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Publications (10 of 26) Show all publications
Fameau, A.-L., Cousin, F., Dobryden, I., Dutot, C., Le Coeur, C., Douliez, J.-P., . . . Saint-Jalmes, A. (2024). 12-hydroxystearic acid-mediated in-situ surfactant generation: A novel approach for organohydrogel emulsions. Journal of Colloid and Interface Science, 672, 133-141
Open this publication in new window or tab >>12-hydroxystearic acid-mediated in-situ surfactant generation: A novel approach for organohydrogel emulsions
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2024 (English)In: Journal of Colloid and Interface Science, ISSN 0021-9797, E-ISSN 1095-7103, Vol. 672, p. 133-141Article in journal (Refereed) Published
Abstract [en]

Hypothesis: Organohydrogel emulsions display unique rheological properties and contain hydrophilic and lipophilic domains highly desirable for the loading of active compounds. They find utility in various applications from food to pharmaceuticals and cosmetic products. The current systems have limited applications due to complex expensive formulation and/or processing difficulties in scale-up. To solve these issues, a simple emulsification process coupled with unique compounds are required. Experiments: Here, we report an organohydrogel emulsion based only on a low concentration of 12-hydroxystearic acid acting as a gelling agent for both oil and water phases but also as a surfactant. The emulsification process is based on in-situ surfactant transfer. We characterize the emulsification process occurring at the nanoscale by using tensiometry experiments. The emulsion structure was determined by coupling Small Angle X-ray and neutron scattering, and confocal Raman microscopy. Findings: We demonstrate that the stability and unique rheological properties of these emulsions come from the presence of self-assembled crystalline structures of 12-hydroxystearic acid in both liquid phases. The emulsion properties can be tuned by varying the emulsion composition over a wide range. These gelled emulsions are prepared using a low energy method offering easy scale-up at an industrial level. 

Place, publisher, year, edition, pages
Academic Press Inc., 2024
Keywords
Emulsification; Emulsions; Gelation; Neutron scattering; Oils and fats; Ostwald ripening; Rheology; acid; gelling agent; hydrogel; stearic acid derivative; surfactant; water; 12-Hydroxystearic acid; Emulsification process; Energy process; Gel-emulsion; Hydrogelators; Low energy process; Lower energies; Organogelators; Phase transfer; Rheological property; Article; chemical structure; concentration (parameter); confocal microscopy; controlled study; crystal structure; emulsion; neutron scattering; tensiometry; X ray; Surface active agents
National Category
Food Engineering
Identifiers
urn:nbn:se:ri:diva-73575 (URN)10.1016/j.jcis.2024.05.213 (DOI)2-s2.0-85194914914 (Scopus ID)
Note

This work benefited from the use of the SasView application originally developed under NSF award DMR-0520547. SasView contains code developed with funding from the European Union Horizon 2020 research and innovation program under the SINE2020 project, grant agreement No 654000.

Available from: 2024-06-18 Created: 2024-06-18 Last updated: 2024-06-18Bibliographically approved
Wärnheim, A., Kotov, N., Dobryden, I., Telaretti Leggieri, R., Edvinsson, C., Heydari, G., . . . Claesson, P. M. (2024). Nanomechanical and nano-FTIR analysis of polyester coil coatings before and after artificial weathering experiments. Progress in organic coatings, 190, Article ID 108355.
Open this publication in new window or tab >>Nanomechanical and nano-FTIR analysis of polyester coil coatings before and after artificial weathering experiments
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2024 (English)In: Progress in organic coatings, ISSN 0300-9440, E-ISSN 1873-331X, Vol. 190, article id 108355Article in journal (Refereed) Published
Abstract [en]

Local heterogeneities can have significant effects on the performance of anti-corrosion coatings. Even small features can act as initiation points for damage and result in corrosion of the substrate material. Analysis methods with high spatial resolution and the ability to collect information relevant to crosslinking and degradation behavior of these coatings are therefore highly relevant. In this work, we demonstrate the utility of nanomechanical AFM measurements and nano-FTIR in investigating the nanoscale mechanical and chemical properties of two polyester coil coating clearcoats before and after weathering. On the nanoscale, weathering led to a stiffer and less deformable coating with less variation in the nanomechanical properties. Chemical degradation was quantified using changes in band ratios in the IR-spectra. Macro and nano-scale measurements showed similar trends with the latter measurements showing larger heterogeneity. Our results demonstrate the usefulness of the described analysis techniques and will pave the way for future studies of local properties in other coating systems and formulations. © 2024 The Authors

