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Application of Threaded System, Rice Husk Ash Addition, Filtering, and Geomembrane to Increase Salt Production in Ambulu Village, Cirebon

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IOP Conference Series: Earth and Environmental science 2021年第1期940卷

作者： M Gozan M I Alhamid N Amir M Efendy Bioprocess Engineering Program Department of Chemical Engineering Faculty of Engineering Universitas Indonesia Depok 16424 Indonesia. Mechanical Engineering Department Faculty of Engineering Faculty of Engineering Universitas Indonesia Depok 16424 Indonesia. Department of Mechanical Engineering University of Trunojoyo Madura 69162 Indonesia. Department of Marine Science University of Trunojoyo Madura 69162 Indonesia

Salt farmers in Indonesia generally carry out simple land processing to produce NaCl levels below 90% and productivity below 80 tons/ha. Several separate efforts have been made to increase the quantity and quality of salt in traditional salt production systems. This work examines the threaded system, additive addition, and geomembrane to increase salt production in Ambulu Village, Cirebon, West Java, Indonesia. The result showed that the quality of salt increases compared to the traditional process. The quality of the salt can be improved. The traditional method of observation contains 91% NaCl. Using a combination of Threaded applications and additives increases the NaCl content by up to 94%. Adding Geomembrane technology from the two previous technologies resulted in salt with a NaCl content of 96%. At the same time, the amount of salt production from Indonesia has also increased to 155 tons/ha, compared to the traditional method, which is 80-90 tons/ha.

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Carbon Nanofibers in Predicted Environmentally Relevant Concentrations Intensify Monocystis Sp. Infection and Affect the Lumbricus Terrestris Earthworms' Health

SSRN

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SSRN 2023年

作者： Montalvão, Mateus Flores Gomes, Alex Rodrigues Guimarães, Abraão Tiago Batista Rodrigues, Aline Sueli de Lima de Matos, Letícia Paiva Mendonça, Juliana dos Santos da Luz, Thiarlen Marinho da Silva Matos, Stênio Gonçalves Rahman, M. Safiur Ragavendran, Chinnasamy Senthil-Nathan, Sengottayan Guru, Ajay Rakib, Md. Refat Jahan Mubarak, Nabisab Mujawar Rahman, Md. Mostafizur Rocha, Thiago Lopes Islam, Abu Reza Md. Towfiqul Malafaia, Guilherme Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia MG Uberlândia Brazil Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí Campus. Rodovia Geraldo Silva Nascimento 25 km Zona Rural GO Urutaí Brazil Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute GO Urutaí Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás GO Goiânia Brazil Bangladesh Atomic Energy CommissionBangladesh Bangladesh Periyar University India Division of Biopesticides and Environmental Toxicology Sri Paramakalyani Centre for Excellence in Environmental Sciences Manonmaniam Sundaranar University Tirunelveli Tamil Nadu Alwarkurichi627 412 India Department of Cariology Saveetha Dental College and Hospitals SIMATS Tamil Nadu Chennai600 077 India Noakhali Science and Technology University Noakhali Bangladesh Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri BegawanBE1410 Brunei Jahangirnagar University Dhaka1342 Bangladesh Laboratory of Environmental Biotechnology and Ecotoxicology Institute of Tropical Pathology and Public Health Federal University of Goiás Goiás Goiania Brazil Department of Disaster Management Begum Rokeya University Rangpur5400 Bangladesh

We aimed at the ecotoxicity of CNFs (at 10 and 100 mg/kg) in Lumbricus terrestris earthworms naturally infected with Monocystis sp. After 28-d of exposure, treatments did not affect the survival rate. However, we observed a significant loss of body biomass, and Monocystis sp. infection in seminal vesicles was potentiated by exposure to CNFs. Earthworms exposed to CNFs showed a redox imbalance in the seminal vesicle, muscle, and intestine and an alteration in nitric oxide production in these organs. In muscles, we also noticed a significant reduction in AChE activity in earthworms exposed to CNFs. The histopathological analyses revealed the treatments' significant effect on the structures of the different evaluated tissues. When taken together and after applying IBRv2 and PCA, we noticed that the response of earthworms to CNFs at 100 mg/kg showed a more significant deviation from the unexposed group. Thus, we demonstrate that CNFs increase the parasite load of Monocystis sp. of adult L. terrestris earthworms and induce biochemical changes and histopathological changes, especially at 100 mg/kg. Our results point to the additional impact these nanomaterials can have on the health of earthworms, signaling the need for greater attention to their disposal and ecotoxicological effects on soil organisms. © 2023, The Authors. All rights reserved.

