Publications
* Indicates undergraduate author in the Lazenby lab, † indicates equal contribution.
Publications AT Florida State University:
36. Applications of nanopipettes in scanning ion conductance microscopy for high spatial resolution topographic imaging and sensing in single cells. Y. Muhammed, A. B. Ramirez and R. A. Lazenby, ACS Meas. Sci. Au. 2026, just accepted, https://pubs.acs.org/doi/10.1021/acsmeasuresciau.5c00192.
35. Aptamer-based scanning electrochemical microscopy (AB-SECM) for specific and localized detection of analyte concentration. D. Sen and R. A. Lazenby, ACS Electrochem. 2026, 2, 2, 274–285.
34. Amorphous zero-dimensional organic metal halide hybrid scintillators with high light yield and fast response. T. F. Manny, S. Moslemi, M. S. Islam, D. Sen, R. Das, S. Fehroza, J. S. R. V. Winfred, R. A. Lazenby, M. Snoeyink, D. R. Schaart, B. Ma, Angew. Chem. Int. Ed. 2026, 65, 5, e25242.
33. Interrogation of small molecules to surface-bound aptamer binding kinetics with electrochemical aptamer-based sensors using intermittent pulse amperometry. S. W. Abeykoon, W. N. Dikella, M. Santos-Cancel, R. A. Lazenby, and Ryan J. White, Anal. Chem. 2025, 97, 46, 25391–25397.
32. The heterogeneity in the response of A549 cells to toyocamycin observed using hopping scanning ion conductance microscopy. Y. Muhammed, M. De Sabatino,* and R. A. Lazenby, J. Phys. Chem. B. 2025, 129, 20, 4904–4916.
31. Fabricating reproducible, reversible, and high signal change aptasensors with gold-modified nanopipettes. A. B. Ramirez and R. A. Lazenby, ACS Appl. Mater. Interfaces, 2025, 17, 17, 24877–24886.
30. Fabrication and characterization of a tunable microelectrode array probe for
simultaneous multiplexed electrochemical detection. D. Sen, N. Volya,* Y. Muhammed and R. A. Lazenby, Anal. Chem. 2025, 97, 14, 7702–7710.
29. Electrochemical impedance analysis of Ti3C2Tx MXene for pseudocapacitive charge storage. N. Anjum, A. Al Noman, Md M. Rahman , D. Sen, R. A. Lazenby, and O. I. Okoli, J. Compos. Sci. 2025, 9, 139.
28. Controlling gold morphology using electrodeposition for the preparation of electrochemical aptamer-based sensors. A. J. Ritz, O. Stuehr,* D. Comer,* and R. A. Lazenby, ACS Appl. Bio Mater., 2024, 7, 1925–1935.
27. Scanning ion conductance microscopy revealed cisplatin-induced morphological changes related to apoptosis in single adenocarcinoma cells. Y. Muhammed and R. A. Lazenby, Anal. Methods, 2024, 16, 503–514.
26. Electrocatalytic activity and surface oxide reconstruction of bimetallic iron-cobalt nanocarbide electrocatalysts for the oxygen evolution reaction. A. J. Ritz,† I. A. Bertini,† E. T. Nguyen, G. F. Strouse and R. A. Lazenby, RSC Advan., 2023, 13, 33413–33423.
25. Electrochemical biosensor arrays for multiple analyte detection. D. Sen and R. A. Lazenby, Anal. Sens. 2023, e202300047. (Also appears in Analysis & Sensing Readers’ Choice 2025 https://chemistry-europe.onlinelibrary.wiley.com/doi/toc/10.1002/(ISSN)2629-2742.ReadersChoice-ANSE-2025).
24. Selective aptamer modification of Au surfaces in a microelectrode sensor array for simultaneous detection of multiple analytes. D. Sen and R. A. Lazenby, Anal. Chem. 2023, 95, 17, 6828–6835.
23. Design and synthesis of Kekulè and non-Kekulè diradicaloids via radical peri-annulation strategy: the power of seven Clar’s sextets. F. Kuriakose, M. Commodore, C. Hu, C. J. Fabiano, D. Sen, R. R. Li, S. Bisht, Ö. Üngör, X. Lin, G. F. Strouse, A. E. DePrince, R. A. Lazenby, F. Mentink-Vigier, M. Shatruk and I. V. Alabugin, J. Am. Chem. Soc. 2022, 144, 51, 23448–23464.
