Cartilage Bioprinting

A novel bioprinting method demonstrates that, under the sole influence of bioprinted cellular patterning, native-like micro cartilage (PA-MCTs) can be formed. This technique recapitulates the morphology, biochemical composition, and mechanical properties of native cartilage. Additionally, PA-MCTs serve as models for therapeutic drug screening and cartilage development studies. More in article number 2308694, Brian E. Grottkau, Zhixin Hui, Yonggang Pang.

Li-O₂ Batteries

Experiments and calculations provide essential insights into the discharge/charge mechanisms of a Li–O₂ cell using a carbon electrode and high-Gutmann donor number solvent. It revealed a dynamic reversible change in the DMSO molecule resulting from interaction of LiO₂–(solvent)_n, thereby confirming the solution mechanism for oxygen reduction reactions through an unprecedented analysis of the electrolyte molecule using operando Raman, supported by theoretical simulations. More in article number 2306895, Juarez L. F. Da Silva, Gustavo Doubek, and co-workers.

Cathode Materials

Calcination of Ni-rich core/Mn-rich shell precursors with a pre-oxidized Mn component demonstrably suppresses Mn interdiffusion. This preservation of the core/shell architecture minimizes surface Ni content, thereby enhancing interfacial stability. Consequently, the core/shell design significantly mitigates surface-induced side reactions and cross-talk effects, leading to reduced growth of interfacial impedance during battery operation. In article number 2400518, Jin Ho Bang and co-workers.

Triboelectric Nanogenerator

Triboelectric nanogenerators with a convertible rectification feature, in which the direction of the charge flow generated is systematically controlled upon slow and random droplet impingement, is reported, paving the path for the incorporation of nanogenerators into portable self-powered electronics. More in article number 2306980, Dong-Myeong Shin and co-workers.

The diversification of electronic device applications imposes elevated requirements on the broad temperature adaptability and safety of polymer-based solid-state batteries. Modification strategies, including filler design, structural modification, optimization of Li salts, and interface design, can effectively address the limitations of polymer electrolytes, paving the way for versatile electrolyte applications across a wide temperature range.

Transition Metal Oxides (TMOs) represent a promising class of materials for supercapacitors. The ongoing progress in research within this domain suggests that TMOs are poised to assume a crucial function in the advancement of high-performance supercapacitors, thereby facilitating the establishment of a more effective and ecologically sustainable energy storage framework. The pictorial illustration of the transition metal structures and their general properties is represented above.

Carbon dots (CDs) have attracted huge interest due to their superior optical properties. The application of CDs in the field of optoelectronics is developed fast. Here, a detailed summary of their applications in the field of luminescent solar concentrators (LSCs), light-emitting diodes (LEDs), solar cells, and photodetectors is reported. The definition, categories, and synthesis methods of CDs are briefly introduced.

The central circular platform symbolizes 3D printing's transformative influence on photocatalysis (PC) and electrocatalysis (EC). The review elucidates the utilization of 3D printing methodologies for the cutting-edge development and production of intricate photocatalysts and electrocatalysts. The review delves into recent advancements in 3D-printed substrate fabrication techniques, highlighting their impact on energy and environmental applications.

The method presented here can pattern cells inside a droplet of bioink expanding the capability of bioprinting to control micro-structures. Bioprinted patterned micro-cartilage is comparable to native articular cartilage. The micro-cartilage repaired cartilage defects by self-assembling into macro-articular-cartilage of clinically relevant sizes and formed a preliminary zonal structure. Individual micro-cartilage can also be used for drug screening and cartilage development studies.

Experiments and calculations allowed a detailed explanation of the discharge/charge mechanisms of a Li-O₂ cell using a carbon electrode and high-DN solvent. It revealed a dynamic reversible change in the DMSO molecule resulting from interaction of LiO₂–(solvent)n, thereby confirming the solution mechanism for ORR through an unprecedented analysis of the electrolyte molecule using operando Raman, supported by simulations.

This study proposes a method to suppress interdiffusion in nickel-rich core/shell cathode materials by controlling the Mn oxidation state. The preoxidation of Mn in the cathode material precursor demonstrably reduces interdiffusion and improves interfacial stability with the electrolyte. This meticulously designed core/shell architecture further restricts interfacial side reactions and metallic deposition on both the cathode and anode during battery cycling.

Triboelectric nanogenerators (TENGs) with a convertible rectification feature, in which the direction of the charge flow generated by TENGs is systematically controlled by electrostatic breakdown over the course of slow and random mechanical stimuli, is reported, paving the path for the development of all-in-one nanogenerators and the incorporation of nanogenerators into wearable self-powered electronics in the near future.

The HIV-1 Gag polypeptide precursors are mimicked to create precursors of nanocages (PRECs). It is shown that in the presence of a protease, the precursors are cleaved to form subunits that are spontaneously self-assembled to generate PINCs (Protein-induced nanocages). The PINC formation is used to encapsulate a cargo and concurrently decorate the nanocages’ surface with a protein.

