Advanced Sustainable Systems
·
2026
·Vol. 10
·期 10
·e70671
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IF 5.6
Jinhua Su,Hui Li,Shusheng Pan,Guoqiang Zhang
Lanthanum poly(heptazine imide) (La-PHI) is a novel, highly crystalline PHI material. However, its visible-light absorption remains weak due to the limited contribution of La 3+ to the band structure of PHI. Considering that the ionic radius of Sn 2+ is comparable to that of La 3+ , Sn 2+ can stably occupy the identical sites within the PHI framework. Meanwhile, the 5p orbitals of Sn 2+ can effectively hybridize with the N 2p orbitals, thereby introducing intermediate energy levels. Experimental results demonstrate that Sn 2+ doping generates an intermediate level at approximately 2.30 eV within the forbidden band, effectively broadening the light absorption range. Through optimizing the Sn 2+ doping amount, the photocatalytic activity of the obtained sample under 420 < λ < 780 nm is 5.3 times that of the original La-PHI. This study indicates that Sn 2 + doping is an effective strategy for extending the light absorption range, and the introduction of intermediate levels provides new insights into the design of highly efficient PHI-based photocatalysts.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Minfang Deng,Yanmin Guo,Zexi Lin,Yizhe Yang,Ruihan Lin,Enguo Chen,Sheng Xu,Tailiang Guo,Yun Ye
ZnO nanoparticles enable photoresponsive ionic hydrogels with light memory • Light-memory hydrogel TENG records recent UV exposure history • Temporal UV exposure is reconstructed from evolving material states • WMPT-Mamba identifies five UV irradiance levels with 98.6% accuracy • Self-powered wearable patch enables real-time UV monitoring and risk warning Prolonged solar ultraviolet (UV) exposure poses a growing occupational health burden, particularly for outdoor workers, yet personal UV risk is inherently cumulative and difficult to capture using sensors that primarily report instantaneous light conditions. Photoresponsive triboelectric nanogenerators (Photo-TENGs) offer a self-powered route for wearable light sensing, but their material responses have largely been exploited to enhance electrical output during illumination, leaving post-illumination state evolution underutilized as a source of exposure-history information. Here, a light-memory hydrogel triboelectric sensor (LM-gel-TENG) is developed to retain recent UV exposure through time-dependent material-state evolution. A ZnO-integrated ionic hydrogel is designed to synergistically combine mechanical adaptability, ion transport, and photoinduced charge regulation, enabling electrically readable UV-responsive triboelectric signals and persistent electrical-state enhancement after illumination. An output voltage of 228 V and a maximum photoinduced voltage enhancement of 44.86% are achieved by the LM-gel-TENG. The evolving signals are reconstructed into dark-light-memory pulse triplets, and a Wavelet-Markov Pulse-Triplet Mamba framework is developed to distinguish five UV irradiance levels with 98.6% accuracy. A mobile platform further enables real-time signal acquisition and visualization, post-event classification of five predefined UV irradiance levels, digitally calculated cumulative-dose display, and exposure-risk indication, supporting personalized wearable UV monitoring. By decoding post-illumination material-state evolution as temporal exposure information, this work advances Photo-TENGs toward exposure-history-aware self-powered sensing and offers a pathway for more individualized UV exposure awareness and proactive protection in populations facing sustained outdoor work. A light-memory hydrogel triboelectric sensor converts UV-induced material-state evolution into decodable electrical signals, achieving 40.96% voltage enhancement and light-signal retention. Integrated with WMPT-Mamba recognition and a mobile app/LED warning platform, the intelligent patch enables real-time personalized UV exposure monitoring and risk warning. Download: Download high-res image (224KB) Download: Download full-size image
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ACS Catalysis
·
2026
·Vol. 16
·期 17
·16958-16971
·
IF 13.6
Xi Yuhan,Hu Xinge,Zhang Jinpan,Xu Yuqing,Feng Qianyue,Cao Liu,Ma Yueru,Li Hai,Yan Tianran,Li Chaoran,Zhang Liang,Feng Kai,He Le,An Xingda
