journal article·2020-01-23

Molecular-Level Insights into Biologically Driven Graphite Exfoliation for the Generation of Graphene in Aqueous Media

Atul D. Parab, Akin Budi, Joseph M. Slocik, Rahul Rao, Rajesh R. Naik, Tiffany R. Walsh, Marc R. Knecht

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Abstract

The ability to exfoliate graphene in aqueous systems is critical for many applications. Peptide/materials recognition offers a multipurpose strategy for realizing such exfoliation and also organization and activation of 2D materials; however, lack of fundamental insights limits progress. Here we show that a graphene-binding peptide can provide an unprecedented degree of graphene exfoliation in water. A fatty-acid modification of the peptide produces similar results while conferring a remarkable reduction in sheet damage. Molecular simulations provide detailed insights into key stages and offer an explanation for sheet protection. These findings open new vistas into the design of ligands for aqueous exfoliation, organization, and activation of 2D materials.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Graphene and Nanomaterials Applications · Graphene research and applications · Supramolecular Self-Assembly in Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States

Institute for Frontier Materials, Deakin University, Waurn Ponds, VIC 3216, Australia

Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433, United States

Dr. J.T. Macdonald Foundation Biomedical Nanotechnology Institute, University of Miami, UM Life Science Technology Building, 1951 NW Seventh Ave, Suite 475, Miami, Florida 33136, United States

Funding

Air Force Office of Scientific Research

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