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Nordenström, Malin
Publikasjoner (9 av 9) Visa alla publikasjoner
Nordenström, M., Nystrom, G., Fall, A. & Wågberg, L. (2019). Colloidal gels and glasses from nanocelluloses. Paper presented at National Meeting of the American-Chemical-Society (ACS), MAR 31-APR 04, 2019, Orlando, FL. Abstracts of Papers of the American Chemical Society, 257
Åpne denne publikasjonen i ny fane eller vindu >>Colloidal gels and glasses from nanocelluloses
2019 (engelsk)Inngår i: Abstracts of Papers of the American Chemical Society, ISSN 0065-7727, Vol. 257Artikkel i tidsskrift, Meeting abstract (Annet vitenskapelig) Published
sted, utgiver, år, opplag, sider
AMER CHEMICAL SOC, 2019
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-257625 (URN)000478860502456 ()
Konferanse
National Meeting of the American-Chemical-Society (ACS), MAR 31-APR 04, 2019, Orlando, FL
Merknad

QC 20190918

Tilgjengelig fra: 2019-09-18 Laget: 2019-09-18 Sist oppdatert: 2019-09-18bibliografisk kontrollert
Benselfelt, T., Nordenström, M., Lindstrom, S. B. & Wågberg, L. (2019). Explaining the Exceptional Wet Integrity of Transparent Cellulose Nanofibril Films in the Presence of Multivalent Ions-Suitable Substrates for Biointerfaces. Advanced Materials Interfaces, 6(13), Article ID 1900333.
Åpne denne publikasjonen i ny fane eller vindu >>Explaining the Exceptional Wet Integrity of Transparent Cellulose Nanofibril Films in the Presence of Multivalent Ions-Suitable Substrates for Biointerfaces
2019 (engelsk)Inngår i: Advanced Materials Interfaces, ISSN 2196-7350, Vol. 6, nr 13, artikkel-id 1900333Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Cellulose nanofibrils (CNFs) assemble into water-resilient materials in the presence of multivalent counter-ions. The essential mechanisms behind these assemblies are ion-ion correlation and specific ion effects. A network model shows that the interfibril attraction indirectly influences the wet modulus by a fourth power relationship to the solidity of the network (E-w proportional to phi(4)). Ions that induce both ion-ion correlation and specific ion effects significantly reduce the swelling of the films, and due to the nonlinear relationship dramatically increase the wet modulus. Herein, this network model is used to explain the elastoplastic behavior of wet films of 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-oxidized, carboxymethylated, and phosphorylated CNFs in the presence of different counter-ions. The main findings are that the aspect ratio of the CNFs influences the ductility of the assemblies, that the bivalency of phosphorylate ligands probably limits the formation of interfibril complexes with divalent ions, and that a higher charge density increases the friction between fibrils by increasing the short-range attraction from ion-ion correlation and specific ion effects. These findings can be used to rationally design CNF materials for a variety of applications where wet strength, ductility, and transparency are important, such as biomaterials or substrates for bioelectronics.

sted, utgiver, år, opplag, sider
WILEY, 2019
Emneord
cellulose nanofibrils, ion-ion correlation, multivalent ions, network, specific ion effects
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-257579 (URN)10.1002/admi.201900333 (DOI)000478635700019 ()2-s2.0-85065451547 (Scopus ID)
Merknad

QC 20190920

Tilgjengelig fra: 2019-09-20 Laget: 2019-09-20 Sist oppdatert: 2019-11-11bibliografisk kontrollert
Benselfelt, T., Nordenström, M., Hamedi, M. & Wågberg, L. (2019). Ion-induced assemblies of highly anisotropic nanoparticles are governed by ion-ion correlation and specific ion effects. Nanoscale, 11(8), 3514-3520
Åpne denne publikasjonen i ny fane eller vindu >>Ion-induced assemblies of highly anisotropic nanoparticles are governed by ion-ion correlation and specific ion effects
2019 (engelsk)Inngår i: Nanoscale, ISSN 2040-3364, E-ISSN 2040-3372, Vol. 11, nr 8, s. 3514-3520Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Ion-induced assemblies of highly anisotropic nanoparticles can be explained by a model consisting of ion-ion correlation and specific ion effects: dispersion interactions, metal-ligand complexes, and local acidic environments. Films of cellulose nanofibrils and montmorillonite clay were treated with different ions, and their subsequent equilibrium swelling in water was related to important parameters of the model in order to investigate the relative importance of the mechanisms. Ion-ion correlation was shown to be the fundamental attraction, supplemented by dispersion interaction for polarizable ions such as Ca2+ and Ba2+, or metal-ligand complexes for ions such as Cu2+, Al3+ and Fe3+. Ions that form strong complexes induce local acidic environments that also contribute to the assembly. These findings are summarized in a comprehensive semi-quantitative model and are important for the design of nanomaterials and for understanding biological systems where specific ions are involved.

