Polysulfones with highly localized imidazolium groups for anion exchange membranes
Weiber, E. Annika; Jannasch, Patric
Journal of Membrane Science, 2015, vol 481pp. 164–171DOI:Visit the full articleBack to the overview
Ca2+-stabilized adhesin helps an Antarctic bacterium reach out and bind ice
Vance, Tyler DR; Olijve, Luuk LC; Campbell, Robert L.; Voets, Ilja K.; Davies, Peter L.; Guo, Shuaiqi
Bioscience reports, 2014, vol 34, 4, pp. 357–368DOI:Back to the overview
A tryptophan-substituted cholic acid: Expanding the family of labelled biomolecules
Travaglini, Leana; Gubitosi, Marta; di Gregorio, Maria Chiara; D’Annibale, Andrea; Meijide, Francisco; Giustini, Mauro; Sennato, Simona; Obiols-Rabasa, Marc; Schillén, Karin; Pavel, Nicolae Viorel; others
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2015, DOI:Visit the full articleBack to the overview
Orientation specific deposition of mesoporous particles
Kjellman, Tomas; Bodén, Niklas; Wennerström, Håkan; Edler, Karen J.; Alfredsson, Viveka
We present a protocol for a facile orientation specific deposition of plate-like mesoporous SBA-15 silica particles onto a surface (mesopores oriented normal to surface). A drop of an aqueous dispersion of particles is placed on the surface and water vaporizes under controlled relative humidity. Three requirements are essential for uniform…
Influence of microporosity in SBA-15 on the release properties of anticancer drug dasatinib
Kjellman, T.; Xia, X.; Alfredsson, V.; Garcia-Bennett, A. E.
The release of the hydrophobic cancer drug dasatinib from two mesoporous silica materials as drug delivery vehicles has been studied. One material is a reference 2D-hexagonal SBA-15 with the typical bimodal pore system with ordered primary mesopores and disordered intrawall pores. The other material is a modified version of the…
Direct Observation of Plugs and Intrawall Pores in SBA-15 Using Low Voltage High Resolution Scanning Electron Microscopy and the Influence of Solvent Properties on Plug-Formation
Kjellman, Tomas; Asahina, Shunsuke; Schmitt, Julien; Impéror-Clerc, Marianne; Terasaki, Osamu; Alfredsson, Viveka
Through the use of low voltage high resolution scanning electron microscopy (LV-HRSEM) we have studied the fine details of the intricate pore structure of SBA-15. Intrawall pores and deviations from the ideal and uniform cylindrical pores are clearly observed, and we report for the first time the direct observation of…
Folding Polymers with Pendant Hydrogen Bonding Motifs in Water: The Effect of Polymer Length and Concentration on the Shape and Size of Single-Chain Polymeric Nanoparticles
Stals, Patrick J. M.; Gillissen, Martijn A. J.; Paffen, Tim F. E.; de Greef, Tom F. A.; Lindner, Peter; Meijer, E. W.; Palmans, Anja R. A.; Voets, Ilja K.
A set of random copolymers based on a benzene-1,3,5-tricarboxamide functional methacrylate (BTAMA) and oligoethylene glycol methacrylate (oEGMA) with different degrees of polymerization (DP, from 110 to 450) and a 10 mol % loading of BTAMA were prepared using RAFT polymerizations. The pendant BTA units encode for the formation of helical…
Two processes of α-phase formation in polypropylene at high supercooling
Schawe, Jürgen E. K.; Vermeulen, Paul A.; van Drongelen, Martin
The non-isothermal and isothermal crystallization of different types of commercial polypropylenes (PP) are investigated by fast scanning calorimetry and wide-angle X-ray scattering. Typically, PP shows two different crystallization processes: below 55 °C the mesophase formation and at higher temperatures the α-phase formation. Here we report the first observation of an…
3D titania photonic crystals replicated from gyroid structures in butterfly wing scales: approaching full band gaps at visible wavelengths
Mille, Christian; Tyrode, Eric C.; Corkery, Robert W.
3D titania photonic crystals are replicated from single gyroid structures found in the butterfly Callophrys rubi. Photonic crystals were characterised using SEM imaging, X-ray and Raman scattering and reflection spectroscopy. The overall symmetry and topology of the original single gyroid structures is replicated with high fidelity. Titania replicas display photonic…
Organic Semiconductor Thin Films Deposited by Resonant Infrared Matrix-Assisted Pulsed Laser Evaporation: A Fundamental Study of the Emulsion Target
Liu, Yuankai; Atewologun, Ayomide; Stiff-Roberts, Adrienne D.
ABSTRACT Poly (3-hexylthiophene) (P3HT) thin films were deposited using emulsion-based, resonant infrared matrix-assisted pulsed laser evaporation (RIR-MAPLE) from emulsions containing different solvents and different alcohols, to investigate the impact of emulsion on film morphology. The atomic force microscopy (AFM) and grazing-incidence, wide angle x-ray scattering (GIWAXS) results show that…
