Schaer, Michel Crittin, Mireille Kasmi, Lamia Pierzchala, Katarzyna Calderone, Caroline Digigow, Reinaldo G. Petri-Fink, Alke Forró, László Sienkiewicz, Andrzej 2014-02-25 This work reports on the implementation of electrospinning (ES) as a facile route to encapsulate nano-engineered materials in a polystyrene (PS) matrix. We applied ES to co-encapsulate two kinds of nanoparticles,<i> i.e.</i>, upconversion nanophosphors (UCNPs) and superparamagnetic iron oxide nanoparticles (SPIONs), in polystyrene (PS)-based micro- and nano-fibers (PSFs). This approach made it possible to integrate near-infrared (NIR) light-sensitive 500-nm β-NaYF₄:Yb, Er UCNPs with 10-nm γ-Fe₂O₃ SPIONs in PS fibers. During the ES process, PSFs were additionally loaded with a well-established singlet oxygen (¹∆_g) photosensitizer, rose bengal (RB). The thus obtained PSFs revealed the promising features of prospective multi-functional magnetic photoluminescent photocatalytic nano-constructs. application/pdf https://folia.unifr.ch/global/documents/303479 https://folia.unifr.ch/documents/303479/files/fin_mfm.pdf eng info:eu-repo/semantics/altIdentifier/doi/10.3390/fib2010075 info:eu-repo/semantics/openAccess License undefined Fibers. - 2014, vol. 2, no. 1, p. 75–91 nanofibers nano encapsulation electrospinning superparamagnetic iron oxide nanoparticles upconversion nanoparticles singlet oxygen near infrared light info:eu-repo/classification/udc/53 Multi-functional magnetic photoluminescent photocatalytic polystyrene-based micro- and nano-fibers Obtained by electrospinning http://purl.org/coar/resource_type/c_6501