Nature Communications
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2026
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IF 18.1
Liu Wenchao,Duan Lian,Zhang Xiangyu,Zhu Xinyi,Ge Yongxin,Xu Guoheng,Si Zhixiao,Dai Jiqing,Chang Wenbo,Zhang Miliang,Lan Ronghua,Hu Zhijun,Chen Ruotian,Hengphasatporn Kowit,Shigeta Yasuteru,Xiao Kai
Biological vision acquires external information through light-induced transmembrane ion transport, generating electrical impulses. Emulating the dual visual functions of photoreceptors and photosynapses through light-modulated ion transport presents a significant challenge. Herein, we present a bioinspired light-regulated nanofluidic iontronic device that can mimic biological visual functionalities, realized through an engineered carbon nanotube and molybdenum disulfide (CNT/MoS 2 ) heterostructure. This bioinspired device combines two key functionalities of photoreceptor-like optical sensing and photosynaptic signal processing with dynamically adjustable polarity-switching behavior, achieved via bias voltage–modulated transient photoresponse speeds. Both theoretical and experimental results prove that light-modulated ion transport originates from the heterointerface-induced asymmetric photovoltage generation across CNT/MoS 2 nanotube. Furthermore, we demonstrate its implementation for both accurate orientation recognition and reliable fingerprint detection under varying incident light angles. The device’s bidirectional photoresponsiveness highlights its unique advantages for adaptive visual simulation systems.
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ELECTROCHEMISTRY COMMUNICATIONS
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2026
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IF 4.2
Junhao Wu,Zongfeng Jiang,Xindi Zhao,Tingting Lan,Mingxing Yu,Zhou Yu,Yue He,Xinyue Qu,Zhihong Wang,Deling Kong,Chang Liu,Kaixuan Zhang,Tao Ming
Continuous monitoring of physiological pH is essential for disease diagnosis and health management, yet developing minimally invasive implantable sensors with adequate stability remains challenging. We developed a micro-electrochemical pH sensor fabricated on a flexible gold wire substrate modified with a platinum black and polyaniline nanocomposite. Through a two-step electrochemical deposition process, a porous platinum nanostructure was constructed to increase the electrochemically active surface area, providing a stable scaffold for the subsequent polyaniline coating. The resulting sensor displayed a linear response from pH 4 to 10 with a sensitivity of −45.2 mV/pH (R 2 = 0.998) and intra-batch reproducibility with a coefficient of variation below 1.4%. Specificity tests confirmed negligible potential drift in the presence of common interfering ions. The sensor's practical applicability was validated in complex biological environments; in diluted serum, it maintained a stable baseline and responded rapidly to pH fluctuations, effectively resisting biofouling. In vivo experiments involving subcutaneous implantation in an anesthetized mouse successfully tracked continuous pH variations induced by chemical stimuli. After seven days in phosphate-buffered saline, the sensor retained 78.5% of its initial response. This work presents a robust, easily fabricated microsensor strategy promising for continuous in vivo monitoring of pH.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Chao Guo,Yinping Liu,Yang Zhou,Chunming Xu,Quan Xu,Tianhang Zhou,Honglei Shi,Xiangping Zhang,Yingchun Niu
Iron‑chromium redox flow battery (ICRFB) offers an attractive technological pathway for low-cost, grid-scale energy storage integrated with renewable energy sources. However, the slow Cr 3+ /Cr 2+ redox kinetics at the anode and the coupled parasitic hydrogen evolution reaction (HER), particularly at high current densities, remain major obstacles to their practical application. This study reports a layered structure coupled with oxygen vacancy (OV) engineering, which decouples the Cr redox activation and HER suppression processes to fully unlock the catalytic potential of halogenated bismuth (BiOX, X = Cl, Br, I). The designed BiOX catalyst leverages lattice distortion induced by halogen elements to create abundant OVs, while the asymmetric Bi-O-Cr bridging structure accelerates electron transfer during the Cr 3+ /Cr 2+ conversion. The mesoporous layered framework ensures rapid accessibility of redox-active species. By in situ anchoring this OV-rich BiOX catalyst onto porous carbon fiber, a high-performance electrode is successfully fabricated. Consequently, the ICRFB with OVs-rich BiOX-modified electrodes achieves an energy efficiency of 84.5% at 140 mA cm −2 , with exceptional stability over 400 cycles. This work elucidates the multifunctional role of OVs in BiOX for synergistically boosting Cr redox activity and mitigating parasitic HER, providing insights for the rational design of high-efficiency catalysts for ICRFB.
