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arXiv 2018年

作者： Rock, William Qiao, Baofu Zhou, Tiecheng Clark, Aurora E. Uysal, Ahmet Argonne National Laboratory Chemical Sciences and Engineering Division United States ArgonneIL60439 United States Department of Chemistry and Material Science and Engineering Program United States Washington State University PullmanWA99164 United States

Ion hydration and interfacial water play crucial roles in numerous phenomena ranging from biological to industrial systems. Although biologically relevant (and mostly smaller) ions have been studied extensively in this context, very little experimental data exist about molecular scale behavior of heavy ions and their complexes at interfaces, especially under technologically significant conditions. It has recently been shown that PtCl62-complexes adsorb at positively charged interfaces in a two-step process that cannot fit into well-known empirical trends, such as Hofmeister series. Here, a combined vibrational sum frequency generation and molecular dynamics study reveals that a unique interfacial water structure is connected to this peculiar adsorption behavior. A novel sub-ensemble analysis of MD simulation results show that after adsorption, PtCl62-complexes partially retain their first and second hydration spheres, and it is possible to identify three different types of water molecules around them based on their orientational structures and hydrogen bonding strengths. These results have important implications for relating interfacial water structure and hydration enthalpy to the general understanding of specific ion effects. This in turn influences interpretation of heavy metal ion distribution across and reactivity within, liquid interfaces. Copyright © 2018, The Authors. All rights reserved.

关键词： Molecules

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Adaptive in vivo Device for Theranostics of Inflammation by Monitoring of Cytokine Interferon-γ and Its Triggered Aspirin Release

SSRN

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SSRN 2019年

作者： Cao, Chaomin Jin, Ronghua Wei, Hui Liu, Zhongning Ni, Shengnan Chen, Xin Young, Howard A. Liu, Guojun Liu, Guozhen International Joint Research Center for Intelligent Biosensor Technology and Health Central China Normal University Wuhan430079 China School of Chemical Engineering and Technology Shanxi Key Laboratory of Energy Chemical Process Intensification Institute of Polymer Science in Chemical Engineering Xi’an Jiao Tong University Xi’an710049 China Department of Prosthodontics Peking University School and Hospital of Stomatology National Clinical Research Center for Oral Diseases National Engineering Laboratory for Digital and Material Technology of Stomatology Beijing Key Laboratory of Digital Stomatology Beijing100081 China Australian Nuclear Science and Technology Organization New Illuwarra Road Lucas HeightsNSW2234 Australia Graduate School of Biomedical Engineering ARC Centre of Excellent for Nanoscale Bipphotonics Faculty of Engineering University of New South Wales SydneyNSW2052 Australia Cancer and Inflammation Program Center for Cancer Research National Cancer Institute at Frederick FrederickMD21702 United States

Cytokines mediate and control immune and inflammatory responses. Complex interactions exist between cytokines, inflammation and the adaptive responses in maintaining homeostasis, health, and well being. On-demand, local delivery of anti-inflammatory drug molecules to target tissues provides a means for effective drug dosing while reducing the adverse effects of systemic drug delivery. This work demonstrates a proof-of-concept theranostic approach for inflammation based on analyte-kissing induced signaling, whereby a drug (in this report, aspirin) can be released upon detection of a target level of a proinfammatory cytokine(i.e. Interferon-γ (IFN-γ)) in real time. The structure-switching aptamer based biosensor described here is capable of quantitatively and dynamically detecting IFN-γ both in vitro and in vivo with a sensitivity of 10 pg mL-1. Moreover, the released aspirin triggered by the inflammatory cytokine IFN-γ is able to inhibit inflammation in the inflammatory rat model, and the releasing of aspirin can be quantitatively controlled. Herein research provides a novel and promising strategy for in vivo detection of proinflammatory cytokines and the subsequent therapeutic delivery of anti-inflammatory molecules. This universal theranostic platform is expected to achieve great potentials on personalized medicine towards treatment of various of diseases and health conditions. © 2019, The Authors. All rights reserved.

