Biocompatible, self-healing, highly stretchable polyacrylic acid/reduced graphene oxide nanocomposite hydrogel sensors via mussel-inspired chemistry

Jing, Xin; Mi, Hao‐Yang; Peng, Xiangfang; Turng, Lih‐Sheng

doi:10.1016/j.carbon.2018.04.065

Cited by 311 publications

(181 citation statements)

References 53 publications

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“…The high performance came from the astronomical synergy between the Fe 3+ cations (as the crosslinker) and the GO nanosheets (as the cross‐linking sites and the reinforcer) offering excellent mechanical properties . Also, this cation coordination strategy was applied to many other polymer‐based gel‐like materials including alginate, resorcinol–formaldehyde, poly(acrylamide‐ co ‐acrylic acid), which were incorporated with graphene and its derivatives …”

Section: Coordination‐driven Assembly Based On Graphene and Its Derivmentioning

confidence: 99%

Coordination‐Driven Hierarchical Assembly of Hybrid Nanostructures Based on 2D Materials

Liu

Zhong

Xie

2019

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nanobelts), 2D materials exhibit exceptional physical properties including large theoretical surface area, tunable electronic properties, high optical transparency, and excellent mechanical properties. [2] However, the strong re-stacking tendency of 2D materials caused by van der Waals interaction may result in serious loss of surface area, which inevitably weakens their unique properties. Besides, 2D materials always show intrinsic deficiencies for specific applications, despite the merits mentioned above. As a typical example, TMDs possess high theoretical specific capacities for lithium-ion storage but exhibit unsatisfied cyclability and rate capability in practice, because of their aggregation, low conductivity as well as huge volume expansion during lithium-ion insertion/extraction. [3] One effective way to solve these problems is to construct hybrid nanostructures based on 2D materials. [4][5][6][7][8] Hybrid nanostructures, as a class of composite materials, are composed of two or more nanostructured building blocks. [9,10] Hybrid nanostructures not only can energetically combine the intriguing merits and overwhelm the deficiencies of each building block, but also may generate new functions and properties. [3][4][5][6][7][8][11][12][13] These advantages make hybrid nanostructures based on 2D materials highly promising for practical applications with high performance. [14][15][16][17][18] Regarding the multicomponent composition of hybrid nanostructures, the interfacial interaction between the building blocks lays the foundation for structural and morphological stability, thereby influencing the functions and properties of the resulting hybrid nanostructures. [19][20][21][22] In this sense, the rational design and construction of reliable interfacial interaction for hybrid nanostructures are not only important for achieving improved performance, but also critical for understanding the fundamentals of structureproperty relationship.Generally, there are five types of interfacial interactions, i.e., covalent bond, coordination bond, hydrogen bond, π-π interaction, and electrostatic interaction. [19][20][21][22] Covalent bond and coordination bond are much stronger than the other three in terms of bond energy, so the former two are more favorable for constructing hybrid nanostructures with reliable interfacial interaction. [19] However, most 2D materials are chemically inert, which means the covalent modification is not suitable for them. Alternatively, there are coordination atoms in most of 2D materials and their derivatives, and hence coordination 2D materials have received tremendous scientific and engineering interest due to their remarkable properties and broad-ranging applications such as energy storage and conversion, catalysis, biomedicine, electronics, and so forth. To further enhance their performance and endow them with new functions, 2D materials are proposed to hybridize with other nanostructured building blocks, resulting in hybrid nanostructures with various morphologies and structures. The prop...

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Section: Coordination‐driven Assembly Based On Graphene and Its Derivmentioning

confidence: 99%

Coordination‐Driven Hierarchical Assembly of Hybrid Nanostructures Based on 2D Materials

Liu

Zhong

Xie

2019

Small

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“…Moreover, transmittance is a very important factor for wearable electronics with visualization requirement . However, remarkable transparency is still difficult to acquire for hydrogel‐based strain sensors due to the joining of conductive materials, such as graphene, CNTs, polypyrrole, and polyaniline …”

Section: Introductionmentioning

confidence: 99%

Highly Stretchable, Transparent, and Bio‐Friendly Strain Sensor Based on Self‐Recovery Ionic‐Covalent Hydrogels for Human Motion Monitoring