Place, publisher, year, edition, pages
Elsevier B.V., 2024
Keywords
Corrosion resistant coatings; Crosslinking; Nanotechnology; Weathering; Artificial weathering; Coil coatings; FTIR; FTIR analysis; Local heterogeneity; Nano scale; Nano-FTIR; Nanomechanical; Nanomechanical property; Fourier transform infrared spectroscopy
National Category
Materials Engineering
Identifiers
urn:nbn:se:ri:diva-72754 (URN)10.1016/j.porgcoat.2024.108355 (DOI)2-s2.0-85188822290 (Scopus ID)
Note

This work was supported by the Swedish Foundation for Strategic Research (SSF) grant FID18-0034.

Available from: 2024-05-16 Created: 2024-05-16 Last updated: 2024-05-16Bibliographically approved
Dobryden, I., Montanari, C., Bhattacharjya, D., Aydin, J. & Ahniyaz, A. (2023). Bio-Based Binder Development for Lithium-Ion Batteries.. Materials, 16(16), Article ID 5553.
Open this publication in new window or tab >>Bio-Based Binder Development for Lithium-Ion Batteries.
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2023 (English)In: Materials, E-ISSN 1996-1944, Vol. 16, no 16, article id 5553Article in journal (Refereed) Published
Abstract [en]

The development of rechargeable lithium-ion battery (LIB) technology has facilitated the shift toward electric vehicles and grid storage solutions. This technology is currently undergoing significant development to meet industrial applications for portable electronics and provide our society with "greener" electricity. The large increase in LIB production following the growing demand from the automotive sector has led to the establishment of gigafactories worldwide, thus increasing the substantial consumption of fossil-based and non-sustainable materials, such as polyvinylidene fluoride and/or styrene-butadiene rubber as binders in cathode and anode formulations. Furthermore, the use of raw resources, such as Li, Ni, and Mn in cathode active materials and graphite and nanosilicon in anodes, necessitates further efforts to enhance battery efficiency. To foster a global sustainable transition in LIB manufacturing and reduce reliance on non-sustainable materials, the implementation of bio-based binder solutions for electrodes in LIBs is crucial. Bio-based binders such as cellulose, lignin, alginate, gums, starch, and others can address environmental concerns and can enhance LIBs' performance. This review aims to provide an overview of the current progress in the development and application of bio-based binders for LIB electrode manufacturing, highlighting their significance toward sustainable development.

Keywords
anode, battery, binder, cathode, sustainable
National Category
Materials Chemistry
Identifiers
urn:nbn:se:ri:diva-66154 (URN)10.3390/ma16165553 (DOI)37629845 (PubMedID)
Note

This research received no external funding.

Available from: 2023-09-07 Created: 2023-09-07 Last updated: 2024-04-09Bibliographically approved
Mulla, Y., Isacsson, P., Dobryden, I., Beni, V., Östmark, E., Håkansson, K. & Edberg, J. (2023). Bio-Graphene Sensors for Monitoring Moisture Levels in Wood and Ambient Environment. Global Challenges, 7(4)
Open this publication in new window or tab >>Bio-Graphene Sensors for Monitoring Moisture Levels in Wood and Ambient Environment
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2023 (English)In: Global Challenges, E-ISSN 2056-6646, Vol. 7, no 4Article in journal (Refereed) Published
Abstract [en]

