MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
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2026
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IF 5.2
Wenzhi Zhou,Mingkun Wu,Yuelong Liang,Zhenghai Yang,Jindong Yang,Mengkui Tian
Constructing heterojunctions is an effective strategy to enhance charge carrier separation and photocatalytic performance. In this study, a Bi 4 O 5 Br 2 /InVO 4 S-scheme heterojunction composite was prepared by a solvothermal method. The physicochemical properties were thoroughly investigated using various characterization techniques. Visible-light degradation experiments of ciprofloxacin (CIP) showed that the optimal sample, 5% Bi 4 O 5 Br 2 /InVO 4 (BI-5), exhibited the highest degradation activity (92.77%) along with excellent cycling stability. The effects of different environmental factors on the degradation performance were also systematically studied. The enhanced activity is attributed to the synergistic effect of the S-scheme heterojunction and increased oxygen vacancies. The S-scheme charge transfer, driven by the IEF at the heterointerface, enables spatial separation of photogenerated electrons and holes while preserving strong redox potentials, with reductive electrons accumulating in Bi 4 O 5 Br 2 and oxidative holes remaining in InVO 4 . Meanwhile, the introduction of InVO 4 creates abundant oxygen vacancies. These vacancies act as electron capture centers to suppress bulk recombination, introduce in-gap states that facilitate interfacial charge transfer, and provide additional active sites for surface reactions. Consequently, the S-scheme junction and oxygen vacancies jointly promote the separation, migration, and surface utilization of charge carriers, leading to significantly improved photocatalytic performance.
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Science China-Technological Sciences
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2026
·Vol. 69
·期 4
·1420202
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IF 5.1
Iqbal Mujahid,Yasin Aqeela,Guan Shaokang,Guo Jiacheng,Hou Yachen,Li Jingan,Tang Junnan
Ischemic stroke remains a leading global cause of mortality and disability, creating an urgent need for improved treatments. Biodegradable magnesium (Mg) alloy stents represent a promising advancement for cerebrovascular applications due to their inherent biocompatibility, mechanical suitability, and unique neuroprotective properties conferred by Mg ions. However, the clinical translation of Mg alloy stents, particularly for sensitive cerebral vasculature, is hindered by two major bottlenecks: uncontrolled rapid degradation leading to premature structural failure and delayed endothelialization contributing to restenosis and thrombosis. Addressing the critical issue of biological functionality, this study develops a novel sulfonated hyaluronic acid-tyrosine microsphere (S-HA-Tyr@microsphere) coating on ZE21B Mg alloy. Monodisperse S-HA-Tyr microspheres were precisely fabricated using microfluidics and stabilized via a visible-light catalyzed tris(2,2-bipyridyl)-dichlororuthenium(II)/Sodium persulfate (Ru/SPS) system, forming a robust dityrosine bond network. This multifunctional coating integrates corrosion resistance (primarily achieved through an established MgF 2 interlayer), strong anchoring (PDA layer), and enhanced bioactivity (S-HA-Tyr@microspheres). The S-HA-Tyr@microsphere coating significantly improved hemocompatibility, reducing hemolysis to 0.35% ( p < 0.01) and platelet adhesion by 83.7% ( p < 0.001). Crucially, it promoted endothelial cells (ECs) migration and proliferation ( p < 0.01) while inhibiting smooth muscle cells (SMCs) overgrowth ( p < 0.05) and inducing macrophage M2 polarization ( p < 0.01), demonstrating excellent cell-specific regulation. In vivo evaluation confirmed the efficacy: abdominal aortic implantation in rats for 28 d revealed a superior diameter retention for the coated implants compared to bare alloy ( p < 0.05) and showed continuous endothelium with reduced neointimal formation ( p < 0.01). This innovative coating strategy facilitates both degradation control and accelerated endothelialization, overcoming key biological barriers for the clinical application of biodegradable Mg alloy cerebrovascular stents.
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ACS Catalysis
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2026
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IF 13.6
Huating Jiang,Zhiruo Guo,Xiaohui Liu,Yong Guo,Yanqin Wang
Lignin represents the most abundant source of aromatic compounds in nature, and its depolymerization holds great promise for yielding valuable aromatic products. Herein, we demonstrate the photocatalytic oxidative cleavage of β–1 bonds via the the Mars–van Krevelen (MvK) mechanism, and catalytic activity is achieved over lattice oxygen (OL)-rich WO3. A conversion of 99% is reached after reaction for 2 h under visible light, with the selectivity to benzaldehyde and benzoic acid reached 94%, surpassing the most reported catalytic systems. This photocatalytic performance stems from precise modulation of OL and oxygen vacancies (OV) sites in WO3, applicable to diverse β–1 model compounds and industrial lignin. In this MvK mechanism, the substrate adsorbs onto the OL sites, followed by activating the Cβ−H and inserting the lattice oxygen into the C–H bond to form a benzoin intermediate. Then, the desorbed benzoin undergoes a a Norrish Type I-like reaction, breaking the C–C bonds to form benzaldehyde. Concurrently, the adsorbed O2 at OV sites is reduced by photogenerated electrons, replenishing the depleted lattice oxygen and therefore manifesting stability (10 cycles). This in situ removal–regeneration strategy provides an approach for efficient lignin C−C bond cleavage and establishes the rational design principles for interfacial photocatalysts toward lignin valorization.
