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| Content Provider | PubMed Central |
|---|---|
| Author | Potyrailo, Radislav A. Bonam, Ravi K. Hartley, John G. Starkey, Timothy A. Vukusic, Peter Vasudev, Milana Bunning, Timothy Naik, Rajesh R. Tang, Zhexiong Palacios, Manuel A. Larsen, Michael Tarte, Laurie A. Le Grande, James C. Zhong, Sheng Deng, Tao |
| Copyright Year | 2015 |
| Abstract | Combining vapour sensors into arrays is an accepted compromise to mitigate poor selectivity of conventional sensors. Here we show individual nanofabricated sensors that not only selectively detect separate vapours in pristine conditions but also quantify these vapours in mixtures, and when blended with a variable moisture background. Our sensor design is inspired by the iridescent nanostructure and gradient surface chemistry of Morpho butterflies and involves physical and chemical design criteria. The physical design involves optical interference and diffraction on the fabricated periodic nanostructures and uses optical loss in the nanostructure to enhance the spectral diversity of reflectance. The chemical design uses spatially controlled nanostructure functionalization. Thus, while quantitation of analytes in the presence of variable backgrounds is challenging for most sensor arrays, we achieve this goal using individual multivariable sensors. These colorimetric sensors can be tuned for numerous vapour sensing scenarios in confined areas or as individual nodes for distributed monitoring. |
| Related Links | http://dx.doi.org/10.1038/ncomms8959 |
| Starting Page | 7959 |
| File Format | |
| ISSN | 20411723 |
| e-ISSN | 20411723 |
| Journal | Nature Communications |
| Volume Number | 6 |
| Language | English |
| Publisher | Nature Pub. Group |
| Publisher Date | 2015-09-01 |
| Access Restriction | Open |
| Rights Holder | Nature Pub. Group |
| Subject Keyword | Biochemistry, Genetics and Molecular Biology(all) Physics and Astronomy(all) Chemistry(all) Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Physics and Astronomy Biochemistry, Genetics and Molecular Biology |
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