IF 6.6 3区材料科学 Q1 ELECTROCHEMISTRY

Electrochimica Acta

Pub Date : 2026-02-05 DOI: 10.1016/j.electacta.2026.148391

Jiabao Li, Xinwei Zhang, Hongxia Li

The accumulation of bubbles on the electrode surface can block the active catalytic sites, hindering the transmission of ions and electrolytes, thereby limiting the achievable current density. Inspired by fish scales and petals, this study designed a biomimetic electrode with multi-scale bubble management capabilities. By combining topological electrode design with surface modification of nanostructures, this electrode can facilitate the rapid detachment and directional transport of bubbles, effectively guiding the bubbles to leave along the preset path, thereby alleviating the adverse effects caused by bubble coverage. Both simulation and experimental results demonstrate that the biomimetic electrode significantly reduces the average bubble size by 47%, enhances bubble detachment frequency, and induces a distinct upward asymmetric bubble distribution on both sides of the electrode. These enhanced bubble management characteristics enable the biomimetic electrode to achieve approximately a 33.4% reduction in hydrogen evolution reaction overpotential at a current density of 100 mA·cm^-² relative to the non-structured electrode. The proposed multi-scale collaborative bubble management strategy provides valuable insights into improving mass transfer and reaction kinetics in solid-liquid-gas three-phase electrochemical systems. The findings offer an important reference framework for the design of electrochemical electrodes involving gas evolution.

气泡在电极表面的积累会阻塞活性催化位点，阻碍离子和电解质的传输，从而限制了可实现的电流密度。本研究以鱼鳞和花瓣为灵感，设计了一种具有多尺度气泡管理能力的仿生电极。通过拓扑电极设计与纳米结构表面修饰相结合，该电极可以促进气泡的快速脱离和定向输送，有效引导气泡沿预设路径离开，从而减轻气泡覆盖带来的不利影响。仿真和实验结果均表明，仿生电极的平均气泡尺寸显著减小47%，气泡脱离频率显著提高，电极两侧气泡呈明显的向上不对称分布。这些增强的气泡管理特性使仿生电极在电流密度为100 mA·cm-²时，相对于非结构化电极，析氢反应过电位降低了约33.4%。提出的多尺度协同气泡管理策略为改善固液气三相电化学系统的传质和反应动力学提供了有价值的见解。研究结果为设计涉及气体演化的电化学电极提供了重要的参考框架。

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引用次数: 0

Ligand-Engineered Cu–Zn–In–Se Quantum Dots for Flexible Laminated Luminescent Solar Concentrators 配体工程的Cu-Zn-In-Se量子点用于柔性层合发光太阳能聚光器

IF 11.9 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Journal of Materials Chemistry A

Pub Date : 2026-02-05 DOI: 10.1039/d5ta10030e

Xin Liu, Federico Rosei, Bing Luo, Lei Jin, Jiabin Liu, Daniele Benetti, Federico Rosei

Luminescent solar concentrators (LSCs) are promising for building-integrated photovoltaics, where color tunability, form factor, and scalability are often more important than absolute efficiency. Here, a major challenge consists in developing eco-friendly luminophores with stable and controllable optical properties. Cu-doped Zn–In–Se (CZISe) quantum dots (QDs) are surface-passivated with trioctylphosphine (TOP), providing a model system to examine the role of ligand engineering in heavy-metal-free emitters. TOP modification increases the photoluminescence quantum yield from 22 ± 5% to 67 ± 5%, extends carrier lifetime, and induces a blue-shifted emission, reflecting improved surface passivation and altered excitonic dynamics. These changes nearly double the optical efficiency of laminated LSCs compared to devices with unmodified QDs. Importantly, this study reports flexible laminated LSCs fabricated with polyvinyl chloride (PVC) substrates, which maintain stable optical performance under mechanical deformation. This demonstration establishes ligand modification and flexible device architectures as complementary approaches for advancing the practical applicability of eco-friendly LSCs.

