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Versatile and programmable dual-mode logic gold nanoflares for intracellular correlated DNA repair enzymes imaging

Biosensors and Bioelectronics 2025年 282卷

作者： Li, Liannishang Huang, Lei Li, Mingxi He, Shaoying Xu, Huo Lu, Chunhua Xing, Chao Fujian Key Laboratory of Functional Marine Sensing Materials Center for Advanced Marine Materials and Smart Sensors College of Materials and Chemical Engineering Minjiang University Fuzhou350108 China MOE Key Laboratory for Analytical Science of Food Safety and Biology Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety College of Chemistry Fuzhou University Fuzhou350116 China

In situ monitoring of correlated DNA repair enzyme activities in living cells is crucial for clinical and biomedical research. Here, we introduce a versatile, programmable dual-mode logic gold nanoflares strategy for OR/AND gate logic imaging the activity of apurinic/apyrimidinic endonuclease 1 (APE1) and flap endonuclease 1 (FEN1) within cells. The logic gold nanoflares were designed via conjugating enzyme-activatable sites modified branched double-stranded DNA structures to gold nanoparticles. These meticulously engineered nanoflares specifically respond to APE1 and FEN1 in living cells through logic biocomputing, emitting a fluorescent signal that allows for the sensitive monitor of APE1 and FEN1 activities. In vitro experiments demonstrate that the nanoflares are highly biocompatible and can make effectively and sensitively judgments on the two enzyme targets across various cancer cell lines. This OR/AND dual-mode logic gold nanoflare strategy offers a straightforward tool for the comprehensive analysis of multiple DNA repair enzymes, presenting promising applications in disease diagnosis, drug efficacy evaluation, and programmable therapeutics. © 2025 Elsevier B.V.

关键词： Gold nanoparticles

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MOFs-based porous liquids for CO2 capture and utilization

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Green Energy and Environment 2025年

作者： Wang, Xun Liu, Yuxi Dai, Hongxing Wei, Zhen Xie, Shaohua Deng, Jiguang Beijing Key Laboratory for Green Catalysis and Separation Key Laboratory of Beijing on Regional Air Pollution Control Key Laboratory of Advanced Functional Materials Education Ministry of China College of Materials Science and Engineering Beijing University of Technology Beijing100124 China Department of Chemical and Environmental Engineering University of California RiversideCA92521 United States

Due to the greenhouse effect caused by carbon dioxide (CO2) emission, much attention has been paid for the removal of CO2. Porous liquids (PLs), as new type of liquid materials, have obvious advantages in mass and heat transfer, which are widely used in gas adsorption and separation. Metal–organic frameworks (MOFs) with the merit like large surface area, inherent porous structure and adjustable topology have been considered as one of the best candidates for PLs construction. This review presents the state-of-the-art status on the fabrication strategy of MOFs-based PLs and their CO2 absorption and utilization performance, and the positive effects of porosity and functional modification on the absorption-desorption property, selectivity of target product, and regeneration ability are well summarized. Finally, the challenges and prospects for MOFs-based PLs in the optimization of preparation, the coupling of multiple removal techniques, the in situ characterization methods, the regeneration and cycle stability, the environmental impact as well as expansion of application are proposed. © 2025 Institute of Process Engineering, Chinese Academy of sciences

关键词： Carbon capture and utilization

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Room-temperature field-tunable radiofrequency rectification in epitaxial SrIrO3 films

arXiv

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arXiv 2025年

作者： Zhou, Liang Du, Zongzheng Wang, Jinhua H. Chen, Pingbo Ye, Bicong Feng, Tao Yang, Jiahao Xiao, Zehao H. Yang, Meng Li, Junxue X. Zhang, Wenqing Lu, Hai-Zhou He, Hongtao Department of Physics Southern University of Science and Technology Shenzhen518055 China Shenzhen Institute for Quantum Science and Engineering Southern University of Science and Technology Shenzhen518055 China Shenzhen Key Laboratory of Quantum Science and Engineering Shenzhen518055 China International Quantum Academy Shenzhen518048 China Department of Materials Science and Engineering Southern University of Science and Technology Shenzhen518055 China Shenzhen Key Laboratory for Advanced Quantum Functional Materials and Devices Southern University of Science and Technology Shenzhen518055 China Guangdong Provincial Key Laboratory of Advanced Thermoelectric Materials and Device Physics Southern University of Science and Technology Shenzhen518055 China

