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science China Chemistry 2025年

作者： Qingyu Niu Yingxiang Ye Lingna Su Xu He Zhiqiang Li Yu Liu School of Chemical Engineering and technology Hebei University of Technology fujian provincial key laboratory of Polymer Materials College of Chemistry and Materials Science Fujian Normal University key laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Nankai University College of Chemistry State Key Laboratory of Elemento-Organic Chemistry Nankai University

It is a great challenge to modulate purely organic fluorescence-phosphorescence dual emission in aqueous solution because the excited singlet and triplet states are in competition with each other. Herein, we report a crystalline 1:2 host-guest formed by selfassembly of 4-(4-bromophenyl)-pyridinium derivatives and cucurbit[8]uril, in which a rigid environment rich in weak interactions is directly demonstrated. Due to the inhibition of non-radiative transition and stabilization of triplet exciton in the crystalline environment, the crystalline inclusion complex exhibits ultralong room-temperature phosphorescence lifetime of 3.21 ms with an room-temperature phosphorescence(RTP) quantum yield up to 16.29%. Interestingly, the crystalline 1:2 hostguest complex demonstrates the ability of rapid identification and sensitive fluorescence-phosphorescence ratiometric detection behavior toward phenethylamine, a drug analogue, with a limit of detection as low as 27.5 nM. We believe that this study will undoubtedly broaden the utilizing scopes of RTP and offer a novel avenue for psychoactive substances monitoring.

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Activatable chemiluminescence probe based on four-arm PEGconjugated-pyropheophorbide-a for in vivo autofluorescence-free imaging of peroxynitrite

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science China Chemistry 2025年

作者： Jianmei Ke Lei Ding Ronggui Lian Cheng Zheng Wenjun Li Aixian Zheng Yupeng Sun Ming Wu Yongyi Zeng Xiaolong Liu Maochun Hong Xiaolong Zhang The United Innovation of Mengchao Hepatobiliary technology key laboratory of fujian Province Mengchao Hepatobiliary Hospital of Fujian Medical University Ganjiang Innovation Academy Chinese Academy of Sciences School of Rare Earths University of Science and Technology of China College of Chemistry Fuzhou University State key laboratory of Structure Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences

Peroxynitrite（ONOO-） is a highly reactive nitrogen species that plays pivotal roles in cell signal transduction and physiological or pathological progresses. However, commonly used ONOO-optical imaging probes are still hampered by high background/autofluorescence（fluorescence probe）, short emission wavelength, or poor selectivity in the case of chemiluminescence. Herein,we report a facile method to prepare an activatable chemiluminescence probe（PPA-PEG） with good biocompatibility and functionality for in vivo autofluorescence-free imaging of ONOO-. The PPA-PEG consists of pyropheophorbide-a（PPA）, a typical deep red photosensitizer that acts as both the recognition and signaling element, and 4-arm poly（ethylene glycol）(4-arm PEG), which improves the biosafety and water solubility of probe. These components can self-assemble into nanoparticles（namely PPA-PEG nanoprobe） in aqueous solution. The PPA-PEG nanoprobe showed an ultra-low chemiluminescence signal before interacting with ONOO-, but exhibited good selectivity, high sensitivity and a fast response toward ONOO-. The PPAPEG was successfully applied to image cellular ONOO-changes, as well as the endogenous ONOO-changes in inflammation models and subcutaneous or orthotopic hepatocellular carcinoma（HCC） tumors models in living mice. In vitro and in vivo studies verified the good detection and imaging capabilities of PPA-PEG for peroxynitrite, demonstrating suitable tissue penetration and a high signal-to-background ratio（SBR）. Thus, our nanoprobe can serve as a valuable activatable chemiluminescence imaging tool for studying important peroxynitrite-related chemical and biological applications.

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High-temperature self-powered X-ray detection in a bilayered hybrid ferroelectric halide perovskite

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science China Chemistry 2025年

作者： Yingying Zheng Panpan Yu Yunpeng Yao Shihai You Zeng-Kui Zhu Junhua Luo School of Chemistry and Chemical Engineering Jiangxi Normal University key laboratory of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education Jiangxi Normal University School of Environmental and Material Engineering Yantai University fujian science & technology Innovation laboratory for Optoelectronic Information of China

X-ray detectors which convert X-ray irradiation into electrical signals play an important role in diverse applications including medical diagnosis, security examination, nondestructive inspection, personal X-ray dosimeters and fundamental research[1–5]. Recently, metal halide perovskites（MHP） have been developed as a promising family for X-ray detection contributing to their intrinsic advantages, e.g.,simple synthesis, efficient X-ray absorption and excellent semiconducting properties[5–10].

