de Gynécologie-Obstétrique, F-54000 Nancy, France; Université de Lorraine, Inserm, IADI, F-54000 Nancy, France.
| | - M Dap
- Université de Lorraine, CHRU-Nancy, Pôle de Gynécologie-Obstétrique, F-54000 Nancy, France
| | - M Beaumont
- CHRU-Nancy, Inserm, Université de Lorraine, CIC, Innovation Technologique, F-54000 Nancy, France
| | - J Duan
- Hubei Clinical Research Center for Prenatal Diagnosis and Birth Health, Hubei, 430071, China; Gynecology and Obstetrical Service, Zhongnan Hospital of Wuhan University, Hubei, 430071, China
| | - O Morel
- Université de Lorraine, CHRU-Nancy, Pôle de Gynécologie-Obstétrique, F-54000 Nancy, France; Université de Lorraine, Inserm, IADI, F-54000 Nancy, France
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23
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Otoni CG, Azeredo HMC, Mattos BD, Beaumont M, Correa DS, Rojas OJ. The Food-Materials Nexus: Next Generation Bioplastics and Advanced Materials from Agri-Food Residues. Adv Mater 2021; 33:e2102520. [PMID: 34510571 DOI: 10.1002/adma.202102520] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 06/14/2021] [Indexed: 06/13/2023]
Abstract
The most recent strategies available for upcycling agri-food losses and waste (FLW) into functional bioplastics and advanced materials are reviewed and the valorization of food residuals are put in perspective, adding to the water-food-energy nexus. Low value or underutilized biomass, biocolloids, water-soluble biopolymers, polymerizable monomers, and nutrients are introduced as feasible building blocks for biotechnological conversion into bioplastics. The latter are demonstrated for their incorporation in multifunctional packaging, biomedical devices, sensors, actuators, and energy conversion and storage devices, contributing to the valorization efforts within the future circular bioeconomy. Strategies are introduced to effectively synthesize, deconstruct and reassemble or engineer FLW-derived monomeric, polymeric, and colloidal building blocks. Multifunctional bioplastics are introduced considering the structural, chemical, physical as well as the accessibility of FLW precursors. Processing techniques are analyzed within the fields of polymer chemistry and physics. The prospects of FLW streams and biomass surplus, considering their availability, interactions with water and thermal stability, are critically discussed in a near-future scenario that is expected to lead to next-generation bioplastics and advanced materials.
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Affiliation(s)
- Caio G Otoni
- Department of Materials Engineering (DEMa), Federal University of São Carlos (UFSCar), Rod. Washington Luiz, km 235, São Carlos, SP, 13565-905, Brazil
| | - Henriette M C Azeredo
- Embrapa Agroindústria Tropical, Rua Dra. Sara Mesquita 2270, Fortaleza, CE, 60511-110, Brazil
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, Rua XV de Novembro 1452, São Carlos, SP, 13560-970, Brazil
| | - Bruno D Mattos
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, Aalto, Espoo, FIN-00076, Finland
| | - Marco Beaumont
- Department of Chemistry, University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad-Lorenz-Str. 24, Tulln, A-3430, Austria
| | - Daniel S Correa
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, Rua XV de Novembro 1452, São Carlos, SP, 13560-970, Brazil
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, Aalto, Espoo, FIN-00076, Finland
- Bioproducts Institute, Departments of Chemical & Biological Engineering, Chemistry and Wood Science, The University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
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24
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Prévost V, Beaumont M. Survey about the liberal nurses' practice on the use of lower limb venous compression devices in people over 65-years-old in France. J Med Vasc 2021; 46:249-253. [PMID: 34862020 DOI: 10.1016/j.jdmv.2021.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 09/26/2021] [Indexed: 06/13/2023]
Affiliation(s)
- V Prévost
- Hôpital de jour gériatrique, centre hospitalier Michel-Mazéas, Douarnenez, France.
| | - M Beaumont
- EA3878 (GETBO), CHU de Brest, Brest, France
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25
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Beaumont M, Otoni CG, Mattos BD, Koso TV, Abidnejad R, Zhao B, Kondor A, King AWT, Rojas OJ. Regioselective and water-assisted surface esterification of never-dried cellulose: nanofibers with adjustable surface energy. Green Chem 2021; 23:6966-6974. [PMID: 34671224 PMCID: PMC8452180 DOI: 10.1039/d1gc02292j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 07/29/2021] [Indexed: 05/25/2023]
Abstract
A new regioselective route is introduced for surface modification of biological colloids in the presence of water. Taking the case of cellulose nanofibers (CNFs), we demonstrate a site-specific (93% selective) reaction between the primary surface hydroxyl groups (C6-OH) of cellulose and acyl imidazoles. CNFs bearing C6-acetyl and C6-isobutyryl groups, with a degree of substitution of up to 1 mmol g-1 are obtained upon surface esterification, affording CNFs of adjustable surface energy. The morphological and structural features of the nanofibers remain largely unaffected, but the regioselective surface reactions enable tailoring of their interfacial interactions, as demonstrated in oil/water Pickering emulsions. Our method precludes the need for drying or exchange with organic solvents for surface esterification, otherwise needed in the synthesis of esterified colloids and polysaccharides. Moreover, the method is well suited for application at high-solid content, opening the possibility for implementation in reactive extrusion and compounding. The proposed acylation is introduced as a sustainable approach that benefits from the presence of water and affords a high chemical substitution selectivity.
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Affiliation(s)
- Marco Beaumont
- Department of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU) Konrad-Lorenz-Straße 24 A-3430 Tulln Austria
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University P.O. Box 16300 Espoo FI-00076 Finland
| | - 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
| | - Bruno D Mattos
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University P.O. Box 16300 Espoo FI-00076 Finland
| | - Tetyana V Koso
- Materials Chemistry Division, Department of Chemistry, University of Helsinki AI Virtasen aukio 1 FI-00560 Helsinki Finland
| | - Roozbeh Abidnejad
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University P.O. Box 16300 Espoo FI-00076 Finland
| | - Bin Zhao
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University P.O. Box 16300 Espoo FI-00076 Finland
| | - Anett Kondor
- Surface Measurement Systems Ltd. Rosemont Rd Wembley London HA0 4PE UK
| | - Alistair W T King
- Materials Chemistry Division, Department of Chemistry, University of Helsinki AI Virtasen aukio 1 FI-00560 Helsinki Finland
| | - 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, 2360 East Mall; Chemistry, 2036 Main Mall, and Wood Science, 2424 Main Mall, The University of British Columbia Vancouver BC V6T 1Z3 Canada
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26
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Dobaj Štiglic A, Kargl R, Beaumont M, Strauss C, Makuc D, Egger D, Plavec J, Rojas OJ, Stana Kleinschek K, Mohan T. Influence of Charge and Heat on the Mechanical Properties of Scaffolds from Ionic Complexation of Chitosan and Carboxymethyl Cellulose. ACS Biomater Sci Eng 2021; 7:3618-3632. [PMID: 34264634 PMCID: PMC8396805 DOI: 10.1021/acsbiomaterials.1c00534] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 06/29/2021] [Indexed: 11/29/2022]
Abstract
As one of the most abundant, multifunctional biological polymers, polysaccharides are considered promising materials to prepare tissue engineering scaffolds. When properly designed, wetted porous scaffolds can have biomechanics similar to living tissue and provide suitable fluid transport, both of which are key features for in vitro and in vivo tissue growth. They can further mimic the components and function of glycosaminoglycans found in the extracellular matrix of tissues. In this study, we investigate scaffolds formed by charge complexation between anionic carboxymethyl cellulose and cationic protonated chitosan under well-controlled conditions. Freeze-drying and dehydrothermal heat treatment were then used to obtain porous materials with exceptional, unprecendent mechanical properties and dimensional long-term stability in cell growth media. We investigated how complexation conditions, charge ratio, and heat treatment significantly influence the resulting fluid uptake and biomechanics. Surprisingly, materials with high compressive strength, high elastic modulus, and significant shape recovery are obtained under certain conditions. We address this mostly to a balanced charge ratio and the formation of covalent amide bonds between the polymers without the use of additional cross-linkers. The scaffolds promoted clustered cell adhesion and showed no cytotoxic effects as assessed by cell viability assay and live/dead staining with human adipose tissue-derived mesenchymal stem cells. We suggest that similar scaffolds or biomaterials comprising other polysaccharides have a large potential for cartilage tissue engineering and that elucidating the reason for the observed peculiar biomechanics can stimulate further research.