Although significant advancements have been made in wireless technologies and portable devices, it remains a challenge for high-frequency and nanowatt-level radiofrequency rectification. In this work, we report a pronounced radiofrequency rectification up to 37 GHz in nominally centrosymmetric SrIrO3 epitaxial films, with the minimum detectable power as low as ~300 nanowatts. Strikingly, the SrIrO3 rectifier is highly field-tunable and exhibits a strong in-plane field anisotropy, thus showing a unique advantage in broad-band radiofrequency rectification. The rectification effect can persist up to at least 360 K and shows a sensitive temperature dependence including a sign inversion. By a systematic study of the nonlinear transport properties of SrIrO3, it’s further revealed that the radiofrequency rectification originates from the nonlinear Hall effect with the dominant contribution from field-induced Berry curvature dipole. Our work demonstrates the superior performance of the field-tunable SrIrO3 rectifiers, unleashing the great application potential of centrosymmetric materials in harvesting and detecting ambient electromagnetic energy. © 2025, CC BY.

关键词： Electromagnetic waves

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Broadened and enhanced blue emission of interstitial Eu2+ in α-cristobalite via Al3+ codoping for high color rendering white LEDs

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Ceramics International 2025年

作者： Xia, Zhiwei Wang, Yuhan Yang, Rujun Xu, Mengdi Lin, Cunjian Li, Zhongyuan Lv, Ying Chi, Xiaopeng You, Shihai Research Institute of Frontier Science Southwest Jiaotong University Chengdu610031 China Zijin School of Geology and Mining Fuzhou University Fuzhou350108 China Nanchang Key Laboratory of Photoelectric Conversion and Energy Storage Materials College of Science Nanchang Institute of Technology Nanchang330099 China College of Materials Xiamen University Xiamen361005 China Key Laboratory of Functional Molecular Solids Ministry of Education Anhui Normal University Wuhu241000 China of Advanced Science and Technology Japan Advanced Institute of Science and Technology Nomi923-1292 Japan

The interstitial site engineering that purposely creates interstitial luminescent centers in suitable hosts has become an intriguing strategy in designing novel inorganic phosphors. However, effectively tuning the photoluminescence of interstitial activators remains tough challenging at this stage. Here, we demonstrate the effective modulation of interstitial luminescence in inorganic phosphor. In detail, the blue emission band (λem = 446 nm) of interstitial Eu2+ doped α-cristobalite (SiO2:Eu2+) is largely enhanced and broadened via a partial, aliovalent substitution of Si4+ by Al3+. After introducing Al3+ ions into SiO2 lattice, the full width at half maximum of the blue emission band increase from 59 to 76 nm with a triple growth in quantum efficiency (10.82% → 35.56%). Moreover, the thermal stability improves significantly with a high emission retention of 60% at 325 °C (SiO2:0.06Al3+,0.005Eu2+), far higher than that of the parent SiO2:0.005Eu2+ (30%). Encapsulating blue-emitting SiO2:Al3+,Eu2+ along with two commercial green and red phosphors on an ultraviolet LED chip (λem = 375 nm), a white LED device with high color rendering index (Ra > 90) was successful fabricated, showing the great potential of this phosphor for achieving high-quality white LED lighting. This study not only provides a promising bule emitter but also sheds light on modulating interstitial luminescence properties in inorganic phosphors. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Phosphors

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Boosting anionic-cationic redox chemistry in anion-rich CuSe2 cathode toward high-energy magnesium batteries

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Energy Storage materials 2025年 79卷

