<p class="MsoNormal" dir="RTL"><strong><span dir="LTR">TITLE</span></strong></p> <p class="MsoNormal" dir="RTL"><strong><span dir="LTR">Preparation of chitosan-based nanoparticles for </span></strong><strong><span dir="LTR">enzyme immobilization</span></strong><span lang="FA"></span></p>