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. Author manuscript; available in PMC: 2017 Aug 15.
Published in final edited form as: Analyst. 2016 Aug 15;141(17):5159–5169. doi: 10.1039/c6an00650g

Figure 1.

Figure 1

A) Temporal variation of the DLS determined hydrodynamic diameter of AuNPs dispersed in water and 50:50 water:ethanol in the presence and absence of 4-MBA; Inset photos are of AuNPs in water and 50:50 water:ethanol after two days; B) Temporal variation in the extinction of the primary LSPR band for AuNPs dispersed in water and 50:50 water:ethanol in the presence and absence of 4-MBA; C) Extinction spectra of AuNPs in water:ethanol as a function of time, and D) Extinction spectra of AuNPs in water:ethanol:4-MBA as a function of time.