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).

At the end of the year 2014 numerous articles about chitosan and chitosan derivatives were published.  All in all 312 reports were released in November and December by leading scientists from China (89 articles), USA (35) India (28) and South Korea (21).

In September and October, 276 chitosan-related articles have been released. The main topics addressed chitosan in evaluation studies, pharmaceutical preparations, nanoparticles and tissue engineering. The highest number of publications was performed by the leading nations China (73 articles), USA (28) and India (22). German scientists published 8 articles, placing them in the top-ten list.

In the summer month July and August 2014, 246 articles about chitosan and chitosan derivatives have been published. These articles were mainly published by scientists from China (59 articles), USA (31) and India (30). The top terms in this month addressed nanoparticles, pharmaceutical preparations and animal studies.