1984 …2020
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Research Output 1984 2019

2019
1 Citation (Scopus)

Chirality and bound water in the hierarchical cellulose structure

Paajanen, A., Ceccherini, S., Maloney, T. & Ketoja, J. A., 1 Jul 2019, In : Cellulose. 26, 10, p. 5877-5892 16 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Chirality
Cellulose
Water
Freezing
Natural fibers

Chirality and bound water in the hierarchical cellulose structure

Paajanen, A., Ceccherini, S., Maloney, T. & Ketoja, J., Apr 2019.

Research output: Contribution to conferenceConference AbstractScientificpeer-review

Chirality
Cellulose
Water
Water content
Fibers

Compression strength mechanisms of low-density fibrous materials

Ketoja, J. A., Paunonen, S., Jetsu, P. & Pääkkönen, E., 26 Jan 2019, In : Materials. 12, 3, 384.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Compaction
Fibers
Imaging techniques
Mechanical testing
Cellulose

Deformation dynamics in creasing and folding of board

Turpeinen, T., Tanaka, A., Suontausta, O. & Ketoja, J. A., 8 May 2019, Proceedings of the International Paper Physics Conference (PaperCon 2019). TAPPI Press, p. 232-240

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

strain rate
folding
geometry
delamination
shear strain

Enhancing mechanical performance of cellulose materials with designed structural complexity

Ketoja, J. A., Ivanova, A., Tanaka, A., Nurminen, I. & Kääriäinen, P., Apr 2019.

Research output: Contribution to conferenceConference AbstractScientificpeer-review

Cellulose
Fibers
Foams
Thermomechanical pulp
Packaging materials

Foam-fiber interaction in tailoring lightweight materials

Ketola, A., Hjelt, T., Lappalainen, T., Pajari, H., Tammelin, T., Ketoja, J. A., Xiang, W. & Rojas, O. J., Apr 2019.

Research output: Contribution to conferenceConference AbstractScientificpeer-review

Foams
Fibers
Surface-Active Agents
Silicon Dioxide
Cellulose

Revealing foam-fibre interactions in the production of lightweight materials: captive bubble study with model silica and cellulose surfaces

Ketola, A., Xiang, W., Hjelt, T., Lappalainen, T., Pajari, H., Tammelin, T., Ketoja, J. A. & Rojas, O. J., Jun 2019, Bubble and Drop Conference: Book of Abstracts. p. 26 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Cellulose
Silicon Dioxide
Foams
Fibers
Sodium Dodecyl Sulfate

Unique compression behavior of foam-formed sheets in wet pressing and calendering

Järvinen, M., Pihko, R., Nurminen, I. & Ketoja, J., 8 May 2019, Proceedings of the International Paper Physics Conference (PaperCon 2019). TAPPI Press, p. 181-194

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Pressing (forming)
Calendering
Foams
Compaction
Recovery
2018

Density development in foam forming: Wet pressing dynamics

Järvinen, M., Pihko, R. & Ketoja, J. A., 26 Jul 2018, In : Nordic Pulp and Paper Research Journal. 33, 2, p. 226-236 11 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Pressing (forming)
pressing
foams
foam
Foams

Foam-formed fibre materials: Tailoring material performance by foam-fibre interaction

Ketola, A., Hjelt, T., Pajari, H., Lappalainen, T., Tammelin, T. & Ketoja, J. A., Jul 2018. 1 p.

Research output: Contribution to conferenceConference AbstractScientificpeer-review

Foams
Fibers
Surface-Active Agents
Colloids
Air
1 Citation (Scopus)

Improving Compression Recovery of Foam-formed Fiber Materials

Paunonen, S., Timofeev, O., Torvinen, K., Turpeinen, T. & Ketoja, J., 2018, In : BioResources. 13, 2, p. 4058-4074 17 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
foam
Foams
Compaction
compression
Recovery

Towards nanoenabled bio-based future solutions by foam technologies

Torvinen, K., Heikkilä, P., Lappalainen, T., Jetsu, P., Forsström, U. & Ketoja, J., 1 Jan 2018, International Conference on Nanotechnology for Renewable Materials 2018. TAPPI Press, Vol. 1. p. 124-135 12 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

4 Citations (Scopus)

Versatile templates from cellulose nanofibrils for photosynthetic microbial biofuel production

Jämsä, M., Kosourov, S., Rissanen, V., Hakalahti, M., Pere, J., Ketoja, J. A., Tammelin, T. & Allahverdiyeva, Y., 14 Apr 2018, In : Journal of Materials Chemistry A: Materials for Energy and Sustainability. 6, 14, p. 5825-5835 11 p.

