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Figure 4 | Nanoscale Research Letters

Figure 4

From: BRCAA1 antibody- and Her2 antibody-conjugated amphiphilic polymer engineered CdSe/ZnS quantum dots for targeted imaging of gastric cancer

Figure 4

Stability of synthesized PQDs in various pH values and different ionic strengths. (a) Effect of pH on the photoluminescence of 623-nm-emitting PQDs. PQD colloids were dispersed in varied buffers, pH 2 ~ 13, PQDs/buffer = 1:1 (v/v). (b) Influence of increasing ionic strength on the photoluminescence of PQDs. The final sodium chloride concentrations varied from 0 to 300 mM (pH = 7.4).

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