It is a challenge to manufacture pressure‐sensing materials that possess flexibility, high sensitivity, large‐area compliance, and capability detect both tiny large motions for the development of artificial intelligence products. Herein, very simple low‐cost approach proposed fabricate versatile pressure sensors based on microcrack‐designed carbon black (CB)@polyurethane (PU) sponges via natural polymer‐mediated water‐based layer‐by‐layer assembly. These are capable satisfying requirements...

Abstract Ultrathin and high‐performance electromagnetic interference (EMI) shielding materials are urgently demanded for modern microelectronic devices. 2D metal carbides (MXenes) considered as a promising EMI material due to its metallic conductivity. In this study, sodium alginate is applied interlayer spacer Ti 3 C 2 T x nanosheets, which not only prevents the restacking of lamella structure but also serves building blocks sponge‐like structure. /calcium (CA) aerogel films with tens...

Soft actuation materials are highly desirable in flexible electronics, soft robotics, etc. However, traditional bilayered actuators usually suffer from poor mechanical properties as well deteriorated performance reliability. Here, inspired by the delicate architecture of natural bamboo, we present a hierarchical gradient structured actuator via mesoscale assembly micro–nano-scaled two-dimentional MXenes and one-dimentional cellulose nanofibers with molecular-scaled strong hydrogen bonding....

Ti₃C₂T_x/TOCNF composite papers present excellent mechanical strength and EMI shielding effectiveness due to their hierarchically aligned structure strong intermolecular interactions.

The development of modern electronics has raised great demand for multifunctional materials to protect electronic instruments against electromagnetic interference (EMI) radiation and ice accretion in cold weather. However, it is still a challenge prepare high-performance films with excellent flexibilty, mechanical strength, durability. Here, we propose layer-by-layer assembly cellulose nanofiber (CNF)/Ti3C2Tx nanocomposites (TM) on bacterial (BC) substrate via repeated spray coating. CNFs...

Deposition of precious metal catalysts onto the surface various supporting materials to enhance stability and catalytic activity is highly desired. Although extensive studies have been focused on supported catalysts, their preparations are mainly based use reducing agents which not environmentally benign. Herein, we report a one-pot green synthesis gold nanoparticles (Au NPs) deposited cellulose nanocrystals (CNs) under hydrothermal conditions using CNs as agent stabilizing template. Our...

Highly flexible and foldable supercapacitor electrodes were fabricated by the layer-by-layer assembly of Ti₃C₂T_x(MXene) nanoflakes with carbon nanotubes on electrospun polymer fiber networks.

Progress toward the integration of electronic sensors with a signal processing system is important for artificial intelligent and smart robotics. It demands mechanically robust, highly sensitive, self-healable sensing materials which could generate discernible electric variations responding to external stimuli. Here, inspired by supramolecular interactions amino acid residues in proteins, we report nanostructured Ti3C2MXenes/rubber-based elastomer (NMSE) sensing. MXene nanoflakes modified...

Abstract Soft materials that can reversibly transform shape in response to moisture have applications diverse areas such as soft robotics and biomedicine. However, the design of a structurally transformable or mechanically self‐healing version humidity‐responsive material, which arbitrarily change reconfigure its 3D structures remains challenging. Here, by drawing inspiration from covalent–noncovalent network, an elaborately designed biopolyester is developed features simple hygroscopic...

Delicately aligned structures of two-dimensional (2D) MXene nanosheets have demonstrated positive effects on applications, especially in electromagnetic interference (EMI) shielding and infrared (IR) stealth. However, precise regulation structural assembly by theory-guided solution processing is still a great challenge. Herein, one-dimensional (1D) cellulose nanofibers (CNFs) with high aspect ratio are applied as reinforcing agent rheological modifier for MXene/CNF colloids to fabricate...

In this paper, we have demonstrated a facile and environmentally friendly approach to prepare Fe3O4/Ag@nanofibrillated cellulose (NFC) nanocomposites which enables tunability from highly porous, flexible aerogels solid stiff films. the procedure, NFC acts as (i) biocompatible support for magnetic silver nanoparticles (ii) reducing agent ions. Neither additional agents nor toxic organic solvents were used during preparation process. The Fe3O4/Ag@NFC nanocomposite aerogel exhibited excellent...

Metal and metal oxide nanoparticles (NPs) have attracted considerable attention due to their excellent catalytic activities in various organic transformation reactions. However, widespread application is limited because of self-agglomeration solution the resulting reduced performance. Here we report that cellulose nanocrystals (CNs), which are sustainable globally available large quantities from plants, can be used as a novel support for copper (CuO) NPs with enhanced The high surface area...

Cellulose nanowhisker assisted fabrication of carbon black based 3D hierarchical conductive structures in natural rubber with enhanced performance.

A novel and straightforward synthetic strategy was developed to prepare silver nanoparticles-doped cellulose microgels (Ag NPs@CMG) nanohybrids at room temperature. Residual alkali (sodium hydroxide/urea) from a dissolving system reused acted as functional accelerant, which made it possible for Ag+ be reduced Ag0 by CMG temperature, yielding Ag NPs decorated on CMG. The as-prepared NPs@CMG exhibited excellent catalytic performance in reduction of 4-nitrophenol organic dyes. Moreover, the...

Nitroxide radicals have fast and reversible redox reactions high electron transfer rates, while the instability in electrolytes low conductivity restrict their applications on electrodes. Here, we employ two-dimensional MXene Ti3C2Tx as a conductive film-forming agent for 4-amino-TEMPO (TEMPO = 2,2,6,6-tetramethylpiperidine-1-oxyl) to prepare freestanding flexible electrode. Pendant nitroxide experience two-electron storage through realize synergistically boosted charge with redox-active...

Construction of sustainable composite biofilms from natural biopolymers are greatly promising for advanced packaging applications due to their biodegradable, biocompatible, and renewable properties. In this work, food films developed by incorporating lignin nanoparticles (LNPs) as green nanofillers starch films. This seamless combination bio-nanofiller with biopolymer matrix is enabled the uniform size strong interfacial hydrogen bonding. As a result, as-prepared biocomposites exhibit...