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Nature Communications
·
2026
·Vol. 17
·期 1
·2050
·
IF 18.1
Zhong Weixu,Gu Xiaosong,Feng Xuezhen,Jin Shengyao,Shangguan Yangzi,Fan Hao,Cheng Wenhan,Liang Jiaxiang,Hu Jian,Bai Yufei,Chen Hong
Given the escalating global demand for lithium resources, optimizing electric energy consumption in the electrochemical dual-oxidation (EDO) process, which includes both electrode oxidation and electrocatalytic oxidation, for lithium leaching from spent lithium-ion cathodes, is imperative. Herein, we propose an energy-effective two-stage continuous oxidation method for lithium leaching from various composition spent ternary lithium-ion batteries (NCM) cathodes. Coupling EDO (stage I) with soaking relaxation (stage II) enables both commercial and spent LiNi 1/3 Co 1/3 Mn 1/3 O 2 (NCM111) cathodes to achieve optimal electric energy efficiencies, with lithium leaching efficiencies of 99.87% and 98.12%, respectively. A comprehensive mechanism study reveals that the EDO not only drives lithium leaching from NCM111 lattice at stage I, but also effectively induces the transformation of lattice oxygen (O 2- ) into oxidized lattice oxygen (O n- , n < 2), thus driving the continuous lithium leaching at stage II with 49.78% reduction in electric energy consumption. This work unravels the electrical energy profile and structural dynamics during the EDO lithium leaching process, which paves the way for implementing the EDO method for the industrial sustainable recovery of critical metals.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Lihan Liu,Yuhan Guo,Yuxin Wang,Senjian Han,Lina Xu,Zengyu Ma,Shiqiang Wang,Tianlong Deng,Zhenyu Liao
Zinc ferrocyanide (ZnFC) composites exhibit high selectivity for cesium, but conventional bulk forms suffer from slow mass transfer. In this work, ZnFC was anchored onto exfoliated α-phosphazene ( E -ZrP) nanosheets via an in-situ growth method to construct ZnFC@ E -ZrP composites, which were further fabricated into ZnFC@E-ZrP/PSf adsorption membranes. The two-dimensional E-ZrP support inhibited ZnFC agglomeration and enhanced Cs + mass transfer through shortened diffusion paths and a surface P–OH-induced electronegative field. Experimental results indicated that ZnFC@ E -ZrP exhibited Cs + adsorption properties significantly surpassing that of the α-ZrP support, along with good acid-base stability and recyclability. The corresponding membrane combined rapid transport from E -ZrP with precise capture from ZnFC, achieving adsorption equilibrium within 5 min in filtration and maintaining >98% Cs + recovery from geothermal brine under high ionic competition. The strategy demonstrated in this work enables the design of efficient materials for rapid cesium separation.
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ELECTROCHIMICA ACTA
·
2026
·
IF 5.8
Longying Zhao,Jiayu Chen,Donglin Xiang,Mierban Dawuti,Laping He,Yuangen Wu,Han Tao
Residual organophosphorus pesticides (OPs) in food pose a severe threat to public health, necessitating simple and sensitive on-site analytical methods. In this study, a signal-off electrochemical sensing platform for OPs was constructed based on the OP-induced inhibition of silver deposition triggered by red kidney bean esterase (RKBE), coupled with the signal amplification of a CuNi dual-atom catalyst (CuNi-DAC). RKBE catalyzes the hydrolysis of α-naphthyl acetate to produce α-naphthol, which reduces Ag⁺ to Ag 0 deposited on the electrode. The electroactive Ag 0 undergoes oxidation to generate a prominent oxidation current, providing a sensitive sensing signal for detection. CuNi-DAC modification of the electrode accelerates charge transfer, provides more active sites, and effectively amplifies the sensing signal. Upon exposure to OPs, the activity of RKBE is inhibited, thereby suppressing the production of α-naphthol. This leads to a diminished Ag 0 generation and subsequent a weakened oxidation current. The decrease degree of current signal shows a positive correlation with pesticide concentration. Under optimized conditions, the fabricated sensing platform exhibits a good linear response range of 10 pmol/L-1000 pmol/L for fenthion with a low detection limit of 5.4 pmol/L. Spiked recoveries in cabbage and apple samples ranged from 93.3% to 108.5%, validating the sensing platform's practicality and reliability. This work offers a facile and cost-effective electrochemical sensing approach for on-site screening of OPs.