Wood is an inherently hygroscopic material which tends to absorb moisture from its surrounding. Moisture in wood is a determining factor for the quality of wood being employed in construction, since it causes weakening, deformation, rotting, and ultimately leading to failure of the structures resulting in costs to the economy, the environment, and to the safety of residents. Therefore, monitoring moisture in wood during the construction phase and after construction is vital for the future of smart and sustainable buildings. Employing bio-based materials for the construction of electronics is one way to mitigate the environmental impact of such electronics. Herein, a bio-graphene sensor for monitoring the moisture inside and around wooden surfaces is fabricated using laser-induced graphitization of a lignin-based ink precursor. The bio-graphene sensors are used to measure humidity in the range of 10% up to 90% at 25 °C. Using laser induced graphitization, conductor resistivity of 18.6 Ω sq−1 is obtained for spruce wood and 57.1 Ω sq−1 for pine wood. The sensitivity of sensors fabricated on spruce and pine wood is 2.6 and 0.74 MΩ per % RH. Surface morphology and degree of graphitization are investigated using scanning electron microscopy, Raman spectroscopy, and thermogravimetric analysis methods. © 2023 The Authors. 

Place, publisher, year, edition, pages
John Wiley and Sons Inc, 2023
Keywords
cellulose, humidity sensors, laser-induced graphene, lignin, moisture sensors, wood
National Category
Wood Science
Identifiers
urn:nbn:se:ri:diva-64231 (URN)10.1002/gch2.202200235 (DOI)2-s2.0-85148603362 (Scopus ID)
Note

Article; Export Date: 15 March 2023; Correspondence Address: J. Edberg, RISE Research Institutes of Sweden, Sweden;

 The authors would like to acknowledge funding from Vinnova for the Digital Cellulose Competence Center (DCC), Diary number 2016–05193, as well as financial support from Stora Enso AB. The work was also supported by Treesearch.se. Dr. Robert Brooke is thankfully acknowledged for taking the picture and video for Figure 7 and Video S1 , Supporting Information respectively.

Available from: 2023-03-20 Created: 2023-03-20 Last updated: 2024-05-27Bibliographically approved
Simatos, D., Dobryden, I. & Sirringhaus, H. (2023). Effects of Processing-Induced Contamination on Organic Electronic Devices. Small Methods, 7(11), Article ID 2300476.
Open this publication in new window or tab >>Effects of Processing-Induced Contamination on Organic Electronic Devices
2023 (English)In: Small Methods, E-ISSN 2366-9608, Vol. 7, no 11, article id 2300476Article in journal (Refereed) Published
Abstract [en]

Organic semiconductors are a family of pi-conjugated compounds used in many applications, such as displays, bioelectronics, and thermoelectrics. However, their susceptibility to processing-induced contamination is not well understood. Here, it is shown that many organic electronic devices reported so far may have been unintentionally contaminated, thus affecting their performance, water uptake, and thin film properties. Nuclear magnetic resonance spectroscopy is used to detect and quantify contaminants originating from the glovebox atmosphere and common laboratory consumables used during device fabrication. Importantly, this in-depth understanding of the sources of contamination allows the establishment of clean fabrication protocols, and the fabrication of organic field effect transistors (OFETs) with improved performance and stability. This study highlights the role of unintentional contaminants in organic electronic devices, and demonstrates that certain stringent processing conditions need to be met to avoid scientific misinterpretation, ensure device reproducibility, and facilitate performance stability. The experimental procedures and conditions used herein are typical of those used by many groups in the field of solution-processed organic semiconductors. Therefore, the insights gained into the effects of contamination are likely to be broadly applicable to studies, not just of OFETs, but also of other devices based on these materials. © 2023 The Authors. 

Place, publisher, year, edition, pages
John Wiley and Sons Inc, 2023
Keywords
Contamination; Nuclear magnetic resonance spectroscopy; Organic field effect transistors; Thermoelectric equipment; Glovebox system; Gloveboxes; Organic electronic devices; Organic electronics; Organic field-effect transistors; Performance; Pipette; Thermoelectric; Thin-film properties; Water uptake; Silicones
National Category
Condensed Matter Physics
Identifiers
urn:nbn:se:ri:diva-66723 (URN)10.1002/smtd.202300476 (DOI)2-s2.0-85169419699 (Scopus ID)
Note

