St. Mary's College of Maryland 3 articles published in JoVE Chemistry Localized Bathless Metal-Composite Plating via Electrostamping Troy K. Townsend*1, Juliana Hancock*1, Carter Russell*1, Jason P. Shaw*2 1 Presented here is a protocol of bathless electroplating, where a stagnant metal salt paste containing composite particles are reduced to form metal composites at high loading. This method addresses the challenges faced by other common forms of electroplating (jet, brush, bath) of embedding composites particles into the metal matrix. Engineering Fabrication of Fully Solution Processed Inorganic Nanocrystal Photovoltaic Devices Troy K. Townsend1, Dario Durastanti1, William B. Heuer2, Edward E. Foos3, Woojun Yoon4, Joseph G. Tischler4 1 This protocol describes the synthesis and solution deposition of inorganic nanocrystals layer by layer to produce thin film electronics on non-conductive surfaces. Solvent-stabilized inks can produce complete photovoltaic devices on glass substrates via spin and spray coating following post-deposition ligand exchange and sintering. Behavior Operant Procedures for Assessing Behavioral Flexibility in Rats Anne Marie Brady1, Stan B. Floresco2 1 The ability to assess executive functions such as behavioral flexibility in rats is useful for investigating the neurobiology of cognition in both intact animals and disease models. Here we describe automated tasks for assessing strategy shifting and reversal learning, which are particularly sensitive to disruptions in prefrontal cortical networks.