Super-stretchable and adhesive cellulose Nanofiber-reinforced conductive nanocomposite hydrogel for wearable Motion-monitoring sensor

Huang, Fei; Wei, Wei; Fan, Qiandan; Li, Lvgang; Zhao, Mingbo; Zhou, Zuowan

doi:10.1016/j.jcis.2022.01.117

Cited by 57 publications

(21 citation statements)

References 56 publications

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“…The HAM sensors commonly used include oximetry sensors, magnetometers, gyroscopes, accelerometers, electromyography, electrocardiography, bending curvature sensors, GPS sensors, and body temperature sensors [116], [117], [118], [119]. Huang et al have developed a stretchable adhesive substrate material using a conductive nanogel and a cellulose nanofiber-reinforced conductive nanocomposite [120]. The substrate material showed 2795% of stretchability and a tensile stress of 128.6 kPa while displaying a linear relationship between the percentage resistance change (( R/R)%) and the percentage strain in the range of 0 to 400%.…”

Section: Wearable Sensors For Wbanmentioning

confidence: 99%

Wireless Body Area Networks and Their Applications—A Review

et al. 2023

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In this paper, a comprehensive review of the wireless body area network is provided. A review of the WBAN architectures, standard network topologies, and WBAN communication protocols is discussed in detail. Also, the security requirements of WBAN, security threats and types of attacks, and authentications used in WBAN are discussed. The paper also includes very detailed coverage of antenna types, antenna designs, and flexible antennas used in WBAN with some design considerations and comparisons. Some new energy harvesting technologies, materials used for energy harvesting, and energy management are also discussed. Energy harvesting and power management is an ever-growing area of research. Despite the fact that there are many nanogenerator-based energy harvesting methods, the demand for more efficient energy harvesting mechanisms is ever-increasing. The paper has an extensive discussion of energy harvesting and power management methods. Subsequently, some reviews of recent developments in wearable sensors and novel materials for developing wearable sensors are discussed. Finally, the application areas of WBAN are discussed INDEX TERMS Body area network, network security, wireless communication protocols, wearable sensors, energy harvesting, WBAN, flexible sensors, IoT.

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Section: Wearable Sensors For Wbanmentioning

confidence: 99%

Wireless Body Area Networks and Their Applications—A Review

et al. 2023

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“…16 Besides, most of the reported ICHs lack satisfactory self-healing and antifreezing ability, severely resisting their practical application. 20,23 Therefore, it remains a challenge to simultaneously obtain high conductivity, excellent mechanical properties, self-healing ability, and freezing tolerance for ICHs. For ICHs, the self-healing ability can be achieved by building dynamic physical or chemical interactions such as hydrogen bonds, ionic coordination, disulfide bonds, and Schiff's base reaction.…”

Section: Introductionmentioning

confidence: 99%

“…17,28−30 Acrylic acid (PAA) hydrogels can form reversible interactions with metal ions by the COO −metal coordination, so they have been widely used in preparing self-healing epidermic sensors. 23,28,31,32 For example, a conductive self-healing hydrogel namely PAAm/PAA-Fe 3+ / NaCl exhibited a self-healing efficiency as high as 90% and also showed good sensing performance after being healed. 33 However, due to the restriction relationship between the dynamic interaction and the mechanically stable cross-linking of the mental-ligand bonds, most self-healing ICHs based on PAA showed weak mechanical strength or small fracture strain range.…”

Section: Introductionmentioning

confidence: 99%

Tough, Healable, and Sensitive Strain Sensor Based on Multiphysically Cross-Linked Hydrogel for Ionic Skin

et al. 2023

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Ion conductive hydrogels (ICHs) have attracted great interest in the application of ionic skin because of their superior characteristics. However, it remains a challenge for ICHs to achieve balanced properties of high strength, large fracture strain, self-healing and freezing tolerance. In this study, a strong, stretchable, selfhealing and antifreezing ICH was demonstrated by rationally designing a multiphysically cross-linked network structure consisting of the hydrophobic association, metal-ion coordination and chain entanglement among poly(acrylic acid) (PAA) polymer chains. The deliberately designed Brij S 100 acrylate (Brij-100A) micelle crosslinker can effectively dissipate energy and endow hydrogels with desirable stretchability. The self-healing ability of hydrogels originates from the reversible hydrophobic association in micelles and Fe 3+ -COO − coordination. After the addition of NaCl, the chain-entangled physical network caused by the salting-out effect can both enhance mechanical strength and promote electron transport. With the synergy of hydrophobic association, mental-ligand coordination and chain entanglement, the PAA/Brij-100A/ Fe 3+ /NaCl (PAA/BA/Fe 3+ /NaCl) hydrogels exhibited a high tensile strain of 1140%, a tensile strength of 0.93 MPa and a toughness of 3.48 MJ m −3 . Besides, the PAA/BA/Fe 3+ /NaCl hydrogels exhibited a high conductivity of 0.43 S m −1 and good freezing resistance. The ionic skin based on the PAA/BA/Fe 3+ /NaCl hydrogels showed high sensitivity (GF = 5.29), wide strain range (0− 950%), fast response time (220 ms) and good stability. Also, the self-healing ability of the ionic skin can significantly prolong its service time, and the antifreezing property can broaden its applicable temperature. This study offers new insight into the design of multifunctional ionic skin for wearable electronics.

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“…With the development of material technology, flexible devices attract more and more attention in daily application equipment, , such as stretchable light-emitting diodes, flexible smartphones and smartwatches, energy harvesting devices, , e-skins, and wearable sensors. − Particularly, to encourage promising applications in human interaction, physiology activity monitoring, and on-point healthcare, , flexible and wearable sensors have been rapidly developed in recent years. Flexible sensors reported to date can be classified into resistive, − piezoelectric, − capacitive, − and triboelectric types depending on their sensing mechanism to test tensile force, pressure, etc.…”

Section: Introductionmentioning

confidence: 99%

Silver Nanowire/Silver/Poly(dimethylsiloxane) as Strain Sensors for Motion Monitoring

Zhang

Liu

et al. 2022

ACS Appl. Nano Mater.

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Stretchable resistive sensors attract wide attention due to their feasible fabrication method and promising application prospect, while the sensitivity (gauge factor (GF)) and response time for quick and effective response in working are very important for stretchable resistive sensors. Herein, a facile method combined with solution coating and laser direct writing is promoted to fabricate a silver nanowire/silver/poly(dimethylsiloxane) (AgNW/Ag/PDMS) strain sensor. The reduced Ag welds the AgNWs to make the conductive layer robust for deformation, and the obtained stretchable resistive sensor has a high GF of 623.2, a short response time of 51 ms, a recovery time of 50 ms, a wide sensing range beyond 35%, and good cyclic repeatability (over 2000 times). The sensor features highly sensitive and stable performance for monitoring diverse human and mechanical motions, demonstrating a promising and attractive application for wearable devices and human–machine interaction.

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Super-stretchable and adhesive cellulose Nanofiber-reinforced conductive nanocomposite hydrogel for wearable Motion-monitoring sensor

Cited by 57 publications

References 56 publications

Wireless Body Area Networks and Their Applications—A Review

Wireless Body Area Networks and Their Applications—A Review

Tough, Healable, and Sensitive Strain Sensor Based on Multiphysically Cross-Linked Hydrogel for Ionic Skin

Silver Nanowire/Silver/Poly(dimethylsiloxane) as Strain Sensors for Motion Monitoring

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