JOURNAL OF LUMINESCENCE
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2026
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IF 3.8
Shiwen Chu,Han Gao,Shiyu Zhu,Changle Luo,Zhuangzhuang Ma,Mochen Jia,Xu Chen,Jibin Zhang,Linyuan Lian,Ying Liu,Dongwen Yang,Yanbing Han,Zhifeng Shi
Multimodal optical anti-counterfeiting plays a vital role in modern commodity circulation. However, most current multimodal anti-counterfeiting materials rely on complex multi-component compounds and costly rare-earth ion doping, which limits their commercial applications. Therefore, achieving multimodal anti-counterfeiting within simple and low-cost compound systems holds promising practical prospects. This work developed luminescent materials with multimodal emission and optical storage capabilities via Mn 2+ single doping and Li-flux modification of an inexpensive and readily available CaO host. Calcium oxide is a common industrial product that can be obtained through simple calcination, laying the foundation for practical commercial applications. The Mn 2+ singly-doped sample enables information writing via ultraviolet light and dual-mode (thermal/optical) readout, a property not shared by the Li-flux modified counterpart. Furthermore, based on the flux effect, Li-flux treatment not only enhances the green emission of Mn 2+ but also introduces deeper traps, extending storage duration and enabling high-temperature readout. Leveraging the differences in optical response and trap distribution between the two materials, a multi-level optical anti-counterfeiting demonstration with dynamic color and temperature-dependent characteristics was constructed. This work provides a new material strategy for developing low-cost, high-security optical anti-counterfeiting and information encryption technologies.
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Qihang Tian,Zhiqiang Cai,Yi Li,Chong Chen,Haitao Xu,Chengzhang Zhu
Hierarchical x MCMnO x was fabricated via facile in-situ silane confinement strategy. • Si-O-Mn are formed by the interaction of amorphous siloxane network and MOF precursor. • Mn 4+ + Ce 3+ ⇌Mn 3+ + Ce 4+ cycle forms a dynamic equilibrium to produce oxygen vacancies. • 3MCMnO x shown superior activity for low-temperature NH 3 -SCR with H 2 O/SO 2 resistance. Developing high-efficiency catalysts for the selective catalytic reduction of NO x with NH 3 (NH 3 -SCR) is of great significance for achieving ultra-low NO x emissions. Herein, hierarchical x MCMnO x hollow nanorod hybrids were fabricated via a facile in-situ silane confinement strategy using Ce-doped Mn-BTC modified with MTMS (methyltrimethoxysilane) as the sacrificial template for NH 3 -SCR reaction. Systematic studies demonstrated that the tight chemical interaction between the amorphous siloxane network and the MOF precursor facilitated the highly dispersed distribution of the doped Ce species around the Mn active sites, forming abundant Si-O-Mn interface covalent bonds and strong metal-metal interactions (Mn 4 + + Ce 3+ ⇌ Mn 3+ + Ce 4+ ). Benefiting from the stronger NH₃ adsorption capacity, abundant reactive oxygen species, and surface-enriched hydrophobic methyl groups, the optimized 3MCMnO x promoted the Eley-Rideal (E-R) reaction pathway via strong Si-O-Mn interfacial coupling, achieving a 100% NO conversion rate within the temperature range of 150–300 °C at a GHSV of 36000 h −1 and robust H 2 O/SO 2 tolerance. Furthermore, the universality of this way was verified in analogous Co-based and Cu-based systems. This work opens a new avenue for the design of efficient and durable MOF-derived denitration catalysts for non-electric industries. Download: Download high-res image (250KB) Download: Download full-size image
