Orlando Rojas Gaona
Department of Bioproducts and Biosystems

Orlando Rojas Gaona

Professor

Contact information

Postal address
Vuorimiehentie 1, 02150, Espoo
Mobile phone
+358505124227
Full researcher profile
https://research.aalto.fi/...

Description

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.

Areas of expertise

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

Honors and awards

Award or honor granted for a specific work
Department of Forest Products Technology
Jan 2015

Best Paper Award 2015 Bioresource Technology, Netherlands

Award or honor granted for a specific work
Department of Forest Products Technology
Jan 2015

Nanotechnology Division Award TAPPI, USA

Award or honor granted for a specific work
Department of Forest Products Technology
Jan 2015

Imerys FiberLean Prize IMERYS, USA

Award or honor granted for academic career
Department of Bioproducts and Biosystems
Jan 2017

Foreign Member of the Finnish Academy of Science and Letters

Award or honor granted for academic career
Department of Bioproducts and Biosystems
Jul 2013

Fellow of the American Chemical Society

Award or honor granted for a specific work
Department of Bioproducts and Biosystems
Jan 2009

Divisional Service Award, American Chemical Society

Publications

Bio-based Colloids and Materials, Department of Bioproducts and Biosystems, Aalto University

Oil-in-water Pickering emulsions via microfluidization with cellulose nanocrystals

Publishing year: 2019 FOOD HYDROCOLLOIDS
Bio-based Colloids and Materials, Department of Bioproducts and Biosystems, Aalto University

Oil-in-water Pickering emulsions via microfluidization with cellulose nanocrystals

Publishing year: 2019 FOOD HYDROCOLLOIDS
Department of Chemistry, Biohybrid materials, Department of Bioproducts and Biosystems, Aalto University, Bio-based Colloids and Materials, Department of Forest Products Technology

Soft cellulose II nanospheres

Publishing year: 2019 Nanoscale
Biohybrid materials, School services, CHEM, Department of Bioproducts and Biosystems, Bio-based Colloids and Materials

Asymmetric bipolar switch device for electrochemical processes

Publishing year: 2019 AIP ADVANCES
Department of Bioproducts and Biosystems, Bio-based Colloids and Materials, Department of Applied Physics

Electrolyte membranes based on ultrafine fibers of acetylated cellulose for improved and long-lasting dye-sensitized solar cells

Publishing year: 2019 Cellulose
New Energy Technologies, Department of Applied Physics, Department of Bioproducts and Biosystems, Bio-based Colloids and Materials

Nanocellulose and Nanochitin Cryogels Improve the Efficiency of Dye Solar Cells

Publishing year: 2019 ACS Sustainable Chemistry and Engineering
Bio-based Colloids and Materials, Department of Bioproducts and Biosystems

Surface Activity and Foaming Capacity of Aggregates Formed between an Anionic Surfactant and Non-Cellulosics Leached from Wood Fibers

Publishing year: 2019 Biomacromolecules
Department of Bioproducts and Biosystems, Bio-based Colloids and Materials

Lignin-based multiwall carbon nanotubes

Publishing year: 2019 Composites Part A: Applied Science and Manufacturing
Department of Bioproducts and Biosystems, Bio-based Colloids and Materials, Printing Technology

Nano-lignocellulose from recycled fibres in coatings from aqueous and ethanolic media

Publishing year: 2019 Nordic Pulp and Paper Research Journal
Bio-based Colloids and Materials, Department of Bioproducts and Biosystems

Experimental and Predictive Description of the Morphology of Wet-Spun Fibers

Publishing year: 2019 ACS Applied Polymer Materials