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

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

Acetylated Nanocellulose for Single-Component Bioinks and Cell Proliferation on 3D-Printed Scaffolds

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

Production of bacterial nanocellulose (BNC) and its application as a solid support in transition metal catalysed cross-coupling reactions

Publishing year: 2019 International Journal of Biological Macromolecules
Biohybrid materials, Department of Bioproducts and Biosystems, Bio-based Colloids and Materials

Plasticized Cellulosic Films by Partial Esterification and Welding in Low-Concentration Ionic Liquid Electrolyte

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

Impact of oxidative carbonization on structure development of loblolly pine-derived biochar investigated by nuclear magnetic resonance spectroscopy and X-ray photoelectron spectroscopy

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

Self-Assembled Networks of Short and Long Chitin Nanoparticles for Oil/Water Interfacial Superstabilization

Publishing year: 2019 ACS Sustainable Chemistry and Engineering