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  • Title: Optical properties of water-soluble CdTe quantum dots passivated by a biopolymer based on poly((2-dimethylaminoethyl) methacrylate) grafted onto κ-carrageenan.
    Author: Rezanejade Bardajee G, Hooshyar Z, Rezanezhad H, Guerin G.
    Journal: ACS Appl Mater Interfaces; 2012 Jul 25; 4(7):3517-25. PubMed ID: 22734610.
    Abstract:
    Poly ((2-dimethylaminoethyl) methacrylate) grafted onto κ-carrageenan (κC-g-PDMA) as a biopolymer was synthesized and applied for surface modification of water-soluble CdTe quantum dots (QDs). The effects of DMA concentration, molar ratio of κC-g-PDMA/CdTe, reaction temperature and time on optical properties of CdTe QDs were investigated via fluorescent (FL) and UV- visible spectra. The results showed that the κC-g-PDMA significantly affects the optical properties of CdTe QDs. The obtained samples were characterized by Fourier transform infrared spectrum (FT-IR), thermogravimetric (TG) analysis, and transmission electron microscopy (TEM). The antibacterial activity, antifungal assays, and cytotoxicity of modified QDs were examined, and a good biocompatibility was observed.
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