A5036393152- Advanced Cellulose Research Studies
- Lignin and Wood Chemistry
- Nanocomposite Films for Food Packaging
- NMR spectroscopy and applications
- Electrospun Nanofibers in Biomedical Applications
- Polysaccharides and Plant Cell Walls
- biodegradable polymer synthesis and properties
- Dyeing and Modifying Textile Fibers
- Liquid Crystal Research Advancements
- Catalysis for Biomass Conversion
- Extraction and Separation Processes
- Material Properties and Processing
- Microencapsulation and Drying Processes
- Advanced NMR Techniques and Applications
- Chemistry and Chemical Engineering
- Wood Treatment and Properties
- Research in Social Sciences
- Characterization and Applications of Magnetic Nanoparticles
- Advanced Materials and Mechanics
- Adsorption, diffusion, and thermodynamic properties of materials
- Algal biology and biofuel production
- Enzyme-mediated dye degradation
- Aerogels and thermal insulation
- Drug Solubulity and Delivery Systems
- Electromagnetic wave absorption materials
VTT Technical Research Centre of Finland
2016-2023
Tieto (Finland)
2019-2021
Espoo Music Institute
2019
University of Helsinki
2007-2015
Swedish Chemicals Agency
2008
Torrefaction is the thermal pretreatment of biomass at temperatures 200–300 °C in an inert atmosphere with objectives improving resistance to biodegradation, reducing hydrophilicity, grindability and increasing energy density. In this work, we studied effect torrefaction temperature (240–280 °C) on chemistry birch wood. The samples were from a pilot plant ECN, that way, they representative industrially produced samples. We have measured concentration hemicellulose cellulose; changes...
Poultry feathers, a source of keratin, are significant side stream from the food industry, for which valorization is essential considering circular economy aspects. For this, ecofriendly processes tools that allow easy and feasible transformation feathers. Deep eutectic solvents (DESs) generally considered as inexpensive, relatively simple, mild environmentally friendly can dissolve proteins protein-rich biomasses. In this work, feathers were processed with an aqueous DES to produce uniform...
Abstract The substitution of phenol by lignin in phenol-formaldehyde (PF) resins is one the most promising end uses valorization. Lignin from grasses and softwood has been focus studies this field as they present a higher number theoretical reactive sites for resin synthesis. Herein we examined composition chemical reactivity “less-reactive” hardwood fractions their performance PF resins, synthesized substituting 50 wt% with lignin. Before synthesis, samples were hydroxymethylated maximum...
Plant-based cellulosic materials are intriguing building blocks for functional materials, and sustainable nanocellulose production strategies have been intensively explored. Most of the existing strategies, however, suffer from fact that highly energy-intensive fiber fibrillation yields a gel containing more than 95% water. We showcase high throughput method nanocellulose, which primarily exploits efficiency enzymatic actions to disintegrate pulp fibers at notable solid content (25 wt %)...
A new type of polysaccharide (hemicellulose) nanocrystal, bearing the shape an anisotropic nanoflake, emerged from a dimethyl sulfoxide (DMSO) dispersion wood-based xylan through heat-induced crystallization. The dimensions these nanocrystals were controlled by crystallization conditions. Sharp signals in solid-state NMR indicated well-ordered crystal structure. unit cell is constituted two asymmetric xylose residues, and DMSO molecules resided host–guest arrangement with more than one local...
Abstract Green chemistry, sustainability and eco-efficiency are guiding the development of next generation industrial chemical processes. The use non-edible lignocellulosic biomass as a source chemicals fuels has recently raised interest due to need for an alternative fossil resources. Valorisation mainly focuses on cellulose, which been used various scale applications decades. However, creating economically more viable value chain would require exploitation other main components,...
Abstract The conversion of biomass and natural wastes into carbon‐based materials for various applications such as catalysts energy‐related is a fascinating sustainable approach emerged during recent years. Precursor nature characteristics are complex, hence, their effect on the properties resulting still unclear. In this work, we have investigated different precursors pyrolysis temperature produced carbon potential application negative electrode in Li‐ion batteries. Three biomasses,...
A wood based yarn platform for capturing pharmaceutical molecules from water was developed. Cellulose fiber yarns were modified with cyclodextrins, and the capture of 17α-ethinyl estradiol (EE2), a synthetic estrogen hormone used as contraceptive, tested. The prepared by spinning deep eutectic solution (DES) cellulose in choline chloride-urea. Despite their high porosity sorption capacity (5 g/g), spun displayed wet strength, up to 60% that recorded dry condition (128 MPa 17% strain at...
Feathers, an industrial by-product, are a valuable source of keratin that could be used, for example, in the preparation films biomedical and packaging applications. However, utilisation feather requires scalable processes to convert feathers into feasible stream. This paper shows how deep eutectic solvent (DES) fractionated converted strong films. In DES fractionation process, two fractions with different molecular weights were obtained. The made high weight fraction had better mechanical...
Abstract Development of physical properties bleached eucalyptus kraft pulp is typically based on the refining process. However, many studies have reported that xylan deposition a viable alternative. As mechanisms and cellulose interactions are not clear, main goal this study was to achieve better understanding these interactions. Considering sample enriched with very complex matrix, model system developed. Cellulosic thin films were prepared by spincoating Langmuir-Schaefer (LS) method from...
Abstract Natural materials, such as silk and cellulose, have an inspiring set of properties, which evolved over hundreds millions years. In this study, cellulose nanocrystals (CNCs) regenerated fibroin (RSF) are combined to evaluate their suitability for filament formation. This is assessed by tuning characterizing the interactions between these two materials finally studying alignment mixtures under shear. To modify CNCs silk, with varying surface functionalities (sulfate and/or aminosilane...