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Magnetic Tweezers - SINGLE MOLECULE MANIPULATION WITH MAGNETIC FIELDS

Contact: Prof. Dr. Dario Anselmetti

     
    Research Topic: Magnetic microbeads can be manipulated and steered by external magnetic fields and allow stretching and overwinding experiments with single (DNA) molecules at a sensitivity level downto 0,001 pN. With our magnetic tweezers (MT) apparatus (PicoTwist, Lyon - France) we investigate and quantify the binding of proteins, fluorescent dyes and chemotherapeutic agents to DNA.
     
   
    Images: MT measurement scheme (left), MT apparatus (middle), and time evolution plot of molecular-length shortening during winding and packaging of double-stranded DNA in the presence of histone proteins (right).
     

 

  References: ... see section Publications

Last updated: 06.02.2017