Facile preparation and high performance of wearable strain sensors based on ionically cross-linked composite hydrogels

Bai, Jiahui; Wang, Ran; Ju, Mingxi; Zhou, Jingxin; Zhang, Lexin; Jiao, Tifeng

doi:10.1007/s40843-020-1507-0

Cited by 115 publications

(53 citation statements)

References 43 publications

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“…Notably, to endow the aerated maltose syrup with ionic conductivity, we introduced ca. 2 wt% NaCl by kneading, similar to those that impart free ions to the hydrogel-based ionic sensors [41,42]. In Fig.…”

Section: Aerated Maltose Syrup-based Skin-like Iontronicsmentioning

confidence: 80%

Engineering “JiaoJiao” (maltose syrup) with chopsticks: From traditional Chinese sweet food to skin-like iontronics

Huang

2021

Sci. China Mater.

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The advancement of technology has had a profound impact on all areas of life, with an ever more intimate integration of the digital and biological spheres, but it may also be accompanied by an environmental crisis caused by the abuse of large quantities of electronics and petrochemicals. Next-generation "green" electronics or iontronics with high biocompatibility, biodegradation, low cost and mechanical compliance promise to mitigate these adverse effects, but are often limited by the finite choices of materials and strategies. Herein, maltose syrup, a traditional water-dissolvable saccharide food called "JiaoJiao" in Chinese, is engineered to replace unsustainable conductive components of current electronic devices. After churning and pulling with two chopsticks, known as aeration, the aerated maltose syrup has optimized viscoelasticity, mechanical adaptation, robustness, remodeling and self-healing capability, yet with transient behavior. Moreover, the structural and viscoelastic evolution during aeration is also analyzed to maximize the contribution from structures. As a proof-of-concept, a type of "green" skinlike iontronics is prepared, which exhibits reliable strain sensing ability and is subsequently applied for intelligent information encryption and transmission based on a novel concept of sending Morse code. This work greatly extends the current material choice and is expected to shed light on the development of a sustainable future.

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Section: Aerated Maltose Syrup-based Skin-like Iontronicsmentioning

confidence: 80%

Engineering “JiaoJiao” (maltose syrup) with chopsticks: From traditional Chinese sweet food to skin-like iontronics

Huang

2021

Sci. China Mater.

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“…The solution that reached adsorption equilibrium was irradiated with an ultraviolet curing machine for 5 min to measure the absorbance of the solution. [ 30–32 ] The degradation rate can be calculated by the following formula:

\begin{matrix} η = \frac{A_{0} - A_{1}}{A_{0}} \end{matrix}

where η represents the degradation rate, %, A 0 represents the absorbance of MO before light, and A 1 represents the absorbance of MO after a period of light.…”

Section: Resultsmentioning

confidence: 99%

Facile Preparation and Excellent Ultraviolet Shielding Application of Polyurethane‐TiO₂ Composite Microcapsules

Hong

Wang

et al. 2020

Part & Part Syst Charact

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In this work, butyl stearate, isophorone diisocyanate, and glycerol are used to prepare reticulated polyurethane microcapsules using interfacial polymerization. In addition, anatase nano‐TiO2 is added to prepare TiO2‐polyurethane phase change microcapsules during the polymerization process. Polarized light microscope, scanning electron microscope, Fourier‐transform infrared spectroscopy, thermogravimetric, differential scanning calorimeter, and other methods demonstrate the successful preparation of microcapsules, and microcapsules with different TiO2 content have differences in morphology and performance. It is worth noting that the addition of TiO2 enhances the thermal stability and mechanical strength of the prepared composite microcapsules. In addition, TiO2 particles allow the microcapsules to have photocatalytic properties and ultraviolet shielding properties, and the prepared TiO2‐polyurethane composite capsules show good catalytic degradation properties for methyl orange solution. Moreover, the ultraviolet absorption performance of the TiO2‐polyurethane composite microcapsule coating is tested, and the results show that the strength of ultraviolet light is weakened after passing through the coating, indicating that the composite microcapsule can enhance the UV resistance of the coating. This work shows the preparation of multifunctional microcapsules and their potential applications in photocatalysis and UV resistance.

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“…Due to its excellent self-healing function, fluorescent hydrogels can also be used as medical excipients in biomedicine [69,70]. In a word, the function of fluorescent hydrogel is reflected in many aspects, and there will be more room for further application in the future [71][72][73][74][75][76][77].…”

Section: Other Applicationsmentioning

confidence: 99%

Research Progress Review of Preparation and Applications of Fluorescent Hydrogels

Wang

Qian

et al. 2020

Journal of Chemistry

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The fluorescent gel with good flexibility and biocompatibility has attracted more and more attention due to its excellent optical properties. In this paper, the research progresses in preparation methods and applications of fluorescent gels are reviewed. In addition, the preparation methods of self-assembly and polymerization of fluorescent gel are also introduced. In this paper, it should be noted that some outstanding research about the fluorescent gels used in sensors, bio-imaging probes, drug delivery, and other application fields is summarized. This work provides useful reference information for further exploration and study of fluorescent hydrogels.

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Facile preparation and high performance of wearable strain sensors based on ionically cross-linked composite hydrogels

Cited by 115 publications

References 43 publications

Engineering “JiaoJiao” (maltose syrup) with chopsticks: From traditional Chinese sweet food to skin-like iontronics

Engineering “JiaoJiao” (maltose syrup) with chopsticks: From traditional Chinese sweet food to skin-like iontronics

Facile Preparation and Excellent Ultraviolet Shielding Application of Polyurethane‐TiO₂ Composite Microcapsules

Research Progress Review of Preparation and Applications of Fluorescent Hydrogels

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Facile preparation and high performance of wearable strain sensors based on ionically cross-linked composite hydrogels

Cited by 115 publications

References 43 publications

Engineering “JiaoJiao” (maltose syrup) with chopsticks: From traditional Chinese sweet food to skin-like iontronics

Engineering “JiaoJiao” (maltose syrup) with chopsticks: From traditional Chinese sweet food to skin-like iontronics

Facile Preparation and Excellent Ultraviolet Shielding Application of Polyurethane‐TiO2 Composite Microcapsules

Research Progress Review of Preparation and Applications of Fluorescent Hydrogels

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Facile Preparation and Excellent Ultraviolet Shielding Application of Polyurethane‐TiO₂ Composite Microcapsules