User:Rebeca Rodriguez/Notebook/Chem 471/2016/02/03

Biomaterials Design Lab

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Objective Synthesis of controlled AuNPs UV-Vis of Red AuNPs/calibration curve with serial dilutions Description The same protocol was followed from Jan. 29th Sodium Citrate used: 0.0044715g Gold used: 0.05031g Stirring at 240 rpm Heated at 155 degrees C, changed to 170 degrees C after one hour 1hr and 20 min in order to reach 90 degrees C, to which the sodium citrate was then added. It was kept on the heat stirring for 5 minutes and 30 seconds. The solution turned a bright red color. Data Figure 1: AuNP UV-Vis Spectra for our Red AuNPs (synthesized on 02/02/2016) Figure 2: Calibration Curve for our Red AuNPs (synthesized on 02/02/2016)

Notes

It was then decided that we would test whether the purple or red citrate gold nanoparticles would be absorbed most into the plant, thus finding our control group of AuNPs.

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