SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2026
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IF 4.8
Mengjiao Pang,Yanjie Wang,Zengcheng Du,Qiqing Chen,Wenhao Liu,Miaoduo Deng,Yuanyuan Xie,Mingfang Zhu
In this study, a water-soluble perovskite quantum dot (PQDs) based on CsPbI 3 "on-off-on" fluorescent probe was successfully constructed. The probe exhibits red fluorescence emission at 660 nm under 465 nm excitation, and the response mechanism of Cu 2+ -induced fluorescence quenching (OFF) and D-penicillamine (D-PA) triggered fluorescence recovery (ON) is realized. In addition, the dual target detection platform of both copper ions (Cu 2+ ) and D-PA was established. Quantitative analysis showed that the detection linearity range was 0.5–15 μM (LOD = 0.21 μM) for Cu 2+ and 0.4–60 μM (LOD = 16.7 nM) for D-PA. Meanwhile, D-PA can be semi-quantitatively measured based on the change in solution color. The fluorescent probe provides a fast response time, high sensitivity, and convenient solution for real-time detection of Cu 2+ and D-PA. And it was applied in the determination of D-PA in serum samples with satisfactory results. It is particularly noteworthy that the synthesized perovskite quantum dots exhibit excellent stability in the aqueous environment, which provides a new strategy for expanding the application of perovskite materials in the field of biomedical analysis.
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Hanhan Zhao,Dan Guo,Bochong Wang,Qijun Sun,Congpu Mu,Jianyong Xiang,Tianyu Xue,Kun Zhai,Anmin Nie,Fusheng Wen
With the escalating prevalence of electromagnetic radiation, there is an urgent demand for smart shielding materials capable of adapting to complex and dynamic environments. Herein, we report a flexible triple-layered composite film fabricated with bacterial cellulose as the substrate, copper nanowires (CuNWs) as the conductive shielding layer, and polylactic acid as the shape-memory polymer. The composite film exhibits excellent mechanical properties, featuring a tensile strength of 38.8 MPa and a fracture strain of 5.6%. By adjusting the CuNWs content, the electromagnetic interference (EMI) shielding effectiveness (SE) in the X-band can be precisely regulated, achieving a maximum SE of 45.1 dB. Furthermore, the integration of PLA endows the film with light-induced shape memory behavior via photothermal effect, enabling reversible and non-contact tuning of SE between 5 dB and 40 dB. To enhance long-term durability, graphene nanosheets were introduced as an anti-oxidation layer. Notably, the SE of the GNP-modified film only decreases by 1.8 dB over a 15-day period, in stark contrast to a 7.0 dB loss observed in the uncoated counterpart. These results demonstrate the successful development of a mechanically robust, oxidant-resistant, and intelligently tunable EMI shielding film, which offers a promising platform for adaptive electromagnetic management in advanced electronic systems.
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ADVANCED FUNCTIONAL MATERIALS
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2026
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IF 19.9
Jiejun Ren,Boheng Dong,Yu Liao,Longyun Liu,Churen Zhang,Xiaopeng Zhou,Huiping Liu,Fan Liu,Liangjun Chen,Yuhua Wang
Perovskite nanocrystals (NCs) are highly attractive for high-definition displays. And yet, the weakly bound conventional surface ligands on perovskite NCs leads to the poor processibility, impeding their practical application. Herein, bis(2-methacryloxyethyl)phosphate (BMP) was employed as a functional ligand to prepare BMP-modified CsPbBr 3 (BMP-CPB) NCs with exceptional optical properties and photo-crosslinking capability. The phosphate group strongly coordinates with the surface Pb atoms, while the methacrylate groups undergo photo-crosslinking reaction. Upon ultraviolet light irradiation, free radicals initiate addition reactions across the C═C bonds of BMP ligands, ultimately leading to the formation of a 3D cross-linked polymer network. Accordingly, BMP-CPB NCs show high processability compatible with photopatterning, screen printing, and 3D printing. The superior processibility and outstanding optical properties endow them with great potential in optoelectronic devices, the BMP-CPB-based light-emitting diodes (LEDs) achieved a maximum luminance of 51181.04 cd/m 2 and an external quantum efficiency (EQE) of 18.6%. The BMP-CsPbX 3 -based white LED emits bright white light, achieving a high luminous efficiency of 58.6 lm/W and a wide color gamut covering 124% of National Television System Committee (NTSC) standard. Taking WLED array as backlight source, the constructed liquid-crystal display (LCD) prototype device demonstrates the significant potential of BMP-CPB NCs in high-quality display technologies.
