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Core-shell structured nanoparticles for photodynamic therapy-based cancer treatment and related imaging

Coordination Chemistry Reviews 2022年 458卷 214427-214427页

作者： Yang, Yang Zeng, Zhuotong Almatrafi, Eydhah Huang, Danlian Zhang, Chen Xiong, Weiping Cheng, Min Zhou, Chengyun Wang, Wenjun Song, Biao Tang, Xiang Zeng, Guangming Xiao, Rong Li, Zhi College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education) Hunan University Changsha 410082 China Department of Dermatology Second Xiangya Hospital Central South University Changsha 410011 China Department of Chemical and Materials Engineering University of Alberta Edmonton T6G 1H9 AB Canada Center of Research Excellence in Renewable Energy and Power Systems Center of Excellence in Desalination Technology Department of Mechanical Engineering Faculty of Engineering-Rabigh King Abdulaziz University Jeddah 21589 Saudi Arabia

Photodynamic therapy (PDT) is an emerging noninvasive therapy modality for treating cancer diseases. However, conventional PDT suffers from poor stability of organic photosensitizers, limited tissue penetration depth of excitation light and hypoxic tumor microenvironment, which hinders its modern clinical applications. The combination of PDT and nanotechnology is becoming a promising technology to tackle these troubles. Core-shell structured nanoparticles are of great interest as they can integrate the functionalities of individual components into one structure and exhibit improved physical and chemical properties that are different from the single component. Therefore, many efforts have been paid to develop core–shell structured nanoparticles for PDT of cancer. This review provides a panorama of the latest achievement in the developments of core–shell structured nanoparticles for PDT-based cancer treatment and related imaging. Concretely, this review starts with the categories of core–shell structured nanoparticles, followed by the functions of these nanoparticles in PDT of cancer, including photosensitizer delivery vehicle, energy transducer, photosensitizer and hypoxic tumor microenvironment modulator. Then the applications of core–shell structured particles for photodynamic synergistic therapy of cancer are highlighted as well as their imaging applications as contrast agents. Finally, perspectives on the major challenges and opportunities are presented for better developments in the future research. © 2022 Elsevier B.V.

关键词： Cancer treatment Core-shell Imaging Photodynamic therapy Synergistic therapy

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Surface Reconstruction of An Integrated CoO-Co2Mo3O8Electrode Enabling Efficient Ampere-Level Hydrogen Evolution in Alkaline Water or Seawater

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Angewandte Chemie 2025年

作者： Prof. Jiajia Lu Peng-Jun Deng Dr. Yang Liu Prof. Shengyu Jing Prof. Panagiotis Tsiakaras Henan Provincial Key Laboratory of Nanocomposites and Applications Institute of Nano-Structured Functional Materials Huanghe Science and Technology College Zhengzhou 450006 China Laboratory of Alternative Energy Conversion Systems Department of Mechanical Engineering School of Engineering University of Thessaly Pedion Areos 38834 Greece School of Materials Science and Engineering Henan Normal University Xinxiang 453007 China School of Information and Control Engineering China University of Mining and Technology Xuzhou 221116 China

To accelerate the water dissociation in the Volmer step and alleviate the destruction of bubbles to the physical structure of catalysts during the alkaline hydrogen evolution, an integrated electrode of cobalt oxide and cobalt-molybdenum oxide grown on Ni foam, named CoO-Co 2 Mo 3 O 8 , is designed. This integrated electrode enhances the catalyst-substrate interaction confirmed by a micro-indentation tester, and thus hinders the destruction of the physical structure of catalysts caused by bubbles. Electrochemical testing shows the occurrence of a surface reconstruction of the integrated electrode, and CoO is transformed into Co(OH) 2 , denoted as Co(OH) 2 -Co 2 Mo 3 O 8 . Theoretical calculations determine that Co(OH) 2 -Co 2 Mo 3 O 8 has significantly low activation barrier for water dissociation and presents easy hydroxide desorption, which accelerate the catalytic reaction. Electrochemical experiments show that Co(OH) 2 -Co 2 Mo 3 O 8 exhibits outstanding activity, reaching current density values of −100 and −1000 mA cm −2 with overpotentials only 57.8 and 195.8 mV, respectively. Furthermore, it demonstrates excellent stability at −500 and −1000 mA cm −2 for 200 h. Combined with the previously reported anode, the two-electrode system also provides the stable operation from 100 to 1000 mA cm −2 for 600 h in alkaline solution, and over 200 h at 500 and 1000 mA cm −2 in alkaline seawater.

