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Controlled Assembly of Luminescent Lanthanide‑Organic Frameworks via Post‑Treatment of 3D‑Printed Objects

Nano-Micro Letters 2021年第1期13卷 303-316页

作者： Jiahui Huang Peiyi Wu State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science and Laboratory of Advanced MaterialsFudan UniversityShanghai 200433People’s Republic of China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of ChemistryChemical Engineering and BiotechnologyCenter for Advanced Low‑Dimension MaterialsDonghua UniversityShanghai 201620People’s Republic of China

Complex multiscale assemblies of metal-organic frameworks are essential in the construction of largescale optical platforms but often restricted by their bulk nature and conventional *** integration of nanomaterials and 3D printing technologies allows the fabrication of multiscale functional *** study reports a unique method of controlled 3D assembly purely relying on the post-printing treatment of printed *** immersing a 3D-printed patterned construct consisting of organic ligand in a solution of lanthanide ions,in situ growth of lanthanide metal-organic frameworks(LnMOFs)can rapidly occur,resulting in macroscopic assemblies and tunable fluorescence *** phenomenon,caused by coordination and chelation of lanthanide ions,also renders a sub-millimeter resolution and high shape *** a proof of concept,a type of 3D assembled LnMOFsbased optical sensing platform has demonstrated the feasibility in response to small molecules such as *** is anticipated that the facile printing and design approach developed in this work can be applied to fabricate bespoke multiscale architectures of functional materials with controlled assembly,bringing a realistic and economic prospect.

关键词： 3D printing Luminescent lanthanide-organic frameworks Macroscopic assembly In situ growth Optical sensing

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Challenges in Developing MOF-Based Membranes for Gas Separation

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Langmuir 2023年第8期39卷 2871-2880页

作者： Kang, Dun-Yen Lee, Jong Suk Department of Chemical Engineering National Taiwan University No. 1 Sec. 4 Roosevelt Road Taipei10617 Taiwan International Graduate Program of Molecular Science and Technology National Taiwan University No. 1 Sec. 4 Roosevelt Road Taipei10617 Taiwan Center of Atomic Initiative for New Materials National Taiwan University No. 1 Sec. 4 Roosevelt Road Taipei10617 Taiwan Department of Chemical and Biomolecular Engineering Sogang University Baekbeom-ro 35 Seoul4107 Korea Republic of Institute of Emergent Materials Sogang University 35 Baekbeom-ro Seoul4107 Korea Republic of

Metal-organic frameworks (MOFs) are promising candidates for membrane gas separation. MOF-based membranes include pure MOF membranes and MOF-based mixed matrix membranes (MMMs). This Perspective discusses the challenges for the next stage of the development of MOF-based membranes based on research conducted in the past decade. We focused on three major issues associated with pure MOF membranes. First, some MOF compounds have been overstudied, despite the availability of numerous MOFs. Second, gas adsorption and diffusion in MOFs are often independently investigated. The correlation between adsorption and diffusion has seldom been discussed. Third, we identify the importance of characterizing the gas distribution in MOFs to understand the structure-property relationships for gas adsorption and diffusion in MOF membranes. For MOF-based MMMs, engineering the MOF-polymer interface is essential for achieving the desired separation performance. Various approaches to modify the MOF surface or polymer molecular structure have been proposed to improve the MOF-polymer interface. Herein, we present defect engineering as a facile and efficient approach for engineering the MOF-polymer interfacial morphology and its extended application for various gas separations. © 2023 American chemical Society.

