Au nanoparticle/graphene oxide hybrids as stabilizers for Pickering emulsions and Au nanoparticle/graphene oxide@polystyrene microspheres

Pickering Interfacial Catalysis for Biphasic Systems: From Emulsion Design to Green Reactions

“…Recently, two additional examples of PIC systems, based on gold and silver nanoparticles, respectively, supported over graphene oxide, have been published. [76] Both systems were very active in the reduction of 4-nitrophenol with NaBH 4 by stabilizing o/w Pickering emulsions, even if the former showed a decrease in activity after recycling. Multiple w/o/w emulsions were generated at low graphene oxide concentration, low pH, high o/w ratio, and high salt concentration, paving the way to possible cascade reactions.…”

Magnetically controllable Pickering emulsion prepared by a reduced graphene oxide-iron oxide composite

“…Up to date, there have been several examples of Pickering emulsions prepared by carbonaceous materials, including carbon nanotubes (CNTs) [13,16,17], graphene oxide (GO) [18][19][20][21][22][23][24], and GO-derived materials [15,25]. Pickering emulsions stabilized by GO have drawn significant attention owing to the unique 2-D structure and amphiphilic surface properties of GO [19,20].…”

Robust fluorescence sensing platform for detection of CD44 cells based on graphene oxide/gold nanoparticles

“…Furthermore, the binding between nanomaterials and ssDNA increases electrostatic repulsion and keeps the quenching efficiencies [46]. The synergistic effect from simultaneous fluorescence quenching using GO and AuNPs may give a higher fluorescence intensity compared to GO [32][33][34][35]46]. Therefore, these noticeable differences of fluorescence intensity based on GO/AuNPs facilitate more accurate and sensitive detection.…”

“…Therefore, combining of the AuNPs onto the surface of GO (GO/AuNPs) can improve the stability in solution and maintain a certain distance from GO. Moreover, GO/AuNPs allows higher quenching efficiency than GO or AuNPs alone that can provide a good signal-to-background ratio for improving the performance of fluorescent methods [32][33][34][35]. The integral transmembrane protein CD44 is the primary receptor for hyaluronic acid (HA).…”