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Genetically engineered materials:Proteins and beyond

science China Chemistry 2022年第3期65卷 486-496页

作者： Jingjing Wei Lianjie Xu Wen-Hao Wu Fei Sun Wen-Bin Zhang College of Chemical and Environmental Engineering Anyang Institute of TechnologyAnyang 455000 China 2.Beijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry&Physics of Ministry of EducationCenter for Soft Matter Science and EngineeringCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871 China 3.Department of Chemical and Biological Engineering The Hong Kong University of Science and TechnologyClear Water BayKowloonHong Kong SARChina

Information-rich molecules provide opportunities for *** engineered materials are superior in that their properties are coded within genetic sequences and could be *** this review,we elaborate the concept of genetically engineered materials(GEMs)using examples ranging from engineered protein materials to engineered living *** materials are the materials of choice by *** progress in protein engineering has led to opportunities to tune their sequences for optimal material *** also play a central role in living materials where they act in concert with other biological components as well as nonbiological cofactors,giving rise to living *** the existing GEMs are often limited to those constructed by building blocks of biological origin,being genetically engineerable does not preclude nonbiologic or synthetic materials,the latter of which have yet to be fully explored.

关键词： protein genetic engineering self-assembly living materials

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Fabrication of Polyamide 6-based CFRP with Water Resistance via T-RTM Process and Fluorinated Polydopamine Coating 23

Fabrication of Polyamide 6-based CFRP with Water Resistance ...

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23rd International Conference on Composite Materials, ICCM 2023

作者： Son, Seung Mo Kim, Minjung Yoo, Jung Jae Kim, Min Seong Kim, Byeong-Su Seong, Dong Gi School of Chemical Engineering Pusan National University Korea Republic of Department of Chemistry Yonsei University Korea Republic of Department of Polymer Science and Engineering Pusan National University Korea Republic of Polymer Composite Laboratory Pusan National University Busan Korea Republic of

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Ternary structured magnesium cobalt oxide/graphene/polycarbazole nanohybrids for high performance electrochemical supercapacitors

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Materials science for Energy Technologies 2023年第1期6卷 399-408页

作者： Babu, Akhil Somesh, T.E. Ani Dechamma, C.D. Hemavathi, A.B. Kakarla, Raghava Reddy Kulkarni, Raghavendra V. Raghu, Anjanapura V. Department of Polymer Science and Technology Sri Jayachamarajendra College of Engineering JSS Science and Technology University Karnataka Mysore570006 India School of Chemical and Biomolecular Engineering The University of Sydney SydneyNSW2006 Australia Department of Pharmaceutics BLDEA's SSM College of Pharmacy and Research Centre Karnataka Vijayapur586 103 India Vijayapura586 103 India

In the present work, polycarbazole (PCz)/magnesium cobalt oxide (MgCo2O4)/reduced graphene oxide (RGO) based ternary nanocomposite was prepared through in-situ polymerization, and utilized it as an active electrodes for electrochemical energy storage supercapacitor applications. The electrochemical behaviour of PCz and its nanocomposites were investigated by measuring specific capacitance using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and Galvanostatic charge–discharge (GCD) analysis. The PCz/MgCo2O4/RGO hybrids exhibited higher capacitance (548.54 F/g) than that of PCz (117.65 F/g) and PCz/MgCo2O4 (482.92 F/g) at the scan rate of 50 mV/s, as determined by CV method. The enhanced supercapacitance indicates high power and energy storage capabilities of the ternary metal oxide-graphene based polycarbazole nanocomposites. Electrochemical impedance spectroscopy confirmed low solution resistance of PCz/MgCo2O4/RGO. Thermogravimetric analysis affirmed the increased thermal stability of PCz/MgCo2O4/RGO composite compared to that of pure polycarbazole and PCz/MgCo2O4 nanocomposite. The scanning electron micrographs of nanocomposite confirmed the successful incorporation of nanofillers into the PCz matrix. On the basis of the research findings, PCz/MgCo2O4/RGO can be expected to be a promising electrode active material for high performance energy storage supercapacitors. © 2023

