To obtain a tunable synthesis method for bio-templated nanoparticles, a study was undertaken to establish the relationships between concentration / purity of peptide, pH of the synthesis medium, temperature, type and concentration of reducing agent.  Nanoparticles were synthesized using three copies of the Pd4 peptide fused to the N-terminus of Green Fluorescent Protein ((Pd4)<sub>3</sub>GFP).  Batches varied in pH (5 – 9), temperature (25 – 80 °C), choice of reducing agent (from five), and ratio of reducing agent to metal salt (4 – 400 eq.).  Nanoparticle properties were characterized by transmission electron microscopy (TEM), UV-visible spectroscopy, energy-dispersive X-ray spectroscopy, and high resolution TEM (HRTEM).  Results demonstrate that palladium nanoparticles can be synthesized in different sizes (2 – 10 nm) and properties based on the parameters that were chosen

Study of protein and peptide-directed nanoparticle synthesis for catalytic materials

256th National Meeting (2018)

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