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3D-printed liquid metal polymer composites as NIR-responsive 4D printing soft robot

Nature Communications 2023年第1期14卷 7815页

作者： Zhang, Liwen Huang, Xumin Cole, Tim Lu, Hongda Hang, Jiangyu Li, Weihua Tang, Shi-Yang Boyer, Cyrille Davis, Thomas P. Qiao, Ruirui Australian Institute of Bioengineering & Nanotechnology The University of Queensland Brisbane 4072 QLD Australia Department of Electronic Electrical and Systems Engineering University of Birmingham Birmingham United Kingdom School of Mechanical Materials Mechatronic and Biomedical Engineering University of Wollongong Wollongong 2522 NSW Australia School of Electronics and Computer Science University of Southampton Southampton SO17 1BJ United Kingdom Cluster for Advanced Macromolecular Design School of Chemical Engineering The University of New South Wales Sydney 2052 NSW Australia

4D printing combines 3D printing with nanomaterials to create shape-morphing materials that exhibit stimuli-responsive functionalities. In this study, reversible addition-fragmentation chain transfer polymerization agents grafted onto liquid metal nanoparticles are successfully employed in ultraviolet light-mediated stereolithographic 3D printing and near-infrared light-responsive 4D printing. Spherical liquid metal nanoparticles are directly prepared in 3D-printed resins via a one-pot approach, providing a simple and efficient strategy for fabricating liquid metal-polymer composites. Unlike rigid nanoparticles, the soft and liquid nature of nanoparticles reduces glass transition temperature, tensile stress, and modulus of 3D-printed materials. This approach enables the photothermal-induced 4D printing of composites, as demonstrated by the programmed shape memory of 3D-printed composites rapidly recovering to their original shape in 60 s under light irradiation. This work provides a perspective on the use of liquid metal-polymer composites in 4D printing, showcasing their potential for application in the field of soft robots. © 2023, The Author(s).

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Thermodynamic modeling of the LiCl-KCl-LaCl3 system with Bayesian model selection and uncertainty quantification

arXiv

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arXiv 2024年

作者： Gong, Rushi Shang, Shun-Li Goncharov, Vitaliy G. Cockrell, Cillian Trachenko, Kostya Bingham, Paul A. Guo, Xiaofeng Liu, Zi-Kui Department of Materials Science and Engineering The Pennsylvania State University University ParkPA16802 United States Department of Chemistry Washington State University PullmanWA99164 United States Materials Science and Engineering Program Washington State University PullmanWA99164 United States Nuclear Futures Institute Bangor University BangorLL57 1UT United Kingdom School of Physical and Chemical Sciences Queen Mary University of London Mile End Road LondonE1 4NS United Kingdom Materials and Engineering Research Institute Sheffield Hallam University SheffieldS1 1WB United Kingdom

Chloride molten salts are increasingly used in pyroprocessing techniques for the separation of lanthanides. Understanding thermodynamic properties of these salts is essential to predict their critical characteristics and optimize the separation process. Several thermodynamic models, including the associate model, the two-sublattice ionic model, and the modified quasichemical model with quadruplet approximation (MQMQA), have been utilized in the literature to capture the complexity of molten salts. In the present work, the Bayes factor is used to guide the model selection process for thermodynamic modeling of the KCl-LaCl3 system and provide statistical comparison of various models. The results indicate that the MQMQA model is the most favorable one based on available data. The LiCl-KCl-LaCl3 system has been further modelled with uncertainty quantification (UQ) using MQMQA with the thermodynamic properties of compounds in KCl-LaCl3 predicted by the quasiharmonic approach in terms of first-principles phonon calculations as a function of temperature. The calculated phase stability shows excellent agreement with experimental data, indicating that an appropriate thermodynamic model is important for accurately predicting critical characteristics of complex molten salts. © 2024, CC BY-NC-SA.

关键词： Lithium Chloride

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Study of Duck Feather Modification using NaOH to Removal Iron in Acid Mine Drainage (AMD 5

Study of Duck Feather Modification using NaOH to Removal Iro...

