In the summer months July and August, 222 publications about chitosan and chitosan derivatives have been released. Most of these reports examined chitosan-based pharmaceutical preparations and nanoparticles and analysed the effectiveness in animal and human studies. The leading countries in chitosan research are: China (70 articles), India (23) and Taiwan (16).

231 articles about chitosan and chitosan derivatives have been published in May and June 2013. The main topics focused on animal and human studies and on chitosan-based nanoparticles and pharmaceutical preparations. Moreover, the physico-chemical properties and pH sensitivity of various chitosan derivatives were intensively studied. Among the top nations of chitosan research are again: China (76 articles), USA (30) and India (14).

In March and April 262 publications were released about Chitosan, which mainly focused on animal and human studies, nanoparticles and pharmaceutical preparations. The most successful nations in the field of chitosan research have been: China (83 articles), India (31) and USA (22).

At the beginning of year 2013 numerous articles about chitosan and chitosan derivatives were published.  All in all 286 publications were released in January and February by leading scientists from China (86 articles), USA (25) and India (25).  The main research field addresses chitosan in animal and human studies, nanoparticles and pharmaceutical preparations.