Mechanical strong stretchable conductive multi-stimuli-responsive nanocomposite double network hydrogel as biosensor and actuator

Chen, Yang; Wu, Wenwen; Yu, Junrong; Wang, Yan; Zhu, Jing; Hu, Zuming

doi:10.1080/09205063.2020.1775760

Cited by 23 publications

(9 citation statements)

References 54 publications

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“…It is the composition of hydrogel constituent materials with or without modification and the incorporation of nanostructures in the hydrogels. These construction strategies improve properties (electrical, mechanical, surface, biocompatibility, and biodegradability) for wound-healing applications [61][62][63][64][65].…”

Section: Development Of Cnt-based Conductive Hydrogelsmentioning

confidence: 99%

Carbon Nanotubes-Based Hydrogels for Bacterial Eradiation and Wound-Healing Applications

et al. 2021

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Biocompatible nanomaterials have attracted enormous interest for biomedical applications. Carbonaceous materials, including carbon nanotubes (CNTs), have been widely explored in wound healing and other applications because of their superior physicochemical and potential biomedical properties to the nanoscale level. CNTs-based hydrogels are widely used for wound-healing and antibacterial applications. CNTs-based materials exhibited improved antimicrobial, antibacterial, adhesive, antioxidants, and mechanical properties, which are beneficial for the wound-healing process. This review concisely discussed the preparation of CNTs-based hydrogels and their antibacterial and wound-healing applications. The conductive potential of CNTs and their derivatives is discussed. It has been observed that the conductivity of CNTs is profoundly affected by their structure, temperature, and functionalization. CNTs properties can be easily modified by surface functionalization. CNTs-based composite hydrogels demonstrated superior antibacterial potential to corresponding pure polymer hydrogels. The accelerated wound healing was observed with CNTs-based hydrogels.

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Section: Development Of Cnt-based Conductive Hydrogelsmentioning

confidence: 99%

Carbon Nanotubes-Based Hydrogels for Bacterial Eradiation and Wound-Healing Applications

et al. 2021

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“…One current area of study in this context is the development of stimuli-responsive hydrogels. The interest results from their “smartness” in terms of deformation in response to external stimuli, such as heat [ 4 , 5 ], near-infrared light [ 6 , 7 ], pH [ 8 , 9 ], electricity [ 10 , 11 ], chemicals [ 12 , 13 ], and also by multiple stimuli at once [ 14 , 15 , 16 , 17 ]. Thermo-responsivity has gained the most attention, perhaps because temperature is most easily varied.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Thermo-Responsive Controllable Shape-Changing Hydrogel

Luo

Pauer

Luinstra

2022

Gels

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Temperature response double network (DN) hydrogels comprising a network formed by polymerization of methacrylic acid (MA) modified PVA, N,N’-methylene bis(acrylamide), N-isopropylacryl amide (NIPAM), and one formed from crystalline polyvinyl alcohol (PVA) are prepared in a 3D printed tailor-made mold. The (PVA-MA)-g-PNIPAAm thermoset intermediate is formed in water by a radical, photo-initiated process, and in the presence of dissolved PVA polymers. A subsequent freezing-thawing sequence induces the crystallization of the PVA network, which forms a second network inside the thermoset NIPAM polymer. The prepared hydrogel is thermoresponsive by the phase transition of PNIPAAm segments (T ≈ 32 °C) and has good mechanical properties (tensile strength 1.23 MPa, compressive strength 1.47 MPa). Thermal cycling between room temperature at 40 or 50 °C shows the product converses from a virgin-state to a steady-state, which most likely involves the reorganization of PVA crystals. The swelling-deswelling cycles remain clear at a length change of about 13%.

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“…Sensors are key ingredients of next-generation electronics in the Internet of Things (IoT) because they contribute to collecting essential signals. The development of various sensors, including photosensors [1][2][3][4], gas sensors [5,6], temperature sensors [7][8][9], and biosensors [10][11][12][13] is extensive, which accelerates innovation in new technologies such as the aforementioned IoT. To realize the desired sensing functions, detection performance, such as high sensitivity, robust immunity to noise, and fast response times, should be comprehensively improved [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Self-Powered Sensors: New Opportunities and Challenges from Two-Dimensional Nanomaterials

Lee

Yoo

2021

Molecules

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Nanomaterials have gained considerable attention over the last decade, finding applications in emerging fields such as wearable sensors, biomedical care, and implantable electronics. However, these applications require miniaturization operating with extremely low power levels to conveniently sense various signals anytime, anywhere, and show the information in various ways. From this perspective, a crucial field is technologies that can harvest energy from the environment as sustainable, self-sufficient, self-powered sensors. Here we revisit recent advances in various self-powered sensors: optical, chemical, biological, medical, and gas. A timely overview is provided of unconventional nanomaterial sensors operated by self-sufficient energy, focusing on the energy source classification and comparisons of studies including self-powered photovoltaic, piezoelectric, triboelectric, and thermoelectric technology. Integration of these self-operating systems and new applications for neuromorphic sensors are also reviewed. Furthermore, this review discusses opportunities and challenges from self-powered nanomaterial sensors with respect to their energy harvesting principles and sensing applications.

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Mechanical strong stretchable conductive multi-stimuli-responsive nanocomposite double network hydrogel as biosensor and actuator

Cited by 23 publications

References 54 publications

Carbon Nanotubes-Based Hydrogels for Bacterial Eradiation and Wound-Healing Applications

Carbon Nanotubes-Based Hydrogels for Bacterial Eradiation and Wound-Healing Applications

Fabrication of Thermo-Responsive Controllable Shape-Changing Hydrogel

Self-Powered Sensors: New Opportunities and Challenges from Two-Dimensional Nanomaterials

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