• Vuorimiehentie 1, 02150, Espoo

20082020

Research output per year

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Personal profile

Artistic and research interests

Members of my BiCMat group conduct multidisciplinary research with our core activities involving biobased materials at different size scales, mainly those displaying large interfacial areas such as fibers (micro/nano fibers), fiber networks, particles and colloidal systems. Some examples of materials of interest include nano/microfibrillar cellulose, cellulose nanocrystals, lignin particles, fat colloids, chitin, alginates, proteins and biopolymer assemblies. Typical efforts in our labs involve thin films, cellulose derivatives, enzymes and bio-based dispersions, emulsions, foams, gels, aerogels and others. We study the adsorption behaviors of surfactants and biopolymers at interphases and at the solid/liquid and liquid/air interfaces using techniques such as piezoelectric and surface plasmon sensing, XPS and other spectroscopic techniques, AFM, imaging, light scattering, etc.

Keywords

  • Colloids
  • Nanotecnology
  • Nanofibrillar cellulose
  • Chemical Engineering
  • Cellulosic surfaces
  • Surface chemistry
  • Polymer physics
  • Soft matter
  • Nanocellulose

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Research Output

Cellulose as the in situ reference for organic XPS. Why? Because it works

Johansson, L-S., Campbell, J. M. & Rojas, O. J., 22 Feb 2020, In : Surface and Interface Analysis. 5 p.

Research output: Contribution to journalArticleScientificpeer-review

Charge Matters: Electrostatic Complexation As a Green Approach to Assemble Advanced Functional Materials

Otoni, C. G., Queirós, M. V. A., Sabadini, J. B., Rojas, O. J. & Loh, W., 2020, In : ACS Omega. 5, 3, p. 1296-1304

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
  • 9 Downloads (Pure)

    Coaxial Spinning of All-Cellulose Systems for Enhanced Toughness : Filaments of Oxidized Nanofibrils Sheathed in Cellulose II Regenerated from a Protic Ionic Liquid

    Reyes, G., Lundahl, M. J., Alejandro-Martín, S., Arteaga-Pérez, L. E., Oviedo, C., King, A. W. T. & Rojas, O. J., 10 Feb 2020, In : Biomacromolecules. 21, 2, p. 878-891

    Research output: Contribution to journalArticleScientificpeer-review

  • Cogrinding Wood Fibers and Tannins: Surfactant Effects on the Interactions and Properties of Functional Films for Sustainable Packaging Materials

    L. Missio, A., Dufau Mattos, B., Gomide Otoni, C., Gentil, M., Coldebella, R., Khakalo, A., A. Gatto, D. & Rojas Gaona, O., 11 May 2020, In : Biomacromolecules. 21, 5, p. 1865-1874 10 p.

    Research output: Contribution to journalArticleScientificpeer-review

  • Comparative screening of the structural and thermomechanical properties of FDM filaments comprising thermoplastics loaded with cellulose, carbon and glass fibers

    Karakoç, A., Rastogi, V. K., Isoaho, T., Tardy, B., Paltakari, J. & Rojas, O. J., 1 Jan 2020, In : Materials. 13, 2, 422.

    Research output: Contribution to journalArticleScientificpeer-review

    Open Access
    File
  • 13 Downloads (Pure)

    Projects

    TUTLI-SolvingtheMesh WP1 Techn

    Rojas Gaona, O. & Ajdary, R.

    01/02/202031/12/2021

    Project: Business Finland: New business from research ideas (TUTLI)

    FlagShip CERES Events

    Rojas Gaona, O.

    01/05/201831/12/2022

    Project: Academy of Finland: Other research funding

    FlagShip CERES Common

    Khatir, A., Hassinen, J. & Rojas Gaona, O.

