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Christopher Johnson on Muck Rack

Christopher Johnson

Richmond
As seen in: Emerging Infectious Diseases, Nature, PLOS, PLOS Biology, PLOS ONE, MDPI, Taylor & Francis Online, The Conversation, ACS Publications, Science Magazine and
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Articles

Correlating solvation shell dynamics and ion transport in highly ordered nanoporous polymers

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By Ranadeb Ball, Christopher Johnson, Lizhu Zhang, Rebecca Hopkins, Karen I. Winey, Amish Patel Verified, Chinedum O. Osuji, Jessica M. Anna, Junkyu Hwang
| Nature Verified
Abstract A molecular-level understanding of the role of hydration in ion transport is essential for developing next generation polymeric anion exchange membranes (AEMs). However, progress towards this goal is hindered by the structural heterogeneity of conventional membranes, complex ion-water and ion-membrane interactions, and dynamics that occur over femtosecond to millisecond timescales.
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Upcycling waste polystyrene to adipic acid through a hybrid chemical and biological process - Nature Communications

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By Hyunjin Moon, Jason DesVeaux, Young-Saeng C. Avina, Hyeongeon Lee, Kwangjin An, Joel Miscall, Kelsey Ramirez Verified, Christopher Johnson, Davinia Salvachua, Bruno C. Klein, Taylor Uekert, Allison Werner, Shannon Stahl
| Nature Verified
Abstract Oxidative catalytic depolymerization of polystyrene (PS) can produce benzoic acid, but the annual consumption of benzoic acid is ~40 times lower than PS. For this catalytic oxidation method to be a viable means to manage PS waste, benzoic acid should be converted to higher-volume chemicals. We demonstrate a hybrid chemical and biological process that uses PS as feedstock for production of adipic acid, a high-volume co-monomer for nylon 6,6 via benzoic acid.
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Fauna-sensitive road design in practice: lessons from Australia

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By Christopher Johnson, Darryl Jones, Tony Matthews, Matthew Burke
| Taylor & Francis Online
Abstract Fauna-sensitive road design (FSRD) seeks to reduce the ecological impacts of transport infrastructure, yet its application in Australia remains inconsistent and context-dependent. This study examines how FSRD is shaped by policy and institutional settings in Queensland and Victoria, combining Institutional Grammar Tool (IGT) analysis of key guidance documents with interviews from 22 practitioners.
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