Nanotechnology, Год журнала: 2024, Номер 36(10), С. 105501 - 105501
Опубликована: Дек. 24, 2024
To advance the industrialization of flexible strain sensors, an innovative sensing fiber was developed through a sophisticated wet spinning process. Silver trifluoroacetate and graphene oxide (GO) were combined with thermoplastic polyurethane (TPU) to prepare fibers via spinning. Ascorbic acid used
Язык: Английский
ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown
Опубликована: Март 8, 2025
Wearable electronics for cardiac monitoring have been widely developed in the field of routine vital sign and arrhythmia determination due to their convenience continuity. However, there are very few reports on demonstration a stretchable multilead electrocardiogram (ECG) patch integrated with myocardial infarction (MI) location capability. Here, we first propose wearable dynamic patch, which can acquire seven-lead ECG signals continuously. A novel bioelectrode is mounted strain-insensitive 100% tensile strain range. Moreover, maintains good adhesion skin at more than 0.4 N/cm. This soft wireless designed long-term, all-round real-time monitoring. For MI classification, machine learning model identification trained accuracy (99.93%) sensitivity (99.98%). In addition, also new framework automated annotation abnormal segments, simultaneously addresses recognition waveforms integration interlead relationships. study contributes realization personalized medical intervention as well early warning MI.
Язык: Английский
Процитировано
1
Polymer science & technology., Год журнала: 2024, Номер unknown
Опубликована: Дек. 12, 2024
Conductive hydrogels have garnered significant attention in the realm of future flexible electronic devices due to their properties such as flexibility, electrical conductivity, frost resistance, and biocompatibility. However, integration numerous functional applications biomedical field still presents notable challenges. In this research, a rigid hard-structured network was formed by cross-linking gallic acid grafted chitosan (CS–GA) tannic (TA) with poly(vinyl alcohol) (PVA) through physical freezing. The noncovalent hydrogen bonding during freezing thawing process facilitated formation microcrystalline domains amorphous hydrogel system. Functional proteins from eggshell membrane were cross-linked tetra-armed poly(ethylene glycol) maleimide (4am-PEG-MAL) via thiol-olefin click chemistry, lysozyme incorporated into an antibacterial component nucleophilic substitution reaction. These chemical methods resulted soft-structured that enhanced mechanical (maximum stress 2.15 MPa elongation 605%). use ionic liquids/ethylene glycol/water (ILs/EG/H2O) ternary solvents instead single solvent not only provided resistance but also imparted excellent conductivity (0.37 ± 0.04 S/m). Notably, organohydrogel showed good antimicrobial biocompatibility effective providing emergency cooling after fireworks burns promoting wet healing broken skin minimize scarring. field, multifunctional can serve wearable device monitor movement amplitude wounds real-time, offering novel approach deep learning-assisted wound healing. nature biological promising applications.
Язык: Английский
Процитировано
4
Biosensors, Год журнала: 2025, Номер 15(3), С. 177 - 177
Опубликована: Март 11, 2025
With the rapid development of wearable technology, multifunctional sensors have demonstrated immense application potential. However, limitations traditional rigid materials restrict flexibility and widespread adoption such sensors. Hydrogels, as flexible materials, provide an effective solution to this challenge due their excellent stretchability, biocompatibility, adaptability. This study developed a sensor based on composite hydrogel polyvinyl alcohol (PVA) sodium alginate (SA), using poly(3,4-ethylenedioxythiophene)/polystyrene sulfonate (PEDOT:PSS) conductive material achieve detection strain, temperature, physiological signals. The features simple fabrication process, low cost, impedance. Experimental results show that prepared exhibits outstanding mechanical properties conductivity, with strength 118.8 kPa, elongation 334%, conductivity 256 mS/m. In strain sensing, demonstrates response minor strains (4%), high sensitivity (gauge factors 0.39 for 0–120% 0.73 120–200% ranges), short time (2.2 s), hysteresis, cyclic stability (over 500 cycles). For temperature achieves sensitivities −27.43 Ω/K (resistance mode) 0.729 mV/K (voltage mode), along stable performance across varying ranges. Furthermore, has been successfully applied monitor human motion (e.g., finger bending, wrist movement) signals electrocardiogram (ECG), electromyogram (EMG), electroencephalogram (EEG), highlighting its significant potential in health monitoring. By employing efficient method, presents high-performance sensor, offering novel insights technical support advancement devices.