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Wenlu Zhang,Yaning Fu,Zhen Feng,Mengyao Huang,Youcai Lu,Qingchao Liu
Mn doping creates symmetry-broken Co δ+ -O-Ru δ− heterointerfaces. • Polarized Ru and Co sites enable catalytic shunting of ORR and OER. • Reversible metal-oxygen bond adaptation accelerates Li 2 O 2 conversion. • The catalyst delivers an ultralow discharge-charge overpotential of 0.37 V. • Li-O 2 cells reach 34,738 mAh g −1 and cycle stably for 208 cycles. Aprotic Li-O 2 batteries require efficient bifunctional oxygen electrocatalysis, yet ORR and OER impose conflicting demands on oxygen-intermediate adsorption and product desorption. Herein, we construct a symmetry-broken Mn-doped Co 3 O 4 /RuO 2 heterointerface on carbon cloth to couple catalytic shunting with self-adaptive interfacial bonding. Mn incorporation reinforces Co-O-Ru coupling and generates asymmetric Co δ⁺ -O-Ru δ⁻ units, as verified by XPS, XAS, and theoretical calculations. The resulting interfacial polarization spatially divides the oxygen-redox pathway: electron-enriched Ru sites preferentially promote O₂ adsorption/activation for ORR, whereas electron-deficient Co sites facilitate Li₂O₂ decomposition/desorption for OER. Meanwhile, in situ Raman spectroscopy and theoretical bond-length analysis reveal reversible metal-oxygen bond elongation/contraction during discharge/charge, enabling temporal adaptation of interfacial bonding to evolving intermediates. This spatial shunting and temporal self-adaptation synergistically mitigate the adsorption-desorption conflict, improve Li 2 O 2 reversibility, and maintain efficient charge-transfer pathways. Consequently, the Mn-Co 3 O 4 /RuO 2 cathode achieves a low overpotential of 0.37 V, a high discharge capacity of 34,781 mAh g −1 , and stable cycling for 208 cycles. This study provides a shunt-adaptive heterointerface strategy for multistep oxygen electrocatalysis. Download: Download high-res image (275KB) Download: Download full-size image
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JOURNAL OF CATALYSIS
·
2026
·
IF 6
Shaozhi Liu,Honggang Zhang,Zeyan Wang,Hefeng Cheng,Peng Wang,Zhaoke Zheng,Ying Dai,Baibiao Huang,Yuanyuan Liu
Catalytic ozonation offers a promising approach for removing perfluorinated compounds, yet developing catalysts with both high activity and stability remains a great challenge due to severe metal ions leaching. Herein, we design a Mn single atom decorated γ-AlOOH catalyst (denoted as Mn x /γ-AlOOH), which displays efficient catalytic ozonation towards perfluorooctanoic acid (PFOA) removal. Under optimal conditions, Mn 2.2 /γ-AlOOH achieves a defluorination ratio of 99.39% after 15 h of catalytic ozonation process, with a distinctive low leaching percentage (0.52% for Mn and 0.21% for Al, compared to 10.44% for Mn leaching from MnO 2 and 0.95% for Al leaching from γ-AlOOH). Comprehensive analysis indicates that the introduction of Mn single atom optimizes the electronic structure and provides an additional indirect electron transfer pathway, which not only facilitates O 3 activation, but also reduces Mn ion leaching by decreasing electron loss, and simultaneously enhances the activity and stability of the catalyst. This work provides new insights into enhancing the activity and stability of catalysts during the catalytic ozonation process via the rational design of atomically dispersed sites.
