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Amount of spectra with suppressed Amide I bands in TERS and SERS studies of native insulin and insulin fibrils.
| Method | Metal of nano- particles |
Excitation wavelength, nm |
Native Insulin, average, % |
Insulin fibrils, average, % |
|---|---|---|---|---|
| TERS | silver | 532 | 53±4 | 58±26 |
| SERS | silver | 532 | - | 63±9 |
| SERS | gold | 785 | 40±3.5 | 35±4.5 |
