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CBET-0644850 CAREER: Heterogeneous and Competitive Self-assembly

5 m. Task #1: To Self-assemble Heterogeneous Colloidal Lattices at Pickering Emulsion Interfaces. Colloidal lattices have unique applications in photonic crystals, chemical & biochemical sensors, and optical devices. Preliminary study shows the formation of single

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CBET-0644850 CAREER: Heterogeneous and Competitive Self-assembly

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  1. 5 m Task #1: To Self-assemble Heterogeneous Colloidal Lattices at Pickering Emulsion Interfaces Colloidal lattices have unique applications in photonic crystals, chemical & biochemical sensors, and optical devices. Preliminary study shows the formation of single species colloidal lattices; current work focuses on binary particles. The work willprovide a new way to functionalize novel materials. A single species 2-D Colloidal Lattice CBET-0644850 CAREER: Heterogeneous and Competitive Self-assembly at Liquid-Liquid Interfaces Lenore L. Dai, Department of Chemical Engineering, Texas Tech University Goals: To Integrate research and education centering on heterogeneous and competitive self-assembly at liquid-liquid interfaces. The work is of both fundamental and practical significance.

  2. Liquid B Liquid A CBET-0644850 CAREER: Heterogeneous and Competitive Self-assembly at Liquid-Liquid Interfaces (Continued) Lenore L. Dai, Department of Chemical Engineering, Texas Tech University TASK #2: To Use Solid Particles to Stabilize Double Emulsions Feasibility study: a water-in-oil-in-water double emulsion stabilized by 70 nm silver particles Double emulsions have wide potential applications in foods, cosmetics, and pharmaceuticals. Here we use solid particles, instead of surfactants, as stabilizers to overcome the major limitation (stability and surfactant complexity /toxicity) that inhibited them from featuring in commercial applications.

  3. CBET-0644850 CAREER: Heterogeneous and Competitive Self-assembly at Liquid-Liquid Interfaces (Continued) Lenore L. Dai, Department of Chemical Engineering, Texas Tech University Task #3: To Simulate Heterogeneous or Competitive Self-assembly of Nanoparticles and Surfactants at Liquid-Liquid Interfaces Many industrial processes are performed in the presence of both nanoparticles and surfactants. We provide molecular level information using molecular dynamics (MD) simulations. In-situ self-assembly of nanoparticles (in red) and surfactants (in yellow) Task #4: To Integrate Research and Education (Broader Impacts) Establish research-related examples and open-ended projects in courses; promote graduate and undergraduate research; establish a special summer program to recruit under-represented groups; participate in teacher training; collaborate with NanoKey, 3M, and PPG.

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