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Thermal, electrical, and mechanical properties of highly filled HDPE/graphite nanoplatelets composites

Materials Today: Proceedings 2020年 29卷 704-708页

作者： A.U. Chaudhry Sunil P. Lonkar Ratiram G. Chudhary Abdelnasser Mabrouk Ahmed A. Abdala Chemical Engineering Program Texas A & M University at Qatar POB 23784 Doha Qatar Department of Chemical Engineering Khalifa University Abu Dhabi United Arab Emirates Qatar Environment and Energy Research Institute Hamad Bin Khalifa University Doha Qatar PG Department of Chemistry S. K. Porwal College of Arts Science and Commerce Kamptee 441001 India

Composites of highly filled high-density polyethylene (HDPE) graphite nanoplatelets (GNPs) are fabricated using melt extrusion and influence of GNP on thermal, mechanical and electrical properties are analysed. We observed increase in Young’s modulus and enhancement in thermal stability with filler addition. On the other hand, the degree of crystallinity and melting temperature decreased with GNPs content. The incorporation of GNPs greatly decreased the electrical resistivity by 10 orders of magnitude and 400% increase in thermal conductivity for filled HDPE was also observed. Therefore, highly-filled, functional (thermally and electrically conductive) HDPE composites with excellent mechanical and thermal stability have been prepared.

关键词： HDPE composites GNP Thermal conductivity Electrical conductivity Mechanical properties

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Front Cover: Polypyrrole regulates Active Sites in Co-based Catalyst in Direct Borohydride Fuel Cells (ChemSusChem 7/2024)

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ChemSusChem 2024年第7期17卷

作者： Lin Kang Cheng Liu Jinyu Ye Wenzhe Niu Xiaowen Cui Yajie Zhu Liangyao Xue Jiaqi Zhang Lirong Zheng Youyong Li Bo Zhang State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200438 China Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Suzhou 215123 China State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China Beijing Synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China

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Enhanced exopolysaccharide production of Cordyceps militaris via mycelial cell immobilization on plastic composite support in repeated-batch fermentation

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International Journal of Biological Macromolecules 2023年第1期250卷 126267页

作者： Lin, Shin-Ping Sung, Ting-Hsuan Angkawijaya, Artik Elisa Go, Alchris Woo Hsieh, Chang-Wei Hsu, Hsien-Yi Santoso, Shella Permatasari Cheng, Kuan-Chen School of Food Safety Taipei Medical University #250 Wuxing Street Xinyi Dist. Taipei11042 Taiwan Research Center of Biomedical Device Taipei Medical University #250 Wu-Hsing Street Taipei11031 Taiwan TMU Research Center for Digestive Medicine Taipei Medical University #250 Wu-Hsing Street Taipei11031 Taiwan Ph.D. Program in Drug Discovery and Development Industry Taipei Medical University #250 Wu-Hsing Street Taipei11031 Taiwan Taiwan Institute of Food Science and Technology National Taiwan University #1 Sec. 4 Roosevelt Rd. Taipei10617 Taiwan Institute of Food Science and Technology National Taiwan University #1 Sec. 4 Roosevelt Rd. Taipei10617 Taiwan School of Nutrition and Health Sciences Taipei Medical University #250 Wu-Hsing Street Taipei11031 Taiwan Center for Sustainable Resource Science RIKEN Yokohama230-0045 Japan Department of Chemical Engineering National Taiwan University of Science and Technology #43 Sec. 4 Keelung Rd Taipei10607 Taiwan Department of Food Science and Biotechnology National Chung Hsing University South Dist. Taichung City40227 Taiwan Department of Medical Research China Medical University Hospital North Dist. Taichung City404333 Taiwan Taiwan Institute of Biotechnology National Taiwan University #1 Sec. 4 Roosevelt Rd. Taipei10617 Taiwan School of Energy and Environment Department of Materials Science and Engineering City University of Hong Kong Kowloon Tong Hong Kong Shenzhen Research Institute of City University of Hong Kong Shenzhen518057 China Department of Chemical Engineering Widya Mandala Surabaya Catholic University Kalijudan 37 Surabaya60114 Indonesia Collaborative Research Center for Zero Waste and Sustainability Jl. Kalijudan 37 East Java Surabaya60114 Indonesia Institute of Biotechnology National Taiwan University #1 Sec. 4 Roosevelt Rd. Taipei10617 Taiwan Department of Medical Research China Medical University Hospital China Medical University 91 Hsueh-Shih Road Taichung40