发光太阳能聚光器（LSCs）在建筑集成光伏发电中很有前途，其中颜色可调性、形状因素和可扩展性通常比绝对效率更重要。在这里，一个主要的挑战在于开发具有稳定和可控光学特性的环保发光团。用三辛基膦（TOP）对cu掺杂Zn-In-Se （CZISe）量子点（QDs）进行表面钝化，为研究配体工程在无重金属发射体中的作用提供了一个模型系统。TOP修饰将光致发光量子产率从22±5%提高到67±5%，延长载流子寿命，并诱导蓝移发射，反映了表面钝化改善和激子动力学的改变。与未经修饰的量子点相比，这些变化使层压LSCs的光学效率提高了近一倍。重要的是，本研究报告了用聚氯乙烯（PVC）衬底制造的柔性层压LSCs，在机械变形下保持稳定的光学性能。该演示建立了配体修饰和灵活的器件架构，作为推进生态友好型LSCs实际适用性的互补方法。

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引用次数: 0

Atomic-Nanoscale Reassembly of Nanoparticles and Precursors Driven by Nanofluid Feed Flame 纳米流体火焰驱动的纳米颗粒及其前驱体的原子-纳米级重组

IF 9.5 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces

Pub Date : 2026-02-05 DOI: 10.1021/acsami.5c19660

Weiqi Chen, Tingting Xu, Runtian Yu, Zhimei Shu, Jiayi Xiao, Si Lan, Yaoyao Ying, Dong Liu

The flame-driven reassembly of nanoparticles mixed with precursors via nanofluid feed is demonstrated, and the underlying assembly mechanism is systematically elucidated. A variety of nanoparticles are directly dispersed into Ca–Fe precursor solutions to form nanofluid for liquid-fed flame synthesis of supported catalysts in this approach. Depending on the nanoparticle composition, the flame process yields distinct products, including amorphous Ca–Al–Fe oxides, crystallized Ca₂Fe₂O₅/MgO, and CaTiO₃-amorphous Fe oxides, confirming the occurrence and tunability of nanoparticle-precursor assembly in the flame environment. During assembly, crystalline phases with low melting points and broad compositional ranges are preferentially formed, while confusion criteria can result in amorphous structures. The reassembled Ca₂Fe₂O₅/MgO is applied to the chemical looping reforming of toluene, achieving a syngas yield of 3.36 Nm³/L and a toluene conversion of 92.8%. The resulting syngas exhibits a purity above 90% with an H₂/CO ratio exceeding 2. Flame synthesis enabled by nanofluid feed thus represents an efficient and versatile strategy for producing thermally stable supported catalysts.

研究了火焰驱动下纳米颗粒与前驱体混合通过纳米流体进行重组的过程，并系统地阐明了其潜在的组装机制。该方法将多种纳米颗粒直接分散到Ca-Fe前驱体溶液中，形成纳米流体，用于液供火焰合成负载型催化剂。根据纳米颗粒的组成，火焰过程产生不同的产物，包括无定形的Ca-Al-Fe氧化物、结晶的Ca2Fe2O5/MgO和catio3 -无定形的Fe氧化物，证实了纳米颗粒前驱体组装在火焰环境中的存在和可调性。在组装过程中，优先形成具有低熔点和宽组成范围的结晶相，而混淆标准可能导致非晶结构。将重组后的Ca2Fe2O5/MgO应用于甲苯的化学环重整，合成气产率为3.36 Nm3/L，甲苯转化率为92.8%。所得合成气纯度在90%以上，H2/CO比值大于2。火焰合成使纳米流体饲料因此代表了生产热稳定负载催化剂的有效和通用的策略。

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引用次数: 0

Supramolecular Assemblies of Self-Immolative Janus Dendrimers With Rapid Photodegradation Response. 具有快速光降解反应的自焚双面树状大分子的超分子组装体。

IF 12.1 2区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Small

Pub Date : 2026-02-05 DOI: 10.1002/smll.202511067

Chuanfeng Li, Jiabin Luan, Daniela A Wilson, Elizabeth R Gillies

Advanced supramolecular assemblies with predefined lifetimes and rapid responses to stimuli are in high demand for applications such as biomedical delivery systems. However, such assemblies are rarely able to respond rapidly and completely to stimuli, with predictable changes in morphology. Here, we introduce monodisperse self-immolative Janus dendrimers (SIJDs) composed of hydrophilic oligo(ethylene glycol)-functionalized phenolic acid dendrons and hydrophobic monodisperse oligo(ethyl glyoxylate) chains having light-responsive end-groups. These SIJDs self-assemble into spherical nanoparticles in aqueous media. Upon ultraviolet (UV) light irradiation, the hydrophobic oligo(ethyl glyoxylate) units exhibit rapid end-to-end self-immolation within minutes. The depolymerization at the molecular level leads to a degradation pathway from spherical to crescent-shaped nanoparticles, which can be used for the rapid release of encapsulated molecules of interest.