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5th International Conference on Energy, Environmental and Information System, ICENIS 2020

作者： Baroroh Lili Utami, Umi Heru, Susanto Cahyono, Bambang Doctor of Scientific Environmental Science Program Diponegoro University Semarang Indonesia Department of Chemical Faculty of Engineering Diponegoro University Semarang Indonesia Department of Chemistry Faculty of Science and Mathematics Diponegoro University Semarang Indonesia

Study of duck feather modification using NaOH to removal iron in acid mine drainage (AMD) has been done. The objective of this study was to determine adsorption capacity. Modification duck feather that 2 g of duck powder was dissolved in 25 mL NaOH with a concentration of 1.00;1.25;1.50;1.75;2.00;and 2.25 % (v/v), then placed on hotplate stirrer at 50°C and stirred for 24 hours. The results showed that adsorption capacity of Fe by adsorbent of duck feather modification using NaOH optimum at concentration 1.50% and adsorption capacity before and after activation were 36.231 mg/g and 68.493 mg/g and potential to be used as an adsorbent to removal of Fe in acid mine drainage at coal mining. © The Authors, published by EDP sciences, 2020.

关键词： Sodium hydroxide

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Green-Friendly Synthesis of 1,3,5-Triazine Derivatives Using a Sonochemical Protocol

SSRN

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SSRN 2024年

作者： Kulaga, Damian Drabczyk, Anna K. Zaręba, Przemyslaw Jaśkowska, Jolanta Chrzan, Julia Greber, Katarzyna Ewa Ciura, Krzesimir Plażuk, Damian Wielgus, Ewelina Department of Organic Chemistry and Technology Faculty of Chemical Engineering and Technology Cracow University of Technology 24 Warszawska Street Cracow31-155 Poland Department of Chemical Technology and Environmental Analytics Faculty of Chemical Engineering and Technology Cracow University of Technology 24 Warszawska Street Cracow31-155 Poland Department of Physical Chemistry Faculty of Chemistry Medical University of Gdańsk 63 Gen. Hallera Alley Gdańsk80-416 Poland Laboratory of Environmental Chemoinformatics Faculty of Chemistry Medical University of Gdańsk 63 Wita Stwosza Street Gdańsk80-308 Poland University of Lodz Faculty of Chemistry Department of Organic Chemistry Laboratory of Molecular Spectroscopy 12 Tamka Street Lódź91-403 Poland Centre of Molecular and Macromolecular Studies Polish Academy of Science 112 Sienkiewicza Street Lódź90-363 Poland

1,3,5-triazine derivatives are useful compounds with potential applications in various branches of chemical industry, including pharmaceutical chemistry, cosmetic chemistry, photochemistry, and organic chemistry. Due to the growing environmental requirements on conducting efficient, economical, and safe syntheses, development of new methods for synthesizing organic compounds is highly desirable. In this publication, we present a protocol for the synthesis of 1,3,5-triazine derivatives using a sonochemical approach. In as little as 5 minutes, it is possible to obtain most of the investigated compounds with a yield of over 75%. An undeniable advantage of this method, besides its short time, is the use of water as the solvent. Furthermore, we provide examples that the sonochemical method may be more versatile than the competing microwave method. Analysis conducted using the DOZNTM 2.0 tool revealed that in terms of the 12 principles of green chemistry, the developed sonochemical method is 13 times "greener" than the classical one. Additionally, it has been demonstrated that the investigated molecules are attractive for their application as drug-like compounds. © 2024, The Authors. All rights reserved.