Inspired by the crystalline chitin component of crustacean exoskeleton and the multifunctionality of polyphenol, a facile immunoregulatory constructional design is proposed for engineering polyphenol-functionalized chitosan scaffolds with microchannel structure by directional freezing and alkaline salting out. These scaffolds exhibit satisfactory immune-regulatory performance and promote stem cell adhesion as well as osteogenic differentiation to enhance bone regeneration.

An S-type TMOF-10-NH₂/g-C₃N₄ (TMOF/CNNS) photocatalyst is synthesized and used to realize photocatalytic hollow optical fibers for CO₂ reduction with enhanced activity, yield, and light-energy utilization via electrostatic self-assembly. High CO₂ photoreduction and selectivity for CO production are demonstrated by the TMOF/CNNS-coated optical fiber obtained under optimal conditions, demonstrating the potential of the proposed approach for practical applications.

By engineering laponite nanosheets to form a vertically-aligned card-house structure, composite solid electrolyte with fast and stable ion transport channels is obtained. Lithium deposits uniformly along the channels on lithium anode and forms a homogeneous SEI layer during long-term cycling process, which contributes to the outstanding cycling stability of all-solid-state lithium batteries.

A composite material with energy storage, active electro-/photo-thermal de-icing and passive super-hydrophobic anti-icing properties is proposed. The top multifunctional layer exhibited efficient electro-/photo-thermal and super-hydrophobic performances. The oleogel material at the bottom layer can absorb energy during heating process and release it during the cooling process by phase transition, which can greatly delay the freezing time and save energy. This study provided a new way to manufacture multi-functional materials for practical anti-icing/de-icing applications.

A highly soluble and stable ɛ-Zn(OH)₂ is synthesized to prepare well-dispersed ZnO whiskers with an average aspect ratio of 41. The primary origin of high solubility and stability of ɛ-Zn(OH)₂ is expansion of the unit cell. The process exhibits an extremely high solid content of 2.5% and an overall yield of 92%.

An ultra-small amount of additive of a multi-functional polymer with intrinsic microporosity (PIM-1) is used to prepare a kind of binder-free electrode. PIM-1 modulates the solvation structure of LiPF₆ due to its unique structure and reduces the irreversible phase transition of the LiCoO₂ (LCO) cathode, thereby enhancing the cyclic stability and improving the rate performance.

The BFCS air electrode formed by Sc-substitution has significantly enhanced lattice oxygen mobility, creating abundant oxygen vacancies and active sites, which contribute to the adsorption and dissociation of oxygen species, mass transfer, and charge transfer electrochemical processes in electrode reactions (ORR/OER).

This study investigates the impact of aluminum doping on Li_1.26Ni_0.15Mn_0.61O₂, a lithium-rich, cobalt-free layered oxide. The undoped material has a monoclinic structure, while the Al-doped materials contain a more stable rhombohedral phase at the particle edges. This work quantitatively elucidates the stabilizing effect of the rhombohedral shell, shedding light on mechanisms that enhance the electrochemical stability of lithium-rich layered oxides.

A bismuth-based ultrathin nanosheet with massive oxygen vacancies is exploited for highly efficient tumor radiotherapy. The exposure of almost all atoms to environmental factors and the nature of oxycarbonates makes the nanosheet easily degrade into biocompatible species without causing any damage to the liver or kidney.

MPDA serves as a photothermal agent and is proved to be a high-loading carrier for GA. GA acts not only as a cytotoxic drug but also inhibits HSP90, sensitizing photothermal therapy. The GA-loaded MPDA nanoparticles are demonstrated can synergistically inhibit tumor growth, trigger immunogenic cell death, and increase activated effector T cells and inflammatory cytokines, suggesting a promising strategy to enhance the clinical therapeutic effect on TNBC.

A Cu_1.96S electrode material enriched with Cu vacancies is designed and synthesised by solvothermal and annealing process. It is found that the incorporation of Cu vacancies reduces the energy barrier of ion diffusion, as well as improves the electrical conductivity. Thus, the rate and cycling stability of Cu_1.96S is significantly improved for sodium ions storage.

A multifunctional additive (G@SiO₂@FeHP) is fabricated by in situ immobilization of silica (SiO₂) and iron phenylphosphinate (FeHP) onto the graphene (G) surface. The results demonstrate that the as-designed G@SiO₂@FeHP is a multifunctional, high-efficiency additive, and 1.0 wt% of it can simultaneously improve the fire retardancy, mechanical properties and thermal conductivity (λ) of epoxy resin (EP) yet effectively maintain the electrical insulation and dielectric properties.

A near infrared (NIR) photothermal-responsive underwater adhesive is designed by incorporating MXene-based nanoparticles within isocyanate-modified polydimethylsiloxane polymers. The underwater adhesive possesses tough adhesion in service and can actively detach as needed. The tough adhesion is attributed to the covalent bonds and hydrogen bonds at the adhesive-substrate interface. NIR-triggered property allows for easy and active detachment of the adhesive.

