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Wavelength values (λ) of the plasmon maximum, width of the peak at half the maximum, extinction coefficient (εmax) obtained by UV-Vis spectroscopy and hydrodynamic diameter (DH) by DLS for three different commercial batches of AgNPs.
| Batch | λ (nm) | Width1/2 (nm) | εmax (mM−1·cm−1) | DH a (nm) |
|---|---|---|---|---|
| 3 | 397.6 ± 2.4 | 50.2 ± 0.1 | 15.43 ± 0.02 | 22.3 ± 2.4 |
| 2 | 393.4 ± 2.0 | 42.7 ± 0.2 | 16.83 ± 0.05 | 20.5 ± 3.1 |
| 1 | 393.1 ± 2.2 | 42.8 ± 0.2 | 17.05 ± 0.03 | 20.1 ± 3.0 |
a Confidence interval α = 0.01.
