Journal of Colloid and Interface Science最新文献_第8页

Controllable fabrication of bioinspired pollen-like microparticles via solvent evaporation of polyvinyl alcohol (PVA)-stabilized microfluidic polymer microdroplets 聚乙烯醇（PVA）稳定微流控聚合物微滴溶剂蒸发制备仿生花粉样微滴的可控制备。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-17 DOI: 10.1016/j.jcis.2026.139926

Zhi-Jun Meng , Yan-Ling Yu , Xin-Tong Chen , Tao Pang , Jian He , Chun-Chun Wang , Hong-Lu Zhang , Tian-Liang Wang , Bai-Ren Hu , Hong Peng

Shaping the polymeric materials into pollen-inspired microparticles with unique structural properties represent a promising area in drug delivery, environmental sensing, and biomaterials. This work reports a robust droplet microfluidic method for fabricating bioinspired pollen-like microparticles from polyvinyl alcohol (PVA) stabilized polymer-contained chloroform microdroplets followed by a solvent evaporation induced consolidation process. Monodisperse oil in water droplets containing dissolved polymer(s) in chloroform are initially generated in a glass capillary microfluidic device using an aqueous continuous phase containing PVA. The PVA provides robust droplet stability during the incubation/evaporation process by suppressing droplet coalescence and enabling reproducible interfacial conditions for morphology development. By systematically varying polymer type (homopolymer or copolymer), polymer concentration, PVA concentration (0.5% to 5.0% (w/v)), incubation temperature (5 °C to 30 °C), and the number of polymer components (one to four), we achieved precise control over particle morphology without requiring elaborately synthesized block copolymer or conjugate polymers. By leveraging these variables, comprehensive characterization through optical microimaging and scanning electron microscopy (SEM) are used to reveal distinct structural outcomes: single-component polymer droplets evolved into spherical microparticles with smooth, porous, or concave surfaces, whereas multi-component droplets yielded complex non-spherical and multi-compartment structures mimicking Bougainvillea, Canna, and Pinus pollen. This study elucidates the interplay between fabrication parameters and microparticle morphology properties, providing a versatile, synthesis-light strategy for innovatively designing functional microparticles with tunable bioinspired features from common polymers.

将聚合物材料塑造成具有独特结构特性的花粉激发微粒，在药物输送、环境传感和生物材料方面具有广阔的前景。本研究报告了一种强大的液滴微流控方法，用于从聚乙烯醇（PVA）稳定的含有聚合物的氯仿微液滴中制备生物启发花粉样微颗粒，然后进行溶剂蒸发诱导固化过程。在玻璃毛细管微流控装置中，使用含有PVA的水连续相，首先产生含有氯仿中溶解聚合物的水滴中的单分散油。PVA通过抑制液滴聚结和为形态发育提供可复制的界面条件，在孵育/蒸发过程中提供强大的液滴稳定性。通过系统地改变聚合物类型（均聚物或共聚物）、聚合物浓度、PVA浓度（0.5%至5.0% (w/v)）、孵育温度（5°C至30°C）和聚合物组分数量（1至4），我们实现了对颗粒形态的精确控制，而无需精心合成嵌段共聚物或共轭聚合物。通过利用这些变量，通过光学微成像和扫描电子显微镜（SEM）进行综合表征，揭示了不同的结构结果：单组分聚合物液滴演变成具有光滑、多孔或凹表面的球形微颗粒，而多组分聚合物液滴则产生复杂的非球形和多室结构，模仿九重梅、美美子和松花粉。这项研究阐明了制造参数和微粒形态特性之间的相互作用，为创新地设计具有可调生物特征的普通聚合物的功能微粒提供了一种通用的合成光策略。

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引用次数: 0

Disulfiram-enhanced bacterial cuproptosis-like death synergized with chemodynamic therapy for potentiated resistant infection treatment and accelerated wound healing 双硫仑增强细菌性铜中毒样死亡与化学动力治疗协同作用，增强耐药感染治疗和加速伤口愈合

