Kinetic Liquid Metal Synthesis of Flexible 2D Conductive Oxides for Multimodal Wearable Sensing ( link)

Short Description: This work presents an innovative approach to creating flexible, transparent, and highly conductive 2D electrodes using a low-temperature, scalable printing technique. By leveraging a liquid metal process, the study overcomes the traditional challenges of brittleness and high manufacturing costs associated with transparent conducting oxides (TCOs). The result is ultrathin indium tin oxide (ITO) films with exceptional flexibility and durability, making them ideal for wearable bioelectronics. Demonstrating real-world applications, these electrodes enable simultaneous ECG and PPG measurements, paving the way for more advanced and versatile wearable devices. This breakthrough redefines the possibilities for integrating transparent electronics into flexible technologies 

Broadband mechanoresponsive liquid metal sensors ( link)

Short Description: Stretchable electronics conform to human body geometries, enabling advanced biomechanical sensing. We present a high-frequency AC-enhanced resistive sensing method using liquid metals to improve low-power detection of mechanical stimuli. By modulating the "skin effect," this approach distinguishes in-plane stretching from out-of-plane compression—deformations traditionally indistinguishable. Demonstrated in a gesture-detecting glove and a respiratory sensor, this method is 100 times more energy-efficient than DC sensors. This innovation promises precise, low-power wearables for haptics and biomedical applications.

3D Woven Liquid Metals for Radio-Frequency Stretchable Circuits ( link)

Short description: Stretchable inductors are vital for wearable electronics and IoT devices, enabling wireless power, sensing, and communication. Liquid metals (LMs) offer flexibility but suffer from poor RF performance. Here, we present 3D-woven LM "litz" wires that mitigate RF losses, boosting the Quality Factor (Q) by 80% compared to standard LM wires. These inductors retain high Q (>30) and 98% wireless efficiency under 30% biaxial strain. Additionally, 3D-printed four-terminal "choke" inductors demonstrate tunable RF filtering capabilities. This work paves the way for advanced, flexible electromagnetic devices in healthcare and IoT applications

3D Printed Microlattices of Transition Metal/Metal Oxides for Highly Stable and Efficient Water Splitting ( link)

Short Description: We have developed a novel 3D printing method to create low-cost and efficient electrodes for electrocatalytic hydrogen production. This method, called polymer infusion additive manufacturing (PIAM), allows for the creation of large-area, 3D-printed structures with carbon core and metal/metal oxide shells. These structures outperform state-of-the-art metallic foams and can be easily customized with various transition metals, such as copper or cobalt, to optimize their performance. The resulting materials have shown exceptional durability and electrocatalytic activity, making them promising for large-scale water splitting and sustainable hydrogen fuel production.

Transforming 3D-printed mesostructures into multimodal sensors with nanoscale conductive metal oxides (link)

Short Description: We present a versatile method to transform 3D-printed mesostructures into functional 3D electronics. By applying atomic layer deposition (ALD) of conducting metal oxides onto ultrasmooth polymer lattices, we achieve tunable electronic properties in 3D. Using graph theory, we design structures with precise conductivity, enabling multimodal sensing of chemical, thermal, and mechanical stimuli with up to 100× sensitivity improvement over 2D films. This approach paves the way for advanced low-power sensors and next-generation microrobotics, energy devices, and biosensors. 

Hybrid Sintering for High-Performance Stretchable Conductors  (link)

Short Description: This work introduces a simple yet innovative printing technique to create highly stretchable and conductive materials without relying on costly nanomaterials. Using a silver flake ink, the process combines two layers—one mildly sintered and the other fully sintered—to balance flexibility and conductivity. This clever design results in a stretchable conductor that can stretch up to 120% of its length while maintaining stable performance, enduring over 250 stretching cycles, and achieving impressive conductivity. With potential for low-cost, scalable manufacturing, this breakthrough paves the way for more durable and efficient wearable devices.