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Abstract: The demands for wearable technologies continue to grow and novel approaches for powering these devices are being enabled by the advent of new electromaterials and novel fabrication strategies. Herein, a novel approach is reported to develop superelastic wet‐spun hybrid carbon nanotube graphene fibers followed by electrodeposition of polyaniline to achieve a high‐performance fiber‐based supercapacitor. It is found that the specific capacitance of hybrid carbon nanotube (CNT)/graphene fiber is enhanced up to ≈39% using a graphene to CNT fiber ratio of 1:3. Fabrication of spring‐like coiled fiber coated with an elastic polymer shows an extraordinary elasticity capable of 800% strain while affording a specific capacitance of ≈138 F g−1. The elastic rubber coating enables extreme stretchability and enabling cycles with up to 500% strain for thousands of cycles with no significant change in its performance. Multiple supercapacitors can be easily assembled in series or parallel to meet specific energy and power needs. [ABSTRACT FROM AUTHOR]

This study investigates the mechanical properties of Polyurethane Bark Gum (PBG) reinforced with Solid Glass Beads (SGBs) of varying diameters and content. The tensile analysis demonstrates that a 1% SGB volume fraction maximizes tensile stress and fracture elongation due to synergic composite effects, with smaller SGBs enhancing interfacial adhesion and reducing microcrack formation. The impact analysis revealed that the addition of SGB reduced the impact strength due to interface delamination and energy dissipation mechanisms, with optimal impact resistance observed at a particle size of 0.4–0.6 mm and a content of 5%. Morphological characterization was conducted using optical microscopy, scanning electron microscopy, and synchrotron radiation CT scanning techniques, highlighting the role of SGB in toughening, crack bridging, and stress shielding. This study provides insights into the performance of PBG/SGB composite materials and guides the material design for specific applications. [ABSTRACT FROM AUTHOR]

With the development of society and technology, machinery and equipment have enhanced our work efficiency but have also introduced various hazards, such as electromagnetic radiation, medical, industrial, and agricultural rays. The harms these radiations inflict on human health are significant, with severe cases leading to cancer, disability, or even life-threatening situations. Therefore, effective protective measures in some fields are crucial. This paper firstly summarized the basic principles of radiation protection for different rays, then systematically introduced the widely used manufacturing methods for flexible radiation shielding materials, including weaving with metal fibers, fiber blending, silver-plated fibers, and so on. Subsequently, the paper reviewed the testing methods of radiation-protective clothing materials. Finally, it comprehensively concluded the discussions on flexible radiation shielding materials and offered a perspective on their future development trends. [ABSTRACT FROM AUTHOR]

The ubiquity of wearables, coupled with the increasing demand for power, presents a unique opportunity for nanostructured fiber-based mobile energy storage systems. When designing wearable electronic textiles, there is a need for mechanically flexible, low-cost and light-weight components. To meet this demand, we have developed an all-in-one fiber supercapacitor with a total thickness of less than 100 μm using a novel facile coaxial wet-spinning approach followed by a fiber wrapping step. The formed triaxial fiber nanostructure consisted of an inner poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) core coated with an ionically conducting chitosan sheath, subsequently wrapped with a carbon nanotube (CNT) fiber. The resulting supercapacitor is highly flexible, delivers a maximum energy density 5.83 Wh kg−1 and an extremely high power of 1399 W kg−1 along with remarkable cyclic stability and specific capacitance. This asymmetric all-in-one fiber supercapacitor may pave the way to a future generation of wearable energy storage devices. [ABSTRACT FROM AUTHOR]

• Numbers of –F and –OH groups of Ti 3 C 2 T x could be removed by carbonizing. • Cotton fabrics contain the inherent flexibility after carbonizing. • High load of Ti 3 C 2 T x flakes on flexible substrate. • High areal capacitance of flexible supercapacitor based on Ti 3 C 2 T x /TiO 2 heterojunction. Flexible Carbonized MXene/Cotton fabric is prepared by dipping cotton fabric into Ti 3 C 2 T x suspension and carbonizing the composite fabric. Cotton fabric, embedded by Ti 3 C 2 T x flakes without the assistance of crosslinkers and binders, is the most used precursor of all carbon sources. In this work, Ti 3 C 2 T x flakes with different concentrations ranging from 2 to 8 wt% are loaded on cotton fabric and carbonized subsequently under the temperature from 800 to 1200 °C. The highest areal capacitance dramatically reaches to 794.2 mF cm−2 (233.6 F g−1) at a scan rate of 2 mV s−1 with 6 wt% Ti 3 C 2 T x at 1000 °C, which shows a 74% improvement compared to the carbonized cotton cloth dipped into the Ti 3 C 2 T x dispersions under same condition. Also, the assembled all-solid-state flexible supercapacitor remains 74% of capacitance even after 10,000 charge and discharge cycles showing a stable rechargeable ability. From a variety of cellulosic materials, the method can be used to produce Ti 3 C 2 T x composite fabrics which are promising candidates of energy storage, electromagnetic shielding, sensing, absorbing, electrocatalysis, etc. [ABSTRACT FROM AUTHOR]