Sun

Zhou

et al. 2019

Macro Materials & Eng

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Stretchable, flexible, and strain‐sensitive hydrogels have gained tremendous attention due to their potential application in health monitoring devices and artificial intelligence. Nevertheless, it is still a huge challenge to develop an integrated strain sensor with excellent mechanical properties, broad sensing range, high transparency, biocompatibility, and self‐recovery. Herein, a simple paradigm of stretchable strain sensor based on multifunctional hydrogels is prepared by constructing synergistic effects among polyacrylamide (PAM), biocompatible macromolecule sodium alginate (SA), and Ca ion in covalently and ionically crosslinked networks. Under large deformation, the dynamic SA‐Ca2+ bonds effectively dissipate energy, serving as sacrificial bonds, while the PAM chains bridge the crack and stabilize the network, endowing hydrogels with outstanding mechanical performances, for instance, high stretchability and compressibility, as well as excellent self‐recovery performance. The hydrogel is assembled to be a transparent and wearable strain sensor, which has good sensitivity and very wide sensing range (0–1700%), and can precisely detect dynamic strains, including both low and high strains (20–800% strain). It also exhibits fast response time (800 ms) and long‐time stability (200 cycles). The sensor can monitor and distinguish complicated human motions, opening up a new route for broad potential applications of eco‐friendly flexible strain‐sensing devices.

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“…Three methods were usually employed to fabricate rGO containing nanocomposite hydrogels in literature. The first method is first preparing stable rGO water solution from GO, and then preparing rGO containing hydrogels by in situ polymerization or solution blending . Due to the low water solubility of rGO, the preparation of stable rGO water solution is challenging but crucial to the homogeneous dispersion of rGO in hydrogel matrix.…”

Section: Introductionmentioning

confidence: 99%

“…Since the remaining oxygenated groups in rGO is scarce, the interfacial interaction between rGO and hydrogel matrix is usually not strong enough, leading to relatively low mechanical strength of rGO containing hydrogel . Recently, Jing et al . fabricated a tough, self‐healable, and electrically conductive rGO containing hydrogel by first preparing polydopamine grafted rGO, and then applying in situ polymerization of acrylic acid in the presence of chemical crosslinkers (MBAA) and physical crosslinkers (FeCl 3 ).…”

Section: Introductionmentioning

confidence: 99%

Fabrication of tough, self‐recoverable, and electrically conductive hydrogels byin situreduction of poly(acrylic acid) grafted graphene oxide in polyacrylamide hydrogel matrix

Wang

et al. 2019

J of Applied Polymer Sci

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Developing electrically conductive hydrogels with good electronic properties and excellent mechanical performance is significant to their potential applications. In this article, we present a strategy to fabricate tough, self‐recoverable and electrically conductive hydrogels containing reduced graphene oxide (rGO). Poly(acrylic acid) grafted graphene oxide (GO‐g‐PAA) was synthesized and incorporated into chemically crosslinked polyacrylamide (PAM) networks to obtain GO‐g‐PAA/PAM hydrogels, which were further treated with ascorbic acid solution at ambient temperature to give rGO‐g‐PAA/PAM hydrogels. The interfacial interaction between GO/rGO and hydrogel matrix was improved by reversible hydrogen bonds between the grafted PAA chains and PAM matrix. Consequently, both GO‐g‐PAA/PAM and rGO‐g‐PAA/PAM hydrogels exhibited improved tensile properties, excellent energy dissipation, and rapid self‐recovery. The in situ chemical reduction of GO‐g‐PAA in hydrogel matrix endowed rGO‐g‐PAA/PAM hydrogels with satisfactory electrical conductivity and obvious resistance change upon stretching. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48781.

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Biocompatible, self-healing, highly stretchable polyacrylic acid/reduced graphene oxide nanocomposite hydrogel sensors via mussel-inspired chemistry

Cited by 311 publications

References 53 publications

Coordination‐Driven Hierarchical Assembly of Hybrid Nanostructures Based on 2D Materials

Coordination‐Driven Hierarchical Assembly of Hybrid Nanostructures Based on 2D Materials

Highly Stretchable, Transparent, and Bio‐Friendly Strain Sensor Based on Self‐Recovery Ionic‐Covalent Hydrogels for Human Motion Monitoring

Fabrication of tough, self‐recoverable, and electrically conductive hydrogels byin situreduction of poly(acrylic acid) grafted graphene oxide in polyacrylamide hydrogel matrix

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