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Three-Dimensional Broadband Acoustic waveguide Cloak

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Chinese Physics Letters 2020年第5期37卷 69-72页

作者： Chuan-Jie Hu Ya-Li Zeng Yi-Neng Liu Huan-Yang Chen Institute of electromagnetics and Acoustics and key laboratory of electromagnetic wave science and detection technology Xiamen UniversityXiamen 361005

The propagation of acoustic waves is a fundamental topic in shallow ocean *** numerically demonstrate a three-dimensional zone of silence consisting of a circular tube with gradient index metamaterials attached to its... 详细信息

关键词： waveguide Acoustic attached

Broadband and wide-angle plane focal surface Luneburg lens

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Chinese Physics B 2023年第6期32卷 16-20页

作者：李珏周杨阳陈焕阳 Institute of electromagnetics and Acoustics and Department of Physics College of Physical Science and TechnologyXiamen UniversityXiamen 361005China fujian Engineering Research Center for EDA Fujian Provincial Key Laboratory of Electromagnetic Wave Science and Detection TechnologyXiamen Key Laboratory of Multiphysics Electronic InformationXiamen UniversityXiamen 361005China

The energy crisis has aroused widespread concern, and the reform of energy structure is imminent. In the future,the energy structure will be dominated by the solar energy and other renewable energy sources. The solar concentrating technology as a promising method has been widely studied for collecting solar energy. However, the previous solar concentrating technologies suffer from some drawbacks, such as low focusing efficiency and large concentrating size. The Luneburg lens with highly efficient aberration-free focusing provides a new route for solar/energy concentrator. In this work, we designed a plane focal surface Luneburg lens(PFSLL) by transformation optics(TO). The PFSLL provides a relatively high focusing efficiency and concentration ratio of collection of energy. At the same time, it circumvents the disadvantage of curve surface of the classical Luneburg lens in device integration. Based on the reciprocity of electromagnetic waves, the PFSLL can also be applied to the antenna field to achieve broadband wide-angle scanning and highly directional radiation.

关键词： plane focal surface Luneburg lens(PFSLL) focusing efficiency concentration ratio of collection of energy

Increasing the·OH radical concentration synergistically with plasma electrolysis and ultrasound in aqueous DMSO solution

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Chinese Physics B 2022年第4期31卷 764-771页

作者： Chao Li De-Long Xu Wen-Quan Xie Xian-Hui Zhang Si-Ze Yang State key laboratory of Acoustics Institute of AcousticsChinese Academy of SciencesBeijing 100190China University of Chinese Academy of sciences Beijing 100049China fujian provincial key laboratory of Plasma and Magnetic Resonance Fujian Engineering Research Center for EDAFujian Provincial Key Laboratory of Electromagnetic Wave Science and Detection TechnologyXiamen Key Laboratory of Multiphysics Electronic InformationInstitute of Electromagnetics and AcousticsXiamen UniversityXiamen 361005China

In recent years,significant increases in waste processing and material engineering have been seen by using advanced oxidation *** treatment results and energy yields of these processes are largely determined by the generation and retention of reactive oxygen species(ROS).However,increasing the amount of ROS remains a key challenge because of the unavailability of performance-and energy-efficient *** this study,plasma electrolysis,ultrasound,and plasma electrolysis combined with ultrasound were used to treat dimethyl sulfoxide(DMSO)solutions,and the results showed that the two methods can synergistically convert filament discharge into spark discharge,and the conversion of the discharge mode can significantly increase the concentration of OH radicals and effectively improve the efficiency of DMSO *** verified the rationality of the results by analyzing the mass transfer path of ROS based on the reaction coefficients and found that the OH radicals in aqueous solution were mainly derived from the decomposition of hydrogen *** findings indicated that the synergistic action of plasma electrolysis and ultrasound can enhance the production of chemically reactive species,and provide new insights and guiding principles for the future translation of this combined strategy into real-life *** results demonstrated that the synergistic strategy of ultrasound and plasma electrolysis is feasible in the switching mode and increasing the ROS,and may open new routes for materials engineering and pollutant degradation.

关键词： plasma electrolysis ultrasound reactive species OH radical

Total Transmission from Deep Learning Designs

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Journal of Electronic science and technology 2022年第1期20卷 9-19页

作者： Bei Wu Zhan-Lei Hao Jin-Hui Chen Qiao-Liang Bao Yi-Neng Liu Huan-Yang Chen Department of Physics Xiamen UniversityXiamen 361005 Institute of electromagnetics and Acoustics Xiamen UniversityXiamen 361005 Xiamen key laboratory of Multiphysics Electronic Information Xiamen 361005 fujian provincial key laboratory of electromagnetic wave science and detection technology Xiamen 361005 fujian Engineering Research Center for EDA Xiamen 361005

Total transmission plays an important role in efficiency improvement and wavefront control,and has made great progress in many applications,such as the optical film and signal ***,many traditional physical methods represented by transformation optics have been studied to achieve total ***,these methods have strict limitations on the size of the photonic structure,and the calculation is ***,we exploit deep learning to achieve this *** deep learning,the data-driven prediction and design are carried out by artificial neural networks(ANNs),which provide a convenient architecture for large dataset *** taking the transmission characteristic of the multi-layer stacks as an example,we demonstrate how optical materials can be designed by using *** trained network directly establishes the mapping from optical materials to transmission spectra,and enables the forward spectral prediction and inverse material design of total transmission in the given parameter *** work paves the way for the optical material design with special properties based on deep learning.