关键词： hydrogen evolution surface reconstruction water dissociation integrated electrode industrial level current

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General-purpose machine-learned potential for 16 elemental metals and their alloys

arXiv

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arXiv 2023年

作者： Song, Keke Zhao, Rui Liu, Jiahui Wang, Yanzhou Lindgren, Eric Wang, Yong Chen, Shunda Xu, Ke Liang, Ting Ying, Penghua Xu, Nan Zhao, Zhiqiang Shi, Jiuyang Wang, Junjie Lyu, Shuang Zeng, Zezhu Liang, Shirong Dong, Haikuan Sun, Ligang Chen, Yue Zhang, Zhuhua Guo, Wanlin Qian, Ping Sun, Jian Erhart, Paul Ala-Nissila, Tapio Su, Yanjing Fan, Zheyong Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology Beijing Beijing100083 China School of Materials Science and Engineering Hunan University Changsha410082 China MSP group QTF Centre of Excellence Department of Applied Physics Aalto University P.O. Box 15600 Aalto EspooFI-00076 Finland Chalmers University of Technology Department of Physics Gothenburg41926 Sweden National Laboratory of Solid State Microstructures School of Physics Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing210093 China Department of Civil and Environmental Engineering George Washington University WashingtonDC20052 United States Department of Electronic Engineering and Materials Science and Technology Research Center The Chinese University of Hong Kong N.T. Shatin999077 Hong Kong Department of Physical Chemistry School of Chemistry Tel Aviv University Tel Aviv6997801 Israel Institute of Zhejiang University-Quzhou Quzhou324000 China College of Chemical and Biological Engineering Zhejiang University Hangzhou310027 China State Key Laboratory of Mechanics and Control of Mechanical Structures Key Laboratory for Intelligent Nano Materials and Devices of Ministry of Education Institute for Frontier Science Nanjing University of Aeronautics and Astronautics Nanjing210016 China Department of Mechanical Engineering The University of Hong Kong Pokfulam Road Hong Kong School of Science Harbin Institute of Technology Shenzhen518055 China College of Physical Science and Technology Bohai University Jinzhou121013 China Interdisciplinary Centre for Mathematical Modelling Department of Mathematical Sciences Loughborough University Leicestershire LoughboroughLE11 3TU United Kingdom

Machine-learned potentials (MLPs) have exhibited remarkable accuracy, yet the lack of general-purpose MLPs for a broad spectrum of elements and their alloys limits their applicability. Here, we present a feasible approach for constructing a unified general-purpose MLP for numerous elements, demonstrated through a model (UNEP-v1) for 16 elemental metals and their alloys. To achieve a complete representation of the chemical space, we show, via principal component analysis and diverse test datasets, that employing one-component and two-component systems suffices. Our unified UNEP-v1 model exhibits superior performance across various physical properties compared to a widely used embedded-atom method potential, while maintaining remarkable efficiency. We demonstrate our approach's effectiveness through reproducing experimentally observed chemical order and stable phases, and large-scale simulations of plasticity and primary radiation damage in MoTaVW alloys. This work represents a significant leap towards a unified general-purpose MLP encompassing the periodic table, with profound implications for materials science. Copyright © 2023, The Authors. All rights reserved.

