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dc.contributor.authorMunro, C.J.*
dc.contributor.authorHughes, Zak E.*
dc.contributor.authorWalsh, T.R.*
dc.contributor.authorKnecht, M.R.*
dc.date.accessioned2018-05-03T10:52:44Z
dc.date.available2018-05-03T10:52:44Z
dc.date.issued2016-08-25
dc.identifier.citationMunro CJ, Hughes ZE, Walsh TR et al (2016) Peptide sequence effects control the single pot reduction, nucleation, and growth of Au nanoparticles. The Journal of Physical Chemistry C. 120(33): 18917-18924.
dc.identifier.urihttp://hdl.handle.net/10454/15761
dc.descriptionYes
dc.description.abstractPeptides have demonstrated unique capabilities to fabricate inorganic nanomaterials of numerous compositions through noncovalent binding of the growing surface in solution. In this contribution, we demonstrate that these biomolecules can control all facets of Au nanoparticle fabrication, including Au3+ reduction, without the use of secondary reagents. In this regard using the AuBP1 peptide, the N-terminal tryptophan residue is responsible for driving Au3+ reduction to generate Au nanoparticles passivated by the oxidized peptide in solution, where localized residue context effects control the reducing strength of the biomolecule. The process was fully monitored by both time-resolved monitoring of the growth of the localized surface plasmon resonance and transmission electron microscopy. Nanoparticle growth occurs by a unique disaggregation of nanoparticle aggregates in solution. Computational modeling demonstrated that the oxidized residue of the peptide sequence does not impact the biomolecule’s ability to bind the inorganic surface, as compared to the parent peptide, confirming that the biomolecule can be exploited for all steps in the nanoparticle fabrication process. Overall, these results expand the utility of peptides for the fabrication of inorganic nanomaterials, more strongly mimicking their use in nature via biomineralization processes. Furthermore, these capabilities enhance the simplicity of nanoparticle production and could find rapid use in the generation of complex multicomponent materials or nanoparticle assembly.
dc.description.sponsorshipAir Force Office of Scientific Research, grant FA9550-12-1-0226.
dc.language.isoen
dc.rights© 2016 ACS. This document is the Accepted Manuscript version of a Published Work that appeared in final form in the Journal of Physical Chemistry C, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://dx.doi.org/10.1021/acs.jpcc.6b06046
dc.subjectBio-nanotechnology
dc.subjectPeptides
dc.subjectSimulation
dc.subjectGold nanoparticles
dc.titlePeptide sequence effects control the single pot reduction, nucleation, and growth of Au nanoparticles
dc.status.refereedYes
dc.date.application2016-08-08
dc.typeArticle
dc.type.versionAccepted manuscript
dc.identifier.doihttps://doi.org/10.1021/acs.jpcc.6b06046
dc.rights.licenseUnspecified
refterms.dateFOA2018-07-28T03:56:16Z
dc.openaccess.statusopenAccess


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