具有预定寿命和对刺激的快速反应的先进超分子组件在生物医学输送系统等应用中具有很高的需求。然而，这种组合很少能够对刺激做出快速和完全的反应，并具有可预测的形态变化。在这里，我们引入了由亲水性低聚（乙二醇）功能化的酚酸树梢和具有光响应端基的疏水性单分散低聚（乙基乙醛酸）链组成的单分散自牺牲Janus树状大分子（SIJDs）。这些SIJDs在水介质中自组装成球形纳米颗粒。在紫外线（UV）光照射下，疏水寡聚（乙基乙氧基）单元在几分钟内表现出快速的端到端自焚。在分子水平上的解聚导致了从球形到新月形纳米颗粒的降解途径，这可以用于快速释放被封装的感兴趣的分子。

引用次数: 0

Topography-Free Dual-Lubricant Patterned Slippery Surfaces for Programmable Droplet Control and High-Performance Water Harvesting. 用于可编程液滴控制和高性能集水的无地形双润滑剂图案滑面。

IF 12.1 2区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Small

Pub Date : 2026-02-05 DOI: 10.1002/smll.202510374

Jinchul Yang, Eonji Kim, Doo Young Choi, Jineun Lee, Hwanhui Yun, Jinhee Lee, Kyuyoung Heo, In Hwan Jung, Yong-Jae Jin, Joon Heon Kim, Giseop Kwak, Wang-Eun Lee

Passive droplet control is critical for next-generation water harvesting, fluidic logic, and adaptive wetting surfaces. Here, we report a scalable, topography-free slippery liquid-infused porous surface (SLIPS) based on poly[1-phenyl-2-[p-(trimethylsilyl)phenyl]acetylene] (PTMSDPA). By selectively chemically fluorinating specific regions of the porous PTMSDPA film, followed by sequential infusion of two immiscible hydrophobic lubricants into their respective affinity-matched polymer matrices, this approach enables interfacial energy contrasts that direct droplet motion. The heterogeneous oil-infused porous surface (HOIPS) has a unique intrinsic fluorescence enabling real-time, dye-free visualization of infiltrated lubricant domains. Owing to its ultrathin (∼200 nm) and flexible polymer structure, the HOIPS enables controllable droplet motion on flat, flexible, and curved substrates without reliance on surface topography, physical confinement, or asymmetric geometries. Sub-millimeter-scale HOIPS line patterns enable controlled droplet coalescence, shedding diameter, and release timing during condensation, and optimized patterns exhibit up to 2.5× higher water-harvesting performance compared to fluorinated-oil-based SLIPS, providing a material-efficient strategy for liquid-repellent surfaces. Taken together, these results establish PTMSDPA-based HOIPS as a versatile platform for controlled droplet manipulation and condensation management.

被动液滴控制对于下一代集水、流体逻辑和自适应润湿表面至关重要。在这里，我们报道了一种基于聚[1-苯基-2-[对-（三甲基硅基）苯基]乙炔（PTMSDPA）的可伸缩、无地形的光滑液体注入多孔表面（SLIPS）。通过选择性地对多孔PTMSDPA膜的特定区域进行化学氟化，然后将两种不混溶的疏水润滑剂依次注入各自的亲和匹配的聚合物基质中，这种方法可以实现直接液滴运动的界面能对比。非均相油注入多孔表面（HOIPS）具有独特的固有荧光，可以实时、无染料地显示渗透的润滑剂区域。由于其超薄（~ 200nm）和柔性聚合物结构，HOIPS能够在平坦、柔性和弯曲的基板上实现可控的液滴运动，而不依赖于表面形貌、物理限制或不对称几何形状。亚毫米级的HOIPS线模式可以控制液滴在凝结过程中的聚结、脱落直径和释放时间，与氟化油基slip相比，优化后的模式具有高达2.5倍的集水性能，为拒液表面提供了一种材料效率高的策略。综上所述，这些结果建立了基于ptmsdpa的HOIPS作为控制液滴操作和冷凝管理的通用平台。

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引用次数: 0

Bond strength of a multilayer graded zirconia to a self-adhesive resin cement 多层分级氧化锆与自粘树脂水泥的粘结强度

