Zobrazeno 1 - 10
of 484
pro vyhledávání: '"Helen Ghiradella"'
Autor:
Helen Ghiradella
Publikováno v:
Journal of morphology. 177(2)
Flashing fireflies were permitted to breathe osmium tetroxide vapor, after which the lanterns were removed and the sites of absorption of the osmium into the tissues were detected in two ways: (1) by sonication to remove soft tissues, that is, those
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05484a6f43ed7fc2dccdb8f0e529bd06
https://pubmed.ncbi.nlm.nih.gov/30064182
https://pubmed.ncbi.nlm.nih.gov/30064182
Autor:
Cheryl Margaret Surman, Sergiy Zalyubovskiy, William G. Morris, Tao Deng, Andrew David Pris, Alexey Vert, Yogen Vishwas Utturkar, Radislav A. Potyrailo, Helen Ghiradella
Publikováno v:
Nature Photonics. 6:195-200
Inspired by thermal expansion and refractive index changes in the nanostructures of iridescent Morpho butterfly scales, scientists demonstrate upconverted mid-wave infrared detection with a temperature sensitivity of 18–62 mK and a heat-sink-free r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68462e96b517d573c740bd67cc877d24
https://doi.org/10.1038/nphoton.2011.355
https://doi.org/10.1038/nphoton.2011.355
Autor:
Katharine Dovidenko, Helen Ghiradella, A. Vertiatchikh, James R. Cournoyer, Radislav A. Potyrailo, Eric R Olson
Publikováno v:
Nature Photonics. 1:123-128
Tropical Morpho butterflies are famous for their brilliant iridescent colours, which arise from ordered arrays of scales on their wings. Here we show that the iridescent scales of the Morpho sulkowskyi butterfly give a different optical response to d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb0ce95b3c5f92324fb4210c17fb7645
https://doi.org/10.1038/nphoton.2007.2
https://doi.org/10.1038/nphoton.2007.2
Autor:
Erin M. McCoy, Thomas Eisner, Matthew Gronquist, Jerrold Meinwald, Helen Ghiradella, David Hill, Frank C. Schroeder
Publikováno v:
CHEMOECOLOGY. 16:39-43
Lucidota atra, a diurnal firefly, shares possession of defensive steroids (lucibufagins or LBGs) with nocturnal fireflies of the genus Photinus. Photinus are protected against predators by their LBGs, but not against fireflies of the genus Photuris,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bffaf041784db122c15f2a9e64f5b01d
https://doi.org/10.1007/s00049-005-0325-5
https://doi.org/10.1007/s00049-005-0325-5
Autor:
John T. Schmidt, Helen Ghiradella
Publikováno v:
Integrative and Comparative Biology. 44:203-212
SYNOPSIS. The mysterious process by which fireflies can control their flashing has inspired over a century of careful observation but has remained elusive. Many studies have implicated oxygen as the controlling element in the photochemical reaction,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f32a71e376863ee49583ed26ba2ee755
https://doi.org/10.1093/icb/44.3.203
https://doi.org/10.1093/icb/44.3.203
Autor:
Lars Olof Björn, Helen Ghiradella
Publikováno v:
Photobiology ISBN: 9781493914678
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8100e77baf95dfbacb2ddb74c604d86
https://doi.org/10.1007/978-1-4939-1468-5_26
https://doi.org/10.1007/978-1-4939-1468-5_26
Autor:
Lars Olof Björn, Helen Ghiradella
Publikováno v:
Photobiology ISBN: 9781493914678
Spectral tuning is a diverse topic, both with regard to mechanism and with regard to biological significance. We have touched upon a related topic already when dealing with quantum dots in Chap. 5. In organisms, spectral tuning can be achieved both b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51ffda5a92457cf9cc9636f7712ffd62
https://doi.org/10.1007/978-1-4939-1468-5_9
https://doi.org/10.1007/978-1-4939-1468-5_9
Publikováno v:
Photobiology ISBN: 9781493914678
Structural colors occur in various kinds of animals, and even in plants, but are particularly prominent in insects and birds. They are formed by the interaction of light with materials with very specific (and usually complex) micro, nanoscale archite
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c893eadf3d252f9274cbc77060bb3202
https://doi.org/10.1007/978-1-4939-1468-5_10
https://doi.org/10.1007/978-1-4939-1468-5_10
Autor:
Gregory Goddard, James C. Grande, Peter Vukusic, Michael Larsen, Sheng Zhong, Radislav A. Potyrailo, Gilad Zorn, Manuel A. Palacios, Rajesh R. Naik, Tao Deng, Timothy J. Bunning, Zhexiong Tang, Milana Vasudev, Helen Ghiradella, Sergey Zalubovsky, Timothy A. Starkey
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America. 110(39)
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 func
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df31f42abd08f154f331aa5d5314ea5d
https://pubmed.ncbi.nlm.nih.gov/24019497
https://pubmed.ncbi.nlm.nih.gov/24019497
Autor:
Helen Ghiradella
Publikováno v:
Microscopy Research and Technique. 27:429-438
All butterfly and moth scales and bristles are made of non-living insect cuticle. Each is the product of a single epithelial cell, and all share the same basic architecture. However, some are highly specialized, and their cuticle is further elaborate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8999fe52de5ec2692965797daff57156
https://doi.org/10.1002/jemt.1070270509
https://doi.org/10.1002/jemt.1070270509