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Binding constants KA for rGO-modified nanohole arrays with D/P ratios 0.58, 0.43 and 0.35 compared to a continuous rGO-modified gold film. Data were fitted with the Langmuir equation (Equation 1). Fitting parameters are shown in Table S3 (Supporting Information File 1).
| continuous gold film | D/P of the nanohole array | |||
| 0.35 | 0.43 | 0.58 | ||
| KA / 106·M−1 | 6 ± 1 | 5 ± 1 | 7 ± 0.9 | 5 ± 1 |