D.S. and I.E.J. contributed equally to this work. The authors acknowledge funding from the Engineering and Physical Sciences Research Council (EPSRC) (EP/R031894/1, EP/R032025/1, EP/W017091/1). D.S. acknowledges support from the EPSRC Centre for Doctoral Training (CDT) in Sensor Technologies and Applications (EP/L015889/1). I.E.J. acknowledges funding from a Royal Society Newton International Fellowship. A.S. and R.M.O. acknowledge funding from the European Union's Horizon 2020 research and innovation program under the Marie Skłodowska‐Curie grant, MultiStem (No. 895801). D.V. acknowledges the Royal Society for funding in the form of a Royal Society University Research Fellowship (Royal Society Reference No. URF\R1\201590). M.G. and H.S. acknowledge funding from the European Union's Horizon 2020 research and innovation program under the Marie Skłodowska‐Curie grant agreement, UHMob (No 811284). G.S. thanks the Belgian National Fund for Scientific Research (FNRS) for financial support through research project COHERENCE2 No. F.4536.23. G.S. is an FNRS Research Associate. G.S. acknowledges financial support from the Francqui Foundation (Francqui Start‐Up Grant). I.B.D. acknowledges support from the EPSRC Cambridge NanoDTC (EP/L015978/1). H.S. acknowledges funding from a Royal Society Research Professorship (RP\R1\201082). The authors acknowledge support from the Henry Royce Institute facilities grant (EP/P024947/1), as well as the Sir Henry Royce Institute recurrent grant (EP/R00661X/1) for the use of the ambient cluster tool and the EQCM.

Available from: 2023-09-21 Created: 2023-09-21 Last updated: 2024-05-27Bibliographically approved
Kaur, J., Kelpsiene, E., Gupta, G., Dobryden, I., Cedervall, T. & Fadeel, B. (2023). Label-free detection of polystyrene nanoparticles in Daphnia magna using Raman confocal mapping. Nanoscale Advances, 5(13), 3453
Open this publication in new window or tab >>Label-free detection of polystyrene nanoparticles in Daphnia magna using Raman confocal mapping
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2023 (English)In: Nanoscale Advances, E-ISSN 2516-0230, Vol. 5, no 13, p. 3453-Article in journal (Refereed) Published
Abstract [en]

Micro- and nanoplastic pollution has emerged as a global environmental problem. Moreover, plastic particles are of increasing concern for human health. However, the detection of so-called nanoplastics in relevant biological compartments remains a challenge. Here we show that Raman confocal spectroscopy-microscopy can be deployed for the non-invasive detection of amine-functionalized and carboxy-functionalized polystyrene (PS) nanoparticles (NPs) in Daphnia magna. The presence of PS NPs in the gastrointestinal (GI) tract of D. magna was confirmed by using transmission electron microscopy. Furthermore, we investigated the ability of NH2-PS NPs and COOH-PS NPs to disrupt the epithelial barrier of the GI tract using the human colon adenocarcinoma cell line HT-29. To this end, the cells were differentiated for 21 days and then exposed to PS NPs followed by cytotoxicity assessment and transepithelial electrical resistance measurements. A minor disruption of barrier integrity was noted for COOH-PS NPs, but not for the NH2-PS NPs, while no overt cytotoxicity was observed for both NPs. This study provides evidence of the feasibility of applying label-free approaches, i.e., confocal Raman mapping, to study PS NPs in a biological system. 

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2023
Keywords
Cell culture, Mapping, Nanoparticles, Polystyrenes, Daphnia magna, Functionalized, Gastrointestinal tract, Global environmental problems, Human health, Label-free detection, Microplastics, Nanoplastics, Plastic particle, Polystyrene nanoparticles, High resolution transmission electron microscopy
National Category
Environmental Sciences
Identifiers
urn:nbn:se:ri:diva-65542 (URN)10.1039/d3na00323j (DOI)2-s2.0-85161612138 (Scopus ID)
Note

Supported by the Swedish Foundation for Strategic Environmental Research (MISTRA) through the MISTRA Environmental Nanosafety program.

