Molecular design of cross-linked single-ion polymer electrolytes enabling robust LiF-rich solid electrolyte interface for stable lithium metal batteries.

Interface compatible organic-inorganic solid electrolyte with intimate electrode/electrolyte interfacial contact for dendrite-free Li metal batteries.

Flexible, self-adhesive and eco-stable bioelectronics with dual-network phytic acid-based ionic hydrogel for biomechanical and physiological signal monitoring.

Electrically conductive membrane-based anammox MBR with electrochemical assistance: an effective strategy for simultaneous mitigation of membrane fouling and enhancement of nitrogen removal.

Bioinspired flexible piezoresistive sensor with cross-gradient architecture for high-performance tactile sensing.

An ultrasensitive electrochemical immunosensor constructed via Ag-GO-Nf nanocomposites for the detection of pefloxacin.

AI-enhanced diagnosis of atrial arrhythmia using 3D-printed origami ECG sensors.

Background: Contemporary cochlear implants (CIs) face unresolved dual challenges: biomechanical-electrochemical mismatch at the electrode-tissue interface and progressive spiral ganglion neuron (SGN) degeneration, severely limiting long-term auditory restoration. Integrating regenerative medicine with bioelectronic engineering offers promise to overcome these bottlenecks. Methods: A biohybrid neural interface was developed by embedding neural stem cells (NSCs) in photopolymerized poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)/collagen hydrogel. Physicochemical properties were characterized via rheometry, electron microscopy, and electrochemical impedance spectroscopy. In vitro NSC responses (proliferation/differentiation) were quantified with EdU/Tuj1 assays. Therapeutic efficacy was evaluated in guinea pigs with ouabain-induced auditory neuropathy using auditory brainstem response (ABR) thresholds and immunohistochemical SGN quantification, comparing CI-alone versus NSC-hydrogel-CI groups. Results: The photopolymerized PEDOT:PSS/collagen hydrogel demonstrated cochlear tissue-matched viscoelastic properties (storage modulus: 8.7-12.4 kPa) with injectable sol-gel transition capability, while exhibiting enhanced bioelectronic coupling through high electrical conductivity (1.3 ± 0.1 S/m) and 97.7% reduction in charge transfer resistance. This electroactive microenvironment significantly promoted NSC proliferation (+51.6%) and neuronal differentiation (+76.4%) in vitro, effects further amplified by CI stimulation to achieve +71.5% proliferation and +23.4% neuronal differentiation. In vivo evaluation using ouabain-induced auditory neuropathy guinea pigs revealed substantial functional recovery, with ABR threshold improvements of 18.8-28.8 dB across 4-12 kHz frequencies by post-operative day 14, correlating with significant SGN regeneration in the apical turn (+11.14 cells/0.01 mm²), whereas CI-alone controls exhibited negligible recovery. Conclusions: This NSC-laden conductive hydrogel establishes a self-reinforcing therapeutic paradigm that simultaneously resolves electrode-tissue mismatch through optimized bioelectronic interfacing and reverses neurodegeneration via stem cell-mediated SGN regeneration. The dual-function platform pioneers active neural repair for next-generation neuroprosthetics.

Hierarchically porous CoMn-N-doped carbon nanotubes as efficient electrocatalyst for oxygen reduction reaction.

Pyridazine-based hydrogen-bond engineered lanthanide HOFs for dual-function ratiometric sensing and high proton conduction

Heavy metal distribution in MSW-derived soils and migration within the subjacent soil strata of landfills.

Interface engineering to construct BN@SiO2 multilayer structure for thermal interface materials with high thermal conductivity and low dielectric loss

Theoretical and experimental study on a fast proton transport pathway in CeO2-coated SrTiO3-δ through surface vacancy engineering for low-temperature ceramic fuel cells.