关键词： Muscle

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Reconstruction of context-specific genome-scale metabolic models using multiomics data to study metabolic rewiring

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Current Opinion in Systems Biology 2019年 15卷 1-11页

作者： Cho, Jae Sung Gu, Changdai Han, Tae Hee Ryu, Jae Yong Lee, Sang Yup Metabolic and Biomolecular Engineering National Research Laboratory Department of Chemical and Biomolecular Engineering (BK21 Plus Program) Institute for the BioCentury Korea Advanced Institute of Science and Technology (KAIST) Daejeon South Korea Systems Metabolic Engineering and Systems Healthcare Cross-Generation Collaborative Laboratory KAIST Daejeon 34141 South Korea BioProcess Engineering Research Center KAIST Daejeon South Korea BioInformatics Research Center KAIST Daejeon South Korea

Metabolic rewiring or reprogramming is the alteration of metabolism in living organisms, leading to disordered states aberrant from homeostasis. As large amounts of omics data become available, complex mechanisms leading to or driven by metabolic rewiring of cells can be better understood using reconstructed context-specific genome-scale metabolic models (GEMs). Here, we review recent advances in reconstructing context-specific GEMs for studying metabolic rewiring of human cells or tissues, from generic GEMs and omics databases to multiomics data integration methods. Also, we review recent studies that use context-specific GEMs to obtain insights such as identifying key regulators or therapeutic targets. Analyses of recent trends indicate the importance of integrating context-specific GEMs with multiscale networks for understanding metabolic diseases and advancing precision medicine. © 2019 Elsevier Ltd

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Carbon Nanofibers in Predicted Environmentally Relevant Concentrations Intensify Monocystis Sp. Infection and Affect the Lumbricus Terrestris Earthworms' Health

SSRN

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SSRN 2023年

作者： Montalvão, Mateus Flores Gomes, Alex Rodrigues Guimarães, Abraão Tiago Batista de Lima Rodrigues, Aline Sueli de Matos, Letícia Paiva dos Santos Mendonça, Juliana da Luz, Thiarlen Marinho da Silva Matos, Stênio Gonçalves Rahman, M. Safiur Ragavendran, Chinnasamy Senthil-Nathan, Sengottayan Guru, Ajay Rakib, Md. Refat Jahan Mubarak, Nabisab Mujawar Rahman, Md. Mostafizur Rocha, Thiago Lopes Towfiqul Islam, Abu Reza Md. Malafaia, Guilherme Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia MG Uberlândia Brazil Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí Campus. Rodovia Geraldo Silva Nascimento 25 Km Zona Rural GO Urutaí Brazil Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute GO Urutaí Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás GO Goiânia Brazil Bangladesh Atomic Energy Commission Bangladesh Periyar University India Division of Biopesticides and Environmental Toxicology Sri Paramakalyani Centre for Excellence in Environmental Sciences Manonmaniam Sundaranar University Alwarkurichi Tamil Nadu Tirunelveli627 412 India Department of Cariology Saveetha Dental College and Hospitals SIMATS Tamil Nadu Chennai600 077 India Noakhali Science and Technology University Noakhali Bangladesh Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri Begawan BE1410 Brunei Jahangirnagar University Dhaka1342 Bangladesh Laboratory of Environmental Biotechnology and Ecotoxicology Institute of Tropical Pathology and Public Health Federal University of Goiás Goiás Goiania Brazil Department of Disaster Management Begum Rokeya University Rangpur5400 Bangladesh