Available from: 2023-06-28 Created: 2023-06-28 Last updated: 2024-06-10Bibliographically approved
Demidova, S. I., Whitehouse, M. J., Merle, R., Nemchin, A. A., Kenny, G. G., Brandstätter, F., . . . Dobryden, I. (2022). A micrometeorite from a stony asteroid identified in Luna 16 soil. Nature Astronomy, 6(5), 560-567
Open this publication in new window or tab >>A micrometeorite from a stony asteroid identified in Luna 16 soil
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2022 (English)In: Nature Astronomy, E-ISSN 2397-3366, Vol. 6, no 5, p. 560-567Article in journal (Refereed) Published
Abstract [en]

Despite the intense cratering history of the Moon, very few traces of meteoritic material have been identified in the more than 380 kg of samples returned to Earth by the Apollo and Luna missions. Here we show that an ~200-µm-sized fragment collected by the Luna 16 mission has extra-lunar origins and probably originates from an LL chondrite with similar properties to near-Earth stony asteroids. The fragment has not experienced temperatures higher than 400 °C since its protolith formed early in the history of the Solar System. It arrived on the Moon, either as a micrometeorite or as the result of the break-up of a bigger impact, no earlier than 3.4 Gyr ago and possibly around 1 Gyr ago, an age that would be consistent with impact ages inferred from basaltic fragments in the Luna 16 sample and of a known dynamic upheaval in the Flora asteroid family, which is thought to be the source of L and LL chondrite meteorites. These results highlight the importance of extra-lunar fragments in constraining the impact history of the Earth–Moon system and suggest that material from LL chondrite asteroids may be an important component. © 2022, The Author(s)

Place, publisher, year, edition, pages
Nature Research, 2022
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
urn:nbn:se:ri:diva-59062 (URN)10.1038/s41550-022-01623-0 (DOI)2-s2.0-85126761335 (Scopus ID)
Note

Funding details: Ministry of Education and Science of the Russian Federation, Minobrnauka, 075-15-2020-780, N13.1902.21.0039; Funding details: Vetenskapsrådet, VR, 2017-00671, 2017-04151, 2020-03828; Funding text 1: We thank F. Kirally (Vienna University) and D. Topa (NHM Vienna) for their help with microprobe analyses. S.I.D. acknowledges the support of the Ministry of Science and Higher Education of the Russian Federation under the grant 075-15-2020-780 (N13.1902.21.0039). M.J.W., A.A.N. and R.M. acknowledge support from Swedish Research Council (VR) grants 2017-04151 and 2020-03828. The NordSIMS facility is supported by VR research infrastructure grant 2017-00671; this is NordSIMS publication 704.

Available from: 2022-04-21 Created: 2022-04-21 Last updated: 2023-03-30Bibliographically approved
Zhao, W., Sugunan, A., Gillgren, T., Larsson, J. A., Zhang, Z.-B., Zhang, S.-L., . . . Ahniyaz, A. (2022). Surfactant-free starch-graphene composite films as simultaneous oxygen and water vapour barriers. npj 2D Materials and Applications, 6(1), Article ID 20.
Open this publication in new window or tab >>Surfactant-free starch-graphene composite films as simultaneous oxygen and water vapour barriers
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2022 (English)In: npj 2D Materials and Applications, ISSN 2397-7132, Vol. 6, no 1, article id 20Article in journal (Refereed) Published
Abstract [en]

A single coating formulation for multifunctional composites, such as a gas barrier against both oxygen and water vapour, is the holy grail for the packaging industry. Since the last decade, graphene has been touted as the ideal barrier material in composites due to its morphology and impermeability to all gases. However, this prospect is limited by either poor dispersion of graphene or excess surfactants to aid the dispersion, both leading to shortcuts that allow gas permeation through the composite. Here, we demonstrate a combined gas barrier with starch-graphene composite films made from a single formulation of surfactant-free starch nanoparticle-stabilized graphene dispersion (2.97 mg mL−1). Hence, the incorporated graphene reduces the permeability of both the oxygen and the water vapour by over 70% under all the relative humidity conditions tested. Moreover, these films are foldable and electrically conductive (9.5 S m−1). Our surfactant-free approach of incorporating graphene into an industrially important biopolymer is highly relevant to the packaging industry, thus offering cost-effective and water-based solution depositions of multifunctional composite films for wide-ranging applications, such as gas barriers in food packaging. © 2022, The Author(s).

