Journal of Colloid and Interface Science最新文献_第2页

Structure–property relationships in saccharide-derived carbon dots: Tuning oxygen functionalities and sp2 domains for antioxidant performance 糖源碳点的结构-性质关系：调节氧官能团和sp2结构域的抗氧化性能。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-15 Epub Date: 2026-01-25 DOI: 10.1016/j.jcis.2026.139939

Agung Wibowo , Mohd Jahir Khan , Sopanat Sawatdee , Warangkana Pornputthapitak , Soontorn Tuntithavornwat , Atthapon Srifa , Pattaraporn Posoknistakul , Soraya Pornsuwan , Navadol Laosiripojana , Yijiao Jiang , Kanokwan Sansanaphongpricha , Chularat Sakdaronnarong

Excessive reactive oxygen species (ROS) drive oxidative stress and disease progression, yet the structural determinants of antioxidant activity in carbon dots (CDs) remain unclear. In this study, the influence of oxygenated surface functional groups and carbon hybridization states on the performance of saccharide-derived CDs was elucidated. CDs were synthesized from five saccharide precursors via hydrothermal carbonization, and synthesis parameters were systematically optimized using response surface methodology combined with central composite design (200–240 °C, 6–12 h). Among the tested precursors, xylose yielded CDs (X-CDs) with the smallest size (2.17–4.38 nm), the strongest blue emission (427–450 nm), the highest negative surface charge (−38.5 to −84.6 mV), and the highest quantum yield (0.80–2.81%). Spectroscopic analyses revealed enriched oxygen functionalities (O/C ratio up to 0.32) and graphitic sp² domains with reduced sp³ content, correlating with enhanced electronic delocalization. Optimized X-CDs exhibited potent radical scavenging activity (EC₅₀ = 0.047 mg/mL for DPPH; 0.008 mg/mL for ABTS) while showing low cytotoxicity toward normal and cancer cells. These findings establish a mechanistic framework linking oxygenated groups and sp² hybridization to enhanced antioxidant properties and provide a green, tunable strategy for designing high-performance CDs from renewable precursors for biomedical, nutraceutical, and environmental applications.

过多的活性氧（ROS）驱动氧化应激和疾病进展，但碳点（CDs）抗氧化活性的结构决定因素尚不清楚。本研究阐明了含氧表面官能团和碳杂化态对糖源CDs性能的影响。以5种糖类前驱体为原料，采用水热炭化法制备了CDs，并采用响应面法结合中心复合设计对合成参数进行了系统优化（温度200 ~ 240℃，时间6 ~ 12 h）。其中，木糖制备的CDs （X-CDs）尺寸最小（2.17 ~ 4.38 nm），蓝光发射最强（427 ~ 450 nm），表面负电荷最高（-38.5 ~ -84.6 mV），量子产率最高（0.80 ~ 2.81%）。光谱分析显示，氧官能团丰富（O/C比高达0.32），sp3含量降低的石墨sp2结构域与增强的电子离域有关。优化后的X-CDs具有强大的自由基清除活性（EC₅₀= 0.047 mg/mL， DPPH; 0.008 mg/mL， ABTS），同时对正常细胞和癌细胞表现出较低的细胞毒性。这些发现建立了一个机制框架，将含氧基团和sp2杂化与增强抗氧化性能联系起来，并为从生物医学、营养保健和环境应用的可再生前体设计高性能cd提供了绿色、可调的策略。

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引用次数: 0

Biomimetic spatially graded electrolytes: facilitating rapid ion conduction and dendrite-mitigated operation in solid-state lithium batteries 仿生空间梯度电解质：在固态锂电池中促进快速离子传导和减少枝晶的操作。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-15 Epub Date: 2026-02-04 DOI: 10.1016/j.jcis.2026.139989

