Dartmouth Events

Atomically Thin Bioelectronics

Engineering research seminar with Dmitry Kireev, research associate at University of Texas-Austin

Wednesday, March 29, 2023
3:30pm – 4:30pm
Intended Audience(s): Public
Categories: Lectures & Seminars

Meeting ID: 951 4202 1459
Passcode: 113629

Modern electronic components are rigid, solid, and stiff—a terrible match for soft, squishy, and deformable tissue such as human skin or inner organs such as the brain. The material mismatch results in the conceptual incompatibility of modern electronics with biological tissue. Nanoscale materials, such as graphene and other 2D materials, on the other hand, are unique constructs: in addition to their apparent unobtrusive atomic thickness, they are flexible, transparent, and biocompatible, matching perfectly with biological tissue. 

In this talk, I will introduce state-of-the-art wearable and implantable bioelectronic technologies and expose their limitations. After uncovering the limits of modern electronic technologies, I will introduce to the audience how can we empower the next-generation electronic devices using 2D materials (graphene, MoS2, PtSe2, PtTe2, hBN, and other emerging ones) can improve healthcare. Specifically: 

  • I will show how graphene-based microelectrode arrays and field-effect transistors can be used to efficiently communicate with neuronal cells or construct biosensors (eg, for COVID-19);
  • I will introduce atomically thin electronic tattoos made of graphene and PtTe2 that can be used to non-invasively monitor human electrophysiology, including complex biomarkers such as arterial blood pressure; 
  • I will show our recent progress in creating biocompatible artificial transistors that mimic biological synapse behavior and provide the route toward a fully morphed brain-like electronic system.

Lastly, I will present my future plans to develop a unique toolbox of unconventional atomically thin bioelectronic devices, such as: 

  1. wearable e-tattoo transistors (as signal pre-amplifiers and sweat biosensors);
  2. advanced transparent high-density cortical implants;
  3. soft biocompatible artificial synaptic transistors capable of mimicking electrochemical neuronal behavior; and
  4. intradermal nanoelectronics which will essentially enable direct integration of the nanoscale electronic components with the tissue, creating life-long tissue implants and smart cyborg organs.


For more information, contact:
Ashley Parker

Events are free and open to the public unless otherwise noted.