Gold Nanotechnology for Medical Diagnostics Department of Chemistry - PowerPoint PPT Presentation

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Gold Nanotechnology for Medical Diagnostics Department of Chemistry University of Liverpool Pregnancy tests Human Chorionic Gonadotropin (hCG) (hCG) (hCG) What are gold nanoparticles? How can they be made? Why can we not use a much cheaper

Gold Nanotechnology for Medical Diagnostics Department of Chemistry University of Liverpool
Pregnancy tests Human Chorionic Gonadotropin (hCG)
(hCG)
(hCG)
What are gold nanoparticles? How can they be made? Why can we not use a much cheaper metal instead? What else can be done with these particles?
What is a nanometre? A 6’ man is 1.82 metres tall or 2 billion nanometres 0.2nm
How are gold nanoparticles made? Aqueous Solution HAuCl 4 Aqueous Solution Trisodium Citrate Turkevich, J.; Stevenson, P. L. ; Hillier, J. Discuss. Faraday Soc. 1951 , 11, 55.
Why is gold used?
Optical Properties
Plasmon Resonance
What else can gold nanoparticles do? Artificial nose for lung cancer diagnostics
Hossam Haick et al. Nature Nanotechnology 4, 669 - 673 (2009)
Can they also be used to treat cancer? Endocytosis
Photodynamic therapy Intact cancer cells (left) and completely obliterated ones (right) after exposure to a laser beam that interacts with gold nanoparticles inside the cell.
Thank you for your attention

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