title: Electrospun core-shell nanofibers from homogeneous solution of poly(vinyl alcohol)/bovine serum albumin.
abstract: We report on the preparation and characterization of core-shell structure of bovine serum albumin (BSA) blended poly(vinyl alcohol) (PVA) composite nanofibers by using electrospinning process. The core-shell structure nanofibers have been electrospun from the homogeneous solution of BSA (as shell) and PVA (as core). The morphology, chemical compositions, structure and thermal properties of the resultant products were characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectrometer (EDX), high-resolution transmission electron microscopy (HR-TEM), Fourier transform infrared (FT-IR) spectroscopy, differential scanning calorimetry, thermogravimetric analysis (TGA) and X-ray photoelectron spectroscopy (XPS) techniques. The blending ratio of PVA and BSA, molecular weight of BSA and the applied voltage of electrospinning process were observed to be the key influence factors on the formation of core-shell nanofibers structure. Based on the experimental findings, we proposed a possible physical mechanism for the formation of core-shell nanofibers structure of PVA blended BSA composite.
authors.affiliation: Department of Organic Materials and Fiber Engineering, Chonbuk National University, Jeonju, South Korea.
authors.forename: Jeong Jin
authors.initials: JJ
authors.lastname: Won
authors.forename: R
authors.initials: R
authors.lastname: Nirmala
authors.forename: R
authors.initials: R
authors.lastname: Navamathavan
authors.forename: Hak Yong
authors.initials: HY
authors.lastname: Kim
mesh_terms: D000818:Animals; D002417:Cattle; D008956:Models, Chemical; D057139:Nanofibers / Q000737:chemistry* / Q000648:ultrastructure; D011142:Polyvinyl Alcohol / Q000737:chemistry*; D012710:Serum Albumin, Bovine / Q000737:chemistry*; D012996:Solutions; D013696:Temperature
chemical_list: D012996:Solutions; D012710:Serum Albumin, Bovine; D011142:Polyvinyl Alcohol