Repeated-batch fermentation with fungal mycelia immobilized in plastic composite support (PCS) eliminates the lag phase during fermentation and improves metabolite productivity. The strategy is implemented herein, and a novel modified PCS is developed to enhance exopolysaccharide (EPS) production from the medicinal fungus Cordyceps militaris. A modified PCS (SYE + PCS) was made by compositing polypropylene (PP) with a nutrient mixture containing soybean hull, peptone, yeast extract, and minerals (SYE+). The use of SYE + PCS has consistent cell productivity throughout the multiple fermentation cycles, which resulted in a more higher cell productivity after second batch compared to unmodified PCS. The cell grown on SYE + PCS also generates a higher yield of EPS (3.36, 6.93, and 5.72 g/L in the first, second, and third fermentation cycles, respectively) up to three-fold higher than the cell immobilized on unmodified PCS. It is also worth noting that the EPS from mycelium grown on SYE + PCS contains up to 2.3-fold higher cordycepin than those on unmodified PCS. The presence of nutrients in SYE + PCS also affects the hydrophobicity and surface roughness of the PC, improving mycelial cell adhesion. This study also provides a preliminary antioxidant activity assessment of EPS from immobilized C. militaris grown with SYE + PCS. © 2023

关键词： Mycelium

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Untitled

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science 2022年第6615期378卷 22-22页

作者： Sills, Jennifer Division of Life Sciences and Medicine University of Science and Technology of China Hefei Anhui 230027 China. Department of Surgery Harvard University Brigham and Women’s Hospital Boston MA 02115 USA. Faculty of Applied Science Macao Polytechnic University Macao SR China. School of Liberal Education Chengdu Jincheng College Chengdu Sichuan 611731 China. Translational Health Science and Technology Institute Faridabad Haryana 121001 India. Department of Chemical Engineering University of Washington Seattle WA 98105 USA. Johns Hopkins University Baltimore MD 21218 USA. The Affiliated Hospital Guizhou Medical University Guiyang Guizhou 550004 China. Department of Infectious Disease Epidemiology Imperial College London London W2 1PG UK. Manchester Fungal Infection Group University of Manchester Manchester UK. Philadelphia PA USA. Harrisburg PA 17102 USA. Department of Chemistry University of Pennsylvania Philadelphia PA 19104 USA. University of Kansas Lawrence KS 66045 USA. Mott MacDonald Noida UP 201010 India. Trudeau Institute Saranac Lake NY 12983 USA. US Department of Agriculture Parlier CA 93648 USA. Vagelos Molecular Life Sciences Program University of Pennsylvania Philadelphia PA 19104 USA. School of Information Systems and Technology Management University of New South Wales Sydney NSW 2052 Australia.

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Photoactivated theranostic nanomaterials based on aggregation-induced emission luminogens for cancer photoimmunotherapy

Responsive Materials

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Responsive Materials 2024年第2期2卷

作者： Yuqi Tang Xing Wang Shilin Chen Quan Li Institute of Advanced Materials and School of Chemistry and Chemical Engineering Southeast University Nanjing China Department of Thoracic Surgery The Affiliated Cancer Hospital of Nanjing Medical University Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research Nanjing China Materials Science Graduate Program Kent State University Kent Ohio USA

In this study, a series of high liposoluble near-infrared emissive aggregation-induced emission luminogens with triphenylamine derivatives as donor units and 1-indanone as electron acceptor units are developed. Specifically, MTTOI has promising lipid droplets targeting ability and viscosity-response characteristics, and it can monitor the viscosity fluctuations in living cells in real time. It is found that MTTOI is able to fulfill the activation of the apoptosis-related signaling pathways under white light, and it can also activate the ferroptosis to synergize apoptosis resulting in tumor elimination. Interestingly, the occurrence of ferroptosis is positively related to the enhancement of immunogenic cell-death effect, thus boosting the tumor infiltration of CD8 + T cells and reducing the proportion of regulatory T cells by cooperating with dendritic cells, which can not only carry out primary antitumor treatment, but also prevent tumor metastasis through strong immunological memory effect. Moreover, in vivo experimental results confirm that MTTOI successfully effectuates fatty liver tissue imaging. MTTOI fluorescence signals can be captured at the tumor site after 3 days of administration due to its high fat-solubility and ease of fusion with tumors. This classic example could promote the further development of phototherapeutic agents in preclinical research and clinical applications.

