Preparation and characterization of albumin-heparin microspheres

Cremers, H.F.M. and Kwon, G. and Bae, Y.H. and Kim, S.W. and Verrijk, R. and Noteborn, H.P.J.M. and Feijen, J. (1994) Preparation and characterization of albumin-heparin microspheres. Biomaterials, 15 (1). pp. 38-48. ISSN 0142-9612

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Abstract:	Albumin-heparin microspheres were prepared by a two-step process which involved the preparation of a soluble albumin-heparin conjugate, followed by formation of microspheres from this conjugate or by a double cross-linking technique involving both coupling of soluble albumin and heparin and microsphere stabilization in one step. The first technique was superior since it allowed better control over the composition and the homogeneity of the microspheres. Microspheres could be prepared with a diameter of 5¿35¿m. The size could be controlled by adjusting the emulsification conditions. The degree of swelling of the microspheres was sensitive to external stimuli, and increased with increasing pH and decreasing ionic strength of the medium.
Item Type:	Article
Copyright:	© 1994 Elsevier Science
Faculty:	Science and Technology (TNW)
Research Group:	Polymer Chemistry and BioMaterials (PBM)
Link to this item:	http://purl.utwente.nl/publications/9738
Official URL:	http://dx.doi.org/10.1016/0142-9612(94)90195-3
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