A5036666951- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Polydiacetylene-based materials and applications
- Tactile and Sensory Interactions
- Nanomaterials and Printing Technologies
- Supercapacitor Materials and Fabrication
- Material Selection and Properties
- Photoreceptor and optogenetics research
- Advanced Materials and Mechanics
- Metal Forming Simulation Techniques
- Gas Sensing Nanomaterials and Sensors
- Dielectric materials and actuators
- Photochromic and Fluorescence Chemistry
- Muscle activation and electromyography studies
- Organic Light-Emitting Diodes Research
- Catalysis and Oxidation Reactions
- Pigment Synthesis and Properties
- Transition Metal Oxide Nanomaterials
- Geotechnical and construction materials studies
- Modular Robots and Swarm Intelligence
Pukyong National University
2021-2024
Stretchable sensors based on conductive hydrogels have attracted considerable attention for wearable electronics. However, their practical applications been limited by the low sensitivity, high hysteresis, and long response times of hydrogels. In this study, we developed high-performance poly(vinyl alcohol) (PVA)/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) post-treated with NaCl, which showed excellent mechanical properties, fast electrical response, ultralow...
Skin-attachable conductive materials have attracted significant attention for use in wearable devices and physiological monitoring applications. Soft, skin-like films must excellent mechanical electrical characteristics with on-skin conformability, stretchability, robustness to detect body motion biological signals. In this study, a conductive, stretchable, hydro-biodegradable, highly robust cellulose/poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) hybrid film is...
This study presents a method to prepare stretchable, conductive, water-permeable, and recyclable hybrid films using hydroxyethyl cellulose PEDOT:PSS for eco-friendly sensors, with high sensitivity, low power consumption, hysteresis.
Abstract Stretchable organic electronics open opportunities for novel applications in next‐generation intelligent electronics, such as human‐friendly, skin‐attachable, and implantable devices. transparent electrodes with appropriate electrical, mechanical, optical properties well high conformability to curved surfaces human skin are key components of wearable Herein, a silver nanowire (AgNW)‐embedded chitosan biopolymer hybrid film is presented high‐performance stretchable electrode. The...
Photochromic materials have attracted considerable interest because of their ability to undergo reversible color switching. We report highly conductive and flexible spiropyran-embedded cellulose films with multiple optical electrical functionalities, showing negative photo- thermochromism. Combining silver nanowires polymer cellulose/spiropyran achieves a very low sheet resistance 6.7 ohm/sq. The optimized show outstanding mechanical stability negligible loss (resistance change < 2%) after...
Conductive composite materials have attracted considerable interest of researchers for application in stretchable sensors wearable health monitoring. In this study, highly and conductive films based on carboxymethyl cellulose (CMC)-poly (3,4-ethylenedioxythiopehe):poly (styrenesulfonate) (PEDOT:PSS) (CMC-PEDOT:PSS) were fabricated. The achieved excellent electrical mechanical properties by optimizing the lab-synthesized PEDOT:PSS, dimethyl sulfoxide, glycerol content CMC matrix. optimized...
Soft, stretchable, conductive thin films have propelled to the forefront of applications in stretchable sensors for on-skin health monitoring. Stretchable require high conformability, stretchability, and mechanical/chemical stability when integrated into skin. Here, we present a highly conductive, transparent natural rubber/silver nanowire (AgNW)/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) composite film. Overcoating PEDOT:PSS layer results outstanding mechanical...
Stretchable on-skin sensors provide multifunctional sensing in healthcare monitoring; however, it is challenging to develop cost-effective sensor materials with high stretchability, biocompatibility, mechanical robustness, and sensitivity. conductive polymers have been extensively studied as a promising material for strain owing their excellent sensitivity, durability. We demonstrate biocompatible based on highly film consisting of lab-synthesized polymer,...
Poros berfungsi untuk meneruskan tenaga baik berupa puntiran, torsi maupun bending dari suatu bagian ke yang lain. Akibatnya poros sering mengalami kegagalan dalam operasinya. Tugas akhir ini bertujuan mengestimasi usia siklus dengan mempertimbangkan perhitungan faktor intensitas tegangan retak semi elliptical diaplikasikan displacement. Analisa metode elemen hingga opsi smart crack growth ANSYS 19.1 melakukan simulasi perambatan kemudian didapatkan nilai variasi panjang dan jenis material....
Wearable sensors have attracted significant attention for personal healthcare and human motion monitoring in recent years. In this study, a stretchable robust sensor was fabricated by depositing silver nanowires (AgNWs) on interface-functionalized wavy polydimethylsiloxane (PDMS) substrates using an all-solution process. The interfacial adhesion between the AgNWs significantly improved introducing surface modifier, ethanolamine. Stretchable films with planar structure exhibited two-fold...
Skin-attachable conductive materials have attracted significant attention for use in wearable devices and physiological monitoring applications. Soft, skin-like films must excellent mechanical electrical characteristics with on-skin conformability, stretchability, robustness to detect body motion biological signals. In this study, a conductive, stretchable, hydro-biodegradable, highly robust cellulose/poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) hybrid film is...