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- W3048245994 abstract "Abstract Semiconducting nanoparticles (NPs) find applications in many fields, with a recent focus on medicine and biology. Functionalization of the surface of NPs is necessary, and one of the most commonly employed techniques is ligand exchange (LE). In this paper, the study of pH influence on LE reaction for different types of cadmium-based NPs (quantum dots, nanorods, and nanoplates) is presented. Hydrophobic NPs were transferred to the non-organic medium by functionalization with d -penicillamine (DPA). The LE procedure was conducted at four different pH levels (4, 7, 9, and 11), and obtained hydrophilic NPs were dispersed in phosphate buffer. Results show that the most effective procedure resulted from a reaction carried at pH = 4; however, NPs with higher photoluminescence intensity were obtained when pH = 11 was used. Comparable emission was achieved from samples at pH = 4 and pH = 9. The least effective transfer, resulting in unstable NPs, occurred when the procedure was conducted at pH = 7." @default.
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- W3048245994 date "2020-08-01" @default.
- W3048245994 modified "2023-10-03" @default.
- W3048245994 title "Surface modification of cadmium-based nanoparticles with d-penicillamine—study of pH influence on ligand exchange reaction" @default.
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- W3048245994 doi "https://doi.org/10.1007/s11051-020-04967-8" @default.
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