关键词： Cobalt compounds

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Explosion and health hazards caused by dust during coal mining and their prevention strategies

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Discover chemical engineering 2025年第1期5卷 1-15页

作者： Rashid, Muhammad Imran Athar, Muhammad Iqbal, Muhammad Waqas Shahzad, Hafiz Khurram Mobeen, Ayesha Asif, Mahnoor Department of Chemical Polymer and Composite Materials Engineering University of Engineering and Technology (New Campus) Lahore Pakistan Department of Chemical Engineering Muhammad Nawaz Sharif University of Engineering and Technology Multan Pakistan Department of Basic Science and Humanities University of Engineering and Technology (New Campus) Lahore Pakistan

The world’s energy supplies depend on a scale of high significance upon the coal industry. Nevertheless, as with any other case, some safety issues require urgent response, for example, coal dust explosion accidents. A total of one hundred and six coal dust explosions during mining, particularly in China, were reported during past 60 years. Coal dust also cause deleterious health effects, causing multiple diseases such as pneumoconiosis, chronic obstructive pulmonary disease (COPD), rhinitis, asthma, extrinsic allergic alveolite (EAA), fibrosing alveolitis, cancers, heart disease, visual disturbances namely cataract formation and irritation, skin problems and many more. Dust hazard analysis (DHA) methodology, dust control, dust accidents and much more is covered in this article. A literature analysis on dust explosion hazards during coal mining has been presented in this work that depicts, that most of the literature covers dust hazards of coal mining industry. A guideline regarding enhancement of safety during coal mining is presented in this work both to avoid the dust explosion scenarios and adverse health impacts of coal dust that might be helpful for coal mining industries.

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Transferrin-Mediated Nanophotosensitizer to Enhance Phototherapy with Photoacoustic Imaging Under Hypoxia

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CCS Chemistry 2025年第4期7卷 1127-1141页

作者： Mengyao Yang Yunyoung Nah Donghyeon Oh Xingshu Li Heejeong Kim Sinyoung Park Junha Lim Aibing Chen Chulhong Kim Won Jong Kim Juyoung Yoon College of Chemical and Pharmaceutical Engineering Hebei University of Science and TechnologyShijiazhuang 050018 Department of Chemistry and Nanoscience Ewha Womans UniversitySeoul 03760 Department of Chemistry POSTECH-Catholic Biomedical Engineering InstitutePOSTECHPohang 37673 Department of Electrical Engineering Convergence IT EngineeringMechanical Engineeringand Medical Science and EngineeringMedical Device Innovation CenterPOSTECHPohang 37673 Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy College of ChemistryFuzhou UniversityFuzhou 350108 School of Interdisciplinary Bioscience and Bioengineering POSTECHPohang 37673 Graduate Program in Innovative Biomaterials Convergence Ewha Womans UniversitySeoul 03760

Various obstacles[poor tissue penetration,hypoxic tumor microenvironment,and reactive oxygen species(ROS)production quenching due to aggregation]obstruct imaging-guided high-efficiency phototherapy targeting ***,nanophthalocyanine(ZnPcN4-TF)is elaborately designed based on a synthetic phthalocyanine derivative(ZnPcN4)and nonimmunogenic transferrin(TF)through multiple noncovalent interactions for photoacoustic(PA)imaging-guided *** conjugating electron-rich amino groups effectively suppressed fluorescence and ROS generation due to the strong photoinduced electron transfer effect,ZnPcN4 became an ideal photothermal and PA imaging ***4-TF not only effectively targeted tumor sites and accumulated there,but also,surprisingly,facilitated the enhancement of ROS production via a type I process in an aggregate compared to ZnPcN4 itself,potentially due to accelerated electron ***,ZnPcN4-TF had a substantially more powerful photothermal effect than ZnPcN4 ***,this design effectively overcomes the obstacles to photodynamic therapy(aggregation-related ROS generation quenching in a hypoxic environment).Furthermore,PA imaging solves the tissue penetration challenge in optical *** study provides a broader base for designing novel photosensitizers to improve phototherapy under hypoxia.

