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Spring SAVY 2018, Day 4- Biophotonics (5th/6th)

Posted by on Monday, February 19, 2018 in Grade 5, Grade 6, SAVY.

This week, we got to put our optical toolboxes to use. After reviewing what we covered for the first half of the course, students set out to design their own pulse oximeter. Of the methods we covered, students accurately identified Raman scattering and absorption as two possible methods for measuring blood oxygenation. Students analyzed recorded data to identify trends in Raman spectra and light transmission that could distinguish oxygenated and deoxygenated blood. After deciding that absorption was the better method, we discussed how pulse oximeters are actually made and used in the clinic. For our next challenge, we made the rainy trek over to the Vanderbilt Biophotonics Center. Here, students got to use a Raman system and a spectrometer to distinguish “healthy” and “cancerous” oral tissue (not actual samples) using Raman scattering and fluorescence. Next week, we will use our toolboxes to explore some forms of optical therapeutics like ablation, laser tattoo removal, and LASIK. Can’t wait to see you guys next week and remember to do the Raman Shake!