|Stem cells are unspecialized cells have the capability to develop into many different cells during early life and growth. These are undifferentiated cells involve in internal repair system and able to differentiate into specialized cell types such as muscle cell red, blood cell, or a brain cell.The top journals are peer reviewed scholarly journals of green chemistry. These provide high quality, meticulously reviewed and rapid publication, to cater the insistent need of scientific community. These journals are indexed with all their citations noted. The top open access journals are indexed in SCOPUS, COPERNICUS, CAS, EBSCO and ISI.