JOURNAL OF MATERIALS SCIENCE
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2026
·Vol. 61
·期 42
·32799-32819
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IF 4.4
Yang Lutao,Zhou Chuanchen,Zhang Fang,Yang Jie,He Lei,Zhang Jun
Given the ongoing global demand for oil, polymer–surfactant binary flooding technology plays a key role in enhancing oil recovery. However, in high-temperature, high-salinity, and high-calcium/magnesium reservoirs, traditional binary flooding systems face limitations due to thermal degradation, salt sensitivity, and formation adsorption, significantly reducing their effectiveness. In this study, a novel magnetic nanocomposite, BS@Fe 3 O 4 /MOF, was synthesized using Cu-based metal–organic framework (Cu-MOF)-doped Fe 3 O 4 magnetic nanoparticles and functionalized with dodecyldimethyl betaine (BS-12). The nanocomposite effectively removed Ca 2+ and Mg 2+ ions. Emulsification tests optimized the binary surfactant/polymer (SP) flooding system with octylphenol ethoxylate (OP-10) and xanthan gum (XG) and verified the feasibility of constructing the SP-BS@Fe 3 O 4 /MOF system. The system showed strong tolerance to high temperatures, salinity, and varied pH environments, with a substantial increase in viscosity and ultra-low interfacial tension in crude oil. Adsorption loss was 14%, with separation rates of 8.28% for the nanocomposite and 17.86% for XG. Oil recovery tests showed an 8.22% improvement, and magnetic recovery added another 3.75%. Overall, BS@Fe 3 O 4 /MOF enhances binary flooding, providing a strategic solution for field application challenges.
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IONICS
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2026
·
IF 3.4
Lin Liyang,Shi Benrun,Wang Tingbo,Wang Yan,He Yituan,Wei Zhen
Poly(ethylene oxide) (PEO)-based solid polymer electrolytes (SPEs) are highly attractive for lithium metal batteries, yet their practical viability is fundamentally plagued by sluggish Li + transport, heterogeneous Li deposition, and the severe agglomeration of nanofillers. Herein, we propose a facile “dual-filler synergistic” strategy to architect high-performance SPEs by simultaneously integrating graphene oxide (GO) nanosheets and non-ionic polyvinylpyrrolidone (PVP) into the PEO-LiTFSI matrix. The hydrophobic groups of PVP are anchored onto GO surfaces to construct a polymeric steric layer, synergistically suppressing PEO crystallinity and accelerating lithium salt dissociation. Benefiting from the dual modulation, the GO/PVP-modified PEO electrolyte (GPP SPE) exhibits an ionic conductivity of 4.1 × 10 −4 S cm −1 and a Li + transference number of 0.57 at 60 o C, coupled with a broadened electrochemical stability window of 4.75 V. Consequently, GPP SPE exhibits superior dendrite suppression, enabling symmetric Li||Li cell to cycle stably for over 1000 h at 0.1 mA cm −2 without short-circuiting. Furthermore, the assembled LiFePO 4 ||Li all-solid-state cells exhibit a high initial discharge capacity of 151.1 mAh g −1 at 0.5C and retain 80.44% capacity after 200 cycles. This study elucidates a scalable and robust paradigm for designing high-safety, high-performance solid-state electrolytes for next-generation energy storage.
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Nature Communications
·
2026
·
IF 18.1
Li Jia-Yang,Guo Ying,Wang Xin,Pang Wei Kong,Hu Hai-Yan,Zhu Yan-Fang,Chen Diancheng,Liu Xin-Yu,Gu Qin-Fen,Johannessen Bernt,Zheng Xiaobo,Sun Yang,Cheng Shaobo,Yuan Yifei,Wu Chao,Wang Jia-Zhao,Dou Shi-Xue,Xiao Yao
Layered oxide cathodes have attracted worldwide attention due to environmentally friendliness, structural diversity, and economic benefits. However, poor long-term cycling and unsatisfactory rate performance hinder the practical application. Hence, an oxide cathode with self-adaptive volume has been designed, achieving stable capacity retention of 82% after 1000 cycles at 2 C. The enhanced long-term performance is attributed to its dynamically adjustable volume reducing the acceleration of stress, enabled by a tunable interlayer distance that expands at the beginning of the charging process and then compresses at the highest voltage. Uniform electric field distribution is depicted by 4-dimensional scanning transmission electron microscopy showing even Coulombic interactions between the oxide layers leading to high mechanical integrity. Such self-adaptable behavior originates from the reduced repulsive force between interlayered oxygen due to the charge reconfiguration of intralayer oxygen and transition metal ions. Additionally, the charge compensation behavior is detected by in situ X-ray absorption spectra, which would be beneficial to high-rate performance. The self-adaptive volume change driven by charge reconfiguration provides a pathway toward durable materials for sustainable sodium-ion energy storage.