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Affiliation(s)
- Andreja Dobaj Štiglic
- Laboratory
for Characterization and Processing of Polymers, Faculty of Mechanical
Engineering, University of Maribor, Smetanova Ulica 17, 2000 Maribor, Slovenia
| | - Rupert Kargl
- Laboratory
for Characterization and Processing of Polymers, Faculty of Mechanical
Engineering, University of Maribor, Smetanova Ulica 17, 2000 Maribor, Slovenia
- Institute
of Automation, Faculty of Electrical Engineering and Computer Science, University of Maribor, Koroska cesta 46, 2000 Maribor, Slovenia
- Institute
of Chemistry and Technology of Biobased System (IBioSys), Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Marco Beaumont
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, Espoo 00076, Finland
| | - Christine Strauss
- Department
of Biotechnology, University of Natural
Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
| | - Damjan Makuc
- Slovenian
NMR Center, National Institute of Chemistry, Hajdrihova 19, 1001 Ljubljana, Slovenia
| | - Dominik Egger
- Department
of Biotechnology, University of Natural
Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
| | - Janez Plavec
- Slovenian
NMR Center, National Institute of Chemistry, Hajdrihova 19, 1001 Ljubljana, Slovenia
- EN→FIST
Center of Excellence, Trg OF 13, SI-1000 Ljubljana, Slovenia
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna
pot 113, 1000 Ljubljana, Slovenia
| | - Orlando J. Rojas
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, Espoo 00076, Finland
- Departments
of Chemical and Biological Engineering, Chemistry, and Wood Science,
Bioproducts Institute, University of British
Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z4, Canada
| | - Karin Stana Kleinschek
- Institute
of Automation, Faculty of Electrical Engineering and Computer Science, University of Maribor, Koroska cesta 46, 2000 Maribor, Slovenia
- Institute
of Chemistry and Technology of Biobased System (IBioSys), Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Tamilselvan Mohan
- Institute
of Chemistry and Technology of Biobased System (IBioSys), Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
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27
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Kuzucu M, Vera G, Beaumont M, Fischer S, Wei P, Shastri VP, Forget A. Extrusion-Based 3D Bioprinting of Gradients of Stiffness, Cell Density, and Immobilized Peptide Using Thermogelling Hydrogels. ACS Biomater Sci Eng 2021; 7:2192-2197. [PMID: 33970597 PMCID: PMC8207502 DOI: 10.1021/acsbiomaterials.1c00183] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/06/2021] [Indexed: 01/09/2023]
Abstract
To study biological processes in vitro, biomaterials-based engineering solutions to reproduce the gradients observed in tissues are necessary. We present a platform for the 3D bioprinting of functionally graded biomaterials based on carboxylated agarose, a bioink amendable by extrusion bioprinting. Using this bioink, objects with a gradient of stiffness and gradient of cell concentration were printed. Functionalization of carboxylated agarose with maleimide moieties that react in minutes with a cysteine-terminated cell-adhesion peptide allowed us to print objects with a gradient of an immobilized peptide. This approach paves the way toward the development of tissue mimics with gradients.
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Affiliation(s)
- Merve Kuzucu
- Institute
for Macromolecular Chemistry, University
of Freiburg, Stefan-Meier-Str. 31, 79104 Freiburg, Germany
| | - Grace Vera
- Institute
for Macromolecular Chemistry, University
of Freiburg, Stefan-Meier-Str. 31, 79104 Freiburg, Germany
| | - Marco Beaumont
- School
of Chemistry and Physics, Queensland University
of Technology, 2 George
St, Brisbane City, Queensland 4000, Australia
- Institute
of Chemistry of Renewable Resources, University
of Natural Resources and Life Sciences (BOKU), Konrad-Lorenz-Straße 24 3430 Tulln, Austria
| | - Sascha Fischer
- Institute
for Macromolecular Chemistry, University
of Freiburg, Stefan-Meier-Str. 31, 79104 Freiburg, Germany
| | - Pan Wei
- Institute
for Macromolecular Chemistry, University
of Freiburg, Stefan-Meier-Str. 31, 79104 Freiburg, Germany
| | - V. Prasad Shastri
- Institute
for Macromolecular Chemistry, University
of Freiburg, Stefan-Meier-Str. 31, 79104 Freiburg, Germany
- BIOSS,
Centre for Cell Signalling Studies, Schänzlestr. 18, 79104 Freiburg, Germany
| | - Aurelien Forget
- Institute
for Macromolecular Chemistry, University
of Freiburg, Stefan-Meier-Str. 31, 79104 Freiburg, Germany
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28
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Beaumont M, Jusner P, Gierlinger N, King AWT, Potthast A, Rojas OJ, Rosenau T. Unique reactivity of nanoporous cellulosic materials mediated by surface-confined water. Nat Commun 2021; 12:2513. [PMID: 33947852 PMCID: PMC8097012 DOI: 10.1038/s41467-021-22682-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 03/21/2021] [Indexed: 02/02/2023] Open
Abstract
The remarkable efficiency of chemical reactions is the result of biological evolution, often involving confined water. Meanwhile, developments of bio-inspired systems, which exploit the potential of such water, have been so far rather complex and cumbersome. Here we show that surface-confined water, inherently present in widely abundant and renewable cellulosic fibres can be utilised as nanomedium to endow a singular chemical reactivity. Compared to surface acetylation in the dry state, confined water increases the reaction rate and efficiency by 8 times and 30%, respectively. Moreover, confined water enables control over chemical accessibility of selected hydroxyl groups through the extent of hydration, allowing regioselective reactions, a major challenge in cellulose modification. The reactions mediated by surface-confined water are sustainable and largely outperform those occurring in organic solvents in terms of efficiency and environmental compatibility. Our results demonstrate the unexploited potential of water bound to cellulosic nanostructures in surface esterifications, which can be extended to a wide range of other nanoporous polymeric structures and reactions.
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Affiliation(s)
- Marco Beaumont
- Department of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Tulln, Austria.
