Applied Thermal Engineering, Год журнала: 2024, Номер 260, С. 124970 - 124970
Опубликована: Ноя. 17, 2024
Язык: Английский
International Journal of Biological Macromolecules, Год журнала: 2024, Номер 260, С. 129600 - 129600
Опубликована: Янв. 23, 2024
Язык: Английский
Процитировано
19
Green Chemistry, Год журнала: 2024, Номер 26(8), С. 4609 - 4621
Опубликована: Янв. 1, 2024
Self-powered polysaccharide-based hydrogels function as recyclable electrolytes and flexible sensing materials.
Язык: Английский
Процитировано
9
Advanced Functional Materials, Год журнала: 2024, Номер 34(48)
Опубликована: Авг. 2, 2024
Abstract Ionogels, recognized for their flexibility and ionic conductivity, show considerable promise across various applications including electronic skins, biomedical electronics, smart robotics. However, the majority of ionogels are plagued by suboptimal mechanical strength, a restricted range operating temperatures, poor recyclability. Here, an acetone‐stimulated supramolecular reinforcement strategy to develop robust environmentally tolerant is introduced. The bio‐based feature firm architecture formed entwining soybean protein molecules around cellulose macromolecular chains. This coiled design, inspired cucumber vines, endows with remarkable tensile strength (>30 MPa), enables them withstand temperature above 85 °C over 15 MPa, maintains notable cold resistance down −20 exceeding 10 MPa. Further, exhibit excellent recyclability, reprocessing capabilities, shape customizability, good biocompatibility, full biodegradability. study provides valuable manipulating conformation create that overcome traditional trade‐offs high environmental tolerance.
Язык: Английский
Процитировано
8
Chemical Engineering Journal, Год журнала: 2024, Номер 497, С. 154970 - 154970
Опубликована: Авг. 23, 2024
Язык: Английский
Процитировано
8
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Авг. 21, 2024
Abstract High‐performance flexible pressure sensors have garnered widespread applications across numerous vital fields, encompassing robotics, artificial intelligence, and brain‐computer interfaces. However, the small compressibility range of materials easy saturation characteristics microstructures greatly limit their practical applications. Therefore, achieving high sensitivity over an extensive remains a challenge. Here, inspired by skin, raised structure with graded features is designed as sensitive layer. A sensor performance manufactured combining iontronic The results indicate that this can stably maintain 161.26 kPa −1 even at 320 kPa. Moreover, also has fast response time recovery 26 85 ms, respectively. As demonstration, these are applied to stiffness recognition, human motion monitoring, control long‐distance four‐wheel vehicles. This work will offer valuable insights serve useful reference for broadened sensing in sensors.
Язык: Английский
Процитировано
6
Advanced Functional Materials, Год журнала: 2024, Номер 35(8)
Опубликована: Сен. 26, 2024
Abstract Fiber‐based thermoelectric (TE) device that can collect waste heat of human body and convert it into electricity is growing fast great significance for sustainable development. Although ionic (i‐TE) ionogels are considered to be the next generation TE materials, construct ionogel fiber with synergistically enhanced mechanical i‐TE performances remains big challenge. Herein, poly(vinylidene fluoride‐co‐hexafluoropropylene)/1‐ethyl‐3‐methylimidazolium dicyanamide/ethanol/NaTFSI/SiO 2 (PH/ED‐E‐Na‐SiO ) ultrahigh Seebeck coefficient 47.5 mV K −1 conductivity 43.7 mS cm constructed by a proposed antisolvent‐doping‐hybrid synergistic strategy. The mainly attributed low crystalline structure improvement in ions dissociation, migration, diffusion difference. corresponding power factor PH/ED‐E‐Na‐SiO film as high 9845.8 µW m −2 , which almost highest value ever reported. Based on this, comparable significantly tensile strength strain (from 327 KPa 47% 17.7 MPa 70% fiber) prepared simple coating process. It weaved wearable generates thermovoltage lights light‐emitting diode (LED) bulb, demonstrating its application potential energy supply device.
Язык: Английский
Процитировано
5
RSC Advances, Год журнала: 2024, Номер 14(9), С. 6292 - 6297
Опубликована: Янв. 1, 2024
The concentration ( c ) dependence of solution R s and diffusion dif resistances solutions containing dissolved Fe 2+ /Fe 3+ is well reproduced by their viscosity η at .
Язык: Английский
Процитировано
4
Research, Год журнала: 2024, Номер 7
Опубликована: Янв. 1, 2024
Achieving rubber-like stretchability in cellulose ionogels presents a substantial challenge due to the intrinsically extended chain configuration of cellulose. Inspired by molecular natural rubber, we address this using cyanoethyl as substitute for 1.5 hydroxyl on D-glucose unit This strategy innovatively triggers transformation molecules into coiled configuration, facilitating creation an ultra-stretchable ionogel free from any petrochemical polymers. The resultant demonstrates mechanical ductility comparable that rubber band, achieving elongation strain nearly 1,000% while maintaining tensile strength up 1.8 MPa and exhibiting biomodulus akin human skin, recorded at 63 kPa. Additionally, stretchable skin-like self-healing behavior, favorable biocompatibility, noteworthy thermoelectric properties, highlighted Seebeck coefficient approximately 68 mV K −1 . study delineates feasible approach developing biomass resources, potentially revolutionizing self-powered electronics integration with tissues skin.
Язык: Английский
Процитировано
4
ACS Nano, Год журнала: 2025, Номер unknown
Опубликована: Янв. 3, 2025
Ionic skin can mimic human to sense both temperature and pressure simultaneously. However, a significant challenge remains in creating precise ionic skins resistant external stimuli interference when subjected pressure. In this study, we present an innovative approach address by introducing highly anisotropic nanofluidic (ANIS) composed of carboxylated cellulose nanofibril (CNF)-reinforced poly(vinyl alcohol) (PVA) nanofibrillar network achieved through straightforward one-step hot drawing method. The inherent nanostructures endowed the ANIS with modulus (20.9 ± 4.9 MPa) comparable that cartilage skin, alongside higher fracture energy (41.4 0.3 kJ/m2) fatigue threshold (1360 J/m2). Incorporating CNF not only improves negative potential but also increases conductivity up 0.001 S/cm, even at very low concentration (1.0 × 10–6 M). Furthermore, exhibits pressure-independent sensitivity due its high deformation-resistant performance. Thus, work introduces facile strategy for fabricating thermosensing properties, promising prospects practical healthcare applications.
Язык: Английский
Процитировано
0
Advanced Engineering Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 16, 2025
Self‐oscillating systems based on active materials offer significant potential for creating autonomous intelligent machines by harnessing environmental energy and enabling self‐regulation. However, most such overlook the viscoelastic behavior of materials, which exhibit both elastic viscous deformation under load, underscoring importance studying these effects system performance. Herein, a liquid crystal elastomer (LCE) spring oscillator is presented its dynamic behaviors are investigated. The governing equations developed linear thermoviscoelastic model. analysis concludes that has supercritical Hopf bifurcation between static mode self‐oscillation mode. Exact expressions amplitude frequency, along with asymptotic analytic solutions, also provided. Additionally, key parameters influencing frequency self‐oscillating examined. Especially, viscoelasticity LCE fiber greatly affects point, amplitude, period oscillator. These results provide convenience guidance various applications, especially in related fields as soft robotics, micromechanical systems, harvesters.
Язык: Английский
Процитировано
0