Optical properties of water-soluble CdTe quantum dots passivated by a biopolymer based on poly((2-dimethylaminoethyl) methacrylate) grafted onto κ-carrageenan.
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.
Department of Chemistry, Payame Noor University , PO BOX 19395-3697, Tehran, Iran.
Ghasem
G
Rezanejade Bardajee
Zari
Z
Hooshyar
Habib
H
Rezanezhad
Gerald
G
Guerin
D000900:Anti-Bacterial Agents / Q000138:chemical synthesis / Q000737:chemistry; D000935:Antifungal Agents / Q000138:chemical synthesis / Q000737:chemistry; D019187:Cadmium Compounds / Q000737:chemistry*; D002351:Carrageenan / Q000737:chemistry*; D002478:Cells, Cultured; D020099:Coated Materials, Biocompatible / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry*; D008826:Microbial Sensitivity Tests; D009757:Nylons; D055620:Optical Phenomena; D058105:Polymerization; D011108:Polymers / Q000737:chemistry*; D045663:Quantum Dots / Q000737:chemistry*; D012995:Solubility; D013691:Tellurium / Q000737:chemistry*; D014867:Water / Q000737:chemistry
D000900:Anti-Bacterial Agents; D000935:Antifungal Agents; D019187:Cadmium Compounds; D020099:Coated Materials, Biocompatible; D008689:Methacrylates; D009757:Nylons; D011108:Polymers; C407037:poly(2-(dimethylamino)ethyl methacrylate); D014867:Water; D002351:Carrageenan; D013691:Tellurium