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Small
·
2026
·
IF 11.8
Yueling Lai,Meiling Liu,Qianqian Song,Hao Chen,Kanghui Zheng,Xin Yang,Zhongshan Li,Ruilin Wang,Yufeng Zhou
Colloidal semiconductor magic-sized clusters (MSCs) with precise atomic compositions and unique optical properties, which are observed as intermediate species in the synthesis of quantum dots (QDs) have been widely explored. To deeply understand transformation pathways of MSCs and control their composition/stability are essential to form large-scale high quality QDs with mono-dispersity and enhanced optical properties. However, the transformation pathway of ionic compound semiconductor MSCs with weak bond binding energy have rarely been investigated. In this work, taking ionic CsPbBr 3 MSCs as a representative model system, we here report both thermally-induced direct (Pathway 3) and precursor compounds (PCs) assisted (Pathway 1) transformation between binary PbBr 2 MSCs (absorption centered at ∼390 nm) and ternary CsPbBr 3 MSCs (absorption centered at ∼415 nm) at sub-ambient temperature, which have been first illustrated in ionic perovskite MSCs systems. Moreover, when increasing reaction temperature to 80°C, MSC-415 dissociate into monomers/fragments (Pathway 2) to form larger sized nanocrystals (NCs). In addition, the compositions and structures of MSCs have been experimentally and theoretically studied. This work contributes to fundamental understandings of transformation mechanism of perovskite MSCs/NCs systems, which is beneficial to synthesize size- and composition-controlled colloidal semiconductor QDs and NCs with tailored optical properties.
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JOURNAL OF POWER SOURCES
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2026
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IF 8.4
Zixuan Deng,Shuang Zhang,Fudong Li,Yue Zhu,Changsheng Shan,Yuanmeng Zhao
Rationally designing electrocatalyst/electrolyte interfaces with excellent active hydrogen supply capability is crucial for the hydrogen evolution reaction (HER), a core step in alkaline anion exchange membrane water electrolysis (AEMWE). Herein, phosphorus (P)-surface-coordinated PtFeCoCuMo quinary alloys are synthesized via a two-step wet-chemical method. P-induced d-p orbital hybridization enables the synergistic regulation of two key factors: it optimizes the hydrogen adsorption free energy (ΔG H∗ ) and water dissociation barrier (thermodynamic modulation), while tailoring the potential of zero charge (PZC) to accelerate proton transport (kinetic modulation). The optimized P 16 -PtFeCoCuMo catalyst exhibits outstanding alkaline HER activity, with a turnover frequency (TOF) 5-fold and 3-fold higher than those of commercial Pt/C and pristine PtFeCoCuMo alloy, respectively. This work overcomes thermodynamic and kinetic limitations simultaneously through heteroatom doping, providing a promising strategy for the design of high-performance alkaline HER catalysts.
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Materials Today Energy
·
2026
·
IF 8.1
Yipeng Nie,Longquan Deng,Zipei Cui,Zhao Jiang,Wenchao Sheng
Coupling hydrogen evolution reaction (HER) with glycerol oxidation reaction (GOR) in a hybrid electrolyzer represents a highly promising approach for green hydrogen production and glycerol upgrading. However, the limited activity and stability of existing GOR catalysts restrict the energy efficiency of the coupled system. In this study, Pd/C and Pd 4 Ag x /C catalysts were synthesized to investigate the impact of Ag on the activity and stability of Pd-based catalysts for GOR. The optimized Pd 4 Ag 8 /C demonstrated a specific activity of 17.4 ± 0.1 mA cm −2 Pd and a mass activity of 13.2 ± 0.3 A mg −1 Pd , both being more than 10 times higher than those of Pd/C. Combined results of ultra-performance liquid chromatography and density functional theory calculations revealed that the introduction of Ag promotes C−C cleavage in glyceric acid on Pd sites, facilitating electron transfer in GOR and thereby enhancing the GOR activity. The GOR coupled HER hybrid electrolyzer using Pd 4 Ag 8 /C as the GOR catalyst achieved a significant reduction of ∼1.07 V in cell voltage compared to conventional water electrolysis system at a current density of 10 mA cm −2 with a favorable operational stability, and realized the production of high-value-added chemicals, demonstrating the promising potential in both hydrogen production and upgrade of glycerol.
