Publications by authors named "Patrick Hays"

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Dark-to-Bright Exciton Transition in 2D Janus Excitonic Semiconductors via Metal Cation Alloying.
Jan Kopaczek, Patrick Hays, Huan Wu, Blake Povilus, Melike Erdi

ACS Nano· November 2025

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Optical imaging of flavor order in flat band graphene.
Tian Xie, Tobias M Wolf, Siyuan Xu, Zhiyuan Cui, Richen Xiong, Patrick Hays

Nat Commun· July 2025

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Toward high-current-density and high-frequency graphene resonant tunneling transistors.
Zihao Zhang, Baoqing Zhang, Yifei Zhang, Yiming Wang, Patrick Hays

Nat Commun· May 2025

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Hot Electron Engineering in Layered Heterojunctions for Efficient Infrared Detection.
Pushkar Dasika, Patrick Hays, Suchithra Puliyassery, Kenji Watanabe, Takashi Taniguchi

ACS Nano· April 2025

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Metallic 2D Janus SNbSe layers driven by a structural phase change.
Cheng-Lun Wu, Mohammad Y Sayyad, Renee E Sailus, Dibyendu Dey, Jing Xie, Patrick Hays

Nanoscale· March 2025

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Valley-Hybridized Gate-Tunable 1D Exciton Confinement in MoSe.
Maximilian Heithoff, Álvaro Moreno, Iacopo Torre, Matthew S G Feuer, Carola M Purser, Patrick Hays

ACS Nano· November 2024

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Simultaneously Enhancing Brightness and Purity of WSe Single Photon Emitter Using High-Aspect-Ratio Nanopillar Array on Metal.
Mayank Chhaperwal, Himanshu Madhukar Tongale, Patrick Hays, Kenji Watanabe, Takashi Taniguchi

Nano Lett· October 2024

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Nature of Long-Lived Moiré Interlayer Excitons in Electrically Tunable MoS/MoSe Heterobilayers.
Evgeny M Alexeev, Carola M Purser, Carmem M Gilardoni, James Kerfoot, Hao Chen, Patrick Hays

Nano Lett· September 2024

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Correlated insulator of excitons in WSe/WS moiré superlattices.
Richen Xiong, Jacob H Nie, Samuel L Brantly, Patrick Hays, Renee Sailus

Science· May 2023

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Characterization and differentiation of cyclopropylfentanyl from E-crotonylfentanyl, Z-crotonylfentanyl, and 3-butenylfentanyl.
Jennifer R Mallette, John F Casale, Patrick A Hays

Sci Justice· January 2019

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Isolation and characterization of a newly identified impurity in methamphetamine synthesized via reductive amination of 1-phenyl-2-propanone (P2P) made from phenylacetic acid/lead (II) acetate.
Steven G Toske, Jennifer B McConnell, Jaclyn L Brown, Jennifer M Tuten, Erin E Miller, Patrick A Hays

Drug Test Anal· March 2017

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Characterization and origin of the 'B' and 'C' compounds in the acid/neutral forensic signatures of heroin - products from the acylation of porphyroxine and subsequent hydrolysis.
John F Casale, Ellen S Casale, Steven G Toske, Patrick A Hays, Sini Panicker

Drug Test Anal· March 2017

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Uncertainty measurement for automated macro program-processed quantitative proton NMR spectra.
Patrick A Hays, Torsten Schoenberger

Anal Bioanal Chem· November 2014

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A processing method enabling the use of peak height for accurate and precise proton NMR quantitation.
Patrick A Hays, Robert A Thompson

Magn Reson Chem· October 2009

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Chlorinated opium alkaloid derivatives produced by the use of aqueous sodium hypochlorite during the clandestine manufacture of heroin.
John F Casale, Steven G Toske, Patrick A Hays

J Forensic Sci· March 2009

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Spectrum of infection and risk factors for human monkeypox, United States, 2003.
Mary G Reynolds, Whitni B Davidson, Aaron T Curns, Craig S Conover, Gregory Huhn, Patrick L Hays

Emerg Infect Dis· September 2007

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Four new illicit cocaine impurities from the oxidation of crude cocaine base: formation and characterization of the diastereomeric 2,3-dihydroxy-3-phenylpropionylecgonine methyl esters from cis- and trans-cinnamoylcocaine.
John F Casale, Patrick A Hays, Steven G Toske, Arthur L Berrier

J Forensic Sci· July 2007

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Neutral heroin impurities from tetrahydrobenzylisoquinoline alkaloids.
Steven G Toske, Samuel D Cooper, David R Morello, Patrick A Hays, John F Casale

J Forensic Sci· March 2006

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Analysis of carbohydrates in seized heroin using capillary electrophoresis.
Ira Lurie, Patrick Hays, Ann Valentino

J Forensic Sci· January 2006

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Proton nuclear magnetic resonance spectroscopy (NMR) methods for determining the purity of reference drug standards and illicit forensic drug seizures.
Patrick A Hays

J Forensic Sci· November 2005

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Capillary electrophoresis analysis of a wide variety of seized drugs using the same capillary with dynamic coatings.
Ira S Lurie, Patrick A Hays, Kimberly Parker

Electrophoresis· June 2004

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Use of dynamically coated capillaries for the determination of heroin, basic impurities and adulterants with capillary electrophoresis.
Ira S Lurie, Patrick A Hays, Agnes E Garcia, Sini Panicker

J Chromatogr A· April 2004

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A conversation with Patrick G. Hays, MHA, FACHE.
Patrick G Hays

J Health Adm Educ· April 2003

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Use of dynamically coated capillaries with added cyclodextrins for the analysis of opium using capillary electrophoresis.
Ira S Lurie, Sini Panicker, Patrick A Hays, Agnes D Garcia, Bryan L Geer

J Chromatogr A· January 2003

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