关键词： Radiation damage

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Super-Assembled Lamellar Conductive Heterochannels with Optical-Electrical Coupling Sensitivity for Smart Ion Transport

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Angewandte Chemie 2025年

作者： Yaxin Guo Xin Zhang Dr. Shan Zhou Dr. Qirui Liang Hui Zeng Dr. Yeqing Xu Dr. Abuduheiremu Awati Prof. Kang Liang Prof. Dazhang Zhu Prof. Mingxian Liu Prof. Lei Jiang Prof. Biao Kong Department of Chemistry State Key Laboratory of Molecular Engineering of Polymers Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative Materials Fudan University Shanghai 200438 P. R. China College of Materials Science and Engineering Institute of Biomedical Materials and Engineering Qingdao University Qingdao 266071 P. R. China Qingdao Innovation and Development Center Harbin Engineering University Qingdao 266400 P. R. China School of Chemical Engineering and Graduate School of Biomedical Engineering The University of New South Wales Sydney New South Wales 2052 Australia Shanghai Key Lab of Chemical Assessment and Sustainability School of Chemical Science and Engineering Tongji University Shanghai 200092 P. R. China CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science Technical Institute of Physics Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China

Artificial nanofluidic devices inspired bylight-driven ion transport in biological systems, leveraging the photoelectric effect, have attracted extensive attention for their potential in signal transduction and smart ion transport applications. However, effective separation of photogenerated carriers in traditional p-n junction interface can be hindered by energy band structure of different semiconductor materials. Here, we present a novel approach using conductive polypyrrole (PPy) to modify graphene oxide (GO), creating polypyrrole-graphene oxide (PyGO) functional lamellar conductive nanochannels with tailored channel-sized gradients and inherent optical-electrical coupling sensitivity via a facile super-assembly strategy. This design facilitates the PyGO own conductive lamellar channels and efficient separation of photogenerated carriers, resulting in significantly enhanced selective ion transport behavior. Coupling the conductivity and photosensitivity of PPy contributes to a peak power density of 14.1 W m −2 under a salinity differential of 0.5/0.01 M NaCl, which is 35.6 % higher than that under dark conditions. Additionally, combing the salinity gradients with optical-electrical coupling sensitivity of the nanofludic devices, we demonstrate the application of PyGO in a real-time detection device for monitoring ion concentrations in nutrient solutions, paving the way for smart irrigation systems in agriculture. This work presents a novel and effective strategy for light-driven ion transport with potential applications in energy conversion and beyond.

关键词： super-assembly conductive polypyrrole heterochannels smart ion transport salinity gradient energy harvesting

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Cell Volume Regulation Modulates Macrophage-Related Inflammatory Responses Via Jak/Stat Signaling Pathways

SSRN

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SSRN 2024年

作者： Yang, Xueying Wang, Qifan Shao, Fei Zhuang, Zhumei Wei, Ying Zhang, Yang Zhang, Lijun Ren, Changle Wang, Huanan State Key Laboratory of Fine Chemicals Frontiers Science Center for Smart Materials Oriented Chemical Engineering Dalian University of Technology Dalian116024 China MOE Key Laboratory of Bio-Intelligent Manufacturing Dalian Key Laboratory of Artificial Organ and Regenerative Medicine School of Bioengineering Dalian University of Technology Liaoning Dalian China Zhejiang University-University of Edinburgh Institute Zhejiang University School of Medicine Haining China Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cells and Regenerative Medicine Zhejiang University School of Medicine Hangzhou China Department of Sports Medicine The Second Affiliated Hospital Liangzhu Laboratory Zhejiang University School of Medicine Hangzhou China Dalian University of Technology China Institute of Stomatological Department of Joint Surgery Dalian Municipal Central Hospital Dalian Medical University Dalian China

Cell volume as a characteristic of changes in response to external environmental cues has been shown to control the fate of stem cells. However, its influence on macrophage behavior and macrophage-mediated inflammatory responses have rarely been explored. Herein, through mediating the volume of macrophages by adding polyethylene glycol (PEG), we demonstrated the feasibility of fine-tuning cell volume to regulate macrophage polarization towards anti-inflammatory phenotypes, thereby enabling to reverse macrophage-mediated inflammation response. Specifically, lower the volume of primary macrophages can induce both resting macrophages (M0) and stimulated pro-inflammatory macrophages (M1) to up-regulate the expression of anti-inflammatory factors and down-regulate pro-inflammatory factors. Further mechanistic investigation revealed that macrophage polarization resulting from changing cell volume might be mediated by JAK/STAT signaling pathway evidenced by the transcription sequencing analysis. We further propose to apply this strategy for the treatment of arthritis via direct introduction of PEG into the joint cavity to modulate synovial macrophage-related inflammation. Our preliminary results verified the credibility and effectiveness of this treatment evidenced by the significant inhibition of cartilage destruction and synovitis at early stage. In general, our results suggest that cell volume can be a biophysical regulatory factor to control macrophage polarization and potentially medicate inflammatory response, thereby providing a potential facile and effective therapy for modulating macrophage mediated inflammatory responses. © 2024, The Authors. All rights reserved.