作者： Du, Changliang Zhu, Youqi Yang, Lifen Jiang, Rong Jin, Mingwei Zhang, Qianwei He, Siru Song, Tinglu Ma, Xilan Cao, Chuanbao Zou, Meishuai Research Center of Materials Science Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications Beijing Institute of Technology Beijing100081 China Guangdong Provincial Key Laboratory of Efficient Catalysis and Energy Conversion Beijing Institute of Technology Zhuhai519088 China Experimental Center of Advanced Materials School of Materials Science & Engineering Beijing Institute of Technology Beijing100081 China

Electrochemical Mg-Cu displacement is recognized as the prominent capacity-contribution reaction in copper-based chalcogenide cathodes. However, such one-sided mechanism experiences low discharge voltage plateau and thus restricts the exploitation of high-energy magnesium batteries. Herein, a synergetic cationic-anionic redox chemistry mechanism is revealed in anion-rich copper selenide (CuSe2) cathode for high-energy magnesium batteries. Ex-situ spectroscopic characterization and DFT calculations demonstrate the mechanism with high-voltage Se-Cl anionic redox chemistry and low-voltage cationic Mg-Cu replacement reaction. A series of copper selenides with controllable anion content are fabricated by phase engineering strategy via regulating the Se source concentration during selenization. The anion-rich CuSe2 cathode shows both superior anionic and cationic redox reactions for Mg2+ storage kinetics with considerable capacity of 440.6 mAh g–1 and high energy density of 439.4 Wh kg–1. Based on the outstanding reaction kinetics, the CuSe2 cathode also delivers remarkable rate capability with 169 mAh g–1 at 2.0 A g–1 and cycling life for 1500 cycles. Theoretical investigation suggests that the anion-rich phase can show the most effective adsorption of Mg2+ and Cl– and the highest conductivity. This work unveils a brand-new anionic-cationic redox chemistry mechanism and provides a high-efficiency strategy for fabricating anion-rich copper selenides toward high-energy rechargeable magnesium batteries. © 2025 Elsevier B.V.

关键词： Substitution reactions

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Surface-enhanced light harvesting over MOF-derived porous ZnO films for highly efficient QDs-based photoelectrochemical hydrogen generation

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Green Energy and Environment 2025年

作者： Tao, Yi Tang, Zikun Xie, Linjie Xu, Xiaolan Zhao, Wei Xu, Wenxuan Bao, Dequan Zhong, Yihong Gao, Zhenqiu Wen, Zhen Wang, Kanghong Zhang, Hao Sun, Xuhui Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow University Jiangsu Suzhou215123 China Department of Applied Mathematics School of Science Xi'an Jiaotong-Liverpool University Suzhou215123 China Suzhou Institute for Advanced Research University of Science and Technology of China Jiangsu Suzhou215123 China

Rational design of porous metal oxide films that serve as not only the scaffolds for light absorbers but also the transfer layer of photogenerated charges is essential for fabricating highly efficient photoanodes for photoelectrochemical (PEC) hydrogen generation. In this work, we report a facile one-step pyrolysis method which can convert Zn-based MOF to porous ZnO (m-ZnO) with rough surface and abundant oxygen vacancies (Ov). When incorporating core–shell quantum dots (QDs) as the light absorbers, the obtained photoanodes (m-ZnO@QDs) achieved outstanding PEC performance for hydrogen generation, exhibiting 1.6 times and 5.8 times higher saturated photocurrent density (Jsc) than those of conventional TiO2@QDs and ZnO@QDs photoanodes, respectively. Comprehensive optical and electrochemical measurements reveal that the rough surface of m-ZnO can significantly improve the light-harvesting capacity of corresponding photoanodes through surface-enhanced light scattering. Moreover, the Ov in m-ZnO facilitate the interfacial transfer of photogenerated electrons. Our findings indicate that the MOFs are valuable precursors for the preparation of porous films, offering a promising route to develop high-performance QDs-based PEC devices. © 2024 Institute of Process Engineering, Chinese Academy of sciences

关键词： Titanium dioxide

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Stable and Efficient Perovskite Photovoltaics via a Three-In-One Passivating Approach by Aminoacetonitrile Hydrochloride

