Jukka Ketoja

Principal Scientist

  • Phone+358405476146
1984 …2021

Research output per year

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Research Output

2020

Bubble Attachment to Cellulose and Silica Surfaces of Varied Surface Energies: Wetting Transition and Implications in Foam Forming

Ketola, A. E., Xiang, W., Hjelt, T., Pajari, H., Tammelin, T., Rojas, O. J. & Ketoja, J. A., Jul 2020, In : Langmuir : the ACS journal of surfaces and colloids. 36, 26, p. 7296-7308 13 p.

Research output: Contribution to journalArticleScientificpeer-review

Combining scattering analysis and atomistic simulation of wood-water interactions

Penttilä, P. A., Paajanen, A. & Ketoja, J. A., 9 Sep 2020, In : Carbohydrate Polymers. 251, 117064.

Research output: Contribution to journalReview ArticleScientificpeer-review

Open Access

Crossover from mean-field compression to collective phenomena in low-density foam-formed fiber material

Mäkinen, T., Koivisto, J., Pääkkönen, E., Ketoja, J. A. & Alava, M. J., 2020, In : Soft Matter. 16, 29, p. 6819-6825 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
1 Citation (Scopus)

General mean-field theory to describe compression of thick porous fibre networks

Ketoja, J. A., Paunonen, S., Pääkkönen, E., Pöhler, T., Mäkinen, T., Koivisto, J. & Alava, M., 1 Sep 2020, Progress in Paper Physics Seminar PPPS2020: Book of abstracts. Kouko, J., Lehto, J. & Tuovinen, T. (eds.). Helsinki: VTT Technical Research Centre of Finland, p. 55-58 (VTT Technology; No. 378).

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

Open Access

High Internal Phase Oil-in-Water Pickering Emulsions Stabilized by Chitin Nanofibrils: 3D Structuring and Solid Foam

Zhu, Y., Huan, S., Bai, L., Ketola, A., Shi, X., Zhang, X., Ketoja, J. A. & Rojas, O. J., 4 Mar 2020, In : ACS Applied Materials and Interfaces. 12, 9, p. 11240-11251 12 p.

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

On the strength improvement of lightweight fibre networks by polymers, fibrils and fines

Pöhler, T., Ketoja, J. A., Lappalainen, T., Luukkainen, V., Nurminen, I., Lahtinen, P. & Torvinen, K., 1 Aug 2020, In : Cellulose. 27, 12, p. 6961-6976 16 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
1 Citation (Scopus)
14 Downloads (Pure)

Wet strength properties of foam formed fiber materials

Seppänen, T., Ketoja, J., Pöhler, T. & Pääkkönen, E., 1 Sep 2020, Progress in Paper Physics Seminar: Abstract book of the PPPS2020 seminar. Kouko, J., Lehto, J. & Tuovinen, T. (eds.). VTT Technical Research Centre of Finland, p. 281-283 (VTT Technology; No. 378).

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

Open Access
2019

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 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
11 Citations (Scopus)

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
4 Citations (Scopus)

Converting CO2 to biofuels with photosynthetic microalgae immobilized in cellulose nanofibrils

Rissanen, V., Jämsä, M., Kosourov, S., Ketoja, J. A., Allahverdiyeva, Y. & Tammelin, T., 2019, Abstracts of Papers, 257th ACS National Meeting & Exposition, Orlando, FL, United States, Mar. 31-Apr. 4, 2019. American Chemical Society ACS, 1 p. CELL-0314. (Abstracts of Papers: The American Chemical Society).

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

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

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

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, Abstracts of Papers, 257th ACS National Meeting & Exposition, Orlando, FL, United States, Mar. 31-Apr. 4, 2019. American Chemical Society ACS, CELL-0209. (Abstracts of Papers: The American Chemical Society).

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

How Cellulose Nanofibrils Affect Bulk, Surface, and Foam Properties of Anionic Surfactant Solutions

Xiang, W., Preisig, N., Ketola, A., Tardy, B. L., Bai, L., Ketoja, J. A., Stubenrauch, C. & Rojas, O. J., 9 Dec 2019, In : Biomacromolecules. 20, 12, p. 4361-4369 9 p.

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

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

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

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
2 Citations (Scopus)

Effect of cellulosic fibers on foam dynamics

Xiang, W., Preisig, N., Stubenrauch, C., Tardy, B., Laine, C., Tammelin, T., Ketoja, J. A. & Rojas, O. J., Mar 2018.

Research output: Contribution to conferenceConference AbstractScientificpeer-review

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

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
3 Citations (Scopus)

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

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

7 Citations (Scopus)
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

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

6 Citations (Scopus)

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

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

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

3 Citations (Scopus)

Studies related to mineral oil migration to food from different kinds of packaging solutions

Pitkänen, M., Ohra-aho, T., Laine, C., Gestranius, M. & Ketoja, J., 2017.

Research output: Contribution to conferenceConference articleScientific

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

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

10 Citations (Scopus)
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

5 Citations (Scopus)

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

2015

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

27 Citations (Scopus)

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

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

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

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

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

14 Citations (Scopus)

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
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

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

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

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
7 Citations (Scopus)