Figure 1.

UV–vis spectroscopy. UV–vis spectra of PEG-coated AgNPs obtained by either rapid (curve A) or dropwise (curve B) addition of AgNO3 to an aqueous PEG solution. The single peak in both spectra indicates the successful formation of spherical nanoparticles.

Stiufiuc et al. Nanoscale Research Letters 2013 8:47   doi:10.1186/1556-276X-8-47
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