关键词： Sustainable chemistry

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Controllable CO adsorption determines ethylene and methane productions from CO_(2) electroreduction

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science Bulletin 2021年第1期66卷 62-68,M0004页

作者： Haipeng Bai Tao Cheng Shangyu Li Zhenyu Zhou Hao Yang Jun Li Miao Xie Jinyu Ye Yujin Ji Youyong Li Zhiyou Zhou Shigang Sun Bo Zhang Huisheng Peng State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science and Laboratory of Advanced MaterialsFudan UniversityShanghai 200438China Institute of Functional Nano&Soft Materials(FUNSOM)and Jiangsu Key Laboratory for Carbon-Based Functional Materials&Devices Soochow UniversitySuzhou 215123China Institute of Chemical Sciences and Engineering École polytechnique fédérale de LausanneLausanne 1015Switzerland State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy MaterialsCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China

Among all CO2 electroreduction products,methane(CH4)and ethylene(C_(2)H_(4))are two typical and valuable hydrocarbon products which are formed in two different pathways:hydrogenation and dimerization reactions of the same CO *** studies show that the adsorption configurations of CO intermediate determine the reaction pathways towards CH4/C_(2)H_(4).However,it is challenging to experimentally control the CO adsorption configurations at the catalyst surface,and thus the hydrocarbon selectivity is still ***,we seek to synthesize two well-defined copper nanocatalysts with controllable surface *** two model catalysts exhibit a high hydrocarbon selectivity toward either CH4(83%)or C_(2)H_(4)(93%)under identical reduction *** transmission electron microscopy and X-ray absorption spectroscopy characterizations reveal the low-coordination Cu^(0)sites and local Cu^(0)/Cu^(+)sites of the two catalysts,***-temperature programed desorption,in-situ attenuated total reflection Fourier transform infrared spectroscopy and density functional theory studies unveil that the bridge-adsorbed CO(CO_(B))on the low-coordination Cu^(0)sites is apt to be hydrogenated to CH4,whereas the bridge-adsorbed CO plus linear-adsorbed CO(CO_(B)+CO_(L))on the local Cu^(0)/Cu^(+)sites are apt to be coupled to C_(2)H_(4).Our findings pave a new way to design catalysts with controllable CO adsorption configurations for high hydrocarbon product selectivity.

关键词： CO2 electroreduction CO adsorption Hydrogenation Dimerization

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First-Attempt Application of Sponge Membrane Bioreactor Treating 3,4-Dichlorophenol Contaminated Wastewater at Different Hydraulic Retention Times

SSRN

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SSRN 2024年

作者： Nhu Nguyet, Phan Nguyen, Thi-Kim-Ngan Thuan, Ngo Thi Yen, Duong Hoang Vo, Thi-Kim-Quyen Nguyen, Thi-Yen-Phuong Bui, Xuan-Thanh Watari, Takahiro Yamaguchi, Takashi Hatamoto, Masashi Faculty of Environment University of Science Ho Chi Minh City Viet Nam Ho Chi Minh City Viet Nam Ho Chi Minh City Viet Nam School of Chemical and Environmental Engineering International University Ho Chi Minh City Viet Nam Master Program in Water Technology Reuse and Management Vietnamese German University Binh Duong Province Viet Nam Ho Chi Minh City Viet Nam Department of Civil and Environmental Engineering Nagaoka University of Technology Niigata Japan Department of Science of Technology Innovation Nagaoka University of Technology Niigata Japan

Chlorophenols (CPs) are priority pollutants which persist in the environment for up to 28 years. The release of Chlorophenol derivatives into aquatic environments poses serious risks to living beings because of their mutagenic, carcinogenic, genotoxic, and teratogenic effects. This study highlights the first application of a Sponge Membrane Bioreactor (Sponge-MBR) for treating 3,4-Dichlorophenol (3,4-DCP)-contaminated wastewater. Herein, a lab-scale Sponge-MBR was conducted to treat 3,4-DCP-contaminated wastewater at various hydraulic retention times (HRTs) ranging from 5 to 15 h in terms of organic matter and 3,4-DCP removal, and microbial community shifts. The sludge characteristics were also performed. Results showed that a rise in HRT at 5, 10 and 15 h increased the removal efficiencies of COD (84 – 94%) and 3,4-DCP (90 – 96%). Under 30-day operation period at optimal HRT (15 h), corresponding to OLR of 2.84 ± 0.18 kg COD·m-3·day-1, the removal efficiencies of both 3,4-DCP and COD were 96% with the average removal rate of 356 ± 83 mg COD·g-SS-1·day-1 and 1.62 ± 0.38 mg 3,4-DCP·g-SS-1·day -1. The attached biomass in sponge media was recorded higher than suspended biomass and contributed 49 – 66% of the total biomass, indicating that the microbial community shifts could degrade organic matter and remove 3,4-DCP. Proteobacteria dominated the microbial community because of their adaptability to environmental changes. The findings derived from this study provide useful perspectives on the application of Sponge-MBR treating 3,4-DCP-contaminated wastewater and offer Sponge-MBR as a potential alternative for treating wastewater contaminated with toxic chemicals. © 2024, The Authors. All rights reserved.

