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Biomimetic Fabrication and Catalytic Application of Pd Nanoparticle Networks 1 Marc R. Knecht, University of Miami, DMR 1145175.

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  1. Biomimetic Fabrication and Catalytic Application of Pd Nanoparticle Networks 1Marc R. Knecht, University of Miami, DMR 1145175 In this project, we are exploring the capabilities of self-assembling peptide templates for the fabrication of inorganic materials. The structure of the materials is controlled by the amount of metal ions loaded into the template (top figure). In this sense, at low metal loadings, spherical particles are prepared, while at high metal loadings branched nanoparticle networks (NPNs) are formed within the biological scaffold. Using this approach, catalytically active Pd materials have been fabricated (bottom figure) and used to drive the Stille C-C coupling reaction as well as the reduction of 4-nitrophenol. The materials are active under ambient conditions, thus positioning them well for future biocatalytic and materials designs where such approaches are needed in light of current energy concerns. Increased Pd loadings Pd nanoparticles Pd NPNs H2

  2. Biomimetic Fabrication and Catalytic Application of Pd Nanoparticle Networks 1Marc R. Knecht, University of Miami, DMR 1145175 Undergraduate student retention within STEM disciplines remains significantly challenging to ensure an educated future research workforce. Unfortunately, many introductory courses are presented in a large lecture format, which leads to an impersonal nature for students accustomed to small classes in high school. To overcome this limitation, we have developed a Chemistry Movie Night program that exposes students to science and the department simultaneously to minimize this perceived impersonal nature. During the program, the students are introduced to faculty and other members of the department, as well as the science, before the movie is presented. This helps to focus their attention on the actual science and to aid in their determination of its accuracy. After the movie viewing, subsequent meetings are held with experts on the movie’s topic to discuss the area of research and its portrayal in the film. This close contact with both STEM researchers and the topic is anticipated to minimize the impersonal nature of introductory classes to lead to student retention.

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