Solar-driven chlorine and hydrogen co-evolution from seawater represents an energy-conservating and clean alternative to the conventional chlor-alkali industry. However, sustained and selective chlorine production remains extremely challenging due to competition from the thermodynamically less demanding water oxidation side reaction. In this work, we demonstrate a Ni/Ni 2 SiO 4 plasmonic matrix catalyst that enables a distinct energetic charge carrier filter effect for wavelength-controlled selective chlorine and hydrogen co-production. Based on the distinct energy band structure, the plasmonic-mediated energetic charge filter drives the extraction of higher-energy “hot” holes and lower-energy “cold” electrons, respectively, through lower- and higher-wavelength photons. This phenomenon, combined with hierarchical plasmon coupling and promoted carrier dynamics, collectively led to the cooperative facilitation of both the oxidative and reducing half reactions. In situ spectroscopic investigations point at preferentially promoted chloride adsorption and activation via a two-step, nonradical chlorine evolution pathway, leading to favorable Cl 2 and H 2 yield rates with near-unity Cl 2 selectivity in photocatalytic measurements with seawater. The plasmon-mediated energetic charge carrier filter mechanism opens intriguing pathways for preferential reaction engineering with effective product control.
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Journal of Materials Research and Technology-JMR&T
·
2026
·
IF 7.3
Jinlai Ping,Zhaolu Meng,Chuanqi Xiang,Xiaolin Shen,Zijian Zhang,Shuang Li
Stereolithography-based additive manufacturing provides feasible path for the preparation of high-purity SiC ceramics with complex configurations; however, the challenges in curing ability of the photosensitive slurry and the densification of printed body inhibit mechanical properties of the sintered ceramics. Here, a polymer-derived ceramic path was proposed for preparing high-purity SiC ceramics by digital light processing with polycarbosilane (PCS) as the SiC precursor. By constructing PCS@SiC core-shell structure in the starting ceramic powders, the curing ability of the photosensitive slurry was enhanced with the increase of PCS content. When sintered at 1100 °C, PCS pyrolyzed to generate amorphous SiC and β-SiC with fine grain sizes; then the yielded SiC grew to form SiC whisker, SiC nanofiber and SiC columnar grain with the increase of PCS content. As a result, the flexural strength increased from 46.1 MPa to 56.2 MPa for the specimen sintered at 1900 °C due to the strengthening and toughening effect provided by the above one-dimensional materials.
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Huanxuan Huang,Chenyu Zhang,Dong Zhang,Hanwen Jiang,Keqing Xu,Shiyang Liao,Meidong Lang
The escalating crisis of multidrug resistance and biofilm recalcitrance poses severe challenges to conventional wound management. Photocatalytic antimicrobial therapy (PCAT) represents a promising nonantibiotic alternative that triggers the generation of reactive oxygen species (ROS) under illumination, thereby achieving broad-spectrum sterilization. Herein, we engineered a metal-free, visible-light-driven photocatalyst based on cysteine-derived carbon dots (Cys-CDs) via a facile microwave-assisted approach. Through precise N, S-heteroatom doping, the Cys-CDs possess tailored bandgaps of 2.78 eV, conferring them with superior visible-light harvesting capability. Upon visible-light exposure, the photocatalytic generation of ROS drives potent antibacterial efficacy, achieving >95% bacterial eradication against Staphylococcus aureus at 31.25 μg/mL and Escherichia coli at 62.5 μg/mL. Importantly, the unique ROS-mediated antibacterial mechanism of Cys-CDs induces nonspecific oxidative damage to bacterial components, thereby fundamentally circumventing the evolution of resistance. Subsequently, Cys-CDs were covalently integrated into an alginate hydrogel matrix to construct a sustained-release platform (CCDs/SA). The resultant hydrogel retains robust photocatalytic antibacterial activity, demonstrating excellent performance in inhibiting biofilm formation and eradicating mature biofilms. Notably, the CCDs/SA hydrogel exerts selective bactericidal activity through differential enzymatic modulation, effectively eliminating bacteria while simultaneously promoting mammalian cell proliferation and migration. In an infected full-thickness skin wound model, the hydrogel combined with visible-light irradiation achieved near-complete bacterial eradication (99.07%) by day 7 and accelerated wound closure to 97.35% within 14 days, significantly outperforming commercial antibacterial dressings. Collectively, this work establishes a nonantibiotic therapeutic strategy for engineering visible-light-driven platforms, holding great promise for the clinical management of infected wounds.
