Biomimetic nanoporous anodic alumina distributed Bragg reflectors in the form of films and microsized particles for sensing applications

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dc.contributor.authorChen, Y.
dc.contributor.authorSantos, A.
dc.contributor.authorWang, Y.
dc.contributor.authorKumeria, T.
dc.contributor.authorLi, J.
dc.contributor.authorWang, C.
dc.contributor.authorLosic, D.
dc.date.issued2015
dc.description.abstractIn this study, we produce for the first time biomimetic films and microsized particles based on nanoporous anodic alumina distributed Bragg reflectors (NAA-DBRs) by a rational galvanostatic pulse-anodization approach. These biomimetic photonic structures can feature a broad range of vivid bright colors, which can be tuned across the UV−visible spectrum by engineering their nanoporous structure through different anodization parameters. The effective medium of NAA-DBRs films is systematically assessed as a function of the anodization period, the anodization temperature, and the current density ratio by reflectometric interference spectroscopy (RIfS). This analysis makes it possible to establish the most sensitive structure toward changes in its effective medium. Subsequently, specific detection of vitamin C molecules is demonstrated. The obtained results reveal that NAA-DBRs with optimized structure can achieve a low limit of detection for vitamin C molecules as low as 20 nM, a sensitivity of 227 ± 4 nmμM−1, and a linearity of 0.9985. Finally, as proof of concept, we developed a new photonic nanomaterial based on NAA-DBR microsized particles, which could provide new opportunities to produce microsized photonic analytical tools.
dc.description.statementofresponsibilityYuting Chen, Abel Santos, Ye Wang, Tushar Kumeria, Junsheng Li, Changhai Wang and Dusan Losic
dc.identifier.citationACS applied materials & interfaces, 2015; 7(35):19816-19824
dc.identifier.doi10.1021/acsami.5b05904
dc.identifier.issn1944-8244
dc.identifier.issn1944-8252
dc.identifier.orcidSantos, A. [0000-0002-5081-5684]
dc.identifier.orcidLosic, D. [0000-0002-1930-072X]
dc.identifier.urihttp://hdl.handle.net/2440/101378
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.relation.granthttp://purl.org/au-research/grants/arc/DE140100549
dc.relation.granthttp://purl.org/au-research/grants/arc/DP120101680
dc.relation.granthttp://purl.org/au-research/grants/arc/FT110100711
dc.rights© 2015 American Chemical Society
dc.source.urihttps://doi.org/10.1021/acsami.5b05904
dc.subjectPulse anodization; structural engineering; nanoporous anodic alumina; biomimetic photonic coatings; reflectometric interference spectroscopy
dc.titleBiomimetic nanoporous anodic alumina distributed Bragg reflectors in the form of films and microsized particles for sensing applications
dc.typeJournal article
pubs.publication-statusPublished

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