Ebrahimi lab members are indicated in bold; # Equal contribution; corresponding author(s) is highlighted with *.


  1. K. Zhou #, C. Zhou #, A. Sapre, J. Henry Pavlock, A. Weaver, R. Muralidharan, J. Noble, T. Chung, J. Kovac, Z. Liu*, A. Ebrahimi*, Dynamic Laser Speckle Imaging meets Machine Learning to enable Rapid Antibacterial Susceptibility Testing (DyRAST), ACS Sensors (2020) accepted; Penn State News
  2. A. Bolotsky, R. Muralidharan, D. Butler, K. Root, W. Murray, Z. Liu, and A. Ebrahimi*, Organic Redox-Active Crystalline Layers for Reagent-free Electrochemical Antibiotic Susceptibility Testing (ORACLE-AST), Biosensors and Bioelectronics (2020), accepted
  3. Y. Lei #, D. Butler #, M. Lucking, F. Zhang, T. Xia, K. Fujisawa, T. Granzier-Nakajima, R. Cruz-Silva, M. Endo, H. Terrones, M. Terrones*, and A. Ebrahimi*, Single-Atom Doping of MoS2 with Manganese Enables Ultrasensitive Detection of Dopamine: Experimental and Computational Approach, Science Advances (2020) 6:eabc4250; Penn State News; NSF Research News
  4. R. Muralidharan, V. Chandrashekhar, D. Butler, and A. Ebrahimi*, A Smartphone-Interfaced, Flexible Electrochemical Biosensor based on Graphene Ink for Selective Detection of Dopamine, IEEE Sensors (2020) – in press
  5. A. Bolotsky #, D. Butler #, C. Dong, K. Gerace, N. Glavin, C. Muratore, J. Robinson, and A. Ebrahimi*, Two-Dimensional Materials in Biosensing and Healthcare: from In Vitro Diagnostics to Optogenetics and Beyond, ACS Nano 13 (2019) 9781-9810 (Invited Review; ACS Editors’ Choice)
  6. A. Ebrahimi*, K. Zhang, C. Dong, S. Subramanian, D. Butler, A. Bolotsky, L. Goodnight, Y. Cheng, J. A. Robinson*, FeSx-Graphene Heterostructures: Nanofabrication-Compatible Catalysts for Ultra-Sensitive Electrochemical Detection of Hydrogen Peroxide, Sensors and Actuators B: Chemical 285 (2019) 631-638
  7. D. Butler, N. Goel, L. Goodnight, S. Tadigadapa, and A. Ebrahimi*, Detection of Bacterial Metabolism in Lag-Phase using Impedance Spectroscopy of Agar-integrated 3D Microelectrodes, Biosensors and Bioelectronics 129 (2019) 269-276 DOI: 10.1016/j.bios.2018.09.057
  8. A. Ebrahimi, L. N. Csonka, and M. A. Alam, Analyzing Thermal Stability of Cell Membrane of Salmonella Using Time-Multiplexed Impedance Sensing, Biophysical Journal 114 (2018) 609–618, (Penn State News)

