▎ 摘　　要

The present work discloses the use ofErythrina senegalensisleaf extract for reduction of graphene oxide (GO) via a simple one pot technique by avoiding the use of toxic reducing agents. The effective reduction of GO and consequent capping by oxidized plant polyphenols were demonstrated by different spectroscopic and microscopic studies. Fourier-transform infrared (FTIR) spectroscopy indicated the stabilization of RGO with oxidized polyphenols of plant extract. Transmission electron microscopy (TEM) images confirmed the thin, transparent, silk sheet like structure of RGO. Further, the produced RGO displayed a concentration-dependent toxicity toward cardiac cell lines of Catla catla (SICH). In addition, the present study provided the green fabrication of RGO for the development of new products based on graphene for cardiac tissue engineering applications in nursing care.