Bimetallic-MOF Tunable Conductive Hydrogels to Unleash High Stretchability and Sensitivity for Highly Responsive Flexible Sensors and Artificial Skin Applications

双金属片 自愈水凝胶 材料科学 导电体 纳米技术 灵敏度(控制系统) 复合材料 工程类 电子工程 高分子化学 金属 冶金
作者
Mansoor Khan,Luqman Ali Shah,Hifsa Hifsa,Hyeong-Min Yoo,Dong-Jun Kwon
出处
期刊:ACS applied polymer materials [American Chemical Society]
卷期号:6 (12): 7288-7300 被引量:8
标识
DOI:10.1021/acsapm.4c01283
摘要

Metal–organic frameworks (MOFs) are widely applied in various fields, including energy storage, drug delivery, wastewater treatment, and much more. However, their use in hydrogels is limited due to their low dispersion which causes agglomeration in the hydrogel network and many properties of hydrogels are sacrifices. Similarly, conductive hydrogels have emerged as a promising material for skin-like sensors due to their excellent biocompatibility and mechanical flexibility. However, like MOFs, hydrogels also face challenges such as limited stretchability, low toughness, and susceptibility to fatigue, resulting in a low sensing range and large response time-reduced durability of the sensors. In this study, a highly stretchable, tough, and antifatigue conductive composite poly(dodecyl methacrylate-acrylamide-2-(acryloyloxy)ethyl trimethylammonium chloride) bimetallic metal–organic framework [p(DA-AM-AETAC)BM-MOF] hydrogel was developed by integrating BM-MOFs into it. To achieve uniform dispersion of BM-MOFs within the hydrogel network, a positively charged surfactant, ethyl hexadecyl dimethylammonium bromide, was used. It facilitates the formation of hydrophobic interactions between the hydrogel matrix and the surface of the BM-MOFs. Furthermore, it can also interact with surfactant and polymer chains through physical interactions, significantly enhancing the mechanical properties of the hydrogel. The resulting BM-MOF-based hydrogels exhibited impressive stretchability (1588%) and toughness (537 kJ m–3), along with exceptional antifatigue properties. Moreover, it demonstrated a high conductivity of 1.3 S/m and high tensile strain sensitivity ranging from 0.5 to 700% with a gauge factor of 14.8 at 700% strain and response–recovery of 195–145 ms. The p(DA-AM-AETAC)BM-MOF hydrogel sensors displayed sensitive, reliable, and repetitive detection of a wide range of human activities, including wrist elbow rotation, finger bending, swallowing motion, speaking, as well as handwriting and drawing. Furthermore, the hydrogels also monitor the pressure and can mimic human skin. This highlights the potential of hydrogels as wearable strain, pressure, and artificial skin sensors for flexible devices.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
LOVEMEVOL发布了新的文献求助10
刚刚
小八路发布了新的文献求助10
1秒前
Ava应助AlvinCZY采纳,获得10
1秒前
ldyyyy完成签到,获得积分10
1秒前
2秒前
2秒前
深情安青应助lk采纳,获得10
2秒前
量子星尘发布了新的文献求助10
2秒前
完美世界应助OK不服气采纳,获得10
3秒前
学时习完成签到 ,获得积分10
3秒前
vivi猫小咪完成签到,获得积分10
3秒前
4秒前
zzzzy完成签到,获得积分10
4秒前
善学以致用应助Perrylin718采纳,获得10
4秒前
88发布了新的文献求助10
5秒前
5秒前
5秒前
今后应助韩躲躲采纳,获得10
6秒前
梧桐雨210发布了新的文献求助10
6秒前
酷酷含桃发布了新的文献求助10
6秒前
hu发布了新的文献求助10
7秒前
香蕉问旋完成签到 ,获得积分10
7秒前
123发布了新的文献求助10
7秒前
8秒前
杜何忧完成签到,获得积分10
8秒前
顾矜应助香菜采纳,获得10
8秒前
大力沛萍完成签到,获得积分10
9秒前
不安豁发布了新的文献求助10
9秒前
调皮尔容完成签到,获得积分10
9秒前
9秒前
9秒前
9秒前
tesla驳回了赘婿应助
10秒前
量子星尘发布了新的文献求助10
10秒前
10秒前
11秒前
11秒前
烟花应助Jennifer采纳,获得10
11秒前
FRANKFANG发布了新的文献求助10
11秒前
高分求助中
Production Logging: Theoretical and Interpretive Elements 2700
Neuromuscular and Electrodiagnostic Medicine Board Review 1000
Statistical Methods for the Social Sciences, Global Edition, 6th edition 600
こんなに痛いのにどうして「なんでもない」と医者にいわれてしまうのでしょうか 510
The Insulin Resistance Epidemic: Uncovering the Root Cause of Chronic Disease  500
Walter Gilbert: Selected Works 500
An Annotated Checklist of Dinosaur Species by Continent 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 物理 生物化学 纳米技术 计算机科学 化学工程 内科学 复合材料 物理化学 电极 遗传学 量子力学 基因 冶金 催化作用
热门帖子
关注 科研通微信公众号,转发送积分 3662771
求助须知:如何正确求助?哪些是违规求助? 3223591
关于积分的说明 9752272
捐赠科研通 2933546
什么是DOI,文献DOI怎么找? 1606137
邀请新用户注册赠送积分活动 758279
科研通“疑难数据库(出版商)”最低求助积分说明 734771