10.1016/j.ecoenv.2008.09.022 Ecotoxicol
Unlike common drugs, peptides do not leave long-lasting metabolites because they break down into amino acids
Benefits: Ease of use
Moreover, not all methodologies utilized in these studies are properly validated against the gold standard, i.e., the Ussing chamber, and therefore caution is needed in the interpretation of these permeability data
A minimum of 98% is considered research grade, though 99% is strongly preferred for sensitive assays, cell culture experiments, and in vivo pre-clinical studies where compound purity directly affects reproducibility and result accuracy
doi: 10.3389/fimmu.2022.995582 Received 16 July 2022 Accepted 01 November 2022 Published 16 November 2022 Volume 13 - 2022 Edited by Luiz Eduardo Baggio Savio, Federal University of Rio de Janeiro, Brazil Reviewed by Cassio Almeida-da-Silva, University of the Pacific, United States