In April 139 publications have been released about chitosan, which mainly focused on topics like evaluation studies, pharmaceutical preparations and nanoparticles. The leading nations in the field of chitosan research are China (48 articles), India (18) and USA (13).

The jear 2013 was an outstanding year for chitosan research, as a new record of publications has been achieved. Throughout the year, 1845 articles about chitosan and chitosan derivatives have been published, which mainly focused on animal and human studies, nanoparticles, pharmaceutical preparations and evaluation studies. The leading scientists in the field of chitosan were Rui L. Reis (University of Minho, Portugal), Shantikumar V. Nair (Amrita Vishwa Vidyapeetham University, India) and Andreas Bernkop-Schnürch (University of Innsbruck, Austria).

In September and October 2013, 290 publications about chitosan and its diverse derivatives have been released. They present novel formulations of chitosan-based nanoparticles and pharmaceutical preparations and performed animal and human studies. The leading nations in chitosan research are China (75 articles), India (37) and USA (27).

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).