Research output: Contribution to journalArticleScientificpeer-review

oxidized cellulose
Biofuels
Cellulose
Algae
Hydrogels
2017

Atomistic simulations of cellulose nanofibrils and their aggregates in water

Paajanen, A., Sonavane, Y., Maloney, T., Paavilainen, S. & Ketoja, J., 2017.

Research output: Contribution to conferenceConference AbstractScientific

cellulose
water
simulation
penetration
disintegration
3 Citations (Scopus)

Design-driven integrated development of technical and perceptual qualities in foam-formed cellulose fibre materials

Härkäsalmi, T., Lehmonen, J., Itälä, J., Peralta, C., Siljander, S. & Ketoja, J., 2017, In : Cellulose. 24, 11, p. 5053-5068 16 p.

Research output: Contribution to journalArticleScientificpeer-review

Cellulose
Foams
Pulp
Fibers
Textures

Design-driven perspective in developing of technical and perceptual qualities in foam-formed cellulose fibre materials

Lehmonen, J., Ketoja, J., Tiina, H., Itälä, J., Peralta, C. & Siljander, S., 2017.

Research output: Contribution to conferenceOther conference contributionScientific

Enhancing mechanical performance of lightweight fibre structures with foam forming technology

Ketoja, J., Paunonen, S., Timofeev, O. & Torvinen, K., 2017.

Research output: Contribution to conferenceConference AbstractScientific

Foams
Fibers
Cellulose
Flocculation
Elasticity

Interaction of cellulose fibres with aqueous foam

Ketola, A., Hjelt, T., Pajari, H., Lappalainen, T., Tammelin, T. & Ketoja, J., 2017, Cellulose Materials Doctoral Students Conference 2017. Graz University of Technology, p. 99-100

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Maintaining bulk of foam formed structures in pressing and calendering

Pihko, R., Ketoja, J. & Nurminen, I., 1 Jan 2017, Paper Conference and Trade Show, PaperCon 2017: Renew, Rethink, Redefine the Future. TAPPI Press, Vol. 1. p. 563-570 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Novel biobased micro- and nanomaterials in porous foam formed structures

Torvinen, K., Pöhler, T., Lappalainen, T., Paajanen, A., Sirviö, J. & Ketoja, J., 1 Jan 2017, p. 165-175. 11 p.

Research output: Contribution to conferenceOther conference contributionScientific

Nanostructures
Nanostructured materials
Cellulose
Foams
Fibers
2 Citations (Scopus)

Structural properties and foaming of plant cell wall polysaccharide dispersions

Beatrice, C. A. G., Rosa-Sibakov, N., Lille, M., Sözer, N., Poutanen, K. & Ketoja, J. A., 1 Oct 2017, In : Carbohydrate Polymers. 173, p. 508-518 11 p.

Research output: Contribution to journalArticleScientificpeer-review

Polysaccharides
Nanofibers
Dispersions
Structural properties
Xylans

Surface interaction-driven immobilization of photosynthetically active cyanobacteria on cellulosic nanofibrils revealed by QCM-D

Rissanen, V., Kosourov, S., Jämsä, M., Hakalahti, M., Pere, J., Ketoja, J. A., Allahverdiyeva, Y. & Tammelin, T., Oct 2017.

Research output: Contribution to conferenceConference PosterScientific

2016

Aqueous foam as the carrier medium for producing tailored fiber materials

Ketoja, J., Al-Qararah, A., Hjelt, T., Jäsberg, A., Koponen, A. & Harlin, A., 2016, p. CELL 295.

Research output: Contribution to conferenceConference AbstractScientific

foams
bubbles
water
colloids
natural fibers
5 Citations (Scopus)

Atomistic molecular dynamics simulations on the interaction of TEMPO-oxidized cellulose nanofibrils in water

Paajanen, A., Sonavane, Y., Ignasiak, D., Ketoja, J. A., Maloney, T. C. & Paavilainen, S., 2016, In : Cellulose. 23, 6, p. 3449-3462

Research output: Contribution to journalArticleScientificpeer-review

oxidized cellulose
Disintegration
Molecular dynamics
Cellulose
Agglomeration
2 Citations (Scopus)
Mineral Oil
Mineral oils
Impurities
Packaging materials
Polyethylene Terephthalates
4 Citations (Scopus)

Porous structure of fibre networks formed by a foaming process: a comparative study of different characterization techniques

Al-Qararah, A. M., Ekman, A., Hjelt, T., Kiiskinen, H., Timonen, J. & Ketoja, J. A., 2016, In : Journal of Microscopy. 264, 1, p. 88-101

Research output: Contribution to journalArticleScientificpeer-review

X-Ray Microtomography
Mercury
Sample Size
Cellulose
Electron Scanning Microscopy

Tailoring the microporous structure of fibre materials with foam carrier

Hjelt, T., Al-Qararah, A. M., Pajari, H., Koponen, A., Laine, C., Lappalainen, T., Paananen, A. & Ketoja, J. A., 2016.