IF 3.5 3区材料科学 Q2 ENGINEERING, CHEMICAL

International Journal of Adhesion and Adhesives

Pub Date : 2026-02-05 DOI: 10.1016/j.ijadhadh.2026.104282

Beatriz Serralheiro da Cruz , Genesis Sulay Alfonzo-Leon , Alinne Siqueira de Carvalho , Camila da Silva Rodrigues , Cesar Rogerio Pucci , Renata Marques de Melo

The latest generation of zirconia used in dental applications features a graded microstructure combining tetragonal and cubic grains to balance translucency and mechanical strength. However, limited evidence exists regarding the adhesion of its individual layers, particularly when simplified protocols such as self-adhesive cementation are used. This study evaluated the interfacial bond strength between different layers of a multilayer zirconia (3Y-TZP, transition zone, and 5Y-PSZ) and a self-adhesive resin cement, with or without a universal primer, at baseline and after aging. Thirty slabs of multilayer zirconia (IPS e.max ZirCAD Prime) were air-abraded and bonded with resin composite cylinders (Multilink Speed) applied with or without a universal primer (Monobond N) (n = 15 per group). Half of the specimens were tested after 24 h and the others after six months of water storage. Micro-shear bond strength was measured, and failure modes were classified. Three-way ANOVA revealed that primer application and aging significantly affected bond strength (p < 0.001), while zirconia layer had no effect (p > 0.05). Primer use improved initial adhesion but did not provide long-term benefits, as bond strength decreased after aging in primed groups, whereas non-primed groups showed stable bonding performance despite compositional gradients in the ceramic substrate.

最新一代用于牙科应用的氧化锆具有结合四方和立方颗粒的渐变微观结构，以平衡半透明和机械强度。然而，关于其各个层的粘附性的证据有限，特别是当使用自粘胶结等简化方案时。本研究评估了多层氧化锆（3Y-TZP，过渡区和5Y-PSZ）与自粘树脂水泥不同层之间的界面结合强度，在基线和老化后，使用或不使用通用底漆。30块多层氧化锆板（IPS e.max ZirCAD Prime）被空气研磨，并与树脂复合圆柱体（Multilink Speed）结合，使用或不使用通用底漆（Monobond N）（每组N = 15）。其中一半在蓄水24小时后进行测试，另一半在蓄水6个月后进行测试。测量了微剪切粘结强度，并对其破坏模式进行了分类。三因素方差分析显示，底漆的使用和老化对粘结强度有显著影响（p < 0.001），氧化锆层对粘结强度没有影响（p > 0.05）。处理剂的使用改善了初始附着力，但没有提供长期的好处，因为处理剂组的结合强度在老化后会下降，而未处理剂组的结合性能稳定，尽管陶瓷基材中存在成分梯度。

{"title":"Bond strength of a multilayer graded zirconia to a self-adhesive resin cement","authors":"Beatriz Serralheiro da Cruz , Genesis Sulay Alfonzo-Leon , Alinne Siqueira de Carvalho , Camila da Silva Rodrigues , Cesar Rogerio Pucci , Renata Marques de Melo","doi":"10.1016/j.ijadhadh.2026.104282","DOIUrl":"10.1016/j.ijadhadh.2026.104282","url":null,"abstract":"<div><div>The latest generation of zirconia used in dental applications features a graded microstructure combining tetragonal and cubic grains to balance translucency and mechanical strength. However, limited evidence exists regarding the adhesion of its individual layers, particularly when simplified protocols such as self-adhesive cementation are used. This study evaluated the interfacial bond strength between different layers of a multilayer zirconia (3Y-TZP, transition zone, and 5Y-PSZ) and a self-adhesive resin cement, with or without a universal primer, at baseline and after aging. Thirty slabs of multilayer zirconia (IPS e.max ZirCAD Prime) were air-abraded and bonded with resin composite cylinders (Multilink Speed) applied with or without a universal primer (Monobond N) (n = 15 per group). Half of the specimens were tested after 24 h and the others after six months of water storage. Micro-shear bond strength was measured, and failure modes were classified. Three-way ANOVA revealed that primer application and aging significantly affected bond strength (p < 0.001), while zirconia layer had no effect (p > 0.05). Primer use improved initial adhesion but did not provide long-term benefits, as bond strength decreased after aging in primed groups, whereas non-primed groups showed stable bonding performance despite compositional gradients in the ceramic substrate.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"148 ","pages":"Article 104282"},"PeriodicalIF":3.5,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plasmon-Enhanced Electrochromism in Au Nanorod/WO3·H2O Hybrids for High-Performance Near-Infrared Smart Windows 用于高性能近红外智能窗口的金纳米棒/WO3·H2O杂化物的等离子体增强电致变色

