About

Jingyan Dong is a Professor in the Edward P. Fitts Department of Industrial and Systems Engineering at North Carolina State University. He received his Bachelor's degree in Automatic Control from the University of Science and Technology of China in 1998, his Master's degree in Manufacturing Automation from the Chinese Academy of Sciences in 2001, and his Ph.D. in Mechanical Engineering from the University of Illinois at Urbana-Champaign in 2006. His research interests include Micro/Nano manufacturing, multi-scale mechatronics and manufacturing systems, and multi-scale biomedical manufacturing. Dr. Dong has worked as a Post-Doctoral Research Associate at the Center for Nanoscale Chemical-Electrical-Mechanical Manufacturing Systems and as a Lecturer at the University of Illinois before joining NC State in 2008. His work focuses on high-resolution 3D printing, micro-scale additive manufacturing, printed electronics, and data analysis for manufacturing. He has received numerous honors, including the IISE Fellow Award in 2025 and the SME Distinguished Faculty Advisor Award in 2023.

Research topics

• Composite material
• Materials science
• Nanotechnology
• Electrical engineering
• Computer Science
• Engineering
• Mechanical engineering
• Telecommunications
• Optoelectronics
• Chemical engineering
• Chemistry

Selected publications

• Advanced Neural Probe Sensors toward Multi‐Modal Sensing and Modulation: Design, Integration, and Applications

  UNC Libraries · 2026-04-09

  articleOpen access

  Neural probe devices have undergone significant advancements in recent years, evolving from basic single‐functional devices to sophisticated integrated systems capable of sensing, stimulating, and regulating neural activity. The neural probes have been demonstrated as effective tools for diagnosing and treating numerous neurological disorders, as well as for understanding sophisticated connections and functions of neuron circuits. The multifunctional neural probe platforms, which combine electrical, optical, and chemical sensing capabilities, hold promising potential for revolutionizing personalized healthcare through closed‐loop neuromodulation, particularly in the treatment of conditions such as epilepsy, Parkinson's disease, and depression. Despite these advances, several challenges remain to be further investigated, including biocompatibility, long‐term signal quality and stability, and miniaturization, all of which hinder their broader clinical application. This paper provides an overview of the design principles of the neural probe structures and sensors, fabrication strategies, and integration techniques for the advanced multi‐functional neural probes. Key electrical, optical, and chemical sensing mechanisms are discussed, along with the selection of corresponding functional materials. Additionally, several representative applications are highlighted, followed by a discussion of the challenges and opportunities that lie ahead for this emerging field. This paper reviews the design principles, fabrication strategies, and integration techniques for advanced neural probes, focusing on systems with electrophysiological, optical, and chemical sensing and modulation capabilities. Representative applications of neural probes in treating neurological disorders and their critical role in advancing personalized neurotherapeutic solutions are discussed. Additionally, the challenges and opportunities of this emerging area are also highlighted.

  PublisherDOI

• Characterization of screen-printed silver nanowire (AgNW)-based soft strain sensors

  Manufacturing Letters · 2025-08-01

  articleOpen accessSenior authorCorresponding

  The exceptional electrical conductivity and flexibility of silver nanowires (AgNWs) have gained significant interest within the wearable sensor applications. The utilization of AgNWs conductive channels offers a potential economically viable strategy for the advancement of flexible and stretchable electronics, which possess unique attributes as strain sensors. The width of these conductive channels has a crucial role in determining the distribution of AgNWs, which in turn has the ability to affect the performance of sensors. The objective of this study is to investigate the impact of open channel width on the dispersion of printed AgNWs and its subsequent impacts on the electrical characteristics of strain sensors. Polydimethylsiloxane (PDMS) is selected as the material for molds and substrates owing to its inherent stretchability, making it a popular choice for the fabrication of flexible and/or stretchable sensors. Laser cutting technique was employed to produce the screen-printing mold with a range of channel widths. Then strain sensors were fabricated by printing AgNW suspensions through the mold, and analyzed their resulting electrical properties. This study encompassed the measurement of gauge parameters in order to evaluate sensitivity, the analysis of linearity and hysteresis to assess response consistency. Finally, based on the sensitivity required for sensing the gesture motion on the hand, we select strain sensors with appropriate widths of AgNWs to attach to the hand in order to detect finger or hand gestures to show its potential application as wearable electronics.