关键词： Pathology

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Morphology and filtration performances of polyether sulfone membrane modified with carbon and Fe2O3

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IOP Conference Series: materials Science and engineering 2020年第1期845卷

作者： R. Arisandi A Fathurrahman A. Fahrina F Razi Z Jalil N Arahman Department of Chemical Engineering Universitas Syiah Kuala Banda Aceh 23111 Indonesia Magister Program of Chemical Engineering Department of Chemical Engineering Universitas Syiah Kuala Banda Aceh 23111 Indonesia Doctor of Engineering Graduate School of Engineering Universitas Syiah Kuala Banda Aceh 23111 Indonesia Material Physics Laboratory Department of Physics Faculty of Mathematics and Natural Science SyiahKuala University Banda Aceh Indonesia Graduate School of Environmental Management Universitas Syiah Kuala Jl. Tgk Chik Pante Kulu No. 5 Darussalam Banda Aceh 23111 Indonesia Research center for environmental and natural resources Universitas Syiah Kuala Jl. Hamzah Fansuri No. 4 Darussalam Banda Aceh 23111 Indonesia Atsiri Research Center Universitas Syiah Kuala Banda Aceh 23111 Indonesia

Membrane separation technology has been widely applied in various industrial sectors. Some modification on membrane composition and structure is conducted to improve membrane filtration performance and mitigate fouling phenomena. Fouling on membrane surfaces lead to decrease permeabilty, increase energy consumtion, and shorten membrane life time. The aim of this study is to manufacture PES membrane which involved inorganic additives consits of Carbon and Fe2O3 particles to mitigate fouling tendency. All of membranes were prepared using phase inversion method with dissolving PES polymer into dimethyl formamide (DMF). The result membranes were characterized using Scanning Electron Microscopy (SEM) to investigate morphological structure and breaking strength to determine mechanical property. Membrane filtration performance were tested using soy protein solution in cross-flow system. The results showed that the addition of inorganic particles in PES membrane caused the increasing of pores which lead to increase pure water flux from 15.14 L/m2.h to 58.67 L/m2.h. Fouling mitigation test towards soy protein also showed that carbon and Fe2O3 particles enhanced membrane flux recovery ratio from 64.5 to 76%. Furthermore, the inorganic particles presence in PES membrane also improved the tensile strength of membrane up to 128 Mpa.

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Metallo-Helicoid with Double Rims: Polymerization Followed by Folding by Intramolecular Coordination

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Angewandte Chemie 2020年第3期133卷

作者： Dr. Guang-Qiang Yin Sneha Kandapal Chung-Hao Liu Dr. Heng Wang Dr. Jianxiang Huang Shu-Ting Jiang Tan Ji Yu Yan Sandra Khalife Dr. Ruhong Zhou Dr. Libin Ye Dr. Bingqian Xu Dr. Hai-Bo Yang Dr. Mu-Ping Nieh Dr. Xiaopeng Li College of Chemistry and Environmental Engineering Shenzhen University Shenzhen Guangdong 518055 China Single Molecule Study Laboratory College of Engineering and Nanoscale Science and Engineering Center University of Georgia Athens GA 30602 USA Department of Chemical and Biomolecular Engineering University of Connecticut Storrs CT 06269 USA Institute of Quantitative Biology Zhejiang University Hangzhou Zhejiang 310027 China Shanghai Key Laboratory of Green Chemistry and Chemical Processes Department of Chemistry East China Normal University Shanghai 200062 China Department of Chemistry University of South Florida Tampa FL 33620 USA Department of Cell Biology Microbiology and Molecular Biology University of South Florida Tampa FL 33620 USA Polymer Program Institute of Material Science University of Connecticut Storrs CT 06269 USA

In this study, we established a feasible strategy to construct a new type of metallo-polymer with helicoidal structure through the combination of covalent polymerization and intramolecular coordination-driven self-assembly. In the design, a tetratopic monomer ( M ) was prepared with two terminal alkynes in the outer rim for polymerization, and two terpyridines (TPYs) in the inner rim for subsequent folding by selective intramolecular coordination. Then, the linear covalent polymer ( P ) was synthesized by polymerization of M via Glaser-Hay homocoupling reaction. Finally, intramolecular coordination interactions between TPYs and Zn(II) folded the backbone of P into a right- or left-handed metallo-helicoid ( H ) with double rims. Owing to multiple positive charges on the inner rim of helicoid, double-stranded DNA molecules (dsDNA) could interact with H through electrostatic interactions. Remarkably, dsDNA allowed exclusive formation of H with right handedness by means of chiral induction.

