News
-
group
Welcome! A lot’s happened in the group since our last news post. Here are some abbreviated updates:
-
paper
Anti-ambipolar transistors feature a drain current that moves from OFF to ON to OFF states with increasing gate bias. This property is intrinsic to some conjugated polymers. However, limited stable and tunable...
-
paper
Organic mixed conductors for electrochemical transistors
Our review, “Organic mixed conductors for electrochemical transistors,” was published in Matter.
-
paper
Electrocatalytic on-site oxygenation for transplanted cell-based therapies
Implantable cell therapies and tissue transplants require a reliable oxygen supply to function effectively. However, achieving sufficient oxygenation within the transplant host remains challenging due to limited vascularization. Previous methods for exogenous...
-
paper
Droplet Polymer Bilayers for Bioelectronic Membrane Interfacing
New collaborations have created new opportunities for our synthetic biology sensors. The lab’s efforts to build cell membrane-derived bioelectronic devices are led by Dr. Emily Schafer, with the aim of creating platforms...
-
paper
Direct quantification of ion composition and mobility in organic mixed ionic-electronic conductors
Our paper “Direct quantification of ion composition and mobility in organic mixed ionic-electronic conductors” was published in Science Advances.
-
paper
Disordered systems, especially polymers, play an important role in shaping our modern society and are expected to be an even bigger part of the future. However, the complexities of these systems pose...
-
people
The Rivnay Group welcomes our new first-year PhD students, Victoria Kindratenko, Beliz Utebay, Rosalba Huerta and Junyi Liu, working on sensor robustness, lipid bilayer sensing, fundamentals and oxygenation projects, respectively. We have...
-
people
The Rivnay Group welcomes two new post-doctoral researchers, Yebin Lee and Priscila Cavassin, working on biochemical sensing and material characterization, respectively. We look forward to fantastic science and mentorship from Yebin and...
-
group
We enjoyed our bi-annual retreat to Michigan City, Indiana, on a warm weekend in September. Board games, cooking and outdoor fun were matched with equally energetic discussions on our research priorities and...
-
group
Ziplines, ropes courses, yard games, home-cooked food, and charades late into the night—a full day for the Rivnay Group on our quarterly retreat.
-
people
Congratulations, Professor Tropp!
Rivnay Group postdoc Joshua Tropp has joined the Department of Chemistry and Biochemistry at Texas Tech University as an assistant professor. Professor Tropp is an exceptional mentor and scientist, and anyone interested...
-
people
Our very own Dr. Ruiheng Wu successfully defended his PhD thesis, titled “Operando Characterization of Structure, Composition, and Charge Transport of OMIECs.”
-
people
Dr. Rebecca Keate successfully defended her PhD thesis, titled “Designing conductive polymer biomaterials for regenerative engineering applications.”
-
paper
Members of the Rivnay Group, Jonathan Rivnay, Xudong Ji and Abhijith Surendran, have contributed to a new paper, “Vertical organic electrochemical transistors for complementary circuits.”
-
group
Summer outings – Terrariums and Kayaking
Great group outings this summer:
-
paper
Sources and Mechanism of Degradation in p-Type Thiophene-Based Organic Electrochemical Transistors
Our paper “Sources and Mechanism of Degradation in p-Type Thiophene-Based Organic Electrochemical Transistors” was published in ACS Applied Electronic Materials.
-
award
Rebecca Keate presents Rising Stars of SQI Lecture (Aug 31, 2022)
Congratulations to Graduate Student Rebecca Keate, joint with Guillermo Ameer, on her Rising Stars lecture. See also her SQI interview here (Read more).
-
award
Josh Tropp receives multiple honors
Postdoc Josh Tropp was named an ACS PMSE Future Faculty Fellow: Read more. He received this honor and gave a number of talks at the ACS Fall Meeting in Chicago.
-
people
Congratulations to Jonathan Rivnay, who was promoted to Full Professor with tenure in the Dept. of Biomedical Engineering, effective Sept 1, 2022.
-
people
Congratulations to Dr. Reem Rashid!
Graduate Student Reem Rashid defended her PhD Thesis in Spring 2022. Congratulations, Doctor! She is the lab’s first PhD graduate.
-
paper
Chemical Reviews paper on Operando OMIEC characterization is out!
Grad Student Ruiheng Wu led an opus, “Operando Characterization of Organic Mixed Ionic/Electronic Conducting Materials,” now out in Chemical Reviews as part of a special issue on “Organic Bioelectronics.” Congrats to Ruiheng...
-
paper
A Semiconducting Two‐Dimensional Polymer as an Organic Electrochemical Transistor Active Layer
Our work “A Semiconducting Two‐Dimensional Polymer as an Organic Electrochemical Transistor Active Layer” was published in Advanced Materials. Congratulations to Reem Rashid for leading this effort with Austin Evans from Will Dichtel’s...
