Publications by authors named "Patrick A Johnson"

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Effect of Coal-Derived Graphene Oxide on the Mechanical and Microstructural Characteristics of Concrete.
Iftekhar Dipta, Kam Ng, Jacob Chadwick, Chooi Kim Lau, Hua Yu, Patrick Alfred Johnson

Materials (Basel)· June 2025

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A fast, ultrasensitive SERS immunoassay to detect SARS-CoV-2 in saliva.
Moein Mohammadi, Delphine Antoine, Madison Vitt, Julia Marie Dickie, Sharmin Sultana Jyoti, Patrick A Johnson

Anal Chim Acta· October 2022

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Rapid, Point-of-Care scFv-SERS Assay for Femtogram Level Detection of SARS-CoV-2.
Delphine Antoine, Moein Mohammadi, Madison Vitt, Julia Marie Dickie, Sharmin Sultana Jyoti, Patrick A Johnson

ACS Sens· March 2022

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Detection of Multiple Pathogens in Serum Using Silica-Encapsulated Nanotags in a Surface-Enhanced Raman Scattering-Based Immunoassay.
Jing Neng, Yina Li, Ashley J Driscoll, William C Wilson, Patrick A Johnson

J Agric Food Chem· June 2018

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The development of surface-enhanced Raman scattering as a detection modality for portable in vitro diagnostics: progress and challenges.
Ashley J Driscoll, Mark H Harpster, Patrick A Johnson

Phys Chem Chem Phys· December 2013

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Surface-enhanced Raman scattering (SERS) detection of multiple viral antigens using magnetic capture of SERS-active nanoparticles.
Jing Neng, Mark H Harpster, William C Wilson, Patrick A Johnson

Biosens Bioelectron· March 2013

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Surface-enhanced Raman scattering detection of DNAs derived from virus genomes using Au-coated paramagnetic nanoparticles.
Hao Zhang, Mark H Harpster, William C Wilson, Patrick A Johnson

Langmuir· February 2012

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Synthesis and characterization of enzyme-magnetic nanoparticle complexes: effect of size on activity and recovery.
Hee Joon Park, Joshua T McConnell, Soheil Boddohi, Matt J Kipper, Patrick A Johnson

Colloids Surf B Biointerfaces· April 2011

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Enzyme nanoparticle fabrication: magnetic nanoparticle synthesis and enzyme immobilization.
Patrick A Johnson, Hee Joon Park, Ashley J Driscoll

Methods Mol Biol· January 2011

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Surface-enhanced Raman scattering detection of DNA derived from the west nile virus genome using magnetic capture of Raman-active gold nanoparticles.
Hao Zhang, Mark H Harpster, Hee Joon Park, Patrick A Johnson, William C Wilson

Anal Chem· January 2011

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A versatile SERS-based immunoassay for immunoglobulin detection using antigen-coated gold nanoparticles and malachite green-conjugated protein A/G.
Jing Neng, Mark H Harpster, Hao Zhang, James O Mecham, William C Wilson, Patrick A Johnson

Biosens Bioelectron· November 2010

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Interplay of anionic charge, poly(ethylene glycol), and iodinated tyrosine incorporation within tyrosine-derived polycarbonates: Effects on vascular smooth muscle cell adhesion, proliferation, and motility.
Patrick A Johnson, Arnold Luk, Aleksey Demtchouk, Hiral Patel, Hak-Joon Sung

J Biomed Mater Res A· May 2010

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Layer-by-layer assembly of polysaccharide-based nanostructured surfaces containing polyelectrolyte complex nanoparticles.
Soheil Boddohi, Jorge Almodóvar, Hao Zhang, Patrick A Johnson, Matt J Kipper

Colloids Surf B Biointerfaces· May 2010

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SERS detection of indirect viral DNA capture using colloidal gold and methylene blue as a Raman label.
Mark H Harpster, Hao Zhang, Ajaya K Sankara-Warrier, Bryan H Ray, Timothy R Ward, Patrick A Johnson

Biosens Bioelectron· December 2009

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Polysaccharide-based polyelectrolyte complex nanoparticles from chitosan, heparin, and hyaluronan.
Soheil Boddohi, Nicholas Moore, Patrick A Johnson, Matt J Kipper

Biomacromolecules· June 2009

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Synthesis of degradable functional poly(ethylene glycol) analogs as versatile drug delivery carriers.
Na Wang, Anjie Dong, Huadong Tang, Edward A Van Kirk, Patrick A Johnson

Macromol Biosci· November 2007

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Quantitative biorelevant profiling of material microstructure within 3D porous scaffolds via multiphoton fluorescence microscopy.
Er Liu, Matthew D Treiser, Patrick A Johnson, Parth Patel, Aarti Rege

J Biomed Mater Res B Appl Biomater· August 2007

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Minute changes in composition of polymer substrates produce amplified differences in cell adhesion and motility via optimal ligand conditioning.
Yong Ho Bae, Patrick A Johnson, Charles A Florek, Joachim Kohn, Prabhas V Moghe

Acta Biomater· September 2006

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X-ray photoelectron spectroscopy and differential capacitance study of thiol-functional polysiloxane films on gold supports.
Patrick A Johnson, Rastislav Levicky

Langmuir· October 2004

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Polymer-anchored DNA gene monolayers.
Patrick A Johnson, Mariafrancis A Gaspar, Rastislav Levicky

J Am Chem Soc· August 2004

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