Evaluating the X-ray-Shielding Performance of Graphene-Oxide-Coated Nanocomposite Fabric

Abstract

Exposure to ionizing radiation (IR) during diagnostic medical procedures brings certain risks, especially when experiencing recurrent exposures. The fabrication of nano-based composites, doped with different nanoparticles, have been suggested as effective shielding materials to replace conventional lead-based ones in material sciences and nanotechnology. In this study, commercially available fabrics, used to produce scrubs and gowns for clinical staff, are modified utilizing graphene oxide (GO) nanoparticles using a layer-by-layer (LBL) technique. GO was obtained from graphite through environmentally friendly technology by using a modified-improved Hummers' method without NaNO₃. Lightweight, flexible, air- and water-permeable shielding materials are produced that are wearable in all-day clinical practice. The nanoparticles are kept to a minimum at 1 wt%; however, utilizing the LBL technique they are distributed evenly along the fibers of the fabrics to achieve as much shielding effect as possible. The evaluation of samples is accomplished by simulating real-time routine clinical procedures and the radiographic programs and devices used daily. The GO-coated nanocomposite fabrics demonstrated promising results for X-ray shielding.

Keywords: X-ray shielding; environmentally friendly; graphene oxide; layer by layer; nanocomposite.

Figure 1

Zeta potential graphic of GO [26].

Figure 2

Schematic demonstration of the setup.

Figure 3

XRD patterns of GO.

Figure 4

SEM/EDX image of graphite (a) and GO (b).

Figure 5

SEM micrographs of GO-multilayer-coated fabrics.

Figure 6

The gray scale values of GO multilayer coated fabrics. Black (UT), red (20L), blue (30L) and green (40L) lines indicate the differences.