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advanced Energy materials 2025年第0期

作者： Liu, Yinjiang Kong, Tengfei Zhang, Yang Zhao, Zihan Chen, Weiting Liu, Wenli Gao, Peng Wang, Xu-Dong Bi, Dongqin State key laboratory of optoelectronic materials and technology Guangdong Provincial Key Laboratory of low carbon chemistry and process energy conservation School of Materials Science and Engineering Sun Yat-sen University Guangzhou510275 China Laboratory for Advanced Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institute Chinese Academy of Sciences Xiamen361021 China Yanyang Energy Inc Xiamen361021 China MOE Key Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials School of Chemistry Sun Yat-sen University Guangzhou510275 China

Reducing defect density is of significant importance for enhancing the power conversion efficiency (PCE) and stability of perovskite solar cells (PSCs). While most previous outstanding studies have focused on individual layers within the perovskite device structure. Herein, a three-in-one strategy using the aminoacetonitrile hydrochloride (AmiHCl) molecule to reduce the defects in the bulk and surface of perovskite. The results of the study found that the AmiHCl bottom modification can decrease the number of buried interface holes, doping into bulk perovskite can modulate crystallization via a strong interaction between AmiHCl and perovskite components, and the upper interface modification can inhibit the formation of vacancies by creating hydrogen bonds with A-site cations. This approach yields PSCs with an efficiency of 25.90% and a high fill factor (FF) of 88.54%. Additionally, the modified PSCs show significantly enhanced operational stability, with the PCE retaining more than 90.0% of the initial value after 1350 h of maximum power point tracking. © 2025 Wiley-VCH GmbH.

关键词： Perovskite

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Rapid Assembly of Block Copolymer Thin Films via Accelerating the Swelling Process During Solvent Annealing

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Polymers 2025年第9期17卷 1242-1242页

作者： Shui, Tian-En Chang, Tongxin Wang, Zhe Huang, Haiying College of Materials Science and Engineering Changchun University of Technology Changchun130012 China State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun130022 China Key Laboratory of Advanced Functional Polymer Membrane Materials of Jilin Province Changchun1300122 China College of Chemistry and Life Science Changchun University of Technology Changchun130012 China

Block copolymer (BCP) lithography is widely regarded as a promising next-generation nanolithography technique. However, achieving rapid assembly with defect-free morphology remains a significant challenge for its practical application. In this study, we presented a facile and efficient solvent annealing method for fabricating well-ordered BCP thin films within minutes on both flat and topographically patterned substrates. By accelerating the swelling process, rapid film swelling was observed within just 10 s of annealing, leading to well-ordered morphologies in 1~3 min. Furthermore, we systematically investigated the influence of swelling ratio (SR) on film morphology by precisely tuning solvent vapor pressure. For cylinder-forming poly(styrene-block-2-vinylpyridine) (PS-b-P2VP) films, we identified three distinct SR-dependent ordering regimes: (I) Excessive SR led to a disordered morphology;(II) near-optimal SR balanced long-range and short-range orders, and a slight increase in SR enhanced the long-range order but introduced short-range defects. (III) Insufficient SR failed to provide adequate chain mobility, limiting long-range order development. These findings highlight the critical role of SR in controlling defect density in nanopatterned surfaces. Long-range-ordered BCP nanopatterns can only be achieved under optimal SR conditions that ensure sufficient chain mobility. We believe this rapid annealing strategy, which is also applicable to other solvent-based annealing systems for BCP films, may contribute to next-generation nanolithography for microfabrication. © 2025 by the authors.

