Abstract
Surface modification is the modification of the surface (either of carrier, drug or targeting
moiety) by which solubility, opsonization, adhesion, longer circulation, and bioconjugation of an object
can be achieved.
Techniques which modify surface properties of carriers, drugs, ligands, excipients, coating materials,
etc. by introducing random, non-specific groups or selected, specific groups can be used to alter the
surface properties of the object. Through this review, a small attempt is made to understand the surface
modification techniques. In this review, several methods (surface modification by solid dispersion
technique, surfactants, polaxamer and polaxamine coating, PEG (polyethylene glycol), Vitamin
E, Dextran derivatives, Chitosan coating, chemicals, gas and through layer by layer techniques) are
discussed for surface modification. A concise review was done to explore the availability of techniques
and agents available to introduce a specific group into the object.
Keywords:
Ethylene Oxide (EO), Mononuclear Phagocytic System (MPS), nanoparticle, Poly(Ethylene Oxide) (PEO), Polyethylene
Glycol (PEG), Propylene Oxide (PO), Reticuloendothelial System (RES), surface.
Graphical Abstract
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