The tungsten doping induced local crystal distortion in CoFe-LDH, leading to a decrease in the crystal structure energy of CoFeW-LDH and a reduction in the formation energy of oxygen vacancies. The abundant presence of oxygen vacancies significantly lowered the barrier for cleaving HO─H bonds and impacted the coordination environment of tungsten atoms, consequently enhancing the performance of the hydrogen evolution reaction.

This study uses a low temperature plasma method to convert CO₂ into solid carbon at a sonochemically dispersed liquid Ga/Ni alloy. This results in the formation of carbon decorated Ni─GaOOH particles that are then used as an electrocatalyst for nitrate conversion to ammonia. This results in an electrocatalyst that is stable with good rates of NH₃ production of 26.3 µg h⁻¹ mg_cat⁻¹.

An innovative coordination-assisted strategy can be exploited to construct amorphous–crystalline heterostructures from heterometallic coordination polymers with high Ni contents. The favorable amorphous–crystalline interface and Ce–O–Ni interactions generated in the heterostructures derived from the coordination polymers facilitate charge transfer, thereby amplifying the electronic delocalization of Ni atoms and improving the activity for the oxygen evolution reaction.

To demonstrate the practicality of the indigenously developed pouch cell, larger capacity cells (2×375 mAh in series) are integrated into a drone battery management system.

It is still challenging to atomically resolve the local structures of the complex Ruddlesden–Popper (RP) interfaces in lead-halide perovskites. Combining different imaging modes in electron microscopy, the multi-dimensional RP perovskite structures can be directly identified and analyzed in 2D images. These results provide real-space evidence for observing and studying the RP stacking process and help to better understand perovskite's structure-property relation, especially its complex local structures.

Based on MIL-68-NH₂@COF_TP-TA@CdS reticular heterojunction, a photoelectrode-gated OPECT biosensor is presented, which is exemplified by the Cu²⁺-triggered electron trap formation linking with a sandwich immunoassay. The reticular heterostructure enhances the regulation of the channel by the photosensitive gate. At zero gate bias, this OPECT biosensor exhibits high gain in response to light and good analytical performance for NSE.

Residual Ni(SO₄)₂∙6H₂O enhances OER activity. Residual Ni(SO₄)₂∙6H₂O optimizes the bonding strength of adsorbate. NiFe@NiFe(OH)₂ exhibits a low overpotential of 241 mV at 10 mA cm⁻² and robust durability at 100 mA cm⁻² for 100 h.

In situ forms a dual anionic PO₄³⁻/MoO₄²⁻ layer protects the active sites NiOOH originating from Ni₂P@NiMoO₄, promoting an outstanding oxygen evolution activity with a current density of 1 A cm⁻² at an overpotential of only 370 mV and maintaining remarkable stability up to 500 h in 1 m KOH + seawater.

A reliable and robust synthesis of a functional tetrametallic nanoparticle type is presented, where a micro- and mesoporous PdPtIr shell is grown on Au nanorods. Multielemental synergy can expand the functionality of such composite nanoparticles enabling their use in catalytic and electrocatalytic application. The synthesized nanocatalyst shows excellent stability and performance.

Crystal phase engineering is proposed to improve the performance of FeOOH toward electrochemical nitrate reduction to ammonia (NRA), with δ-FeOOH exhibiting superior NRA performance. Mechanistic studies unveil that hydrogen bonding interaction formed between δ-FeOOH and *NO_x intermediates results in enhanced adsorption of *NO_x, and breaks the linear scaling relationship.

Multifunctional MoC_x carbon hybrid aerogel (MCP) aerogels with remarkable electromagnetic wave absorption properties, robust, and self-cleaning are fabricated from η-MoC/Co@NC-800 that exhibits the excellent balance of graphitization degree and porous defects.

Oleosins can stabilize nematic liquid crystal droplets for use in biological sensing, while chiral nematic liquid crystals can instead directly be used to sense the presence of oleosins.

Pd metal loading on bacteria cells and electron donor selection controls size, Pd(II):Pd(0) ratio, and cellular location of bio-Pd nanoparticles. The study describes the novel synthesis of highly catalytically active microbe-supported PdO nanoparticles. Bio-Pd is synthesized with the fastest initial reaction rate for 4-nitrophenol reduction by bionanoparticles. Comparable activity to commercial Pd/C catalyst is observed for Suzuki–Miyaura crosscoupling reactions.

Using silica gel glass as a supporting medium and employing FsLDW, conductive multilayered and 3D gold/palladium structures are printed. How the pore size of the silica gel glass affects the electrical conductivity of printed metal wires is systematically examined. This 3D printing method is versatile and offers expanded opportunities for applying metallic micro/nanostructures in optoelectronic devices.

