Gold/Chitosan Nanocomposites with Specific Near Infrared Absorption for Photothermal Therapy Applications
Figure 1
Z-contrast STEM images of the Au NPs synthesized from reaction of HAuCl4 and Na2S2O3 before and after centrifugation process. (a) As-synthesized Au NPs; (b) Au NPs after purification by centrifugation. The purified product has the NIR absorption peak at 820 nm.