As interest in smart textiles grows, fiber-based supercapacitors are gaining attention as promising devices for powering wearable electronics. Herein, we have demonstrated a two-step manufactured hybrid fiber with excellent energy storage properties. Anhydrous MXene (Ti3C2Tx) sheets are primarily spun in synergy with liquid crystal carbon nanotubes (CNTs) to produce a continuous fiber as a promising electrode material, which solves the problem of poor rate capability owing to the sheet re-stacking of MXene. MnO2@MXene/CNT fibers are subsequently prepared by electrochemical deposition with controlled time. The optimal content of MXene (10 wt%) and a perfect thickness of the MnO2 layer (4 μm) are testified to achieve an excellent capacitance of 371.1 F cm−3 in three-electrode system, which is about 200% and 1800% higher than that of 10 wt%-MXene/CNT and CNT fiber electrode, respectively. Symmetric fiber supercapacitor is assembled by paralleling two fibers with LiCl/PVA gel electrolyte, manifesting a superior cycling stability of 86.3% after 10000 cycles. Anhydrous MXene nanosheets and CNTs are incorporated by a high yield spinning technique to prepare continuous hybrid fibers as a conductive framework for MnO2 deposition, exhibiting stable and outstanding energy storage properties in supercapacitor. [ABSTRACT FROM AUTHOR]

Highlights Characterized by rapid maturation, short growth cycles, and high strength and toughness, bamboo can be compounded with polymers to produce bamboofiber reinforced polymeric composites (BFRPCs). These composites exhibit corrosion resistance comparable to traditional materials such as glass fiber and carbon fiber composites. Additionally, they possess features like low density, high strength, degradability, and environmental friendliness, with low production costs and strong industrial applicability. This paper reviews the accomplishments in BFRPCs and provides an overview of the production processes for BFRPCs. Furthermore, it summarizes the research status of mechanical properties, moisture absorption characteristics, interface performance, and flame retardancy of these composites. The current issues with BFRPCs were analyzed. Finally, the paper explores future research directions and potential applications of BFRPCs. The performance studies on BFRPCs are comprehensively presented. Composite processing of BFPRCs is reviewed. Pros and cons of various types of BFRPCs are analyzed. Overview of the applications of BFRPCs in various domains is presented. Future trends and challenges of BFRPCs are introduced. [ABSTRACT FROM AUTHOR]

Summary: All‐solid‐state flexible supercapacitors (FSCs) are promising energy‐storage devices in wearable smart electronics. Carbon cloth (CC) has emerged as an ideal candidate as it can fulfill all the required properties for conductive, corrosion‐resistant, and lightweight FSC substrates. However, commercial CC is difficult to adhere to without crosslinkers and binders owing to the hydrophobic surface. Herein, oxygen plasma and chemistry methods are selected for hydrophilic modification of commercial CC. Then, Ti3C2Tx flakes are coated on the surface of modified CC as active materials. These modified morphologies were characterized by scanning electron microscope and mechanical properties were investigated by a fabric tensile tester. The electrochemical properties of the MXene‐based electrodes by two modification methods were compared. Chemistry modification CC/Ti3C2Tx electrode exhibits an areal capacitance of 513 mF cm−2, which is 88% higher than that of oxygen plasma‐modified CC/MXene electrode, and capacitance retention remains above 92% after 10 000 cycles. This work proposes a feasible strategy, offering a platform for rational designs of flexible electronics based on textiles, as well as employing a large family of MXenes and their heterostructures. [ABSTRACT FROM AUTHOR]

Electrospinning is a simple and effective technique for preparing carbon nanofibers. However, carbon nanofiber materials have some drawbacks, such as low specific surface area, small pore size, and low porosity, which can affect the electrochemical performance of supercapacitors. This article proposes a preparation method for a multi-level porous structure for thick electrodes. Sponge-like nanofibers are formed through electrospinning by adding a certain amount of PMMA to the polyacrylonitrile mixed spinning solution after doping with heteroatoms. After reverse hanging pre-oxidation and carbonization, a hierarchical porous, highly conductive, and flexible carbon nanofiber sponge is obtained. After testing, at a current density of 0.25 A g−1, its specific capacitance reached 207 F g−1. As the power density increased from 250 W kg−1 to 3997.89 W kg−1, the energy density changed from 28.73 W h kg−1 to 8.44 W h kg−1, demonstrating that the porous active carbon nanofiber sponge electrode has a significant energy storage advantage. [ABSTRACT FROM AUTHOR]