The elaborately prepared Fe₃O₄-FeTe@MCM loaded the highly dispersed nanoparticles with built-in electric field in the hollow multi-channel nanospheres, which can regulate the bidirectional catalytic conversion of polysulfide through the lithophilic and sulfophilic sites at the heterogeneous interface and the charge redistribution to achieve high performance lithium-sulfur batteries.

Solvent-free dry-electrode processing enables fabricating the extremely high-loading sulfur and Li₂S cathodes by maintaining a stable electrode architecture with fibrillated PTFE binders. The dry-processed electrodes demonstrate scalability and practicality, as evidenced by their application in both single-layer and multi-layer pouch cells.

Utilizing hydrophilic and biocompatible MAF-7 as carrier, the activity improvement of artificial enzymes and sustainability of encapsulated natural enzymes can be achieved contrasting with ZIF-8. Detections for specific substrates or inhibitors with favorable sensitivity are accomplished attibute to the excellent performance of the cascade biocatalysis system.

Pam3FDA, a representative molecule of an immuno-stimulating antiviral system (ISAS) combining the TLR1/2 agonist Pam3CSK4 with multivalent influenza-binding peptides, shows no cytotoxicity up to 500 µM and potent H1N1 inhibition (EC₅₀ = 20 nM) with an irreversible mechanism. It also retains dendritic cell maturation stimulation, crucial for inducing an adaptive immune response to influenza infection.

In this work, a multi-functional and flexible AgNPs@MXene heterostructure-decorated graphite felt for wearable thermal therapy is prepared. The resultant film exhibits remarkable Joule heating performance (reaching 128 °C within 100 s at 2.7 V), superior electromagnetic interference (EMI) shielding effectiveness (53 dB), and exceptional antibacterial activity (>95% anti-bacterial rate toward Bacillus subtilis, Escherichia coli, and Staphy-lococcus aureus).

A novel, self-assembled DNA-based composite designed to enhance mesenchymal stem cell (MSC) therapy for skin wound healing is presented. The composites demonstrate the ability to promote MSC engraftment at wound sites, enhance their proangiogenic viability, and accelerate wound closure. This stem cell-based therapeutic strategy of engineered DNA composites represents a promising platform for optimizing wound repair and tissue regeneration.

Urchin-like multivalent sulfur vacancy-rich NiCo₂S₄@MnO₂ heterostructures are synthesized by a facile and scalable in-situ hydrothermal method for ambient nitrogen (N₂) reduction to ammonia. The Sv-NiCo₂S₄@MnO₂ heterostructures signify a high electrocatalytic N₂ reduction to ammonia (NH₃) in the basic electrolyte (0.1 м KOH) at room temperature and ambient pressure, as confirmed by both experimental and calculation results.

The textured MoO₃ film is grown on VO₂ layers to fabricate VO₂/MoO₃ heterojunction optoelectronic synapse device. Benefiting from the highly efficient light harvesting and the unique interface effect, the device not only exhibits electrical synaptic functions, but can induce advanced photonic synaptic functions at optical communication wavebands. This work provides effective strategies to facilitate neuromorphic computing integrated with infrared optical communication.

A straightforward approach is proposed to develop rich closed pores in pinenut-derived carbon to improve Na⁺ plateau storage by adjusting pyrolysis temperature. The optimized sample, namely the pinenut-derived carbon at 1300°C, shows a high Na-storage capacity in both half-cells (278 mAh g⁻¹ after 800 cycles at 0.2 A g⁻¹), and the relationship between the structure and performance is kindly elucidated.

The heterogeneous NiCo−LDHs/Ni(Co)OOH as cathode in mild AZIBS for the first time, is in situ constructed using the high-potential and large-cycles electrochemical cycling activation. The abundant heterointerfaces and optimized electronic structure enable it to display high capacity and fast storage reaction kinetics.

Due to enhanced charge separation and maximized redox capability, S-scheme heterojunctions have shown bright prospects in photocatalysis. This work introduces a donor–acceptor conjugated polymer/CdS S-scheme heterojunction for photocatalytic H₂ evolution. The obtained composite demonstrates an impressive hydrogen production rate of 7.62 mmol g⁻¹ h⁻¹. The Cd─O bond formed at the interface facilitates the rapid charge transfer.

The in situ directional growth strategy of dual co-catalysts can effectively weaken the Coulomb force between photogenerated carriers, thus anisotropically driving the spatial anisotropic separation and efficient utilization of CdS photogenerated carriers. The composite catalyst 35MnO_x-CdS-MoS₂-3 exhibits excellent photocatalytic hydrogen evolution performance, with an apparent quantum efficiency of 22.30% at 450 nm.

Hybrid cellular nanovesicles (hNVs) are prepared by fusing M1 macrophage-derived nanovesicles (M1-NVs) and PD1-overexpressed tumor cell-derived nanovesicles (PD1-NVs) for enhanced cancer immunotherapy. The M1-NVs promote the repolarization of M2-like TAMs to M1-like phenotype and further increase the release of pro-inflammatory cytokines, resulting in improved immunosuppressive tumor microenvironment. Concurrently, the PD1-NVs block PD1/PD-L1 pathway, synergizing with M1-NVs to boost cancer immunotherapy.

