Опубликована: Янв. 1, 2025
Язык: Английский
Advanced Functional Materials, Год журнала: 2024, Номер 34(38)
Опубликована: Май 3, 2024
Abstract Real‐time monitoring of respiration plays a very important role in human health assessment, especially and analyzing during exercise sleep. However, traditional humidity sensors still have problems flexibility, sensitivity, durability, so there is an urgent need to develop with high stretchability, environmental resistance as respiratory applications. Here, based on the double network hydrogel structure polyvinyl alcohol polyacrylamide, highly sensitive, stretchable, environmentally stable organic sensor has been manufactured by using synergistic effect lithium chloride MXene. The shows rapid response range 40–85% RH, sensitivity −103.4%/% RH. In addition, it exhibits more than 3000% mechanical strain excellent resistance, which attributed chemical cross‐linking multiple hydroxyl groups glycerol forming rich hydrogen bonds water polymer chains. used for real‐time breathing sleep processes. This work provides new strategy preparing high‐performance, extensibility, stability hydrogel‐based monitoring.
Язык: Английский
Процитировано
69
International Journal of Biological Macromolecules, Год журнала: 2024, Номер 278, С. 134383 - 134383
Опубликована: Авг. 3, 2024
Based on the basic idea of expanding interlayer spacing MXene, utilizing effect gallic acid-modified cellulose nanofibers for rapid moisture separation, flexible sensing and driving composite film with a perfect balance among humidity signal response mechanical properties was prepared. Inspired by stacking autumn fallen leaves, nanofibers-based films were formed self-assembly under vacuum filtration blending MXene. The enhanced (tensile strength 131.1 MPa, puncture load 0.88 N, tearing 165.55 N/mm, elongation at break 16.14 %), (the stable induced voltage 63.7 mV response/recovery time 3.2/5.1 s), (154.7° bending angle) observed. synergistic hydrogen bonds, "pinning effect" arising from side chains, hierarchical layered microstructure contributed to performance. This work exemplifies application green natural product preparing intelligent sensing, wearable devices, biomimetic robots.
Язык: Английский
Процитировано
31
Advanced Functional Materials, Год журнала: 2024, Номер 34(52)
Опубликована: Авг. 1, 2024
Abstract Materials combining stretchability and sensitivity to external stimuli are key for wearable electronics applications enable the emergence of disruptive technologies in biosensing, health monitoring, photodetection human motion recognition. Conductive organohydrogels have gained significant attention due their high cost‐effective preparation. Biopolymers like gelatin alginate offer unique opportunities developing responsive devices, owing biocompatibility toward environmental factors. Here sustainable bio‐inspired method is presented produce alginategelatin transparency visible range, ionic conductivity, stretchability, multiresponsiveness. The controlled alginate's crosslinking with various metal cations Mn 2+ , Cu Fe 3+ Zr 4+ enables modulating conductivity as well finely tuning material's thermal mechanical properties. These show responsiveness temperature (from 10 50 degrees, a 0.19 K −1 ), relative humidity 20 80%, 0.022 RH(%) strain (gauge factor >1.6), enabling real‐time monitoring physiological parameters. Remarkably, they also exhibit photoresponsivity 9.2 µA W under light, feature rarely reported literature. ease chosen sensitivities open perspectives applying these materials stretchable sensors.
Язык: Английский
Процитировано
19
Sensors and Actuators B Chemical, Год журнала: 2024, Номер 422, С. 136605 - 136605
Опубликована: Сен. 7, 2024
Язык: Английский
Процитировано
15
Sensors and Actuators B Chemical, Год журнала: 2024, Номер 418, С. 136316 - 136316
Опубликована: Июль 24, 2024
Язык: Английский
Процитировано
10
Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159480 - 159480
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
2
Sensors and Actuators B Chemical, Год журнала: 2025, Номер 433, С. 137533 - 137533
Опубликована: Март 3, 2025
Язык: Английский
Процитировано
2
Journal of Colloid and Interface Science, Год журнала: 2024, Номер 661, С. 977 - 986
Опубликована: Фев. 5, 2024
In this work, a straightforward method for synthesizing fullerene derivatives with tentacle structures has been explored monitoring environmental humidity, which involves introducing sulfonate onto the fullerenes. The structure and number of polar groups in three determined by series structural tests greatly affect their hydrophilicity morphology, resulting changes humidity sensitive properties. particular, hysteresis response time sensors display great correlation hydrophilicity. C
Язык: Английский
Процитировано
9
Nanomaterials, Год журнала: 2024, Номер 14(5), С. 388 - 388
Опубликована: Фев. 20, 2024
MIL-53(Al) is a metal-organic framework (MOF) with unique properties, including structural flexibility, thermal stability, and luminescence. Its ability to adsorb volatile organic compounds (VOCs) water vapor makes it promising platform for sensing applications. This study investigated the adsorption mechanism of different VOCs, ketones, alcohols, aromatics, molecules, focusing on transformations due pore size variation photoluminescence properties. The reported results assess selectivity towards VOCs provide insights into their fundamental properties potential applications in sensing.
Язык: Английский
Процитировано
9
Results in Engineering, Год журнала: 2024, Номер unknown, С. 103428 - 103428
Опубликована: Ноя. 1, 2024
Язык: Английский
Процитировано
8