Mussel-Inspired Polynorepinephrine/MXene-Based Magnetic Nanohybrid for Electromagnetic Interference Shielding in X-Band and Strain-Sensing Performance

Abstract

The current work delivers preparation of MXene-based magnetic nanohybrid coating for flexible electronic applications. Herein, we report carbon dot-triggered photopolymerized polynorepinepherene (PNE)-coated MXene and iron oxide hybrid deposited on the cellulose microporous membrane via a vacuum-assisted filtration strategy. The surface morphologies have been monitored by scanning electron microscopy analysis, and the coating thickness was evaluated by the gallium-ion-based focused ion beam method. Coated membranes have been tested against uniaxial tensile stretching and assessed by their fracture edges in order to assure flexibility and mechanical strength. Strain sensors and electromagnetic interference (EMI) shielding have both been tested on the material because of its electrical conductivity. The bending strain sensitivity has been stringent because of their fast ‘rupture and reform’ percolation network formation on the coated surface. Increased mechanical strength, solvent tolerance, cyclic deformation tolerance, and EMI shielding performance were achieved by decreasing interstitial membrane porosity. Considering a possible application, the membrane also has been tested against simulated static and dynamic water flow conditions that could infer its excellent robustness which also has been confirmed by elemental analysis via ICP–MS. Thus, as of nurturing the works of the literature, it could be believed that the developed material will be an ideal alternative of flexible lightweight cellulose for versatile electronic applications.

Highly Flexible Fabrics/Epoxy Composites with Hybrid Carbon Nanofillers for Absorption-Dominated Electromagnetic Interference Shielding

“…Then, the randomly oriented porous structures of the PFs provide effective dissipation of the incoming EM waves. The EM waves are secondarily attenuated at the interface of the SWCNTs/rGO and PF substrates [ 65 , 66 ]. A similar study regarding the effect of hierarchical structure for multi-dissipative EMI-shielding was reported.…”

Dual-Sensing, Stretchable, Fatigue-Resistant, Adhesive, and Conductive Hydrogels Used as Flexible Sensors for Human Motion Monitoring

“…In addition, the continuous advancement in personalized demands has put forward higher standards and requirements for the application of flexible sensors in different conditions. 7,8 Moreover, to meet the requirement of fast development of next-generation flexible sensors, the combination of high conductivity, excellent mechanical performance (such as toughness, stretchability, and strength), great antifatigue capability, and self-adhesiveness in an electronic sensor are highly desirable. 9,10 Hence, it is of paramount importance but remains a great challenge to fabricate flexible sensors with multifunctionality and eminent performance stability.…”

“…With the advancement in intelligent technology, smart wearable devices have penetrated our daily life in diverse kinds of forms such as glass, watch, shoes, and wristband, which can precisely track the wearer’s body exercises, physiological health, temperature, and heart rate in real-time. − However, as the paramount component of wearable electronic devices, the conventional conductive sensor is normally constructed by integrating a conductive filter (e.g., metal, carbon materials, and semiconductors) into a flexible substrate to form the conductive network, which causes discomfort when wearing and is challenging to achieve accurate signals. , Therefore, the flexibility and higher sensitivity of sensors are the current research focus. In addition, the continuous advancement in personalized demands has put forward higher standards and requirements for the application of flexible sensors in different conditions. , Moreover, to meet the requirement of fast development of next-generation flexible sensors, the combination of high conductivity, excellent mechanical performance (such as toughness, stretchability, and strength), great antifatigue capability, and self-adhesiveness in an electronic sensor are highly desirable. , Hence, it is of paramount importance but remains a great challenge to fabricate flexible sensors with multifunctionality and eminent performance stability. , …”

Highly Transparent and Flexible Zn-Ti3C2Tx MXene Hybrid Capacitors

“…MXene is a kind of metal carbide and nitride that emerged in recent years. The formula of MXenes is M n +1 X n T x . , Among these MXenes, Ti 3 C 2 T x is the most frequently used because of its superior electronic conductivity, outstanding flexibility, and high capacitance, and it has a large number of applications in energy conversion, sensors, and electromagnetic shielding. − …”