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. Author manuscript; available in PMC: 2019 Jan 9.
Published in final edited form as: Langmuir. 2017 Dec 18;34(1):154–163. doi: 10.1021/acs.langmuir.7b02354

Figure 6.

Figure 6

Quantifying colloidal stability using ES-DMA-ICP-MS. Initial mixing of cisplatin with AuNP conjugates occurs at 0 h, with the x-axis showing time after mixing or reaction time. Before mixing with PtII, samples are stable and therefore DA=1 was assumed at t=0. (a) Effect of PtII on colloidal stability. (b) Effect of PEGylation on stability in different media. The parameter DA was calculated from mass distribution measurements using DMA-ICP-MS. A relative standard deviation of 7 % is estimated based on the mean standard deviation performed at each size step. [27]