Chapter 13: Medical Applications of Nanoscience

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Presentation transcript:

Chapter 13: Medical Applications of Nanoscience

Background Nanomedicine is the monitoring, repair, construction, and control of human biological systems at the molecular level using engineered nanodevices and nanostructures. Microscopic machines were first hypothesized by Richard Feynman in 1959. K. Eric Drexler described many applications of these machines in Engines of Creation. Currently, several university and industrial research groups are developing medical applications for nanotechnology.

Drug delivery systems: Lipid-based nanoparticles Polymer-based nanoparticles https://www.youtube.com/watch?v=RBjWwlnq3cA

Radiowave Cancer Treatment? https://www.youtube.com/watch?v=svxBvRSSPbw

Tissue Engineering Nano/micro particles, including living animal cells, bacteria, and colloidal gold (100 nm), can be optically guided and deposited in arbitrarily defined three-dimensional arrays, a process called “laser-guided direct-writing.” Nanofibers (video):

DNA Chips https://www.youtube.com/watch?v=UgL1Pq2sk3M Yeast cells were grown under various conditions; the amount of red or yellow light represents the level of RNA produced from the DNA in that gene, under those conditions. https://www.youtube.com/watch?v=UgL1Pq2sk3M

Respirocytes: A Mechanical Artifical Red Blood Cell https://www.youtube.com/watch?v=WzGKlVZtQs0 Bloodborne spherical 1-micron diamondoid 1000-atm pressure vessel Active pumping powered by endogenous serum glucose Able to deliver 236 times more oxygen to the tissues per unit volume than natural red cells and to manage carbonic acidity http://www.foresight.org/Nanomedicine/Respirocytes.html

Future Posiblities: Oxygen Selective Pump

Fixing Damaged Biosystems https://www.youtube.com/watch?v=Q8tAj8A4pc0