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INORGANIC CHEMISTRY
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2026
·
IF 4.6
Xiaoman Li,Yiming Wang,Xue Yang,Chaojin Jiang,Lulu Kong,Honghan Fei,Xueling Song
Organolead halide coordination polymers have emerged as promising photocatalysts owing to their attractive photophysical properties and structural tunability. However, organolead bromides typically exhibit limited photocatalytic performance due to their generally narrow light absorption range and inefficient carrier mobility. To overcome these issues, we designed and synthesized a robust layered organolead bromide coordination polymer templated by the squaric acid ligand featuring short carbon chains and broad near-UV absorption. It achieves visible light absorption and high charge separation efficiency, in contrast to the two reported lead bromide analogues with large interlayer spacing. Upon exposure to AM 1.5G simulated sunlight, the hybrid bromoplumbate exhibits enhanced photocatalytic activity for CO2–CO conversion, with high product selectivity and cycling stability. Moreover, the photocatalytic CO2 reduction performance is further promoted by in situ incorporation of trace Ag nanocrystals as reductive cocatalysts for suppressing carrier recombination, prolonging charge lifetime, and reducing free energy for the *COOH key intermediate. This work underscores the critical role of coordination chemistry in modulating the relationship between the structure and property of crystalline materials.
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TRENDS IN BIOTECHNOLOGY
·
2026
·
IF 16.6
Shichao Li,Ting Gao,Yinhao Wang,Qingjing He,Huiling Ma,Hui Ye,Yuqing Shen,Yukai Wang,Yujue Wang,Xiaoqing Li,Shaocong Fang,Qidi Chen,Qi Liu,Gangyu Sun,Huhu Xin,Jianzhuang Xue,Sicun Liu,Min Zhu,Wenqing Xu,Zhizhi Wang,Jiawei Shao,Mingqi Xie
In this study, we describe a rationally designed light-inducible RNA-releasing protein (LIRP) capable of inhibiting mRNA translation in the dark while permitting gene expression upon exposure to blue or ambient light. This LIRP-dependent gene switch is compatible with various delivery routes of gene- and cell-based therapy, such as subcutaneous implantation of microencapsulated light-sensitive cells or expression in various light-accessible body sites using single adeno-associated virus (AAV) vectors. To exemplify a gene therapy approach that directly harnesses ambient light as a natural illumination source to induce therapeutic action, we show how intradermal delivery of AAV2 vectors carrying a LIRP-regulated gene switch controlling murine thymic stromal lymphopoietin expression was effective in enabling light-dependent prevention and treatment of diet-induced obesity. To describe another therapeutic scenario, we engineered AAV2 vectors for LIRP-dependent expression of Vascular endothelial growth factor (VEGF) inhibitors for the treatment of retinal neovascular diseases. Upon intravitreal delivery into mice suffering from wet macular degeneration, VEGF inhibitors were constantly produced when animals were exposed to daylight, but therapeutic actions could be flexibly interrupted either by exposure to dark environments or by administration of a selective blue light filter at any point in time. When compared to conventional treatment strategies based on constitutive VEGF inhibition over the course of 3 months, we show that a regulated gene therapy approach through LIRP-dependent optogenetics was advantageous in maintaining a normal retina thickness. This work not only provides a valuable addition to the optogenetic toolbox but also offers a perspective to translate light-dependent gene switches toward therapeutic usage.
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JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2026
·
IF 4.4
Ye Cai,Jingjing Zhang,Yilei Zhang,Jinghua Sun,Mengting Gao,Pengqi Zhu
The Ru/NiAl-LDH catalyst was designed for the selective hydrogenation of phenolic compounds under visible light irradiation and mild conditions (55 °C, atmospheric H₂), and it achieved 99% conversion of phenol with 99% selectivity to cyclohexanol. XPS and DFT calculations confirmed that Ni 2+ in the NiAl-LDH support donates electrons to the Ru center, creating an electron-rich Ru site that enhances H 2 activation. In situ DRIFT studies verified that visible-light irradiation promotes the heterolytic dissociation and adsorption of H 2 on Ru active sites. Additionally, surface hydroxyl groups on the NiAl-LDH facilitate phenol adsorption and concentration near active sites. The catalyst demonstrated broad applicability to substituted phenolic compounds and excellent recyclability over multiple cycles. The synergistic effect between the electron-rich Ru sites and the hydroxyl groups on the NiAl-LDH surface ensures highly efficient photocatalytic hydrogenation of phenol to cyclohexanol.