关键词： coordination-driven self-assembly helicoid metallo-polymers terpyridine tetraphenylethylene

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Revealing the Side-Chain-Dependent Ordering Transition of Highly Crystalline Double-Cable Conjugated Polymers

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Angewandte Chemie 2021年第48期133卷

作者： Guitao Feng Wenliang Tan Safakath Karuthedath Cheng Li Xuechen Jiao Amelia C. Y. Liu Hariprasad Venugopal Zheng Tang Long Ye Frédéric Laquai Christopher R. McNeill Weiwei Li Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China Department of Materials Science and Engineering Monash University Wellington Road Clayton Victoria 3800 Australia King Abdullah University of Science and Technology (KAUST) KAUST Solar Center (KSC) Physical Sciences and Engineering Division (PSE) Material Science and Engineering Program (MSE) Thuwal 23955-6900 Kingdom of Saudi Arabia School of Physics and Astronomy Monash University Wellington Road Clayton Victoria 3800 Australia Ramaciotti Centre for Cryo-Electron Microscopy Monash University Clayton Victoria 3800 Australia Center for Advanced Low-dimension Materials College of Materials Science and Engineering Donghua University Shanghai 201620 P. R. China School of Materials Science and Engineering Tianjin Key Laboratory of Molecular Optoelectronic Science Tianjin University Tianjin 300350 P. R. China

We developed a series of highly crystalline double-cable conjugated polymers for application in single-component organic solar cells (SCOSCs). These polymers contain conjugated backbones as electron donor and pendant perylene bisimide units (PBIs) as electron acceptor. PBIs are connected to the backbone via alkyl units varying from hexyl (C 6 H 12 ) to eicosyl (C 20 H 40 ) as flexible linkers. For double-cable polymers with short linkers, the PBIs tend to stack in a head-to-head fashion, resulting in large d -spacings (e.g. 64 Å for the polymer P12 with C 12 H 24 linker) along the lamellar stacking direction. When the length of the linker groups is longer than a certain length, the PBIs instead adopt a more ordered packing likely via H -aggregation, resulting in short d -spacings (e.g. 50 Å for the polymer P16 with C 16 H 32 linker). This work highlights the importance of linker length on the molecular packing of the acceptor units and the influences on the photovoltaic performance of SCOSCs.

关键词： cryo-transmission electron microscopy double-cable conjugated polymers lamellar stacking single-component organic solar cells

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In vitro and in vivo models for assessing the host response to biomaterials

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Drug Discovery Today: Disease Models 2017年 24卷 13-21页

作者： Saleh, Leila S. Bryant, Stephanie J. Department of Chemical and Biological Engineering University of Colorado 3415 Colorado Avenue Boulder 80309 CO United States BioFrontiers Institute University of Colorado 3415 Colorado Avenue Boulder 80309 CO United States Material Science and Engineering Program University of Colorado 3415 Colorado Avenue Boulder 80309 CO United States

The foreign body response (FBR) occurs ubiquitously to essentially all non-biological materials that are implanted into higher organisms. The FBR is characterized by inflammation followed by fibrosis and is mediated largely by macrophages. While many current medical devices tolerate the FBR, the FBR is responsible for many asceptic device failures and is hindering advancements of new devices that rely on device-host communication to function. To this end, in vitro and in vivo models are critical to studying how a biomaterial, via its chemistry and properties, affect the FBR. This short review highlights the main in vitro and in vivo models that are used to study the FBR. In vitro models that capture macrophage interrogation of a biomaterial and evaluation of macrophage attachment, polarization and fusion are described. In vivo models using rodents, which provide a relatively simple model of the complex FBR process, and human-relevant nonhuman primate models are described. Collectively, the combination of in vitro and in vivo models will help advance our fundmental understanding of the FBR and enable new biomaterials to be developed that can effectively modulate the FBR to achieve a desire device-host outcome. © 2018 Elsevier Ltd