• HM-MOFs have unique advantages for enzyme encapsulation. • Design strategies for HM-MOFs are systematically summarizes. • Synthetic strategy and advanced applications for HM-MOFs encapsulated enzymes are surveyed. • Possible future directions of HM-MOFs encapsulated enzymes are discussed. Hierarchical mesoporous metal–organic frameworks (HM-MOFs) with adjustable mesopores have shown great potential for the encapsulation of enzyme because of their enhanced performance for enzymatic catalysis. The evolution of HM-MOFs encapsulated enzymes has resulted in tremendous progress. To date, a considerable number of HM-MOFs featured with intrinsic mesopores or mesoporous defects have been developed for enzyme encapsulation, and significant enhancement has been achieved in terms of catalytic activity, stability, and reusability. This review systematically summarizes the exploitation and strategies to design HM-MOFs. Various strategies for developing enzyme@HM-MOF composites and their advanced applications are also surveyed. Possible future directions in this area are also envisioned and discussed to provide an accessible introduction to HM-MOFs encapsulated enzymes for the scientists in this field. [ABSTRACT FROM AUTHOR]

Objective To analyze the distribution and drug resistance of pathogens isolated from patients in intensive care units (ICU) and non-ICU, so as to provide evidence for clinical anti-infective treatment and promote rational antibiotics use. Methods Inspection samples and drug susceptibility test results of patients in ICU and non-ICU from the whole year of 2013 were compared and analyzed retrospectively. All the data were statistically analyzed by using the WHO NET5.3 software and EXCEL. Results 1. There were 469 strains of pathogenic bacteria isolated from patients in ICU.3715 strains were isolated from patients in non-ICU. 2. The most common pathogens in ICU were Acinetobacter baumannii (Aba), extended-spectrum β-lactamase-producing Klebsiella pneumoniae (Esk) and Enterococcus faecium (Efm). 3. The most common pathogens in non-ICU were extended-spectrum β-lactamase-producing Escherichia coli (Esd), Escherichia coli (Eco) and Klebsiella pneumonia (Kpn). 4. ICU strains resistant rate was generally higher than the non-ICU. ICU separation of Aba resisted for most β-lactam antibiotic and the rate was greater than 80%, significantly higher than non-ICU department. Conclusions The resistant of ICU isolates is in serious condition. Hospital should strengthen the supervision and management of clinical antimicrobial drug use to control nosocomial infection and reduce bacterial resistance. [ABSTRACT FROM AUTHOR]

With the rapid development of intelligent wearable electronics, flexible shielding electronic skin is highly desired to monitor physiological signals and protect human beings from electromagnetic radiation. One primary concern is the synergetic improvement of electromagnetic interference (EMI) shielding effectiveness and piezoresistive sensitivity that meet the demands above. Here, we report a bifunctional electrospun nanofiber membrane decorated with MXene nanosheets and Fe 3 O 4 nanoparticles (NPs) that possess desired properties. Notably, this electrospun composite membrane (thicknesses of 33 μm) demonstrates excellent specific shielding effectiveness (SSE/t) of 9212.1 dB cm2 g−1 in a broad waveband range (8–26.5 GHz), owing to the combined effects of favorable porous structure, magnetic loss from Fe 3 O 4 NPs and dielectric loss from MXene. The bifunctional membrane exhibited high sensitivity of 5.53 kPa−1 in a broad pressure regime (0–2.5 kPa), with a rapid response time and long-term stability. This pressure sensor can achieve noninvasive health monitoring of pulse, laryngeal movement, and other physiological signals. This work provides a new avenue toward wearable electromagnetic wave protection and human-machine interfaces. [Display omitted] • A flexible electrospun MXene-Fe 3 O 4 nanofiber membrane with a 0D-1D-2D structure. • The bifunctional membrane is developed for EMI shielding and pressure sensor. • It displays excellent EMI SSE/t value of 9212.1 dB cm2 g−1 in wide waveband range. • The pressure sensor shows high sensitivity (5.53 kPa−1), fast response time (62.2 ms). • The sensor achieves noninvasive health monitoring of physiological signals. [ABSTRACT FROM AUTHOR]