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JOURNAL OF NANOBIOTECHNOLOGY
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2026
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IF 15
Deng Xu,Xie Xixiang,Zhou Xing,Jiang Lanfang,Zhu Tao,Su Rixiang,Chen Chunmei,Chen Wan,Chen Chunxia
The therapeutic efficacy of ischemic stroke (IS) treatment is severely limited by insufficient accumulation of therapeutic agents within ischemic lesions and persistent secondary injury after ischemia–reperfusion. Herein, we report a cRGD-functionalized exosome-based nanoplatform that enhances ischemic lesion-associated accumulation and antioxidative neuroprotection for the treatment of IS. Neural stem cell-derived exosomes were functionalized with cyclic RGD peptides (cRGD) and subsequently loaded with Mn₃O₄ nanoparticles to construct a hybrid nanosystem (cRGD-Exo@Mn₃O₄). The engineered exosomes preserve intrinsic brain tropism, while cRGD modification promotes preferential accumulation in ischemic regions, potentially through interaction with α v β 3 integrin that is upregulated in ischemic lesions. The incorporated Mn₃O₄ nanoparticles confer robust reactive oxygen species (ROS) scavenging capability, thereby mitigating oxidative stress in ischemic microenvironments. In vitro and in vivo studies demonstrate that cRGD-Exo@Mn₃O₄ exhibits enhanced accumulation in ischemic regions compared with non-modified counterparts. The nanosystem effectively attenuates oxidative stress and neuroinflammation, leading to reduced infarct volume, alleviation of cerebral edema, and improved neurological function in MCAO/R mice. Mechanistically, transcriptomic analysis suggests that the therapeutic effects are associated with modulation of inflammation-and cell death-related pathways, including suppression of the RIPK1/RIPK3/MLKL signaling cascade. Collectively, this study presents a rationally designed exosome-based nanoplatform integrating ischemic lesion-associated accumulation with ROS-scavenging capability. Graphical abstract
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INORGANIC CHEMISTRY
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2025
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IF 4.7
Jinhua Rao,Wenhui Qin,Julian Lava,Junsheng Chen,Xin Mao,Meishan Wang,Ruiling Zhang
Low-dimensional metal halide perovskites have emerged as a promising class of high-performance phosphors for solid-state lighting applications, owing to their outstanding optical properties, structural diversity, and low-cost solution processability. Here, we report a Mn2+-doped two-dimensional (2D) cadmium chloride perovskite, Mn2+:(EDA)CdCl4 (EDA: ethylenediamine), that achieves highly efficient orange light emission with a near-unity photoluminescence quantum yield (PLQY). The host (EDA)CdCl4 can emit an unusual ultraviolet emission at 320 nm with a PLQY of 51%, associated with Cd vacancy defects. Upon incorporation of Mn ions into the host lattice, an intense broad orange emission emerges at 610 nm with a PLQY of 97% at 265 nm excitation, originating from the spin-forbidden 4T1(G) → 6A1(S) transition of isolated Mn ions. Theoretical calculations and spectroscopic characterizations reveal that efficient electron transfer from the host to Mn contributes to the highly efficient orange emission, giving the doped samples great potential in WLED applications.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
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IF 5.6
Guanyu Zhu,Feifeng Huang,Yuqing Yan,Shilong Zhao,Huanping Wang,Degang Deng,Shiqing Xu
Developing anti-counterfeiting materials that are easy to identify and difficult to imitate, as well as temperature-sensitive materials with high sensitivity and a wide detection range, remains a significant challenge—particularly for luminescent materials that integrate both functionalities. Herein, a series of CaSb 2 O 6 : Bi, Mn phosphors were synthesized by high-temperature solid-phase method, integrating multi-color dynamic anti-counterfeiting capability with multi-mode optical temperature sensing. By doping Bi 3+ ions, the blue light emission of Bi 3+ ions completely overlaps with the self-activated emission of the CaSb 2 O 6 host, greatly enhancing the blue light emission of the host. In addition, when Mn 2+ ions are added, due to the incomplete oxidation of Mn 2+ during the preparation process, both Mn 2+ and Mn 4+ ions coexist within the host. Under UV excitation, the CaSb 2 O 6 : Bi, Mn phosphors exhibit multi-color emission of cyan-green, blue, purple, and magenta, accompanied by persistent green emission originating from Mn 2+ ions, offering a potential approach for dynamic anti-counterfeiting applications. The temperature sensitivity characteristics of the phosphors were investigated based on the fluorescence intensity ratio technique, and a maximum relative sensitivity of 1.56 % K −1 was obtained at 383 K. Taking advantage of these material properties, an integrated dynamic anti-counterfeiting and encryption system was engineered, and a fiber-optic temperature sensing platform was established to monitor the real-time temperature of an electric hand warmer.