关键词： photoacoustic imaging type I reactive oxygen species photothermal effect tumor accumulation self-assembly

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AI for organic and polymer synthesis

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science China Chemistry 2024年第8期67卷 2461-2496页

作者： Xin Hong Qi Yang Kuangbiao Liao Jianfeng Pei Mao Chen Fanyang Mo Hua Lu Wen-Bin Zhang Haisen Zhou Jiaxiao Chen Lebin Su Shuo-Qing Zhang Siyuan Liu Xu Huang Yi-Zhou Sun Yuxiang Wang Zexi Zhang Zhunzhun Yu Sanzhong Luo Xue-Feng Fu Shu-Li You Center of Chemistry for Frontier Technologies Department of ChemistryZhejiang UniversityHangzhou 310027China Center of Basic Molecular Science Department of ChemistryTsinghua UniversityBeijing 100084China Guangzhou National Laboratory Guangzhou 510005China Center for Quantitative Biology Academy for Advanced Interdisciplinary StudiesPeking UniversityBeijing 100871China State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular ScienceFudan UniversityShanghai 200433China School of Materials Science and Engineering Peking UniversityBeijing 100871China Beijing National Laboratory for Molecular Sciences Center for Soft Matter Science and EngineeringKey Laboratory of Polymer Chemistry and Physics of Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China AI for Science(AI4S)-Preferred Program Shenzhen Graduate SchoolPeking UniversityShenzhen 518055China State Key Laboratory of Chemical Biology Shanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai 200032China Department of Chemical Sciences National Natural Science Foundation of ChinaBeijing 100085China State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China

Recent years have witnessed the transformative impact from the integration of artificial intelligence with organic and polymer synthesis. This synergy offers innovative and intelligent solutions to a range of classic problems in synthetic chemistry. These exciting advancements include the prediction of molecular property, multi-step retrosynthetic pathway planning, elucidation of the structure-performance relationship of single-step transformation, establishment of the quantitative linkage between polymer structures and their functions, design and optimization of polymerization process, prediction of the structure and sequence of biological macromolecules, as well as automated and intelligent synthesis platforms. Chemists can now explore synthetic chemistry with unprecedented precision and efficiency, creating novel reactions, catalysts, and polymer materials under the datadriven paradigm. Despite these thrilling developments, the field of artificial intelligence(AI) synthetic chemistry is still in its infancy, facing challenges and limitations in terms of data openness, model interpretability, as well as software and hardware support. This review aims to provide an overview of the current progress, key challenges, and future development suggestions in the interdisciplinary field between AI and synthetic chemistry. It is hoped that this overview will offer readers a comprehensive understanding of this emerging field, inspiring and promoting further scientific research and development.

关键词： organic synthesis polymer synthesis machine learning prediction chemical database automated synthesis

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High-throughput design of perpendicular magnetic anisotropy at quaternary Heusler and MgO interfaces

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npj Computational Materials 2023年第1期9卷 1084-1091页

作者： Sicong Jiang Kesong Yang Department of Nano and Chemical Engineering University of California San DiegoLa JollaCA 92093-0448USA Program of Materials Science and Engineering University of California San DiegoLa JollaCA 92093-0418USA Center for Memory and Recording Research University of California San DiegoLa JollaCA 92093-0401USA

