BioMed Search has been created by Alex Ksikes, a PhD student in University of Cambridge. The goal of BioMed search is to organize figures, images or schema found in biomedical articles. Over 1 Million images have been indexed and more is on its way. BioMed Seach indexes image captions along with the citations to these images.
A sample search with the keyword insulin returns the following result
It is the well formated scientific literatures that makes the such search possible. Pay attention and try to improve it.