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Nanomaterials
·
2025
·Vol. 15
·期 12
·893
·
IF 4.3
Danyang Li,Can Liu,Shu Zhao,Fujie Li,Hao Li,Chao Wang,Xiu Song Zhao
Na-layered Li-containing Mn-based cathodes (NaxLiyMn1-yO2, NLMOs) with additional Na+storage ability resulting from the anionic redox reaction (ARR) hold great promise for sodium-ion batteries (NIBs). However, practical applications of NLMOs encounter challenges, such as migration of transition metal Mn, loss of lattice oxygen, and voltage decay during cycling. Here, we show that Cu plays an important role in enhancing the ARR via the reductive coupling mechanism (RCM). Results shows that a Cu2+/Fe3+modified NLMO sample delivers a Na+storage capacity as high as 174 mA h g−1at 0.2C, higher than that of a Zn2+/Fe3+modified NLMO sample (130 mA h g−1) and NLMO (154 mA h g−1). Both in situ and ex situ characterization results indicate that the obvious improvement in the electrochemical performance of the Cu2+/Fe3+modified NLMO is due to the additional overlaps between the Cu 3d and O 2p orbitals, which is beneficial for the RCM. As a result, the ARR is enhanced so as to increase the Na+storage capacity.
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ACS Applied Materials & Interfaces
·
2025
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IF 8.2
Jiawei Yuan,Jingjing Du,Zixuan Wang,Lihui Ren,Shangwen Zhang,Muhan Chen,Jun Yang,Shu Wei,Jiayun Xu,Hongcheng Sun,Junqiu Liu,Shuangjiang Yu
The development of advanced therapeutic stents to increase anticancer efficiency and bolster antitumor immunity remains a considerable challenge. In this work, a therapeutic gel scaffold made from Mn2+-cross-linked sodium alginate (Mn(II)-SA-Gel), which contains a stimulator of interferon genes (STING) agonist (ADU-S100) and an immune checkpoint inhibitor (aCTLA-4), was developed as a drug delivery system for cancer therapy. The gel scaffold preserved its structural integrity and facilitated prolonged drug release via ion coordination exchange with Ca2+ present in bodily fluids. In addition to serving as a cross-linking agent during gel formation, Mn2+ also facilitates the activation of the STING signaling pathway by ADU-S100, induces dendritic cell maturation, and promotes the polarization of M1 macrophages. Moreover, Mn2+ promotes the generation of highly cytotoxic hydroxyl free radicals in the presence of H2O2, and in combination with the immune checkpoint inhibitor aCTLA-4, enhances the T-cell immune response to enhance their powerful tumor cell-killing effect. The findings indicated that Mn(II)-SA-Gel could serve as a promising platform to synergistically stimulate the STING pathway, thereby improving cancer immunotherapy.
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DYES AND PIGMENTS
·
2026
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IF 3.9
Yating Xu,Tingting Lei,Chen Wang,Shaojing Zhao,Cheng Li,Minhuan Lan
Thiram, a widely used dithiocarbamate pesticide, can threaten ecological systems and human health through residual contamination. Here, manganese and nitrogen co-doped carbon dots (Mn, N-CDs) were harnessed as a photo-driven oxidase-like nanozyme to build a visual colorimetric assay for thiram. Under light irradiation, Mn, N-CDs can generate singlet oxygen ( 1 O 2 ) and superoxide (O 2 − ·) and maintain good photozyme activity over a broad pH range. The Mn, N-CDs/3,3′,5,5′-tetramethylbenzidine (TMB) mixture produces a blue oxidized product under illumination; after introducing thiram, the oxidation of TMB is suppressed because thiram consumes 1 O 2 and O 2 − ·, thereby producing a thiram concentration-dependent color-fading signal. Notably, extending the irradiation time enhances the analytical sensitivity by allowing the chromogenic reaction to approach a more stable readout. The proposed method can be coupled with smartphone-based RGB quantification to enable portable digital readout under natural light. In addition, satisfactory recoveries and repeatability were obtained in diverse real water samples. The proposed approach thus offers a feasible strategy for developing broad-pH-applicable, facile, and on-site colorimetric sensing for pesticide monitoring.