关键词： Organometallics

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Plasma-Enabled Graphene Quantum Dot Hydrogel-Magnesium Composites as Bioactive Scaffolds for In Vivo Bone Defect Repair

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ACS Applied materials and Interfaces 2023年第38期15卷 44607-44620页

作者： Wong, Pei-Chun Kurniawan, Darwin Wu, Jia-Lin Wang, Wei-Ru Chen, Kuan-Hao Chen, Chieh-Ying Chen, Ying-Chun Veeramuthu, Loganathan Kuo, Chi-Ching Ostrikov, Kostya Ken Chiang, Wei-Hung Graduate Institute of Biomedical Optomechatronics College of Biomedical Engineering Taipei Medical University Taipei110 Taiwan Orthopedics Research Center Taipei Medical University Hospital Taipei110 Taiwan Department of Chemical Engineering National Taiwan University of Science and Technology Taipei10607 Taiwan Department of Orthopedics School of Medicine College of Medicine Taipei Medical University Taipei110 Taiwan Department of Orthopedics Taipei Medical University Hospital Taipei110 Taiwan Centers for Regional Anesthesia and Pain Medicine Wan Fang Hospital Taipei Medical University Taipei110 Taiwan School of Biomedical Engineering College of Biomedical Engineering Taipei Medical University Taipei110 Taiwan Graduate Institute of Biomedical Materials and Tissue Engineering College of Biomedical Engineering Taipei Medical University Taipei110 Taiwan Department of Orthopedics Shuang Ho Hospital Taipei Medical University New Taipei235 Taiwan Department of Mechanical Engineering National Taiwan University of Science and Technology Taipei10607 Taiwan Department of Molecular Science and Engineering Institute of Organic and Polymeric Materials National Taipei University of Technology Taipei106 Taiwan BrisbaneQLD4000 Australia

Bioactive and mechanically stable metal-based scaffolds are commonly used for bone defect repair. However, conventional metal-based scaffolds induce nonuniform cell growth, limiting damaged tissue restoration. Here, we develop a plasma nanotechnology-enhanced graphene quantum dot (GQD) hydrogel-magnesium (Mg) composite scaffold for functional bone defect repair by integrating a bioresource-derived nitrogen-doped GQD (NGQD) hydrogel into the Mg ZK60 alloy. Each scaffold component brings major synergistic advantages over the current alloy-based state of the art, including (1) mechanical support of the cortical bone and calcium deposition by the released Mg2+ during degradation;(2) enhanced uptake, migration, and distribution of osteoblasts by the porous hydrogel;and (3) improved osteoblast adhesion and proliferation, osteogenesis, and mineralization by the NGQDs in the hydrogel. Through an in vivo study, the hybrid scaffold with the much enhanced osteogenic ability induced by the above synergy promotes a more rapid, uniform, and directional bone growth across the hydrogel channel, compared with the control Mg-based scaffold. This work provides insights into the design of multifunctional hybrid scaffolds, which can be applied in other areas well beyond the demonstrated bone defect repair. © 2023 American chemical Society.

关键词： Semiconductor quantum dots

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Recent progress on surface chemistryⅠ:Assembly and reaction

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Chinese chemical Letters 2024年第12期35卷 43-94页

作者： Xin Li Zhen Xu Donglei Bu Jinming Cai Huamei Chen Qi Chen Ting Chen Fang Cheng Lifeng Chi Wenjie Dong Zhenchao Dong Shixuan Du Qitang Fan Xing Fan Qiang Fu Song Gao Jing Guo Weijun Guo Yang He Shimin Hou Ying Jiang Huihui Kong Baojun Li Dengyuan Li Jie Li Qing Li Ruoning Li Shuying Li Yuxuan Lin Mengxi Liu Peinian Liu Yanyan Liu Jingtao Lü Chuanxu Ma Haoyang Pan JinLiang Pan Minghu Pan Xiaohui Qiu Ziyong Shen Shijing Tan Bing Wang Dong Wang Li Wang Lili Wang Tao Wang Xiang Wang Xingyue Wang Xueyan Wang Yansong Wang Yu Wang Kai Wu Wei Xu Na Xue Linghao Yan Fan Yang Zhiyong Yang Chi Zhang Xue Zhang Yang Zhang Yao Zhang Xiong Zhou Junfa Zhu Yajie Zhang Feixue Gao Yongfeng Wang Center for Carbon-based Electronics and Key Laboratory for the Physics and Chemistry of Nanodevices School of ElectronicsPeking UniversityBeijing 100871China Spin-X Institute School of MicroelectronicsSouth China University of TechnologyGuangzhou 511442China School of Materials and Energy Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage DevicesGuangdong University of TechnologyGuangzhou 510006China Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093 China i-Lab CAS Key Laboratory of Nanophotonic Materials and DevicesSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China CAS Key Laboratory of Molecular Nanostructure and Nanotechnology CAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of SciencesBeijing 100190China State Key Laboratory for Organic Electronics and Information Displays&Jiangsu Key Laboratory for Biosensors Institute of Advanced MaterialsJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing University of Posts and TelecommunicationsNanjing 210023China Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123China Hefei National Research Center for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China Institute of Physics&University of Chinese Academy of Sciences Beijing 100190China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China College of Chemistry Beijing Normal UniversityBeijing 100875China Beijing National Laboratory for Molecular Sciences(BNLMS) College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China School

