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. Author manuscript; available in PMC: 2013 Nov 1.
Published in final edited form as: Wiley Interdiscip Rev Nanomed Nanobiotechnol. 2012 Aug 9;4(6):605–619. doi: 10.1002/wnan.1186

Figure 2.

Figure 2

Quantum dot solubilization approaches. The as-synthesized QDs can be rendered soluble in water via ligand exchange (Top), wherein native hydrophobic surfactants are replaced with bifunctional hydrophobic capping ligands; via encapsulation in an insert silica shell (Middle); or via amphiphilic polymer encapsulation (Bottom), wherein native surfactants are retained and integrated into the polymer shell.