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Aalto, Finland.
| | - Paul Jusner
- Department of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Tulln, Austria
| | - Notburga Gierlinger
- Institute for Biophysics, Department of Nanobiotechnology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Alistair W T King
- Materials Chemistry Division, Department of Chemistry, University of Helsinki, Helsinki, Finland
| | - Antje Potthast
- Department of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Tulln, Austria
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Aalto, Finland
- Bioproducts Institute, Departments of Chemical and Biological Engineering, Chemistry and Wood Science, University of British Columbia, Vancouver, BC, Canada
| | - Thomas Rosenau
- Department of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Tulln, Austria.
- Johan Gadolin Process Chemistry Centre, Åbo Akademi University, Turku, Finland.
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29
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Beaumont M, Le Tallec F, Villiot-Danger E. [Inspiratory muscle training during pulmonary rehabilitation]. Rev Mal Respir 2021; 38:754-767. [PMID: 33879382 DOI: 10.1016/j.rmr.2021.04.003] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 04/04/2021] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Inspiratory muscle training (IMT) is part of the management of patients with pulmonary diseases during rehabilitation. Since the last recommendations of the Société de pneumologie de langue française, several studies have focused on the role of inspiratory muscle training during pulmonary rehabilitation. BACKGROUND IMT, in comparison to standard care or sham-IMT, improves the strength and endurance of the inspiratory muscles, decreases dyspnoea during the activities of daily living, improves walking distance and quality of life. However, the different studies did not show an additional effect of IMT during a pulmonary rehabilitation program compared to a rehabilitation program without IMT, with regard to improvement of exercise capacity and quality of life. OUTLOOK One study showed an improvement in dyspnoea of effort, but these results are yet to be confirmed. Finally, it seems appropriate to associate IMT with an exercise-training program before chest or abdominal surgery, even if further studies are necessary. CONCLUSION During a pulmonary rehabilitation program, IMT does not provide additional benefits. However, when patients cannot perform a global exercise training, IMT has shown benefit. IMT provides additional benefits in pre-operative programs.
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Affiliation(s)
- M Beaumont
- Service de réhabilitation respiratoire, centre hospitalier des Pays de Morlaix, Morlaix, France; Laboratoire GETBO (EA3878), CIC Inserm 1412, centre hospitalier universitaire de Brest, Brest, France.
| | - F Le Tallec
- Service de kinésithérapie, centre hospitalier privé Saint-Grégoire, Rennes, France
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Beaumont M, Tran R, Vera G, Niedrist D, Rousset A, Pierre R, Shastri VP, Forget A. Hydrogel-Forming Algae Polysaccharides: From Seaweed to Biomedical Applications. Biomacromolecules 2021; 22:1027-1052. [PMID: 33577286 PMCID: PMC7944484 DOI: 10.1021/acs.biomac.0c01406] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 01/29/2021] [Indexed: 12/22/2022]
Abstract
With the increasing growth of the algae industry and the development of algae biorefinery, there is a growing need for high-value applications of algae-extracted biopolymers. The utilization of such biopolymers in the biomedical field can be considered as one of the most attractive applications but is challenging to implement. Historically, polysaccharides extracted from seaweed have been used for a long time in biomedical research, for example, agarose gels for electrophoresis and bacterial culture. To overcome the current challenges in polysaccharides and help further the development of high-added-value applications, an overview of the entire polysaccharide journey from seaweed to biomedical applications is needed. This encompasses algae culture, extraction, chemistry, characterization, processing, and an understanding of the interactions of soft matter with living organisms. In this review, we present algae polysaccharides that intrinsically form hydrogels: alginate, carrageenan, ulvan, starch, agarose, porphyran, and (nano)cellulose and classify these by their gelation mechanisms. The focus of this review further lays on the culture and extraction strategies to obtain pure polysaccharides, their structure-properties relationships, the current advances in chemical backbone modifications, and how these modifications can be used to tune the polysaccharide properties. The available techniques to characterize each organization scale of a polysaccharide hydrogel are presented, and the impact on their interactions with biological systems is discussed. Finally, a perspective of the anticipated development of the whole field and how the further utilization of hydrogel-forming polysaccharides extracted from algae can revolutionize the current algae industry are suggested.
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Affiliation(s)
- Marco Beaumont
- Queensland
University of Technology, Brisbane, Australia
| | - Remy Tran
- Institute
for Macromolecular Chemistry, University
of Freiburg, Freiburg, Germany
| | - Grace Vera
- Institute
for Macromolecular Chemistry, University
of Freiburg, Freiburg, Germany
| | - Dennis Niedrist
- Institute
for Macromolecular Chemistry, University
of Freiburg, Freiburg, Germany
| | - Aurelie Rousset
- Centre
d’Étude et de Valorisation des Algues, Pleubian, France
| | - Ronan Pierre
- Centre
d’Étude et de Valorisation des Algues, Pleubian, France
| | - V. Prasad Shastri
- Institute
for Macromolecular Chemistry, University
of Freiburg, Freiburg, Germany
- Centre
for Biological Signalling Studies, University
of Freiburg, Frieburg, Germany
| | - Aurelien Forget
- Institute
for Macromolecular Chemistry, University
of Freiburg, Freiburg, Germany
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Lehtonen J, Chen X, Beaumont M, Hassinen J, Orelma H, Dumée LF, Tardy BL, Rojas OJ. Impact of incubation conditions and post-treatment on the properties of bacterial cellulose membranes for pressure-driven filtration. Carbohydr Polym 2021; 251:117073. [PMID: 33142618 DOI: 10.1016/j.carbpol.2020.117073] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/13/2020] [Accepted: 09/05/2020] [Indexed: 12/17/2022]
Abstract
Bacterial cellulose (BC) has shown potential as a separation material. Herein, the performance of BC in pressure-driven separation is investigated as a function of incubation conditions and post-culture treatment. The pure water flux of never-dried BC (NDBC), was found to be 9 to 16 times higher than that for dried BC (DBC), in a pressure range of 0.25 to 2.5 bar. The difference in pressure response of NDBC and DBC was observed both in cross-flow filtration and capillary flow porometry experiments. DBC and NDBC were permeable to polymers with a hydrodynamic radius of ∼60 nm while protein retention was possible by introducing anionic surface charges on BC. The results of this work are expected to expand the development of BC-based filtration membranes, for instance towards the processing of biological fluids.
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Affiliation(s)
- Janika Lehtonen
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P. O. Box 16300, FI-00076 Aalto, Espoo, Finland
| | - Xiao Chen
- Deakin University, Geelong, Institute for Frontier Materials, Waurn Ponds, Victoria 3216, Australia
| | - Marco Beaumont
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P. O. Box 16300, FI-00076 Aalto, Espoo, Finland
| | - Jukka Hassinen
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P. O. Box 16300, FI-00076 Aalto, Espoo, Finland
| | - Hannes Orelma
- VTT - Technical Research Centre of Finland, Tietotie 4E, P.O. Box 1000, FI-02044 Espoo, Finland
| | - Ludovic F Dumée
- Deakin University, Geelong, Institute for Frontier Materials, Waurn Ponds, Victoria 3216, Australia; Khalifa University, Department of Chemical Engineering, Abu Dhabi, United Arab Emirates; Center for Membrane and Advanced Water Technology, Khalifa University, Abu Dhabi, United Arab Emirates.
| | - Blaise L Tardy
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P. O. Box 16300, FI-00076 Aalto, Espoo, Finland.