Heusler alloys combined with MgO interfaces exhibit interfacial perpendicular magnetic anisotropy, making them attractive forenergy-efficient spintronic technologies. However, finding suitable Heusler/MgO heterostructures with desired properties ischallenging due to the vast range of compositions available and the complexity of interfacial structures, particularly for theemerging quaternary Heusler compounds. In this study, we report a high-throughput screening of quaternary-Heusler/MgOheterostructures for spintronic applications. By analyzing various materials descriptors, including formation energy, convex hulldistance, magnetic ordering, lattice misfit, magnetic anisotropy constant, tunnel magnetoresistance, Curie temperature, and atomicsite disordering, we identified 5 promising compounds out of 27,000 quaternary Heusler compounds. These compounds, namelyIrCrAlTi, IrCrGaTi, IrMnZnTi, OsCrAlTa, and TaGaOsCr, show potential for designing energy-efficient perpendicular magnetic tunneljunctions. This work demonstrates an efficient approach using open quantum materials repositories, effective materials descriptors,and high-throughput computational techniques to accelerate the discovery of quaternary-Heusler-based functional materials.

关键词： quaternary anisotropy magnetic

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Thermally Drawn Multi‑material Fibers Based on polymer Nanocomposite for Continuous Temperature Sensing

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Advanced Fiber Materials 2023年第5期5卷 1712-1724页

作者： Woo Mi Ryu Yunheum Lee Yeonzu Son Geonho Park Seongjun Park Department of Bio and Brain Engineering Korea Advanced Institute of Science and Technology(KAIST)Daejeon 34141South Korea Program of Brain and Cognitive Engineering Korea Advanced Institute of Science and Technology(KAIST)Daejeon 34141South Korea Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and Technology(KAIST)Daejeon 34141South Korea KAIST Institute for NanoCentury Korea Advanced Institute of Science and Technology(KAIST)Daejeon 34141South Korea KAIST Institute for Health Science and Technology Korea Advanced Institute of Science and Technology(KAIST)Daejeon 34141South Korea

With increasing personalized healthcare,fiber-based wearable temperature sensors that can be incorporated into textiles have attracted more attention in the field of wearable ***,we present a flexible,well-passivated,polymer–nanocomposite–based fiber temperature sensor fabricated by a thermal drawing process of multiple *** engineered a preform to optimize material processability and sensor performance by considering the rheological and functional properties of the preform *** fiber temperature sensor consisted of a temperature-sensing core made from a conductive polymer composite of thermoplastic polylactic acid,a conductive carbon filler,reduced graphene oxide,and a highly flexible linear low-density polyethylene passivation *** fiber temperature sensor exhibited adequate sensitivity(−0.285%/℃)within a temperature range of 25–45℃with rapid response and recovery times of 11.6 and 14.8 s,*** addition,it demonstrated a consistent and reliable temperature response under repeated mechanical and chemical stresses,which satisfied the requirements for the long-term application of wearable fiber ***,the fiber temperature sensor sewn onto a daily cloth and hand glove exhibited a highly stable performance in response to body temperature changes and temperature detection by *** results indicate the great potential of this sensor for applications in wearable,electronic skin,and other biomedical devices.

关键词： Fiber temperature sensor Wearable device Thermal drawing process Multi-material thermal drawing conductive polymer composite

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Multi-function adsorbent-photocatalyst MXene-TiO_(2) composites for removal of enrofloxacin antibiotic from water

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Journal of Environmental sciences 2023年第2期124卷 414-428页

作者： Siwanat Sukidpaneenid Chamorn Chawengkijwanich Chonlada Pokhum Toshihiro Isobe Pakorn Opaprakasit Paiboon Sreearunothai TAIST-Tokyo Tech Program Sirindhorn International Institute of TechnologyThammasat UniversityPathum Thani 12121Thailand National Nanotechnology Center National Science and Technology Development AgencyPathum Thani 12120Thailand Department of Materials Science and Engineering School of Materials and Chemical TechnologyTokyo Institute of TechnologyTokyo 152-8550Japan School of Bio-Chemical Engineering and Technology Sirindhorn International Institute of TechnologyThammasat UniversityPathum Thani 12121Thailand

