A5063059179- Advanced Sensor and Energy Harvesting Materials
- Advanced Materials and Mechanics
- Advanced MEMS and NEMS Technologies
- Force Microscopy Techniques and Applications
- 3D Printing in Biomedical Research
- Analytical Chemistry and Sensors
- Polymer composites and self-healing
- Mechanical and Optical Resonators
- Modular Robots and Swarm Intelligence
- Tactile and Sensory Interactions
- Micro and Nano Robotics
- Innovative Microfluidic and Catalytic Techniques Innovation
Northwestern University
2018-2021
Tsinghua University
2017-2021
Abstract Capabilities for controlled formation of sophisticated 3D micro/nanostructures in advanced materials have foundational implications across a broad range fields. Recently developed methods use stress release prestrained elastomeric substrates as driving force assembling structures and functional microdevices from 2D precursors. A limitation this approach is that releasing these their substrate returns them to original layouts due the elastic recovery constituent materials. Here,...
Microfluidic technologies have wide-ranging applications in chemical analysis systems, drug delivery platforms, and artificial vascular networks. This latter area is particularly relevant to 3D cell cultures, engineered tissues, organs, where volumetric capabilities fluid distribution are essential. Existing schemes for fabricating microfluidic structures constrained realizing desired layout designs, producing physiologically microvascular structures, and/or integrating active...
Abstract Recent research establishes methods of controlled mechanical assembly as versatile routes to three-dimensional (3D) mesostructures from patterned 2D films, with demonstrated applicability a broad range materials (e.g., semiconductors, polymers, metals, and their combinations) length scales sub-microscale centimeter scale). Previously reported schemes use pre-stretched elastomeric substrates platforms induce compressive buckling precursor structures, thereby enabling transformation...
Abstract To address the resource-competing issue between high sensitivity and wide working range for a stand-alone sensor, development of capacitive sensors with an adjustable gap two electrodes has been growing interest. While several approaches have developed to fabricate tunable sensors, it remains challenging achieve, simultaneously, broad in single device. In this work, 3D sensor seesaw-like shape is designed fabricated by controlled compressive buckling assembly, which leverages...
Abstract A development of single‐crack‐activated impedance strain sensors with unprecedented sensitivity is demonstrated first. The gauge factor the device beyond 10 8 in −4 range comparison reported highest 1.5 × 5 within 6e‐1 range, and displacement 1.6 MΩ nm −1 . extremely high attributed to transition region which has never been studied before. Multiple‐crack‐based sensors, however, cannot work due complicated interaction among cracks, essentially limits their sensitivity. Additionally,...
This paper presents structure design, microfabrication processes, calibration techniques and experimental results of differential capacitance force sensors with features sub-nano-newton sensitivity, up to 10 000 Hz sampling rate, applicability as stand-alone devices. The representative sensor demonstrates a resolution 0.11 nN at 19 rate or 1.47 Hz. A novel asymmetric proposed in remarkable increase the ratio measurement range comparison traditional symmetric structure. In addition, stiction...