Surface chemistry focuses on the investigation of the adsorption,migration,assembly,activation,reaction,and desorption of atoms and molecules at *** chemistry plays the pivotal roles in both fundamental science and applied *** review will summarize the recent progresses on surface assembly,synthesis and catalysis investigated mainly by scanning tunneling microscopy and atomic force *** assemblies of water and small biomolecules,construction of Sierpin′ski triangles and surface chirality are ***-surface synthesis of conjugated carbo-and heterocycles and other kinds of carbon nanostructures are *** model catalysis,including single-atom catalysis and electrochemical catalysis,are discussed at the single-atom level.

关键词： Surface chemistry Assembly Surface synthesis Catalysis on surface Surface electrochemical processes

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Creep-recovery deformation of 304 stainless-steel springs under low forces

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Mechanics of materials 2024年 193卷

作者： Tsai, Ming-Yen Chang, Shou-Yi Zhang, Yulin Yang, Fuqian Lee, Sanboh Department of Materials Science and Engineering National Tsing Hua University Hsinchu300 Taiwan Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences Chongqing400714 China Materials Program Department of Chemical and Materials Engineering University of Kentucky LexingtonKY40506 United States

The deformation behavior of materials at high temperatures determines the structural stability of mechanical structures under high-temperature service conditions. In this work, we prepare helical springs from 304 stainless-steel wires and study creep-recovery deformation of the helical springs under small forces at temperatures of 475–575 °C. In contrast to most methods reported in the literature, we use Kelvin representation of the Burgers model with a nonlinear dashpot in series connection to analyze the creep-recovery deformation of the helical springs and suggest the deformation mechanisms of the diffusion of interstitial atoms and dislocation generation/annihilation in transient creep and recovery of the helical springs under small forces. For the creep deformation, the stress exponent and activation energy for the plastic flow of the nonlinear dashpot are 2 and 57.8 kJ/mol, respectively, and the activation energy for the deformation flow of the linear dashpot is 41.8 kJ/mol. The nonlinear dashpot does not play any role in the recovery deformation, and the formation energy of defects for the recovery deformation of the helical springs is 51.4 kJ/mol. The approach used in this work provides a simple method to use a phenomenological model with a nonlinear dashpot to capture the power-law creep deformation of metallic materials. © 2024

关键词： Activation energy

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A desulphurization strategy for Sonogashira couplings by visible light/copper catalysis

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Organic Chemistry Frontiers 2022年第2期9卷 386-393页

作者： Xuan Li Min Jiang Xiaolong Zhu Xiuyan Song Qirong Deng Jian Lv Daoshan Yang Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science MOECollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao266042P.R.China Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology(Ministry of Education) Department of ChemistryTsinghua UniversityBeijing 100084People’s Republic of China College of Materials Chemistry and Chemical EngineeringHangzhou Normal UniversityHangzhou310036P.R.China

The development of new copper-based catalysts in photoredox transformations has become a rapidly growing area of research and has been actively explored in the past several ***,we have developed a new copper-based catalyst,[(binap)(tpy)Cu]Cl,and applied it in the visible-light promoted Sonogashira coupling *** mild protocol results in various substituted alkynes from simple sulfonium salts which can be easily prepared from commercially available and inexpensive thiols,alcohols,and alkyl *** study will broaden the still limited strategies of copper photocatalysts in organic transformations.