22. A single source, scalable route for direct isolation of earth abundant nano-metal carbide water splitting electrocatalysts. E. T. Nguyen, I. A. Bertini, A. J. Ritz, R. A. Lazenby, K. Mao, J. R. McBride, A. V. Mattia, J. E. Kuszynski, S. F. Wenzel,* S. D. Bennett and G. F. Strouse, Inorg. Chem., 2022, 61, 13836–13845.
21. Scanning electrochemical cell microscopy in Encyclopedia of Electrochemistry, Wiley, A. J. Ritz, N. J. Jones and R. A. Lazenby, Accepted.
20. Creation of an unexpected plane of enhanced covalency in cerium(III) and berkelium(III) terpyridyl complexes. A. N. Gaiser, C. Celis-Barros, F. D. White, M. J. Beltran-Leiva, J. M. Sperling, S. R. Salpage, T. N. Poe, D. Gomez Martinez, T. Jian, N. J. Wolford, N. J. Jones, A. J. Ritz, R. A. Lazenby, J. K. Gibson, R. E. Baumbach, D. Páez-Hernández, M. L. Neidig and T. E. Albrecht-Schönzart, Nat. Commun. 2021, 12, 7230. (Featured on FSU News and Chemistry World).
19. Repetitive drug releases from light-activatable micron-sized liposomes. Z. Yuan, S. Das, R. A. Lazenby, R. J. White and Y. C. Park, Colloids Surf., A, 2021, 625, 126778.
18. Effect of laser irradiation on reversibility and drug release of light-activatable drug-encapsulated liposomes. S. Das, R. A. Lazenby, Z. Yuan, R. J. White and Y. C. Park, Langmuir, 2020, 36, 3573–3582 .
17. Electrochemistry of controlled-diameter carbon-nanotube fibers at the cross section and sidewall. P. Gupta, R. A. Lazenby, C. Rahm, W. R. Heineman, E. Buschbeck, R. J. White and N. T. Alvarez, ACS Appl. Energy Mater., 2019, 2, 8757–8766.
16. Electrochromic, closed-bipolar electrodes employing aptamer-based recognition for direct colorimetric sensing visualization. X. Zhang, R. A. Lazenby, Y. Wu and R. J. White, Anal. Chem., 2019, 91, 11467–11473.
Publications BEFORE Independent position:
15. Advances and perspectives in chemical imaging in cellular environments using electrochemical methods. R. A. Lazenby and R. J. White, Chemosensors, 2018, 6, 24.
14. Rapid two-millisecond interrogation of electrochemical, aptamer-based sensor response using intermittent pulse amperometry. M. Santos-Cancel, R. A. Lazenby and R. J. White, ACS Sens., 2018, 3, 1203–1209.
13. Quantitative framework for stochastic nanopore sensors using multiple channels. R. A. Lazenby, F. C. Macazo, R. F. Wormsbecher and R. J. White, Anal. Chem., 2018, 90, 903–911.
12. Comparison of fast electron transfer kinetics at platinum, gold, glassy carbon and diamond electrodes using Fourier-transformed AC voltammetry and scanning electrochemical microscopy. S.-Y. Tan, R. A. Lazenby, K. Bano, J. Zhang, A. Bond, J. V. Macpherson and P. R. Unwin, Phys. Chem. Chem. Phys., 2017, 19, 8726–8734.
11. Electrochemical oxidation of dihydronicotinamide adenine dinucleotide (NADH): comparison of highly oriented pyrolytic graphite (HOPG) and polycrystalline boron-doped diamond (pBDD) electrodes. F. M. Maddar, R. A. Lazenby, A. N. Patel, and P. R. Unwin, Phys. Chem. Chem. Phys., 2016, 18, 26404–26411.
10. Electrodeposition of nickel hydroxide nanoparticles on carbon nanotube electrodes: correlation of particle crystallography with electrocatalytic properties. S. Pei. E, D. Liu, R. A. Lazenby, J. Sloan, M. Vidotti, P.R. Unwin and J. V. Macpherson, J. Phys. Chem. C, 2016, 120, 16059–16068.
9. Characterization of nanopipettes. D. Perry, D. Momotenko, R. A. Lazenby, M. Kang and P.R. Unwin, Anal. Chem., 2016, 88, 5523–5530.
