1. Quantum dots and their interaction with DNA Maja Stanisavljević 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 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 