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Laser & Photonics Reviews
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2026
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IF 9.7
Xiaobing Tang,Chengxi Zhang,Kai Zhang,Shuo Weng,Xuyan Liu,Qiang Li,Yijie Xia,Xuan Huang,Xueqing Xu,Fuqian Yang
Ultrasmall perovskite CsPbBr 3 quantum dots (QDs) with blue emission are promising materials for light-emitting diodes (LEDs). However, achieving room-temperature synthesis of blue-emitting CsPbBr 3 QDs with long-term stability remains a major challenge, hampering their real-world applications. Herein, we report a novel room-temperature strategy for synthesizing highly stable, blue-emitting CsPbBr 3 QDs, achieved with cross-linked network structures—marking a significant advancement over conventional approaches. Polymer (dimethyl siloxane dimethyl vinyl terminated (PDMS)) cross-linked by curing agent (dimethyl methyl hydrogen siloxane) offers networks that control the size of CsPbBr 3 QDs around 5 nm. The networks inhibit the fall-off of ligands from the QD surface, which restrains the agglomeration of QDs and mitigates thermal quenching of light emission. The CsPbBr 3 QDs with a photoluminescence quantum yield (PLQY) of 93% remain monodispersed in solution over 30 days. The QD-based films retain 95% of their initial PLQY after thermal treatment at 120°C. Blue-emitting CsPbBr 3 LEDs with an emission of 472 nm and a full-width at half-maximum (FWHM) of 23 nm exhibit a peak luminance of 4096 cd m −2 and an excellent operational half-lifetime ( T 50 ) over 38 h at 100 cd cm −2 , the longest-lifespan perovskite blue-quantum-dot LEDs reported to date.
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Journal of Materials Chemistry C
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2026
·
IF 5.1
Jing Li,Xue Jiang,Lingfeng Qiu,Tianze Wen,Jinju Zheng,Jialong Zhao,Bingsuo Zou,Zhentao Du
All-inorganic perovskites hold great potential for applications in photodetectors due to their high absorption coefficient and excellent charge transport properties. However, they still face challenges such as high defect densities and insufficient stability. In this work, we successfully synthesized high-purity, high-crystallinity CsPbBr3 nanobelts via a hot-injection method with the introduction of the short-chain ligand octylamine. The as-prepared CsPbBr3 nanobelts can remain stable in air for more than 8 weeks. The photodetector constructed based on CsPbBr3 nanobelts exhibits excellent performance, with a responsivity, detectivity, and external quantum efficiency of 100.72 A W−1, 6.01 × 1013 Jones, and 3.34 × 104%, respectively, which are comparable to the best one-dimensional (1D) CsPbBr3 photodetectors reported to date. This study provides insights and guidance for the preparation of high-quality 1D CsPbBr3 nanomaterials and the development of high-performance ultraviolet devices.
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Materials Today Bio
·
2026
·
IF 11
Qing Hu,Yingfei Wang,Wei Chen,Nan Feng,Keju Tao,Jie Wu,Ying Liu,Fan Zhou,Qing Hao,Daoping Xiang,Junjie Chi,Hong Liu
Nanomotors are appealing drug carriers with deep tissue penetration to overcome biological barriers. Though high motion efficiency has been achieved with NIR-II light driven nanomotors, insufficient directional control and material biocompatibility limit their broad application. Herein, leveraging commercially available liposomal doxorubicin (DOX) as a platform, we develop a magnetic-steering NIR-II light thermophoretic liposomal nanomotor (LipNM) by asymmetrically incorporating magnetic photothermal Fe 3 O 4 @Cu 9 S 8 nanoparticles into the lipid bilayer, firstly realizing directional nanoscale self-thermophoresis. The embedded Fe 3 O 4 @Cu 9 S 8 nanoparticles respond to a brief magnet stimulation for spatiotemporal steering and NIR-II irradiation with local temperature increase for self-thermophoresis of LipNMs, which further facilitate tumor tissue targeting and deep tumor penetration, respectively. The direction-controllable thermophoretic LipNMs demonstrate good biocompatibility and increase the delivery efficiency of DOX by 186% compared to passive liposomal doxorubicin. Owing to the targeted accumulation and deep tissue penetration at the tumor site, the therapeutic efficiency of LipNMs for breast cancer in vivo is as high as 94.9%, providing a promising strategy for cancer therapy.