关键词： In vivo In vitro Macrophages Immune Response Biocompatible materials Fast nuclear reactors Device Failure

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Miscibility‐Controlled Phase Separation in Double‐Cable Conjugated Polymers for Single‐Component Organic Solar Cells with Efficiencies over 8 %

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Angewandte Chemie 2020年第48期132卷

作者： Xudong Jiang Jinjin Yang Safakath Karuthedath Junyu Li Wenbin Lai Cheng Li Chengyi Xiao Long Ye Zaifei Ma Zheng Tang Frédéric Laquai Weiwei Li Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China Center for Advanced Low-dimension Materials College of Materials Science and Engineering Donghua University Shanghai 201620 P. R. China King Abdullah University of Science and Technology (KAUST) KAUST Solar Center (KSC) Physical Sciences and Engineering Division (PSE) Material Science and Engineering Program (MSE) Thuwal 23955-6900 Kingdom of Saudi Arabia School of Materials Science and Engineering Tianjin Key Laboratory of Molecular Optoelectronic Science Tianjin University Tianjin 300350 P. R. China Institute of Applied Chemistry Jiangxi Academy of Sciences Nanchang 330096 P. R. China

A record power conversion efficiency of 8.40 % was obtained in single‐component organic solar cells (SCOSCs) based on double‐cable conjugated polymers. This is realized based on exciton separation playing the same role as charge transport in SCOSCs. Two double‐cable conjugated polymers were designed with almost identical conjugated backbones and electron‐withdrawing side units, but extra Cl atoms had different positions on the conjugated backbones. When Cl atoms were positioned at the main chains, the polymer formed the twist backbones, enabling better miscibility with the naphthalene diimide side units. This improves the interface contact between conjugated backbones and side units, resulting in efficient conversion of excitons into free charges. These findings reveal the importance of charge generation process in SCOSCs and suggest a strategy to improve this process: controlling miscibility between conjugated backbones and aromatic side units in double‐cable conjugated polymers.

关键词： double-cable conjugated polymers miscibility naphthalene diimide phase separation single-component organic solar cells

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Reduction performances of organic sludges from an industrial region of Taiwan by using ultrasonic wave and biotreatment technology

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IOP Conference Series: Earth and Environmental Science 2019年第5期227卷

作者： Yung-Pin Tsai Chen-Chiang Chou Wei-Ting Chen Shing-Der Chen Department of Civil Engineering National Chi Nan University Nantou Hsien 545 Taiwan Doctoral Program Department of Civil Engineering National Chi Nan University Nantou Hsien 545 Taiwan Department of Cosmetic Application & Management St. Mary's Junior College of Medicine Nursing and Management Yilan 266 Taiwan Div. of Water Technology Research Material and Chemical Research Laboratories Industrial Technology Research Institute Hsinchu 300 Taiwan

Economic growth arises fast in Taiwan because of the rapid development of industry, and many problems of environmental pollutions occur consequently. Wastewater and polluted water are the major pollutants occurred in the environment. As the result, plenty of researches related to wastewater reduction and treatment are developed to resolve the problem of wastewater production. The problem of wastewater production has been reduced after wastewater treatment tests have been used. However, the production of sludge increases accompanying with the volume of wastewater treatment, which causes numerous costs generated for dealing with sludge treatment. In general, successful technics involved in industrial sludge reduction are divided into five methods, including physical, chemical, biological, sludge hydrolysis, and a combination of the above methods. This study developed a method for sludge reduction by using ultrasonic technic with low consumed energy, combined with biotreatment (active sludge process) to conduct tests of organic sludge reduction in one industrial area of Taiwan. There is no use of chemicals on tests of organic sludge reduction, which resulted in no second pollutants generated by the application of ultrasonic technic, and organic sludges can be reduced. The results of the pilot and laboratory tests showed above 40% of sludge reduction, and this method was available to apply on the real filed operation.