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ACS Applied Polymer Materials
·
2026
·
IF 5.2
Linzhu Xu,Qingyun Zhao,Birong Zeng,Jie Song,Ziyun Chen,Yilin Su,Zhenlong Luo,Yiting Xu,Conghui Yuan,Lizong Dai
Developing intelligent polyurethane elastomers with balanced high mechanical strength and rapid self-healing capability remains a critical challenge in advanced functional materials. Herein, we designed a kind of polyurethane elastomer of PU-A1D2 by incorporating the azobenzene compound of 3-(4-(p-tolyldiazenyl)phenoxy)propane-1,2-diol (Azo-2) and dimethylglyoxime into the polyurethane matrix as components of the chain extender, where the dual functional groups synergistically contribute to self-healing performance. Dynamic oxime-urethane bonds construct a covalent adaptable network, enabling excellent self-healing in PU-A1D2 via reversible dissociation-association, while light-responsive Azo-2 units undergo photoisomerization, inducing topology transition and reversible soft–hard switching. The resultant PU-A1D2 exhibited a tensile strength of 13 MPa, toughness of 50 MJ m–3, and 95% self-healing efficiency after heat treatment at 80 °C for 12 h, achieving a favorable balance between mechanical robustness and self-healing efficiency. Moreover, PU-A1D2 achieved complete scratch self-healing within 2 h under the synergistic effect of ultraviolet (UV) irradiation and 90 °C. In addition, the 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide (EMIM·TFSI)-doped PU-A1D2-ET achieved almost 100% self-healing efficiency within merely 10 min under room-temperature UV irradiation. This work clarifies the regulatory mechanism of azobenzene on polyurethane self-healing and provides a promising design strategy for fabricating high-performance polymer elastomers integrated with outstanding mechanical properties and rapid light-controlled self-healing, which holds great potential in flexible electronics and smart wearable devices.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Kuibao Yu,Zhihan Lin,Tian Liu,Haolin Luo,Chao Zhong,Hao Liu,Fushan Li,Hailong Hu
A novel interfacial engineering inspired by the architecture of embankment protection is developed for CGL of tandem QLEDs. • The honeycomb oleophilic ZnO mesh effectively mitigates solvent-induced interfacial erosion and modulates charge generation. • The tandem QLEDs with modulated CGL achieve a high external quantum efficiency of 48.4% with a low turn-on voltage of 3.0 V. The efficiency and stability of tandem quantum dot light-emitting devices (QLEDs) are predominantly governed by the interfacial properties of the charge generation layer (CGL). As a promising CGL candidate, the ZnO/PEDOT:PSS heterostructure is plagued by severe interfacial erosion induced by non-orthogonal solvents during solution processing. Herein, we propose a novel interfacial engineering strategy inspired by the embankment protection principle, constructing a honeycomb-patterned oleophilic ZnO (o-ZnO) mesh as a protective barrier atop the alcohol-dispersible ZnO film. This o-ZnO mesh not only effectively mitigates solvent-induced interfacial erosion but also ensures efficient charge transport, resolving the long-standing trade-off between interfacial compatibility and charge generation. Systematic characterizations confirm that the optimized CGL enables precise modulation of charge generation efficiency via tunable geometric parameters of the o-ZnO mesh. As a result, the tandem QLED achieves a high external quantum efficiency of 48.4% with a low turn-on voltage of 3.0 V, and an operational T 95 lifetime (at a luminance of 1000 cd cm −2 ) extended to 11,445 h, which is 6 times longer than that of the control device. This work not only provides a versatile solution to the solvent compatibility issue in solution-processed tandem QLEDs but also establishes a new paradigm for interfacial engineering in optoelectronic devices.