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Science China-Materials
·
2026
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IF 7.7
Li Mingxing,Fan Pingping,You Wenwu,Liu Shuanglai,Yan Shijia,Zhang Huimin,Zhang Huafang,Pan Gencai,Mao Yanli
Recent years have witnessed growing research interest in two distinctive optical phenomena, photochromism (PhCh) and persistent luminescence (PersL). However, effectively integrating both functionalities into a single host material remains a major challenge, primarily due to the complex role defects play in modulating the material’s optical properties. To address this fundamental issue, this study employs structurally simple CsX (X = Cl, Br) nanocrystals (NCs) as a model system to systematically elucidate the relationship between defects and optical behaviors. We propose for the first time that CsX NCs can accommodate two distinct types of chlorine vacancy defects upon X-ray irradiation—one intrinsic from synthesis and one induced by X-rays—enabling the integration of PhCh and PersL in a single matrix. Specifically, under X-ray irradiation at 20–70 kV, the material exhibits reversible blue coloration, which stems from recoverable chlorine vacancies that can be rapidly eliminated by visible light within 30 s. This PhCh behavior demonstrates excellent cycling stability, with a color difference (ΔRL 1 ) of 56.9% and a recovery rate (ΔRL 2 ) of 98.1%. Furthermore, the introduction of Br − effectively deepens the energy level of intrinsic chlorine vacancies from the range of 0.47 to 0.71 eV up to 0.83 eV, resulting in intense PersL that lasts for more than 30 min. Such dual-mode PhCh–PersL characteristics endow these NCs with considerable potential for practical applications, particularly in the field of X-ray colorimetric imaging and dynamic anti-counterfeiting.
The alternative text for this image may have been generated using AI.
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ACS Sustainable Chemistry & Engineering
·
2026
·Vol. 14
·期 35
·15763-15775
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IF 7.6
Fan Qianqian,Li Yalin,Liu Mi,Zhang Wenbo,Ma Jianzhong
The lower absorption rate and attention-grabbing pollution let traditional chrome tanning agents carry numerous potential risks in terms of sustainable modification of collagen in the leather industry. In this study, a zirconium-based halide perovskite (Cs 2 ZrCl 6 )/MOF (UiO-66) nanocomposite was designed through the in situ growth method and applied in chrome-free tanning to modify leather collagen. This composite system achieved significant synergistic effects, especially in enhancing the stability and permeation of the agent during the tanning process. It was found that the Cs 2 ZrCl 6 /UiO-66 nanocomposite allowed for the improved thermal stability and physical-mechanical properties of the leather compared with pristine Cs 2 ZrCl 6 . It noted that composite modification could preserve collagen’s characteristic triple-helical architecture, thus exhibiting excellent biodegradability. This study provides an efficient and eco-friendly chromium-free tanning agent for the leather industry and offers new insights into collagen modification.
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ACS Applied Materials & Interfaces
·
2026
·Vol. 18
·期 34
·46312-46321
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IF 7.8
Wang Guangxia,Sun Xiuwei,Geng Ruyang,Xu Yong,Hu Tao,Qiu Zhenping
The commercialization of direct alcohol fuel cells (DAFCs) is severely hindered by sluggish anodic alcohol oxidation reaction kinetics and the high susceptibility of catalysts to deactivation. Traditional Pd/Pt-based catalysts suffer from difficult C−C bond cleavage and severe CO poisoning. To address these issues, we synthesize a pentametallic PdPtNiBiCo alloy consisting of interconnected nanoparticles via a facile one-pot oil-phase method, aiming to maximize electrochemically accessible surface sites and trigger robust multimetallic synergy. This architecture delivers an exceptional alkaline ethanol oxidation activity of 16.64 A mg −1 Pd+Pt , 12 and 19 times higher than those of commercial Pd/C and Pt/C, respectively. Furthermore, the catalyst exhibits robust antipoisoning durability over 4000 cycles and broad activity for methanol and ethylene glycol oxidation. Density functional theory calculations reveal that multimetallic synergy effectively modulates the d-band center of the active sites. Density functional theory calculations reveal that multimetallic synergy tunes the electronic structure of the active sites, optimizes the adsorption of key intermediates, and lowers the thermodynamic energy requirements for C−C bond cleavage and CO oxidation, thereby facilitating both the C1 and C2 pathways of ethanol oxidation. This work addresses the key limitation of traditional Pd/Pt-based catalysts and provides an effective strategy for designing high-performance universal DAFC anodes.
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