Yupeng Wang, Hongying Hou, Tingting Yan, Yongsheng Yan, Xiaohua Yu

Electrode-electrolyte interfaces are of paramount significance in solid-state batteries. However, the enhancement of lithium (Li) conduction and the mitigation of Li dendrite formation constitute a dual challenge to interfacial structural design, as conventional rigid interfaces fail to balance ionic mobility and mechanical blocking. Herein, we report a biomimetic soft-hard-soft hierarchical architecture as an interfacial transition layer between the anode and solid electrolyte. Breaking from conventional rigid designs, this architecture leverages synergistic layer interactions to redistribute interfacial stress: the soft layer's electrospun network establishes 3D ion-transport pathways that accelerate Li⁺ conduction, while the poly(vinylidene fluoride) (PVDF) hard layer—mechanically reinforced by the underlying soft substrate—simultaneously suppresses dendrite penetration and enhances structural integrity. Consequently, the hierarchical structure achieves a tensile strength of 49.2 ± 2.1 MPa (n = 3) MPa, an electrochemical window of 5.20 ± 0.08 V (n = 3), and an ionic conductivity of (2.82 ± 0.09) × 10⁻⁴ S cm⁻¹ (n = 3) cm⁻¹ at 25 °C. This performance directly enables high-performance cycling in LiFePO₄ || Li cells 136.3 ± 2.8 mAh g⁻¹ (n = 3) at 1.0C, 93.8 ± 0.8% (n = 3) capacity retention after 200 cycles, 99.5 ± 0.3% (n = 3) coulombic efficiency). The ionic conductivity and interfacial stability of the novel interface are significantly superior to those of commercial solid-state electrolyte films. This study highlights the potential of the bio-inspired spatial gradient electrolyte to simultaneously enhance Li⁺ conductivity and mitigate dendrite formation.

电极-电解质界面在固态电池中具有至关重要的意义。然而，锂离子传导的增强和锂枝晶形成的减缓对界面结构设计构成了双重挑战，因为传统的刚性界面无法平衡离子迁移和机械阻塞。在此，我们报告了一种仿生软-硬-软分层结构作为阳极和固体电解质之间的界面过渡层。打破传统的刚性设计，这种结构利用协同层相互作用来重新分配界面应力：软层的静电纺丝网络建立了3D离子传输途径，加速了Li+的传导，而聚偏氟乙烯（PVDF）硬层（由底层软基片机械增强）同时抑制了枝晶的渗透并增强了结构的完整性。结果表明，在25℃下，该结构的抗拉强度为49.2±2.1 MPa (n = 3) MPa，电化学窗口为5.20±0.08 V (n = 3)，离子电导率为（2.82±0.09）× 10-4 S cm-1 (n = 3) cm-1。该性能直接实现了LiFePO₄||锂电池在1.0℃下136.3±2.8 mAh g-1 （n = 3）的高性能循环，200次循环后容量保持率为93.8±0.8% (n = 3)，库仑效率为99.5±0.3% （n = 3）。新型界面的离子电导率和界面稳定性明显优于商用固态电解质膜。这项研究强调了仿生空间梯度电解质在提高Li+电导率和减轻枝晶形成方面的潜力。

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引用次数: 0

Regulating hydrogen-bond network via a low-viscosity electrolyte for hydrogen evolution reaction-free aqueous sodium-ion batteries 无析氢反应水溶液钠离子电池用低粘度电解质调节氢键网络。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-15 Epub Date: 2026-02-02 DOI: 10.1016/j.jcis.2026.140038

Qianlong Zhang , Min Wang , Yutao Shi , Wei Zhang , Yilun Hong , Danni Zhu , Yixuan Liang , Yuyang Wu , Xiaohui Chen , Zhidong Chen , Hailin Shen , Zhenghui Pan

