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A faint blue tint in the reconstituted GHK-Cu solution is characteristic of the copper(II) complex and directly indicates that the peptide is properly chelated with copper
doi: 10.3390/cancers11081086 116 YanTYanNWangPXiaYHaoHWangGet al
10.3892/mmr.2018.9775 124 ZhangJ.FengS.SuW.BaiS.XiaoL.WangL.et al
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