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P. O. Box 16300, FI-00076 Aalto, Espoo, 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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Solin K, Beaumont M, Rosenfeldt S, Orelma H, Borghei M, Bacher M, Opietnik M, Rojas OJ. Self-Assembly of Soft Cellulose Nanospheres into Colloidal Gel Layers with Enhanced Protein Adsorption Capability for Next-Generation Immunoassays. Small 2020; 16:e2004702. [PMID: 33215868 DOI: 10.1002/smll.202004702] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/20/2020] [Indexed: 06/11/2023]
Abstract
Soft cationic core/shell cellulose nanospheres can deform and interpenetrate allowing their self-assembly into densely packed colloidal nanogel layers. Taking advantage of their water-swelling capacity and molecular accessibility, the nanogels are proposed as a new and promising type of coating material to immobilize bioactive molecules on thin films and paper. The specific and nonspecific interactions between the cellulosic nanogel and human immunoglobulin G as well as bovine serum albumin (BSA) are investigated. Confocal microscopy, electroacoustic microgravimetry, and surface plasmon resonance are used to access information about the adsorption behavior and viscoelastic properties of self-assembled nanogels. A significant BSA adsorption capacity on nanogel layers (17 mg m-2 ) is measured, 300% higher compared to typical polymer coatings. This high protein affinity further confirms the promise of the introduced colloidal gel layer, in increasing sensitivity and advancing a new generation of substrates for a variety of applications, including immunoassays, as demonstrated in this work.
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Affiliation(s)
- Katariina Solin
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, Espoo, FI-00076, Finland
| | - Marco Beaumont
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, Espoo, FI-00076, Finland
- Department of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Konrad-Lorenz-Strasse 24, Tulln, A-3430, Austria
| | - Sabine Rosenfeldt
- Bavarian Polymer Institute and Department of Chemistry, University of Bayreuth, Bayreuth, D-95440, Germany
| | - Hannes Orelma
- VTT - Technical Research Centre of Finland, Tietotie 4E, P.O. Box 1000, Espoo, FI-02044, Finland
| | - Maryam Borghei
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, Espoo, FI-00076, Finland
| | - Markus Bacher
- Department of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Konrad-Lorenz-Strasse 24, Tulln, A-3430, Austria
| | | | - Orlando J Rojas
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, Espoo, FI-00076, Finland
- The Bioproducts Institute, Department of Chemical and Biological Engineering, and Department of Chemistry and Wood Science, University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z4, Canada
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Louis JS, Odille F, Mandry D, De Chillou C, Huttin O, Felblinger J, Venner C, Beaumont M. Design and evaluation of an abbreviated pixelwise dynamic contrast enhancement analysis protocol for early extracellular volume fraction estimation. Magn Reson Imaging 2020; 76:61-68. [PMID: 33227403 DOI: 10.1016/j.mri.2020.11.007] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 11/15/2020] [Accepted: 11/15/2020] [Indexed: 11/30/2022]
Abstract
INTRODUCTION T1-based method is considered as the gold standard for extracellular volume fraction (ECV) mapping. This technique requires at least a 10 min delay after injection to acquire the post injection T1 map. Quantitative analysis of Dynamic Contrast Enhancement (DCE) images could lead to an earlier estimation of an ECV like parameter (2 min). The purpose of this study was to design a quantitative pixel-wise DCE analysis workflow to assess the feasibility of an early estimation of ECV. METHODS Fourteen patients with mitral valve prolapse were included in this study. The MR protocol, performed on a 3 T MR scanner, included MOLLI sequences for T1 maps acquisition and a standard SR-turboFlash sequence for dynamic acquisition. DCE data were acquired for at least 120 s. We implemented a full DCE analysis pipeline with a pre-processing step using an innovative motion correction algorithm (RC-REG algorithm) and a post-processing step using the extended Tofts Model (ECVETM). Estimated ECVETM maps were compared to standard T1-based ECV maps (ECVT1) with both a Pearson correlation analysis and a group-wise analysis. RESULTS Image and map quality assessment showed systematic improvements using the proposed workflow. Strong correlation was found between ECVETM, and ECVT1 values (r-square = 0.87). CONCLUSION A DCE analysis workflow based on RC-REG algorithm and ETM analysis can provide good quality parametric maps. Therefore, it is possible to extract ECV values from a 2 min-long DCE acquisition that are strongly correlated with ECV values from the T1 based method.
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Affiliation(s)
- J S Louis
- IADI, INSERM U1254, Université de Lorraine, Nancy, France.
| | - F Odille
- IADI, INSERM U1254, Université de Lorraine, Nancy, France; CIC-IT, INSERM 1433, Université de Lorraine and CHRU Nancy, Nancy, France.
| | - D Mandry
- IADI, INSERM U1254, Université de Lorraine, Nancy, France; Pôle Imagerie, CHRU Nancy, Nancy, France.
| | - C De Chillou
- IADI, INSERM U1254, Université de Lorraine, Nancy, France; Pôle Cardiologie, CHRU Nancy, Nancy, France.
| | - O Huttin
- Pôle Cardiologie, CHRU Nancy, Nancy, France.
| | - J Felblinger
- IADI, INSERM U1254, Université de Lorraine, Nancy, France; CIC-IT, INSERM 1433, Université de Lorraine and CHRU Nancy, Nancy, France; Pôle Imagerie, CHRU Nancy, Nancy, France.
| | - C Venner
- Pôle Cardiologie, CHRU Nancy, Nancy, France
| | - M Beaumont
- IADI, INSERM U1254, Université de Lorraine, Nancy, France; CIC-IT, INSERM 1433, Université de Lorraine and CHRU Nancy, Nancy, France.
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Burger D, Beaumont M, Rosenau T, Tamada Y. Porous Silk Fibroin/Cellulose Hydrogels for Bone Tissue Engineering via a Novel Combined Process Based on Sequential Regeneration and Porogen Leaching. Molecules 2020; 25:E5097. [PMID: 33153040 PMCID: PMC7663655 DOI: 10.3390/molecules25215097] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/17/2020] [Accepted: 10/26/2020] [Indexed: 12/19/2022] Open
Abstract
Scaffolds used for bone tissue engineering need to have a variety of features to accommodate bone cells. The scaffold should mimic natural bone, it should have appropriate mechanical strength, support cell differentiation to the osteogenic lineage, and offer adequate porosity to allow vascularization and bone in-growth. In this work, we aim at developing a new process to fabricate such materials by creating a porous composite material made of silk fibroin and cellulose as a suitable scaffold of bone tissue engineering. Silk fibroin and cellulose are both dissolved together in N,N-dimethylacetamide/LiCl and molded to a porous structure using NaCl powder. The hydrogels are prepared by a sequential regeneration process: cellulose is solidified by water vapor treatment, while the remaining silk fibroin in the hydrogel is insolubilized by methanol, which leads to a cellulose framework structure embedded in a silk fibroin matrix. Finally, the hydrogels are soaked in water to dissolve the NaCl for making a porous structure. The cellulose composition results in improving the mechanical properties for the hydrogels in comparison to the silk fibroin control material. The pore size and porosity are estimated at around 350 µm and 70%, respectively. The hydrogels support the differentiation of MC3T3 cells to osteoblasts and are expected to be a good scaffold for bone tissue engineering.