关键词： copper visible coupling

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Unlocking Multi-photoresponse in Phenothiazine Derivatives Through Photoinduced Radical and Keto-Enol Tautomerism

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CCS Chemistry 2025年第3期7卷 637-647页

作者： Duo Xu Tao Wang Shitai Liu Guiqiang Pu Jie Yang Manman Fang Xiaogang Liu Zhen Li Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityBinhai New CityFuzhou 350207 Department of Chemistry National University of SingaporeSingapore 117543 Department of Chemical and Biomolecular Engineering National University of SingaporeSingapore 117585 Institute of Molecular Aggregation Science Tianjin UniversityTianjin 300072 Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials Department of ChemistryWuhan UniversityWuhan 430072

Achieving photochromism,photodeformation,and photoinduced room-temperature phosphorescence(RTP)simultaneously in a single type of moleculedoped film is a complex and challenging ***,we introduce an efficient design strategy that utilizes dicarbonyl as a bridge linking between phenothiazine(PTZ)units,thereby enabling a synergistic multi-photoresponse upon *** study reveals that thin films of polyvinyl alcohol(PVA)doped with five PTZ derivatives(DPTZCn:n=1–5)show photoactivated ***,the DPTZC1 variant in PVA film uniquely undergoes photoactivated macroscopic deformation and displays enhanced photoluminescence efficiency compared to its PTZ counterparts(DPTZCn:n=2–5)in PVA *** photophysical analysis indicates that the exceptional performance of DPTZC1 stems from the combined effects of keto-enol tautomerism and matrix rigidification,which also facilitate the generation of photoinduced radicals in DPTZC1 in the PVA *** investigate the potential bionic applications of the versatile DPTZC1,providing insights into the design of intelligent,photodriven materials based on RTP.

关键词： photoresponsive materials photoactivated phosphorescence photodeformation photochromism room temperature phosphorescence

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Alkylsulfonium salts for the photochemical desulphurizative functionalization of heteroarenes

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Organic Chemistry Frontiers 2022年第2期9卷 347-355页

作者： Xiaolong Zhu Min Jiang Xuan Li Enjie Zhu Qirong Deng Xiuyan Song Jian Lv Daoshan Yang Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science MOECollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao266042P.R.China Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology(Ministry of Education) Department of ChemistryTsinghua UniversityBeijing 100084People’s Republic of China College of Materials Chemistry and Chemical EngineeringHangzhou Normal UniversityHangzhou310036P.R.China

The development of new versatile alkylation reagents that can be transformed from diverse available chemical raw materials is highly ***,an efficient,metal-free organic photoredox-catalyzed direct alkylation of heteroarenes via a desulphurization strategy using alkylsulfonium salts as alkylation reagents under mild conditions has been described for the first *** inexpensive and efficient organic photoredox-catalyzed method offers a new and useful strategy for constructing various biologically interesting heteroarenes in the fields of synthetic and pharmaceutical chemistry,and extends the scope of the still limited sulfonium salt photochemistry.

关键词： salts alkylation sulfo

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Bacterial cellulose nanoparticles as a sustainable drug delivery platform for protein-based therapeutics

RSC Applied Polymers

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RSC Applied Polymers 2023年第2期2卷 172-183页

作者： Balistreri, Gabrielle N. Campbell, Ian R. Li, Xinqi Amorim, Julia Zhang, Shuai Nance, Elizabeth Roumeli, Eleftheria Molecular Engineering & Sciences Institute University of Washington Seattle 98195 WA United States Department of Materials Science and Engineering University of Washington Seattle 98195 WA United States Department of Chemical Engineering University of Washington Seattle 98195 WA United States Physical Sciences Division Pacific Northwest National Laboratory Richland 99354 WA United States Department of Biotechnology Federal Rural University of Pernambuco PE Recife 52171-900 Brazil