This article presents a simple solvothermal method for synthesizing Cd_0.5Zn_0.5S nanocrystals with adjustable lattice strains. The lattice expansion in Cd_0.5Zn_0.5S suppresses electron–hole recombination and facilitates charge separation/transport. Moreover, the lattice expansion induces surface S vacancies and adsorbed OH groups, further enhancing the redox reactions. These unique features result in an impressive waste plastic-to-hydrogen conversion rate of 13.83 mmol g⁻¹ h⁻¹.

Using the Ga³⁺→Al³⁺ cation substitution strategy is used to adjust the defect distribution, and the oxygen vacancy is analyzed in detail as a key point in generating ML. In addition, combining the crystal structure and defects, the potential mechanism of Cr³⁺ ion ⁴T₂ and ²E energy level transition emission is deeply explored.

Under specific conditions, endosymbiotic cyanobacteria have the potential to aid mammalian cells in conducting photosynthesis. In particular, the cyanobacterium Synechocystis PCC6803 has shown the ability to partially alleviate ATP deficiencies in mouse macrophages when exposed to light. Notably, human embryonic kidney cells have been identified as more suitable candidates for establishing a permanent symbiotic relationship with Synechocystis PCC6803.

Au@mSiO₂-arg/ICG combines phototherapeutic and gas therapeutic features for efficient biofilm elimination. Under 808 nm light, ROS can cause the release of NO from l-arg. Meanwhile, NO suppresses the HSP70 expression to achieve mild PTT and reduces EPS via regulating c-di-GMP. The platform addresses concerns like bacterial heat resistance and offers the potential for NO-enhanced mild PTT and aPDT in clinical applications.

Healthy tendon stem cell-derived exosomes promote tendon-to-bone healing of aged chronic rotator cuff tears by modulation of macrophage polarization to attenuate senescence of tendon stem cells.

FeNi₂S₄ exhibits a superior water splitting activity compared to Fe₂NiO₄ in alkaline conditions, despite hydroxylation and oxidation of the electrode surface.

The electrospinning strategy combined with pore-controlled engineering to effectively construct highly accessible active graphitic-N/pyridinic-N sites on the lignin-based flexible freestanding air electrode (FFAE) with multi-hollow channel structures, resulting in excellent ORR/OER activity and high-performance flexible zinc–air batteries. This work provides a potential way to design and produce high-performance biomass-based bifunctional FFAE for electrochemical energy devices.

Density functional theory calculations screened benzaldehyde from six species of oxygen-containing functional group substituted benzene derivatives to construct a donor–acceptor structure with g-C₃N₄. Benefiting from benzaldehyde as an electron donor to modulate the HOMO, the synthesized BzCN photocatalyst possessed enhanced light absorption and carrier separation capabilities to drive reactive oxygen species generation for the degradation of tetracycline hydrochloride.

This work proposed a high-voltage, specialized direct current triboelectric nanogenerator based on dual strategy of dielectric enhancement layer structure and lubricating oil. It can output 3 kV voltage with a high surface charge density of 320 µC m^-2, enabling it to continuously power carbon nanowires that emit negative air ions for air purification purposes.

Co PANI/C as a multifunctional catalyst for HzOR, ORR and HER in alkaline conditions for applications in seawater electrolysis to afford hydrogen gas and in Hz/O₂ fuel cell.

A biomimetic mineralization synthetic strategy is developed to construct flower-like cobalt selenide/reduced graphene oxide (Bio-CoSe₂/rGO) heterostructures, which can build complex architectures by tuning the nucleation and growth processes, and external thermal energy, high-pressure/temperature or structure-directing agents are not required. The Bio-CoSe₂/rGO heterostructures show superior desalination performances due to the large interface area, exceptional charge/ion transport, and sufficient adsorption sites.

The active center competitive mechanism in F-NiCo LDH for OER from the points of view of both e_g orbital and the valence.

Pt single atom is anchored on CdS nanosheet for lignocellulose photoreforming. The strong metal–substrate interaction can induce a downward shift valence band for Pt_SA-CdS, thus enabling the generation of •OH/OH⁻ redox shuttle under benign condition. Additionally, the Pt single atom with thermoneutral $$\Delta G_{\mathrm{H}}^{\mathrm{*}}$$ can serve as active sites for HER. These features contribute to a remarkable activity for lignocellulose-to-H₂ conversion.

This work reports a portable visual sensor by integrating a multi-mode sensing platform of photo-controlled host–guest specific molecular recognition and electrochromism, which can perceive optical and electrical dual-mode stimuli, and efficiently realize light-controlled stealth in military camouflage and information erasure through the visual anti-counterfeiting signal of human–computer interaction.

