Polydopamine-Stabilized Aluminum Nanocrystals: Aqueous Stability and Benzo[a]pyrene Detection

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dc.citation.firstpage3117en_US
dc.citation.issueNumber3en_US
dc.citation.journalTitleACS Nanoen_US
dc.citation.lastpage3124en_US
dc.citation.volumeNumber13en_US
dc.contributor.authorRenard, Daviden_US
dc.contributor.authorTian, Shuen_US
dc.contributor.authorAhmadivand, Arashen_US
dc.contributor.authorDeSantis, Christopher J.en_US
dc.contributor.authorClark, Benjamin D.en_US
dc.contributor.authorNordlander, Peteren_US
dc.contributor.authorHalas, Naomi J.en_US
dc.contributor.orgLaboratory for Nanophotonicsen_US
dc.date.accessioned2019-08-16T14:47:27Zen_US
dc.date.available2019-08-16T14:47:27Zen_US
dc.date.issued2019en_US
dc.description.abstractAluminum nanocrystals have emerged as an earth-abundant material for plasmonics applications. Al nanocrystals readily oxidize in aqueous-based solutions, however, transforming into highly stratified γ-AlOOH nanoparticles with a 700% increase in surface area in a matter of minutes. Here we show that by functionalizing Al nanocrystals with the bioinspired polymer polydopamine, their stability in aqueous media is dramatically increased, maintaining their integrity in aqueous solution for over 2 weeks with no discernible structural changes. Polydopamine functionalization also provides a molecular capture layer that enables the capture of polycyclic aromatic hydrocarbon pollutants in H2O samples and their detection by surface-enhanced Raman spectroscopy, when polydopamine-stabilized Al nanocrystal aggregates are used as substrates. This approach was used to detect a prime carcinogenic H2O pollutant, benzo[a]pyrene with a sensitivity in the sub part-per-billion range.en_US
dc.identifier.citationRenard, David, Tian, Shu, Ahmadivand, Arash, et al.. "Polydopamine-Stabilized Aluminum Nanocrystals: Aqueous Stability and Benzo[a]pyrene Detection." <i>ACS Nano,</i> 13, no. 3 (2019) American Chemical Society: 3117-3124. https://doi.org/10.1021/acsnano.8b08445.en_US
dc.identifier.doihttps://doi.org/10.1021/acsnano.8b08445en_US
dc.identifier.urihttps://hdl.handle.net/1911/106256en_US
dc.language.isoengen_US
dc.publisherAmerican Chemical Societyen_US
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the American Chemical Society.en_US
dc.subject.keywordH2O stabilityen_US
dc.subject.keywordSERS detectionen_US
dc.subject.keywordaluminumen_US
dc.subject.keywordnanoparticlesen_US
dc.subject.keywordpolydopamineen_US
dc.titlePolydopamine-Stabilized Aluminum Nanocrystals: Aqueous Stability and Benzo[a]pyrene Detectionen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpost-printen_US
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