关键词： Biomass

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Emergent dimer-model topological order and quasi-particle excitations in liquid crystals: combinatorial vortex lattices

arXiv

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arXiv 2025年

作者： Meng, Cuiling Wu, Jin-Sheng Kos, Žiga Dunkel, Jörn Nisoli, Cristiano Smalyukh, Ivan I. Department of Physics and Chemical Physics Program University of Colorado BoulderCO80309 United States Hiroshima University Hiroshima Higashihiroshima Japan Department of Mathematics Massachusetts Institute of Technology CambridgeMA02139 United States Faculty of Mathematics and Physics University of Ljubljana Ljubljana Slovenia Department of Condensed Matter Physics Jožef Stefan Institute Ljubljana Slovenia Theoretical Division Physics of Condensed Matter and Complex Systems Center For Nonlinear Studies Los Alamos National Laboratory Los AlamosNM87545 United States Department of Electrical Computer and Energy Engineering Materials Science and Engineering Program University of Colorado BoulderCO80309 United States Renewable and Sustainable Energy Institute National Renewable Energy Laboratory University of Colorado BoulderCO80309 United States

Liquid crystals have proven to provide a versatile experimental and theoretical platform for studying topological objects such as vortices, skyrmions, and hopfions. In parallel, in hard condensed matter physics, the concept of topological phases and topological order has been introduced in the context of spin liquids to investigate emergent phenomena like quantum Hall effects and high-temperature superconductivity. Here, we bridge these two seemingly disparate perspectives on topology in physics. Combining experiments and simulations, we show how topological defects in liquid crystals can be used as versatile building blocks to create complex, highly degenerate topological phases, which we refer to as ‘Combinatorial Vortex Lattices’ (CVLs). CVLs exhibit extensive residual entropy and support locally stable quasi-particle excitations in the form of charge-conserving topological monopoles, which can act as mobile information carriers and be linked via Dirac strings. CLVs can be rewritten and reconfigured on demand, endowed with various symmetries, and modified through laser-induced topological surgery — an essential capability for information storage and retrieval. We demonstrate experimentally the realization, stability, and precise optical manipulation of CVLs, thus opening new avenues for understanding and technologically exploiting higher-hierarchy topology in liquid crystals and other ordered media. Copyright © 2025, The Authors. All rights reserved.

关键词： Laser surgery

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Synthesis and self-assembly of poly(ethylene glycol)-block-poly(N-3-(methylthio)propyl glycine)and their oxidation-sensitive polymersomes

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Chinese chemical Letters 2020年第7期31卷 1931-1935页

作者： Yangwei Deng Hui Chen Xinfeng Tao Sylvain Trepout Jun Ling Min-Hui Li Chimie ParisTech PSL University ParisCNRSInstitut de Recherche de Chimie ParisParis 75005France MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical TechnologyBeijing 100029China Institut Curie Inserm US43University Paris SaclayOrsay Cedex 91405France Shanghai Key Laboratory of Advanced Polymeric Materials School of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237China

Amphiphilic block copolymers poly(ethylene glycol)-block-poly(N-3-(methylthio)propyl glycine)(PEGb-PMeSPG)were synthesized via ring-opening polymerization of N-3-(methylthio)propyl glycine Nthiocarboxyanhydride(MeSPG-NTA)initiated by amino-terminated *** self-assemblies of three PEG-b-PMeSPG copolymers with different PMeSPG block lengths were first prepared by nanoprecipitation method using THF and DMF,respectively,as the organic solvent,and their morphologies were studied by Cryo-EM and *** prepare polymersomes loaded with glucose oxidase(GOx),double emulsion method followed by extrusion treatment was *** oxidation-responsive disruption of polymersomes was achieved upon the introduction of glucose because of the oxidants generated insitu by GOx/glucose.

