Patrick Johnson


Professor [M S E]



528 Bissell Rd
Ames, IA 500111096


2220BG Hoover Hall
528 Bissell Road
Ames IA 50012


1.     Ferreira Jr, J. M., Trindade, G.F., Simonelli, G., de Morais Pires, C.A., Morais da Silva, A.C., Rossi, J.L., dos Santos, L.C.L, Johnson, P.A., X-ray induced degradation during XPS analysis of dicarboxylic acid powders, Applied Surface Science, 656, 159703, (2024).

2.     Wahab, H., Heil, J., Tyrrell, A.S., Muller, T., Ackerman, J., Kotthoff, L., Johnson, P.A., Optimization of structural and electrical properties of graphene-based TiO2 thin film device using Bayesian machine-learning approach, Ceramics International, 50(6), 9114-9124, (2024).

3.     Zanjanijam, A.R., Wang, X., Ramezani, M., Holberg, S., Johnson, P.A. Phenolic resin/coal char composites: Curing kinetics and thermal/mechanical performance. Polymer, 281, 126103, (2023).

4.     Wang, X., Zanjanijam, A.R., Holberg, S., Thomas, H.C., Johnson, P.A. Coal char as an economical filler for phenolic composites. Composites Part B: Engineering. 264, 110923 (2023).

5.     Antoine, D.; Mohammadi, M.; McDermott, C. E.; Walsh, E.; Johnson, P. A.; Wawrousek, K.E.; Wall, J.G. Isolation of SARS-CoV-2-inhibiting recombinant antibody fragments and investigation of their binding to variant spike proteins. Frontiers in Nanotechnology (2022).

6.     Mohammadi, M.; Antoine, D.; Vitt, M.; Dickie, J. M.; Jyoti, S. S.; Wall, J. G.; Johnson, P. A.; Wawrousek, K. E. A fast, ultrasensitive SERS immunoassay to detect SARS-CoV-2 in saliva. Analytica Chimica Acta., 1229, 340290 (2022).

7.     Antoine, D.; Mohammadi, M.; Vitt, M.; Dickie, J. M.; Jyoti, S. S.; Tilbury, M. A.; Johnson, P. A.; Wawrousek, K.E.; Wall, J.G. Rapid, Point-of-Care scFv-SERS Assay for Femtogram Level Detection of SARS-CoV-2. ACS sensors. 2022, 7 (3), 866-873.

8.     Wang, X.; Holberg, S.; Ogunsakin, O. R.; Rainbolt, C.; Hawki, J.; Johnson, P. A. Hydroxyethylated Coal Extract as Polyols for Two-Component Polyurethane Coatings. ACS Applied Polymer Materials. 2022.

9.     Ogunsakin, O. R.; Holberg, S.; Wang, X.; Goroncy, A.; Adams, J.; Johnson, P. Acid demineralization effect on the sonication-assisted solvent extraction of vitrinite coal of the Powder River Basin. Fuel. 2022, 308, 121989.

10.  Kotthoff, L.; Dey, S.; Heil, J.; Jain, V.; Muller, T.; Tyrrell, A.; Wahab, H.; Johnson, P. Optimizing Laser-Induced Graphene Production. In PAIS 2022, IOS Press, 2022; pp 31-44.

11.  Kotthoff, L., Dey, S., Jain, V., Tyrrell, A., Wahab, H., Johnson, P. A., Modeling and Optimizing Laser-Induced Graphene, OpenReview NeurIPS 2021 Datasets and Benchmark Track (Round 1) (2021)

12.  Holberg S, Wang X, Schaffers W, Bell D, Adams J, Johnson PA. Coal-derived, solid resins as economic raw materials for coatings. Journal of Coatings Technology and Research. 2021; 18(3):921-934.

13.  Leandro, A. P. M.; Seas, M. A.; Vap, K.; Tyrrell, A. S.; Jain, V.; Wahab, H.; Johnson, P. A. Evolution of structural and electrical properties in coal-derived graphene oxide nanomaterials during high-temperature annealing. Diamond and Related Materials. 2021, 112, 108244.

14.  Gunderson, T. J.; Holberg, S.; Bassham, S. T.; Wang, X.; Downey, M. R.; Adams, J. J.; Khambhati, D. P.; Bell, D. A.; Ackerman, J. F.; Johnson, P. A. Polyurethanes derived from coal extract. Journal of Applied Polymer Science. 2020, 137 (23), 48776.

15.  Wahab, H.; Jain, V.; Tyrrell, A. S.; Seas, M. A.; Kotthoff, L.; Johnson, P. A. Machine-learning-assisted fabrication: Bayesian optimization of laser-induced graphene patterning using in-situ Raman analysis. Carbon. 2020, 167, 609-619.

16.  Neng, J., Li, Y., Driscoll, A. J., Wilson, W. C., & Johnson, P. A. (2018). Detection of Multiple Pathogens in Serum Using Silica-Encapsulated Nanotags in a Surface-Enhanced Raman Scattering-Based Immunoassay. Journal of Agricultural and Food Chemistry, 66(22), 5707–5712.

17.  Driscoll, A. J., & Johnson, P. A. (2018). Numerical modeling of analyte diffusion and adsorption behavior in microparticle and nanoparticle based biosensors. Chemical Engineering Science, 184, 141–148.

18.  Park, H. J., Driscoll, A. J., & Johnson, P. A. (2018). The development and evaluation of beta-glucosidase immobilized magnetic nanoparticles as recoverable biocatalysts. Biochemical Engineering Journal, 133, 66–73.

19.  Guo, F., He, J., Johnson, P. A., & Aryana, S. A. (2017). Stabilization of CO2 foam using by-product fly ash and recyclable iron oxide nanoparticles to improve carbon utilization in EOR processes. Sustainable Energy & Fuels, 1(4), 814–822.

