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    STUDIA PHYSICA - Issue no. 1 / 2012  
         
  Article:   XPS STUDY OF METHEMOGLOBIN ADSORPTION ONTO GLUTARALDEHYDE FUNCTIONALIZED BIOACTIVE GLASS AT DIFFERENT IONIC STRENGTHS.

Authors:  E. VANEA. 		 
       
         
  Abstract:   In this study, the surface sensitive spectroscopic method X-ray photoelectron spectroscopy (XPS) was applied to obtain information on methemoglobin adsorption onto sol-gel derived 45S5 bioactive glass surface in solutions of different salt concentrations. The adsorption behavior was also followed by Brunauer-Emmitt-Teller (BET) surface area and pore volume evaluation, before and after protein adsorption. It was found that a low salt concentration has a beneficial effect on the methemoglobin adsorption.

Keywords: biomaterials; surface functionalization; protein adsorption; XPS.
 
         
     
         
         
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