Novel nanofibers mats were fabricated by electrospinning of polyvinyl alcohol/hyaluronan (PVA/HA) solutions in the presence of silver nanoparticles (AgNPs). The AgNPs were synthesized by in-situ chemical reduction of silver ions (Ag+) using HA as a reducing and stabilizing agent. Narrow size distribution and spherical shape of AgNPs were achieved by optimizing the initial silver nitrate concentration (0.01 to 1 M) and reaction time (10-60 min). HA-AgNPs nanocomposite and PVA/HA-AgNPs nanofibrous mats were fabricated by electrospinning technique from aqueous solution containing a different mass ratio of PVA and HA-AgNPs and characterized by UV/Vis spectroscopy, SEM, TEM, DLS, XRD, TGA, and ATR-FTIR. Mechanical and rheological properties were also investigated and discussed. The novel nanofibrous mats show great potential in skin regeneration and drug carrier applications.

CEITEC Central European Institute of Technology Brno University of Technology Purkynova 123 Brno 612 00 Brno Czechia

Department of Physical Electronics Masaryk University Brno Czechia

Institute of Materials Chemistry Faculty of Chemistry Brno University of Technology Purkynova 118 Brno 612 00 Czechia

Pretreatment and Finishing of Cellulosic Fibers Textile Research Division National Research Centre Dokki Cairo Egypt

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$a Abdel-Mohsen, A M $u CEITEC-Central European Institute of Technology, Brno University of Technology, Purkynova 123, Brno, 612 00, Brno, Czechia; Pretreatment and Finishing of Cellulosic Fibers, Textile Research Division, National Research Centre, Dokki, Cairo, Egypt. Electronic address: abdel-mohsen@ceitec.vutbr.cz.

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$a Electrospinning of hyaluronan/polyvinyl alcohol in presence of in-situ silver nanoparticles: Preparation and characterization / $c AM. Abdel-Mohsen, D. Pavliňák, M. Čileková, P. Lepcio, RM. Abdel-Rahman, J. Jančář,

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$a Novel nanofibers mats were fabricated by electrospinning of polyvinyl alcohol/hyaluronan (PVA/HA) solutions in the presence of silver nanoparticles (AgNPs). The AgNPs were synthesized by in-situ chemical reduction of silver ions (Ag+) using HA as a reducing and stabilizing agent. Narrow size distribution and spherical shape of AgNPs were achieved by optimizing the initial silver nitrate concentration (0.01 to 1 M) and reaction time (10-60 min). HA-AgNPs nanocomposite and PVA/HA-AgNPs nanofibrous mats were fabricated by electrospinning technique from aqueous solution containing a different mass ratio of PVA and HA-AgNPs and characterized by UV/Vis spectroscopy, SEM, TEM, DLS, XRD, TGA, and ATR-FTIR. Mechanical and rheological properties were also investigated and discussed. The novel nanofibrous mats show great potential in skin regeneration and drug carrier applications.

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