关键词： Macrophages

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Effects of fluorine on photocatalysis

引用

Chinese Journal of Catalysis 2020年第10期41卷 1451-1467页

作者： Xiaofang Li Xiaofeng Wu Shengwei Liu Yuhan Li Jiajie Fan Kangle Lv Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Enducation College of Resources and Environmental ScienceSouth-Central University for NationalitiesWuhan 430074HubeiChina College of Chemistry and Chemical Engineering Wuhan University of Science and TechnologyWuhan 430081HubeiChina School of Environmental Science and Engineering Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation TechnologySun Yat-sen UniversityGuangzhou 510006GuangdongChina Engineering Research Center for Waste Oil Recovery Technology and Equipment Ministry of EducationChongqing Key Laboratory of Catalysis and New Environmental MaterialsChongqing Technology and Business UniversityChongqing 400067China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001HenanChina Laboratory of Inorganic Materials and Catalysis Department of Chemical Engineering and ChemistryEindhoven University of TechnologyP.0.Box 5135600 MB EindhovenThe Netherlands

Tailoring the microstructure of pristine TiO2 is essential to narrow its band gap and prolong the charge lifetime. In particular, strategies involving fluorine have been used successfully to tune the surface chemistry, electronic structure, and morphology of TiO2 photocatalysts to improve their photocatalytic activity based on the strong complexation between fluoride ions and TiO2 and the high electronegativity of fluorine. In this review, we summarize the strategies involving fluorine to establish highly efficient TiO2 photocatalytic systems or fabricate highly efficient TiO2 photocatalysts. The main fluorine effects(i.e. the effects of fluorine on photocatalysis) include the following four aspects:(1) Surface effects of fluoride on TiO2 photocatalysis,(2) effects of fluorine doping on TiO2 photocatalysis,(3) fluoride-mediated tailoring of the morphology of TiO2 photocatalysts, and(4) the effects of fluorine on non-TiO2 photocatalysis. Additionally, the unique applications of these fluorine effects in photocatalysis, including selective degradation of pollutants, selective oxidation of chemicals, water-splitting to produce H2, reduction of CO2 to produce solar fuels, and improvement of the thermostability of TiO2 photocatalysts, are reviewed.

关键词： TiO2 Fluorine Photocatalysis Doping Surface modification

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Inhibition of sulfate-reducing bacteria influenced corrosion on hydrophobic poly(dimethylsiloxane)coatings

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Journal of materials Science & Technology 2020年第17期52卷 198-206页

作者： Innocent O.Arukalam C.N.Njoku Lihui Yang Baorong Hou Ying Li Corrosion and Protection Division Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Shenyang National Laboratory for Materials Science Northeastern UniversityShenyang 110819China Department of Polymer and Textile Engineering Federal University of TechnologyP.M.B.1526 Owerri Nigeria Key Laboratory of Marine Environmental Corrosion and Bio-fouling Institute of OceanologyChinese Academy of SciencesQingdao 266071China Open Studio for Marine Corrosion and Protection Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Advanced Functional Materials/Corrosion Research Group Africa Centre of Excellence in Future Energies and Electrochemical Systems(ACE-FUELS)Federal University of Technology Owerri(FUTO)Nigeria