Aqueous sodium-ion batteries (ASIBs) have emerged as one of the most promising candidates for large-scale energy storage devices, owing to their inherent non-flammability, abundant resources and low cost. However, the water-induced hydrogen evolution reaction (HER) on the anode surface usually leads to low Coulombic efficiency (CE) and limited cycling stability. In this study, we propose a novel aqueous electrolyte recipe composed of H₂O/DMF/TTE-NaTFSI to mitigate the issue of HER. On the one hand, the 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether (TTE), acting as a diluent, is highly hydrophobic. It disrupts the hydrogen-bonding network of H₂O, thereby enhancing solvation kinetics. Furthermore, the fluorinated moieties of TTE interact with H₂O molecules via strong dipole interactions, reducing solvent mobility and optimizing the Na⁺ solvation sheath. On the other hand, the N, N-dimethylformamide (DMF) serves as a co-solvent that promotes miscibility between aqueous phase and TTE while restructuring the hydrogen-bonding network within the solvation shell. DMF and TTE regulate synergistically the primary solvation structure, stabilizing Na⁺ ions via strengthened anion coordination and effectively suppressing HER. Consequently, the ASIB demonstrates exceptional cyclic stability, retaining 99.2% of its capacity after 1000 cycles at 1C and 96.3% after 100 cycles at 2C in Na₃V₂(PO₄)₃/C full cells. This work presents a promising strategy to suppress HER through the synergistic interaction between DMF and TTE, enhancing electrochemical performance.

水钠离子电池（asib）由于其固有的不可燃性、丰富的资源和低廉的成本，已成为大规模储能装置最有前途的候选者之一。然而，阳极表面的水致析氢反应（HER）往往导致库仑效率（CE）低和循环稳定性有限。在这项研究中，我们提出了一种由h2o /DMF/TTE-NaTFSI组成的新型水电解质配方来缓解HER问题。一方面，作为稀释剂的1,1,2,2-四氟乙基-2,2,2-三氟乙醚（TTE）具有高度疏水性。它破坏h2o的氢键网络，从而增强溶剂化动力学。此外，TTE的氟化部分通过强偶极相互作用与H₂O分子相互作用，降低了溶剂迁移率，优化了Na+溶剂化鞘。另一方面，N， N-二甲基甲酰胺（DMF）作为助溶剂，促进水相和TTE之间的混溶，同时重组溶剂化壳内的氢键网络。DMF和TTE协同调节初级溶剂化结构，通过加强阴离子配位稳定Na+离子，有效抑制HER。因此，ASIB表现出优异的循环稳定性，在1C下1000次循环后保持99.2%的容量，在Na₃V₂（PO₄）₃/C全电池中在2C下100次循环后保持96.3%的容量。这项工作提出了一种有希望的策略，通过DMF和TTE之间的协同作用来抑制HER，提高电化学性能。

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引用次数: 0

Dual-redox cycling driven charge transfer in CuxO/CeO2 heterojunction for photocatalytic activation of peroxymonosulfate toward tetracycline degradation CuxO/CeO2异质结双氧化还原循环驱动电荷转移光催化活化过氧单硫酸盐降解四环素

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-15 Epub Date: 2026-01-27 DOI: 10.1016/j.jcis.2026.139996

Huijie Wang , Jiaxin Li , Zixiang Jiao , Xiaodan Zheng , Wei Ma , Kesheng Cao , Lingwei Xue , Fu Xu , Yang Wan , Yangyang Yang , Binrong Li , Pengwei Huo

The efficient removal of antibiotic residues such as tetracycline (TC) from water remains challenging. Research has demonstrated that heterogeneous systems utilizing photocatalysis to activate peroxymonosulfate (PMS) exhibit exceptional performance. However, preparing materials with strong charge transfer capabilities and stability still poses certain challenges. This study developed a Cu_xO/CeO₂ heterojunction composite with abundant oxygen vacancies (O_V) for visible-light-driven activation of peroxymonosulfate (PMS). The hierarchical flower-sphere structure of CeO₂ provides ample adsorption sites and mass transfer channels, while the synergy between the heterojunction interface and the dual redox cycles of Cu⁺/Cu²⁺ and Ce³⁺/Ce⁴⁺ significantly enhances visible-light absorption and accelerates the separation and transfer of photogenerated carriers. Femtosecond transient absorption (fs-TA) spectroscopy further confirms that the formation of the heterojunction effectively regulates the direction of carrier transfer and prolongs the charge lifetime. Density functional theory (DFT) calculations reveal that O_V markedly promote the adsorption and activation of PMS. Under visible light irradiation, the system achieves a TC degradation efficiency of 99.2% within 60 min, primarily driven by sulfate radicals (SO₄^•−) and hydroxyl radicals (•OH), with the intermediates exhibiting generally low toxicity. In addition, in-situ infrared spectroscopy (in-situ FT-IR) further confirmed the outstanding TC adsorption capacity and degradation activity of the Cu_xO/CeO₂ heterojunction composite. This work provides insightful perspectives for designing efficient and stable heterojunction catalysts through defect and interface engineering for water purification.