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CERAMICS INTERNATIONAL
·
2026
·
IF 6
Xiaozheng Lu,Jungui Zhang,Xinxin Cao,Junbin Lu,Jingde Zhang,Guifang Han,Jianhui Jiang
The high UV absorption of SiC and its large refractive index difference with photosensitive resin hinder fabrication via photopolymerization additive manufacturing. In this study, SiC powders were oxidized to form a SiC@SiO 2 core-shell structure, and two types of photoinitiators were combined to enhance the curing behavior of SiC slurries. Moreover, introducing polysiloxane into the resin further improved the curing ability and solid content. For fine SiC powders, slurries with up to 70 wt% solid content were successfully fabricated, achieving a curing thickness of 63 μm at 8 s exposure. Printed green bodies were pyrolyzed at 1100 °C, and SiC nanowires were in-situ formed. The resulting SiC@SiO 2 /SiOC ceramics exhibited a flexural strength of 157.8 MPa and an open porosity of 5.1%, among the highest reported values. The proposed methodology paves the way for the cost-effective production of high-performance SiC-based and other advanced non-oxide high-temperature ceramic components with high light absorption.
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INORGANIC CHEMISTRY COMMUNICATIONS
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2026
·
IF 5.9
Ping Tan,Xuechun Jiang,Liye Liang,Yubo Zhang
Amino-density regulation was used to tune the electronic structure of UiO-67. • Diamino ligands induced electron redistribution between Zr nodes and linkers. • UiO-67-2NH 2 showed improved charge separation and interfacial transfer. • NO oxidation was enhanced while NO 2 formation remained at a low level. • Surface NO x intermediates were further converted into nitrate-related species. Functional group engineering of metal-organic frameworks provides a feasible route to tune their electronic structures, yet the specific role of amino ligands in regulating photocatalytic NO oxidation over Zr-based MOFs remains insufficiently clarified. Herein, UiO-67 derivatives with different amino densities were constructed through ligand engineering to investigate the relationship between ligand-induced electronic redistribution and visible-light-driven NO removal. Compared with pristine UiO-67, amino-functionalized UiO-67 exhibited enhanced visible-light absorption, improved charge separation, and reduced interfacial charge-transfer resistance. XPS and band-structure analyses suggest that the introduction of amino groups induces electron redistribution from Zr-oxo nodes toward ligand-related states, resulting in increased electron density near the valence band edge and more favorable photocarrier behavior. Among the prepared samples, UiO-67-2NH 2 showed the highest NO removal efficiency and maintained a relatively low NO 2 release during photocatalytic oxidation. ESR results confirmed the generation of •O 2 − and •OH under visible-light irradiation, while in-situ DRIFTS revealed the formation and evolution of NO + , NO 2 − , and nitrate-related intermediates. These results indicate that photogenerated carriers and reactive oxygen species jointly participate in the stepwise oxidation of NO toward more stable nitrate species. This work provides experimental evidence that amino ligand engineering can remotely modulate the electronic structure of UiO-67 and offers a useful strategy for improving the activity and selectivity of MOF-based photocatalysts for NO removal. Download: Download high-res image (177KB) Download: Download full-size image
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JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2026
·
IF 16.8
Mei-Ling Yang,Hui-Zhen Li,Yu-Xiang Wang,Yu-Hang Zhang,Feng-Nian Zhang,Yan-Zhao Zhang,Kuang Zhang,Guo-Xiang Zhou,Zhi-Hua Yang,De-Chang Jia,Yu Zhou
Through magnetic-field-assisted orientation printing, precise control of silver microplatelet orientation is achieved, resulting in a 23.3 μm improvement in linewidth precision and a 129.5% increase in curing depth. • Light-field finite element simulations reveal that oriented silver microplatelets suppress lateral light scattering while enhancing forward propagation, resolving the trade-off between resolution and curing depth in photocured metal pastes. • Despite the SPIONs-induced porous structure, the oriented silver microplatelets maintain good electrical performance, validated by a conformal antenna with measured results matching simulations, demonstrating their suitability for electronic circuit fabrication. The rapid miniaturization and increasing complexity of electronic components necessitate advanced manufacturing techniques capable of producing high-resolution conductive structures. Photocured printing technology, known for its high efficiency and exceptional resolution, holds great promise for fabricating cutting-edge electronics. However, the intrinsic constraints of the light-matter interactions make it challenging to achieve high-quality electrical circuits. Here, we report a magnetic-field-assisted orientation printing strategy that allows precise control of the orientation of silver microplatelets. This oriented alignment serves as the key to achieving programmable control of light penetration, which in turn improves