MXene Hydrogels for Soft Multifunctional Sensing: A Synthesis‐Centric Review DOI

Umay Amara,

Lingtian Xu,

Iftikhar Hussain

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 6, 2024

Abstract Intelligent wearable sensors based on MXenes hydrogels are rapidly advancing the frontier of personalized healthcare management. MXenes, a new class transition metal carbon/nitride synthesized only decade ago, have proved to be promising candidate for soft sensors, advanced human–machine interfaces, and biomimicking systems due their controllable high electrical conductivity, as well unique mechanical properties derived from atomistically thin layered structure. In addition, MXenes’ biocompatibility, hydrophilicity, antifouling render them particularly suitable synergize with into composite mechanoelectrical functions. Nonetheless, while use MXene multifunctional surface or an current collector such energy device electrode is prevalent, its incorporation gel system purpose sensing vastly less understood formalized. This review provides systematic exposition synthesis, property, application intelligent sensors. Specific challenges opportunities synthesis adoption in practical applications explicitly analyzed discussed facilitate cross gemination across disciplines advance potential hydrogels.

Language: Английский

Highly Conductive MXene/PEDOT:PSS‐Integrated Poly(N‐Isopropylacrylamide) Hydrogels for Bioinspired Somatosensory Soft Actuators DOI

Pan Xue,

Cristian Valenzuela,

Shaoshuai Ma

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(24)

Published: March 10, 2023

Abstract Sophisticated sensing and actuation capabilities of many living organisms in nature have inspired scientists to develop biomimetic somatosensory soft robots. Herein, the design fabrication homogeneous highly conductive hydrogels for bioinspired actuators are reported. The synthesized by situ copolymerization surface‐functionalized MXene/Poly(3,4‐ethylenedioxythiophene)/poly(styrenesulfonate) ink with thermoresponsive poly( N ‐isopropylacrylamide) hydrogels. resulting found exhibit high conductivity (11.76 S m −1 ), strain sensitivity (GF 9.93), broad working range (≈560% strain), stability after over 300 loading–unloading cycles at 100% strain. Importantly, shape‐programmable hydrogel rapid response, light‐driven remote control, self‐sensing capability developed chemically integrating a structurally colored polymer. As proof‐of‐concept illustration, applied devising programmable shape‐morphing an artificial octopus, fish, gripper that can simultaneously monitor their own motions via real‐time resistance variation. This work is expected offer new insights into advanced materials capabilities, pave avenue development soft‐matter‐based self‐regulatory intelligence built‐in feedback control paramount significance intelligent robotics automated machines.

Language: Английский

Citations

142
Bioinspired MXene-Based Soft Actuators Exhibiting Angle-Independent Structural Color DOI Creative Commons

Pan Xue,

Yuanhao Chen,

Yiyi Xu

et al.

Nano-Micro Letters, Journal Year: 2022, Volume and Issue: 15(1)

Published: Nov. 28, 2022

Abstract In nature, many living organisms exhibiting unique structural coloration and soft-bodied actuation have inspired scientists to develop advanced colored soft actuators toward biomimetic robots. However, it is challenging simultaneously biomimic the angle-independent color shape-morphing capabilities found in plum-throated cotinga flying bird. Herein, we report MXene-based with that are fabricated through controlled self-assembly of colloidal SiO 2 nanoparticles onto highly aligned MXene films followed by vacuum-assisted infiltration polyvinylidene fluoride into interstices. The resulting exhibit brilliant, color, as well ultrafast recovery speeds (a maximum curvature 0.52 mm −1 can be achieved within 1.16 s, a time ~ 0.24 s) response acetone vapor. As proof-of-concept illustrations, applied demonstrate blue gripper-like bird’s claw capture target, artificial green tendrils twine around tree branches, an multicolored butterfly flutter its wings upon cyclic exposure strategy expected offer new insights development multifunctional for somatosensory robotics next-generation intelligent machines.

Language: Английский

Citations

141
Bioinspired hydrogel actuator for soft robotics: Opportunity and challenges DOI

Yunrui Chen,

Yabin Zhang, Hongyuan Li

et al.

Nano Today, Journal Year: 2023, Volume and Issue: 49, P. 101764 - 101764

Published: Jan. 31, 2023

Language: Английский

Citations

117
Intrinsic Anti‐Freezing and Unique Phosphorescence of Glassy Hydrogels with Ultrahigh Stiffness and Toughness at Low Temperatures DOI

Li Hou,

Huaqiang Ju, Xing Peng Hao

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(21)

Published: Feb. 23, 2023

Most hydrogels become frozen at subzero temperatures, leading to degraded properties and limited applications. Cryoprotectants are massively employed improve anti-freezing property of hydrogels; however, there accompanied disadvantages, such as varied networks, reduced mechanical properties, the risk cryoprotectant leakage in aqueous conditions. Reported here is glassy hydrogel having intrinsic capacity excellent optical ultra-low temperatures. Supramolecular poly(acrylamide-co-methacrylic acid) with moderate water content (≈50 wt.%) dense hydrogen-bond associations a state room temperature. Since hydrogen bonds strengthened temperature decreases, this gel becomes stronger stiffer, yet still ductile, Young's modulus 900 MPa, tensile strength 30 breaking strain 35% -45 °C. This retains high transparency even liquid nitrogen. It also exhibits unique phosphorescence due presence carbonyl clusters, which further enhanced Further investigations elucidate that related fact most molecules tightly bound confined matrix non-freezable. correlation, validated several systems, provides roadmap develop for widespread applications extreme

Language: Английский

Citations

110
Anti-freeze hydrogel-based sensors for intelligent wearable human-machine interaction DOI
Zhiwei Fu, He Liu,

Qingying Lyu

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 481, P. 148526 - 148526

Published: Jan. 7, 2024

Language: Английский

Citations

59
Responsive soft actuators with MXene nanomaterials DOI Creative Commons

Shaoshuai Ma,

Pan Xue,

Yuqi Tang

et al.

