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Quantum dots and their interaction with DNA

Quantum dots and their interaction with DNA. Maja Stanisavljević Mendel University Department of chemistry and biochemistry. Quantum dots – history of synthesis 1980 – Ekimov, Efros – first description of quantum dots 1993 Murray, Norris, Bawendi

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Quantum dots and their interaction with DNA

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  1. Quantum dots and their interaction with DNA MajaStanisavljević Mendel University Department of chemistry and biochemistry

  2. Quantum dots – history of synthesis • 1980 – Ekimov, Efros – first description • of quantum dots • 1993 Murray, Norris, Bawendi • CdE(E=S,SeTe) and other improvments • like ZnS shell • Semiconductor nanocrystals synthetised • from II and VI or III and V elements of PSE. • today-enviromental-friendly synthesis ZnS CdTe • Characteristics • small size 1-10nm • absorbtion of light in wide range • emmision range very narrow • photostabillity and resistance to • chemical degradation • poisonous core and hydrophobic • surface modification • bioconjugation

  3. DNA • 1869 – isolated by Swiss scientist • Friedrich Miescher • 1953 – described DNA structure • Watson and Crick • 1962 – they recieved Nobel prize • for solving nature’s biggest secret

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