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International Journal of Pharmaceutics-X
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2026
·
IF 7.9
Xiang Wang,Hengrui Li,Le Wang,Yihan Ma,Miao Qin,Ruonan Sun,Jing Hu
Tumor hypoxia is a major barrier to oxygen-dependent photodynamic therapy (PDT), markedly limiting its therapeutic efficacy in hepatocellular carcinoma (HCC). Herein, a self‑oxygenating and redox-amplifying metal-organic framework (MOF) nanoplatform is constructed by co-loading sorafenib (Sor) and plumbagin (PLB) into a surface galactose functionalized Mn-porphyrinic PCN-224(Mn) (PM) framework to afford SorPLB@Gal-PM for asialoglycoprotein receptor (ASGPR)-mediated HCC targeting. The Mn-porphyrin centers endow SorPLB@Gal-PM with catalase-like activity, enabling in situ decomposition of endogenous H 2 O 2 to generate O 2 and thereby sustaining 1 O 2 -based PDT under irradiation. Meanwhile, Sor/PLB co-delivery, together with PLB-mediated GPX4 suppression, promotes oxidative stress amplification. In hypoxic liver cancer stem cell-like C5WN1 cells, SorPLB@Gal-PM elicits markedly enhanced intracellular ROS upon irradiation, showing approximately 3.4-fold and 2.9-fold higher DCFH-DA signals than SorPLB@Gal-PCN-224 and PM, respectively, accompanied by downregulation of hypoxia-inducible factor-1α (HIF-1α) and glutathione peroxidase 4 (GPX4). In a C5WN1 tumor-bearing nude mouse model, SorPLB@Gal-PM combined with irradiation achieves the most potent tumor suppression with a tumor inhibition rate of 83.70% ± 4.12%. Collectively, SorPLB@Gal-PM provides a hypoxia-adaptive nanoplatform integrating Mn-assisted self‑oxygenation and redox-amplified chemo-PDT for effective HCC therapy.
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Journal of Materials Chemistry A
·
2026
·
IF 9.2
Jianing Xu,Yangyang Wang,Qianqian Chen,H. Zheng
Single-atom catalysts (SACs) offer ideal active sites for advanced oxidation processes, yet their practical applications are hindered by synthetic complexity, isolated centers, and limited redox and charge-transfer dynamics. Here, we report a scalable synthesis of a Fe–Mn dual-atom catalyst (Fe–Mn/N–C) featuring a symmetric Fe–Mn–N6 coordination structure. This unique configuration establishes a sustainable bimetallic redox cycle that enables efficient activation of peracetic acid (PAA) for pollutant degradation. The catalyst achieves nearly complete removal of sulfamethoxazole (99.9%) with an apparent rate constant of 0.3226 min–1—7.7 and 8.5 times higher than those of Fe/N–C and Mn/N–C counterparts, respectively. Density functional theory calculations reveal that Mn–N coordination promotes electronic delocalization and fine-tunes the electronic structure of adjacent Fe centers, leading to distinct PAA adsorption geometries on Mn and Fe sites that favor the selective formation of hydroxyl radicals (•OH) and singlet oxygen (1O2) species. The optimized Mn d-band center further lowers the energy barrier for 1O2 generation. Moreover, the Fe3+/Fe2+ and Mn4+/Mn3+ redox cycles are coupled through electron transfer between Fe and Mn centers, ensuring self-regeneration of active sites and sustained catalytic stability. The Fe–Mn/N–C catalyst exhibits outstanding activity across a wide pH range, strong tolerance to competing inorganic ions, excellent recyclability, and broad substrate applicability. Collectively, this work establishes a durable bimetallic redox-coupling strategy that leverages electronic structure modulation to realize synergistic oxidation and provides insights for the rational design of robust Fenton-like catalysts for complex environments.
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