Although the ecotoxicity of carbon-based nanomaterials (CBNs) is known, the potential effect of carbon nanofibers (CNFs) on edaphic organisms has not been evaluated. Thus, we aimed at the ecotoxicity of CNFs (at 10 and 100 mg/kg) in Lumbricus terrestris earthworms naturally infected with Monocystis sp. After 28 days of exposure, treatments did not affect the survival rate. However, we observed a significant loss of body biomass, and Monocystis sp. infection in seminal vesicles was potentiated by exposure to CNFs. Earthworms exposed to CNFs showed a redox imbalance in the seminal vesicle, muscle, and intestine and an alteration in nitric oxide production in these organs. In muscles, we also noticed a significant reduction in AChE activity in earthworms exposed to CNFs. The histopathological analyses revealed the treatments' significant effect on the structures of the different evaluated tissues. Although we did not notice a concentration-response for several of the biomarkers, when taken together and after the application of IBRv2 and principal component analysis (PCA), we noticed that the response of earthworms to CNFs at 100 mg/kg showed a more significant deviation from the unexposed group. This was mainly determined by inhibiting antioxidant activity in the seminal vesicle, biochemical biomarkers assessed in muscle and intestine, and histomorphometric muscle biomarkers from earthworms exposed to CNFs at 100 mg/kg. Thus, we demonstrate that CNFs increase the parasite load of Monocystis sp. of adult L. terrestris earthworms and induce biochemical changes and histopathological changes, especially at 100 mg/kg. Our results point to the additional impact these nanomaterials can have on the health of earthworms, signaling the need for greater attention to their disposal and ecotoxicological effects on soil organisms. © 2023, The Authors. All rights reserved.

关键词： Biomarkers

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The Synthesis of a Multiple D–A Conjugated Macrocycle and Its Application in Organic Photovoltaic

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Angewandte Chemie 2023年第48期135卷

作者： Wei Liu Dr. Huotian Zhang Songting Liang Dr. Tong Wang Siqing He Yunbin Hu Dr. Rui Zhang Dr. Haoqing Ning Dr. Jie Ren Prof. Artem Bakulin Prof. Feng Gao Dr. Jun Yuan Prof. Yingping Zou College of Chemistry and Chemical Engineering Central South University 410083 Changsha P. R. China Department of Physics Chemistry and Biology Linköping University SE-581 83 Linköping Sweden Department of Chemistry and Centre for Processable Electronics Imperial College London W12 0BZ London United Kingdom MOE Key Laboratory of Macromolecular Synthesis and Functionalization International Research Center for X Pol-ymers Department of Polymer Science and Engineering Zhejiang University 310027 Hangzhou P. R. China

As a novel class of materials, D–A conjugated macrocycles hold significant promise for chemical science. However, their potential in photovoltaic remains largely untapped due to the complexity of introducing multiple donor and acceptor moieties into the design and synthesis of cyclic π-conjugated molecules. Here, we report a multiple D–A ring-like conjugated molecule ( RCM ) via the coupling of dimer molecule DBTP-C3 as a template and thiophenes in high yields. RCM exhibits a narrow optical gap (1.33 eV) and excellent thermal stability, and shows a remarkable photoluminescence yield ( Φ PL ) of 11.1 % in solution, much higher than non-cyclic analogues. Organic solar cell (OSC) constructed with RCM as electron acceptor shows efficient charge separation at donor-acceptor band offsets and achieves a power conversion efficiency (PCE) of 14.2 %-approximately fourfold higher than macrocycle-based OSCs reported so far. This is partly due to low non-radiative voltage loss down to 0.20 eV and a high electroluminescence yield ( Φ EL ) of 4×10 −4 . Our findings emphasize the potential of D–A cyclic conjugated molecules in advancing organic photovoltaic technology.