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-14 DOI: 10.1016/j.jcis.2026.139904

Zongmian Wang , Peng Zhao , Huanying Zhao , Zhonghan Li , Liqun Chi , Hao Wang , Wei Gu

The bacterial cuproptosis-like death presents a promising strategy against antibiotic-resistant infections, yet its efficacy remains constrained by the insufficient influx of copper ions into bacteria. Inspired by the role of disulfiram (DSF) in disrupting copper homeostasis, we herein present an injectable hydrogel-based therapeutic system featuring DSF-enhanced bacterial cuproptosis-like death, synergistically combined with chemodynamic therapy (CDT), which demonstrated enhanced efficacy against methicillin-resistant Staphylococcus aureus (MRSA) in both in vitro and in vivo models. Meanwhile, the underlying mechanism of DSF-enhanced bacterial cuproptosis-like death was explored at the transcriptional level. Moreover, the developed hydrogel fostered a pro-healing microenvironment by promoting angiogenesis, collagen deposition, and fibroblast proliferation in a mouse model of the MRSA-infected wound. This hydrogel-based DSF-enhanced bacterial cuproptosis-like death provides a synergized strategy for treating antibiotic-resistant infected wounds.

细菌铜中毒样死亡是对抗抗生素耐药感染的一种有希望的策略，但其有效性仍然受到铜离子流入细菌不足的限制。受双硫仑（DSF）在破坏铜稳态中的作用启发，我们在此提出了一种可注射的水凝胶治疗系统，该系统具有DSF增强的细菌铜中毒样死亡，与化学动力学治疗（CDT）协同作用，在体外和体内模型中均显示出对耐甲氧西林金黄色葡萄球菌（MRSA）的增强疗效。同时，从转录水平探讨了dsf增强细菌铜裂样死亡的潜在机制。此外，在mrsa感染的小鼠伤口模型中，开发的水凝胶通过促进血管生成、胶原沉积和成纤维细胞增殖来促进愈合的微环境。这种基于水凝胶的dsf增强细菌性铜中毒样死亡为治疗抗生素耐药感染伤口提供了一种协同策略。

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引用次数: 0

Bifunctional mechanism of immobilized organic molecule to steer Zn2+ and polyiodides transport kinetics toward ultra-stable aqueous ZnI2 batteries 固定化有机分子引导Zn2+和多碘化物向超稳定水相氧化锆电池转移动力学的双功能机制

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-13 DOI: 10.1016/j.jcis.2026.139884

Xinxing Zhan , Ao Xu , Jiakai Zhang , Xiubin Ren , Yangyang Wang , Xin Tong , Yi Shao , Gang Wang , Xiaojie Liu

Aqueous zinc‑iodine batteries (AZIBs) have been considered due to the significant potential for multi-electron transfer reactions and a high theoretical capacity of 211 mAh g⁻¹ and a considerable output potential. Nevertheless, aqueous ZnI₂ batteries face some formidable challenges in conventional aqueous electrolytes, including catastrophic Zn dendrite hyperplasia and severe parasitic reactions, and terrible shuttle effect of polyiodides. To address these concerns, it has been recognized that hydrogel electrolyte (HE) can effectively block the active water molecules and coordinate with Zn²⁺, thus inhibiting the growth of zinc dendrites and meanwhile can mitigate the shuttle effects. Herein, anionic polyacrylamide (PAM) hydrogel electrolyte with immobilization of organic molecule of amber acid with carboxyl functional groups elaborately designed with bifunctional mechanism to address the adverse reactions simultaneously on both Zn anode and I₂ cathode. The immobilization of organic additives can build suitable ion transport highways for the modulation of Zn²⁺ and polyiodides transport kinetics toward ultra-stable aqueous ZnI₂ Batteries. Eventually, as a proof of demonstration, the assembled PAM/AA based aqueous ZnI₂ cell can yield an remarkable rate performance and a high and maintained capacity of 138 mAh g⁻¹ over 15,000 cycles with a negligible decay rate of 0.005 ‰ per cycle at a high current of 5 Ag⁻¹.

