Fig. 2
From: Reduced graphene oxide-based absorbance biosensors for detecting Escherichia coli DNA
The characteristics of the prepared materials are detailed as follows: (a) The SEM image, obtained using the HITACHI-S4800, confirms the nanosheet morphology, exhibiting enhanced contrast. (b) The XRD pattern was generated using the Rigaku MiniFlex600. Furthermore, (c) the FTIR spectrum was acquired using the Jasco 4600 spectrometer (Jasco, Japan).