An excellent strain-induced flexoelectric potential by an effective defect engineering strategy suppresses the recombination of electron–hole pairs, thus substantially improving the catalytic activity of the 2D TiO₂ nanosheets in a dark environment.

The surface chemistry of Ag structures of different dimensions (0D/1D/3D) with MPTS ligands under benign conditions to prevent the deterioration of the structural, optical, and electrical properties from sulfidation is engineered. This anti-tarnish technique prevents the loss of plasmonic effects and F–P cavity resonances. It leads to the highly sustainable performance of LED reflectors, conductive paints, flexible electrodes, and wearable strain sensors.

Erythrocyte membrane camouflaged nanotheranostics are developed for fluorescence/photoacoustic dual-modal imaging-escorted self-oxygenation photodynamic therapy.

An ultra-convenient carbothermal shock method is used to synthesize FeCoNiCuZn HEAs while lignin-based carbon fiber paper (L-CFP) as carbon support. Based on the pointing electron enrichment within L-CFP/FeCoNiCuZn HEAs heterointerfaces, low-frequency evolution is achieved by a “sacrificing” strategy. This work is of great significance for the regulation strategy of customized HEAs-based EM response.

A nanocomposite of Bismuth nanoparticles in heteroatoms (N and O)-doped carbon framework exhibits remarkable remarkably well-retained energy density at a high-power density (11107 W kg^–1 at 98 Wh kg^–1) in potassium-ion hybrid capacitor as a negative electrode. Advanced operando synchrotron X-ray diffraction and Raman spectroscopy reveal a reversible mechanism of ″absorption-alloying″ during (de-)potassition.

A highly fluorinated sulfonate (TFSF) is applied as diluent to prepare localized high concentration electrolyte (LHCE) with nonflammability, and the hydrogen bonding interactions between diluent and solvent are first proved to be critical for the electrolyte solvation structure and solid electrolyte interphase (SEI).

Enhancing the catalytic activity of single-atom metal-nitrogen-carbon (M─N─C) catalysts for volatile organic compounds through carbon-defect engineering is challenging yet meaningful. This study offers a rational approach to boost the catalytic ozonation activity of M─N─C catalysts and provides deeper insights into the influence of periphery carbon environment on the properties and performance of metal-N₄ sites.

A dual-mode TENG is proposed to harvest both electrostatic energy at liquid-solid surface from a droplet TENG and elastic potential energy of the vibrated cantilever from a contact-separation TENG. Triggered by small droplets, the flexible cantilever beam can produce amplified output charges. An array system is also demonstrated for building self-powered system, offering promising applications for efficiently harvesting raindrop energy.

A series of novel 2D conductive metal-organic frameworks (c-MOFs) named M-TOCs are constructed by coordinating a conjugated linker of tetraoxa[8]circulene derivative (8OH-TOC) with corresponding metal ions. In virtue of their decent electrical conductivity and good redox activity, they performed high reversible capacity, decent cycle stability and excellent rate capability as the cathode materials of aqueous zinc ion batteries, indicating their great potential in energy storage.

A novel composite catalyst CoNi-CoN₃/C containing CoNi alloyed nanoparticles and CoN₃ moieties for oxygen electrode reactions is constructed with strong interactions of composite sites, which optimizes the adsorption strengths of intermediates and facilitates the fast kinetics of electrode reactions. Both aqueous and flexible quasi-solid-state rechargeable ZABs using CoNi-CoN₃/C display large power density, high specific capacity, and strong durability.

This article explores the breakthrough in depression treatment through the novel nanoplatform BP-RVG29@HYP (BRH), which effectively overcomes the blood-brain barrier challenges. Leveraging black phosphorus nanosheets and advanced delivery methods, BRH significantly alleviates depressive symptoms and oxidative stress in mice, with minimal side effects. This pioneering approach marks a significant stride in antidepressant drug development.

Polythiophene is in situ polymerized on Li metal by plasma polymerization as a flexible polymer protective layer. The Li anodes modified by the plasma polymerized polythiophene are self-stabilized on Li metal due to the chemical reaction of Li and the plasma species of thiophene groups, showing much higher structural stability, and the symmetric cells can be stably cycled for 8000 h.

FeCo–HNC, featuring atomically dispersed dual metal sites and a hollow cubic structure, exhibits a half-wave potential of 0.907 V. Integrated into an aluminum–air battery, it attains unprecedented power densities of 804 mW cm⁻² in ambient air and 1200 mW cm⁻² in an oxygen-rich environment, showcasing stability over an impressive 200 h continuous operation.

Amino-acid-encoded multi-morphological building block platform: A universal building block cysteine (Cys)(SEt)-X-2-cyano-benzothiazole (CBT) is employed here as an ideal platform for building nanostructures with diverse morphologies. After caging the Cys with stimulus-responsive sites and modifying X with probes/drugs, multi-morphological and multi-functional nanocarriers can be easily prepared for a broad range of biomedical applications.