锌碘水溶液电池（azib）由于具有显著的多电子转移反应潜力和211 mAh g−1的高理论容量和相当大的输出电位而被考虑。然而，在传统的水溶液电解质中，水氧化锆电池面临着严峻的挑战，包括灾难性的锌枝晶增生和严重的寄生反应，以及多碘化物的可怕穿梭效应。为了解决这些问题，人们认识到水凝胶电解质（HE）可以有效地阻断活性水分子并与Zn2+配合，从而抑制锌枝晶的生长，同时可以减轻穿梭效应。本文设计了具有羧基官能团固定琥珀酸有机分子的阴离子聚丙烯酰胺（PAM）水凝胶电解质，该电解质具有双功能机制，可同时解决Zn阳极和I2阴极上的不良反应。有机添加剂的固定化可以为调节Zn2+和多碘化物向超稳定水相电池的迁移动力学建立合适的离子传输通道。最后，作为证明，组装的PAM/AA基水相氧化锆电池在5 Ag−1的高电流下，可以产生显著的倍率性能，并在15,000次循环中保持138 mAh g−1的高容量，每循环的衰减率为0.005‰，可以忽略。

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引用次数: 0

Corrigendum to “Construction of hierarchical C/MoS2 nanobelts wrapped by N-doped carbon toward high-performance lithium/sodium storage” [J. Colloid Interface Sci. 700 (2025) 138458] “n掺杂碳包裹多层C/MoS2纳米带的构建用于高性能锂/钠存储”的更正[J]。胶体界面科学，2000,26 (5):13458 [j]。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-20 DOI: 10.1016/j.jcis.2026.139905

Bingqing Ye , Xingke Cai , Ruo Zhao

引用次数: 0

Plasmonic bimetallic Au-Ag nanoclusters embedded in covalent organic frameworks as efficient photocatalysts for simultaneous nizatidine degradation and H2O2 evolution 嵌套在共价有机框架中的等离子体双金属Au-Ag纳米团簇作为同时降解氮化吡啶和H2O2的高效光催化剂

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-22 DOI: 10.1016/j.jcis.2026.139960

Yujuan Guo , Sheng Liu , Jun Du , Yuan Xue , Zushun Xu , Fangfang Du , Qing Li , Qianyuan He

Covalent organic frameworks (COFs) demonstrate great potential as photocatalysts for the remediation of organic pollutants; however, their efficiency is often limited by the factor of rapid electron-hole recombination. In response to this challenge, we anchor ultrasmall (∼2.5 nm) bimetallic Au-Ag nanoclusters within the porous architecture of a nitrogen-rich COFs scaffold. The nitrogenated frameworks not only provide a high surface area and abundant active sites but also facilitate electron transfer. Meanwhile, the ultrafine Au-Ag nanoclusters exhibit strong plasmonic coupling, serving as dual light-harvesting units and electron transfer mediators. This synergistic configuration enhances carrier separation, enabling plasmon-exciton co-driven catalysis. The optimized COF-Au-Ag achieves simultaneous degradation of nizatidine (NZTD) and production of hydrogen peroxide (H₂O₂) via a unified photocatalytic mechanism centered on efficient charge separation and directional migration. This photocatalyst illustrates excellent recyclability in five consecutive cycles of use, offering a novel approach for designing multifunctional COF-based photocatalytic systems.