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Nature Protocols
·
2026
·
IF 18.4
Zhai Wei,Shi Zhenyu,Tao Rui,Li Zijian,Dong Dan,Tang Jiabei,Wang Wenbin,Wang Lixin,Yang Hua,Zhai Li,Ruan Xinyang,Wu Yuxuan,Wang Jie,Yao Yao,Zhao Chen,He Qiyuan,Lai Zhuangchai,Zhang Hua
With the increasing progress in the emerging field of phase engineering of nanomaterials, transition metal dichalcogenides (TMDs) with metastable phases have attracted extensive research interest owing to their unique physicochemical properties and promising potential for various applications. Unlike their semiconducting counterparts, metastable 1T′-phase group VIB TMDs exhibit distinctive metallic behavior, making them highly promising for clean energy electrocatalysis (for example, hydrogen evolution), high-performance electronics and superconducting devices. However, conventional synthetic strategies usually suffer from low yields, poor phase purity, small crystal size and harsh experimental conditions, hindering their fundamental research and practical applications. Here we describe a salt-assisted method for the controlled preparation of various metastable 1T′-phase group VIB TMDs with high crystalline quality and high phase purity. In this context, ‘salt-assisted’ refers to the co-annealing of commercially available 2H-phase TMDs, chalcogen powders (for example, S or Se) and alkali metal salts (for example, K 2 C 2 O 4 ·H 2 O or K 2 CO 3 ). When heated in a tube furnace under an H 2 /Ar atmosphere, these alkali metal salts trigger a phase transformation of TMDs from the thermodynamically stable 2H phase to the metastable 1T′ phase. This Protocol describes the details of experimental procedures to prepare a series of 1T′-TMDs, that is, MoS 2 , MoSe 2 , WS 2 , WSe 2 , MoS 2 x Se 2(1− x ) and WS 2 x Se 2(1− x ) . It takes ~37 h 20 min and yields robust 1T′-TMD crystals with their size of up to hundreds of micrometers at a gram scale (up to ~2 g per batch), overcoming the longstanding synthetic bottlenecks and paving the way for advanced fundamental studies and the exploration of practical applications.
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Nature Communications
·
2026
·
IF 18.1
Yang Wendong,Liu Pei,Wang Linfeng,Jiang Hua,Zhang Shuangbin,Luo Bin,Long Xue,Zeng Yilin,Cai Xuan,Zhang Yifan,Gan Zuoxuan,Ke Huaiyu,Guo Jinhua,Duan Jiangjiang
Iron-chromium redox flow batteries are promising for long-duration energy storage owing to their safety, low cost, and environmental compatibility, but are limited by sluggish chromium(II/III) kinetics and parasitic hydrogen evolution in chromium-based negolytes. Here we re-engineer iron-chromium redox chemistry through chelation-driven molecular design using the strong-field ligand 2,2-Bis(hydroxymethyl)−2,2’,2”-nitrilotriethanol. The ligand reshapes the electronic configurations of iron and chromium centres and tunes their redox potentials, enabling an alkaline iron-chromium redox flow battery with rapid kinetics and suppressed hydrogen evolution. It stabilizes an octahedral hexacoordinate chromium chelate and unlocks an unconventional chromium(III/IV) couple at +0.34 V versus the standard hydrogen electrode, circumventing the Jahn-Teller effects associated with chromium(II/III). Paired with an iron-chelate negolyte based on the same ligand, the cell operates at 1.15 V within the aqueous stability window and remains stable over 500 cycles, achieving 99.0% coulombic efficiency and 75.8% energy efficiency at 100 mA cm −2 (80% of state-of-charge). Together with a projected raw-material cost of $17.02 kWh −1 and theoretical capacity of 68.07 Ah L −1 based on posolyte volume, this work establishes a scalable, cost-effective strategy for grid-scale energy storage.