关键词： Polypeptoid Self-assembly Polymersome Oxidation-responsive Glucose oxidase

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A functionalized metal organic framework-laden nanoporous polymer electrolyte for exceptionally stable lithium electrodeposition

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chemical Communications 2020年第99期56卷 15533-15536页

作者： Qing, Xia Li, Jiarui Wang, Zongtao Chen, Mao Lin, Jun Lin, Xinrong Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education and Yunnan Province School of Chemical Science and Technology Yunnan University Kunming 650091 China State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200433 China

A nanoporous all-solid-state MOF-laden polymer electrolyte that is simply mediated by an electronic effect shows remarkably high lithium electrodeposition stability of hundreds of charge-discharge cycles and over 1500 operating hours, while maintaining a very small voltage polarization. This result is a significant improvement relative to conventional PEO and, when used in an all-solid-state battery (ASSB), this electrolyte enabled enhanced cycle life. This new all-solid-state electrolyte shows a promising rational design for the emerging microporous polymeric materials as novel SPEs in ASSBs. This journal is © 2020 The Royal Society of Chemistry.

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Current Progress of COPD Early Detection: Key Points and Novel Strategies

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International Journal of COPD 2023年 18卷 1511-1524页

作者： Lin, Ching-Hsiung Cheng, Shih-Lung Chen, Chiung-Zuei Chen, Chia-Hung Lin, Sheng-Hao Wang, Hao-Chien Division of Chest Medicine Changhua Christian Hospital Changhua 500 Taiwan Institute of Genomics and Bioinformatics National Chung Hsing University Taichung 402 Taiwan Ph.D. Program in Translational Medicine National Chung Hsing University Taichung Taiwan Department of Recreation and Holistic Wellness MingDao University Changhua Taiwan Department of Internal Medicine Far Eastern Memorial Hospital Taipei 220 Taiwan Department of Chemical Engineering and Materials Science Yuan Ze University Taoyuan 320 Taiwan Division of Pulmonary Medicine Department of Internal Medicine National Cheng Kung University Hospital College of Medicine National Cheng Kung University Tainan Taiwan Division of Pulmonary and Critical Care Medicine Department of Internal Medicine China Medical University Hospital Taichung 404 Taiwan Department of Internal Medicine National Taiwan University Hospital Taipei 100 Taiwan

Chronic obstructive pulmonary disease (COPD) is a major cause of morbidity and mortality worldwide, with approxi-mately 70% to 80% of adults with COPD being undiagnosed. Patients with undiagnosed COPD are at increased risk of poor outcomes and a worsened quality of life, making early detection a crucial strategy to mitigate the impact of COPD and reduce the burden on healthcare systems. In the past decade, increased interest has been focused on the development of effective strategies and instrument for COPD early detection. However, identifying undiagnosed cases of COPD is still challenging. Both screening and case-finding approaches have been adopted to identify undiagnosed COPD, with case-finding being recommended by the 2023 Global Initiative for Chronic Obstructive Lung Disease (GOLD) guideline and the updated United States Preventive Services Task Force (USPTF) recommendation. Nonetheless, the approaches, criteria, and instruments used for early detection of COPD are varied. However, advances in the taxonomy and risk factors of COPD are continuously being investigated. It is important to continuously assess the current state of knowledge on COPD early detection, given the challenges associated with identifying undiagnosed COPD. This review aims to highlight recent advances in early detection of COPD. To discuss the current challenge and opportunity in COPD early detection, providing an overview of existing literature on COPD case-finding strategies, including the approaches, criteria for subjects, and instruments. The review also summarizes the current progress in COPD case-findings and proposes a COPD case-finding flowchart as an efficient method for identifying at risk COPD patients. © 2023 Lin et al.

关键词： at-risk case-finding COPD early detection undiagnosed

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