Cellulose nanocrystal mediated fast self-healing and shape memory conductive hydrogel for wearable strain sensors

Xiao, Guifa; Wang, Ying; Zhang, Hui; Zhu, Zhaodong; Fu, Shiyu

doi:10.1016/j.ijbiomac.2020.12.156

Cited by 59 publications

(31 citation statements)

References 50 publications

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“…Blending with various polymers and self-assembly after modification are the two most common ways of preparing carbon-based conductive hydrogels [ 88 ]. Cellulose nanocrystals were grafted in to phenylboronic acid (CNCs-ABA) and multi-walled carbon nanotubes (MWCNTs) to develop electrical conductivity [ 97 ]. Another illustration is the post-polymerization of MWCNTs, with graphene powder (r-GOx) to adhere to pure regenerated cellulose-based electrolyte membranes [ 79 ].…”

Section: Incorporation Of Conductive Materials On To Cellulose Hydrogelsmentioning

confidence: 99%

Cellulosic-Based Conductive Hydrogels for Electro-Active Tissues: A Review Summary

Gebeyehu

Sui

Adamu

et al. 2022

Gels

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The use of hydrogel in tissue engineering is not entirely new. In the last six decades, researchers have used hydrogel to develop artificial organs and tissue for the diagnosis of real-life problems and research purposes. Trial and error dominated the first forty years of tissue generation. Nowadays, biomaterials research is constantly progressing in the direction of new materials with expanded capabilities to better meet the current needs. Knowing the biological phenomenon at the interaction among materials and the human body has promoted the development of smart bio-inert and bio-active polymeric materials or devices as a result of vigorous and consistent research. Hydrogels can be tailored to contain properties such as softness, porosity, adequate strength, biodegradability, and a suitable surface for adhesion; they are ideal for use as a scaffold to provide support for cellular attachment and control tissue shapes. Perhaps electrical conductivity in hydrogel polymers promotes the interaction of electrical signals among artificial neurons and simulates the physiological microenvironment of electro-active tissues. This paper presents a review of the current state-of-the-art related to the complete process of conductive hydrogel manufacturing for tissue engineering from cellulosic materials. The essential properties required by hydrogel for electro-active-tissue regeneration are explored after a short overview of hydrogel classification and manufacturing methods. To prepare hydrogel from cellulose, the base material, cellulose, is first synthesized from plant fibers or generated from bacteria, fungi, or animals. The natural chemistry of cellulose and its derivatives in the fabrication of hydrogels is briefly discussed. Thereafter, the current scenario and latest developments of cellulose-based conductive hydrogels for tissue engineering are reviewed with an illustration from the literature. Finally, the pro and cons of conductive hydrogels for tissue engineering are indicated.

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Section: Incorporation Of Conductive Materials On To Cellulose Hydrogelsmentioning

confidence: 99%

Cellulosic-Based Conductive Hydrogels for Electro-Active Tissues: A Review Summary

Gebeyehu

Sui

Adamu

et al. 2022

Gels

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Section: Shape-memory and Self-healing Materialsmentioning

confidence: 99%

“…Shape-memory and self-healing polymers have a wide range of applications in wearable electronic sensors, , coating materials, , and capacitor materials due to their programmable shape control properties as well as self-healing properties. Pu et al prepared a flexible conductive complex based on polyurethane with DA bonds and carbon nanotubes.…”

Section: The Applications Of the Shape-memory And Self-healing Materialsmentioning

confidence: 99%

Shape-Memory and Self-Healing Polymers Based on Dynamic Covalent Bonds and Dynamic Noncovalent Interactions: Synthesis, Mechanism, and Application

Guo

2021

ACS Appl. Bio Mater.

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Shape-memory and self-healing polymers have been a hotspot of research in the field of smart polymers in the past decade. Under external stimulation, shape-memory and self-healing polymers can complete programed shape transformation, and they can spontaneously repair damage, thereby extending the life of the materials. In this review, we focus on the progress in polymers with shape-memory and self-healing properties in the past decade. The physical or chemical changes in the materials during the occurrence of shape memory as well as self-healing were analyzed based on the polymer molecular structure. We classified the polymers and discussed the preparation methods for shape-memory and self-healing polymers based on the dynamic interactions which can make the polymers exhibit self-healing properties including dynamic covalent bonds (DA reaction, disulfide exchange reaction, imine exchange reaction, alkoxyamine exchange reaction, and boronic acid ester exchange reaction) and dynamic noncovalent interactions (crystallization, hydrogen bonding, ionic interaction, metal coordination interaction, host–guest interactions, and hydrophobic interactions) and their corresponding triggering conditions. In addition, we discussed the advantages and the mechanism that the shape-memory property promotes self-healing in polymers, as well as the future trends in shape-memory and self-healing polymers.

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“…Fibrous components are very attractive for wearable electronics as mentioned above. Addition of nanocellulose fibers was reported as a useful strategy to improve the mechanical properties of CNT-polymer hydrogel strain sensors for potential applications in wearable electronics and artificial skin development [ 144 , 162 ]. Wet-spinning was used to prepare conductive microfibers from crosslinking of hyaluronic acid with CNTs, with good mechanical properties, electroactivity, and biocompatibility as revealed through implantation in vivo [ 156 ].…”

Section: Recent Advancements On Hydrogels With Carbon Nanomaterials For Medicinementioning

confidence: 99%

Smart Hydrogels Meet Carbon Nanomaterials for New Frontiers in Medicine

2021

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Carbon nanomaterials include diverse structures and morphologies, such as fullerenes, nano-onions, nanodots, nanodiamonds, nanohorns, nanotubes, and graphene-based materials. They have attracted great interest in medicine for their high innovative potential, owing to their unique electronic and mechanical properties. In this review, we describe the most recent advancements in their inclusion in hydrogels to yield smart systems that can respond to a variety of stimuli. In particular, we focus on graphene and carbon nanotubes, for applications that span from sensing and wearable electronics to drug delivery and tissue engineering.

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Cellulose nanocrystal mediated fast self-healing and shape memory conductive hydrogel for wearable strain sensors

Cited by 59 publications

References 50 publications

Cellulosic-Based Conductive Hydrogels for Electro-Active Tissues: A Review Summary

Cellulosic-Based Conductive Hydrogels for Electro-Active Tissues: A Review Summary

Shape-Memory and Self-Healing Polymers Based on Dynamic Covalent Bonds and Dynamic Noncovalent Interactions: Synthesis, Mechanism, and Application

Smart Hydrogels Meet Carbon Nanomaterials for New Frontiers in Medicine

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