Fig. 2

Physicochemical characterization of CurtoCK-AuNPs. A Transmission electron microscopy (TEM) image for determination of morphological characteristics. B Electron mapping of CurtoCK-AuNPs. C Selected area electron diffraction (SAED) image obtained by TEM analysis for determination of crystalline structure. D Energy-dispersive X-ray (EDX) spectrum for determining elemental distribution. E Scanning electron microscopy (SEM) image for determination of morphological characteristics of crystalline structure