sted, utgiver, år, opplag, sider
Royal Society of Chemistry, 2019
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-245906 (URN)10.1039/c8nr10175b (DOI)000459504400008 ()30742178 (PubMedID)2-s2.0-85061966436 (Scopus ID)
Merknad

QC 20190308

Tilgjengelig fra: 2019-03-08 Laget: 2019-03-08 Sist oppdatert: 2019-04-08bibliografisk kontrollert
Kaldéus, T., Nordenström, M., Erlandsson, J., Wågberg, L. & Malmström, E. (2019). Redispersibility properties of dried cellulose nanofibrils - influence on structure and mechanical properties.
Åpne denne publikasjonen i ny fane eller vindu >>Redispersibility properties of dried cellulose nanofibrils - influence on structure and mechanical properties
Vise andre…
2019 (engelsk)Inngår i: Artikkel i tidsskrift (Annet vitenskapelig) Epub ahead of print
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-244055 (URN)
Merknad

QC 20190218

Tilgjengelig fra: 2019-02-15 Laget: 2019-02-15 Sist oppdatert: 2019-02-18bibliografisk kontrollert
Kaldéus, T., Nordenström, M., Carlmark, A., Wågberg, L. & Malmström, E. (2018). Insights into the EDC-mediated PEGylation of cellulose nanofibrils and their colloidal stability. Carbohydrate Polymers, 181, 871-878
Åpne denne publikasjonen i ny fane eller vindu >>Insights into the EDC-mediated PEGylation of cellulose nanofibrils and their colloidal stability
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2018 (engelsk)Inngår i: Carbohydrate Polymers, ISSN 0144-8617, E-ISSN 1879-1344, Vol. 181, s. 871-878Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

EDC-mediated coupling has frequently been utilized to poly(ethylene glycol) functionalize (PEGylate) cellulose-based materials, but no work has previously been reported on the direct N-(3-dimethylaminopropyl)-N-ethylcarbodiimide (EDC)-mediated PEGylation of cellulose nanofibrils (CNF). Herein, we report the first study where CNF has been directly sterically stabilized with amine-terminated PEG employing N-hydroxysuccinimide (NHS)-assisted EDC-coupling. This work has shown that this coupling reaction is highly sensitive to the reaction conditions and purification procedures, and hence an optimized coupling protocol was developed in order to achieve a reaction yield. Elemental analysis of the nitrogen content also showed the successful PEGylation. It was also shown that a surprisingly low PEGylation (1%) is sufficient to significantly improve the colloidal stability of the PEGylated samples, which reached dispersion-arrested-state-transitions at higher concentrations than neat CNF. The colloidal stability was preserved with increasing ionic strength, when comparably long polymer chains were grafted, targeting only 1% PEGylation.

sted, utgiver, år, opplag, sider
Elsevier, 2018
Emneord
Cellulose nanofibrils, Colloidal stability, PEGylation, Steric stabilization
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-220410 (URN)10.1016/j.carbpol.2017.11.065 (DOI)000418661000101 ()29254048 (PubMedID)2-s2.0-85037689178 (Scopus ID)
Merknad

