Bibliometric analysis of nanotechnology applied in oncology from 2002 to 2011.

Innovation in the last decade has endowed nanotechnology with an assortment of tools for drug delivery system, imaging, and sensing in cancer research. These rapidly emerging tools are indicative of a burgeoning field ready to expand into medical applications. The aim of this study is to analyze the applications of nanotechnology in oncology with bibliometric methods and evaluate development in this field. Literature search was performed using PubMed search engines with MeSH terms (all)--nanotechnology, nanomedicine, nanoparticle, nanocapsules, micellar systems, and oncology or cancer or neoplasms. Within 2,543 articles from 2002 to 2011 in over 50 medical magazines from over 30 countries, we did a series analysis on these articles' countries, keywords, and authors. Our results show that articles in nanotechnology in oncology are increasing year by year, especially in recent years. Quantity and quality of the articles are becoming more and influential. In the global research, the USA is leading in this field, accounting for half above of the whole articles, followed by countries like Japan, Germany, and France and also some emerging nations like China, in the second place, and India. Subjects like nanoparticles, tumor marker, and drug delivery are the common research focus. So, with more and more scientists' interests and attention drawn to this field, it is likely to make major breakthroughs in the coming years.