A Novel Approach to Prepare Gold Nanoparticles/Polyacrylamide Composite Nanofibers

Gold nanoparticles were prepared in an aqueous solution with polyacrylamide to reduce HAuCl4. The polyacrylamide played double roles in the preparation of Au nanoparticles. Firstly, it acted as reducing reagent; in addition, it also stabilized the Au nanoparticles to prevent agglomeration and provided environment for forming nanostructure around Au nanoparticles. UV-vis spectra of the Au nanocrystals colloids reveal the plasmon resonance peak position. TEM confirms the presence of gold nanoparticles in the fibers. This is a versatile and applicable approach to prepare many other combinations of functional fibers electrospun.