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- W4384498204 abstract "Conductive hydrogels have gained increasing attention in the field of wearable smart devices. However, it remains a big challenge to develop a multifunctionally conductive hydrogel in a rapid and facile way. Herein, a conductive tannic acid–iron/poly (acrylic acid) hydrogel was synthesized within 30 s at ambient temperature by the tannic acid–iron (TA@Fe3+)-mediated dynamic catalytic system. The TA@Fe3+ dynamic redox autocatalytic pair could efficiently activate the ammonium persulfate to initiate the free-radical polymerization, allowing the gelation to occur easily and rapidly. The resulting hydrogel exhibited enhanced stretchability (3560%), conductivity (33.58 S/m), and strain sensitivity (gauge factor = 2.11). When damaged, it could be self-healed through the dynamic and reversible coordination bonds between the Fe3+ and COO– groups in the hydrogel network. Interestingly, the resulting hydrogel could act as a strain sensor to monitor various human motions including the huge movement of deformations (knuckle, wrist) and subtle motions (smiling, breathing) in real time due to its enhanced self-adhesion, good conductivity, and improved strain sensitivity. Also, the obtained hydrogel exhibited efficient electromagnetic interference (EMI) shielding performance with an EMI shielding effectiveness value of 24.5 dB in the X-band (8.2–12.4 GHz). Additionally, it displayed antibacterial properties, with the help of the activity of TA." @default.
- W4384498204 created "2023-07-18" @default.
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- W4384498204 date "2023-07-17" @default.
- W4384498204 modified "2023-10-10" @default.
- W4384498204 title "Simple and Rapid Way to a Multifunctionally Conductive Hydrogel for Wearable Strain Sensors" @default.
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- W4384498204 doi "https://doi.org/10.1021/acs.langmuir.3c01068" @default.
- W4384498204 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37460098" @default.
- W4384498204 hasPublicationYear "2023" @default.
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