printing quality. Compared with randomly oriented structures, the A90-oriented pastes exhibit a 23.3 μm enhancement in linewidth precision and a 129.5% increase in curing depth, facilitating the fabrication of circuits with simultaneously high resolution and thickness. Light-field simulations reveal that filler orientation directs incident light propagation, suppressing lateral scattering and promoting depth penetration. Furthermore, the electrical performance of the oriented silver microplatelets was systematically evaluated, and a conformal antenna fabricated on a silicon oxide substrate demonstrates good agreement between experimental measurements and simulated trends. This work demonstrates that magnetic-field-assisted orientation of anisotropic fillers provides an effective solution to the trade-off between printing resolution and curing depth in photocured metal pastes, enabling high-fidelity fabrication of functional electronic devices. Download: Download high-res image (219KB) Download: Download full-size image
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INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Ruo-Yu Zhang,Ni Dan,Xiao-Ning Gao,Hong-Ru Fu,Yu-Ming Guo,Lu-Fang Ma
Organic–inorganic metal halides (OIMHs) have attracted great attention for white light emission and also exhibited structural transformation-induced luminescence switching for encryption. However, it is still challenging to explore Sb-based halides for single-component white light-emitting diodes (WLEDs) and to show fast phase transitions for anticounterfeiting. Herein, through unveiling the full potential of organic components, three Sb-based halide hybrids (TPP-HBtrz)SbCl5 ([TPP-Btrz]Cl = [(1H-Benzotriazol-1-yl)methyl]triphenylphosphonium chloride), (TPP-Btrz)2Sb2Cl8, and (TPP-HBtrz)SbBr5 were rapidly prepared. (TPP-HBtrz)SbCl5 exhibits white light emission benefiting from the combination of organic cation and self-trapped exciton (STE) emission of [SbCl5]2–. The WLED shows white light emission with CIE coordinates of (0.32, 0.34), a correlated color temperature (CCT) of 6130 K, and a color-rendering index (CRI) of 86. Moreover, the fast structural transformations among them are achieved when stimulated by ethanol or HCl solutions, leading to a multilevel encryption.
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ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Xin-Yuan Gao,Xin-Ye Wu,Wei-Jia Wang,Jin-Zhe Xu,Wei-Zhi Liu,Shuai-Hao Xu,Zhi-Yun Peng,Dong-Ying Zhou,Liang-Sheng Liao
Metal halide perovskites exhibit great promise for applications in solid-state lighting and flat-panel display technologies. Despite significant progress, the current strategies for achieving high-performance perovskite light-emitting diodes (PeLEDs) are largely confined to additive engineering and upper interface modifications, with little attention paid to the buried interface, which plays a crucial role in perovskite crystal growth and charge transport. Here, we demonstrate a novel buried interface modification strategy by substituting polyethylenimine ethoxylated (PEIE) with phosphorylethanolamine (PEA). PEA functions as a bridging molecule between ZnO and perovskite, with its phosphate group anchoring on ZnO and its amino group serving as the nucleation site for perovskite as well as passivating perovskite defects. Furthermore, PEA also passivates the surface defects of ZnO and modulates its energy levels, thereby enhancing electron injection. The resultant PeLEDs exhibit a peak EQE of up to 22.3% with reduced efficiency roll-off and prolonged half-lifetime, which is superior to that of conventional PeLEDs at a peak wavelength of 798 nm.
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ACS Nano
·
2025
·
IF 16
Xiguo Zhang,Lin Ma,Shihu Ding,Nuo Meng,Wei Wang
Proton-coupled electron transfer (PCET) has emerged as a promising strategy for boosting hydrogen peroxide (H2O2) production through the two-electron oxygen reduction reaction (ORR). To achieve efficient H2O2 production, a specific C═N–NH–C═O structure was engineered on CQDs through Schiff-base addition reaction, creating an ideal catalytic microenvironment within the molecule via the integration of a proton donor and oxygen adsorption site. Benefiting from that, the obtained benzohydrazide-modified CQDs (BD-CQDs) exhibited a H2O2 production efficiency of 1562 μmol g–1 h–1 even without an external oxygen supply and electron donor, nearly three times that of the pristine CQDs. Mechanism investigation verified that oxygen adsorption shifted from a side-on type to an end-on type after modification, and the O═O bond was stretched on the C═O adjacent to −NH–, improving H2O2 selectivity to 92.5%. Identification of active sites revealed that −NH– provided sustainable proton flux for PCET, while the C═N bridge boosted the charge separation and transfer. Owing to the spatial proximity within the integrated catalytic microenvironment, the proton transfer energy barrier was significantly decreased, thermodynamically favoring H2O2 production. BD-CQDs retained an efficiency of over 88% after five successive cycles or in an ionic environment, highlighting their practical application potential in photocatalytic energy conversion.
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