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. Author manuscript; available in PMC: 2019 Oct 1.
Published in final edited form as: Invest Radiol. 2018 Oct;53(10):623–628. doi: 10.1097/RLI.0000000000000476

Figure 1.

Figure 1

A. Electron microscope image showing AuNPs of approximately 20nm in size. B. PEG-coated AuNPs measured 45nm in size with nanoparticle tracking analysis. C. UV-Vis spectroscopy showing that peak absorbance of both bare and PEG-coated AuNPs at 525nm. D. A schematic of the experimental approach for staining. An anti-rabbit secondary antibody was used to probe collagen-I-AuNPs collagen in plate or kidney tissue, while mouse collagen I and anti-mouse secondary antibody served as positive controls in kidney tissue. E. Co-I-AuNPs reached signal similar to the same concentration of collagen-I antibody on a collagen coated plate. *p<0.05 vs. Blank