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Title: | Development of Semiconductor Nanocrystals for Biotechnological Applications | Authors: | Ünlü, Caner | Advisors: | Özçelik, Serdar | Publisher: | Izmir Institute of Technology | Abstract: | Semiconductor nanocrystals are very useful tools in biological applications because of their unique optical properties. In this study, synthesis and characterization of CdTe / CdS and CdSexS1-x nanocrystals were carried out. CdSexS1-x nanocrystals were synthesized by a modified two phase method. Highly luminescent (Quantum yied . %80) , monodisperse and face centered cubic CdSexS1-x nanocrystals were obtained in toluene. The size of nanoparticles varies from 3.5 to 3.7 nm Ligand exchange was performed on CdSexS1-x nanocrystals and luminescent water soluble CdSexS1-x nanocrystals were obtained. CdTe / CdS nanocrystals were synthesized in one step and and one pot by a modified method. Face centered cubic, luminescent (Quantum yield . 30%) and monodisperse CdTe / CdS nanocrystals with different sizes in a size range from 4.7 to 9.3 nm were obtained in water. Toxicity of CdTe / CdS nanocrystals was determined by MTT test. The lethal concentrations were respectively 1.0 and 15 .g/ml for PC3 and MCF7 cells. Confocal microscopy shows that the nanoparticles enter to the cytoplasm of cells. | Description: | Thesis (Master)--İzmir Institute of Technology, Chemistry, İzmir, 2008 Includes bibliographical references (leaves: 71-77). Text in English; Abstract: Turkish and English xii, 77 leaves |
URI: | http://hdl.handle.net/11147/3258 |
Appears in Collections: | Master Degree / Yüksek Lisans Tezleri |
Files in This Item:
File | Description | Size | Format | |
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T000771.pdf | MasterThesis | 1.13 MB | Adobe PDF | View/Open |
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