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Nature Communications
·
2026
·
IF 18.1
Zheng Changran,Ding Qihang,Xu Huimin,He Chengjie,Yang Junyu,Li Yang,Yang Zegui,Xia Bingxuan,Shi Mingming,Fan Jiajie,Yang Bobo,Zou Jun,Ai Xinping
Aqueous hybrid sodium-ion batteries hold promise as next-generation electrochemical storage due to intrinsic safety and low cost. However, they are limited by specific energy and cycle lifespans. Here, we unlock multielectron tellurium redox chemistry in the aqueous system by coupling in situ hypervalent oxidation with selenium solid-solution modulation. In a sodium acetate electrolyte, the Te 4 O 9 2– ↔ Te ↔ Te 2– sequence enables a highly reversible six-electron reaction distinct from conventional tellurium chemistry. Selenium withdraws electron density from neighbouring tellurium, promotes oxidation, stabilizes high-valence intermediates and accelerates Na⁺ diffusion. As a result, Te 0.85 Se 0.15 delivers 95.8% utilization of the theoretical six-electron capacity (~1217 mAh g –1 at 0.1 A g –1 ) and operates for 2000 cycles at 10 A g –1 . Furthermore, a pouch cell achieves an active-material-level specific energy of approximately 114.3 Wh kg –1 at 0.33 A g –1 . These findings outline a practical route to high-energy, high-power, and intrinsically safe aqueous sodium/zinc hybrid batteries for grid-scale deployment.
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ANALYTICAL AND BIOANALYTICAL CHEMISTRY
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2026
·
IF 4.1
Li Peng,Yu Hongkun,Lin Kunde
Accurate quantification of sulfide in water depends critically on reliable calibration materials. However, existing calibration materials pose significant challenges for routine sulfide analysis, whether they are in the form of Na 2 S solutions susceptible to atmospheric oxidation or ZnS suspensions lacking physical homogeneity. To address these deficiencies, we developed a series of highly stable ZnS colloids by using zinc acetate, sodium sulfide, and a polymeric stabilizer. Four polymers were demonstrated to be effective, namely, chitosan, hydroxyethyl starch, hydroxyethyl cellulose, and hydroxypropylmethyl cellulose. Under optimized experimental conditions, each ZnS colloid formulation maintained satisfactory homogeneity and stability for over 6 months. Moreover, the colloids exhibit no spectral interference with the widely adopted methylene blue spectrophotometry at around 660 nm and do not cause clogging of online analyzer tubing, suggesting their suitability for instrument self-calibration. Particle size and zeta potential analyses revealed that adding a stabilizer effectively prevented particle aggregation, consistent with predominantly steric hindrance imparted by the adsorbed polymer layers. Collectively, the proposed ZnS colloids represent a promising alternative to conventional sulfide calibration materials for method development, instrument calibration, and data quality control. Graphical abstract
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Nature Communications
·
2026
·
IF 18.1
Guo Likun,Feng Xinjun,Zhang Xingyu,Xu Chao,Liu Wei,Bi Yujia,Qi Qingsheng,Xian Mo,Zhao Guang
Diverse chemicals biosynthesis demand distinct precursor acetyl-CoA and energy inputs, yet strategies balancing carbon atom economy and energy generation for varied products remain scarce. Here, we design an a u t onomous h ybrid en ergy-carbon b a lancing apparatus (ATHENA) to establish a paradigm for redox-driven, dynamically adaptive regulation of carbon conservation and energy synthesis in Escherichia coli . ATHENA features modularization of acetyl-CoA and NADH synthesis pathways for carbon conservation and energy generation, paired with NADH-responsive positive and negative genetic circuits constructed using the BsRex sensor and antisense RNA. This system enables intracellular redox state-dependent rational metabolic flux allocation to balance carbon atom economy and energy generation. Ultimately, ATHENA significantly improves yields and titers of five products with differential acetyl-CoA and energy demands. In the 5-L bioreactor, acetate yield markedly exceeds its native theoretical yield, while that of mevalonate nearly approaches this theoretical upper limit. This work provides a universal strategy for constructing high carbon-yield microbial chassis cells.
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Science China-Materials
·
2026
·
IF 7.7
Cao Mingjie,Yu Sihui,Yuan Shaokai,Yang Yiqing,Zhang Haoyu,Song Jiatian,Yan Xinheng,Liu Jiuzhou,Wang Yimeng,Li Wenjun,Guo Hao,Dong Chunlei,Yong Li,Zhang Zhuohao,Yu Siyuan,Qin Yajie,Zhang Songlin,Peng Huisheng,Sun Xuemei
The transition toward continuous, personalized health management necessitates wearable platforms capable of high-fidelity biochemical monitoring. Although textile-based sensors provide ideal mechanical compliance and breathability, their analytical performance is fundamentally limited by sample stagnation and evaporative concentration drift, which cause temporal mixing and significant signal inaccuracy. Here, we report a self-renewing textile fluidic rectifier with directional sweat transport (DST) designed to achieve autonomous fluidic management and high-fidelity sensing. By engineering functionally decoupled zones including collection, transport, and evaporation zones within a hierarchical hydrophilic/hydrophobic fiber matrix, we establish an evaporation-induced water potential gradient that functions as an autonomous microfluidic pump. This architecture effectively rectifies the fluidic flux, ensuring unidirectional flow that continuously avoids sample mixing and clears the sensing interface. Consequently, compared with conventional textiles, the system dramatically improves the sensing accuracy from 39% to 96% and maintains stable electrochemical operation. We further integrated fiber-based electrochemical sensors into a monolithic, knitted wristband for real-time, wireless monitoring of Na + , K + , and glucose during exercise, which demonstrated high physiological correlation and mechanical robustness through 5000 bending cycles. Combining industrial scalability with sophisticated microfluidics, this self-renewing rectifier offers a robust hardware foundation for the next generation of digital health and personalized diagnostic platforms.