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Affiliation(s)
- Dennis Burger
- Faculty of Textile Science and Technology, Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan;
| | - Marco Beaumont
- Institute of Chemistry of Renewable Resources, Department for Chemistry, University of Natural Resources and Life Sciences Vienna (BOKU), Konrad-Lorenz-Str. 24, 3430 Tulln, Austria
| | - Thomas Rosenau
- Institute of Chemistry of Renewable Resources, Department for Chemistry, University of Natural Resources and Life Sciences Vienna (BOKU), Konrad-Lorenz-Str. 24, 3430 Tulln, Austria
| | - Yasushi Tamada
- Faculty of Textile Science and Technology, Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-8567, Japan;
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Bertholdt C, Chen B, Dap M, Morel O, Beaumont M. Comments on "Placental vascular tree characterization based on ex-vivo MRI with a potential application for placental insufficiency assessment". Placenta 2020; 101:251. [PMID: 33092722 DOI: 10.1016/j.placenta.2020.07.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 07/06/2020] [Indexed: 11/26/2022]
Affiliation(s)
- C Bertholdt
- Université de Lorraine, CHRU-NANCY, Pôle de de Gynécologie-Obstétrique, F-54000, Nancy, France; Université de Lorraine, Inserm, IADI, F-54000, Nancy, France.
| | - B Chen
- Université de Lorraine, Inserm, IADI, F-54000, Nancy, France; CHRU-NANCY, Inserm, Université de Lorraine, CIC, Innovation Technologique, F-54000, Nancy, France
| | - M Dap
- Université de Lorraine, CHRU-NANCY, Pôle de de Gynécologie-Obstétrique, F-54000, Nancy, France; Université de Lorraine, Inserm, IADI, F-54000, Nancy, France
| | - O Morel
- Université de Lorraine, CHRU-NANCY, Pôle de de Gynécologie-Obstétrique, F-54000, Nancy, France; Université de Lorraine, Inserm, IADI, F-54000, Nancy, France
| | - M Beaumont
- Université de Lorraine, Inserm, IADI, F-54000, Nancy, France; CHRU-NANCY, Inserm, Université de Lorraine, CIC, Innovation Technologique, F-54000, Nancy, France
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Horcajada MN, Beaumont M, Sauvageot N, Poquet L, Saboudjian M, Hick AC, Costes B, Garcia L, Henrotin Y. FRI0653-HPR AN OLEUROPEIN-BASED DIETARY SUPPLEMENT IMPROVES JOINT FUNCTIONALITY IN OLDER PEOPLE WITH HIGH KNEE JOINT PAIN. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.3655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:OLE provides oleuropein the most prevalent phenolic component in olive leaves and has been shown to have potent anti-inflammatory and anti-oxidant effects potentially interesting for joint health (1).Objectives:The aim of this study was to investigate the effects of a 6-month intervention with an Olive Leaf Extract (OLE) standardized for oleuropein content on knee functionality and biomarkers of bone/cartilage metabolism and inflammation.Methods:The study was a randomized, double-blind, placebo-controlled, multi-centric trial of 124 subjects with mild knee pain or mobility issues. Subjects were randomized equally to receive twice a day one capsule of either maltodextrin (control treatment, CT) or 125-mg OLE (BonoliveTM, an Olive Leaf Extract containing 50 mg of Oleuropein) for 6 months. The co-primary endpoints were Knee injury and Osteoarthritis Outcome Score (KOOS) using a self-administered questionnaire and serum Coll2-1NO2 specific biomarker of cartilage degradation. The secondary endpoints were each of the five sub-scales of the KOOS questionnaire, Knee pain VAS score at rest and at walking, OARSI core set of performance-based tests and serum biomarkers (Coll2-1, MPO, CTX1, osteocalcin, PGE2 and Vplex cytokines assay in serum) and concentration of Oleuropein’s metabolites in urine.Results:Primary (global KOOS score, biomarker Coll2-1 NO2) and secondary endpoints (the five subscales of the KOOS score) improved time dependently in both groups. OLE treatment showed significantly elevated urinary oleuropein metabolites (oleuropein aglycone, hydroxytyrosol, homovanillyl alcohol and isomer of homovanillyl alcohol), and was well tolerated without significant differences in number of subjects with adverse events. At 6 months, OLE group showed a higher global KOOS score compared to placebo (treatment difference = 3.73; 95% CI = [-4.08;11.54]; p = 0.34), without significant changes of inflammatory and cartilage remodeling biomarkers. Subgroup analyses demonstrated a large and significant treatment effect of OLE in subjects with high walking pain at baseline (14.4; 95% CI = [1.19;27.63], p=0.03). This was observed at 6 months for the global KOOS score and each different subscale and for pain at walking (-23.07;95% CI = [-41.8;-4.2];p=0.02). These treatment effects at 6 months were significant for KOOS score as well as for the subscales Pain and QoL and the pain at walking.Conclusion:OLE was not effective on joint discomfort in people with low to moderate pain at baseline but significantly benefited subjects with high pain at treatment initiation. As oleuropein is well-tolerated, OLE can be used to relieve knee joint pain and enhance mobility in subjects with articular pain the most painful subjects.References:[1] Horcajada MN, Sanchez C, Membrez Scalfo F, Drion P, Comblain F, Taralla S, Donneau AF, Offord EA, Henrotin Y. Oleuropein or rutin consumption decreases the spontaneous development of osteoarthritis in the Hartley guinea pig. Osteoarthritis Cartilage. 2015 Jan;23(1):94-102Disclosure of Interests:Marie-Noelle Horcajada Employee of: nestlé, Maurice Beaumont Employee of: nestle, Nicolas Sauvageot Employee of: Nestlé, Laure Poquet Employee of: Nestlé, Madleen Saboudjian Employee of: Nestlé, Anne-Christine Hick Employee of: Artialis SA, Berenice Costes Employee of: Artialis SA, Laetitia Garcia Employee of: Artialis, Yves Henrotin Grant/research support from: HEEL, TILMAN
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Mohan T, Dobaj Štiglic A, Beaumont M, Konnerth J, Gürer F, Makuc D, Maver U, Gradišnik L, Plavec J, Kargl R, Stana Kleinschek K. Generic Method for Designing Self-Standing and Dual Porous 3D Bioscaffolds from Cellulosic Nanomaterials for Tissue Engineering Applications. ACS Appl Bio Mater 2020; 3:1197-1209. [DOI: 10.1021/acsabm.9b01099] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Tamilselvan Mohan
- Laboratory for Characterisation and Processing of Polymers, Faculty of Mechanical Engineering, University of Maribor, Smetanova Ulica 17, 2000 Maribor, Slovenia
| | - Andreja Dobaj Štiglic
- Laboratory for Characterisation and Processing of Polymers, Faculty of Mechanical Engineering, University of Maribor, Smetanova Ulica 17, 2000 Maribor, Slovenia
| | - Marco Beaumont
- University of Natural Resources and Life Sciences (BOKU), Institute of Chemistry of Renewable Resources, Konrad-Lorenz-Strasse 24, 3430 Tulln, Austria
| | - Johannes Konnerth
- University of Natural Resources and Life Sciences (BOKU), Department of Material Sciences and Process Engineering, Institute of Wood Technology and Renewable Materials, Konrad-Lorenz-Strasse 24, 3430 Tulln, Austria
| | - Fazilet Gürer
- Laboratory for Characterisation and Processing of Polymers, Faculty of Mechanical Engineering, University of Maribor, Smetanova Ulica 17, 2000 Maribor, Slovenia
| | - Damjan Makuc
- National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia
| | - Uroš Maver
- University of Maribor, Faculty of Medicine, Institute of Biomedical Sciences, Taborska Ulica 8, SI-2000 Maribor, Slovenia
