David Ohayon, PhD

Postdoctoral Fellows

Current

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Research Interest

Dr. Ohayon aims to develop a new family of implantable organic electrochemical transistor based sensors for probing brain metabolism. He is particularly interested in microfabrication of electronic devices, micro-patterning of polymers, electrochemical characterization of conjugated polymers and 3D electronics.

Selected Publications

Biofuel powered glucose detection in bodily fluids with an n-type conjugated polymer

D. Ohayon, G. Nikiforidis, A. Savva, A. Guigni, S. Wustoni, T. Palanisamy, X. Chen, IP. Maria, E. Di Fabrizio, PMFJ. Costa, I. McCulloch, S. Inal

Nature Materials, 19, pages456–463, (2020)

 

The Key Role of Side Chain Linkage in Structure Formation and Mixed Conduction of Ethylene Glycol Substituted Polythiophenes

P. Schmode, A. Savva, R. Khal, D. Ohayon, F. Meichsner, O. Dolynchuk, T. Thurn-Albrecht, S. Inal, M. Thelakkat

ACS Appl. Mater. Interfaces, 12, 11, 13029-13039, (2020)

 

High-Performance Organic Electrochemical Transistors Based on Conjugated Polyelectrolyte Copolymers

P. Schmode, D. Ohayon, PM. Reichstein, A. Savva, S. Inal, M. Thelakkat

Chemistry of Materials, 31, 14, 5286-5295, (2019)

 

Solvent Engineering for High‐Performance n‐Type Organic Electrochemical Transistors

A. Savva, D. Ohayon, J. Surgailis, AF. Paterson, TC. Hidalgo, X. Chen, IP. Maria, BD. Paulsen, A. Petty II, J. Rivany, I. McCulloch, S. Inal

Advanced Electronic Materials, 5, 1900249, (2019)

 

Membrane‐Free Detection of Metal Cations with an Organic Electrochemical Transistor

S. Wustoni, C. Combe, D. Ohayon, M. Hassan Akhtar, I. McCulloch, S. Inal

Advanced Functional Materials, 29, 1904403, (2019)

 

The Influence of Water on the Performance of Organic Electrochemical Transistors

A. Savva, C. Cendra, A. Giugni, B. Torre, J. Surgailis, D. Ohayon, A. Giovannitti, I. McCulloch, E. Di Fabrizio, A. Salleo, J. Rivnay, S. Inal

Chemistry of Materials, Online, (2019)

 

Improving the Compatibility of Diketopyrrolopyrrole Semiconducting Polymers for Biological Interfacing by Lysine Attachment

W. Du, D. Ohayon, C. Combe, L. Mottier, IP. Maria, R.S Ashraf, H. Fiumelli, S. Inal, I. McCulloch

Chemistry of Materials, 30, 17, 6164-6172, (2018)

 

Direct metabolite detection with an n-type accumulation mode organic electrochemical transistor

AM. Pappa, D. Ohayon, A. Giovannitti, IP. Maria, A. Savva, I. Uguz, J. Rivnay, I. McCulloch, R.M Owens, S. Inal

Science Advances, 4, 6, eaat0911, (2018)

 

Laser patterning of self-assembled monolayers on PEDOT:PSS films for preferential cell adhesion

D. Ohayon, C. Pitsalidis, A.M. Pappa, A. Hama, Y. Zhang, L. Gallais, R.M. Owens

Advanced Materials Interfaces, 4, 16, 1700191, (2017)

 

Controlled growth of CH3NH3PbI3 using a dynamically dispensed spin-coating method: improving efficiency with a reproducible PbI2 blocking layer

Y. Ma, P. Vashishtha, K. Chen, E.L. Peach, D. Ohayon, J.M. Hodgkiss, J.E. Halpert

ChemSusChem, 10, 1–9, (2017)

    Education

    • Ph.D student, Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia, 2017- Current
    • M.Sc., Material Science, University of Bordaux, Bordeaux, France, 2016
    • Engineering Diploma in Chemistry and Physics (specialty micro and nano-engineering), Graduate school of Chemistry, Biology and Physics of Bordeaux (ENSCBP), Bordeaux, France, 2016​

    Professional Profile

    • 2016: 6 months long internship at the Department of Bioelectronics, École Nationale Supérieure des Mines de Saint-Étienne, Gardanne, France
    • 2015: 5 months long internship in the Nanostructured Materials for Optoelectronic Device Applications group, School of Chemical and Physical Sciences, Victoria University of Wellington, New-Zealand

    Awards

    • ​Best abstract Panaxium award, BioEl, Kirchberg, Austria, 2019
    • Best student presentation, MRS Fall, Boston, USA, 2018​

    KAUST Affiliations

    ​Biological and Environmental 
Science & Engineering Division (BESE)

    Research Interests Keywords

    Material science Organic semiconductors Organic bioelectronics Bioscience
    KAUST

    "KAUST shall be a beacon for peace, hope and reconciliation, and shall serve the people of the Kingdom and the world."

    King Abdullah bin Abdulaziz Al Saud, 1924 – 2015

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