从水中有效去除四环素等抗生素残留物仍然具有挑战性。研究表明，利用光催化激活过氧单硫酸盐（PMS）的多相系统表现出优异的性能。然而，制备具有强电荷转移能力和稳定性的材料仍然存在一定的挑战。本研究开发了一种具有丰富氧空位（OV）的CuxO/CeO2异质结复合材料，用于过氧单硫酸盐（PMS）的可见光活化。CeO2的分层花球结构提供了充足的吸附位点和传质通道，而异质结界面与Cu+/Cu2+和Ce3+/Ce4+的双氧化还原循环之间的协同作用显著增强了可见光吸收，加速了光生载体的分离和转移。飞秒瞬态吸收（fs-TA）光谱进一步证实了异质结的形成有效地调节了载流子转移的方向，延长了电荷寿命。密度泛函理论（DFT）计算表明，OV能显著促进PMS的吸附和活化。在可见光照射下，该体系在60 min内降解TC的效率为99.2%，主要由硫酸盐自由基（SO4•−）和羟基自由基（•OH）驱动，中间体毒性一般较低。此外，原位红外光谱（原位FT-IR）进一步证实了CuxO/CeO2异质结复合材料出色的TC吸附能力和降解活性。本研究为通过缺陷和界面工程设计高效稳定的异质结水净化催化剂提供了新的思路。

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引用次数: 0

Macropore engineering of MOF-derived carbon for superior microwave absorption mof衍生碳的大孔工程，具有优异的微波吸收性能

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-15 Epub Date: 2026-01-27 DOI: 10.1016/j.jcis.2026.139993

Zi Wang , Junru Yao , Jinlong Lv , Yang Cao , Biao Lv , MinJie Liang , Honghong Zhao , Youyi Sun

Regulating electromagnetic pollution has become significance as 5G communication and radar technologies rapidly progress. This study proposes a macroporous engineering method utilizing polystyrene microsphere templates to address the limitations of single pore size structure and the difficulties in achieving impedance matching and loss capability in traditional carbon materials derived from metal-organic frameworks (MOFs). Co-Zn-C/C composite materials with a multi-level pore structure have been successfully synthesized. Through meticulous regulation of the PS template's dimensions via PVP dosage modifications, Metal-organic framework-on-Metal-organic framework (MOF-on-MOF) epitaxial growth, and a high-temperature carbonization of ZIF-8/ZIF-67, a composite material featuring a multi-level pore architecture (macropore mesoporous carbon nanotube network) and tunable pore size was synthesized. The results indicate that the material contains uniformly dispersed Co nanoparticles, a substantial specific surface area, and many nitrogen-doped defects. The optimized CZCC-2 sample demonstrates superior impedance matching and multi-mechanism synergistic attenuation, achieving an effective absorption bandwidth of 6.59 GHz at a thickness of 2.1 mm and a minimum reflection loss of −59.48 dB at 9 GHz at 3.0 mm, as per electromagnetic performance testing. The exceptional capability for suppressing electromagnetic wave scattering in practical applications is further validated by finite element modeling and radar cross-section (RCS) analysis. This paper presents innovative methods for developing absorbent materials that are thin, lightweight, broadband, high-intensity.

