Solution-Spinning of a Collection of Micro- and Nanocarrier-Functionalized Polysaccharide Fibers
Artikel i vetenskaplig tidskrift, 2022

Continuous polysaccharide fibers and nonwovens—based on cellulose, hydroxypropyl cellulose, chitosan, or alginate—containing biopolymeric microcapsules (MC) or mesoporous silica nanoparticles (MSN) are prepared using a wet-spinning or solution blowing technique. The MCs are homogeneously distributed in the fiber matrices whereas the MSNs form discrete micron-sized aggregates as demonstrated using scanning electron-, fluorescence-, and confocal microscopy. By encapsulating the model compound pyrene, it is shown that 95% of the substance remains in the fiber during the formation process as compared to only 7% for the nonencapsulated substance. The material comprising the MC has a strong impact on the release behavior of the encapsulated pyrene as investigated using methanol extraction. MCs based on poly(l-lactic acid) prove to be practically impermeable with no pyrene released in contrast to MCs based on poly(lactic-co-glycolic acid) which allow for diffusion of pyrene through the MC and fiber as visualized using fluorescence microscopy.

nonwovens

filaments

solution blown

core–shell particles

polysaccharides

Författare

Hanna Ulmefors

RISE Research Institutes of Sweden

Ting Yang Nilsson

RISE Research Institutes of Sweden

Viktor Eriksson

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Lars Evenäs Group

Gustav Eriksson

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Martin Andersson Group

Lars Evenäs

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Lars Evenäs Group

Markus Andersson Trojer

RISE Research Institutes of Sweden

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Lars Evenäs Group

Macromolecular Materials and Engineering

1438-7492 (ISSN) 1439-2054 (eISSN)

Vol. In Press

Ämneskategorier

Polymerkemi

Polymerteknologi

DOI

10.1002/mame.202200110

Mer information

Senast uppdaterat

2022-05-12