Early detection and treatment of Alzheimer's disease (AD) are achieved through a novel liposome-based platform. In relevant Caenorhabditis elegans AD models, biocompatible cyclic d,l-α-peptide (CP-2) conjugated liposomes (CP-2-LPs) enhance cognition and extend lifespan by reducing toxic Aβ levels. Administration of fluorescently labeled CP-2-LPs to young AD mice enables precise diagnosis, underscoring their value for early detection and targeted therapy.

Strain self-adaptive strategy is proposed to achieve the appealing stability and high initial Coulombic efficiency of iron selenide with a high tap density. Systematical characterizations confirm the self-adaptive homologous heterointerface alleviates the structural strain of the anode and improves reversibility of the transformation reaction. This work provides an ingenious insight for other electrodes with excellent electrochemical performance.

SPOOC, a fast, accurate, and wireless device, quantifies choline in infants' formulas in home settings. It utilizes laser-induced graphene as a platform for choline potentiometric detection and features a detachable potentiometric device that wirelessly transmits data to nearby smartphones. This device assists parents in ensuring infants receive sufficient choline, promoting better neural and muscular health.

A novel hierarchical p-Fe₂N/n-VN heterostructure with optimal electronic structure is constructed as the electrode of a bifunctional lithium–sulfur battery. The formed p–n heterostructures have reasonable D-band centers, achieving more π* and medium σ* bonding electrons to occupy in filled and anti-bonding states; thus, dynamically balancing the electrochemical reaction processes of S and Li.

Herein, a step-wise in situ thermal treatment and hydrothermal strategies are implemented to synthesize unique endogenous MoS₂ nanosheets coupling with Mo₂C-MoN nanowires directly on carbon cloth (denoted C/MMMS). The unique coordination bonding of Mo−C/N−Mo-S, multidimensional morphology, and rich heterojunction structure endow the entire architecture with extraordinary structural stability, optimized Li⁺ storage mechanism, improved charge transport, and Li⁺ adsorption capabilities.

Utilizing the thermal-responsive microgel, a smart overheat limiter with negative feedback regulation between temperature and transmittance is developed, achieving photothermal therapy (PTT) without the risk of excessive heating and accidental skin tissue thermal damage. This innovative approach allows for a more controlled and intelligent PTT treatment, offering a promising advancement in medical technology.

Nucleic acid nanoparticle-loaded granular hydrogel scaffolds enhance transfection and provide sustained protein and virus expression.

A stable pH-universal photoelectrochemical photodetector is designed based on a whole single-crystal integrated self-supporting 4H-SiC nanopore array photoelectrode. The device delivers excellent photodetection performance with high responsivity, detectivity, external quantum efficiency, and rapid rise/decay times of 218.77 mA W⁻¹, 6.64 × 10¹³ Jones, 72.47%, and 17/48 ms, respectively, under 375 nm light illumination.

The [Mn-Co-Mo]O₆ octahedra are introduced into P3-K_0.45MnO₂ to optimize the local electron structure. The [MoO₆] propose an empty outermost electrons (4d05s0) orbitals structure and the smaller ionic radius and higher oxidation state can induce a second-order JTE distortion in the adjacent [MnO₆] octahedra. Co³⁺ do not induce Jahn-Teller effects due to the empty electron in e_g orbital.

Domain density modification coupled with the incorporation of trace indium in GeTe significantly elevates the peak figure-of-merit (zT) to 1.3 and achieves a 3% thermoelectric conversion efficiency at 700 K. These enhancements stem from strain redistribution via hot-pressing and carrier concentration optimization through the reduction of germanium vacancies, bypassing the need for additional doping.

High-valence nickel driven by phosphorus-oxygen terminals-rich species integrated on nickel foam substrate (Ni₂P-O-300) is constructed by an anion-assisted pyrolysis strategy, which promotes the rapid yet in situ formation of much high-valence nickel with a high reaction activity at a relatively low potential under electrochemical conditions. Resultantly, the hydrogen production efficiency and kinetic constant of electrooxidation of benzyl alcohol driven by Ni₂P-O-300 are 9- and 2.8- fold higher than that of Ni₂P-O-500 with the deficient phosphorus-oxygen terminals, respectively.

Herein, Fe-doped CuO spheres are prepared by spray pyrolysis and exhibit high selectivity and reversibility to hydrogen sulfide (H₂S) under high humidity. These superior H₂S sensing characteristics are essential for disease diagnosis of halitosis or asthma by breath analysis. Those unexpected high H₂S sensing performance is attributed to enhanced surface redox reaction by multi-valent Fe ion doping.

A space-confined chemical vapor deposition method is used to create ultrathin germanium telluride (GeTe) nanosheets, and the GeTe resonant bonding epitaxy results in thickness-dependent photoelectric properties. The ultrathin GeTe-based field-effect transistor exhibits excellent p-type behavior with an on/off ratio of 10⁵ and broad photodetection from 450–980 nm with a responsivity of 10³ A W^–1.

