Surface-initiated photoinduced electron transfer ATRP and mussel-inspired chemistry: Surface engineering of graphene oxide for self-healing hydrogels

Ma, Anyao; Jiang, Chuanjie; Li, Mengnan; Cao, Linlin; Deng, Zhiming; Bai, Liangjiu; Wang, Wenxiang; Wei, Daming

doi:10.1016/j.reactfunctpolym.2020.104547

Cited by 15 publications

(4 citation statements)

References 61 publications

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“…The swelling ratios of pure PAA hydrogel are much higher than those of LMNPs@rGO/PAA, which is attributed to the lower cross-linking density because of the lack of rGO cross-linking point. As for LMNPs@rGO/PAA, the swelling ratio gradually decreases with the increasing of rGO contents which is consistent with the results as many previous literature [45], [46], [47], and the only difference is that the rGO nanosheets not only crosslink the PAA polymer chain via physical crosslinking effect such as hydrogen bonding and chain entanglement but also through coordination bond contributed by LMNPs [48]. To better understand the crosslinking mechanism of rGO nanosheets in the LMNPs@rGO/PAA hydrogel system, cyclic tensile tests are performed.…”

Section: Mechanical Propertiessupporting

confidence: 92%

A multifunctional hydrogel fabricated via ultra-fast polymerization by graphene oxide-adsorbed liquid metal nanodroplets

Zhao

Zhan

et al. 2022

Chemical Engineering Journal

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Section: Mechanical Propertiessupporting

confidence: 92%

A multifunctional hydrogel fabricated via ultra-fast polymerization by graphene oxide-adsorbed liquid metal nanodroplets

Zhao

Zhan

et al. 2022

Chemical Engineering Journal

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“…In Figure 1, the microscopic morphology of nanosheets were observed by SEM. Bare GO was the single layer, overlapped and folded layers of muslin-like surfaces with frayed edges 52 (Figure 1a). In Figure 1b, after the introduction of CTA on the GO surface, the obtained GO@CTA became thickened.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Wearable Flexible Sensors for Human Motion Detection with Self-Healing, Tough Guar Gum-Hydrogels of GO-P4VPBA/PDA Janus Nanosheets

Zhang

Zhao

Gao

et al. 2022

ACS Appl. Polym. Mater.

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Flexible and wearable sensors based on nanocomposite hydrogels have been used to monitor human physiological signals. However, it is still a challenge to develop flexible sensors using self-healing hydrogels with the properties of biocompatibility and flexibility. In this manuscript, Janus nanosheets were implanted into guar gum (GG)/poly(vinyl alcohol) (PVA) 3-dimensional network structure. The obtained flexible sensor with nanocomposite hydrogels had outstanding flexibility, high sensitivity, and excellent durability. In typical oil-in-water (O/W) Pickering emulsion, GO-poly(4-vinylphenylboronic acid)/polydopamine Janus nanosheets (JNs) were surface-initiated with 4-vinylphenylboronic acid (4VPBA) on the side of GO by RAFT polymerization and self-polymeriztion of dopamine (DA) on the other side by mussel-inspired chemistry, respectively. The JNs hydrogels had the preferable mechanical strength (1.0 MPa) and self-healing efficiency (93.1%) in the presence of reversible interaction. The resistive-type hydrogels sensor with these JNs hydrogels exhibited high sensitivity (gauge factor (GF) = 12.5) and antifatigue sensing performance (100% strain, 600 cycles). The sensor could monitor different human movements, which includes both large-scale (wrist bending, elbow bending, and running) and small-scale (cough vibrations, pulse rates, and finger bending) motion precisely. These nanocomposite hydrogels will provide strategies for wearable flexible sensors with superior stability and repeatability.

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“…Applications of nanotechnology-based self-healing systems are less common since the concept of selfhealing is still not widespread in large-scale applications, although it is changing (93). In general, materials with these properties are found only in engineering materials, as they have high costs to be applied in regular applications (94,94,95). Although cheaper self-healing systems in civil construction already exist (Vermeer et al, 2021), this type of application is still relatively unknown.…”

Section: Healing Propertiesmentioning

confidence: 99%

Nanotechnology in Concrete: a Bibliometric Review

Costa¹,

Gomes²,

Thomas³

et al. 2021

BJEDIS

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This review intends to show how nanotechnology is currently being applied in concrete. Both organic and inorganic species can be used as nanoagents, producing materials with improved properties, promoting economic and environmental gains by extending the materials' lifetime. Thus, this paper covers nanotechnology applications to improve mechanical, thermal, and corrosive properties of concrete and shows bibliometric results, proving the increase of interest in these fields. Results have shown that organic agents are more commonly used than inorganic ones, and that nanotechnology is applied mainly to improve mechanical and thermal properties.

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Surface-initiated photoinduced electron transfer ATRP and mussel-inspired chemistry: Surface engineering of graphene oxide for self-healing hydrogels

Cited by 15 publications

References 61 publications

A multifunctional hydrogel fabricated via ultra-fast polymerization by graphene oxide-adsorbed liquid metal nanodroplets

A multifunctional hydrogel fabricated via ultra-fast polymerization by graphene oxide-adsorbed liquid metal nanodroplets

Wearable Flexible Sensors for Human Motion Detection with Self-Healing, Tough Guar Gum-Hydrogels of GO-P4VPBA/PDA Janus Nanosheets

Nanotechnology in Concrete: a Bibliometric Review

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