    01/05/201831/12/2022

    Project: Academy of Finland: Other research funding

    Prizes

    Best Paper Award 2015 Bioresource Technology, Netherlands

    Orlando Rojas Gaona (Recipient), 2015

    Prize: Award or honor granted for a specific work

    Divisional Service Award, American Chemical Society

    Orlando Rojas Gaona (Recipient), 2009

    Prize: Award or honor granted for a specific work

    Fellow of the American Chemical Society

    Orlando Rojas Gaona (Recipient), Jul 2013

    Prize: Award or honor granted for academic career

    Foreign Member of the Finnish Academy of Science and Letters

    Orlando Rojas Gaona (Recipient), 2017

    Prize: Award or honor granted for academic career

    Imerys FiberLean Prize IMERYS, USA

    Orlando Rojas Gaona (Recipient), 2015

    Prize: Award or honor granted for a specific work

    Activities

    Synthesis of polyphenol-based nano- and microparticles from tannic acid

    Tero Kämäräinen (Speaker), Mariko Ago (Contributor), Luiz Garcia Greca (Contributor), Blaise Tardy (Contributor), Markus Müllner (Contributor), Leena-Sisko Johansson (Contributor), Orlando Rojas Gaona (Contributor)
    4 Apr 2019

    Activity: Talk or presentation typesConference presentation

    Harmonic analysis of surface instability patterns on colloidal lignin

    Tero Kämäräinen (Speaker), Mariko Ago (Contributor), Jani Seitsonen (Contributor), Janne Raula (Contributor), Esko Kauppinen (Contributor), Janne Ruokolainen (Contributor), Orlando Rojas Gaona (Contributor)
    1 Apr 2019

    Activity: Talk or presentation typesConference presentation

    Textiles Tomorrow Summit

    Kirsi Niinimäki (Chair), Pirjo Kääriäinen (Chair), Maarit Salolainen (Chair), Tiina Paavilainen (Organiser), Petra Haikonen (Organiser), Hilkka-Maija Fagerlund (Organiser), Pirita Lauri (Organiser), Anna-Mari Leppisaari (Organiser), Oldouz Moslemian (Organiser), Lidewij Edelkoort (Member), Michael Hummel (Participant), Harri Puputti (Participant), Helena Hyvönen (Participant), Zane Berzina (Participant), Mark Van Vorstenbos (Participant), Kati Miettunen (Participant), Jouni Partanen (Participant), Orlando Rojas Gaona (Participant), Yu Xiao (Participant), Hil Driessen (Participant), Tonje Kristensen Johnstone (Participant), Essi Johanna Glomb (Participant), Marija Jenko (Participant), Preethi Gopinath (Participant), Gabriel Asfour (Participant), Maartje Boer (Participant), Tina Downes (Participant), Beata Hamalwa (Participant), Louise Ravnlokke (Participant), Karen Marie Hasling (Participant), Riikka Räisänen (Participant), Alexia Venot (Participant), Antonin Mongin (Participant), Jenni Fisk (Participant), Mari Nurmenniemi (Participant), Elina Laitinen (Participant), Talisa Dwiyani (Participant), Outi Les Pyy (Participant), Maarit Aakko (Organiser), Marium Durrani (Organiser), Essi Karell (Organiser), Emmi Pakkanen (Organiser), Jenna Ervasti (Organiser), Eeva Suorlahti (Organiser), Hanna-Kaisa Korolainen (Organiser), Tiina Saivo (Organiser), Helmi Liikanen (Organiser)
    30 Oct 201931 Oct 2019

    Activity: Participating in or organising an event typesMembership of a scientific or program committee of a conference or seminar

    File

    3D-Structured cellulose biofilms and applications

    Luiz Garcia Greca (Contributor), Janika Lehtonen (Contributor), Blaise Tardy (Contributor), Orlando Rojas Gaona (Speaker)
    30 Aug 2017

    Activity: Talk or presentation typesConference presentation

    Aalto University (Organisational unit)

    Orlando Rojas Gaona (Chair)
    2017

    Activity: Membership typesPosition of trust in an academic community

    Press / Media

    INDA opens registration for 10th RISE sustainability forum

    Orlando Rojas Gaona

    25/06/2020

    1 item of Media coverage

    Press/Media: Media appearance

    RISE CONFERENCE PRESENTS "WHAT'S NEXT" IN SUSTAINABILITY

    Orlando Rojas Gaona

    24/06/2020

    1 item of Media coverage

    Press/Media: Media appearance

    RISE® Conference Presents “What’s Next” in Sustainability

    Orlando Rojas Gaona

    24/06/2020

    1 item of Media coverage

    Press/Media: Media appearance

    Canadian researchers develop biodegradable face mask

    Orlando Rojas Gaona

    19/06/2020

    1 item of Media coverage

    Press/Media: Media appearance