Andreas Fall
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View article: Digital Cellulose: Recent Advances in Electroactive Paper
Digital Cellulose: Recent Advances in Electroactive Paper Open
With the increasing global demand for net-zero carbon emissions, actions to address climate change have gained momentum among policymakers and the public. The urgent need for a sustainable economy is underscored by the mounting waste crisi…
View article: The Fast and One-Step Growth of ZnO Nanorods on Cellulose Nanofibers for Highly Sensitive Photosensors
The Fast and One-Step Growth of ZnO Nanorods on Cellulose Nanofibers for Highly Sensitive Photosensors Open
Cellulose is the most abundant organic material on our planet which has a key role in our daily life (e.g., paper, packaging). In recent years, the need for replacing fossil-based materials has expanded the application of cellulose and cel…
View article: Setting priorities in CNF particle size measurement: What is needed vs. what is feasible
Setting priorities in CNF particle size measurement: What is needed vs. what is feasible Open
Measuring the size of cellulose nanomaterials can be challenging, especially in the case of branched and entangled cellulose nanofibrils (CNFs). The International Organization for Standardization, Technical Committee 6, Task Group 1—Cellul…
View article: The Colloidal Properties of Nanocellulose
The Colloidal Properties of Nanocellulose Open
Nanocelluloses are anisotropic nanoparticles of semicrystalline assemblies of glucan polymers. They have great potential as renewable building blocks in the materials platform of a more sustainable society. As a result, the research on nan…
View article: Assessing sustainability hotspots in the production of paper-based printed electronics
Assessing sustainability hotspots in the production of paper-based printed electronics Open
Novel printed electronics are projected to grow and be manufactured in the future in large volumes. In many applications, printed electronics are envisaged as sustainable alternatives to conventional (PCB-based) electronics. One such appli…
View article: A Paper‐Based Triboelectric Touch Interface: Toward Fully Green and Recyclable Internet of Things
A Paper‐Based Triboelectric Touch Interface: Toward Fully Green and Recyclable Internet of Things Open
The transition to a sustainable society is driving the development of green electronic solutions designed to have a minimal environmental impact. One promising route to achieve this goal is to construct electronics from biobased materials …
View article: Electrochromic Displays Screen Printed on Transparent Nanocellulose‐Based Substrates
Electrochromic Displays Screen Printed on Transparent Nanocellulose‐Based Substrates Open
Manufacturing of electronic devices via printing techniques is often considered to be an environmentally friendly approach, partially due to the efficient utilization of materials. Traditionally, printed electronic components (e.g., sensor…
View article: The effect of ionic strength and pH on the dewatering rate of cellulose nanofibril dispersions
The effect of ionic strength and pH on the dewatering rate of cellulose nanofibril dispersions Open
Cellulose nanofibrils, CNFs, show great potential in many application areas. One main aspect limiting the industrial use is the slow and energy demanding dewatering of CNF suspensions. Here we investigate the dewatering with a piston press…
View article: Spinning of Stiff and Conductive Filaments from Cellulose Nanofibrils and PEDOT:PSS Nanocomplexes
Spinning of Stiff and Conductive Filaments from Cellulose Nanofibrils and PEDOT:PSS Nanocomplexes Open
Research in smart textiles is growing due to the increased demand from the healthcare sector and people's urge to keep track of and analyze the signals and metrics from their bodies. Electrically conductive filaments are the most fundament…
View article: Use of Nanocellulose to Produce Water-Based Conductive Inks with Ag NPs for Printed Electronics
Use of Nanocellulose to Produce Water-Based Conductive Inks with Ag NPs for Printed Electronics Open
The need for more sustainable printed electronics has emerged in the past years. Due to this, the use of nanocellulose (NC) extracted from cellulose has recently been demonstrated to provide interesting materials such as functional inks an…
View article: Sustainable and Printable Nanocellulose-Based Ionogels as Gel Polymer Electrolytes for Supercapacitors
Sustainable and Printable Nanocellulose-Based Ionogels as Gel Polymer Electrolytes for Supercapacitors Open
A new gel polymer electrolyte (GPE) based supercapacitor with an ionic conductivity up to 0.32–0.94 mS cm−2 has been synthesized from a mixture of an ionic liquid (IL) with nanocellulose (NC). The new NC-ionogel was prepared by combining t…
View article: Production of energy-storage paper electrodes using a pilot-scale paper machine
Production of energy-storage paper electrodes using a pilot-scale paper machine Open
Rolls of supercapacitor electrodes have successfully been produced on a pilot paper machine with a novel material concept.
