A5070375359- Advanced Sensor and Energy Harvesting Materials
- Tactile and Sensory Interactions
- Advanced Materials and Mechanics
- Adhesion, Friction, and Surface Interactions
- Nanomaterials and Printing Technologies
- Polymer composites and self-healing
- Surface Modification and Superhydrophobicity
- Pickering emulsions and particle stabilization
- Micro and Nano Robotics
- Conducting polymers and applications
- Polymer Surface Interaction Studies
- Interactive and Immersive Displays
- Photonic Crystals and Applications
- Innovative Microfluidic and Catalytic Techniques Innovation
- Supercapacitor Materials and Fabrication
Sungkyunkwan University
2019-2025
Korea Research Institute of Standards and Science
2021-2025
Max Planck Institute for Intelligent Systems
2024
Korea Advanced Nano Fab Center
2018
Abstract Amphibian adhesion systems can enhance forces on wet or rough surfaces via hexagonal architectures, enabling omnidirectional peel resistance and drainage against surfaces, often under flowing water. In addition, an octopus has versatile suction cups with convex cup structures located inside the chambers for strong in various dry conditions. Highly air‐permeable, water‐drainable, reusable skin patches enhanced pulling resistance, inspired by microchannel network toe pads of tree...
Wearable and skin-attachable electronics with portable/wearable stretchable smart sensors are essential for health-care monitoring devices or systems. The property of adhesion to the skin in both dry wet environments is strongly required efficient various human activities. We report here a facile, low-cost, scalable fabrication method skin-adhesive graphene-coated fabric (GCF) that sensitive respond fast applied pressure strain. With octopus-like patterns formed on side GCF touches skin,...
The development of bioinspired switchable adhesive systems has promising solutions in various industrial/medical applications. Switchable and perceptive adhesion regardless the shape or surface object is still challenging dry aquatic surroundings. We developed an electronic sensory soft device that recapitulates attaching, mechanosensory, decision-making capabilities a actuator. actuator artificial octopus sucker may precisely control its robust attachment against surfaces with topologies...
Mimicking the attachment of octopus suction cups has become appealing for development skin/organ adhesive patches capable strong, reversible adhesion in dry and wet conditions. However, achieving high conformity against three-dimensionally (3D) rough curved surfaces human body remains an enduring challenge further medical applications wound protection, diagnosis, or therapeutics. Here, patch inspired by soft wrinkles miniaturized 3D is presented drainability robust organs. Investigating...
Abstract Integrated bioelectronics with conformal adhesion interfaces on dry/wet biosurfaces and water‐repellent stretchable electric elements are in high demand for reliable real‐time diagnostics of the dynamic human body. Here, authors present a diving beetle‐inspired electro‐adhesive patch mechanically robust nanowire‐implanted conductive multiscale architectures that provides skin‐adaptable, isotropically interface multiple‐biosignal monitoring device. Using facile all‐solution‐based...
The development of an electronic skin patch that can be used in underwater environments considered essential for fabricating long-term wearable devices and biomedical applications. Herein, we report a stretchable conductive polymer composite (CPC) on which octopus sucker-inspired structure is formed to conformally contact with biological may rough wet. patterned hexagonal mesh water air permeability. films are suited strain sensor or electrode as their piezoresistive responses controlled by...
Abstract Continuously printable electronics have the significant advantage of being efficient for fabricating conductive polymer composites; however, precise tailoring 3D hierarchical morphology nanocomposites in a simple dripping step remains challenging. Here, we introduce one‐step direct printing technique to construct diverse microdome morphologies influenced by interfacial Marangoni effect and nanoparticle interactions. Using jet dispenser continuous processing, effectively fabricated...
The human skin has inspired multimodal detection using smart devices or systems in fields including biomedical engineering, robotics, and artificial intelligence. Hairs of a high aspect ratio (AR) connected to follicles, particular, detect subtle structural displacements by airflow ultralight touch above the skin. Here, hairy electronics assembled with an array graphene sensors (16 pixels) microhairs for tactile stimuli details airflows (e.g., intensity, direction, incident angle) are...
Considering the characteristics and operating environment of remotely controlled miniature soft robots, achieving delicate adhesion control over various target surfaces is a substantial challenge. In particular, ability to delicately grasp wrinkled biological nonbiological with low preload without causing damage essential. The proposed adhesive robotic system, inspired by secretions from velvet worm, uses structured magnetorheological material that exhibits precise stability repeatability...
Abstract Autonomously self‐healing, reversible, and soft adhesive microarchitectures structured electric elements could be important features in stable versatile bioelectronic devices adhere to complex surfaces of the human body (rough, dry, wet, vulnerable). In this study, we propose an autonomous self‐healing multi‐layered patch inspired by octopus, which possess robust adhesion properties dry/underwater conditions. To implement autonomously octopus‐inspired architectures, a dynamic...
Recently, three-dimensional (3D) porous foams have been studied, but further improvement in nanoscale surface area and stretchability is required for electronic energy applications. Herein, a general strategy reported to form tailored wrinkling structure on strut surfaces inside 3D polydimethylsiloxane (PDMS) polymeric foam. Controlled wrinkles are created the struts of foam through an oxygen plasma treatment bilayer PDMS uniaxially prestretched foam, followed by relaxation. After 1 h...
Colloidal particles are essential materials for modern inkjet printing and coating. Here we demonstrate a versatile method to achieve hexagonal deposits of colloidal through droplet evaporation on micropillar arrays. We identify how fluids turn into during with x-ray tomography. Interestingly, evaporation-driven quite crack-free uniform. attribute deposit shape control local contact line pinning by geometric constraints This deposition strategy offers feasibility high-quality uniform...
In article number 1807614, Changhyun Pang and co-workers report highly air-permeable, water-drainable, reusable skin patches with enhanced omnidirectional peel resistance pulling adhesion, inspired by the toe pads of tree frogs convex cups in suckers octopi. The patch can be utilized as flexible electrodes coating reduced graphene oxides to monitor electrocardiography signals without delamination on sweaty even flowing water conditions.
3D Electrical Adhesive In article number 2107285, Min-Seok Kim, Changhyun Pang, and co-workers report a highly skin-adaptive, sweat-drainable patch with an isotropically stretchable durable nanotube-implanted electrode via selective-transfer technique for multiplexed bioelectronics. Inspired by the wrinkled suction cups in forelegs of diving beetles, water-repellent adhesive can stably monitor multiple biosignals (electrocardiography skin temperature) without delamination on sweaty even...