GHK Cu as a multifunctional copper peptide: synthesis routes, process engineering and emerging applications Systems Microbiology and Biomanufacturing Springer Nature Link Copper Peptide (GHK Cu) 2% Recovery Serum Electrophoretic deposition of GHK Cu loaded MSN chitosan coatings with pH responsive release of copper and its bioactivity ScienceDirect GHK CU (50mg) Nordsci GHK Cu: Regenerative Signaling and Molecular Reprogramming Research English Version Peridico Digital Centroamericano y del Caribe Xray and Solution Structures of CuIIGHK and CuIIDAHK Complexes: Influence on Their Redox Properties Hureau 2011 Chemistry A European Journal Wiley Online Library