MXenes,a new family of two-dimensional transition metal carbides or nitrides,have attracted tremendous attention for various applications due to their unique properties such as good electrical conductivity,hydrophilicity,and ion *** this work,Ti_(3)C_(2) MXene,or MX,is converted to MX-TiO_(2) composites using a simple and rapid microwave hydrothermal treatment in HCl/NaCl mixture solution that induces formation of fine TiO_(2) particles on the MX parent structure and imparts photocatalytic activity to the resulting MX-TiO_(2) *** composites were used for enrofloxacin(ENR),a frequently found contaminating antibiotic,removal from *** relative amount of the MX and TiO_(2) can be controlled by controlling the hydrothermal temperature resulting in composites with tunable adsorption/photocatalytic *** addition was found to play important role as composites synthesized without NaCl could not adsorb enrofloxacin *** NaCl into the hydrothermal treatment causes sodium ions to be simultaneously intercalated into the composite structure,improving ENR adsorption greatly from 1 to 6 mg ENR/g *** also slows down the MX to TiO2 conversion leading to a smaller and more uniform distribution of TiO_(2) particles on the ***-TiO_(2)/NaCl composites,which have sodium intercalated in their structures,showed both higher ENR adsorption and photocatalytic activity than composites without NaCl despite the latter having higher TiO2 *** ENR on the composites can be efficiently degraded by free radicals generated from the photoexcited TiO2 particles,leading to high photocatalytic degradation *** demonstrates the synergetic effect between adsorption and photocatalytic degradation of the synthesized compounds.

关键词： MXene-TiO_(2)composites Ti3C2 Ion-exchange Photocatalytic degradation Enrofloxacin Antibiotics removal

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Positive-tone Tin-oxo Nanoclusters for Extreme UV lithography 42

Positive-tone Tin-oxo Nanoclusters for Extreme UV lithograph...

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Advances in Patterning Materials and Processes XLII

作者： Kim, Gayoung Ku, Yejin Jeon, Subin Lee, Jin-Kyun Lee, Seohyun Jung, Byung Jun Lee, Sung-Il Ryu, Choonghan Park, Kangho Jung, Yun Lim Jeong, Changyoung Choi, Jin Program in in Environment and Polymer Engineering Inha University Incheon22212 Korea Republic of Program in Semiconductor Convergence Inha University Incheon22212 Korea Republic of Department of Polymer Science and Engineering Inha University Incheon22212 Korea Republic of Department of Materials Science and Engineering University of Seoul Seoul02504 Korea Republic of Samsung Electronics Co. Ltd. Semiconductor R&D Center Suwon18448 Korea Republic of

ISBN: (纸本)9781510686427

In this study, we propose a strategy to achieve positive metal oxide resists (pMORs) based on tin-oxo nanoclusters (TOCs) for extreme ultraviolet (EUV) lithography in high-performance semiconductor integrated circuit manufacturing. TOC possesses Lewis acidic properties and becomes more strongly acidic upon ligand dissociation when exposed to high-energy radiation, such as electron beam (e-beam) and EUV. During the subsequent development process using an aqueous solution of tetramethylammonium hydroxide (TMAH), a Lewis base, the exposed regions undergo Lewis acid-base interactions, leading to increased hydrophilicity. Ultimately, this results in enhanced solubility, enabling the formation of positive-tone patterns. To address the limitations of TOCs, particularly in terms of process margin and chemical stability, we mixed TOCs with small organic molecules containing phenolic hydroxyl groups, which act as Lewis bases. This modification effectively mitigated the shortcomings of TOCs. A TOC formulation containing 10% dendritic polyphenol (DPP) exhibited an improved dissolution contrast while simultaneously enhancing chemical stability. Using this in EUV lithography, we successfully achieved high resolution positive-tone patterns with a line width of 13 nm. © 2025 SPIE.

关键词： Extreme ultraviolet lithography

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