IF 9.5 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces

Pub Date : 2026-02-05 DOI: 10.1021/acsami.5c17894

Himanshu Nath, Alok Kumar, Maria Amin, Shubham Kumar Singh, Raviraj Vankayala, Ritu Gupta

The development of dual-band electrochromic (EC) smart windows represents a transformative approach for next-generation energy-efficient buildings, enabling dynamic control over both visible and near-infrared (NIR) light transmittance. In this work, we present a comprehensive investigation of the morphology-dependent plasmonic-assisted enhanced performance of WO₃·H₂O (WH) electrochromic films via the integration of anisotropic Au nanostructures. By precisely tailoring the shape and size of Au nanorods (Au NRs) and nanoparticles (Au NPs) at dilute concentrations, we reveal their distinct roles in enhancing EC performance through localized surface plasmon resonance (LSPR). Among the hybrids, the WH-Au NR system exhibits outstanding electrochromic characteristics, achieving 70% optical modulation at 800 nm, a high areal capacitance of 21.7 mF/cm², exceptional coloration efficiency (172 cm²/C), and superior cycling stability with 99.9% retention over 3,000 cycles. Electrochemical analysis further reveals a 4.4-fold increase in donor density and 22.85-fold enhancement in diffusion coefficient compared with pristine WH films. Importantly, the device is fabricated entirely using scalable, solution-based processing and demonstrates strong NIR modulation, offering passive indoor temperature regulation. This study not only establishes the critical influence of Au nanostructure morphology on EC functionality but also provides a possible pathway toward high-performance smart windows for sustainable architectural applications.

双频电致变色（EC）智能窗户的开发代表了下一代节能建筑的变革方法，可以动态控制可见光和近红外（NIR）光的透射率。在这项工作中，我们通过整合各向异性金纳米结构，全面研究了形貌依赖的等离子体辅助WO3·H2O （WH）电致变色薄膜的增强性能。通过在稀释浓度下精确调整Au纳米棒（Au NRs）和纳米颗粒（Au NPs）的形状和大小，我们揭示了它们在通过局部表面等离子体共振（LSPR）增强EC性能方面的独特作用。其中，WH-Au NR系统表现出优异的电致变色特性，在800 nm处实现70%的光调制，高达21.7 mF/cm2的高面电容，出色的显色效率（172 cm2/C），以及优异的循环稳定性，在3000次循环中保持99.9%的保留率。电化学分析进一步表明，与原始WH膜相比，给体密度增加了4.4倍，扩散系数增加了22.85倍。重要的是，该器件完全采用可扩展的、基于解决方案的工艺制造，并展示了强大的近红外调制，提供被动室内温度调节。该研究不仅确定了金纳米结构形态对EC功能的关键影响，而且为可持续建筑应用的高性能智能窗户提供了可能的途径。

{"title":"Plasmon-Enhanced Electrochromism in Au Nanorod/WO3·H2O Hybrids for High-Performance Near-Infrared Smart Windows","authors":"Himanshu Nath, Alok Kumar, Maria Amin, Shubham Kumar Singh, Raviraj Vankayala, Ritu Gupta","doi":"10.1021/acsami.5c17894","DOIUrl":"https://doi.org/10.1021/acsami.5c17894","url":null,"abstract":"The development of dual-band electrochromic (EC) smart windows represents a transformative approach for next-generation energy-efficient buildings, enabling dynamic control over both visible and near-infrared (NIR) light transmittance. In this work, we present a comprehensive investigation of the morphology-dependent plasmonic-assisted enhanced performance of WO3·H2O (WH) electrochromic films via the integration of anisotropic Au nanostructures. By precisely tailoring the shape and size of Au nanorods (Au NRs) and nanoparticles (Au NPs) at dilute concentrations, we reveal their distinct roles in enhancing EC performance through localized surface plasmon resonance (LSPR). Among the hybrids, the WH-Au NR system exhibits outstanding electrochromic characteristics, achieving 70% optical modulation at 800 nm, a high areal capacitance of 21.7 mF/cm2, exceptional coloration efficiency (172 cm2/C), and superior cycling stability with 99.9% retention over 3,000 cycles. Electrochemical analysis further reveals a 4.4-fold increase in donor density and 22.85-fold enhancement in diffusion coefficient compared with pristine WH films. Importantly, the device is fabricated entirely using scalable, solution-based processing and demonstrates strong NIR modulation, offering passive indoor temperature regulation. This study not only establishes the critical influence of Au nanostructure morphology on EC functionality but also provides a possible pathway toward high-performance smart windows for sustainable architectural applications.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"9 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A self-regulating wearable OLED patch for accelerated wound healing via photobiomodulation-triggered drug delivery. 一种可自我调节的可穿戴OLED贴片，通过光生物调节触发的药物输送加速伤口愈合。