QC 20171220

Tilgjengelig fra: 2017-12-20 Laget: 2017-12-20 Sist oppdatert: 2019-12-20bibliografisk kontrollert
Nordenström, M., Riazanova, A., Järn, M., Paulraj, T., Turner, C., Ström, V., . . . Svagan, A. (2018). Superamphiphobic coatings based on liquid-core microcapsules with engineered capsule walls and functionality. Scientific Reports, 8, Article ID 3647.
Åpne denne publikasjonen i ny fane eller vindu >>Superamphiphobic coatings based on liquid-core microcapsules with engineered capsule walls and functionality
Vise andre…
2018 (engelsk)Inngår i: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 8, artikkel-id 3647Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Microcapsules with specific functional properties, related to the capsule wall and core, are highly desired in a number of applications. In this study, hybrid cellulose microcapsules (1.2 +/- 0.4 mu m in diameter) were prepared by nanoengineering the outer walls of precursor capsules. Depending on the preparation route, capsules with different surface roughness (raspberry or broccoli-like), and thereby different wetting properties, could be obtained. The tunable surface roughness was achieved as a result of the chemical and structural properties of the outer wall of a precursor capsule, which combined with a new processing route allowed in-situ formation of silica nanoparticles (30-40 nm or 70 nm in diameter). By coating glass slides with "broccoli-like" microcapsules (30-40 nm silica nanoparticles), static contact angles above 150 degrees and roll-off angles below 6 degrees were obtained for both water and low surface-tension oil (hexadecane), rendering the substrate superamphiphobic. As a comparison, coatings from raspberry-like capsules were only strongly oleophobic and hydrophobic. The liquid-core of the capsules opens great opportunities to incorporate different functionalities and here hydrophobic superparamagnetic nanoparticles (SPIONs) were encapsulated. As a result, magnetic broccoli-like microcapsules formed an excellent superamphiphobic coating-layer on a curved geometry by simply applying an external magnetic field.

sted, utgiver, år, opplag, sider
NATURE PUBLISHING GROUP, 2018
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-225297 (URN)10.1038/s41598-018-21957-y (DOI)000426045700068 ()29483613 (PubMedID)2-s2.0-85042684065 (Scopus ID)
Merknad

QC 20180405

Tilgjengelig fra: 2018-04-05 Laget: 2018-04-05 Sist oppdatert: 2018-04-05bibliografisk kontrollert
Nordenström, M., Wågberg, L. & Ödberg, L. G. (2016). Colloidal interactions in nanocellulose systems. Abstracts of Papers of the American Chemical Society, 251
Åpne denne publikasjonen i ny fane eller vindu >>Colloidal interactions in nanocellulose systems
2016 (engelsk)Inngår i: Abstracts of Papers of the American Chemical Society, ISSN 0065-7727, Vol. 251Artikkel i tidsskrift, Meeting abstract (Annet vitenskapelig) Published
sted, utgiver, år, opplag, sider
AMER CHEMICAL SOC, 2016
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-242696 (URN)000431903802496 ()
Merknad

QC 20190221

Tilgjengelig fra: 2019-02-21 Laget: 2019-02-21 Sist oppdatert: 2019-08-21bibliografisk kontrollert
Wågberg, L., Fall, A. & Nordenström, M. (2016). Colloidal properties of cellulose nanofibrils. Abstracts of Papers of the American Chemical Society, 251
Åpne denne publikasjonen i ny fane eller vindu >>Colloidal properties of cellulose nanofibrils
2016 (engelsk)Inngår i: Abstracts of Papers of the American Chemical Society, ISSN 0065-7727, Vol. 251Artikkel i tidsskrift, Meeting abstract (Annet vitenskapelig) Published
sted, utgiver, år, opplag, sider
AMER CHEMICAL SOC, 2016
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-242704 (URN)000431903802390 ()
Merknad

QC 20190220

Tilgjengelig fra: 2019-02-20 Laget: 2019-02-20 Sist oppdatert: 2019-08-21bibliografisk kontrollert
Kaldéus, T., Nordenström, M., Erlandsson, J., Wågberg, L. & Malmström, E.Redispersibility properties of dried cellulose nanofibrils - influence on structure and mechanical properties.
Åpne denne publikasjonen i ny fane eller vindu >>Redispersibility properties of dried cellulose nanofibrils - influence on structure and mechanical properties
Vise andre…
(engelsk)Manuskript (preprint) (Annet vitenskapelig)
HSV kategori
Forskningsprogram
Fiber- och polymervetenskap
Identifikatorer
urn:nbn:se:kth:diva-244005 (URN)
Merknad

QCR 20190226

Tilgjengelig fra: 2019-02-12 Laget: 2019-02-12 Sist oppdatert: 2019-02-26bibliografisk kontrollert
Organisasjoner