Deleted Journal, Journal Year: 2023, Volume and Issue: 2(1)

Published: Dec. 11, 2023

Abstract Compared with traditional rigid actuators, soft actuators exhibit a large number of advantages, including enhanced flexibility, reconfigurability, and adaptability, which motivate us to develop artificial widespread applications. Soft MXene nanomaterials are regarded as highly promising candidates for advancing the development bioinspired robotics consequence their unprecedented physicochemical characteristics, such high electronic conductivity, thermal photothermal conversion capability, abundant surface functional groups. Herein, comprehensive overview recent advancement extensive applications from perspective bioinspiration is provided. First, synthetic methods properties briefly summarized. Subsequently, (including photoresponsive electroresponsive chemoresponsive actuators) sequentially investigated focus on fabrication approaches, actuation properties, underlying mechanisms, At end, future challenges opportunities rapid discussed.

Language: Английский

Citations

47
Photoresponsive hydrogel-based soft robot: A review DOI Creative Commons
Jingang Jiang,

Shuainan Xu,

Hongyuan Ma

et al.

Materials Today Bio, Journal Year: 2023, Volume and Issue: 20, P. 100657 - 100657

Published: May 10, 2023

Soft robots have received a lot of attention because their great human-robot interaction and environmental adaptability. Most soft are currently limited in applications due to wired drives. Photoresponsive robotics is one the most effective ways promote wireless Among many materials, photoresponsive hydrogels good biocompatibility, ductility, excellent photoresponse properties. This paper visualizes analyzes research hotspots field using literature analysis tool Citespace, demonstrating that hydrogel technology key direction. Therefore, this summarizes current state on terms photochemical photothermal response mechanisms. The progress application highlighted based bilayer, gradient, orientation, patterned structures. Finally, main factors influencing its at stage discussed, including development directions insights. Advancement crucial for robotics. advantages disadvantages different preparation methods structures should be considered scenarios select best design scheme.

Language: Английский

Citations

44
Triboelectric nanogenerators based on hydrated lithium ions incorporated double-network hydrogels for biomechanical sensing and energy harvesting at low temperature DOI
Hongyi Zhang,

Qiannian Yang,

Lijian Xu

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: 125, P. 109521 - 109521

Published: March 20, 2024

Language: Английский

Citations

43
A Freeze‐Resistant, Highly Stretchable and Biocompatible Organohydrogel for Non‐Delayed Wearable Sensing at Ultralow‐Temperatures DOI
Xinxin Huang,

Zhihao Zheng,

Haiqi Wang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(16)

Published: Jan. 2, 2024

Abstract Wearable electronics based on conductive hydrogels (CHs) easily suffer from prolonged response times, reduced wearing comfort, shortened service lives, and impaired signal accuracy in cold environments, because conventional CHs tend to freeze at subzero temperatures lose their flexibility, adhesion, transparency, conductivity, which will limit applications extreme environments. Inspired by the way psychrotolerant creatures superabsorbent materials interfere with hydrogen bonding networks of water, a freeze‐resistant organohydrogel (COH) is facilely fabricated. The synergy effect between charged polar terminal groups binary solvent system water–ethylene glycol weakens water molecules endows COH remarkable freezing tolerance (−78 °C). Additionally, obtained ultra‐stretchable (≈6185%), tough (9.2 MJ m −3 ), highly transparent (≈99%), self‐adhesive (10.2–27.8 kPa), biocompatible. This versatile assembled into strain sensor well‐designed bracelet electrocardiogram sensor. Benefiting exceptional low‐temperature prepared COH, these devices exhibit fast delay‐free signals even −40 °C. Overall, this work proposes strategy develop multifunctional COHs for supporting human health

Language: Английский

Citations

41
High‐Conductivity, Self‐Healing, and Adhesive Ionic Hydrogels for Health Monitoring and Human‐Machine Interactions Under Extreme Cold Conditions DOI Creative Commons
Fei Han, Shumeng Chen, Fei Wang

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

Abstract Ionic conductive hydrogels (ICHs) are emerging as key materials for advanced human‐machine interactions and health monitoring systems due to their unique combination of flexibility, biocompatibility, electrical conductivity. However, a major challenge remains in developing ICHs that simultaneously exhibit high ionic conductivity, self‐healing, strong adhesion, particularly under extreme low‐temperature conditions. In this study, novel ICH composed sulfobetaine methacrylate, methacrylic acid, TEMPO‐oxidized cellulose nanofibers, sodium alginate, lithium chloride is presented. The hydrogel designed with hydrogen‐bonded chemically crosslinked network, achieving excellent conductivity (0.49 ± 0.05 S m −1 ), adhesion (36.73 2.28 kPa), self‐healing capacity even at −80 °C. Furthermore, the maintain functionality over 45 days, showcasing outstanding anti‐freezing properties. This material demonstrates significant potential non‐invasive, continuous monitoring, adhering conformally skin without signal crosstalk, enabling real‐time, high‐fidelity transmission cryogenic These offer transformative next generation multimodal sensors, broadening application possibilities harsh environments, including weather outer space.

Language: Английский

Citations

10