View article: Production of an energy-storage electrode paper using a pilot-scale paper machine
Production of an energy-storage electrode paper using a pilot-scale paper machine Open
The global electrification of our society requires an enormous capacity of electrical energy storage. This drives the demand for low-cost and sustainable solutions, where the electrode materials are key components. In the present work, all…
View article: The Effect of Ionic Strength and pH on the Dewatering Rate of Cellulose Nanofibril Dispersions
The Effect of Ionic Strength and pH on the Dewatering Rate of Cellulose Nanofibril Dispersions Open
Cellulose nanofibrils, CNFs, show a great potential in many application areas. One main aspect limiting the use of the material is the slow and energy demanding dewatering of CNF suspensions. Here we investigate the dewatering with a pisto…
View article: Nanocellulose based carbon ink and its application in electrochromic displays and supercapacitors
Nanocellulose based carbon ink and its application in electrochromic displays and supercapacitors Open
Conventional electronics have been highlighted as a very unsustainable technology; hazardous wastes are produced both during their manufacturing but also, due to their limited recyclability, during their end of life cycle (e.g. disposal in…
View article: Cross-Sections of Nanocellulose from Wood Analyzed by Quantized Polydispersity of Elementary Microfibrils
Cross-Sections of Nanocellulose from Wood Analyzed by Quantized Polydispersity of Elementary Microfibrils Open
Bio-based nanocellulose has been shown to possess impressive mechanical properties and simplicity for chemical modifications. The chemical properties are largely influenced by the surface area and functionality of the nanoscale materials. …
View article: Highly Conducting Nanographite-Filled Paper Fabricated via Standard Papermaking Techniques
Highly Conducting Nanographite-Filled Paper Fabricated via Standard Papermaking Techniques Open
Eco-friendly and cost-effective materials and processes to manufacture functional substrates are crucial to further advance the area of printed electronics. One potential key component in the printed electronics platform is an electrically…
View article: Laser-induced graphitization of a forest-based ink for use in flexible and printed electronics
Laser-induced graphitization of a forest-based ink for use in flexible and printed electronics Open
Laser-induced graphitization (LIG) is a method of converting a carbon-rich precursor into a highly conductive graphite-like carbon by laser scribing. This method has shown great promise as a versatile and low-cost patterning technique. Her…
View article: Inducing Nematic Ordering of Cellulose Nanofibers using Osmotic Dehydration
Inducing Nematic Ordering of Cellulose Nanofibers using Osmotic Dehydration Open
The formation and characterization of nematically-ordered CNF materials (maximum order parameter f ≈ 0.8) has been studied by polarized optical microscopy, small angle x-ray scattering (SAXS), and rheological measurements as a function of …
View article: Inducing Nematic Ordering of Cellulose Nanofibers using Osmotic Dehydration
Inducing Nematic Ordering of Cellulose Nanofibers using Osmotic Dehydration Open
The formation and characterization of nematically-ordered CNF materials (maximum order parameter f ≈ 0.8) has been studied by polarized optical microscopy, small angle x-ray scattering (SAXS), and rheological measurements as a function of …
View article: Inducing Nematic Ordering of Cellulose Nanofibers using Osmotic Dehydration
Inducing Nematic Ordering of Cellulose Nanofibers using Osmotic Dehydration Open
The formation and characterization of nematically-ordered CNF materials (maximum order parameter f ≈ 0.8) has been studied by polarized optical microscopy, small angle x-ray scattering (SAXS), and rheological measurements as a function of …
View article: Inducing nematic ordering of cellulose nanofibers using osmotic dehydration
Inducing nematic ordering of cellulose nanofibers using osmotic dehydration Open
The formation of nematically-ordered cellulose nanofiber (CNF) suspensions with an order parameter f max ≈ 0.8 is studied by polarized optical microscopy, small-angle X-ray scattering (SAXS), and rheological measurements as a function of C…
View article: Assembly of cellulose nanocrystals in a levitating drop probed by time-resolved small angle X-ray scattering
Assembly of cellulose nanocrystals in a levitating drop probed by time-resolved small angle X-ray scattering Open
The nanoscale assembly of cellulose nanocrystals from 1 vol% up to 38 vol% is investigated by in situ small angle X-ray scattering.
View article: Rod Packing in Chiral Nematic Cellulose Nanocrystal Dispersions Studied by Small-Angle X-ray Scattering and Laser Diffraction
Rod Packing in Chiral Nematic Cellulose Nanocrystal Dispersions Studied by Small-Angle X-ray Scattering and Laser Diffraction Open
The packing of cellulose nanocrystals (CNC) in the anisotropic chiral nematic phase has been investigated over a wide concentration range by small-angle X-ray scattering (SAXS) and laser diffraction. The average separation distance between…
View article: Multicolor Fluorescent Labeling of Cellulose Nanofibrils by Click Chemistry
Multicolor Fluorescent Labeling of Cellulose Nanofibrils by Click Chemistry Open
We have chemically modified cellulose nanofibrils (CNF) with furan and maleimide groups, and selectively labeled the modified CNF with fluorescent probes; 7-mercapto-4-methylcoumarin and fluorescein diacetate 5-maleimide, through two speci…