Journal of Physical Chemistry B
Journal of Physical Chemistry B
5 years ago

Solid-State NMR Study of the Cicada Wing

Solid-State NMR Study of the Cicada Wing
John D. Gullion, Terry Gullion
Wings of flying insects are part of the cuticle which forms the exoskeleton. The primary molecular components of cuticle are protein, chitin, and lipid. How these components interact with one another to form the exoskeleton is not completely understood. The difficulty in characterizing the cuticle arises because it is insoluble and noncrystalline. These properties severely limit the experimental tools that can be used for molecular characterization. Solid-state nuclear magnetic resonance experiments have been used in the past to characterize the exoskeleton of beetles and have found that chitin and protein make comparable contributions to the molecular matrix. However, little work has been done to characterize the components of the wing, which includes vein and membrane. In this work, solid-state NMR was used to characterize the wing of the 17-year cycle cicada (Magicicada cassini) that appeared in northern West Virginia during the summer of 2016. The NMR results show noticeable differences between the molecular components of the vein and membrane.

Publisher URL: http://dx.doi.org/10.1021/acs.jpcb.7b05598

DOI: 10.1021/acs.jpcb.7b05598

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