关键词： cancer photoimmunotherapy ferroptosis near-infrared aggregation-induced emission luminogen photoactivated theranostic nanomaterial viscosity response

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Machine Learning Modeling for Hydrolysis Recycling of Pet Waste

SSRN

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SSRN 2025年

作者： Li, Jie Pan, Lanjia Abedsoltan, Hossein Wang, Hailong Liu, Taiyang Yuan, Xiangzhou Ok, Yong Sik Wang, Yin State Key Laboratory for Ecological Security of Regions and Cities Institute of Urban Environment Chinese Academy of Sciences Xiamen361021 China State Key Laboratory of Advanced Environmental Technology Institute of Urban Environment Chinese Academy of Sciences Xiamen361021 China University of Chinese Academy of Sciences Beijing100049 China Sustainable Waste Management Program Division of Environmental Science and Ecological Engineering Korea University Seoul02841 Korea Republic of Ministry of Education of Key Laboratory of Energy Thermal Conversion and Control School of Energy and Environment Southeast University Nanjing210096 China Department of Chemical Engineering The University of Toledo ToledoOH43607 United States Linda and Bipin Doshi Department of Chemical and Biochemical Engineering Missouri University of Science and Technology RollaMO65401 United States

Hydrolysis of polyethylene terephthalate (PET) into terephthalic acid (TPA) is one key approach for waste PET recycling. However, achieving an in-depth understanding in PET hydrolysis remains challenging. Herein, we employed machine learning (ML) methods to interpret the PET conversion with a dataset compiled, containing 942 data points and rich hydrolysis factors of PET-related information, heating type, acid/base catalyst (ABC), organic solvent (OS), co-solvent, phase transfer catalyst (PTC), and operational condition. A Neural Network model was found to be the best for predicting PET conversion, with a testing R2 and RMSE of 0.93 and 8.45%. The model-based interpretation suggested that operational conditions accounted for 45% of importance, followed by ABC (19%), OS (12%), and PTC (12%). Furthermore, hydrolysis time, temperature, and ABC concentration were identified as the top-three factors positively influencing PET conversion. This work facilitates the catalyst and process optimization for PET hydrolysis to promote the plastic circular economy. © 2025, The Authors. All rights reserved.

关键词： Transfer learning

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Fabrication of silica-nypa membrane applied for water desalination

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AIP Conference Proceedings 2024年第1期2710卷

作者： Muthia Elma Isna Syauqiah Era N. R. Oktaviana Siti Fatimah Aulia Rahma Awali Sir Kautsar Harivram Erdina L. A Rampun Chemical Engineering Department Engineering Faculty Lambung Mangkurat University JL. A. Yani KM 36 Banjarbaru South Kalimantan 70714 Indonesia Materials and Membranes Research Group (M2ReG) Lambung Mangkurat University JL. A.Yani KM 36 Banjarbaru South Kalimantan 70714 Indonesia Doctoral Program of Environmental Science postgraduate Program Lambung Mangkurat University Jl. Brigjen H Hasan Basri Kayutangi Banjarmasin South Kalimantan 70123 Indonesia

Carbon source as a template derived from nypa leaf powder enable to strengthen the silica matrix applied for water desalination. This research aims to synthesize silica-nypa membrane, characterize xerogel silica-nypa leaf and investigate the performance of silica-nypa membrane with various concentration of nypa as a carbon template to treat artificial sea water. The concentrations of nypa leaf as a carbon template are 0.1; 0.5 and 2.5 %wt with a calcination temperature of 350 °C through a rapid thermal processing (RTP) technique. Xerogel characterization using FTIR was employed to analyze a spectrum and Scanning Electron Microscopy (SEM) to investigate the membrane morphology. The result shows that the performance of silica-nypa membrane with water fluxes of 2.1915; 2.0163 and 1.1067 kg.m−2. h−1 (for 0.1; 0.5 and 2.5 %wt. carbon template derived from nypa leaf), and the salt rejection value for all concentrations.

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Physical characteristics of modified cassava flour wastewater at room temperature

Physical characteristics of modified cassava flour wastewate...

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International Conference on Food science and Technology 2018, ICFST 2018

作者： Yaqin, N. Al-Baarri, A.N. Legowo, A.M. Widayat Budihardjo, M.A. Program of Environmental Science School of Post-Graduate Studies Diponegoro University Semarang Indonesia Food Technology Department Faculty of Animal and Agricultural Sciences Diponegoro University Semarang Indonesia Chemical Engineering Department Faculty of Engineering Diponegoro University Semarang Indonesia Center of Research and Services Diponegoro University Semarang Indonesia Department of Environmental Engineering Faculty of Engineering Diponegoro University Indonesia

Cassava is an agricultural material that is considered as important raw resources in the industrial sector. The benefits are even greater after being modified using lactic acid bacteria. However, the mocaf industry often causes water and air pollution. Environmental problems arise after the fermentation process. Determination problems with lightness, TDS (Total Dissolved Solid), conductivity and pH analysis are required to measure the impact to the environment. This research was used waste water from mocaf during 3 days fermentation. The wastewater had the highest color level (Lightness) on initial day of fermentation at 83.7±3.73 and then decrease along the day of fermentation at the averages of 65.2±2.0. The highest TDS was resulted from the mocaf wastewater at a value of 1218 ± 4.6 ppm which continued to decline until day 4. The conductivity and pH showed a decrease along the day of fermentation. As conclusion, physical characteristic of wastewater from mocaf production could be analyzed specifically and determined through color, TDS, conductivity, and pH. © 2019 Published under licence by IOP Publishing Ltd.