-
paper
3D Printed conducting hydrogels published in Macromolecular Bioscience
Our ongoing collaborative work with Cheng Sun’s lab at Northwestern is out now in Macromolecular Bioscience. Read the paper
-
paper
Reem's paper on OECT circuits for bioamplification was published in Science Advances!
Reem has published a new paper which focuses on means to make “back end” electronics more usable in more compact means, which could revolutionize how medicine utilizes bioelectronics in the body.
-
paper
Reem, Xudong, and Professor Rivnay have published a review in Biosensors and Bioelectronics!
The review examines the potential applications of organic electrochemical transistors in bioelectronic circuits, which hold potential in the fields of printed electronics, bioelectronics, and neuromorphic computing, among others.
-
award
Jonathan Rivnay gave a presentation entitled “Organic Electrochemical Transistors for Bioelectronics” at the 2021 conference.
-
award
Reem Rashid has received two awards, one Fulbright grant and one from the American-Scandinavian Foundation (ASF). She will use both to travel and study at Linköping University in Sweden.
-
award
Our lab has received a cooperative agreement with DARPA to develop a wireless, fully implantable ‘living pharmacy’ device that could help regulate human sleep patterns. The project is through the DARPA BTO...
-
paper
Bryan’s review was published in Annual Review of Materials Research!
The article, “Mixed Ionic-Electronic Transport in Polymers,” was published in July 2019. It was written by Bryan D. Paulsen, Dr. Rivnay, and Simone Fabiano, of the Laboratory of Organic Electronics, Department of...
-
paper
Bryan and Reem collaborated on a published study in Journal of the American Chemical Society!
The study, “Regiochemistry-Driven Organic Electrochemical Transistor Performance Enhancement in Ethylene Glycol-Functionalized Polythiophenes,” was a collaboration with the McCulloch group at King Abdullah University of Science and Technology.
-
paper
Xudong's Nature Communications paper featured in Northwestern Now!
Researchers have developed a brain-like computing device that is capable of learning by association. Similar to how famed physiologist Ivan Pavlov conditioned dogs to associate a bell with food, researchers at Northwestern...
-
award
Professor Rivnay was named an ACS PMSE Young Investigator!
The goal of this annual symposium is to highlight and provide a forum for ~15 early-career emerging leaders who have made significant contributions in their respective fields within polymer materials science and...
-
award
The Northwestern Predoctoral Biotechnology Training Program is an interdisciplinary and interdepartmental program that provides select graduate students (Trainees and Cluster members) greater research and training opportunities than those available through the individual...
-
paper
Anthony and Rebecca have published a new review paper in Chemistry of Materials!
Anthony Petty and Rebecca Keate published a review paper with the Ameer lab for ACS.
-
paper
Bryan and Reem also have published an article in Advanced Materials!
Our new paper is out in Advanced Materials: “Energetic Control of Redox‐Active Polymers toward Safe Organic Bioelectronic Materials.” This work was led by Alex Giovannitti at Stanford, with contributions from our very...
-
award
Jonathan was selected as MRS's Outstanding Early-Career Investigator!
The Materials Research Society has chosen Jonathan as an Outstanding Early-Career Investigator. He is the fifth Northwestern professor to receive this award. Jonathan is being honored for “innovative research on organic semiconductor...
-
award
Jonathan was recently chosen as one of ONR's Best and Brightest Young Investigators!
The Office of Naval Research has recognized 26 awardees as part of the Young Investigator Program in 2020. Professor Rivnay will receive a share of $14 million in funding for research that...
-
group
The Rivnay Group is excited to finally move into...
The Simpson Querrey Biomedical Research Center in downtown Chicago!
-
paper
New JoVE video article led by the Shull Group and our own graduate student, Emily!
The quartz crystal microbalance can provide accurate mass and viscoelastic properties for films in the micron or submicron range, which is relevant for investigations in biomedical and environmental sensing, coatings, and polymer...
-
group
The Rivnay Group's photo was chosen as the cover of Nature Materials' January issue!
Image: Jonathan Rivnay, Bryan Paulsen (Northwestern University).
-
paper
Self-aligned, laser-cut organic electrochemical transistors in Flexible and Printed Electronics
Read our latest paper in Flexible and Printed Electronics by Reem Rashid, Robert Ciechowski and Jonathan Rivnay.
-
award
IEEE is the world’s largest technical professional organization dedicated to advancing technology for the benefit of humanity.
-
paper
Organic mixed ionic–electronic conductors review in Nature Materials
Read our latest review of organic mixed ionic–electronic conductors in Nature Materials with Klas Tybrandt (Linköping University), Eleni Stavrinidou (Linköping University), our own post-doc Bryan Paulsen (Northwestern University), and Dr. Jonathan Rivnay...