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Materials Today Advances
·
2026
·
IF 8
Xiao Wang,Yanan Ren,Yuhao Yang,Hui Tu,Dandan Fan,Yuchuan Zhuang,Jing Li,Yanbo Dong,Andrey Tulupov,Ying Hu,Yong Zhang,Jianfeng Bao
The accelerating global crisis of multidrug-resistant infections and the physical intractability of dense bacterial biofilms demand therapeutic platforms that are both functionally active and externally controllable. Here we report the rational design and synthesis of a fuel-free, near-infrared (NIR) propelled Janus nanomotor, PCN-224@Au, that unites photothermal therapy (PTT) with sonodynamic therapy (SDT) in a single construct. Asymmetric deposition of gold onto a porphyrinic PCN-224 metal-organic framework (MOF) establishes the geometric anisotropy required for propulsion and a metal–MOF interface that promotes charge separation. Under low-power 808-nm irradiation, the Au cap converts light to heat and drives self-thermophoretic motion, yielding directed transport with ensemble speeds of ∼10 μm s −1 and super-diffusive MSD of ∼60 μm 2 at 4 s while producing a local temperature rise of 35 + °C within 600 s at 100 μg mL −1 . Ultrasound (US) activates ROS formation in PCN-224, and the Janus architecture simultaneously delivers NIR photothermal input to amplify the effect. Dual activation with NIR and US therefore delivers localized thermal stress (PTT) together with high ROS flux (SDT), producing broad-spectrum antibacterial effects against methicillin-resistant Staphylococcus aureus (MRSA) and Escherichia coli (E. coli) . Light-driven motility enhances deep biofilm penetration and nanomotor-bacteria contact, while US-activated ROS disrupt membranes and trigger cytoplasmic leakage, translating into rapid, depth-resolved sterilization with favorable hemocompatibility and cytocompatibility. By coupling controllable propulsion with sonocatalysis, this Janus nanomotor approach overcomes transport and resistance barriers and provides an effective, fuel-free platform for broad-spectrum antibacterial therapy.
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Advanced Science
·
2026
·
IF 14.1
Tingting Wu,Yajing Liu,Shuman Wang,Xiaoming Bai,Luyun Zhang,Yuwei Liu,Zhiwen Fu,Chen Shi
Mesenchymal stem cell (MSC)-based therapies hold great promise for tissue regeneration, yet precise spatiotemporal regulation of their bioactivity remains challenging. Here, we report a light-switchable MSC system (MSC-UCNPs) enabled by intracellular upconversion nanoparticles (UCNPs), which allowed remote control of exosome biogenesis and regenerative function. Upon 980 nm near-infrared irradiation, intracellular UCNPs emitted localized 365 nm ultraviolet light without compromising MSC viability. The generated UVA stimulus activated the ROS/HEXB/LAMP1 signaling cascade, suppressing lysosome–multivesicular body fusion and thereby markedly enhancing exosome production (increased to 2.7-fold). The MSC-derived exosomes exerted autocrine effects to promote MSC proliferation and osteogenic differentiation, while also facilitating osteoblast maturation via activating the Wnt/β-catenin pathway. To facilitate in vivo application, an injectable hydrogel composed of sodium alginate, calcium alginate, and hyaluronic acid was constructed through electrostatic interactions for the localized delivery of MSC-UCNPs. Positron emission tomography–computed tomography (PET-CT) imaging confirmed the in vivo light-switchable behavior of MSC-UCNPs, allowing on-demand enhancement of in situ exosome release. Benefiting from the synergistic regenerative effects of MSCs and their exosomes, this light-responsive MSC platform achieved robust cranial bone regeneration with a 3.2-fold greater bone volume fraction compared to the control group.