  PublisherDOI

• Investigation of waveform parameters in inkjet printing of PEDOT:PSS ink for flexible electronics fabrication

  Flexible and Printed Electronics · 2025-10-31

  articleOpen accessSenior author

  Abstract Inkjet printing has emerged as a versatile technique for the fabrication of functional materials towards non-traditional electronics, offering high precision maskless fabrication capability, low material waste, and wide substrate compatibility. However, the realization of high-quality printing of microscale features requires precise control over the jetting behavior and film formation. In this work, we systematically investigate the printing parameters for the PEDOT:PSS ink on the flexible substrates used in wearable and flexible electronics. By exploring the interplay between the printing waveform parameters, such as drive voltage, dwell time, and jetting frequency, we establish a robust operational window enabling stable droplet ejection and tunable deposition. Droplet spacing is further studied to achieve reliable droplet coalescence for high quality fabrication of the continuous patterns with high line resolution and pattern uniformity. Multilayer printing reveals consistent improvements in film thickness and electrical conductivity, with a pronounced enhancement in early layers due to percolation and phase rearrangement. The achieved printing strategy is successfully applied in functional circuit demonstrations, showing excellent electrical stability under mechanical deformation. This work offers a reproducible and scalable printing approach tailored to the PEDOT:PSS inks, providing a technical foundation for the fabrication of high-performance flexible and printed electronics.

  PublisherDOI

• Symmetry Engineering in a 2D Transition Metal Enables Reconfigurable P- and N-Type FETs

  Nano Letters · 2025-01-02 · 5 citations

  article

  Two-dimensional (2D) transition metals enable the elimination of metal-induced gap states and Fermi-level pinning in field-effect transistors (FETs), offering an advantage over conventional metal contacts. However, transition metal substrates typically exhibit nonoriented behaviors, leading to the inability to achieve monolingual responses with P- or N-type semiconductors. Here we devise symmetry engineering in an oxidized architectural MXene, termed OXene, which implements the exploiting and coupling of additional out-of-plane electron conduction and built-in polar structures. OXene combines oriented inhibitory and excitatory characteristics to achieve reconfigurable FET substrates, leveraging the modulation carrier dynamics at the metal-semiconductor interface. By coupling OXene with MXene, we achieve complementary semiconductor responses that introduce an additional dimension of programmability in logic configurations.

  PublisherDOI

• Dual‐Gate Organic Electrochemical Transistors Based on Laser‐Scribed Graphene for Detecting Dopamine and Glutamate

  Advanced Materials Technologies · 2025-01-22 · 3 citations

  articleOpen access

  Abstract Organic electrochemical transistors (OECTs) are gaining significant attention due to their high sensitivity, customizability, ease of integration, and low‐cost manufacturing. In this paper, we design and develop a flexible dual‐gate OECT based on laser‐scribed graphene (LSG) with modified OECT gates for the detection of dopamine and glutamate, two critical neurotransmitters (NTs). The developed OECTs are fully carbon‐based and environmentally friendly. By modifying the gates of OECTs with biopolymer chitosan and L‐Glutamate oxidase enzyme, highly selective and sensitive measurements are successfully achieved with detection limits of 5 n m for dopamine and 1 µ m for glutamate, respectively. The modified dual‐gate shows no interference between the detections of two neurotransmitters, making it a promising tool for customized multi‐neurotransmitter analysis. The results demonstrate the potential of LSG‐based OECTs in customizable biosensing applications, offering a flexible, cost‐effective platform for biomedical disorder diagnostics.