Sustainable nanomedicine is an emerging field aiming to address the challenges of scalability, reproducibility, thermal stability, and excessive waste generation for nanotherapeutic manufacturing. Bacterial cellulose (BC) fibers have the potential to overcome these challenges and be a versatile drug delivery platform. Here we report the development of BC nanoparticles (BCNPs) for sustainable drug delivery applications motivated by the material's biodegradability upon environmental disposal and biocompatibility, which are important properties for nanomedicine applications. In addition, BCNPs formulation has a reduced environmental impact, an overall eco-friendly life cycle, and can be implemented following green engineering principles. In this study, we fabricated BCNPs grown in a kombucha medium in agitated and aerated conditions for 24 h and size separated using centrifugation and polysorbate 80 as a surfactant. The produced particles are approximately 100 nm in diameter and have a slightly negative zeta-potential and predominantly amorphous morphology. We also investigated the growth of BC fibers after 1, 3, and 5 days and evaluated the BC's time-dependent physicochemical properties using X-ray diffraction, Fourier transform infrared spectroscopy, and thermogravimetric analysis. We report primarily amorphous BCNPs obtained after culturing for 1 day, while longer culture duration leads to larger BC particles comprised of fibers with increasing degree of crystallinity. Moreover, we show BCNPs are thermally stable up to 90 °C. We performed proof of concept studies to show drug loading capability by incorporating bovine serum albumin (BSA) as a model drug and quantified sustained release of BSA. These results further motivate the use of BCNPs as a promising nanotherapeutic platform. © 2024 RSC.

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Cobalt phthalocyanine-based conjugated polymer as efficient and exclusive electrocatalyst for CO_(2) reduction to ethanol

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materials Reports(Energy) 2023年第1期3卷 100-106,I0004页

作者： Dong Jiang Ran Bu Wei Xia Yichen Hu Mengchen Zhou Enqing Gao Toru Asahi Yusuke Yamauchi Jing Tang School of Chemistry and Molecular Engineering Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesEast China Normal UniversityShanghai200062China Department of Life Science&Medical Bioscience School of Advanced Science and EngineeringWaseda University2-2 Wakamatsu-choShinjukuTokyo 162-8480 Japan International Center for Materials Nanoarchitectonics(WPI-MANA) National Institute for Materials Science(NIMS)1-1 NamikiTsukuba305-0044IbarakiJapan Australian Institute for Bioengineering and Nanotechnology(AIBN) The University of QueenslandBrisbane4072QueenslandAustralia Institute of Eco-Chongming Shanghai202162China

Electrocatalytic conversion of carbon dioxide to high value-added chemicals is a promising method for solving the energy crisis and global *** active metal-containing conjugated polymers have been widely studied for heterogeneous carbon dioxide *** the present contribution,we designed and synthesized a stable cobalt phthalocyanine-based conjugated polymer,named CoPPc-TFPPy-CP,and also explored its electro-catalytic application in carbon dioxide reduction to liquid products in an aqueous *** the catalyst,cobalt phthalocyanine acts as building blocks connected with 1,3,6,8-tetrakis(4-formyl phenyl)pyrenes via imine-linkages,leading to mesoporous formation polymers with the pore size centered at *** the central co-balt atoms shifted to a higher oxidation state after *** these chemical and structural natures,the catalyst displayed a remarkable electrocatalytic CO_(2) reduction performance with an ethanol Faradaic efficiency of 43.25%at-1.0V vs *** at the same time,the electrochemical reduction process catalyzed by cobalt phthalocyanine produced only carbon monoxide and *** the best of our knowledge,CoPPc-TFPPy-CP is the first example among organic polymers and metal-organic frameworks that produces ethanol from CO_(2) with a remarkable selectivity.

关键词： Cobalt phthalocyanine based conjugated polymer Carbon dioxide electroreduction Liquid products Ethanol

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