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

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

Feb 13, 2023 7 likes •219 views

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

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Gold Nanotechnology for Medical Diagnostics

Department of Chemistry University of Liverpool

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Human Chorionic Gonadotropin (hCG)

Pregnancy tests

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(hCG)

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(hCG)

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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?

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A 6’ man is 1.82 metres tall

  • r 2 billion nanometres

0.2nm

What is a nanometre?

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Aqueous Solution HAuCl4

How are gold nanoparticles made?

Aqueous Solution Trisodium Citrate

Turkevich, J.; Stevenson, P. L. ; Hillier, J. Discuss. Faraday Soc. 1951, 11, 55.

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Why is gold used?

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Optical Properties

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Plasmon Resonance

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What else can gold nanoparticles do?

Artificial nose for lung cancer diagnostics

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Hossam Haick et al. Nature Nanotechnology 4, 669 - 673 (2009)

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Can they also be used to treat cancer? Endocytosis

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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.

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Thank you for your attention