关键词： Donor-Acceptor Molecules Macrocycles Organic Photovoltaics Solar Cells

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Rationally designed chimeric solid-binding peptides for tailoring solid interfaces

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Medical Devices and Sensors 2020年第3期3卷

作者： Yucesoy, Deniz T. Khatayevich, Dimitry Tamerler, Candan Sarikaya, Mehmet GEMSEC Genetically Engineered Materials Science and Engineering Center University of Washington SeattleWA United States Department of Materials Science and Engineering University of Washington SeattleWA United States Department of Mechanical Engineering Bioengineering Program Institute for Bioengineering Research University of Kansas Lawrence LawrenceKS United States Department of Chemical Engineering University of Washington SeattleWA United States Department of Oral Health Sciences University of Washington SeattleWA United States Impossible Foods Redwood CityCA United States

Joining biology with materials science requires the ability to design, engineer and control biology/solid-state materials interfaces at the molecular level. The specific molecular interactions that take place among biomolecules, known as molecular recognition, enable all aspects of molecular processes in living systems prerequisite to the biological functions. Having the ability to establish specific biological interactions between the solid materials and biological constituents is essential for precise design of biologically viable soft interfaces that are molecularly tailored at solid surfaces. Solid-binding peptides offer excellent opportunities in surface biofunctionalization over the traditionally utilized chemical approaches which generally make use of covalent bonds for surface molecular attachments with limited flexibility. Solid-binding peptides are selected using directed evolution techniques using genotype to phenotype relationships and therefore referred also as genetically engineered peptides for inorganics (GEPI) and exclusively bind to solid materials using molecular recognition. Here, the peptide has weak interactions at multiple contact points that are established between the biomolecule and the solid lattice, and then folds into a conformation coherent with the underlying solid lattice through self-organization on the surface. Solid-binding peptides provide an unprecedented biological advantage as modular building blocks to couple biological and synthetic entities at the bio–solid interfaces. Taking full advantage of biology's versatility, they can easily be engineered to form chimeric molecules with inherent multifunctionality displaying biofunctional molecular entities, such as enzymes, co-factors, antimicrobial peptides, antibodies, nucleic acids and molecular probes that target biomarkers. This minireview provides an insight into the key principles of solid-binding peptides for advancing surfaces biofunctionalization by a selected set of exampl

关键词： Biomolecules

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Alloying behavior of wide band gap alkaline-earth chalcogenides

arXiv

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arXiv 2020年

作者： Millican, Samantha L. Clary, Jacob M. Bartel, Christopher J. Singstock, Nicholas R. Holder, Aaron M. Musgrave, Charles B. Department of Chemical and Biological Engineering University of Colorado BoulderCO80309 United States Materials and Chemical Science and Technology Center National Renewable Energy Laboratory GoldenCO80401 United States Renewable and Sustainable Energy Institute University of Colorado Boulder BoulderCO80309 United States Materials Science and Engineering Program University of Colorado Boulder BoulderCO80309 United States

Alloying is a powerful tool for tuning materials that facilitates the targeted design of desirable properties for a variety of applications. In this work, we provide a comprehensive investigation of the synthetic accessibility and electronic properties of nine alkaline-earth chalcogenide anion alloys (CaS1-xOx, CaS1-xSex, CaS1-xTex, SrS1-xOx, SrS1-xSex, SrS1-xTex, MgS1-xOx, MgS1-xSex, and MgS1-xTex). We show that isostructural alloying within the rock salt structure is favored for all systems except MgS1-xTex, which is predicted to be a heterostructural alloy between the rock salt and wurtzite structures. Alloys of S and Se are shown to be readily accessible for all cations with low miscibility critical temperatures, enabling continuous tuning of electronic properties across this composition space. Alloys of S and Te have higher critical temperatures but may be accessible through non-equilibrium synthesis strategies and are predicted here to have desirable electronic properties for optoelectronics with wide band gaps and lower effective masses than alloys of S and Se. Anion alloying in MgS1-xTex stabilizes the wurtzite structure across a significant fraction of composition space, which may make it of particular interest as a transparent conducting material due to its lower effective masses and a higher band gap than the rock salt structure. Zero-point corrected random phase approximation (RPA) energies were computed to resolve the small polymorph energy differences of the Mg compounds and are shown to be critical for accurately describing the thermodynamic properties of the corresponding alloys. Copyright © 2020, The Authors. All rights reserved.

