Journal of Thermal Analysis and Calorimetry

, Volume 86, Issue 1, pp 85–91 | Cite as

Surface properties of silica gel samples modified by selected proteins

  • D. Sternik
  • P. Staszczuk
  • J. Pękalska
  • G. Grodzicka
  • B. Gawdzik
  • J. Osypiuk-Tomasik
  • P. Witer


The adsorption of a polar (water) and a non-polar (n-octane) liquid on silica gels, modified by adsorption of proteins, has been studied by thermal analysis. Silica gels with physically adsorbed BSA and ovalbumin layers were used. Thermodesorption energies were determined from Q-TG and Q-DTG curves recorded under quasi-equilibrium conditions. Significant differences in liquid desorption were observed from the surfaces due to heterogeneous changes (energetic and geometrical) as a result of modification. These results are compared with those obtained for the samples heated at 160°C for 1 h.


adsorption albumin fractal dimension heterogeneity protein surface thermogravimetry Q-TG 


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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • D. Sternik
    • 1
  • P. Staszczuk
    • 1
  • J. Pękalska
    • 1
  • G. Grodzicka
    • 1
  • B. Gawdzik
    • 2
  • J. Osypiuk-Tomasik
    • 2
  • P. Witer
    • 1
  1. 1.Department of Physicochemistry of Solid Surface, Chemistry FacultyMaria Curie-Skłodowska UniversityLublinPoland
  2. 2.Department of Chemistry and Polymer Technology, Chemistry FacultyMaria Curie-Skłodowska UniversityLublinPoland

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