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LANGMUIR
·
2026
·
IF 4.4
Meifang Zhang,Yaohan Lu,Bing Li,Jia Yi,Bin Yuan,Oulu Yang,Xiaodong Lian,Guan Ren
Charred historical papers carry invaluable cultural heritages but are extremely fragile, making rescue research and rescue conservation urgent and important tasks. To clarify the light angle-dependent visibility mechanism of charred historical papers dated 603–655 AD unearthed from the Tangchaodun Ancient City Site in northwest China and develop effective rescue conservation strategies, we conduct comprehensive analyses including radiocarbon dating, FTIR, Raman spectroscopy, SEM observation, optical characterization, and reinforcement experiments. The Charred historical papers were made from bast fibers with kaolinite fillers, showing complete degradation of cellulose. Light angle-dependent visibility of characters originates from synergistic optical differences such as whiteness, reflectance, glossiness and distinct reflection modes between paper and character regions, including specular for paper substrates and scattering for character regions. Specifically, the enhanced scattering in the character regions is attributed to the rough ink layer coating the surface of paper fibers. A 1.0 wt % sodium carboxymethylcellulose (CMC-Na) solution effectively reinforces the fragile papers without altering their appearance or obscuring character information, outperforming common Japanese Tengujo papers. This study provides scientific insights into charred paper relics and a practical conservation method, herein having been successfully applied to over 3000 fragments, which holds broad significance for the study and conservation of charred cultural relics.
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Rui Wang,Yongpeng Huang,Lihua Lu,Sijia Zhou,Zhuoying Jiang,Yikai Yun,Sijie Jiang,Zhaoxia Bi,Mengyu Chen,Cheng Li
Phase segregation under light illumination in mixed-halide perovskite has attracted widespread attention. Meanwhile, the morphology of perovskite films plays an important role in the crystallinity, optoelectronic properties and device performance. Yet, the influence of morphology on phase segregation has not been systematically investigated. Here, we fabricate perovskite films with different surface morphologies and monitor the evolution of phase segregation under in situ illumination using multiphysical field luminescence imaging microscopy. Compared with flat films, the phase segregation in wrinkled films is significantly suppressed, which can be attributed to the release of the internal compressive stress. Furthermore, we propose a polaron-mediated phase segregation mechanism regulated by residual stress. Based on this model, we explain that perovskite films with different morphologies exhibit distinct phase segregation rates. These microscopic findings are critical for understanding the influence of strain on the phase segregation and guiding the future development of more stable wide-bandgap perovskite optoelectronic devices.
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ADVANCED MATERIALS
·
2026
·
IF 29.1
Lanxin Qin,Yiqi Luo,Zhe Sun,Atieh Feda,Esmaeil Sheibani,Siwei He,Xiang Zhang,Fang Wang,Bo Xu,Jiang Tang,Jiajun Luo
Vapor-deposited light-emitting diodes (LEDs) based on non-toxic copper-iodide nanoclusters (Cu NCs) hold immense potential for scalable solid-state lighting and displays. However, interface defects-induced device performance degradation remains a critical challenge for organic–inorganic nanoclusters. Here, we present an interfacial coordinate-bond passivation strategy employing a pyridine-functionalized self-assembled monolayer (SAM) material featuring tailored pyridine anchoring groups. The designed pyridine-functionalized SAM materials simultaneously passivate the Cu NCs emissive layer (EML) and optimize charge injections. Consequently, we demonstrate Cu NCs-based LEDs achieving a peak external quantum efficiency (EQE) of 22.5%, a maximum luminance of 41 432 cd∙m −2 , and an improved operating half-lifetime of 119 h at 1000 cd∙m −2 , which is among the best of reported vapor-deposited clusters-based LEDs. Moreover, we demonstrate active-matrix displays by integrating Cu NCs-based LEDs onto drive circuits. This work highlights the critical role of molecularly engineered SAMs in unlocking the high-performance cluster-based LEDs.
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