关键词： Electronic properties

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Simulation of Illipe Butter Purification Originated from West Kalimantan by SuperPro Designer

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Journal of Physics: Conference Series 2021年第1期1726卷

作者： Nurul Hikmah Ramadhani Muhammad Arif Darmawan Andre Fahriz Perdana Harahap Muhammad Yusuf Arya Ramadhan Ursula Chriseva Silalahi Misri Gozan Bioprocess Engineering Program Department of Chemical Engineering Faculty of Engineering Universitas Indonesia Depok 16424 Indonesia School of Environmental Science Universitas Indonesia Jl. Salemba Raya No.4 Jakarta 10430 Indonesia

Tengkawang is one of the commodities of non-timber forest products which has been a life of support for people around the forest. Seeds produced by Tengkawang trees are one of the export commodities. However, unfortunately, the process of exporting Tengkawang seeds abroad often requires a long time to reduce the quality of the Tengkawang seeds. Processing of Tengkawang seeds into oil is a solution to the decline in quality of Tengkawang seeds. Like standard crude vegetable oil, Tengkawang oil also contains impurities. Therefore, a purification process to remove these impurities is needed. This research was conducted to produce purified Tengkawang fat optimally. Purification stages include degumming, neutralization and bleaching. This research will focus on the simulation of purified Tengkawang fat production. In this case, the simulation is carried out as an estimator of the feasibility value roughly whether a fat purification plant can be realized or not.

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Characteristics of Kemiri Sunan (reutalis trisperma (blanco) airy shaw) biodiesel processed by a one stage transesterification process

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IOP Conference Series: Earth and Environmental science 2021年第1期623卷

作者： S Supriyadi P Purwanto H Hermawan D D Anggoro C Carsoni A Mukhtar Department of Mechanical Engineering Universitas PGRI Semarang Semarang Indonesia Doctoral Program of Environmental Science School of Postgraduate Studies Universitas Diponegoro Indonesia Department of Chemical Engineering Faculty of Engineering Universitas Diponegoro Semarang Indonesia Semarang Indonesia Department of Electrical Engineering Faculty of Engineering Universitas Diponegoro Semarang Indonesia

Kemiri sunan (Reutalis trisperma (blanco) airy shaw) is a plant that has the potential to be developed as a biodiesel feedstock in Indonesia because its fruit seeds have several advantages compared to jatropha and palm oil, including its oil content and productivity. The biodiesel production process consists of three stages, namely, esterification, transesterification, and purification. The process requires strong mixing to obtain sufficient contact between the vegetable oil and the catalyst or alcohol, especially at the beginning of the reaction. It is carried out manually in the reaction process through mechanical mixing (stirring) and heating in the transesterification process. Furthermore, biodiesel production process is greatly influenced by the accuracy of concentration and type of catalyst. This study aims to identify the optimal method for the process of biodiesel production from kemiri sunan oil. The research was conducted with a one-stage transesterification to determine the biodiesel yield and quality. The results showed that several biodiesel parameters satisfied the Indonesian National Standard (SNI) for biodiesel (SNI number 7182:2015). However, the kinematic viscosity of biodiesel was still higher than the standard.

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Rapid Access to Diverse Multicomponent Hierarchical Nanostructures from Mixed-Graft Block Copolymers

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Angewandte Chemie 2022年第41期134卷

作者： Ruiqi Liang Qingliang Song Ruipeng Li An N. Le Xiaowei Fu Yazhen Xue Xiaoyu Ji Weihua Li Mingjiang Zhong Department of Chemical and Environmental Engineering Yale University New Haven CT 06520 USA State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200438 China National Synchrotron Light Source II Brookhaven National Laboratory Upton NY 11973 USA State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu 610065 China Department of Chemistry Yale University New Haven CT 06520 USA

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