Язык: Английский
Процитировано
0
Advanced Sensor Research, Год журнала: 2025, Номер unknown
Опубликована: Апрель 21, 2025
Abstract Temperature sensors play a pivotal role in modern electronics, finding use across broad spectrum of applications. Nonetheless, traditional manufacturing methods for these devices consume substantial energy and materials, their widespread utilization often contributes to electronic waste, presenting significant environmental concerns. In this research, recyclable printed thermocouple temperature are developed that emphasize both cost‐efficiency ecological responsibility. The utilize readily available fillers (i.e., nickel flakes carbon black powders), paving the way scalable production. By incorporating re‐dissolvable polymers as binders, end‐of‐life can be easily disassembled, eliminating need harsh treatment or hazardous chemicals. ferromagnetic enhances straightforward separation different filler components, streamlining recycling workflow. Importantly, gentle conditions preserve functional fillers, preventing degradation oxidation thus enabling reprocessed retain original performance. addition, boast high mechanical flexibility, making them suitable seamless integration into various practical scenarios. All innovations not only reduce economic costs but also align with goals sustainable development, demonstrating promising pathway future sensing technology.
Язык: Английский
Процитировано
0
Composites Communications, Год журнала: 2025, Номер unknown, С. 102491 - 102491
Опубликована: Май 1, 2025
Язык: Английский
Процитировано
0
Measurement, Год журнала: 2024, Номер 239, С. 115482 - 115482
Опубликована: Авг. 19, 2024
Язык: Английский
Процитировано
2
Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 156883 - 156883
Опубликована: Окт. 1, 2024
Язык: Английский
Процитировано
2
Materials, Год журнала: 2024, Номер 17(17), С. 4204 - 4204
Опубликована: Авг. 25, 2024
Stimulus electro-responsive polymer materials can reversibly change their physical or chemical properties under various external stimuli such as temperature, light, force, humidity, pH, and magnetic fields. This review introduces typical conventional stimulus extensively explores novel directions in the field, including multi-stimuli humidity pioneered by our research group. Despite significant advancements materials, ongoing focuses on enhancing efficiency, lifespan, production costs. Interdisciplinary collaboration advanced technologies promise to broaden application scope of these particularly medical environmental protection fields, ultimately benefiting society.
Язык: Английский
Процитировано
0
Nano Trends, Год журнала: 2024, Номер 7, С. 100050 - 100050
Опубликована: Сен. 1, 2024
Although the flourishing of Internet Things and artificial intelligence has accelerated development wearable smart bioelectronics, heavy reliance on external power remains a problem that needs to be solved. Thermoelectric materials have emerged as promising solution, efficiently converting body heat into electrical energy provide stable unrestricted supply for wearables. Moreover, in field thermoelectric biosensing, where flexibility is highly demanded, hydrogels with excellent conductivity, biocompatibility through structural compositional optimization become ideal constructing biosensors meet diverse application bioelectronics. This article systematically reviews latest research progress gels self-powered including principles operation, well preparation, design, hydrogels. The current state gel-based applications fields temperature sensing, strain temperature-strain synergistic respiratory monitoring, sweat analysis are displayed article. Finally, paper summarizes challenges prospects encouraging rapid realization
Язык: Английский
Процитировано
0
Nanotechnology, Год журнала: 2024, Номер 36(10), С. 105501 - 105501
Опубликована: Дек. 24, 2024
To advance the industrialization of flexible strain sensors, an innovative sensing fiber was developed through a sophisticated wet spinning process. Silver trifluoroacetate and graphene oxide (GO) were combined with thermoplastic polyurethane (TPU) to prepare fibers via spinning. Ascorbic acid used
Язык: Английский
Процитировано
0