We report a convenient method to incorporate pi-electron units into peptides that assemble into amyloid-like supramolecular polymers, discussing the scope of the process and preliminary characterization of the resulting nanomaterials. Self-assembly manipulates these "electronic peptides" into delocalized sub-10 nm 1-D nanostructures under completely aqueous conditions.

The promising crystallinity and tunable redox capabilities of naphthalene diimides make them attractive candidates as electroactive materials for organic-based lithium-ion batteries. In this study, a family of naphthalene diimide derivates was synthesized and their redox properties explored with the intent of unveiling structures with reduction potentials that are higher than those encountered in previous organic redox processes. Changes in the electronic characteristics of the aryl substituents resulted in materials with discharge potentials that vary from 2.3 to 2.9 V vs Li/Li+, with discharge capacities as high as 121 mAh/g.

Safety culture is often divided into three domains, which include personal, environmental, and behavioral factors. In order to improve the behavioral components of the safety culture in the research group of the authors (the Garcia-Garibay group, or GG research group), we implemented three safety practices intended to sensitize group members on the importance of best practices that depend on simple actions taken by individual researchers. These best practices include (1) a rotating twice-daily safety inspection to enhance an appreciation for the value of safety regulations that may be considered less significant and are frequently overlooked, (2) frequent safety discussions followed by quizzes to give researchers an opportunity to assess their safety knowledge on a range of topics, and (3) the use of an overnight reaction form that is posted on lab entryways as a safety communication best practice to ensure that other researchers in the laboratory and emergency responders are aware of the potential hazards associated with ongoing chemical reactions that do not require continual monitoring. To determine the impact of these measures we analyzed the UCLA Office of Environment, Health and Safety (EH&S) laboratory safety inspection records from the GG research group and compared the findings with those of all other experimental research groups in the Department of Chemistry and Biochemistry at UCLA from the period of 2011 to 2013. We propose that in the absence of any other (either punitive or rewarding) actions, an accelerated improvement in the reduction of the number of inspection findings in the GG research group can be associated with behavioral components of a safety culture addressed by those measures.

With a rigid fused polyaromatic framework and a well-defined, highly symmetric molecular geometry, pentiptycenes are appealing building blocks for a variety of materials applications. Unfortunately, their use has been limited by the lengthy syntheses of their functionalized derivatives. This communication describes a highly efficient, brief, divergent paradigm for the preparation of octakis-substituted pentiptycene derivatives that starts with the preparation of an octakis(bromo) compound, which can be used as a Pd(0)-catalyzed coupling partner with suitable organometallic compounds to install a range of groups in high yields at the peripheral 2,3,6,7,14,15,19,20 positions, including methyl, allyl, vinyl, alkynyl, aryl, heteroaryl, and even bulky 4-(triphenylmethyl)phenyl substituents.

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