20.  Neng, J., Harpster, M. H., Wilson, W. C., & Johnson, P. A. (2013). Surface-enhanced Raman scattering (SERS) detection of multiple viral antigens using magnetic capture of SERS-active nanoparticles. Biosensors & Bioelectronics, 41, 316–321.

21.  Driscoll, A. J., Harpster, M. H., & Johnson, P. A. (2013). The development of surface-enhanced Raman scattering as a detection modality for portable in vitro diagnostics: progress and challenges. Physical Chemistry Chemical Physics, 15(47), 20415–20433.

22.  Zhang, H., Harpster, M. H., Wilson, W. C., & Johnson, P. A. (2012). Surface-Enhanced Raman Scattering Detection of DNAs Derived from Virus Genomes Using Au-Coated Paramagnetic Nanoparticles. Langmuir, 28(8), 4030–4037.

23.  Park, H. J., McConnell, J. T., Boddohi, S., Kipper, M. J., & Johnson, P. A. (2011). Synthesis and characterization of enzyme-magnetic nanoparticle complexes: effect of size on activity and recovery. Colloids and Surfaces B-Biointerfaces, 83(2), 198–203.

24.  Zhang, H., Harpster, M. H., Park, H. J., & Johnson, P. A. (2011). Surface-Enhanced Raman Scattering Detection of DNA Derived from the West Nile Virus Genome Using Magnetic Capture of Raman-Active Gold Nanoparticles. Analytical Chemistry, 83(1), 254–260.

25.  Johnson, P. A., Luk, A., Demtchouk, A., Pate, H., Sung, H.-J., Treiser, M. D., … Moghe, P. V. (2010). 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. Journal of Biomedical Materials Research Part A, 93A(2), 505–514.

26.  Boddohi, S., Almodovar, J., Zhang, H., Johnson, P. A., & Kipper, M. J. (2010). Layer-by-layer assembly of polysaccharide-based nanostructured surfaces containing polyelectrolyte complex nanoparticles. Colloids and Surfaces B-Biointerfaces, 77(1), 60–68.

27.  Luo, H., Jin, S., Fallgren, P. H., Colberg, P., & Johnson, P. A. (2010). Prevention of iron passivation and enhancement of nitrate reduction by electron supplementation. Chemical Engineering Journal, 160(1), 185–189.

28.  Neng, J., Harpster, M. H., Zhang, H., Mecham, J. O., Wilson, W. C., & Johnson, P. A. (2010). A versatile SERS-based immunoassay for immunoglobulin detection using antigen-coated gold nanoparticles and malachite green-conjugated protein A/G. Biosensors & Bioelectronics, 26(3), 1009–1015.

29.  Luo, H., Jin, S., Fallgren, P. H., Park, H. J., & Johnson, P. A. (2010). A novel laccase-catalyzed cathode for microbial fuel cells. Chemical Engineering Journal, 165(2), 524–528.

30.  Harpster, M. H., Zhang, H., Sankara-Warrier, A. K., Ray, B. H., Ward, T. R., Kollmar, J. P., … Johnson, P. A. (2009). SERS detection of indirect viral DNA capture using colloidal gold and methylene blue as a Raman label. Biosensors & Bioelectronics, 25(4), 674–681.

31.  Boddohi, S., Moore, N., Johnson, P. A., & Kipper, M. J. (2009). Polysaccharide-Based Polyelectrolyte Complex Nanoparticles from Chitosan, Heparin, and Hyaluronan. Biomacromolecules, 10(6), 1402–1409.

32.  Shen, Y., Zhan, Y., Tang, J., Xu, P., Johnson, P. A., Radosz, M., … Murdoch, W. J. (2008). Multifunctioning pH-Responsive Nanoparticles from Hierarchical Self-Assembly of Polymer Brush for Cancer Drug Delivery. AICHE Journal, 54(11), 2979–2989.

33.  Wang, N. a., Dong, A., Tang, H., Van, K., Johnson, P. A., Murdoch, W. J., … Shen, Y. (2007). Synthesis of degradable functional poly(ethylene glycol) analogs as versatile drug delivery carriers. Macromolecular Bioscience, 7(11), 1187–1198.

34.  Liu, E. r., Treiser, M. D., Johnson, P. A., Patel, P., Rege, A., Kohn, J., & Moghe, P. V. (2007). Quantitative biorelevant profiling of material microstructure within 3D porous scaffolds via multiphoton fluorescence microscopy. Journal of Biomedical Materials Research Part B-Applied Biomaterials, 82B(2), 284–297.

35.  Bae, Y. H., Johnson, P. A., Florek, C. A., Kohn, J., & Moghe, P. V. Minute changes in composition of polymer substrates produce amplified differences in cell adhesion, and motility via optimal ligand conditioning. Acta Biomaterialia. 2006, 2(5), 473–482.

36.  Johnson, P. A.; Levicky, R. X-ray photoelectron spectroscopy and differential capacitance study of thiol-functional polysiloxane films on gold supports. Langmuir 2004, 20 (22), 9621-9627.

37.  Johnson, P. A.; Gaspar, M. A.; Levicky, R. Polymer-anchored DNA gene monolayers. Journal of the American Chemical Society. 2004, 126 (32), 9910-9911.

38.  Johnson, P. A.; Levicky, R. Polymercaptosiloxane anchor films for robust immobilization of biomolecules to gold supports. Langmuir. 2003, 19 (24), 10288-10294.

39.  Pancrazio, J. J.; Johnson, P. A.; Lynch III, C. A major role for calcium-dependent potassium current in action potential repolarization in adrenal chromaffin cells. Brain research. 1994, 668 (1-2), 246-25124).

Primary Strategic Research Area

Advanced Materials & Manufacturing