Research output: Contribution to conferenceConference AbstractScientific

bubbles
foams
microstructure
rheology
surfactants
2015
20 Citations (Scopus)

A unique microstructure of the fiber networks deposited from foam-fiber suspensions

Al-Qararah, A. M., Ekman, A., Hjelt, T., Ketoja, J. A., Kiiskinen, H., Koponen, A. & Timonen, J., 2015, In : Colloids and Surfaces A: Physicochemical and Engineering Aspects. 482, p. 544-553

Research output: Contribution to journalArticleScientificpeer-review

foams
Foams
Suspensions
microstructure
Microstructure

Fibre materials formed with aqueous foam as the carrier phase

Al-Qararah, A., Ekman, A., Hjelt, T., Ketoja, J., Kiiskinen, H., Koponen, A. & Timonen, J., 2015, 2nd International Conference on Rheology and Modeling of Materials: Book of Abstracts. Hungary, 113

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Open Access
foams
bubbles
natural fibers
water
paper pulp

Foam forming for tissue and nonwovens

Lehmonen, J., Pöhler, T., Hjelt, T., Kiiskinen, H., Hellén, E., Tanaka, A. & Ketoja, J., 2015, Paper Conference and Trade Show: PaperCon 2015. TAPPI Press, Vol. 2. p. 1390-1400 11 p.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Foam technologies in production and finishing of nonwoven materials

Heikkilä, P., Jetsu, P., Pöhler, T., Ketoja, J., Tanaka, A., Lehmonen, J., Kinnunen-Raudaskoski, Hjelt, T., Koskela, H., Forsström, U. & Harlin, A., 2015. 27 p.

Research output: Contribution to conferenceOther conference contributionScientific

Open Access
foams
finishing
production technology
air

Modified foam process to produce homogeneous laboratory sheets with 24mm fibers

Tanaka, A., Lehmonen, J., Pöhler, T. & Ketoja, J., 2015.

Research output: Contribution to conferenceConference articleScientific

foams
bubbles
sodium dodecyl sulfate
viscosity
viscose

Novel test approach for evaluating barrier properties of food contact materials against mineral oil contaminants

Laine, C., Pitkänen, M., Ohra-aho, T., Gestranius, M. & Ketoja, J., 2015, Book of Abstracts: 7th International Symposium on Recent Advances in Food Analysis. Pulkrabová, J., Tomaniová, M., Nielen, M. & Hajšlová, J. (eds.). University of Chemistry and Technology, Prague, 145

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Open Access
Mineral Oil
Impurities
Hydrocarbons
Food safety
Aromatic Hydrocarbons
10 Citations (Scopus)

Response of wet foam to fibre mixing

Al-Qararah, A. M., Hjelt, T., Koponen, A., Harlin, A. & Ketoja, J., 2015, In : Colloids and Surfaces A: Physicochemical and Engineering Aspects. 467, p. 97-106

Research output: Contribution to journalArticleScientificpeer-review

foams
Foams
fibers
Fibers
bubbles

The effect of physical adhesion promotion treatments on interfacial adhesion in cellulose-epoxy

Siljander, S., Lehmonen, J., Tanaka, A., Ketoja, J., Heikkilä, P., Putkonen, M., Lahti, J., Sarlin, E. & Vuorinen, J., 2015, Proceedings of 20th International Conference on Composite Material. 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Open Access
foams
epoxides
adhesion
cellulosic fibers
cellulose
2014

Carbon nanomaterial based membrane support for FO

Ketoja, J., Hjelt, T., Pirttimaa, M., Tang, C. Y. & Sarlin, J., 2014, Abstract Book. University of Aveiro, 326

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Osmosis
Nanostructured materials
Carbon
Porosity
Membranes

Cutting-edge technological developments for design driven world of cellulose

Heikkilä, P., Kataja, K., Salmela, J., Lehmonen, J., Ketoja, J., Hänninen, T., Härkäsalmi, T., Qvintus, P. & Harlin, A., 2014.

