Table 1 Wavenumbers of the main bands in the FTIR spectrum of biotic and abiotic SeNPs.

3280.4

N–H₂, aminoacidic group

⁴⁰

2927.3

C–H, C–H₂ stretch, Alkanes, aliphatic groups, fatty acid aliphatic chains

⁴¹

1625.5

N–H stretch, Secondary amine, amide I

⁴²

1529

C–N stretch, amide II band, alkanes

⁴⁰

1450

–CH₂/–CH₃ (in proteins, lipids, polyesters, etc.)

^40,43

1390.3

Carboxyl (–COO–) stretching vibration

^41,44

1233.2

C–N stretch, amide III band, O–P–O

⁴⁰