Resumen:
style type="text/css">p { margin-bottom: 0.25cm; direction: ltr; color: rgb(0, 0, 10); line-height: 120%; text-align: left; }p.western { font-family: "Liberation Serif",serif; font-size: 12pt; }p.cjk { font-family: "Droid Sans Fallback"; font-size: 12pt; }p.ctl { font-family: "FreeSans"; font-size: 12pt; }a:link { color: rgb(0, 0, 255); }During thelast years we have seen an increasing number of reports describingnew properties and potential applications of cationic polymers andderived nanostructures. This review gives a summary of theirapplications in drug delivery, the preparation methods for nano andmicrostructures and will attempt to give a glimpse on how theirstructure, chemical composition and properties may be affected ormodulated as to make them suitable for an intended application asdrug delive