Hybrid Graphene Metallic Nanoparticles for Biodetection

Sensitive and accurate techniques for detection in water, environment and issues related to health, have been a great challenge among scientists. To date, many analytical tools based on different physical, chemical, and biological phenomena have been developed for detection of biomolecules, biomedical imaging, and biosensing, including fluorescence spectroscopy, surface-enhanced Raman scattering (SERS), electrochemistry, and techniques that are based on a specific biological recognition. However, due the demands of the new era and the advances in modern biomedicine, materials that combine relatively low detection limits, easiness of application, as well as low cost, are of great challenge. Herein, the progress towards graphene/metallic nanoparticle hybrids is discussed, emphasizing on the advances of different synthetic methods, the decoration with well-dispersed metallic particles (Au, Ag, Pt, Pd, Cu, and QDs) on graphene, as well as different bioapplications.