随着5G通信和雷达技术的快速发展，治理电磁污染具有重要意义。本研究提出了一种利用聚苯乙烯微球模板的大孔工程方法，以解决传统金属-有机框架（MOFs）衍生的碳材料的单孔尺寸结构的局限性以及实现阻抗匹配和损耗能力的困难。成功合成了具有多级孔结构的Co-Zn-C/C复合材料。通过PVP投加量对PS模板的尺寸进行精细调节，金属-有机骨架-金属-有机骨架（MOF-on-MOF）外延生长，并对ZIF-8/ZIF-67进行高温碳化，合成了具有多级孔结构（大孔介孔碳纳米管网络）和孔径可调的复合材料。结果表明，该材料含有均匀分散的Co纳米颗粒，具有较大的比表面积和大量的氮掺杂缺陷。电磁性能测试表明，优化后的CZCC-2样品具有良好的阻抗匹配和多机制协同衰减性能，在2.1 mm厚度下有效吸收带宽为6.59 GHz，在3.0 mm厚度下9 GHz时反射损耗最小为- 59.48 dB。通过有限元建模和雷达截面（RCS）分析，进一步验证了其在实际应用中抑制电磁波散射的卓越能力。本文介绍了开发薄、轻、宽、高强度吸收材料的创新方法。

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引用次数: 0

Halloysite nanotubes interacting with lipid vesicle membranes 高岭土纳米管与脂质囊泡膜的相互作用。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-15 Epub Date: 2026-01-29 DOI: 10.1016/j.jcis.2026.140013

Chiara Ferlito , Lorenzo Lisuzzo , Giuseppe Lazzara , Marc Schmutz , Antonio Stocco

Halloysite nanotubes (HNTs), naturally occurring aluminosilicates with a tubular structure, are promising nanocarriers for drug delivery due to their biocompatibility and unique morphology. However, their interaction with lipid membranes remains not fully explored. In this work, we aim at elucidating on the adhesion of HNTs on unilamellar vesicles made of phospholipids used as model of biological membranes. The adhesion was modulated by varying the lipid composition, ionic strength, and the size ratio between HNTs and vesicles. The adhesion mechanism was also studied by trapping a single HNT with optical tweezers and let it interact with a single vesicle. These findings show a preferential adhesion of the HNT tip on the lipid bilayer, which represents an important step toward directional membrane targeting in biomedical applications.

高岭土纳米管（HNTs）是一种具有管状结构的天然硅铝酸盐，由于其生物相容性和独特的形态，是很有希望用于药物递送的纳米载体。然而，它们与脂质膜的相互作用尚未得到充分探讨。在这项工作中，我们的目的是阐明HNTs粘附在单层小泡上的磷脂制成的生物膜模型。通过改变脂质组成、离子强度和hnt与囊泡之间的大小比来调节粘附。通过光学镊子捕获单个HNT并使其与单个囊泡相互作用，研究了粘附机制。这些发现表明，HNT尖端在脂质双分子层上具有优先粘附性，这是生物医学应用中定向膜靶向的重要一步。

引用次数: 0

Guided electron flow in anthraquinone-methoxy donor-acceptor1-acceptor2 covalent triazine frameworks enabling superior selective uranium capture 引导电子流在蒽醌-甲氧基供体-受体-受体- 2共价三嗪框架中实现优越的选择性铀捕获。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-15 Epub Date: 2026-01-29 DOI: 10.1016/j.jcis.2026.140012

Ruoxuan Guo, Liping Song, Wencheng Yao, Yingzhong Huo, Lu Wang, Yang Liu, Yuejie Ai, Xiangke Wang