8. Versatile polymer-free graphene transfer method and applications. G. Zhang, A. G. Güell, P. M. Kirkman, R. A. Lazenby, T. S. Miller and P.R. Unwin, ACS Appl. Mater. Interfaces, 2016, 8, 8008–8016. (Featured on the cover of ACS Applied Materials and Interfaces).
7. Time-resolved detection and analysis of single nanoparticle electrocatalytic impacts. M. Kang, D. Perry, Y.-R. Kim, A. Colburn, R. A. Lazenby, and P. R. Unwin, J. Am. Chem. Soc., 2015, 137, 10902–10905.
6. Hopping intermittent contact-scanning electrochemical microscopy (HIC-SECM) as a new local dissolution kinetic probe: application to salicylic acid dissolution in aqueous solution. A. R. Perry,† R. A. Lazenby,† M. Adobes-Vidal, M. Peruffo, K. McKelvey, M. E. Snowden and P. R. Unwin, CrystEngComm, 2015, 17, 7835–7843. (Featured on the cover of CrystEngComm, † equal contribution).
5. Quad-barrel multifunctional electrochemical and ion conductance probe for voltammetric analysis and imaging. B. P. Nadappuram, K. McKelvey, J. C. Byers, A. G. Güell, A. W. Colburn, R. A. Lazenby and P. R. Unwin, Anal. Chem., 2015, 87, 3566–3573.
4. Nucleation, aggregative growth and detachment of metal nanoparticles during electrodeposition at electrode surfaces. S. C. S. Lai, R. A. Lazenby, P. M. Kirkman and Patrick R. Unwin, Chem. Sci., 2015, 6, 1126–1138.
3. Nanoscale intermittent contact-scanning electrochemical microscopy. R. A. Lazenby, K. McKelvey, M. Peruffo, M. Baghdadi and P. R. Unwin, J. Solid State Electrochem., 2013, 17, 2979–2987.
2. Hopping intermittent contact-scanning electrochemical microscopy (HIC-SECM): visualizing interfacial reactions and fluxes from surfaces to bulk solution. R. A. Lazenby, K. McKelvey and P. R. Unwin, Anal. Chem., 2013, 85, 2937–2944.
1. Quantitative localized proton-promoted dissolution kinetics of calcite using scanning electrochemical microscopy (SECM). C-A. McGeouch, M. Peruffo, M. A. Edwards, L. Dexter, R. A. Lazenby, M. M. Mbogoro, K. McKelvey and P. R. Unwin, J. Phys. Chem. C, 2012, 116, 14892–14899.
Patent Applications
Trimetallic iron-cobalt-nickel nanocarbide electrocatalysts for the oxygen evolution reaction. R. A. Lazenby, G. F. Strouse, A. J. Ritz, I. A. Bertini. US patent app. No. 63/492,089, Filing date 03/24/2023. Application No. 18/613,223, Filing date 03/22/2024. Publication of US-2024-0318334-A1 on 09/26/2024.
Bimetallic iron-nickel nanocarbide electrocatalysts for the oxygen evolution reaction. R. A. Lazenby, G. F. Strouse, A. J. Ritz, I. A. Bertini. US patent app. No. 63/492,077, Filing date 03/24/2023. Application No. 18/613,207, Filing date 03/22/2024. Publication of US-2024-0318333-A1 on 09/26/2024.
Bimetallic iron-cobalt nanocarbide electrocatalysts for the oxygen evolution reaction. R. A. Lazenby, G. F. Strouse, A. J. Ritz, I. A. Bertini. US patent app. No. 18/433,570 (63/444,133), Filing date 02/08/2023. Publication of US-2024-0263328-A1 08/08/2024.
Electrochemical waveform for calibration-free and basal level sensing with aptasensors. R. J. White, S. Mize, R. A. Lazenby, T. Ilina. US patent app. No. US17/426,365, Filing date 02/04/2020. Publication of US-2022-0095961-A1 03/31/2022.
Group Theses
Advances in single cell studies using scanning ion conductance microscopy and electrochemical probes. Muhammed, Yusuf (2025).
Aptamer-based electrochemical biosensor array for simultaneous localized detection of multiple analytes. Sen, Debashis (2025).
Advances in nanomaterial engineering for electrochemical biosensing and electrocatalysis applications. Ritz, Amanda J. (2024).
Developments and applications of electrochemical microscopy. Lazenby, Robert A. (2014).