M
Megan K. Petti
Researcher at University of Wisconsin-Madison
Publications - 7
Citations - 164
Megan K. Petti is an academic researcher from University of Wisconsin-Madison. The author has contributed to research in topics: Surface plasmon & Localized surface plasmon. The author has an hindex of 5, co-authored 7 publications receiving 105 citations.
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Journal ArticleDOI
Two-Dimensional Spectroscopy Is Being Used to Address Core Scientific Questions in Biology and Materials Science
TL;DR: The ways in which two-dimensional visible and infrared spectroscopies are being applied to elucidate fundamental details of important processes in biological and materials science are provided.
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Not All β-Sheets Are the Same: Amyloid Infrared Spectra, Transition Dipole Strengths, and Couplings Investigated by 2D IR Spectroscopy
TL;DR: The results indicate that the amide I frequency is very sensitive to amyloid β-sheet structure, the β-sheets of these 4 proteins are not identical, and the assumption that frequency of amyloids scales withβ-sheet size cannot be adopted without an accompanying measurement of transition dipole strengths.
Journal ArticleDOI
Enhancing the signal strength of surface sensitive 2D IR spectroscopy.
Megan K. Petti,Joshua S. Ostrander,Vivek Saraswat,Erin R. Birdsall,Kacie L. Rich,Justin P. Lomont,Michael S. Arnold,Martin T. Zanni +7 more
TL;DR: Surface enhanced attenuated reflection 2D infrared (SEAR 2D IR) spectroscopy, a method that combines localized surface plasmons with a reflection pump-probe geometry to achieve monolayer sensitivity, is presented.
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A Different hIAPP Polymorph Is Observed in Human Serum Than in Aqueous Buffer: Demonstration of a New Method for Studying Amyloid Fibril Structure Using Infrared Spectroscopy.
TL;DR: The experiments provide a new method for using infrared spectroscopy to monitor the structure of proteins under physiological conditions and reveal the formation of a significantly different polymorph structure in the most important region of hIAPP.
Journal ArticleDOI
A Proposed Method to Obtain Surface Specificity with Pump–Probe and 2D Spectroscopies
Megan K. Petti,Joshua S. Ostrander,Erin R. Birdsall,Miriam Bohlmann Kunz,Zachary T Armstrong,Ariel M. Alperstein,Martin T. Zanni +6 more
TL;DR: It is proposed that these singularly cross-polarized schemes provide odd-ordered spectroscopies the surface-specificity typically associated with even-ordered techniques.