Rational design and synthesis of stable and efficient photocatalysts for selective U(VI) capture in water remains a great challenge due to the complicated water environment. Herein, considering the synergistic interaction between anthraquinone (−AQ, electron acceptor) and methoxy (–OCH₃, electron donor), a series of ternary donor-acceptor-acceptor (D-A1-A2) covalent triazine frameworks named as OCH₃(x)-AQ(y) (x and y represent different content ratios) were rationally designed and synthesized via molecular regulation. This work not only constructed a directional charge-transfer pathway, but also greatly improved the utilization efficiency of photogenerated electrons in OCH₃(x)-AQ(y) framework, which was also further verified by density functional theory (DFT) calculations. Finally, OCH₃(2)-AQ(3) could reach nearly 100% removal efficiency of U(VI) within 240 min under visible light irradiation in air. Meanwhile, OCH₃(2)-AQ(3) showed an extremely high distribution coefficient (K_d, 1.07 × 10⁶ mL·g⁻¹) for U(VI) under multicomponent ion competition and further performed high removal efficiencies (>98%) in real water environments, such as seawater and groundwater. Importantly, the machine learning results also demonstrated that the structural characteristics would greatly influence the catalytic performance of CTF catalysts. The component tuning of donor-acceptor groups achieved synergistic effects in stepwise charge transport and target-selective site accessibility, which offered an effective photocatalytic strategy for U(VI) extraction in complex water environment.

由于复杂的水环境，合理设计和合成稳定高效的光催化剂对水中U（VI）的选择性捕获仍然是一个巨大的挑战。本文考虑到蒽醌（-AQ，电子受体）与甲氧基（-OCH3，电子给体）之间的协同作用，通过分子调控，合理设计合成了一系列三元给体-受体-受体（D-A1-A2）共价三嗪框架，命名为OCH3(x)-AQ(y) （x和y代表不同的含量比）。本工作不仅构建了定向电荷转移途径，而且大大提高了OCH3(x)-AQ(y)骨架中光生电子的利用效率，这也得到了密度泛函理论（DFT）计算的进一步验证。最后，在空气可见光照射下，OCH3(2)-AQ(3)在240 min内对U（VI）的去除率接近100%。同时，在多组分离子竞争条件下，OCH3(2)-AQ(3)对U（VI）具有极高的分布系数（Kd, 1.07 × 106 mL·g-1），在海水和地下水等实际水环境中具有较高的去除率（>98%）。重要的是，机器学习结果还表明，结构特征将极大地影响CTF催化剂的催化性能。供体-受体基团的组分调整在电荷逐步传递和靶向选择性位点可达性方面实现了协同效应，为复杂水环境下U（VI）的光催化提取提供了一种有效的策略。

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引用次数: 0

Engineered hollow cubic structures CoS/NiS heterojunctions enable high-performance magnesium-ion batteries 设计的空心立方结构CoS/NiS异质结使高性能镁离子电池成为可能。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-15 Epub Date: 2026-01-27 DOI: 10.1016/j.jcis.2026.139992

Runjing Xu , Han Xiao , Yuan Fang , Ya Chen , Pengfei Zhang , Kailin Li , Yuxuan Li , Huinan Yu , Jiayun Zhang , Chaoxin Wu , Xin Gao , Tao Meng , Xiaodong Chen , Lifeng Cui

Rechargeable magnesium-ion batteries (RMBs) demonstrate notable benefits, including higher theoretical energy density, cost-effectiveness, and improved safety characteristics, positioning them as a viable substitute for conventional energy storage solutions. Nevertheless, the ongoing development of high-performance RMBs continues to face inevitable challenges, such as unsatisfactory practical capacity, inadequate cycle durability, swift energy degradation, and a comparatively limited-service life. Herein, CoS/NiS nanomaterials with cubic-shaped morphology were prepared by a two-step metal sulfide template-free solvothermal synthesis method. The material with internal cavity structure effectively mitigates the large expansion of magnesium-ion battery cathode material due to Mg²⁺ embedding during the charging and discharging process, and provides a robustness electrode-electrolyte interface, thus greatly improving the cycle life. Besides, the introduction of Ni elements into CoS materials may form heterojunctions thereby lowering the potential barrier of the conversion reaction and improving the reaction kinetics and redox reversibility. In addition, the abundance of highly electronegative SS bonds in the CoS/NiS material, which also provides many electrochemically active sites and smooth transport paths for the embedding of Mg²⁺, leads to the reduction of its polarization and the improvement of its reaction kinetics, which makes the CoS/NiS as a RMBs cathode material with a high specific capacity and a long cycling life. Thus, this research presents a feasible and effective strategy for enhancing the Mg²⁺ storage capability of engineered CoS nanomaterials, with potential applicability and adaptability to other electrode materials.

