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Diphenylalanine-derivative peptide assemblies with increased aromaticity exhibit metal-like rigidity and high piezoelectricity

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dc.contributor.author Basavalingappa, Vasantha
dc.contributor.author Bera, Santu
dc.contributor.author Xue, Bin
dc.contributor.author O'Donnell, Joseph
dc.contributor.author Guerin, Sarah
dc.contributor.author Cazade, Pierre-André
dc.contributor.author Yuan,, Hui
dc.contributor.author Ul Haq, Ehtsham
dc.contributor.author Silien, Christophe
dc.contributor.author Tao, Kai
dc.contributor.author Shimon, Linda J. W.
dc.contributor.author Tofail, Syed A.M.
dc.contributor.author Thompson, Damien
dc.contributor.author Kolusheva, Sofiya
dc.contributor.author Yang, Rusen
dc.contributor.author Cao, Yi
dc.contributor.author Gazit, Ehud
dc.date.accessioned 2020-06-24T13:33:09Z
dc.date.issued 2020
dc.identifier.uri http://hdl.handle.net/10344/8955
dc.description peer-reviewed en_US
dc.description.abstract Diphenylalanine (FF) represents the simplest peptide building block that selfassembles into ordered nanostructures with interesting physical properties. Among self-assembled peptide structures, FF nanotubes display notable stiffness and piezoelectric parameters (Young’s modulus =19-27 GPa, strain coefficient d33= 18 pC/N). Yet, inorganic alternatives remain the major materials of choice for many applications due to higher stiffness and piezoelectricity. Here, aiming to broaden the applications of the FF motif in materials chemistry, we designed three phenylrich dipeptides based on the β,β-diphenyl-Ala-OH (Dip) unit: Dip-Dip, cyclo-Dip-Dip, and tertbutyloxycarbonyl (Boc)-Dip-Dip. The doubled number of aromatic groups per unit, compared to FF, produced a dense aromatic zipper network with dramatically improved Young’s modulus of ~70 GPa which is comparable to aluminium. Piezoelectric strain coefficient d33 of ~73 pC/N of such assembly exceeds that of poled polyvinylidene-fluoride (PVDF) polymers and compares well to that of lead zirconium titanate (PZT) thin films and ribbons. The rationally-designed π-π assemblies show a voltage coefficient of 2-3 Vm/N, an order of magnitude higher than PVDF, improved thermal stability up to 360ºC (~60ºC higher than FF) and useful photoluminescence with wide-range excitation-dependent emission in the visible region. Our data demonstrate that aromatic groups improve the rigidity and piezoelectricity of organic self-assembled materials for numerous applications. en_US
dc.language.iso eng en_US
dc.publisher American Chemical Society en_US
dc.relation 694426 en_US
dc.relation.ispartofseries ACS Nano;14 (6), pp. 7025-7037
dc.relation.uri https://doi.org/10.1021/acsnano.0c01654
dc.subject aromatic-rich peptides en_US
dc.subject crystal engineering en_US
dc.subject energy harvesting en_US
dc.subject metallic Young’s modulus en_US
dc.subject photoluminescence en_US
dc.title Diphenylalanine-derivative peptide assemblies with increased aromaticity exhibit metal-like rigidity and high piezoelectricity en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1021/acsnano.0c01654
dc.contributor.sponsor ERC en_US
dc.contributor.sponsor IRC en_US
dc.contributor.sponsor National Natural Science Foundation of China en_US
dc.contributor.sponsor Natural Science Foundation of Jiangsu province en_US
dc.contributor.sponsor Echnological Innovation Foundation of Nanjing University en_US
dc.contributor.sponsor SFI en_US
dc.relation.projectid 694426 en_US
dc.relation.projectid 11804148 en_US
dc.relation.projectid BK20180320 en_US
dc.relation.projectid XJ2020013501 en_US
dc.relation.projectid 020414913413) en_US
dc.relation.projectid GOIPG/2018/1161 en_US
dc.relation.projectid 12/RI/2345/SOF en_US
dc.relation.projectid 15/CDA/3491 en_US
dc.relation.projectid 12/RC/2275 en_US
dc.date.embargoEndDate 2021-05-22
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US


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