The replacement of O²⁻ ions in LLZTO with Cl⁻ ions can weak the anchoring effect of anions toward Li⁺, widen the size of Li⁺ diffusion channel and optimize the occupancy of Li⁺ at different sites, resulting in a reduction of the Li⁺ migration barrier and an improvement in ionic conductivity.

A radiometric nanocomposite hydrogel capable of co-delivering Doxorubicin and the Bcl-2 inhibitor ABT-737 is engineered, employing an optimized drug ratio of 5:1 (w/w) suitable for both in vitro and in vivo applications. The findings reveals a synergistic tumor inhibition effect with the co-delivery hydrogel. This innovative approach presents a transformative strategy for addressing drug resistance in chondrosarcoma chemotherapy, holding substantial promise for clinical applications.

A high-performance flexible Mg–air battery is demonstrated with powering blue flexible light-emitting diode (LED) arrays and red smart rollable wearable device in practical applications. Through low over-potential NiCo₂O₄ nanowires well immobilized on nitrogen-doped Ti₃C₂T_x, the efficient oxygen electrode contributes to significantly boost oxygen diffusion and delivers high power density of 9.8 mW cm^–2.

Unique yolk-shell structured Na₃V₂(PO₄)₂F₃ microspheres with synergistic regulation of both the crystal structure and the interface properties endows the cathode possessing high electronic conductivity and fast sodium ion diffusion kinetics, realizing the cathode with high-rate capacity and long-cycling life for sodium-ion batteries.

Single Fe atoms catalysts implanted in hollow TiO₂ nanospheres are prepared as electrocatalysts and anchoring sites for Li-S batteries, which tailor the electronic structure and reduce the energy barrier for sulfur transformations, further imposing strong sulfur immobilization and catalyzation. The corresponding Ah-level Li-S pouch cell delivers a high specific energy of 1.65 Ah, offering a promising route toward the practical high-energy-density Li-S battery.

A highly dispersed Co electrocatalyst with electron-deficient centers induced by B doping is constructed by a simple one-pot method. As a host of sulfur of room-temperature sodium-sulfur batteries, it achieves enhanced chemical adsorption toward polysulfides (NaPSs) and accelerates sulfur conversion. The preparation method is also suitable for metallic Ni electrocatalyst.

An atomic layer deposited Al₂O₃ interlayer is employed to prevent the diffusion of Cd²⁺ cations and lower the interface defect density of Sb₂S₃/CdS heterojunction, resulting in a record half-cell solar-to-hydrogen conversion efficiency of 2.78% for the Ag:Sb₂S₃/Al₂O₃/CdS/Pt photocathode.

Treating the mesoscopic TiO₂ electron transport layer with guanidine sulfate facilitates a dual passivation by inducing in situ reactions that suppresses non-radiative recombination and promotes charge extraction in printable hole-conductor-free mesoscopic perovskite solar cells with carbon electrodes. The treatment ultimately diminishes the open-circuit voltage loss and improves the power conversion efficiency from 17.51% to 18.70%.

Based on nano-interface engineering, a nano-heterostructure catalyst (MnCu/C) composed of MnO and Cu is fabricated. The construction of electron bridge Mn−N/O−Cu accelerates the reduction of Cu²⁺, which generates more ROS (¹O₂ and ·OH) and prevents Cu²⁺ from oxidizing H₂O₂ to form O₂^•−. The rational design of dual-site catalyst provides new insights into the effective activation of H₂O₂.

A facile and generally applicable VO_x matrix confinement strategy is demonstrated for controllable synthesis intermetallic compounds, and the as-synthesized sub-3 nm L1₀-PtCo exhibits impressive catalytic activity and stability in fuel cells.

The metal-free carbon materials g-C₃N₄/CNT provided here offers an alternative for developing cost-effective and efficient 2e⁻ ORR catalyst via facile π–π interaction strategy, which further complements the well-reported approaches to modify carbon-based materials such as introduction of oxygenated groups and heteroatom doping.

A functional layer on the Zn anode is built by a gelatin-assistant corrosion and low-temperature pyrolysis method. The modification mechanism of the functional layer for Zn anode is revealed in detail. The modified Zn anode exhibits superior performance in both half cells and full cells, showing a good application prospect for this promising strategy.

The all-ceramic SERS substrates prepared by three different crystalline phases of molybdenum boride powders have good SERS activity, which is closely related to their crystal structure. Among them, β-MoB has the best SERS enhancement activity, and the enhancement factor of 5 orders is comparable to that of noble metals. This all-ceramic SERS platform shows promising applications in corrosive and high temperature environments.

This study explores the synthesis of Tellurium sulfur oxide (TeSO_x) and Tellurium selenium oxide (TeSeO_x) nanomaterials via vapor deposition, highlighting their unique photo-synaptic responses to different optical stimulations. Further, TeSeO_x multiropes demonstrate their potential in optical neuromorphic computing through enhanced electrical performance and high responsivity achieved with low voltage and light intensity.