可充电镁离子电池（RMBs）具有显著的优势，包括更高的理论能量密度、成本效益和改进的安全特性，使其成为传统储能解决方案的可行替代品。然而，高性能人民币的发展仍然面临着不可避免的挑战，如实际容量不理想，循环耐久性不足，能量退化迅速，使用寿命相对有限。本文采用无金属硫化物模板的两步溶剂热合成方法制备了立方形状的CoS/NiS纳米材料。具有内腔结构的材料有效缓解了镁离子电池正极材料在充放电过程中因Mg2+嵌入而产生的较大膨胀，提供了坚固的电极-电解质界面，从而大大提高了循环寿命。此外，在CoS材料中引入Ni元素可以形成异质结，从而降低转化反应的势垒，提高反应动力学和氧化还原可逆性。此外，CoS/NiS材料中丰富的高电负性SS键，也为Mg2+的嵌入提供了许多电化学活性位点和光滑的传输路径，从而降低了其极化程度，改善了其反应动力学，使CoS/NiS成为具有高比容量和长循环寿命的RMBs正极材料。因此，本研究为提高工程CoS纳米材料的Mg2+存储能力提供了一种可行有效的策略，并具有对其他电极材料的潜在适用性和适应性。

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引用次数: 0

Light-driven host-guest supramolecular transport engineering an antibacterial trap switch 光驱动主客体超分子运输工程抗菌陷阱开关。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-15 Epub Date: 2026-01-31 DOI: 10.1016/j.jcis.2026.139982

Xuejiao Wang , Zhi Su , Lan Zheng , Kaifa Zhao , Qiyang Cai , Xiangyu Wei , Yaqing Zhao , Yan Ke , Yuelu Fan , Hu Zhu

Inspired by nature's sophisticated use of light energy, we report a bioinspired antibacterial trap switch operating without exogenous competitors. This work engineers a light-gated supramolecular system where host-guest conformational reorganization between cucurbit[8]uril (CB[8]) and dicationic symmetric azobenzene derivative (Azo-E) enables precise control over antimicrobial agent release. Upon ultraviolet (UV) irradiation triggers E-Z isomerization, enhancing its binding affinity to CB[8] and resulting in steric displacement of the encapsulated antibacterial agent through conformational reorganization. This system achieves >99.9% bacterial eradication, supports reversible switching across four conventional antibacterial agents, and reduces mammalian cell cytotoxicity. Spray-coatable on different biomaterial surfaces, it demonstrates spatial precision for localized disinfection. This molecular engineering establishes a general platform for spatiotemporally precise regulation of bioactive cargoes, enabling adaptive supramolecular systems with infection control.

受大自然对光能的复杂利用的启发，我们报道了一种生物启发的抗菌陷阱开关，它在没有外源竞争对手的情况下工作。这项工作设计了一个光门控的超分子系统，其中葫芦b[8] （CB[8]）和指示对称偶氮苯衍生物（Azo-E）之间的主客体构象重组能够精确控制抗菌剂的释放。在紫外线照射下引发E-Z异构化，增强其与CB[8]的结合亲和力，并通过构象重组导致被封装抗菌剂的空间位移。该系统可达到99.9%的细菌根除率，支持四种常规抗菌剂的可逆切换，并降低哺乳动物细胞毒性。可喷涂于不同的生物材料表面，具有局部消毒的空间精度。这种分子工程为生物活性物质的时空精确调控建立了一个通用平台，使具有感染控制的自适应超分子系统成为可能。