关键词： Fermentation

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Transcriptomic Profiling of JEG-3 cells using human leiomyoma derived matrix

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Biomaterials and Biosystems 2022年 7卷 100056页

作者： Barmaki, Samineh Al-Samadi, Ahmed Leskinen, Katarzyna Wahbi, Wafa Jokinen, Ville Vuoristo, Sanna Salo, Tuula Kere, Juha Wedenoja, Satu Saavalainen, Päivi Department of Pharmacology Faculty of Medicine University of Helsinki Helsinki 00290 Finland Department of Oral and Maxillofacial Disease University of Helsinki Helsinki 00290 Finland Translational Immunology Research Program Department of Clinical and Medical Genetics University of Helsinki Helsinki 00290 Finland Department of Chemistry and Materials Science School of Chemical Engineering Aalto University Espoo 00076 Finland Obstetrics and Gynecology University of Helsinki and Helsinki University Hospital Helsinki 00290 Finland Department of Biosciences and Nutrition Karolinska Institutet Huddinge 14183 Sweden Folkhälsan Research Center Helsinki 00290 Finland Stem Cells and Metabolism Research Program University of Helsinki Helsinki 00014 Finland Stem Cells and Metabolism Research Program University of Helsinki and Folkhälsan Research Center Helsinki 00290 Finland

Oxygen tension varies during placental and fetal development. Although hypoxia drives early trophoblast invasion, low placental oxygen levels during pregnancy show association with pregnancy complications including fetal growth restriction and preeclampsia. JEG-3 cells are often used as a trophoblast model. We studied transcriptional changes of JEG-3 cells on a uterine leiomyoma derived matrix Myogel. This might be the closest condition to the real uterine environment that we can get for an in vitro model. We observed that culturing JEG-3 cells on the leiomyoma matrix leads to strong stimulation of ribosomal pathways, energy metabolism, and ATP production. Furthermore, Myogel improved JEG-3 cell adherence in comparison to tissue culture treated plastic. We also included PDMS microchip hypoxia creation, and observed changes in oxidative phosphorylation, oxygen related genes and several hypoxia genes. Our study highlights the effects of Myogel matrix on growing JEG-3 cells, especially on mitochondria, energy metabolism, and protein synthesis. © 2022 The Author(s)

关键词： Biomaterials Hypoxia JEG-3 Microenvironment Microfluidic Myogel Oxygen scavenger PDMS Placenta Pre-eclampsia

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Tissue clearing and its applications in neuroscience (vol 21, pg 61, 2020)

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NATURE REVIEWS NEUROscience 2020年第5期21卷 298-298页

作者： Ueda, Hiroki R. Ertuerk, Ali Chung, Kwanghun Gradinaru, Viviana Chedotal, Alain Tomancak, Pavel Keller, Philipp J. Department of Systems Pharmacology University of Tokyo Tokyo Japan Laboratory for Synthetic Biology RIKEN BDR Suita Japan Institute for Stroke and Dementia Research Klinikum der Universität München Ludwig-Maximilian University of Munich Munich Germany Institute of Tissue Engineering and Regenerative Medicine Helmholtz Zentrum München Neuherberg Germany Munich Cluster for Systems Neurology (SyNergy) Munich Germany Institute for Medical Engineering and Science Massachusetts Institute of Technology Cambridge MA USA Picower Institute for Learning and Memory Massachusetts Institute of Technology Cambridge MA USA Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA USA Department of Brain and Cognitive Sciences Massachusetts Institute of Technology Cambridge MA USA Eli & Edythe Broad Institute of MIT and Harvard Cambridge MA USA Center for NanoMedicine Institute for Basic Science Seoul Republic of Korea Graduate Program of Nano Biomedical Engineering Yonsei-IBS Institute Yonsei University Seoul Republic of Korea Division of Biology and Biological Engineering California Institute of Technology Pasadena CA USA Institut de la Vision Sorbonne Université INSERM CNRS Paris France Max Planck Institute of Molecular Cell Biology and Genetics Dresden Germany IT4Innovations Technical University of Ostrava Ostrava Czech Republic Janelia Research Campus Howard Hughes Medical Institute Ashburn VA USA

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

关键词： Immunological techniques Light-sheet microscopy Neuroscience

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