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COMPUTERS AND ELECTRONICS IN AGRICULTURE
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2026
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IF 10.3
Liru Yan,Bianxiang Zhang,Wei Zhou,Chao Feng,Caihong Zhang,Yan Zhang,Shaomin Shuang,Lihong Shi
Highly-intelligent user-friendly sensing strategies are becoming desperately demanded and indispensable in under-developed nations and resources-insufficient areas. Herein, an intelligent sensing platform has been successfully established incorporating smartphone with machine vision and deep learning function, 3D-printed handheld device, and paper microfluidic chip stained with tri-emission ratiometric-fluorescence (FL) carbon dots (TCDs). The intelligent system can quantify zinc ion (Zn 2+ ) and ethylenediaminetetraacetic acid (EDTA) only through a single-step operation on smartphone. TCDs, engendering bright blue and cyan FL as well as weak red one at 370 nm excitation, were prepared hydrothermally using tartaric acid and alizarin carmine. As-prepared TCDs exhibit continuous FL color transformation from blue to purple to blue with the addition of Zn 2+ and EDTA. Subsequently, TCDs-based paper chip is explored to enable field-portable sequential discrimination of Zn 2+ and EDTA. Intriguingly, the proposed sensor is utilized for fast and intelligent quantification of Zn 2+ and EDTA in soil filtrate, plant sap and tap water with a low detection limit of 3.8 μM and 7.9 μM, as well as wide linear correlations of 0–280 µM and 0–560 µM, respectively. It is eagerly anticipated that our methodologies will become the strong impetus for new round of technological transformation for analyte assay.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Mengnan Liu,Zhilong Zhou,Heqi Gao,Jiangfei Li,Jiayu Wang,Haitian Zhao,Zhongjun Cheng,Weihong Lu
Antimicrobial packaging has received extensive attention due to its significant role in ensuring food safety. However, direct contact between liquid foods and antibacterial surfaces often causes food residue and affects the release of antibacterial agents, ultimately deteriorating antibacterial performance. Here, we report a strategy to overcome this imperfection by grafting PDMS molecular brushes onto the thymol-loaded polylactic acid (PLA) films. The PDMS molecular brushes provide the surface with low adhesion to various food droplets (e.g., cola, milk, and vinegar). The sliding angles (SA) for these food droplets are all less than 30°. Meanwhile, it does not affect the release of the antibacterial agent (thymol). Based on these advantages, the film shows enhanced stability in its antibacterial properties, with bactericidal rates against E. coli and S. aureus reaching nearly 100%. The excellent antibacterial performance can be maintained even after contact with liquid foods, as evidenced by the nearly unchanged inhibition zones against E. coli and S. aureus (e.g., the diameter of the inhibition zone against S. aureus is slightly changed from 1.87 nm to 1.83 nm). Moreover, the optimal conditions to fabricate the film were also discussed in detail, such as the content of thymol, the alkaline hydrolysis time, the temperature and time for grafting PDMS molecular brushes. The work reports a strategy to guarantee stable release of the antibacterial agent through grafting PDMS molecular brushes onto packaging films, thereby effectively prolonging the shelf life of liquid foods.
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ELECTROCHIMICA ACTA
·
2026
·
IF 5.8
Yingshi Su,Sijie Chen,Weiran Zheng
Fluorine-doped tin oxide (FTO) is a cornerstone transparent conducting oxide in electrochemistry and materials science, yet its stability is often assumed rather than verified. This work presents a time-resolved operando investigation into the degradation of the FTO electrode, quantitatively mapping its chemical and electrochemical stability in acidic (0.5 M H 2 SO 4 ), neutral (1.0 M KCl), and alkaline (1.0 M KOH) environments. By employing time-resolved electrochemical impedance analysis and cyclic voltammetry-coupled electrochemical impedance spectroscopy protocol, we simultaneously track changes in FTO resistance and double-layer capacitance to deconvolve distinct degradation mechanisms. Our findings reveal that FTO stability is highly conditional. Alkaline media are universally corrosive, causing severe surface roughening (capacitance increases >90 %) and conductivity loss even during simple chemical immersion. In contrast, under acidic and neutral conditions, cathodic cycling drives surface roughening, whereas anodic cycling leads to surface smoothing. Most notably, the impact on conductivity is potential-specific: anodic polarization improves conductivity in neutral KCl but is destructive in KOH, where stannate (SnO 3 2− ) formation causes the largest rise in resistance (+7.3 %). By correlating electrical parameters with specific redox processes, this study provides a quantitative framework for understanding FTO degradation and establishes critical operating windows to ensure FTO reliability in electrochemical applications.