Place, publisher, year, edition, pages
Nature Research, 2022
Keywords
Biopolymers, Composite films, Conductive films, Cost effectiveness, Dispersions, Gas permeable membranes, Oxygen, Starch, Surface active agents, Water vapor, Barrier material, Coating formulations, Gas barrier, Graphene composites, Multifunctional composites, Oxygen vapors, Packaging industry, Surfactant-free, Water vapour, Water vapour barrier, Graphene
National Category
Polymer Technologies
Identifiers
urn:nbn:se:ri:diva-59006 (URN)10.1038/s41699-022-00292-x (DOI)2-s2.0-85126771096 (Scopus ID)
Note

Funding details: Stiftelsen för Strategisk Forskning, SSF, FID-15-0105; Funding text 1: This work was financially supported by the Swedish Foundation for Strategic Research (SSF, grant no. FID-15-0105) and BillerudKorsnäs AB. The authors thank Karin Hallstensson for support with the SEM imaging, Mikael Sundin for performing the XPS analysis and Marie Ernstsson for interpreting the data, Andreas Fall and Niklas Nordgren for insightful discussions and review of the manuscript.; Funding text 2: This work was financially supported by the Swedish Foundation for Strategic Research (SSF, grant no. FID-15-0105) and BillerudKorsna?s AB. The authors thank Karin Hallstensson for support with the SEM imaging, Mikael Sundin for performing the XPS analysis and Marie Ernstsson for interpreting the data, Andreas Fall and Niklas Nordgren for insightful discussions and review of the manuscript.

Available from: 2022-04-21 Created: 2022-04-21 Last updated: 2023-05-09Bibliographically approved
Kretschmer, M., Ceña-Diez, R., Butnarasu, C., Silveira, V., Dobryden, I., Visentin, S., . . . Yan, H. (2022). Synthetic Mucin Gels with Self-Healing Properties Augment Lubricity and Inhibit HIV-1 and HSV-2 Transmission. Advanced Science, 9(32), Article ID 2203898.
Open this publication in new window or tab >>Synthetic Mucin Gels with Self-Healing Properties Augment Lubricity and Inhibit HIV-1 and HSV-2 Transmission
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2022 (English)In: Advanced Science, E-ISSN 2198-3844, Vol. 9, no 32, article id 2203898Article in journal (Refereed) Published
Abstract [en]

Mucus is a self-healing gel that lubricates the moist epithelium and provides protection against viruses by binding to viruses smaller than the gel's mesh size and removing them from the mucosal surface by active mucus turnover. As the primary nonaqueous components of mucus (≈0.2%–5%, wt/v), mucins are critical to this function because the dense arrangement of mucin glycans allows multivalence of binding. Following nature's example, bovine submaxillary mucins (BSMs) are assembled into “mucus-like” gels (5%, wt/v) by dynamic covalent crosslinking reactions. The gels exhibit transient liquefaction under high shear strain and immediate self-healing behavior. This study shows that these material properties are essential to provide lubricity. The gels efficiently reduce human immunodeficiency virus type 1 (HIV-1) and genital herpes virus type 2 (HSV-2) infectivity for various types of cells. In contrast, simple mucin solutions, which lack the structural makeup, inhibit HIV-1 significantly less and do not inhibit HSV-2. Mechanistically, the prophylaxis of HIV-1 infection by BSM gels is found to be that the gels trap HIV-1 by binding to the envelope glycoprotein gp120 and suppress cytokine production during viral exposure. Therefore, the authors believe the gels are promising for further development as personal lubricants that can limit viral transmission. © 2022 The Authors. 