Sulfate-reducing bacteria(SRB)has been pointed out as one of the causative agents of microbial induced corrosion in the marine *** address this problem,novel strategies are being experimented as against the earlier methods which have been banned due to their toxic effects on useful aquatic ***,the aim of this study was to investigate the effect of non-toxic perfluorodecyltrichlorosilane(PFDTS)on resistance of hydrophobic poly(dimethylsiloxane)/phosphoric acid-treated zinc oxide(PDMS/PA-treated ZnO)coatings to SRB-induced biofouling and *** surface features of the coatings before and after exposure to SRB/NaCl solution were analyzed by scanning electron microscopy(SEM).Wettability of the coatings before and after exposure was also *** interaction of SRB with the coatings was investigated by FTIR *** resistance performance of the modified coatings against SRB-induced corrosion was monitored by electrochemical impedance spectroscopy(EIS).The EIS measurements revealed that 0.20 g PFDTS-based coating displayed highest corrosion resistance with impedance modulus of 6.301×10^10 after 15 d of exposure to SRB/NaCl *** results were corroborated by surface and chemical interaction analyses,and thus,indicate that 0.20 g PFDTSmodified PDMS/PA-treated ZnO coating has potentials for excellent SRB-induced corrosion resistance and anti-biofouling performance.

关键词： Corrosion Hydrophobic coating Perfluorodecyltrichlorosilane Poly(dimethylsiloxane) Sulfate-reducing bacteria

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Experimental Investigation of Fuel Starvation on Industrial-Sized Solid Oxide Fuel Cells Using Segmented Cathodes and Area Specific Resistances

SSRN

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SSRN 2022年

作者： Zhang, Jihao Guo, Huding Lei, Libin Shen, Shuanglin Zheng, Keqing Han, Minfang Laboratory of Hydrogen Energy and Fuel Cells School of Low-Carbon Energy and Power Engineering China University of Mining and Technology Xuzhou221116 China Xuzhou Huatsing Jingkun Energy Co. Ltd. Xuzhou221005 China Smart Energy Research Center School of Materials and Energy Guangdong University of Technology Guangzhou510006 China State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment Department of Energy and Power Engineering Tsinghua University Beijing100084 China

Fuel starvation needs to be timely detected to avoid anode oxidation, especially for industrial-sized Solid oxide fuel cells (SOFCs). In this work, a novel and useful segmented cell measurement method is developed to detect fuel starvation occurring in local regions. For this developed method, the cathode of SOFCs is segmented and only the voltage signal is measured in the segments. Then, the local current-voltage (I-V) curve of each segment is determined using the measured voltage together with the global I-V curve. To validate the data reliability, area specific resistances (ASRs) are calculated and compared among different segments. Varieties of current loading rates and fuel flow rates are correspondingly investigated. Furthermore, the occurrence of fuel starvation is identified using the rapid voltage drop in I-V curves as well as the rapid ASR increment in I-ASR curves. The results show that compared to the voltage drop, the intrinsic ASR increment is a more sensitive and robust criterion to identify the occurrence of fuel starvation. This work will considerably benefit the progress of segmented cell measurements and local fuel starvation identifications. © 2022, The Authors. All rights reserved.

关键词： Cathodes

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Improving the Performance of 2d Perovskite Solar Cells by Carrier Trappings and Minifying the Grain Boundaries

SSRN

引用

SSRN 2022年

作者： Kim, Eun-Bi Akhtar, M. Shaheer Ameen, Sadia Umar, Ahmad Qasem, Hussam Shkir, Mohd Kaushik, Ajeet Mishra, Yogendra Kumar School of Chemical Engineering Jeonbuk National University Jeonbuk 54896 Korea Republic of Jeonbuk National University Jeonbuk Korea Republic of Advanced Materials and Devices Laboratory Department of Bio-Convergence Science Advanced Science Campus Jeonbuk National University 56212 Korea Republic of Department of Chemistry College of Science and Arts Najran University Najran11001 Saudi Arabia Najran University Najran11001 Saudi Arabia Riyadh11442 Saudi Arabia Department of Physics Faculty of Science King Khalid University Abha Saudi Arabia School of Science and Technology Glocal University Uttar Pradesh Saharanpur247001 India NanoBioTech Laboratory Health Systems Engineering Department of Environmental Engineering Florida Polytechnic University LakelandFL United States Mads Clausen Institute NanoSYD University of Southern Denmark Alsion 2 Sønderborg DK-6400 Denmark