| | - Lidija Gradišnik
- University of Maribor, Faculty of Medicine, Institute of Biomedical Sciences, Taborska Ulica 8, SI-2000 Maribor, Slovenia
| | - Janez Plavec
- National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia
| | - Rupert Kargl
- Laboratory for Characterisation and Processing of Polymers, Faculty of Mechanical Engineering, University of Maribor, Smetanova Ulica 17, 2000 Maribor, Slovenia
- Institute of Paper, Pulp and Fibre Technology (IPZ), Graz University of Technology, Inffeldgasse 23, A-8010 Graz, Austria
- Institute of Automation, Faculty of Electrical Engineering and Computer Science, University of Maribor, Koroska Cesta 46, 2000 Maribor, Slovenia
| | - Karin Stana Kleinschek
- Institute of Chemistry and Technology of Biobased System, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
- Institute of Automation, Faculty of Electrical Engineering and Computer Science, University of Maribor, Koroska Cesta 46, 2000 Maribor, Slovenia
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Lucia A, van Herwijnen HW, Oberlerchner JT, Rosenau T, Beaumont M. Resource-Saving Production of Dialdehyde Cellulose: Optimization of the Process at High Pulp Consistency. ChemSusChem 2019; 12:4679-4684. [PMID: 31373765 PMCID: PMC6857006 DOI: 10.1002/cssc.201901885] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Indexed: 06/10/2023]
Abstract
Oxidation of cellulose with periodate under aqueous conditions yields dialdehyde cellulose, a promising functional cellulose derivative. The main obstacles for this oxidation have been its slow kinetics and the dilute reaction conditions, requiring considerable amounts of water and energy. In this study, these drawbacks are overcome by conducting the oxidation at high cellulosic pulp consistency with a cellulose/water weight ratio of 1:4. The oxidizer, cellulose, and water are efficiently mixed in a ball mill. Oxidation occurs mostly in the subsequent step, during the resting time (no further milling/mixing is required). The reaction and resource efficiency of the process are optimized by experimental design and a maximum aldehyde content of 8 mmol g-1 is obtained with a periodate/cellulose molar ratio of 1.25, a milling time of 2 min, and a resting time of 8 h. The developed method allows fine tuning of the oxidation level and is a key step towards the sustainable periodate oxidation of cellulose also on larger scale.
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Affiliation(s)
- Arianna Lucia
- Wood K Plus—Competence Center for Wood Composites and Wood ChemistryKompetenzzentrum Holz GmbHAltenberger Straße 694040LinzAustria
- Institute for Chemistry of Renewable ResourcesUniversity of Natural Resources and Life Science ViennaKonrad-Lorenz-Straße 24Tulln an der Donau3430Austria
| | - Hendrikus W.G. van Herwijnen
- Wood K Plus—Competence Center for Wood Composites and Wood ChemistryKompetenzzentrum Holz GmbHAltenberger Straße 694040LinzAustria
| | - Josua T. Oberlerchner
- Institute for Chemistry of Renewable ResourcesUniversity of Natural Resources and Life Science ViennaKonrad-Lorenz-Straße 24Tulln an der Donau3430Austria
| | - Thomas Rosenau
- Institute for Chemistry of Renewable ResourcesUniversity of Natural Resources and Life Science ViennaKonrad-Lorenz-Straße 24Tulln an der Donau3430Austria
- Johan Gadolin Process Chemistry CentreÅbo Akademi UniversityPorthansgatan 3Åbo/Turku20500Finland
| | - Marco Beaumont
- Institute for Chemistry of Renewable ResourcesUniversity of Natural Resources and Life Science ViennaKonrad-Lorenz-Straße 24Tulln an der Donau3430Austria
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Beaumont M, Rosenfeldt S, Tardy BL, Gusenbauer C, Khakalo A, Opietnik M, Potthast A, Rojas OJ, Rosenau T. Soft cellulose II nanospheres: sol-gel behaviour, swelling and material synthesis. Nanoscale 2019; 11:17773-17781. [PMID: 31553034 DOI: 10.1039/c9nr05309c] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
High axial aspect crystalline nanomaterials have emerged as polymeric building blocks for the construction of supermaterials. In contrast to this form, amorphous nanospheres have remained largely untapped. This is especially peculiar in the context of material assembly, due to the wide range of opportunities they offer by virtue of their soft particle characteristics, high volume ratio at low solid content and their highly swollen and accessible structure. In the context of cellulose, these colloids represent a new field in the family of nanocelluloses. We report an organic solvent-free, heterogeneous and simple synthesis of spherical carboxylated nanoparticles bearing a distinctive, amorphous outer shell structure. The particle shape is evaluated by atomic force microscopy, cryo-transmission electron microscopy, dynamic light scattering and small-angle X-ray scattering. The soft shell structure of the particles and their responsiveness to ionic strength and pH are quantified by the combination of quartz-crystal microgravimetry and atomic force microscopy. Aqueous dispersions of the nanocolloids feature distinctive sol/gel behaviour: at solid content <2 wt% they behave as a low viscous liquid (sol state), whereas at higher concentrations the shells dominate the interparticle interactions, causing an exponential increase in viscosity, typical of a gel state (hydrogel). Gelation is reversible and can be triggered alternatively by protonation of the carboxylate groups under acidic conditions. Supercritical drying of the hydrogels yields a highly porous, isotropic aerogel composed of aggregated nanoparticles. In contrast, ambient drying results in an anisotropic, fully transparent film. These colloids will allow the study of the interaction between soft cellulose and rigid matter, and have high potential as toughening additives in composites. Furthermore, the amorphous nature of this new class of cellulose nanocolloids makes them attractive as support materials for catalysts and enzymes.
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Affiliation(s)
- Marco Beaumont
- Department of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Konrad-Lorenz-Straße 24, A-3430 Tulln, Austria.
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Sulaeva I, Vejdovszky P, Beaumont M, Rusakov D, Rohrer C, Rosenau T, Potthast A. Fast Approach to the Hydrophobization of Bacterial Cellulose via the Direct Polymerization of Ethyl 2-Cyanoacrylate. Biomacromolecules 2019; 20:3142-3146. [PMID: 31264848 DOI: 10.1021/acs.biomac.9b00721] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Bacterial cellulose (BC) has a broad range of applications in biomedical fields and cosmetics. Applied as wound dressing, BC tends to stick to the sore especially upon drying, and hydrophobization improves its performance in this regard. This article reports a facile and rapid yet a highly efficient approach for BC hydrophobization through direct polymerization of ethyl 2-cyanoacrylate on the BC fibers. The modified material preserves the favorable porous structure of the matrix material while displaying significantly higher hydrophobicity and significantly decreased stickiness to the wound. The BC surface can be modified in 15 min. Overall, this can be considered a ready-to-apply approach for the fabrication of BC wound dressings with enhanced performance. The modification was demonstrated to improve the material's biocompatibility and to introduce antimicrobial activity (immortalized human fibroblast assay).