  PublisherOA PDFDOI

• Ecofriendly Printing of Silver Nanowires with Cellulose Binder for Highly Robust Flexible Electronics

  Advanced Electronic Materials · 2025-04-24

  articleOpen access

  Abstract Scalable manufacturing of soft electronics with high performance and reliability represents one of the most demanding challenges for the application of soft electronics. Herein, an ecofriendly silver nanowire (AgNW) based ink with cellulose as the binder is reported. The ink properties, annealing condition, and electromechanical properties of the printed electronics are investigated. With a proper annealing process, the hot‐melt binder under high temperatures provides excellent adhesion between the NWs and the substrate, leading to robust electrical performance of the printed AgNWs under mechanical deformation, tape peeling, scratching, and chemical corrosion. The printed AgNWs are demonstrated as flexible temperature sensors due to their temperature‐dependent resistance behavior. The temperature sensors are used to sense touching, respiration, and body temperature. The mechanical robustness and chemical stability of the printed AgNW electronics, without the need of an encapsulation layer, makes them ideal for skin‐mounted electronics applications.

  PublisherOA PDFDOI

• Programmed death-ligand 1 mediates triple-negative breast cancer metastasis and stemness through ten-eleven translocation 3

  International Journal of Biological Macromolecules · 2025-11-05

  articleCorresponding
  PublisherDOI

• Fabrication of flexible electronics by screen printing with PEDOT: PSS/graphene composite ink

  Manufacturing Letters · 2025-08-01 · 1 citations

  articleOpen accessSenior authorCorresponding

  Recently, flexible and wearable electronics have received increasing attention with many emerging applications. Compared with traditional electronic devices on the rigid substrates, flexible electronics provide great potential in portable and wearable applications. PEDOT: PSS, as a conductive polymer, has high mechanical flexibility, making it suitable for the fabrication of wearable and deformable electronic devices such as organic transistors, photovoltaics, and wearable sensors. This intrinsic flexibility is crucial in enabling next-generation flexible electronics that are ultrathin, transparent, and wearable. However, the electrical conductivity of pristine PEDOT: PSS is often below 1 S/cm, which is insufficient for many electronic devices such as organic photovoltaics and organic transistors. In this work, we synthesized PEDOT: PSS/ Graphene composite to enhance the electrical performance of PEDOT: PSS. To achieve low-cost and scalable fabrication, we explored a screen-printing process to print the conductive PEDOT: PSS/ Graphene patterns onto various substrates. The PEDOT: PSS/ Graphene composite ink was developed for the screen-printing process with the ink viscosity and flowability adjusted by different ratio of polyethylene oxide (PEO) additive. Different weight ratios of graphene and PEO were studied to achieve stable and printable ink for the device fabrication. The effect of the ink composition on the pattern resolution and electric performance was experimentally characterized to obtain the trade-off between ink printability, electrical properties and printing resolution. Using the synthesized PEDOT: PSS/graphene ink, the printed circuits demonstrated excellent flexibility in the bending tests. The circuits provided stable electrical response under bending and twisting deformation and under hundreds of bending cycles, which provide a promising approach toward scalable fabrication of flexible wearable electronics.

  PublisherDOI

• Advanced multi-nozzle electrohydrodynamic printing: mechanism, processing, and diverse applications at micro/nano-scale

