M
Marjo Pääkkö
Researcher at Helsinki University of Technology
Publications - 9
Citations - 3085
Marjo Pääkkö is an academic researcher from Helsinki University of Technology. The author has contributed to research in topics: Aerogel & Nanocellulose. The author has an hindex of 6, co-authored 9 publications receiving 2825 citations. Previous affiliations of Marjo Pääkkö include Aalto University & University of Helsinki.
Papers
More filters
Journal ArticleDOI
Enzymatic hydrolysis combined with mechanical shearing and high-pressure homogenization for nanoscale cellulose fibrils and strong gels.
Marjo Pääkkö,Mikael Ankerfors,Harri Kosonen,Antti Nykänen,Susanna Ahola,Monika Österberg,Janne Ruokolainen,Janne Laine,Per Tomas Larsson,Olli Ikkala,Tom Lindström +10 more
TL;DR: Mild enzymatic hydrolysis has been introduced and combined with mechanical shearing and a high-pressure homogenization, leading to a controlled fibrillation down to nanoscale and a network of long and highly entangled cellulose I elements.
Journal ArticleDOI
Long and entangled native cellulose I nanofibers allow flexible aerogels and hierarchically porous templates for functionalities
Marjo Pääkkö,Jaana Vapaavuori,Riitta Silvennoinen,Harri Kosonen,Mikael Ankerfors,Tom Lindström,Lars Berglund,Olli Ikkala +7 more
TL;DR: Paakko et al. as mentioned in this paper demonstrate that such aqueous nanofibrillar gels are unexpectedly robust to allow formation of highly porous aerogels by direct water removal by freeze-drying.
Native cellulose I nanofibers allow flexible aerogels and hierarchically porous templates for functionalities
Marjo Pääkkö,Jaana Vapaavuori,Riitta Silvennoinen,Harri Kosonen,Robin H. A. Ras,Mikael Ankerfors,Tom Lindström,Lars Berglund,Olli Ikkala +8 more
TL;DR: For example, native cellulose I nanofibers allow flexible aerogels and hierarchically porous templates for functionalities as discussed by the authors. But they are not suitable for aerogel fabrication.
Journal ArticleDOI
Highly water repellent aerogels based on cellulose stearoyl esters
TL;DR: It is shown here that low degree of substitution of the fatty acid cellulose material enables the spontaneous formation of aerogels and can allow sustainable and completely bio-based coatings and insulators paving the way for a new green application potential for cellulose based materials.
Journal ArticleDOI
Solid state nanofibers based on self-assemblies : from cleaving from self-assemblies to multilevel hierarchical constructs
Olli Ikkala,Robin H. A. Ras,Nikolay Houbenov,Janne Ruokolainen,Marjo Pääkkö,Janne Laine,Markku Leskelä,Lars Berglund,Tom Lindström,Gerrit ten Brinke,Hermis Iatrou,Nikos Hadjichristidis,Charl F. J. Faul +12 more
TL;DR: This work addresses routes for solid nanofibers based on different forms of self-assemblies and discusses rational "bottom-up" routes for multi-level hierarchical self-assembled constructs, with the aim of learning more about design principles for competing interactions and packing frustrations.