Fabrication of 2D perovskite layers on 3D perovskite light absorbers, as the perovskite solar cells (PSCs), is being exploited to achieve high power-conversion efficiency (PCE) along with promising long-term stability. However, to improve the performance of PSCs, an intermediate layer of smart material is required which can fasciliate the desired interaction between two perovskite layers. The present work explores the role of 4-methoxyphenethylammonium (MPA+) cations as interfacing layer in 2D halide perovskite material towards developing an efficient PSCs. The effect of different ammonium salts (NH4Cl and NH4SCN) as additives in mixed halide MPA0.2MA0.8PbI3 is examined and the optoelectronic and photovoltaic responses of the developed PSCs are investigated in detail. Mixed halide MPA0.2MA0.8PbI3 thin film processed with NH4SCN additive showed an improved morphological and crystalline properties of fabricated PSCs as well as reduced non-radiative charge-carrier recombination rate. The NH4SCN/MPA0.2MA0.8PbI3 thin film based PSC demonstrated the highest PCE of ~15.1%, which is nearly 10% higher as compared to that of control PSC sample (~13.7 %) and NH4Cl/MPA0.2MA0.8PbI3 thin film PSC (7.53%). The NH4SCN/MPA0.2MA0.8PbI3 based PSC with highest efficiency, additionally showed a significantly improved device stability. It retained an efficieniecy value of ~95% of its initial even after exposure to ambient condition for over 100 hours. The presented NH4SCN/MPA0.2MA0.8PbI3 thin film based perovskite solar cell with high efficiency and high stability could open new avenues for improving the performance of solar cells and increase their contribution towards generation of renewable energy in future. © 2022, The Authors. All rights reserved.

关键词： Perovskite solar cells

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Surface Charging Phenomena on HVDC Spacers for Compressed SF_(6) Insulation and Charge Tailoring Strategies

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CSEE Journal of Power and Energy systems 2020年第1期6卷 83-99页

作者： Chuanyang Li Yuan Xu Chuanjie Lin Geng Chen Youping Tu Yao Zhou Zhipeng Lei Tao Han Simone Vincenzo Suraci Jian Wang Weidong Liu M.Tariq Nazir Shun He Andrea Cavallini Giovanni Mazzanti Davide Fabiani Jinliang He Electrical Insulation Research Center Institute of Materials ScienceElectrical and Computer EngineeringUniversity of ConnecticutStorrsCT 06269USA. China Electric Power Research Institute Beijing 100192China Department of Electrical Electronicand Information Engineering“Guglielmo Marconi”University of BolognaViale Risorgimento 2Bologna40136Italy State Key Laboratory of Power Systems Department of Electrical EngineeringTsinghua UniversityBeijing 100084China Beijing Area Major Laboratory of High Voltage and Electromagnetic Compatibility North China Electric Power UniversityBeijing 102206China Shanxi Key Laboratory of Mining Electrical Equipment and Intelligent Control National and Provincial Joint EngineeringTaiyuan University of TechnologyTaiyuan 030024China Key Laboratory of Smart Grid of Education Ministry School of Electrical and Information EngineeringTianjin UniversityTianjin 300072China School of Mechanical and Manufacturing Engineering University of New South Wales SydneyNSW 2052Australia Electric Power Research Institute Yunnan Electric Power Grid Co.ltd.KunmingYunnan 650217China

Surface flashover of spacers is a key factor limiting the application of HVDC GIS/GIL,while the charge accumula-tion on the surface of the spacer could have a potential adverse effect on the surface flashover *** paper discusses the laws regarding distribution patterns of surface charges and the related *** field-dependent property is discussed in detail to comprehensively illustrate the charge transport mecha-nism and explain the research differences regarding different surface charge patterns obtained by previous *** addition,the main surface charge control methods for epoxy resin are summarized and *** potential research directions of charge control methods and key points in manufacturing of spacers used in HVDC GIS/GIL are also explored.

关键词： GIL HVDC insulator SF6 surface charge accumulation surface flashover

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