关键词： Nanoimprint lithography

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Nonvolatile Ferroelectric Manipulation of Topological States in Two-Dimensional Multiferroic van der Waals Heterostructures

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ACS Nano 2025年第20期19卷 2025 May 15页

作者： Zhang, Zeyu Huang, He Zhao, Yanzhe Wang, Liming Liu, Chuang Zhou, Shiming Wu, Yanfei Zhao, Jiapeng Qiao, Guanxiong Zhang, Jingyan Zheng, Xinqi Wang, Shouguo School of Materials Science and Engineering Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology Beijing Beijing 100083 China Anhui Provincial Key Laboratory of Magnetic Functional Materials and Devices School of Materials Science and Engineering Anhui University Hefei 230601 China

Multiferroic materials, including tunable ferrovalley characteristics and band topology, enabled by ferroelectric control at the nanoscale, possess significant potential for technology advances in next-generation magnetoelectric and spintronic applications. However, the realization of this fascinating multifunctionality in nanoscale systems with perpendicular magnetic anisotropy remains unexplored. Here, we propose a class of van der Waals multiferroic heterostructures comprising ferromagnetic, ferrovalley, and ferroelectric layers that exhibit switchable topological states in response to ferroelectric polarization. Taking the In₂Se₃/RuClBr/CrI₃ heterostructure as an example, our first-principles calculations reveal its perpendicular magnetic anisotropy and band topology transition under different ferroelectric polarizations. When the ferroelectric polarization is downward, the heterostructure exhibits a type-III band alignment with metallic properties. Remarkably, when the polarization direction is reversed upward, it demonstrates a type-I band alignment accompanied by the emergence of a quantum anomalous Hall effect. Consequently, by manipulating the ferroelectric polarization direction, the multiferroic heterostructure can switch between normal metal behavior and a nonvolatile topological insulator. This study not only proposes a viable approach for tailoring topological states through multiferroic heterostructures but also demonstrates its potential significance in advancing multifunctional spintronic applications in ferroelectronics, valleytronics, and topology. © 2025 American Chemical Society.

关键词： first-principles calculations magnetocrystalline anisotropy energy topological insulator two-dimensional multiferroic heterostructures valleytronics

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Catalysis-Assisted Synthesis of Two-Dimensional Conductive Metal-Organic Framework Films with Controllable Orientation

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Journal of the American Chemical Society 2025年第20期147卷 2025 May 12页

作者： Song, Min Wu, Yixuan Jia, Jingjing Peng, Jiahao Ren, Yixiao Cheng, Jingtian Xu, Yulong Liu, Wuyan Kang, Shuilong Fang, Yuan Huang, Lizhen Chen, Long Chi, Lifeng Lu, Guang Soochow University Suzhou215123 China Department of Chemistry Tianjin Key Laboratory of Molecular Optoelectronic Science Tianjin University Tianjin300072 China State Key Laboratory of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun130012 China MUST-SUDA Joint Research Center for Advanced Functional Materials Macau University of Science and Technology 999078 China

The facile preparation of two-dimensional (2D) conductive metal-organic framework (MOF) films with controllable orientation and thickness greatly facilitates the further structure-property investigation and performance optimization in their applications. Here, we report a catalysis-assisted synthesis strategy to the rapid production of oriented films of catechol-based (Cu3(HHTP)2, Zn3(HHTP)2, and Cu2TBA) and diamine-based (Ni3(HITP)2) 2D conductive MOFs with thicknesses adjustable from tens of nanometers to several micrometers. Relying on the utilization of a 0.3 nm Pt layer, which can be conveniently predecorated on a substrate surface via evaporating deposition or sputtering, as a catalyst for the aerobic oxidation of the redox-active ligands to trigger the formation of 2D conductive MOFs, this strategy is compatible with a majority of commonly used substrates and capable of producing patterned films with feature sizes ranging from micrometers to centimeters. Investigation on the growth kinetics of Cu3(HHTP)2 indicates that the preferential growth along the c-axis or in the ab-basal plane of its crystallites can be flexibly tuned by the formation reaction kinetics to guide the evolution of films with the face-on or edge-on orientation. The chemiresistive device incorporating the face-on Cu3(HHTP)2 film presents a high response (197%) and a fast respond speed (27 s) toward NH3 (30 ppm) at room temperature, which are superior not only to its edge-on counterpart (90% and 69 s, correspondingly) but also to other reported Cu3(HHTP)2-based sensors. © 2025 American Chemical Society.

关键词： Crystallization kinetics

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