Microcapsules/microspheres of chitosan
A ‘microcapsule’ is defined as a spherical particle with size varying from 50 nm to 2 mm, containing a core substance. Microspheres are, in a strict sense, spherical empty particles.However, the terms microcapsules and microspheres are often used synonymously. In addition, some related terms are used as well. Forexample, ‘microbeads’ and ‘beads’ are used