Pazin, Wallance Moreira; Olivier, Danilo da Silva; Vilanova, Neus; Ramos, Ana Paula; Voets, Ilja Karina; Soares, Ademilson Espencer Egea; Ito, Amando Siuiti
Interaction of Artepillin C with model membranes
Green propolis, a mixture of beeswax and resinous compounds processed by Apis mellifera, displays several pharmacological properties. Artepillin C, the major compound in green propolis, consists of two prenylated groups bound to a phenyl group. Several studies have focused on the therapeutic effects of Artepillin C, but there is no…
Semifluorinated alkanes and alkanes: A phase study of the perfluorohexyloctane – Tetradecane system
Runnsjö, Anna; Kocherbitov, Vitaly; Graf, Gesche; Pettigrew, Anthony; Scherer, Dieter; Mortensen, Kell; Engblom, Johan
The binary system perfluorohexyloctane (F6H8)–tetradecane (C14) was investigated in order to increase understanding of interactions of semifluorinated alkanes (SFAs) with hydrophobic molecules. The thermal phase behavior for F6H8 and C14 and their mixtures was determined using DSC. The activity coefficients for both components in the mixtures were calculated and Gibbs…
Macroscopic CNT fibres inducing non-epitaxial nucleation and orientation of semicrystalline polymers
Yue, Hangbo; Monreal-Bernal, Alfonso; Fernández-Blázquez, Juan P.; Llorca, Javier; Vilatela, Juan J.
Scientific reports, 2015, vol 5DOI:Visit the full articleBack to the overview
Double Networks Based on Amphiphilic Cross-Linked Star Block Copolymer First Conetworks and Randomly Cross-Linked Hydrophilic Second Networks
Rikkou-Kalourkoti, Maria; Kitiri, Elina N.; Patrickios, Costas S.; Leontidis, Epameinondas; Constantinou, Marios; Constantinides, Georgios; Zhang, Xiaohan; Papadakis, Christine M.
This study presents the preparation and characterization of double networks (DN) based on a first amphiphilic polymethacrylate conetwork (APCN) and a second polyacrylamide network. The APCN first network comprised interconnected “in–out” star copolymers of 2-(dimethylamino)ethyl methacrylate (DMAEMA, hydrophilic ionizable monomer) and 2-ethylhexyl methacrylate (EHMA, hydrophobic comonomer) or…
Steady-state droplet size in montmorillonite stabilised emulsions
J. Ganley, William; Duijneveldt, Jeroen S. van
Soft Matter, 2016, vol 12, 30, pp. 6481-6489DOI:10.1039/C6SM01377EVisit the full articleBack to the overview
Compatibility and epitaxial crystallization between Poly(ethylene) and Poly(ethylene)-like polyesters
Pepels, Mark P. F.; Kleijnen, Rob G.; Goossens, Johannes G. P.; Spoelstra, Anne B.; Tandler, Renate; Martens, Hans; Soliman, Maria; Duchateau, Rob
This work describes the phase behavior of blends of ‘polyethylene-like’ polypentadecalactone (PPDL) and polyethylene. Blends of high-density polyethylene (HDPE) and PPDL were shown to be immiscible at the onset of crystallization of polyethylene, resulting in phase-separated morphologies. However, epitaxial crystallization of PPDL onto the HDPE crystals was observed by transmission…
Block Copolymer Nanocomposites with High Refractive Index Contrast for One-Step Photonics
Song, Dong-Po; Li, Cheng; Li, Wenhao; Watkins, James J.
ACS nano, 2016, vol 10, 1, pp. 1216–1223DOI:Visit the full articleBack to the overview
Extended Law of Corresponding States Applied to Solvent Isotope Effect on a Globular Protein
Bucciarelli, Saskia; Mahmoudi, Najet; Casal-Dujat, Lucía; Jéhannin, Marie; Jud, Corinne; Stradner, Anna
Investigating proteins with techniques such as NMR or neutron scattering frequently requires the partial or complete substitution of D₂O for H₂O as a solvent, often tacitly assuming that such a solvent substitution does not significantly alter the properties of the protein. Here, we report a systematic investigation of the solvent…
On the dissolution state of cellulose in cold alkali solutions
Hagman, Joel; Gentile, Luigi; Jessen, Christian Moestrup; Behrens, Manja; Bergqvist, Karl-Erik; Olsson, Ulf
We have characterized the dissolved state of microcrystalline cellulose (MCC) in cold alkali solutions using a combination of small angle X-ray (SAXS) and static light scattering (SLS), 11^1H NMR, NMR self-diffusion, and rheology experiments. NMR and SAXS data demonstrate that the cellulose is fully molecularly dissolved. SLS, however, shows the…
Deformation mechanisms in ionic liquid spun cellulose fibers
Wanasekara, Nandula D.; Michud, Anne; Zhu, Chenchen; Rahatekar, Sameer; Sixta, Herbert; Eichhorn, Stephen J.
The molecular deformation and crystal orientation of a range of next generation regenerated cellulose fibers, produced from an ionic liquid solvent spinning system, are correlated with macroscopic fiber properties. Fibers are drawn at the spinning stage to increase both molecular and crystal orientation in order to achieve a high tensile…