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An eco-friendly preparation of cellulose nano crystals from oil palm empty fruit bunches

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IOP Conference Series: Earth and Environmental Science 2018年第1期105卷

作者： Arie Wibowo Haroki Madani Hermawan Judawisastra Elvi Restiawaty Chrisella Lazarus Yogi W. Budhi Material Engineering Study Program Institut Teknologi Bandung Jl. Ganesha 10 Bandung Indonesia Chemical Engineering Study Program Institut Teknologi Bandung Jl. Ganesha 10 Bandung Indonesia Bioenergy and Chemurgy Engineering Institut Teknologi Bandung Jl. Ganesha 10 Bandung Indonesia

Cellulose Nanocrystals (CNCs) have attracted a lot of attention as one of the promising green nanomaterials because of their interesting properties such as low density, high mechanical properties, high surface area, high biocompatibility and low toxicity. However, sulphuric acids is generally used in conventional method to prepare CNCs which is highly corrosive and harmful to environment. Replacing sulphuric acid with Ammonium Persulfate (APS), which possess lower toxicity, are desirable from environment point of view. In this research, preparation of CNCs from Oil Palm Empty Fruit Bunches (OPEFB) as alternative raw materials and using APS is reported. Three kinds of method were carried out before applying APS solution: (i) without pre-treatment, (ii) with alkali pre-treatment and (iii) with alkali-chloride pre-treatment. White-colored sample with crystallinity reaching 78% (XRD result) and particle size ranging between 31-113 nm (DLS result) was obtained. Those results implied that there were potential existence of CNCs in the samples.

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Double-Cable Conjugated Polymers with Pendent Near-Infrared Electron Acceptors for Single-Component Organic Solar Cells

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Angewandte Chemie 2022年第35期134卷

作者： Shijie Liang Baiqiao Liu Dr. Safakath Karuthedath Jing Wang Dr. Yakun He Wen Liang Tan Hao Li Prof. Yunhua Xu Prof. Ning Li Prof. Jianhui Hou Prof. Zheng Tang Prof. Frédéric Laquai Prof. Christopher R. McNeill Prof. Christoph J. Brabec Prof. Weiwei Li Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China Contribution: Data curation (lead) Formal analysis (lead) Investigation (equal) Writing - original draft (supporting) Writing - review & editing (supporting) Department of Chemistry School of Science Beijing Jiaotong University Beijing 100044 P. R. China KAUST Solar Center (KSC) Physical Sciences and Engineering Division (PSE) Material Science and Engineering Program (MSE) King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia Contribution: Data curation (supporting) Formal analysis (supporting) Investigation (supporting) Writing - original draft (supporting) Writing - review & editing (supporting) Center for Advanced Low-dimension Materials College of Materials Science and Engineering Donghua University Shanghai 201620 P. R. China Contribution: Data curation (supporting) Formal analysis (supporting) Investigation (supporting) Methodology (supporting) Writing - review & editing (supporting) Institute of Materials for Electronics and Energy Technology (i-MEET) Friedrich-Alexander-Universität Erlangen-Nürnberg Martensstrasse 7 91058 Erlangen Germany Contribution: Data curation (supporting) Formal analysis (supporting) Investigation (supporting) Methodology (supporting) Writing - original draft (supporting) Writing - review & editing (supporting) Department of Materials Science and Engineering Monash University Wellington Road Clayton Victoria 3800 Australia State Key Laboratory of Polymer Physics and Chemistry Beijing National Laboratory for Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China Contribution: Data curation (supporting) Formal analysis (supporting) Writing - review & editing (supporting) Contribution: Funding acquisition (supporting) Writing - review & editing (supportin

Double-cable conjugated polymers with near-infrared (NIR) electron acceptors are synthesized for use in single-component organic solar cells (SCOSCs). Through the development of a judicious synthetic pathway, the highly sensitive nature of the 2-(3-oxo-2,3-dihydroinden-1-ylidene)malononitrile (IC)-based electron acceptors in basic and protonic solvents is overcome. In addition, an asymmetric design motif is adopted to optimize the packing of donor and acceptor segments, enhancing charge separation efficiency. As such, the new double-cable polymers are successfully applied in SCOSCs, providing an efficiency of over 10 % with a broad photo response from 300 to 850 nm and exhibiting excellent thermal/light stability. These results demonstrate the powerful design of NIR-acceptor-based double-cable polymers and will enable SCOSCs to enter a new stage.

关键词： Double-Cable Conjugated Polymers Electron Acceptors Near Infrared Single Component Solar Cells

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