A chemical process occurring within a cell or organism that is necessary for maintenance of life. In metabolism, some of the substances are broken down to yield energy for vital processes while other substances are necessary for life are synthesized. Peer review refers to the work done during the screening of submitted manuscripts and funding applications. This process encourages authors to meet the accepted standards of their discipline and reduces the dissemination of irrelevant findings, unwarranted claims, unacceptable interpretations, and personal views. Publications that have not undergone peer review are likely to be regarded with suspicion by academic scholars and professionals. iMedPub LTD is a progressive, and comprehensive medical and healthcare science publisher that aims to provide free and easy access to scientific information to all as the scientifically tried and tested knowledge alone can lead to the advancement of the societies and communities."The top journals are peer-reviewed scholarly journals of green chemistry. These provide high quality, meticulously reviewed, and rapid publication, to cater to the insistent need of the 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.