关键词： Artificial neural networks(ANNs) deep learning forward spectral prediction inverse material design total transmission

Power-to-chemicals:sustainable liquefaction of food waste with plasma-electrolysis

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Frontiers of Chemical science and Engineering 2023年第5期17卷 594-605页

作者： Wenquan Xie Xianhui Zhang Dengke Xi Rusen Zhou Size Yang Patrick Cullen Renwu Zhou fujian provincial key laboratory of Plasma and Magnetic Resonance Fujian Engineering Research Center for EDAFujian Provincial Key Laboratory of Electromagnetic Wave Science and Detection TechnologyXiamen Key Laboratory of Multiphysics Electronic InformationInstitute of Electromagnetics and AcousticsXiamen UniversityXiamen 361005China School of Chemical and Biomolecular Engineering University of SydneySydney NSW 2006Australia State key laboratory of Electrical Insulation and Power Equipment Centre for Plasma BiomedicineXi’an Jiaotong UniversityXi’an 710049China

The increasing amount of food waste from various industrial,agricultural,and household sources is an environmental burden if managed *** waste management approaches have been developed for the disposal of food waste,but still suffer from either high cost,production of toxic by-products,or secondary environmental ***,we report a new and sustainable plasma electrolysis biorefinery route for the rapid and efficient liquefaction of food *** the plasma electrolysis process,only the solvent is added to liquefy the waste,and anions in the waste can contribute to catalyzing the biowaste *** liquefying the waste,the highly reactive species produced in the plasma electrolysis process can efficiently reduce the content of O,N,and Cl in the liquefied products and oxidize most of the metals into solid ***,the removal rate of Na and K elements was greater than 81%,which is significantly higher than using the traditional oil bath liquefaction,resulting in a relatively high-quality biocrude oil with a high heating value of 25.86 MJ·kg^(-1).Overall,this proposed strategy may provide a new sustainable and eco-friendly avenue for the power-to-chemicals valorization of food waste under benign conditions.

关键词： plasma electrolysis food waste liquefaction resource recovery

Preliminary study of an open-air water-contacting discharge for direct nitrogen fixation

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Plasma science and technology 2021年第3期23卷 93-101页

作者： Zhan SHU Chuanqi WANG Insaf HOSSAIN Qiang CHEN Wanlian LI Jinqi WANG Pengfei LIU Qing XIONG State key laboratory of Power Transmission Equipment and System Security and New technology Chongqing UniversityChongqing 400044People's Republic of China Shenzhen Research Institute of Xiamen University Institute of Electromagnetics and AcousticsFujianProvincial Key Laboratory of Plasma and Magnetic ResonanceKey Laboratory of Electromagnetic Wave Science and Detection TechnologyXiamen UniversityXiamen 361005People's Republic of China

Efficient nitrogen fixation through a reactive plasma process attracts intense interest due to the environmental issues induced by the conventional Haber–Bosch method. In this work, we present a direct and simple fixation routine without any catalysts for nitrogen in open air using an atmospheric-pressure pin-to-solution plasma electrolytic system. Nitrate, nitrite, and ammonia as the nitrogen-derived chemicals in solution were analyzed as indicators under various discharge conditions to estimate the energy efficiency of this process. The results show that the nitrogen fixation process was much more efficient by the pin-positive discharge compared to the negative one. N chemicals preferred to be formed when the solution was of negative polarity. It was also found that, with the help of solution circulation, the energy efficiency was enhanced compared to that of static liquid. However, an inverse trend was observed with the increase of the discharge current. Further study by optical emission spectroscopy indicates the important roles of active N2* and water vapour and their derived species near the plasma–water interface in the fixation process.

关键词： nitrogen fixation air-water discharge energy efficiency active species plasma-water interface

detection system for singlet oxygen luminescence in photodynamic therapy

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Chinese Optics Letters 2010年第1期8卷 86-88页

作者：李步洪林慧韫陈德福王敏谢树森 key laboratory of Optoelectronic science and technology for Medicine Ministry of Education of ChinaFujian Provincial Key Laboratory for Photonics TechnologyFujian Normal University

Singlet oxygen （^1O2） is widely considered to play a major role in photodynamic therapy （PDT）, and thus an increasing attention has been focused on the direct detection of ^1O2 near-infrared luminescence around 1270 nm for PDT dosimetry. A new sensitive detection system is developed to directly measure the temporal and spectral resolved ^1O2 luminescence spectra. The triplet state and ^1O2 lifetimes of Rose Bengal as a model photosensitizer in different solvents are determined, and the obtained results agree well with the published data. Our detection system has the potential application in ^1O2 luminescence-based PDT dosimetry.

关键词： Dosimetry Luminescence Optical materials Oxygen Photosensitizers Plasmons