    Before Penn State:
  9. A. Ebrahimi and M. A. Alam, Droplet-based non-Faradaic impedance sensors for Assessment of Susceptibility of Escherichia coli to Ampicillin in 60 minutes, Biomedical Microdevices 19 (2017) 27.
  10. A. Ebrahimi and M. A. Alam, Evaporation-induced stimulation of bacterial osmoregulation for electrical assessment of cell viability, Proceedings of the National Academy of Sciences 113 (2016) 7059 (NSF Science 360 News).
  11. P. Dak*, A. Ebrahimi*, V. Swaminathan, C. Duarte-Guevara, R. Bashir, and M. A Alam (*Equal Contribution), Droplet-based Biosensing for Lab-on-a-Chip Open Microfluidics Platforms, Biosensors 6 (2016) 14 (Invited, review paper)
  12. A. Ebrahimi and M. A. Alam, Time-resolved PCA of ‘droplet impedance’ identifies DNA hybridization at nM concentration, Sensors and Actuators: B 215 (2015) 215-224.
  13. P. Dak, A. Ebrahimi, and M. A. Alam, Non-faradaic impedance characterization of an evaporating droplet for microfluidic and biosensing applications, Lab Chip 14 (2014) 2469-2479.
  14.  A. Ebrahimi, P. Dak, E. Salm, S. Dash, S. V. Garimella, R. Bashir, and M. A. Alam, Nanotextured Superhydrophobic Electrodes enable Detection of attomolar-scale DNA concentration within a Droplet by non-Faradaic Impedance Spectroscopy, Lab Chip 13 (2013) 4248-4256 (Research Highlights in Lab on a Chip)
  15. A. Ebrahimi, A. Pirouz, Y. Abdi, S. Azimi, and S. Mohajerzadeh, Selective deposition of CuO/SnO2 sol–gel on porous SiO2 suitable for the fabrication of MEMS-based H2S sensors, Sensors and Actuators B 173 (2012) 802– 810.
  16. A. Ebrahimi, S. Mohajerzadeh, A. Alihosseinzadeh, A. Khodadadi, and Y. Mortazavi, Preferential Oxidation of CO Based on Electro-Thermally Assisted Catalytic Ni/Cu Nanostructures on Si Micro-Grass, ECS Transactions 35 (2011) 37-41.
  17. Y. Abdi, A. Ebrahimi, S. Mohajerzadeh and M. Fathipour, High sensitivity interdigited capacitive sensors using branched tree-like carbon nanotubes on silicon membranes, App. Phys. Lett. 94 (2009) 1735071-3.
  18. A. Ebrahimi, Y. Abdi, S. Mohajerzadeh, and Y. Komijani, Highly Sensitive Capacitive Transducer based on Comb-Like Array of Branched Carbon Nanotubes, Procedia Chemistry (2011) 1159-1162.
  19. S. Paydavosi, A. Ebrahimi, S. Mohajerzadeh, A. H. Tamaddon, N. Izadi, A. Behnam and Y. Abdi, Hydrogenation assisted metal-induced lateral nano-crystallization of amorphous silicon on PET at low temperatures, Thin Solid Films 516 (2008) 7790-7796.
  20. S. Darbari, Y. Abdi, A. Ebrahimi, and S. Mohajerzadeh, Fabrication of silicon based actuators using branched carbon nano-structures, IEEE Sensors 11 (2011) 1535-1540.
  21. M. Kayyalha, J. N. NilchiA. Ebrahimi, and S. Mohajerzadeh, High aspect ratio hydrogenation-assisted lateral etching of (100) silicon substrates, Journal of Micromechanics and Microengineering 21 (2011) 074003.
  22. S. Darbari, Y. Abdi, A. Ebrahimi, N. Doostani, S. Mohajerzadeh, Fabrication and modeling of a novel SAW-like transducer device based on branched carbon nanotubes, ECS Transactions 35 (2011) 131-135.
  23. A. Behnam, F. Karbassian, S. Mohajerzadeh, A. Ebrahimi, and M.D. Robertson, Low-temperature nickel-induced nano-crystallization of silicon on PET by MIC, hydrogenation and mechanical stress, Solid-State Electronics 50 (2006) 1618–1624.


  1. A. Ebrahimi and M. Alam, Droplet-based monitoring of biological samples, USPTO#15269972, 049610/0497

Conferences and talks:

  1. A. Ebrahimi, Impedance-based and Electrochemical Sensors for Label-free and In situ Probing of Bacterial Response to Environmental Stressors, the 15th IEEE NEMS, Virtual, Sep. 2020 (Invited)
  2. D. Butler, C. Sankhe, M. Farell, C. Dong, J. A. Robinson, E. W. Gomez, and A. Ebrahimi, Toward in Situ, Electrochemical Monitoring of Extracellular H2O2 and NO in Cell Cultures Using Graphene Ink and Its Heterostructure with Iron-Sulfide, PRiME (ECS, ECSJ, & KECS Joint Meeting), Virtual, Oct. 2020
  3. A. Bolotsky, R. Muralidharan, K. Zhou, D. Butler, K. Root, A. Ebrahimi, Reagent-Free Electrochemical Monitoring of Bacterial Viability Using Novel Organic Crystals Deposited on Flexible Substrates, PRiME (ECS, ECSJ, & KECS Joint Meeting), Virtual, Oct. 2020
  4. D. Butler, J. Robinson, and A. Ebrahimi, Tailoring Surface Chemistry of Graphene Ink for Highly-Sensitive Electrochemical Detection of Dopamine Down to 50 Picomolar, the 237th Electrochemical Society (ECS) and the 18th International Meeting on Chemical Sensors (IMCS 2020), Montreal, Canada, May. 2020
  5. A. Ebrahimi, Novel Rapid Phenotypic Antimicrobial Susceptibility Testing Methods, Department of Veterinary and Biomedical Sciences, Penn State University, Feb. 2020 (VBSC-H 290, guest speaker)
  6. A. Ebrahimi, TrACE-2D: Time-resolved Analysis of Chemicals using Engineered 2D Materials, CBD S&T Conference, Cincinnati, Ohio, Nov. 2019 (Invited by DTRA)
  7. A. Bolotsky and A. Ebrahimi, Toward Rapid Antibacterial Susceptibility Testing Using Electrochemical Biosensors Based on Organic-Inorganic Catalytic Complexes, the 236th Electrochemical Society (ECS) meeting, Atlanta, GA, Oct. 2019
  8. A. Ebrahimi, Probing Bacterial Response to Stress Using Electronic and Electrochemical Sensors, Sensors Summit, San Diego, CA, Dec. 2018 (Invited)
  9. A. Ebrahimi, Materials and Devices for Healthcare applications, Department of Electrical Engineering, Penn State University, Nov. 2018 (EE396, guest speaker)
  10. A. Ebrahimi, On-chip Microbiology and Beyond, Kansas State University, October 2018 (Invited)
  11. C. Dong, D. Deng, K. Zhang, R. Muralidharan, J. Robinson, and A. Ebrahimi, Highly Sensitive Detection of Ascorbic Acid using Electronic Devices based on 2D MoS2, BMES 2018 Annual Meeting, Atlanta, Oct. 2018
  12. R. Muralidharan, J. Noble, C. Zhou, Z. Liu, and A. Ebrahimi, Point-of-Care Detection of Bacterial Viability using Dynamic Laser Speckle Imaging, BMES 2018 Annual Meeting,  Atlanta, Oct. 2018
  13. A. Ebrahimi, Bacterial Cells under Electrochemical Probes, Materials Research Institute Millennium Café Seminar Series, Penn State University, University Park, PA, July 2018 (Invited)
  14. N. Goel, C. Dong, J.A. Robinson, S. Tadigadapa, and A. Ebrahimi, Gel‐integrated impedimetric biosensors based on Au‐Ni microelectrodes enable in situ detection of E. coli metabolism, 28th Anniversary World Congress on Biosensors, Miami, FL, June 2018
  15. A. Ebrahimi, Materials as Artificial Enzymes to study Cellular Biophysics, The Center for 2-Dimensional & Layered Materials, Penn State University, University Park, April 2018 (Invited)
  16. A. Ebrahimi, Electrochemical Biosensors based on Engineered 2D Materials as Artificial Enzymes, Industry Exchange Day, Penn State University, University Park, May 2018 (Invited; selected as one of the top five multi-college research presentations)
  17. A. Ebrahimi, Materials and Devices for Healthcare and Environmental Applications, Department of Biomedical Engineering (Colloquium), Penn State University, University Park, February 2018 (Invited)
  18. A. Ebrahimi, On-chip Analysis of Bacterial Cells and Beyond, Department of Engineering Science and Mechanics (ESC433), Penn State University, University Park, November 2017 (Invited)
  19. A. Ebrahimi, Point-of-Care Devices for Healthcare Research: On-chip Microbiology Analysis, Department of Electrical Engineering (Colloquium), Penn State University, University Park, September 2017 (Invited)
  20. A. Ebrahimi, Rapid diagnostics: When Electrochemical Nanobiosensors probe Pathogens, New York University, New York, March 2017 (Invited)
  21. A. Ebrahimi and M. A. Alam, Impedance spectroscopy of micro-Droplets reveals activation of Bacterial Mechanosensitive Channels in Hypotonic Solutions, American Physical Society (APS) March Meeting, Baltimore, USA, March 2016.
  22. A. Ebrahimi, Droplet-based impedance spectroscopy for highly sensitive biosensing within minutes, Rising Stars in EECS, MIT, Cambridge, MA, November 2015 (Invited).
  23. A. Ebrahimi and M. A. Alam, Incubation-free detection of bacteria cells by using droplet-based impedance sensing, Device Research Conference (DRC), Columbus, Ohio, USA, June 2015.
  24. A. Ebrahimi and M. A. Alam, Evaporation-Enhanced Impedance Sensing for Highly-Sensitive Differentiation of dsDNA from ssDNA, Device Research Conference (DRC), Notre Dame, Indiana, USA, June 2013.
  25. A. Ebrahimi, S. Mohajerzadeh, A. Alihosseinzadeh, A. Ali Khodadadi, and Y. Mortazavi, Fabrication of novel electric-field induced catalytic nanostructures on Si micro grasses suitable for CO detection and combustion, 219th ECS meeting, Montreal, Canada, May 2011.
  26. A. Ebrahimi, Y. Abdi, S. Mohajerzadeh, and S. Paydavosi, Interdigital Capacitive Array of Tree-like Carbon Nanotubes on Silicon-based Membranes for Sensor Applications, MRS Proceedings 1179 (2009) 1179-BB06-07.
  27. A. Ebrahimi, Y. Abdi, S. Mohajerzadeh and Y. Komijani, Highly Sensitive Capacitive Transducer Based on Comb-Like Array of Branched Carbon Nanotubes, EurosensorsXXIII, Switzerland, September 2009.
  28. A. Ebrahimi, Y. Abdi, S. Mohajerzadeh and S. Paydavosi, Interdigital Capacitive Array of Tree-like Carbon Nanotubes on Silicon-based Membranes for Sensor Applications, MRS conference (Spring meeting), San Francisco, CA, April 2009.
  29. A. Ebrahimi, S. Paydavosi, S. Mohajerzadeh, A. Behnam, Y. Abdi, and M.D. Robertson, Hydrogenation assisted metal-induced lateral nano-crystallization of amorphous silicon on PET at low temperatures, EMRS Conference, France, June 2006.
  30. A. Pirouz, A. Ebrahimi, F. Karbassian, and S. Mohajerzadeh, Photoluminescence from SiO2 nanostructures prepared by a sequential RIE process, Nanotechnology Materials and Devices Conference (NMDC-IEEE), Jeju, Korea, Oct. 2011.
  31. A. Ebrahimi, H. Miladi, and S. Mohajerzadeh, A Two Level Etch Process for Fabrication of Low Frequency Out-of-Plane Accelerometer, APCOT, Australia, 2010.
  32. S. Darbari, A. Ebrahimi, Y. Abdi, and S. Mohajerzadeh, A novel SAW-like interdigital capacitive transducer based on branched carbon nanotubes, ICNST, China,  2010.