IF 10.7 2区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Materials Horizons

Pub Date : 2026-02-05 DOI: 10.1039/d5mh02129d

Hyejeong Yeon, Sohyeon Yu, Minhyeok Lee, Sangwoo Kim, Yongjin Park, Hye-Ryung Choi, Won Il Choi, Chang-Hun Huh, Yongmin Jeon, Chan-Su Park, Daekyung Sung, Kyung Cheol Choi

The development of therapies that dynamically respond to the wound microenvironment is essential to overcome the limitations of conventional monotherapies. We present a wearable patch that self-regulates reactive oxygen species (ROS) to accelerate wound healing. This flexible organic light-emitting diode (OLED) patch conforms to the wound, delivering narrow 630 nm peak light at an irradiance of 5 mW cm^-2 for photobiomodulation (PBM). The patch activates healing directly via PBM, and the consequently induced ROS serve as a therapeutic trigger. This ROS trigger stimulates ROS-responsive nanoparticles to release antioxidant drugs, which neutralize excess ROS. We confirmed a dose-dependent additive effect across 2-8 J cm^-2, with 6 J cm^-2 being the most effective. This combination therapy significantly accelerated wound closure and promoted superior tissue regeneration, including robust skin barrier reconstruction and mature vessel stabilization. This OLED patch introduces a next-generation phototherapy, transforming signals into therapeutic triggers for advanced combination treatments.

对伤口微环境做出动态反应的疗法的发展对于克服传统单一疗法的局限性至关重要。我们提出了一种可穿戴贴片，可以自我调节活性氧（ROS），以加速伤口愈合。这种柔性有机发光二极管（OLED）贴片符合伤口，在5 mW cm-2的辐照度下提供630 nm的窄峰值光，用于光生物调节（PBM）。贴片直接通过PBM激活愈合，因此诱导的ROS作为治疗触发器。这种ROS触发刺激ROS反应的纳米颗粒释放抗氧化药物，从而中和多余的ROS。我们证实了2- 8jcm -2之间的剂量依赖性加性效应，其中6jcm -2最有效。这种联合治疗显著加速伤口愈合和促进上层组织再生，包括强健的皮肤屏障重建和成熟的血管稳定。这种OLED贴片引入了下一代光疗，将信号转化为高级联合治疗的治疗触发。

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引用次数: 0

Natural Compound-Driven Nano-Self-Assembly for Multimechanistic Transdermal Antiobesity Therapy 天然化合物驱动的纳米自组装用于多机制透皮抗肥胖治疗

IF 17.1 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

ACS Nano

Pub Date : 2026-02-05 DOI: 10.1021/acsnano.5c20129

Lu Tang, Qiaqia Xiao, Siying Chen, Chuying Wang, Mickel Mikhael, Zheming Niu, Linghui Wang, Cong Fu, Yi Hou, Guangda Zhu, Hening Liu, Yue Yin, Tongtong Wang, Jing Shang, Wei Wang

