Bioinspired MXene‐Based Piezoresistive Sensor with Two‐stage Enhancement for Motion Capture (Adv. Funct. Mater. 18/2023)

Abstract

In article number 2214503, Weiqing Yang, Weili Deng, and co-workers present a strategically designed villus-inspired intermittent architecture that can enhance the piezoresistive performance through a laser-induced manufacturing process. By utilizing the two-stage enhancement of intermittent pillars, the device shows a 20 times increase in sensitivity and 5 times increase in response range than conventional homogeneous microstructures. It represents a significant step forward in the development of commercial bioelectronics.

Perovskite Oxides Alleviate Microstrain and Anion Loss of Radially‐Aligned Ni‐Rich Ncm811 Cathodes under High‐Voltage Operations

“…The coating layer of LC-NCM811 still exist well after cycling, indicating inhibition of oxygen emission and disordered expansion of CEI. [6,30] The XPS results of the C-spectrums after cycling (Figure 5g) further verified the plummeting interfacial side reactions between electrode and electrolyte. The NCM811 presents a higher peak of electrolyte decomposition by-product (C═O) compared with that of LC-NCM811.…”

“…[4,5] Whereas, the Ni-rich cathodes (NCM811) are already applied in electric vehicles and other fields. [6,7] To further increase the energy density of Ni-rich cathodes, two effective ways are to increase Ni content and boost charge voltage, respectively. [8][9][10] The former requires more stringent technological conditions and environments for the synthesis with lower safety.…”

Mass-Produced Skin-Inspired Piezoresistive Sensing Array with Interlocking Interface for Object Recognition

“…The intermittent structure reduces the initial contact area and allows for staged compression, which prevents premature saturation and thus enhances the compressibility of the structure. 38 This contributes to achieving high sensitivity over a broad range, making it ideal in the field of structured pressure sensors. Figure 2a illustrates an entire sheet (10 cm × 10 cm, effective area) of PDMS film with intermittent structure fabricated using a reverse template method, with the structured region exhibiting reduced transparency.…”

Ethanol-assisted room-temperature rapid self-healing polydimethylsiloxane-polyurea/carbon composite elastomers for energy harvesters and smart sensors

“…Conventional polymeric materials are difficult to meet these requirements due to their limited self-healing capabilities and poor recongurability. However self-healing materials can repair internal and external damage, thus improving the reliability and lifetime of materials and reducing maintenance costs, 2,3 being widely used in electronic skins, 4 exible sensors, 5,6 humancomputer interaction, 7 and supercapacitors. 8,9 Over the decades, an increasing number of self-healing polymers have been developed based on reversible covalent bonds (e.g., Diels-Alder (DA) reactions, 10,11 metal-ligand coordination, 12,13 imine bonds, 14 boroxine, 15 etc.)…”