Adsorption of bovine serum albumin onto surface-modified polyhydroxyethyl methacrylate beads

Pulat M., Memis E., Gumusderelioglu M.

JOURNAL OF BIOMATERIALS APPLICATIONS, cilt.17, sa.3, ss.237-248, 2003 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 17 Sayı: 3
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1177/0885328203017003481
  • Dergi Adı: JOURNAL OF BIOMATERIALS APPLICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.237-248
  • Gazi Üniversitesi Adresli: Evet

Özet

The adsorption of bovine serum albumin (BSA) onto poly(2-hydroxyethyl methacrylate) (PHEMA) beads modified by using the pair of hexamethylene diisocyonate-suberic acidbis-N-hydroxy succinimide has been studied as a function of protein concentration and adsorption time. The adsorption studies were carried out in phosphate buffer solution (PBS) at pH = 7.4. The isotherm data have been analysed using the Langmuir model and the adsorption parameters Q(o) and b were calculated. It is determined that the adsorbed amount of BSA increases by the increase of the adsorption time and BSA concentration until a certain value. PHEMA beads were characterized by using FTIR spectra and SEM analysis. The adsorption of BSA onto PHEMA beads were clearly observed from SEM micrographs. The swelling tests of the beads were performed at 37degreesC in PBS.