Obesity is a complex metabolic disorder characterized by excessive fat accumulation and chronic, low-grade inflammation, contributing to a range of associated diseases. Conventional treatments are often limited by poor targeting, low efficacy, and undesirable side effects. Natural compounds with anti-inflammatory and metabolic regulatory properties have attracted considerable attention due to their safety and multitarget mechanisms. Herein, we propose an effective antiobesity strategy involving the construction of a carrier-free nanodrug (CG NPs) via the self-assembly of two natural compounds, curcumin (Cur) and glycyrrhetinic acid (GA), both of which exhibit multiple antiobesity effects. To achieve efficient and targeted delivery, CG NPs are incorporated into a dissolvable microneedle coated with black phosphorus nanosheets (CG@BP/MN), forming a biocompatible transdermal platform. When combined with mild photothermal therapy, CG@BP/MN enables transdermal drug delivery to modulate subcutaneous fat, efficiently promoting white adipose tissue browning, enhancing lipolysis, and modulating macrophage polarization. Cur and GA act synergistically to regulate lipid metabolism, attenuate inflammation, and improve insulin sensitivity. In a diet-induced obesity mouse model, this therapeutic plan significantly reduces body weight, elevates energy expenditure, and prevents weight regain following treatment cessation. Overall, this therapeutic platform represents a safe, effective, and clinically promising approach to the long-term management of obesity.

肥胖是一种复杂的代谢紊乱，其特征是过度脂肪积累和慢性低度炎症，导致一系列相关疾病。传统的治疗方法往往受到靶向性差、疗效低和不良副作用的限制。具有抗炎和代谢调节特性的天然化合物因其安全性和多靶点机制而备受关注。在此，我们提出了一种有效的抗肥胖策略，包括通过姜黄素（Cur）和甘草次酸（GA）两种天然化合物的自组装构建无载体纳米药物（CG NPs），这两种化合物都具有多种抗肥胖作用。为了实现高效和有针对性的递送，CG NPs被纳入涂有黑磷纳米片（CG@BP/MN）的可溶解微针中，形成生物相容性透皮平台。当与轻度光热疗法联合使用时，CG@BP/MN可经皮给药调节皮下脂肪，有效促进白色脂肪组织褐化，增强脂肪分解，调节巨噬细胞极化。Cur和GA协同作用，调节脂质代谢，减轻炎症，改善胰岛素敏感性。在饮食诱导的肥胖小鼠模型中，该治疗方案显著降低体重，提高能量消耗，并防止停止治疗后体重反弹。总的来说，这种治疗平台代表了一种安全、有效、临床有前景的长期肥胖治疗方法。

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引用次数: 0

Engineered Strategies for Enhancing mRNA Vaccine Stability in Delivery and Storage 提高mRNA疫苗递送和储存稳定性的工程策略

IF 6.7 3区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nanoscale

Pub Date : 2026-02-05 DOI: 10.1039/d5nr05189d

ELIF NAZ CERAV, Zhiying Yao, Bingbing Sun

Messenger RNA (mRNA) vaccines have transformed immunization through their ability for quick and customizable antigen production. However, their widespread use is still limited by challenges related to the natural instability of in vitro–transcribed mRNA and the limitations of current delivery systems. Modern perspectives on stability extend beyond simple resistance to degradation. They now consider factors that can be modified through RNA structure and nanoscale environmental interactions. These interactions, which promote efficient translation, also affect the durability of these complexes against physical and chemical stresses. During formulation and storage, variables such as excipients, buffers, and solid-state architecture are essential for maintaining molecular integrity throughout manufacturing, transportation, and long-term preservation. As a result, stability serves as a key link between molecular design and overall vaccine efficacy, transforming a major obstacle into an area for strategic innovation. This review highlights recent advances at both the molecular and carrier levels aimed at developing thermostable, efficient, and highly effective mRNA vaccines, with a focus on improvements in their stability, storability, and delivery.

信使RNA （mRNA）疫苗通过其快速和可定制的抗原生产能力改变了免疫。然而，它们的广泛使用仍然受到与体外转录mRNA的自然不稳定性和当前递送系统的局限性相关的挑战的限制。关于稳定性的现代观点已经超越了简单的抗退化性。他们现在考虑可以通过RNA结构和纳米级环境相互作用来修饰的因素。这些相互作用，促进有效的翻译，也影响这些配合物对物理和化学应力的耐久性。在配方和储存过程中，辅料、缓冲液和固态结构等变量对于在整个制造、运输和长期保存过程中保持分子完整性至关重要。因此，稳定性是分子设计和整体疫苗效力之间的关键联系，将一个主要障碍转变为战略创新领域。本文综述了分子和载体水平上的最新进展，旨在开发耐热、高效和高效的mRNA疫苗，重点关注其稳定性、可储存性和递送性的改进。

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引用次数: 0

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