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Université de Fribourg

Polyaspartamide functionalized catechol-based hydrogels embedded with silver nanoparticles for antimicrobial properties

Tan, Milène ; Choi, Youngjin ; Kim, Jaeyun ; Kim, Ji-Heung ; Fromm, Katharina M.

In: Polymers, 2018, vol. 10, no. 11, p. 1188

In this study, polyaspartamide-based hydrogels were synthesized by boron-catechol coordination followed by incorporation of AgNPs into the materials. Free catechol moieties were exploited to produce AgNPs. TEM analyses displayed AgNPs of less than 20 nm in diameter and with minimum aggregation, attesting the role of hydrogels to act as an efficient template for the production of dispersed...

Consortium of Swiss Academic Libraries

Novel injectable urethral bulking agents for the treatment of urinary incontinence

Jordan, O. ; Doelker, E. ; Defabiani, N. ; Caviezel, A. ; Iselin, C.

In: Journal of Materials Science: Materials in Medicine, 2004, vol. 15, no. 4, p. 519-522

Consortium of Swiss Academic Libraries

Stem cell plasticity, osteogenic differentiation and the third dimension

Rottmar, Markus ; Håkanson, Maria ; Smith, Michael ; Maniura-Weber, Katharina

In: Journal of Materials Science: Materials in Medicine, 2010, vol. 21, no. 3, p. 999-1004

Université de Fribourg

Structural behavior of cylindrical polystyrene-block-poly(ethylene-butylene)-block-polystyrene (SEBS) triblock copolymer containing MWCNTs: on the influence of nanoparticle surface modification

Hasanabadi, Noushin ; Nazockdast, Hossein ; Gajewska, Bernadetta ; Balog, Sandor ; Gunkel, Ilja ; Bruns, Nico ; Lattuada, Marco

In: Macromolecular Chemistry and Physics, 2017/218/22/n/a-n/a

In this work, the influence of carbon nanotubes (CNTs) on the self-assembly of nanocomposite materials made of cylinder-forming polystyrene-block-poly(ethylene- butylene)-block-polystyrene (SEBS) is studied. CNTs are modified with polystyrene (PS) brushes by surface-initiated atom transfer radical polymerization to facilitate both their dispersion and the orientation of neighboring PS domains...

Université de Fribourg

Facile synthesis of a high molecular weight amphiphilic aramid–ROMP block copolymer

Badoux, Michael ; Drechsler, Susanne ; Pal, Subhajit ; Kilbinger, Andreas F. M.

In: Macromolecules, 2017, vol. 50, no. 23, p. 9307–9314

Herein we report the facile synthesis of an amphiphilic rod–coil block copolymer obtained by the coupling of an amine-terminated poly(dimethylpropylamine norbornene imide) (PDMAPNI) and a pentafluorophenol ester-terminated poly(dimethoxybenzyl p-aminobenzoate) (PAram). Postpolymerization amide N- deprotection of the block copolymer yielded a strongly aggregating water-soluble rod– coil...

Université de Fribourg

Rheological characterization of nanostructured material based on Polystyrene-b-poly(ethylene-butylene)-b-polystyrene (SEBS) block copolymer: Effect of block copolymer composition and nanoparticle geometry

Hasanabadi, Noushin ; Nazockdast, Hossein ; Balog, Sandor ; Lattuada, Marco

In: Composites Science and Technology, 2017, vol. 149, no. Supplement C, p. 192–206

Block copolymer (BCP) nanocomposite systems are of broad interest; however, reports on the role of nanoparticles on microphase separation behavior are rare. The goal of present study is to investigate the preparation of composite nanostructured materials containing Multi-Walled Carbon Nanotubes (MWCNTs) or graphene nanoplates. BCP nanocomposites based on the linear triblock copolymer, ...