共价有机框架（COFs）作为光催化剂在有机污染物的修复中具有巨大的潜力。然而，它们的效率往往受到快速电子-空穴复合因素的限制。为了应对这一挑战，我们将超小（~ 2.5 nm）双金属Au-Ag纳米团簇固定在富氮COFs支架的多孔结构中。氮化框架不仅具有较高的比表面积和丰富的活性位点，而且有利于电子转移。同时，超细Au-Ag纳米团簇表现出强等离子体耦合，可作为双光捕获单元和电子转移介质。这种协同配置增强了载流子分离，使等离子体激子共驱动催化成为可能。优化后的COF-Au-Ag通过以高效电荷分离和定向迁移为中心的统一光催化机制，实现了尼扎替丁（NZTD）的降解和过氧化氢（H2O2）的生成。该光催化剂在连续五个循环使用中表现出优异的可回收性，为设计多功能cof光催化系统提供了一种新方法。

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引用次数: 0

Ridge-structured PANI with interfacial stress-concentrating: reversible protonation driven high sensitivity over wide pressures 具有界面应力集中的脊状结构聚苯胺：在宽压力下可逆质子化驱动的高灵敏度。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-13 DOI: 10.1016/j.jcis.2026.139888

Yudong Song , Yang Zou , Xinjian Shi , Shengyan Yin , Song Liang , Zhenning Liu , Qinrong He , Hang Sun

In research on pressure-sensitive electronic skin (e-skin) for motion and physiological signal monitoring, balancing sensitivity with a broad pressure-sensing range and intelligent sensing capabilities is of critical importance. Inspired by the micro-ridge of human skin, this work integrates a bionic micro-ridge structure with a PANI-based resistivity modulation strategy to develop an e-skin that enables both high sensitivity and a wide pressure-sensing range for motion and physiological signals monitoring. Ridge-structured PANI was grown in-situ on hydrolyzed polyacrylonitrile fibers via chemical oxidative polymerization. By utilizing the reversible protonation-deprotonation mechanism of PANI in combination with a pH modulation strategy, we adjusted the resistivity of the PANI nanofibrous films to investigate the impact on sensing performance. The synergistic effects of ridge-structured PANI, resistivity modulation and micro-deformation effect of the nanofibrous films enabled the e-skin to exhibit a high sensitivity (maximum 1.91 kPa⁻¹) and a wide pressure-sensing range (1–600 kPa). The e-skin can accurately and stably monitor a wide range of signals, ranging from subtle throat vibrations during phonation and gentle abdominal undulations caused by breathing, to larger plantar pressure changes during walking or running. Furthermore, we combined the e-skin with a one-dimensional convolutional neural network (1D CNN, PyTorch-based), enabling rapid and accurate classification of four typical respiratory states (Normal breathing, Rapid breathing, Deep breathing, and Apnea). This work, especially the combination of bionic micro-nano structures and resistivity modulation strategy, provides new insights for the development of pressure-sensitive e-skins with excellent sensing performance.

在用于运动和生理信号监测的压敏电子皮肤（e-skin）研究中，平衡灵敏度与广泛的压敏范围和智能传感能力是至关重要的。受人体皮肤微脊的启发，本研究将仿生微脊结构与基于聚苯胺的电阻率调制策略相结合，开发出一种具有高灵敏度和宽压力感应范围的电子皮肤，用于运动和生理信号监测。采用化学氧化聚合的方法，在水解的聚丙烯腈纤维上原位生长出脊状聚苯胺。我们利用聚苯胺的可逆质子-去质子化机制，结合pH调制策略，调整聚苯胺纳米纤维薄膜的电阻率，研究其对传感性能的影响。脊状结构聚苯胺与纳米纤维薄膜的电阻率调制和微变形效应的协同作用使电子皮肤具有高灵敏度（最大1.91 kPa-1）和宽压力感应范围（1-600 kPa）。这种电子皮肤可以准确、稳定地监测各种信号，从发声时喉咙的细微振动和呼吸引起的腹部轻微波动，到走路或跑步时足底压力的较大变化。此外，我们将电子皮肤与一维卷积神经网络（1D CNN，基于pytorch）相结合，实现了四种典型呼吸状态（正常呼吸、快速呼吸、深呼吸和呼吸暂停）的快速准确分类。这项工作，特别是仿生微纳结构与电阻率调制策略的结合，为开发具有优异传感性能的压敏电子皮肤提供了新的见解。