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MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Haiyue Yu,Zimin Yao,Guoliang Zheng,Yan Zhao,Dantong Zhu,Fanxu Bu
The Zn 2+ level in gastric juice serves as a powerful reference for the distinction of benign/malignant lesions. However, its accurate detection remains challenging due to the complex and highly acidic samples. Herein, a ratiometric fluorescence probe was developed based on quinoline-functionalized carbonized polymer dots (CPDs) for Zn 2+ accurate detection. The probe has two emission bands at 410 nm and 490 nm. The quinoline groups on the CPDs can form coordination bonds with Zn 2+ , enabling specific recognition of zinc ions. Zn 2+ addition can lead to fluorescence quenching of quinoline component of quinoline/CPD probes in simulated gastric fluid samples, while the emission of the CPDs remains almost unchanged. This ratiometric response between emission intensity at 410 nm and 490 nm enables accurate quantitative detection of Zn 2+ . The probe exhibited a detection sensitivity of 4.56 nM for Zn 2+ and demonstrated outstanding selectivity against other metal ions, attributed to its self-calibration capability. This work offers a novel strategy for designing ion sensing platforms and holds great potential for aiding the diagnosis of gastrointestinal diseases.
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Hao Zhang,Junjie Jiang,Mengge Xing,Liangyuan Cheng,Qi Zhang,Shidong Li,Yihan Qian,Xiong Qian,Chi Sun Poon,Jiashen Meng
The widespread use of polyethylene terephthalate (PET) poses serious environmental challenges, while conventional mechanical reprocessing or pyrolysis methods remain inefficient and yield low-value products. Here we present a molten salt-mediated pyrolysis strategy for upcycling waste PET into high-performance anodes for lithium-ion battery. PET is depolymerized in a zinc-containing molten salt to form a metal-organic framework intermediate, which is then carbonized at high temperature to produce porous carbon nanosheets. The molten salt serves simultaneously as a heat-transfer medium and structural template, promoting uniform carbonization, preventing framework collapse, and enhancing graphitization. The resulting carbon as a lithium-ion battery anode exhibits a reversible capacity of 600 mAh g −1 at 0.1 A g −1 and retains 93% of its capacity after 1000 cycles at 0.5 A g −1 . The full cell incorporating LiFePO 4 cathode demonstrates stable cycling over 600 cycles with negligible capacity degradation.
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Wenjing Zhang,Yilin Ding,Xinghao Liu,Dan Ai,Yaqi Zhang,Rufan Zhang,Ruifang Guan,Zheng Xie
Prussian blue analogues have attracted significant attention as low-cost electrochromic materials with facile synthesis and stable redox behavior. However, their ion transport limitation impact practical application. To overcome the limitation, in this work a hydrothermal ion exchange strategy is proposed, in which carbon dots are employed as ion carriers. During the hydrothermal process, metal ions carried by the carbon dots in situ replace Fe ions in the Prussian blue films, leading to the formation of Prussian blue analogues films. As the hydrothermal reaction proceeds, carbon dots grow on the surface of the Prussian blue analogues films, yielding a new type of carbon dots/ Prussian blue analogues electrochromic hybrid film. This strategy significantly enhances the electrochromic performance of the film, including rapid response and long-term cycle stability. The constructed device exhibits excellent operational stability, maintaining more than 80% of the initial optical modulation amplitude after 3000 switching cycles over 80,000 s. Achieving the multiple colors (red, green, and yellow) through voltage control holds promising potential for application in the field of multi-color electrochromic displays. The hybrid film shows superior multicolor response, ion diffusion capability, and structural stability. The film opens up promising opportunities in information encryption, and advanced optoelectronic integration.
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