التفاصيل البيبلوغرافية
| العنوان: |
纳米银/纳米纤维素复合抗菌应变响应性 水凝胶. (Chinese) |
| Alternate Title: |
Silver nanoparticle/nanocellulose composites antibacterial strain-responsive hydrogels. (English) |
| المؤلفون: |
王钦雯, 王雯君, 陈玟锦, 唐爱民 |
| المصدر: |
Acta Materiae Compositae Sinica; Oct2024, Vol. 41 Issue 10, p5417-5428, 12p |
| مصطلحات موضوعية: |
SILVER nanoparticles, HYDROGELS, POLYACRYLAMIDE, SUBSTRATES (Materials science), BIOSENSORS, TANNINS |
| Abstract (English): |
The antibacterial and conductive hydrogels based on silver nanoparticles (AgNPs) have important applications in wearable devices, electronic skin, biosensors, and other areas, and their green manufacturing is currently the focus of much research. Nanocellulose (CNF) has attracted more attention relating to the preparation and application of the smart hydrogels due to its unique physico-chemical properties. When AgNPs are combined with CNF and applied to hydrogels, it is expected to lead to fabrication of antibacterial hydrogels with good mechanical properties, which has guiding significance for the application of hydrogels in the area of intelligent wearable systems. In the present study, Ag-CNF composites were in situ synthesized using 2, 2, 6, 6-tetramethylpiperidoxyl (TEMPO)-oxidized CNF (TOCNF) as a composite substrate and AgNO3 as a source of silver. Ag-CNF and tannic acid (TA) were introduced to polyacrylamide (PAM) hydrogels as functional additives to prepare the AgCNF/PAM hydrogel with good tensile properties, adhesion, antibacterial properties, and UV-shielding properties. The Ag-CNF/PAM hydrogels were then packaged into a strain-responsive sensor. The electrical and sensing properties were studied. Ag-CNF/PAM hydrogels can maintain stable and repeated electrical output under 100% strain cycle and can also be used for wrist motion and head motion detection, which has potential for use as a strainresponsive sensor. [ABSTRACT FROM AUTHOR] |
| Abstract (Chinese): |
基于纳米银颗粒 (AgNPs) 的抗菌导电水凝胶在可穿戴设备, 电子皮肤, 生物传感器等领域有重要应 用, 其绿色制造是目前的研究热点之一. 纳米纤维素 (CNF) 因其独特的物理化学性质, 在智能水凝胶的制备 与应用中得到越来越多的关注. 将 AgNPs 与 CNF 复合并应用到水凝胶中, 有望制备具有良好力学性能的抗 菌水凝胶, 对水凝胶在智能可穿戴领域中的应用具有重要的指导意义. 本研究首先以 2, 2, 6, 6-四甲基哌啶氧 化物 (TEMPO) 氧化纳米纤维素 (TOCNF) 为复合基材, AgNO3 为银源, 通过水热法原位复合制备 Ag-CNF 复 合材料. 随后, 将 Ag-CNF 和 单宁酸 (TA) 作为功能性添加剂引入聚丙烯酰胺 (PAM) 水凝胶中, 制备了具有 良好拉伸性能, 粘附性, 抗菌性和紫外屏蔽性的 Ag-CNF/PAM 水凝胶, 并将 Ag-CNF/PAM 水凝胶封装制备 成应变响应传感设备, 研究其电学和传感性能. Ag-CNF/PAM 水凝胶在 100% 的应变循环下能够保持稳定重 复的电信号输出, 也能够用于手腕动作和头部动作的动作检测, 在应变响应传感领域具有良好的应用前景. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |