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Customer publications

Customer publications

High Stiffness Cellulose Fibers from Low Molecular Weight Microcrystalline Cellulose Solutions Using DMSO as Co-Solvent with Ionic Liquid

Zhu, Chenchen; Koutsomitopoulou, Anastasia F.; Eichhorn, Stephen J.; Duijneveldt, Jeroen S. van; Richardson, Robert M.; Nigmatullin, Rinat; Potter, Kevin D.

There is a need to develop high-performance cellulose fibers as sustainable replacements for glass fibers, and as alternative precursors for carbon filaments. Traditional fiber spinning uses toxic solvents, but in this study, by using dimethyl sulfoxide (DMSO) as a co-solvent with an ionic liquid, a novel high-performance fiber with exceptional…
12 March 2019
Customer publications

3D Orientational Control in Self-Assembled Thin Films with Sub-5 nm Features by Light

Nickmans, Koen; Bögels, Gerardus M.; Sánchez‐Somolinos, Carlos; Murphy, Jeffrey N.; Leclère, Philippe; Voets, Ilja K.; Schenning, Albertus P. H. J.

While self-assembled molecular building blocks could lead to many next-generation functional organic nanomaterials, control over the thin-film morphologies to yield monolithic sub-5 nm patterns with 3D orientational control at macroscopic length scales remains a grand challenge. A series of photoresponsive hybrid oligo(dimethylsiloxane) liquid crystals that form periodic cylindrical…
12 March 2019
Customer publications

Morphology orientation of comb-like polymers with rigid backbones under the influence of shear fields

Gupta, Gaurav; Danke, Varun; Babur, Tamoor; Beiner, Mario

The influence of shear fields on the packing behavior and morphology orientation arestudied for two comb-like polymers viz. poly(1,4-phenylene-2,5-didecyloxy terephthalate) (PPDOT)and poly(2,5-didecyloxy-1,4-phenylenevinylene) (DOPPV) with different rigid backbones having C =10 alkyl carbons per side chain. Crystallographic analysis based on X-ray diffractometry measurementsshows that both PPDOT…
12 March 2019
Customer publications

The UV filtering potential of drop-casted layers of frustules of three diatom species

Su, Yanyan; Lenau, Torben A.; Gundersen, Emil; Kirkensgaard, Jacob J. K.; Maibohm, Christian; Pinti, Jérôme; Ellegaard, Marianne

Diatoms are in focus as biological materials for a range of photonic applications. Many of these applications would require embedding a multitude of diatoms in a matrix (e.g. paint, crème or lacquer); however, most studies on the photonic and spectral properties of diatoms frustules (silica walls) have been carried out…
12 March 2019
Customer publications

Understanding Thermal Insulation in Porous, Particulate Materials

Ruckdeschel, Pia; Philipp, Alexandra; Retsch, Markus

Silica hollow nanosphere colloidal crystals feature a uniquely well-defined structure across multiple length scales. This contribution elucidates the intricate interplay between structure and atmosphere on the effective thermal diffusivity as well as the effective thermal conductivity. Using silica hollow sphere assemblies, one can independently alter the particle geometry, the density,…
12 March 2019
Customer publications

Successful reprogramming of cellular protein production through mRNA delivered by functionalized lipid nanoparticles

Arteta, Marianna Yanez; Kjellman, Tomas; Bartesaghi, Stefano; Wallin, Simonetta; Wu, Xiaoqiu; Kvist, Alexander J.; Dabkowska, Aleksandra; Székely, Noémi; Radulescu, Aurel; Bergenholtz, Johan; Lindfors, Lennart

The development of safe and efficacious gene vectors has limited greatly the potential for therapeutic treatments based on messenger RNA (mRNA). Lipid nanoparticles (LNPs) formed by an ionizable cationic lipid (here DLin-MC3-DMA), helper lipids (distearoylphosphatidylcholine, DSPC, and cholesterol), and a poly(ethylene glycol) (PEG) lipid have been identified as very promising…
12 March 2019
Customer publications

Fabrication and characterization of Ba3Zn2Fe24O41 (Zn2Z) hexaferrites films on silicon substrates

Al-Hwaitat, Eman; Al-Hussein, Mahmoud; Mahmood, Sami H.; Bsoul, Ibrahim

We report the fabrication and characterization of Ba3Zn2Fe24O41 (Zn2Z) hexaferrite films on silicon substrates using a simple sol-gel drop casting method. A combination of X-ray diffraction (XRD), scanning electron microscope (SEM), grazing incidence wide angle X-ray scattering (GIWAXS) and vibrating sample magnetometer (VSM) was used to characterize the structural and…
12 March 2019
Customer publications

Microstructures of cellulose coagulated in water and alcohols from 1-ethyl-3-methylimidazolium acetate: contrasting coagulation mechanisms

Hedlund, Artur; Köhnke, Tobias; Hagman, Joel; Olsson, Ulf; Theliander, Hans

Coagulation of cellulose solutions is a process whereby many useful materials with variable microstructures and properties can be produced. This study investigates the complexity of the phase separation that generates the structural heterogeneity of such materials. The ionic liquid, 1-ethyl-3-methylimidazolium acetate (), and a co-solvent, dimethylsulfoxide (DMSO), are used to…
12 March 2019