High strength, self-healing sensitive ionogel sensor based on MXene/ionic liquid synergistic conductive network for human-motion detection

Abstract

The MXene/ionic liquid synergistic network was constructed in this work to solve the problem of poor mechanical properties of ionogel at high ionic liquid content. And, the ionogel was applied to human-motion detection.

High strength and anti‐swelling hydrogel strain sensors based on amphiphilic polyurethane assemblies for human‐motion detection

“…At the same time, considering that most hydrogels are not conductive by themselves, it is necessary to introduce materials with conductive ability in order to endow them with conductive ability. [30][31][32][33][34] Among them, the sensitivity of nanocomposite hydrogels is significantly higher than that of other types of hydrogels, and thus nanohydrogels have a wider range of applications. [35][36][37] And MXene is a new class of layered two-dimensional nanomaterials composed of transition metal carbides or nitrides with abundant surface functional groups ( OH, O, F), excellent conductivity, hydrophilicity, and mechanical stability.…”

“…At the same time, considering that most hydrogels are not conductive by themselves, it is necessary to introduce materials with conductive ability in order to endow them with conductive ability 30–34 . Among them, the sensitivity of nanocomposite hydrogels is significantly higher than that of other types of hydrogels, and thus nanohydrogels have a wider range of applications 35–37 .…”

Polyurethane-Encapsulated Biomass Films Based on MXene@Loofah Sponge for Piezoresistive Pressure Sensor Applications

“…Consequently, sensors typically exhibit high sensitivity within a very narrow induction range. In the present study, we focus on 2D nanomaterials, particularly transition metal carbides/nitrides (MXenes), which are renowned for their layered structure, excellent conductive performance, high specific surface area, and robust processability [14,15]. MXenes have found wide-ranging applications in electrochemical energy storage, sensor technology, and electromagnetic interference shielding [16].…”

A flexible, stretchable and wearable strain sensor based on physical eutectogels for deep learning-assisted motion identification

“…9,10 Although great progress has been witnessed in conductive gel development, synergistically integrating diverse functionalities such as high conductivity, exceptional mechanical performance, prominent self-adhesiveness, and selfhealing capability into a single conductive gel remains a challenge for practical use. [11][12][13][14][15] Eutectogels, novel conductive gels composed of polymer networks and deep eutectic solvents (DES), have attracted extensive attention in the gel family and have been widely applied in wearable devices, 16 ionic conductors, 17 drug delivery, 18 and energy storage 19 fields in recent years. 20 As a crucial component in eutectogels, DES is regarded as an ionic liquid analog and is made by mixing hydrogen bond donors (HBDs, eg., acids, alcohols, and urea) and hydrogen bond acceptors (HBAs, eg., choline chloride).…”

“…9,10 Although great progress has been witnessed in conductive gel development, synergistically integrating diverse functionalities such as high conductivity, exceptional mechanical performance, prominent self-adhesiveness, and self-healing capability into a single conductive gel remains a challenge for practical use. 11–15…”