|
Resolution: standard / high Figure 5.
The preparation process and stabilization mechanism of the sample 4. I: the AuCl4- was reduced by sodium borohydride (NaBH4) and Au NPs modified by CTABr were quickly obtained; II: after standing for more
than 5 months, the modified Au NPs could still exhibit ultrahigh stability due to
the electrostatic repulsions and steric hindrances between different Au NPs.
Wang et al. Nanoscale Research Letters 2011 6:259 doi:10.1186/1556-276X-6-259 |