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MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 10
·684
·
IF 5.4
Min Congyu,Sun Haifeng,Zhang Haixia,Zhang Jinzhu,Ding Min,Zhang Xiaoqing
An electrochemical aptamer-based (E-AB) sensor for myeloperoxidase (MPO) was developed that combined a gold nanoparticle /MXene scaffold with freeze-thaw-directed aptamer immobilization and probe-density optimization. Unlike using nanocomposite amplification alone, this strategy regulates probe density and accessibility at the bioreceptor layer to improve target-coupled signal transduction. Using the same aptamer solution, the freeze-thaw method yielded 60.77% greater MPO-induced signal suppression and a 2.4-fold lower regression-derived limit of detection (LOD) than conventional incubation. After target incubation for 50 min at 4 °C, the sensor showed a linear response from 5.00 to 250.0 ng/mL in 1% plasma matrix (equivalent to 500 ~ 25,000 ng/mL in undiluted plasma), with an LOD of 4.15 ng/mL (equivalent to 415 ng/mL in undiluted plasma). These results illustrated that coupling conductive nanointerface design with aptamer-layer organization might provide a practical route for antibody-free and H 2 O 2 -independent MPO determination. Graphical abstract
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Food Biophysics
·
2026
·Vol. 21
·期 4
·135
·
IF 3.9
Zhang Yuxin,Zhu Shuo,Fu Hao,Jin Jiande,Lin Xianchang,Yu Zifeng,Ye Zunyi,He Xueming,Shen Fei
This study explores the synergistic modification effects and underlying mechanisms of sodium bicarbonate (SB)-assisted cold plasma (CP) treatment on wheat gluten (WG). Compared with individual treatments, the combined treatment markedly improves the solubility, emulsifying properties, and foaming capacity of wheat gluten. Physicochemical and structural analyses show that CP treatment induces partial denaturation and surface etching of wheat gluten, while the introduction of SB mitigates excessive oxidation damage. It increases the accessibility of hydrophobic and sulfhydryl groups and facilitates the development of a more thermodynamically stable protein structure. Molecular dynamics simulations further reveal that under weak alkaline conditions, SB stabilizes local hydrophobic domains, reduces hydroxyl radical (·OH)-induced disordered unfolding, and maintains the protein in an extended, ordered state with high solvent accessibility. These findings provide a theoretical basis for developing efficient, green protein modification strategies in the food industry.
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Advanced Composites and Hybrid Materials
·
2026
·
IF 15.5
Dai Xiaofeng,Yang Yixuan,Xue Xibo,Lv Yi
Cold atmospheric plasma (CAP) has demonstrated unique therapeutic benefits by selectively targeting a broad spectrum of cancer cells while sparing their non-malignant counterparts. Yet, current clinical applications of CAP remain largely restricted to adjuvant use during surgery, while alternative forms such as plasma-activated medium (PAM) are limited by the predominance of longer-lived species, lacking the short-lived radicals central to CAP’s potent anticancer effects. To overcome this limitation, we developed FAE@CHG, a stable functional hydrogel capable of preserving reactive oxygen and nitrogen species for long-term. The system integrates CAP pre-treated functional nanoparticles (Fe 3 O 4 @Au@EN2, FAE) with a tyramine-conjugated hyaluronic acid hydrogel (HAT). While FAE captures short-lived radicals, HAT enables sustained release and prolongs stability. FAE@CHG preserved these highly reactive species for up to three weeks, far exceeding their natural microsecond-scale lifetimes. Using cutaneous squamous cell carcinoma as the tumor model, FAE@CHG demonstrated potent and selective anticancer response through concurrent activation of multiple regulated cell death pathways that was primarily orchestrated by disulfidptosis. Animal models confirmed FAE@CHG’s enhanced efficacy over controls, with no apparent systemic toxicity via both topical use and integrated regimen. This work presents the first successful integration of CAP-derived short-lived reactive species into a gel-based platform, offering a versatile and effective strategy to improve CAP’s anti-cancer efficacy and expand its administration routes beyond current constraints.
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