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引用次数: 0

Corrigendum to “Self-oxygenating nanoplatform integrating CRISPR/Cas9 gene editing and immune activation for highly efficient photodynamic therapy” [J. Colloid Interface Sci. 693 (2025) 137632] 整合CRISPR/Cas9基因编辑和免疫激活的自氧纳米平台用于高效光动力治疗[J]。胶体界面科学。693 (2025)137632]

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-23 DOI: 10.1016/j.jcis.2026.139906

Shi-Cheng Tian , Xun-Huan Song , Ke-Ke Feng , Cheng-Lei Li , Yi-Fan Tu , Yong-Shan Hu , Jing-Wei Shao

引用次数: 0

Mechanistic study on the enhanced N2 selectivity for NH3 selective oxidation over Pt-encapsulated Cu-ZSM-5 catalysts pt包封Cu-ZSM-5催化剂增强NH3选择性氧化N2选择性的机理研究

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-19 DOI: 10.1016/j.jcis.2026.139941

Weixiang Chen , Yuxiong Wang , Yaoyu Zhang , Yue Liu , Zhongbiao Wu

Ammonia (NH₃) has emerged as a promising zero‑carbon energy source for energy and transportation. However, its utilization leads to the emission of NH₃, which contributes to PM_2.5 formation and disrupts the global nitrogen cycle. Selective catalytic oxidation (SCO) represents a mainstream technology for NH₃ treatment, yet achieving both sufficient activity and high N₂ selectivity across a broad temperature window remains challenging. Here, a core-shell Pt@Cu-ZSM-5 catalyst was employed for NH₃ catalytic abatement by encapsulating metallic Pt clusters (Pt⁰) inside the channels of Cu ion-exchanged ZSM-5. The optimal sample achieved a complete NH₃ conversion below 250 °C and maintained over 92% N₂ selectivity from 250 to 500 °C due to the synergism between the Pt−Cu dual sites. Mechanistic studies revealed that NH₃ oxidation preferentially occurred on Pt⁰ sites with excellent redox capacity to produce N₂O and NO_x at relatively low and high temperatures, respectively. And the presence of Cu ions (Cu^δ+) could efficiently both inhibit the formation of N₂O on Pt⁰ sites and reduce NO_x emission, thereby improving the N₂ selectivity. At relatively low temperatures, NH₃-solvated Cu⁺(NH₃)₂ could migrate to the adjacent Pt sites and reduce the adsorbed NO* species from NH₃ oxidation, damping the formation of N₂O. At high temperatures, the NO and NO₂ emitted from Pt⁰ sites could be reduced on Cu^δ+ sites via a typical selective catalytic reduction. This study provides new insights into the rational design of bifunctional SCO catalysts and offers a comprehensive understanding of the synergistic effects in Pt−Cu dual-site systems.

氨（NH3）已成为一种很有前途的能源和交通零碳能源。然而，它的利用会导致NH3的排放，NH3有助于PM2.5的形成，并破坏全球氮循环。选择性催化氧化（SCO）是NH3处理的主流技术，但在较宽的温度窗内实现足够的活性和高的N2选择性仍然是一个挑战。本研究采用核壳Pt@Cu-ZSM-5催化剂将金属Pt团簇（Pt0）包封在Cu离子交换的ZSM-5的通道内，用于NH3的催化减排。最佳样品在250°C以下实现了NH3的完全转化，并且由于Pt - Cu双位点之间的协同作用，在250 ~ 500°C范围内保持了92%以上的N2选择性。机理研究表明，NH3氧化优先发生在具有良好氧化还原能力的Pt0位点上，分别在相对低温和高温下生成N2O和NOx。Cu离子（Cuδ+）的存在既能有效抑制Pt0位点上N2O的生成，又能减少NOx的排放，从而提高N2的选择性。在相对较低的温度下，NH3溶剂化的Cu+(NH3)2可以迁移到邻近的Pt位点，减少NH3氧化所吸附的NO*，抑制N2O的形成。在高温下，从Pt0位点释放的NO和NO2可以通过典型的选择性催化还原作用在Cuδ+位点上被还原。该研究为合理设计双功能SCO催化剂提供了新的见解，并对Pt - Cu双位点体系的协同效应提供了全面的理解。