Research output: Contribution to conferenceConference PosterScientific

cellulose
textile products
viscose
dietary fiber
spinning

Design driven world of cellulose-from bulk to luxury?

Qvintus, P., Kataja, K., Heikkilä, P., Salmela, J., Lehmonen, J., Ketoja, J., Hänninen, T., Harlin, A., Härkäsalmi, T., Vuorinen, J. & Vuorinen, T., Jan 2014, Fibre Value Chain Conference and Expo 2014: Pulp and Paper Bioenergy Bioproducts. Appita, p. 67-74 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Cellulose
Yarn
Fibers
Industry
Spinning (fibers)
6 Citations (Scopus)

Drying of Pigment-Cellulose Nanofibril Substrates

Timofeev, O., Torvinen, K., Sievänen, J., Kaljunen, T., Kouko, J. & Ketoja, J., 2014, In : Materials. 7, 10, p. 6893-6907

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Pigments
Cellulose
Drying
Substrates
Hot pressing

Effect of fibres on wet foams

Ketoja, J., Al-Qararah, A., Hjelt, T., Koponen, A. & Harlin, A., 2014.

Research output: Contribution to conferenceOther conference contributionScientific

foams
bubbles
fibers
air
interfacial tension

Molecular dynamics simulation of functionalized nanofibrillar cellulose

Sonavane, Y., Paajanen, A., Ketoja, J., Paavilainen, S. & Maloney, T., 2014.

Research output: Contribution to conferenceConference AbstractScientific

Cellulose
Functional groups
Molecular dynamics
Oxidation
Computer simulation

Wet fibre-laden foams in axial mixing with macro-instabilities

Ketoja, J., Al-Qararah, A., Hjelt, T., Koponen, A. & Harlin, A., 2014.

Research output: Contribution to conferenceConference PosterScientific

foams
fibers
bubbles
air
interfacial tension

Wet fibre-laden foams in axial mixing with macro-instabilities

Al-Qararah, A., Hjelt, T., Koponen, A., Harlin, A. & Ketoja, J., 2014.

Research output: Contribution to conferenceConference AbstractScientific

foam
bubble
air
surface tension
inertia
2013
24 Citations (Scopus)

Bubble size and air content of wet fibre foams in axial mixing with macro-instabilities

Al.Qararah, A., Hjelt, T., Koponen, A., Harlin, A. & Ketoja, J., 2013, In : Colloids and Surfaces A: Physicochemical and Engineering Aspects. 436, p. 1130-1139 9 p.

Research output: Contribution to journalArticleScientificpeer-review

foams
Macros
Foams
bubbles
fibers
30 Citations (Scopus)

Filler-nanocellulose substrate for printed electronics: Experiments and model approach to structure and conductivity

Penttilä, A., Sievänen, J., Torvinen, K., Ojanperä, K. & Ketoja, J., 2013, In : Cellulose. 20, 3, p. 1413-1424 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Kaolin
Calcium Carbonate
Calcium carbonate
Fillers
Electronic equipment

Micro-rheology of nanocellulose suspensions with smoothed particle hydrodynamics simulations

Vidal, D., Al-Qararah, A., Ketoja, J. & Uesaka, T., 2013, Proceedings: Tappi International Conference on Nanotechnology for Renewable Materials 2013. TAPPI Press, p. 630-639

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Rheology
Particles (particulate matter)
Cellulose
Hydrodynamics
Viscosity
2012
23 Citations (Scopus)

Exceptional pore size distribution in foam-formed fibre networks

Al-Qararah, A., Hjelt, T., Kinnunen, K., Beletski, N. & Ketoja, J., 2012, In : Nordic Pulp and Paper Research Journal. 27, 2, p. 226-230 4 p.

Research output: Contribution to journalArticleScientificpeer-review

foams
foam
Pore size
bubbles
Foams
17 Citations (Scopus)

Mechanical properties of cellulose nanofibrils determined through atomistic molecular dynamics simulations

Paavilainen, S., McWhirter, J. L., Róg, T., Järvinen, J., Vattulainen, I. & Ketoja, J., 2012, In : Nordic Pulp and Paper Research Journal. 27, 2, p. 282-286 4 p.

Research output: Contribution to journalArticleScientificpeer-review

nanofibers
molecular dynamics
Cellulose
mechanical properties
Molecular dynamics

Web tension formation and web deformation in printing

Parola, M., Sorvari, J. & Ketoja, J., 2012. 4 p.

Research output: Contribution to conferenceConference articleScientific