| Physical Biochemistry is the study of biological system with the concepts of physics and physical chemistry for the study of biological systems. Physical Biochemistry deals with the structure of biological macromolecules at various levels and how their chemical structure impacts physical properties of a substance and the biological process. Physical biochemistry uses different techniques to analyse the rate of a biochemical reaction, molecules interaction, calculation of structures and functional properties of the biological system. The open access journals are peer reviewed scholarly journals of Physical Biochemistry. The top open access journals are freely available on the public internet domain, allowing any end users to read, download, copy, distribute, prink, search or link to the full texts of the articles. 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.