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引用次数: 0

Recycling two wastes for constructing vanadium nitride/vanadium trioxide dual-decorated carbonfiber interlayer and porous carbon to improve Lithium-Sulfur batteries 回收两种废弃物制备氮化钒/三氧化钒双装饰碳纤维夹层和多孔碳，改善锂硫电池性能

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-18 DOI: 10.1016/j.jcis.2026.139934

Li Wang , Jiao Li , Yun Chen , Qiuyue Shi , Yan Zheng , Linyue Qu , Mingwu Xiang , Fangkun Li , Junming Guo , Wei Bai , Dengbang Jiang

Reasonably constructing functional interlayers and sulfur host materials to synergistically suppress the shuttle effect of lithium polysulfides (LiPSs) and enhance reaction kinetics is key to effectively improve electrochemical performance of lithium‑sulfur (LiS) batteries. Herein, two wastes including cotton masks and coffee shells are recycled to prepare the polar vanadium nitride (VN)/vanadium trioxide (V₂O₃) co-decorated carbon fiber functional interlayer and biological porous carbon via facile liquid-phase impregnation and pyrolysis approaches. The functional interlayer as a physical barrier to suppress the dissolution and shutting of the LiPSs, whilst providing an interconnected highly conductive network for boosting electronic transmission. Especially, the V₂O₃ and VN particles exhibit strong synergistic adsorption capacity of the LiPSs by a density functional theory calculation due to the abundant empty 3d orbitals of vanadium atoms and strong polarity of nitrogen/oxygen atoms. Additionally, the redox conversion of the LiPSs is also synchronously accelerated by the conductive VN. So, the functional interlayer endows the biological porous carbon‑sulfur composite cathode materials with good electrochemical performances. The initial discharge capacity is 1018.3 mAh g⁻¹ at 0.2C, whilst 802.5 mAh g⁻¹ can be maintained after 200 cycles. After 500 cycles at 2.0C, the discharge capacity of 540.1 mAh g⁻¹ is also obtained. Even with the high sulfur content of 80 wt% and 90 wt%, the relatively good electrochemical performances are also achieved.

合理构建功能中间层和硫主体材料，协同抑制多硫化物锂（LiPSs）的穿梭效应，增强反应动力学是有效提高锂硫电池电化学性能的关键。利用棉花面具和咖啡壳两种废弃物，通过液相浸渍和热解制备极性氮化钒(VN)/三氧化钒（V2O3）共装饰碳纤维功能夹层和生物多孔炭。功能中间层作为抑制LiPSs溶解和关闭的物理屏障，同时提供一个互连的高导电性网络，以促进电子传输。通过密度泛函理论计算，V2O3和VN颗粒由于具有丰富的钒原子空三维轨道和强极性的氮/氧原子，表现出较强的协同吸附能力。此外，LiPSs的氧化还原转化也被导电VN同步加速。因此，功能中间层赋予了生物多孔碳硫复合正极材料良好的电化学性能。在0.2C时的初始放电容量为1018.3 mAh g - 1，而在200次循环后可保持802.5 mAh g - 1。在2.0C下循环500次后，放电容量为540.1 mAh g−1。即使在含硫量高达80 wt%和90 wt%的情况下，也能获得较好的电化学性能。

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引用次数: 0

Glutathione- responsive Phototheranostic platform for imaging-guided enhanced oxidation photoimmunotherapy-ferroptosis synergistic hepatocellular carcinoma therapy 谷胱甘肽响应光治疗平台成像引导增强氧化光免疫治疗-铁下垂协同肝癌治疗。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-05-01 Epub Date: 2026-01-17 DOI: 10.1016/j.jcis.2026.139927