Purpose This paper aims to systematically review the directional transfer and low-temperature interconnect packaging of nano metal materials, analyze their sintering mechanism, transfer methods and interconnection performance, overcome the reliability bottleneck of traditional interconnection materials in high-temperature and high-power environments and promote their application in three-dimensional integrated packaging and high-density packaging. Design/methodology/approach Through literature review and analysis, the sintering mechanism of nanometal materials is sorted out, and the reported transfer technologies, including magnetron sputtering, pulsed laser deposition, liquid bridge transfer, micro-contact printing, selective wetting and electrohydrodynamic jet printing, are compared and investigated in terms of transfer accuracy, pattern resolution and interconnection performance. Findings Nano metal can be sintered at low temperature to form high-strength interconnection structures with high electrical and thermal conductivity and high-temperature resistance due to the small size effect and high surface activity. Different transfer techniques exhibit different performance in terms of resolution, uniformity and alignment accuracy, among which magnetron sputtering and pulsed laser deposition are suitable for high-coverage deposition, while liquid bridge transfer and selective wetting are suitable for patterned transfer. Originality/value This review provides a systematic comparison and performance evaluation of directional transfer and low-temperature interconnect packaging of nano metal materials, points out the limitations of current transfer technologies in terms of precision, efficiency and reliability and proposes that future research should focus on process optimization, defect control and the study of multi-physical field coupling mechanisms, providing theoretical support and technical references for high-density interconnect packaging.

Electric insulation, high thermal conductivity, and ultra-high EMI shielding composite films with a Janus structure

High-performance humidity sensors have received widespread attention for their wide use in healthcare, archaeology, electronic device manufacturing, etc., thus developing humidity sensors with wide sensing range, high response, narrow humidity hysteresis, fast response/recovery, and excellent stability are urgently needed. Humidity-sensitive materials are the core of humidity sensors. To obtain high-performance humidity sensors, humidity-sensitive materials should have high hydrophilicity, conductivity, and stability. Metal organic frameworks (MOFs) are promising humidity-sensitive materials due to their special characteristics, but often limited by the poor conductivity and hydrophilicity. Herein, a proton conduction enhanced CMC-Na/MOF-801/PPY (CMP) humidity-sensitive material was prepared through in-situ polymerization, and the corresponding humidity sensor was fabricated via drop-casting. The structure, functional groups, specific surface area, and element distribution of the CMP material were investigated by powder X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), N<sub>2</sub> sorption isotherm, transmission electron microscopy (TEM), and energy-dispersive X-ray spectroscopy (EDS). The abundant hydrophilic groups and continuous hydrogen bond network lead to tight dependence of the proton conductivity and impedance of the sensing material on the humidity. The results show that the optimized CMP sensor is highly sensitive to humidity change with high response of 516.7 at 43% RH and 1.24×10<sup>5</sup> at 85% RH, narrow hysteresis of 1.9% RH, and short response/recovery time of 2.8 s and 1.2 s in the humidity range of 7–85% RH. Compared to reported MOFs-based humidity sensors, the CMP sensor exhibits unique technical characteristics. Further, the humidity sensing mechanism of the CMP sensor was investigated through a combination of material characterization, water adsorption kinetics, carrier concentration, complex impedance spectroscopy (CIS) plot, and equivalent circuit (EC). As proof of concept, by monitoring the humidity on the finger surface, we evaluated the potential applications of the CMP sensor in noncontact sensing. Moreover, a palmar hyperhidrosis diagnosis system based on the CMP sensor was assembled, realizing quick, intuitive, and accurate diagnosis the severity of palmar hyperhidrosis. It is believed that this work provides a reasonable strategy for constructing high-performance humidity sensors.

Additively-manufactured Al-0.3Zr-0.2Ce-0.2Cu alloy with high creep resistance and electrical conductivity

Metal-free electrocatalytic dechlorination of chlorinated ethenes using bifunctional biochar cathode: adsorption-coupled electrocatalytic reduction mechanism.

First - Principles investigation of electronic structures and thermoelectric properties of GaX (X = N, P, Sb, As) III-V compounds.

Silane-networked UiO-66-NH₂ enabled high-performance composite proton exchange membrane in water electrolysis.