• 8216 Citations
20062023
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Personal profile

Research Interests

The Rivnay research group designs and develops new materials and devices to facilitate the seamless integration of sensing/actuation technologies with cells and tissue to enable improvements in diagnosis and therapy. Our research focuses on active materials such as conducting polymers due to their synthetic tunability, soft mechanical properties, demonstrated stability and compatibility with biological tissue, and their ability to take on a broad range of form factors from ultra-thin and flexible, to fibrous or scaffold-like. Importantly, these materials exhibit mixed ionic and electronic conduction, which aids in closing the signaling gap inherent to the bioelectronic interface. We utilize the unique properties of these soft, optoelectronically active materials to bridge the disparate worlds of biological systems and traditional microelectronic and optical tools.

The lab’s ongoing work makes use of electroactive polymers to realize efficient electrophysiological and biomarker-specific sensors, as well as electrical and chemical stimulators. These tools offer localized and less invasive bidirectional interfacing for in vivo applications, and are integral for high throughput, sensitive in vitro lab-on-chip platforms used for toxicology. The design of new organic bioelectronic materials and their devices promises to influence a broad range of applications beyond electrical/chemical sensing and stimulation, including on-demand actuation for surgical and soft robotics, as well as electroactive tissue regeneration.

Education/Academic qualification

Materials Science and Engineering, PhD, Stanford University

… → 2012

Materials Science and Engineering, MS, Stanford University

… → 2010

Materials Science and Engineering, BS, Cornell University

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Transistors Chemical Compounds
transistors Physics & Astronomy
Polymers Chemical Compounds
Conducting polymers Chemical Compounds
Ions Chemical Compounds
Charge transfer Engineering & Materials Science
Transconductance Chemical Compounds
Conjugated polymers Chemical Compounds

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Grants 2018 2023

Conducting polymers
Polymers
Ions
Signal transduction
Biomolecules
Electronic properties
Polymers
Signal transduction
Amplification
Ions

Research Output 2006 2019

Glycolated Thiophene-Tetrafluorophenylene Copolymers for Bioelectronic Applications: Synthesis by Direct Heteroarylation Polymerisation

Parr, Z. S., Halaksa, R., Finn, P. A., Rashid, R. B., Kovalenko, A., Weiter, M., Rivnay, J., Krajčovič, J. & Nielsen, C. B., Jan 1 2019, In : ChemPlusChem.

Research output: Contribution to journalArticle

Thiophenes
Copolymers
Polymerization
Transistors
Transconductance
6 Citations (Scopus)

Influence of Water on the Performance of Organic Electrochemical Transistors

Savva, A., Cendra, C., Giugni, A., Torre, B., Surgailis, J., Ohayon, D., Giovannitti, A., McCulloch, I., Di Fabrizio, E., Salleo, A., Rivnay, J. & Inal, S., Feb 12 2019, In : Chemistry of Materials. 31, 3, p. 927-937 11 p.

Research output: Contribution to journalArticle

Transistors
Ions
Water
Doping (additives)
Semiconducting organic compounds

Organic mixed ionic–electronic conductors

Paulsen, B. D., Tybrandt, K., Stavrinidou, E. & Rivnay, J., Jan 1 2019, (Accepted/In press) In : Nature materials.

Research output: Contribution to journalReview article

conductors
Terminology
Optoelectronic devices
Transport properties
Energy storage
7 Citations (Scopus)

Role of the Anion on the Transport and Structure of Organic Mixed Conductors

Cendra, C., Giovannitti, A., Savva, A., Venkatraman, V., McCulloch, I., Salleo, A., Inal, S. & Rivnay, J., Feb 1 2019, In : Advanced Functional Materials. 29, 5, 1807034.

Research output: Contribution to journalArticle

Anions
Negative ions
conductors
Ions
anions
1 Citation (Scopus)

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

Savva, A., Ohayon, D., Surgailis, J., Paterson, A. F., Hidalgo, T. C., Chen, X., Maria, I. P., Paulsen, B. D., Petty, A. J., Rivnay, J., McCulloch, I. & Inal, S., Jan 1 2019, In : Advanced Electronic Materials. 5, 8, 1900249.

Research output: Contribution to journalArticle

Transistors
Polymers
Copolymers
Glucose sensors
Electron mobility