Zhuanxia He , Limin Zhang , Xiujun Gao , Jiaxin Zhong , Yanqi Zhang , Feng Gao

Phototheranostics have emerged as a promising approach in precision medicine. However, the poor tumor selectivity of photosensitizers, insufficient oxidative stress and the intrinsic antioxidant system of tumors compromise the efficacy of phototherapeutic strategies. In this study, we designed a novel phototheranostic platform (ICP@SRF-GPC3 NPs) for active tumor-targeted imaging and oxidation-enhanced photoimmunotherapy-ferroptosis combined therapy. The ICP@SRF-GPC3 NPs were fabricated by conjugating near-infrared photosensitizer IR780 with cystine-polyethylene glycol, modifying it with the Glypican-3 monoclonal antibody and encapsulating of the ferroptosis inducer sorafenib (SRF). ICP@SRF-GPC3 NPs with improved water solubility and liver tumor specificity can produce reactive oxygen species (ROS) upon 808 nm laser irradiation and enable photoimmunotherapy-mediated oxidation treatment. In the tumor microenvironment, the high concentration of glutathione (GSH) cleaved the linkage between the IR780 and the cystine moiety, realizing superior near-infrared fluorescence imaging and synergistic photoimmunotherapy-ferroptosis therapy. The released SRF inhibited cystine/glutamate antiporter, thereby blocking cystine uptake in tumor cells and suppressing GSH synthesis. By depleting existing GSH reserves while simultaneously inhibiting its biosynthetic pathway, ICP@SRF-GPC3 NPs effectively exhausted intracellular GSH, weakening the anti-oxidation ability of tumor cells and amplifying oxidative stress. In a BALB/c nude mouse model bearing GPC3-overexpressing Hepa1–6 allografts, the combination of photoimmunotherapy with ferroptosis not only effectively suppressed primary tumor growth through amplified ROS generation, but also promoted damage-associated molecular patterns release, thereby eliciting a robust immune response that eliminated metastatic and distant tumors. Overall, ICP@SRF-GPC3 NPs offers a promising strategy for regulating GSH and ROS levels in synergistic photoimmunotherapy-ferroptosis antitumor therapy, which has potential clinical applications.

光疗已经成为精准医学中一种很有前途的方法。然而，光敏剂的肿瘤选择性差、氧化应激不足以及肿瘤固有的抗氧化系统影响了光疗策略的效果。在这项研究中，我们设计了一个新的光治疗平台（ICP@SRF-GPC3 NPs），用于主动肿瘤靶向成像和氧化增强光免疫治疗-铁下垂联合治疗。通过将近红外光敏剂IR780与半胱氨酸-聚乙二醇偶联，用Glypican-3单克隆抗体修饰，包封铁衰诱导剂sorafenib （SRF）制备ICP@SRF-GPC3 NPs。ICP@SRF-GPC3 NPs具有较好的水溶性和肝脏肿瘤特异性，可在808 nm激光照射下产生活性氧（ROS），实现光免疫治疗介导的氧化治疗。在肿瘤微环境中，高浓度谷胱甘肽（GSH）切断了IR780与胱氨酸片段之间的连接，实现了优越的近红外荧光成像和协同光免疫治疗-铁凋亡治疗。释放的SRF抑制胱氨酸/谷氨酸反转运蛋白，从而阻断肿瘤细胞对胱氨酸的摄取，抑制GSH合成。ICP@SRF-GPC3 NPs通过消耗现有的GSH储备，同时抑制其生物合成途径，有效地耗尽细胞内GSH，削弱肿瘤细胞的抗氧化能力，放大氧化应激。在携带gpc3过表达Hepa1-6同种异体移植物的BALB/c裸鼠模型中，光免疫治疗与铁上沉联合治疗不仅通过扩增ROS生成有效抑制原发肿瘤生长，而且还促进损伤相关分子模式的释放，从而引发强大的免疫应答，消除转移性和远处肿瘤。总之，ICP@SRF-GPC3 NPs在光免疫-铁下垂协同抗肿瘤治疗中提供了一种很有前景的调节GSH和ROS水平的策略，具有潜在的临床应用价值。

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引用次数: 0