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Affiliation(s)
- Irina Sulaeva
- Department of Chemistry , University of Natural Resources and Life Sciences Vienna (BOKU University) , Konrad-Lorenz-Strasse 24 , A-3430 Tulln , Austria
| | - Philipp Vejdovszky
- Department of Chemistry , University of Natural Resources and Life Sciences Vienna (BOKU University) , Konrad-Lorenz-Strasse 24 , A-3430 Tulln , Austria
| | - Marco Beaumont
- Department of Chemistry , University of Natural Resources and Life Sciences Vienna (BOKU University) , Konrad-Lorenz-Strasse 24 , A-3430 Tulln , Austria
| | - Dmitrii Rusakov
- Institute for Materials Chemistry & Research , University of Vienna , Währinger Strasse 42 , A-1090 Vienna , Austria
| | - Christian Rohrer
- Lohmann & Rauscher GmbH & Co KG , Irlicher Straße 55 , D-56567 Neuwied , Germany
| | - Thomas Rosenau
- Department of Chemistry , University of Natural Resources and Life Sciences Vienna (BOKU University) , Konrad-Lorenz-Strasse 24 , A-3430 Tulln , Austria
| | - Antje Potthast
- Department of Chemistry , University of Natural Resources and Life Sciences Vienna (BOKU University) , Konrad-Lorenz-Strasse 24 , A-3430 Tulln , Austria
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Péran L, Le Ber C, Pichon R, Cabillic M, Beaumont M. [Follow-up and evaluation of plans developed during pulmonary rehabilitation]. Rev Mal Respir 2018; 35:929-938. [PMID: 30201399 DOI: 10.1016/j.rmr.2018.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 05/07/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND Pulmonary rehabilitation inevitably contains two essential components: therapeutic education and exercise training. The principal aim of this study was to evaluate the evolution over a year of the realization of plans determined during a pulmonary rehabilitation program (PRP). METHODS At the end of a PRP the patient made plans in accordance with his health condition. A telephone enquiry was undertaken at 3, 7 and 12 months to evaluate the progress of the plans, the motivation to perform them, dyspnoea and quality of life. RESULTS The data of 65 patients were analyzed (87 inclusions). Fifty-seven percent of the plans continued for one year. Walking had an adherence rating of 71%. Loss of motivation appeared to be the main cause for stopping (20%). Quality of life remained stable (p=0.39) and an increase in dyspnoea, though statistically significant (p<0.01), was of no clinical relevance. CONCLUSION The majority of plans were maintained but without clinical effect on the quality of life or the level of dyspnoea. Decreased motivation was the major limitation to realization or continuation of the plans. New studies will have to be implemented to analyze the factors which lead to this decrease.
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Affiliation(s)
- L Péran
- Service de réhabilitation respiratoire, centre hospitalier des Pays de Morlaix, 29672 Morlaix, France.
| | - C Le Ber
- Service de réhabilitation respiratoire, centre hospitalier des Pays de Morlaix, 29672 Morlaix, France
| | - R Pichon
- Service de réhabilitation respiratoire, centre hospitalier des Pays de Morlaix, 29672 Morlaix, France
| | | | - M Beaumont
- Service de réhabilitation respiratoire, centre hospitalier des Pays de Morlaix, 29672 Morlaix, France; EA3878 (GETBO), CHU Brest, 29200 Brest, France
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Beaumont M. Pratique du qi gong chez les patients cancéreux du DISSPO du CHU d’Amiens. PSYCHO-ONCOLOGIE 2017. [DOI: 10.1007/s11839-017-0639-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Beaumont M, Dagher J, Dugay F, Kammerer-Jacquet S, Becker E, Cornevin L, Jaillard S, Mathieu R, Chalmel F, Bensalah K, Rioux-Leclercq N, Belaud-Rotureau M. Étude comparative des profils génétiques des métastases de carcinomes rénaux à cellules claires. Prog Urol 2017. [DOI: 10.1016/j.purol.2017.07.216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Pallister T, Jackson MA, Martin TC, Glastonbury CA, Jennings A, Beaumont M, Mohney RP, Small KS, MacGregor A, Steves CJ, Cassidy A, Spector TD, Menni C, Valdes AM. Untangling the relationship between diet and visceral fat mass through blood metabolomics and gut microbiome profiling. Int J Obes (Lond) 2017; 41:1106-1113. [PMID: 28293020 PMCID: PMC5504448 DOI: 10.1038/ijo.2017.70] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 02/16/2017] [Accepted: 02/26/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND/OBJECTIVES Higher visceral fat mass (VFM) is associated with an increased risk for developing cardio-metabolic diseases. The mechanisms by which an unhealthy diet pattern may influence visceral fat (VF) development has yet to be examined through cutting-edge multi-omic methods. Therefore, our objective was to examine the dietary influences on VFM and identify gut microbiome and metabolite profiles that link food intakes to VFM. SUBJECTS/METHODS In 2218 twins with VFM, food intake and metabolomics data available we identified food intakes most strongly associated with VFM in 50% of the sample, then constructed and tested the 'VFM diet score' in the remainder of the sample. Using linear regression (adjusted for covariates, including body mass index and total fat mass), we investigated associations between the VFM diet score, the blood metabolomics profile and the fecal microbiome (n=889), and confirmed these associations with VFM. We replicated top findings in monozygotic (MZ) twins discordant (⩾1 s.d. apart) for VFM, matched for age, sex and the baseline genetic sequence. RESULTS Four metabolites were associated with the VFM diet score and VFM: hippurate, alpha-hydroxyisovalerate, bilirubin (Z,Z) and butyrylcarnitine. We replicated associations between VFM and the diet score (beta (s.e.): 0.281 (0.091); P=0.002), butyrylcarnitine (0.199 (0.087); P=0.023) and hippurate (-0.297 (0.095); P=0.002) in VFM-discordant MZ twins. We identified a single species, Eubacterium dolichum to be associated with the VFM diet score (0.042 (0.011), P=8.47 × 10-5), VFM (0.057 (0.019), P=2.73 × 10-3) and hippurate (-0.075 (0.032), P=0.021). Moreover, higher blood hippurate was associated with elevated adipose tissue expression neuroglobin, with roles in cellular oxygen homeostasis (0.016 (0.004), P=9.82x10-6). CONCLUSIONS We linked a dietary VFM score and VFM to E. dolichum and four metabolites in the blood. In particular, the relationship between hippurate, a metabolite derived from microbial metabolism of dietary polyphenols, and reduced VFM, the microbiome and increased adipose tissue expression of neuroglobin provides potential mechanistic insight into the influence of diet on VFM.