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引用次数: 0

Engineered PtAgCu/MoS2 and hexagonal star-like nitrogen-doped carbon enabling highly efficient sandwich-type electrochemical immunosensing via multiple signal enhancement 设计了PtAgCu/MoS2和六方星形氮掺杂碳，通过多重信号增强实现了高效的三明治型电化学免疫传感

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-15 Epub Date: 2026-01-27 DOI: 10.1016/j.jcis.2026.139984

Xiaofei Sun , Ning Chen , Shujun Wang , Yushu Lin , Jie Zhang , Shuo Xing , Qing Liu , Yueyun Li , Daopeng Zhang , Kai Feng , Jongnam Park , Feng Tang

Cardiac troponin I (cTnI), recognized as the gold-standard biomarker for acute myocardial infarction (AMI), plays a crucial role in the early diagnosis and clinical management. Herein, we present a rationally designed multiple signal enhancement strategy for an ultrasensitive electrochemical immunoassay of cTnI. This work integrates the superior catalytic activity of a wrinkled MoS₂-supported PtAgCu ternary alloy (PtAgCu/MoS₂) with the excellent conductivity of hexagonal star-like nitrogen-doped carbon (HS-NC) modified by gold nanoparticles (Au@HS-NC). The PtAgCu alloy, featuring maximized atomic utilization and optimized d-orbital coupling, exhibits outstanding hydrogen peroxide (H₂O₂) electroreduction activity and a large electrochemically active surface area, thereby effectively amplifying the sensing signal. Meanwhile, the precisely designed MoS₂ carrier not only offers abundant anchoring sites and facilitates charge transfer but also enriches H₂O₂ reactant, thereby promoting the catalytic performance of the PtAgCu alloy. Furthermore, as an ideal substrate, the morphologically engineered HS-NC, enriched with nitrogen functionalities, offers a highly conductive framework with ultralarge surface area (1121.80 m² g⁻¹), enabling efficient immobilization of primary antibodies (Ab₁) and stable, accelerated charge transfer, thereby synergistically amplifies the signal output. Benefiting from this multiple amplification strategy, the proposed immunosensor achieves a remarkably low limit of detection of 0.51 fg mL⁻¹, and an exceptionally broad dynamic range (from 10 fg mL⁻¹ to 100 ng mL⁻¹), while exhibits excellent selectivity in complex matrices, maintaining high reproducibility and stability. This work demonstrates a rational multi-amplification design paradigm for constructing high-performance immunosensors and highlights its promising application in AMI early diagnosis.

心肌肌钙蛋白I （Cardiac troponin I, cTnI）被认为是急性心肌梗死（AMI）的金标准生物标志物，在早期诊断和临床治疗中起着至关重要的作用。在此，我们提出了一种合理设计的多信号增强策略，用于超灵敏的cTnI电化学免疫分析。本研究将褶皱MoS2负载的PtAgCu三元合金（PtAgCu/MoS2）的优异催化活性与金纳米颗粒修饰的六角形星形氮掺杂碳（HS-NC）的优异导电性结合在一起（Au@HS-NC）。PtAgCu合金具有最大的原子利用率和优化的d轨道耦合，具有出色的过氧化氢（H2O2）电还原活性和大的电化学活性表面积，从而有效地放大了传感信号。同时，精确设计的MoS2载体不仅提供了丰富的锚定位点，便于电荷转移，还富集了H2O2反应物，从而提高了PtAgCu合金的催化性能。此外，作为一种理想的底物，经过形态学改造的HS-NC富含氮功能，提供了具有超大表面积（1121.80 m2 g−1）的高导电性框架，能够有效地固定一抗（Ab1）和稳定加速的电荷转移，从而协同放大信号输出。得益于这种多重扩增策略，所提出的免疫传感器实现了0.51 fg mL−1的极低检测限，以及异常宽的动态范围（从10 fg mL−1到100 ng mL−1），同时在复杂基质中表现出出色的选择性，保持了高重复性和稳定性。本研究为构建高性能免疫传感器提供了一种合理的多扩增设计范式，并强调了其在AMI早期诊断中的应用前景。

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