Place, publisher, year, edition, pages
John Wiley and Sons Inc, 2022
Keywords
HIV-1, HSV-2, immune suppression, lubricant, mucin hydrogels, self-healing, strain-weakening, Crosslinking, Diseases, Gels, Hydrogels, Mammals, Self-healing materials, Shear strain, Sols, Herpes virus type 2, Human immunodeficiency virus, Human immunodeficiency virus type 1, Mesh size, Mucin hydrogel, Mucosal surface, Self-healing properties, Viruses
National Category
Physical Sciences
Identifiers
urn:nbn:se:ri:diva-60270 (URN)10.1002/advs.202203898 (DOI)2-s2.0-85137917305 (Scopus ID)
Note

Funding details: Deutsche Forschungsgemeinschaft, DFG, 111166240, 2017‐05848, 2020‐02129, SFB‐863; Funding details: Stiftelsen för Strategisk Forskning, SSF, FFL15‐0072; Funding details: Svenska Forskningsrådet Formas, 2015‐1316; Funding details: Kungliga Tekniska Högskolan, KTH; Funding details: Vetenskapsrådet, VR, 2014‐6203; Funding text 1: M.K. and R.C.‐D. contributed equally to this work. H.Y. and T.C. gratefully acknowledge financial support from the Swedish Foundation for Strategic Research (Grant No. FFL15‐0072), FORMAS (Grant No. 2015‐1316), the Swedish Research Council (Grant No. 2014‐6203), and the KTH Lifescience Platform Grant (2021). O.L. and M.K. gratefully acknowledge funding from the German Research Foundation (DFG) through SFB‐863 (Grant No. 111166240). A.S. and R.C. gratefully acknowledge grants from the Swedish Research Council (Grant Nos. 2017‐05848 and 2020‐02129). The authors thank Ms. Pacella F. for her help in preparing Figure 2C and Prof. E. Tyrode at KTH for discussion of the ATR‐FTIR data and analysis. The author thank Prof. Y. Hsieh for suggesting COMU/DIPEA coupling chemistry at KTH and Dr. P. Chives at KI for discussion during minor revision of the manuscript.

Available from: 2022-10-10 Created: 2022-10-10 Last updated: 2023-03-30Bibliographically approved
Attias, N., Reid, M., Mijowska, S., Dobryden, I., Isaksson, M., Pokroy, B., . . . Abitbol, T. (2021). Biofabrication of Nanocellulose–Mycelium Hybrid Materials. Advanced Sustainable Systems, 5(2), Article ID 2000196.
Open this publication in new window or tab >>Biofabrication of Nanocellulose–Mycelium Hybrid Materials
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2021 (English)In: Advanced Sustainable Systems, ISSN 2366-7486, Vol. 5, no 2, article id 2000196Article in journal (Refereed) Published
Abstract [en]

Healthy material alternatives based on renewable resources and sustainable technologies have the potential to disrupt the environmentally damaging production and consumption practices established throughout the modern industrial era. In this study, a mycelium–nanocellulose biocomposite with hybrid properties is produced by the agitated liquid culture of a white-rot fungus (Trametes ochracea) with nanocellulose (NC) comprised as part of the culture media. Mycelial development proceeds via the formation of pellets, where NC is enriched in the pellets and depleted from the surrounding liquid media. Micrometer-scale NC elements become engulfed in mycelium, whereas it is hypothesized that the nanometer-scale fraction becomes integrated within the hyphal cell wall, such that all NC in the system is essentially surface-modified by mycelium. The NC confers mechanical strength to films processed from the biocomposite, whereas the mycelium screens typical cellulose–water interactions, giving fibrous slurries that dewater faster and films that exhibit significantly improved wet resistance in comparison to pure NC films. The mycelium–nanocellulose biocomposites are processable in the ways familiar to papermaking and are suggested for diverse applications, including packaging, filtration, and hygiene products.

Place, publisher, year, edition, pages
Wiley-VCH Verlag, 2021
Keywords
biocomposite, cellulose nanocrystals, cellulose nanofibrils, mycelium, white-rot fungi, Cellulose, Cellulose films, Composite materials, Fungi, Nanocellulose, Pelletizing, Diverse applications, Hygiene products, Nano-meter scale, Production and consumption, Renewable resource, Surface-modified, Sustainable technology, Water interactions, Hybrid materials
National Category
Natural Sciences
Identifiers
urn:nbn:se:ri:diva-51216 (URN)10.1002/adsu.202000196 (DOI)2-s2.0-85096745923 (Scopus ID)
Available from: 2021-01-04 Created: 2021-01-04 Last updated: 2023-11-13Bibliographically approved
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ORCID iD: ORCID iD iconorcid.org/0000-0001-6877-9282

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