-
award
Rivnay, Katsaggelos, Parrish Collaborations receive inaugural Catalyst Award!
Northwestern Engineering faculty members Jonathan Rivnay, Aggelos K. Katsaggelos, and Todd Parrish are members of teams that were granted $55,000 in seed money through the Collaborative Research Catalyst Awards. Rivnay, assistant professor...
-
people
Our lab is excited to welcome Juliana Trujillo! She comes from Santa Clara University as a Bioengineering major. She’ll be spending her summer in the lab as an International Institute for Nanotechnology...
-
award
Prof. Rivnay invited to and presented at the inaugural Bioelectronics Research Conference (GRC)
The first conference on Bioelectronics seeks to establish an interdisciplinary community of scientists and engineers working on problems related to Bioelectronics. Challenges in the emerging field span length scales including the nanoscale...
-
award
Prof. Rivnay named Sloan Research Fellow
Jonathan Rivnay has been named a 2019 Sloan Fellow in Chemistry, awarded by the Alfred P. Sloan Foundation. This award will continue to fund our work developing and understanding organic mixed conductors,...
-
people
Welcome Yu, visiting from CUHK
Welcome to Yu Zhang, who will be visiting the lab for 6 months from Prof. Ni Zhao’s group at the Chinese University of Hong Kong (CUHK).
-
people
Welcome Vishak, Reem, and Mayra
With new lab space and equipment, we welcome our post-doc, Vishak Venkatraman, and two new PhD students: Reem Rashid (BME) and Mayra Celene Cortez Alcaraz (BME). They all started in Summer/Fall 2017...
-
paper
Paper on subthreshold OECT operation for low power EEG published in Advanced Science
Vishak’s paper “Subthreshold Operation of Organic Electrochemical Transistors for Biosignal Amplification” is now online at Advanced Science. Congratulations, Vishak! This work details the use of OECTs with sharp subthreshold slopes (60 mV/dec)...
-
paper
Side-chain engineering for n-type bioelectronic polymers
A collaborative effort with Iain McCulloch (KAUST/Imperial) shows the importance of side-chain engineering for tuning the transistor operating regimes and electrochemical properties of promising electron-transporting polymers. Check out “The Role of the...
-
paper
Review on OECT device physics out in Organic Electronics
A new review paper is out in Organic Electronics, “Device Physics of Organic Electrochemical Transistors” – an opus by Jacob Friedlein. Unlike other reviews on OECTs that focus on chemistry of materials,...
-
award
Prof. Rivnay named CMBE Rising Star
Prof. Jonathan Rivnay was honored on January 2-6, 2019, as a “Rising Star” of the Cellular and Molecular Bioengineering (CMBE) special interest group of the Biomedical Engineering Society (BMES), at the annual...
-
award
Prof. Rivnay receives 2018 NSF CAREER Award
Prof. Jonathan Rivnay was awarded an NSF CAREER award for “Understanding the Role of Structure on Ionic/Electronic Properties in Polymeric Mixed Conductors.”
-
paper
OECT review in Nature Reviews Materials
Read our latest overview on Organic Electrochemical Transistor (OECT) materials, devices, technology and applications, published in Nature Reviews Materials with Sahika Inal (KAUST), Alberto Salleo (Stanford), Róisín Owens (Cambridge), Magnus Berggren (Linköping),...
-
award
Mayra wins third place in image contest at SQI
Congrats to Mayra, who placed 3rd in the SQI image contest!
-
paper
Our paper “Role of the Anion on the Transport and Structure of Organic Mixed Conductors” is published in Advanced Functional Materials. Congratulations to Camila and the entire team. This article highlights the...
-
paper
Benchmarking bioelectronic materials, paper out in Nature Communications
Also out in 2017: Our new work on proper comparison and benchmarking of active materials for bioelectronic applications (in this case: electrochemical transistors) was published in Nature Communications: “Benchmarking organic mixed conductors...
-
paper
Addressing the stability of new organic bioelectronic materials
New work in collaboration with Iain McCulloch (KAUST/Imperial) highlights design rules to address stability of BDT-based organic semiconductors for bioelectronic applications. Check out “Redox-Stability of Alkoxy-BDT Copolymers and their Use for Organic...
-
paper
Review Paper in Science Advances
Highlight from 2017, in case you missed it: Jonathan published a review article with the Malliaras (Cambridge) and Deisseroth (Stanford) groups in Science Advances. “Next-generation probes, particles, and proteins for neural interfacing.”...
-
group
Rivnay Group arriving at Northwestern
Jonathan Rivnay is starting his group in the Biomedical Engineering Department on February 1st, 2017. Check back for updates and information as we get settled and build up the lab.