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Affiliation(s)
- T Pallister
- Department of Twin Research and Genetic Epidemiology, Kings College London, London, UK
| | - M A Jackson
- Department of Twin Research and Genetic Epidemiology, Kings College London, London, UK
| | - T C Martin
- Department of Twin Research and Genetic Epidemiology, Kings College London, London, UK
| | - C A Glastonbury
- Department of Twin Research and Genetic Epidemiology, Kings College London, London, UK
| | - A Jennings
- Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, UK
| | - M Beaumont
- Department of Twin Research and Genetic Epidemiology, Kings College London, London, UK
| | | | - K S Small
- Department of Twin Research and Genetic Epidemiology, Kings College London, London, UK
| | - A MacGregor
- Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, UK
| | - C J Steves
- Department of Twin Research and Genetic Epidemiology, Kings College London, London, UK
| | - A Cassidy
- Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, UK
| | - T D Spector
- Department of Twin Research and Genetic Epidemiology, Kings College London, London, UK
| | - C Menni
- Department of Twin Research and Genetic Epidemiology, Kings College London, London, UK
| | - A M Valdes
- Department of Twin Research and Genetic Epidemiology, Kings College London, London, UK.,Academic Rheumatology Clinical Sciences Building, University of Nottingham, Nottingham City Hospital, Nottingham, UK
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Beaumont M, Steuer N, Lan A, Grausso M, Marsset-Blaglieri A, Andriamihaja M, Khodorova N, Arinei G, Tomé D, Davila AM, Benamouzig R, Blachier F. Un régime isocalorique riche en protéines animales ou végétales entraîne une modification de la composition fécale associée à un changement du profil transcriptomique dans la muqueuse rectale chez les volontaires en surpoids. NUTR CLIN METAB 2017. [DOI: 10.1016/j.nupar.2016.10.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Mourier E, Tarrade A, Duan J, Richard C, Bertholdt C, Beaumont M, Morel O, Chavatte-Palmer P. Non-invasive evaluation of placental blood flow: lessons from animal models. Reproduction 2016; 153:R85-R96. [PMID: 27845691 DOI: 10.1530/rep-16-0428] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 11/03/2016] [Accepted: 11/14/2016] [Indexed: 01/11/2023]
Abstract
In human obstetrics, placental vascularisation impairment is frequent as well as linked to severe pathological events (preeclampsia and intrauterine growth restriction), and there is a need for reliable methods allowing non-invasive evaluation of placental blood flow. Uteroplacental vascularisation is complex, and animal models are essential for the technical development and safety assessment of these imaging tools for human clinical use; however, these techniques can also be applied in the veterinary context. This paper reviews how ultrasound-based imaging methods such as 2D and 3D Doppler can provide valuable insight for the exploration of placental blood flow both in humans and animals and how new approaches such as the use of ultrasound contrast agents or ultrafast Doppler may allow to discriminate between maternal (non-pulsatile) and foetal (pulsatile) blood flow in the placenta. Finally, functional magnetic resonance imaging could also be used to evaluate placental blood flow, as indicated by studies in animal models, but its safety in human pregnancy still requires to be confirmed.
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Affiliation(s)
- E Mourier
- UMR BDRINRA, ENVA, Université Paris Saclay, Jouy en Josas, France .,PremUp FoundationParis, France
| | - A Tarrade
- UMR BDRINRA, ENVA, Université Paris Saclay, Jouy en Josas, France.,PremUp FoundationParis, France
| | - J Duan
- IADIInserm U947, University of Lorraine, CHRU of Brabois, Nancy, France.,CHRU of Nancypole de Gynécologie Obstétrique, Nancy, France
| | - C Richard
- UMR BDRINRA, ENVA, Université Paris Saclay, Jouy en Josas, France.,PremUp FoundationParis, France
| | - C Bertholdt
- IADIInserm U947, University of Lorraine, CHRU of Brabois, Nancy, France.,CHRU of Nancypole de Gynécologie Obstétrique, Nancy, France
| | - M Beaumont
- IADIInserm U947, University of Lorraine, CHRU of Brabois, Nancy, France.,CHRU of Nancypole de Gynécologie Obstétrique, Nancy, France
| | - O Morel
- IADIInserm U947, University of Lorraine, CHRU of Brabois, Nancy, France.,CHRU of Nancypole de Gynécologie Obstétrique, Nancy, France
| | - P Chavatte-Palmer
- UMR BDRINRA, ENVA, Université Paris Saclay, Jouy en Josas, France.,PremUp FoundationParis, France
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Hettegger H, Beaumont M, Potthast A, Rosenau T. Aqueous Modification of Nano- and Microfibrillar Cellulose with a Click Synthon. ChemSusChem 2016; 9:75-9. [PMID: 26612209 DOI: 10.1002/cssc.201501358] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 10/13/2015] [Indexed: 05/24/2023]
Abstract
The modification of cellulose as a renewable resource has received wide attention in research and industry. A major problem regarding chemical modification, including heating and drying, is related to hornification that causes pore-system collapse and results in decreased reactivity and changes in the 3D structure of the material. A mild and green approach for the modification of different never-dried and thus wet cellulose substrates (pulp, nanostructured celluloses, and viscose fibers) by an alkoxysilane-azide in water is presented. A kinetic study of the silanization reaction demonstrates that alkoxy-trans-silanization of the cellulose surface is accomplished in water as a suspension medium within a few hours at room temperature. The resulting, azido-equipped celluloses are widely applicable precursor materials for subsequent functionalization by so-called click chemistry, for example, with a fluorescent Rhodamine derivative as a representative reagent. Successful covalent bonding was shown by GPC and a model reaction. The 3D structure of the materials remained intact, as was inter alia visualized by optical and fluorescence microscopy.
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Affiliation(s)
- Hubert Hettegger
- University of Natural Resources and Life Sciences Vienna (BOKU), Department of Chemistry, Division of Chemistry of Renewable Resources, Konrad-Lorenz-Strasse 24, 3430, Tulln, Austria
| | - Marco Beaumont
- University of Natural Resources and Life Sciences Vienna (BOKU), Department of Chemistry, Division of Chemistry of Renewable Resources, Konrad-Lorenz-Strasse 24, 3430, Tulln, Austria
| | - Antje Potthast
- University of Natural Resources and Life Sciences Vienna (BOKU), Department of Chemistry, Division of Chemistry of Renewable Resources, Konrad-Lorenz-Strasse 24, 3430, Tulln, Austria
| | - Thomas Rosenau
- University of Natural Resources and Life Sciences Vienna (BOKU), Department of Chemistry, Division of Chemistry of Renewable Resources, Konrad-Lorenz-Strasse 24, 3430, Tulln, Austria.
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Beaumont M, Kerautret G, Cabillic M. Étude de la reproductibilité des mesures de la force et de l’endurance du quadriceps par dynamométrie manuelle chez des patients atteints d’une BPCO. Rev Mal Respir 2016. [DOI: 10.1016/j.rmr.2015.10.639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Beaumont M, Goodridge K, Bell J, Clark A, Spector T, Ley R, Steves C. 57FRAILTY AND THE MICROBIOME: A TWIN STUDY. Age Ageing 2015. [DOI: 10.1093/ageing/afv112.01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Beaumont M, Andriamihaja M, Lan A, Khodorova N, Audebert M, Grausso Culetto M, Tomé D, Bouillaud F, Davila AM, Blachier F. MON-PP056: The Bacterial Metabolite Hydrogen Sulfide is More Abundant in Large Intestine of Rats Fed High Protein Diet and Inhibits Colonocyte Respiration in Association with Pro-Inflammatory but not Genotoxic Effects. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30488-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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