  International Journal of Extreme Manufacturing · 2024-11-13 · 29 citations

  articleOpen access

  Abstract Electrohydrodynamic (EHD) jet printing represents a novel micro/nano-scale additive manufacturing process that utilises a high-voltage induced electric field between the nozzle and the substrate to print micro/nanoscale structures. EHD printing is particularly advantageous for the fabrication on flexible or non-flat substrates and of large aspect ratio micro/nanostructures and composite multi-material structures. Despite this, EHD printing has yet to be fully industrialised due to its low throughput, which is primarily caused by the limitations of serial additive printing technology. The parallel multi-nozzle array-based process has become the most promising option for EHD printing to achieve large-scale printing by increasing the number of nozzles to realise multichannel parallel printing. This paper reviews the recent development of multi-nozzle EHD printing technology, analyses jet motion with multi-nozzle, explains the origins of the electric field crosstalk effect under multi-nozzle and discusses several widely used methods for overcoming it. This work also summarises the impact of different process parameters on multi-nozzle EHD printing and describes the current manufacturing process using multi-nozzle as well as the method by which they can be realised independently. In addition, it presents an additional significant utilisation of multi-nozzle printing aside from enhancing single-nozzle production efficiency, which is the production of composite phase change materials through multi-nozzle. Finally, the future direction of multi-nozzle EHD printing development is discussed and envisioned.

  PublisherDOI

• Advanced Neural Probe Sensors toward Multi‐Modal Sensing and Modulation: Design, Integration, and Applications

  Advanced Sensor Research · 2024-12-16 · 9 citations

  articleOpen accessSenior authorCorresponding

  Abstract Neural probe devices have undergone significant advancements in recent years, evolving from basic single‐functional devices to sophisticated integrated systems capable of sensing, stimulating, and regulating neural activity. The neural probes have been demonstrated as effective tools for diagnosing and treating numerous neurological disorders, as well as for understanding sophisticated connections and functions of neuron circuits. The multifunctional neural probe platforms, which combine electrical, optical, and chemical sensing capabilities, hold promising potential for revolutionizing personalized healthcare through closed‐loop neuromodulation, particularly in the treatment of conditions such as epilepsy, Parkinson's disease, and depression. Despite these advances, several challenges remain to be further investigated, including biocompatibility, long‐term signal quality and stability, and miniaturization, all of which hinder their broader clinical application. This paper provides an overview of the design principles of the neural probe structures and sensors, fabrication strategies, and integration techniques for the advanced multi‐functional neural probes. Key electrical, optical, and chemical sensing mechanisms are discussed, along with the selection of corresponding functional materials. Additionally, several representative applications are highlighted, followed by a discussion of the challenges and opportunities that lie ahead for this emerging field.

  PublisherOA PDFDOI

Recent grants

• Investigation of Electrohydrodynamic 3D Printing for Super-Resolution Additive Manufacturing

  NSF · $280k · 2013–2018

• Flexible fMRI-Compatible Neural Probes with Organic Semiconductor based Multi-modal Sensors for Closed Loop Neuromodulation

  NSF · $605k · 2024–2027

• Ultrasonic Vibration Assisted NanoMachining for High-rate Tunable 2D and 3D Nanofabrication

  NSF · $358k · 2012–2016

• Collaborative Research: Defect Modeling and Process Optimization for Nanowire Growth towards Improved Nanodevice Reliability

  NSF · $244k · 2011–2015

Frequent coauthors

• Y. Huan

  Chinese Academy of Sciences

  29 shared

• Baoan Sun

  27 shared

• Placid M. Ferreira

  Urbana University

  26 shared

• H. Y. Bai

  25 shared

• W.H. Wang

  Institute of Geographic Sciences and Natural Resources Research

  19 shared

• Yinghao Feng

  18 shared

• Chuang Wei

  Affiliated Hospital of Qingdao University

  14 shared

• Paul H. Cohen

  North Carolina State University

  13 shared

Education

• PostDoc, Mechanical Engineering

  University of Illinois at Urbana-Champaign

  2008

• PhD, Mechanical and Industrial Engineering

  University of Illinois at Urbana-Champaign

  2006

• M.S.

  Institute of Automation, Chinese Academy of Sciences

  2001

• B.S.

  University of Science and Technology of China

  1998

Awards & honors

• IISE Fellow Award (2025)
• SME Distinguished Faculty Advisor Award (2023)
• Outstanding Paper Award, SME North American Manufacturing Re…
• IOP Outstanding Reviewer Award (2018)
• Outstanding Paper Award, SME North American Manufacturing Re…