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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Vasudev, Milana Larsen, Michael Goddard, Gregory Deng, Tao Vukusic, Peter Zorn, Gilad Zalubovsky, Sergey Starkey, Timothy A. Grande, James C. Tang, Zhexiong Bunning, Timothy Palacios, Manuel Potyrailo, Radislav A. Naik, Rajesh R. Ghiradella, Helen Zhong, Sheng |
| Description | Author Affiliation: Potyrailo RA ( General Electric Global Research Center, Niskayuna, NY 12309.); |
| Abstract | For almost a century, the iridescence of tropical Morpho butterfly scales has been known to originate from 3D vertical ridge structures of stacked periodic layers of cuticle separated by air gaps. Here we describe a biological pattern of surface functionality that we have found in these photonic structures. This pattern is a gradient of surface polarity of the ridge structures that runs from their polar tops to their less-polar bottoms. This finding shows a biological pattern design that could stimulate numerous technological applications ranging from photonic security tags to self-cleaning surfaces, gas separators, protective clothing, sensors, and many others. As an important first step, this biomaterial property and our knowledge of its basis has allowed us to unveil a general mechanism of selective vapor response observed in the photonic Morpho nanostructures. This mechanism of selective vapor response brings a multivariable perspective for sensing, where selectivity is achieved within a single chemically graded nanostructured sensing unit, rather than from an array of separate sensors. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 39 |
| Volume Number | 110 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2013-09-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Animal Structures Anatomy & Histology Butterflies Pigmentation Drug Effects Animals Computer Simulation Optical Phenomena Oxygen Pharmacology Reproducibility Of Results Surface Properties Volatilization Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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