Nature Chemical Engineering最新文献_第4页

Keeping cool under pressure 在压力下保持冷静

Nature Chemical Engineering Pub Date : 2025-01-27 DOI: 10.1038/s44286-025-00181-2

Thomas Dursch

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Chemical ventures from ideas to scaled solutions 化工企业从创意到规模化解决方案

Nature Chemical Engineering Pub Date : 2025-01-27 DOI: 10.1038/s44286-024-00169-4

Miguel A. Modestino, David Fernandez Rivas, Hannah Murnen, Aimee Rose, Susan Schofer, Stafford W. Sheehan, Richard Wang

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Modeling the depolymerization of plastics 模拟塑料的解聚

Nature Chemical Engineering Pub Date : 2025-01-27 DOI: 10.1038/s44286-024-00168-5

Alexander K. Best, Aswathy K. Raghu, Paulami Majumdar, Linda J. Broadbelt

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Metabolizable supramolecular plastics 可代谢的超分子塑料

Nature Chemical Engineering Pub Date : 2025-01-27 DOI: 10.1038/s44286-025-00178-x

Yanfei Zhu

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Nanoscale confinement strategy for the stabilization of few-atom platinum cluster catalysts 稳定少原子铂簇催化剂的纳米级限制策略

Nature Chemical Engineering Pub Date : 2025-01-23 DOI: 10.1038/s44286-025-00173-2

引用次数: 0

Biosensors responsive to glucose uptake rates can dynamically regulate metabolic flux 响应葡萄糖摄取速率的生物传感器可以动态调节代谢通量

Nature Chemical Engineering Pub Date : 2025-01-23 DOI: 10.1038/s44286-025-00174-1

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Beyond the fourth paradigm of modeling in chemical engineering 超越化学工程建模的第四范式

Nature Chemical Engineering Pub Date : 2025-01-22 DOI: 10.1038/s44286-024-00170-x

John R. Kitchin, Victor Alves, Carl D. Laird

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Beyond molecular transformations in electrochemical porous solid electrolyte reactors 超越电化学多孔固体电解质反应器中的分子转化

Nature Chemical Engineering Pub Date : 2025-01-20 DOI: 10.1038/s44286-024-00160-z

Ahmad Elgazzar, Haotian Wang

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Stabilizing supported atom-precise low-nuclearity platinum cluster catalysts by nanoscale confinement 纳米尺度约束稳定负载原子精密低核铂团簇催化剂

Nature Chemical Engineering Pub Date : 2025-01-17 DOI: 10.1038/s44286-024-00162-x

Yizhen Chen, Jiankang Zhao, Xiao Zhao, Di Wu, Nan Zhang, Junjie Du, Jie Zeng, Xu Li, Miquel Salmeron, Jingyue Liu, Bruce C. Gates

{"title":"Stabilizing supported atom-precise low-nuclearity platinum cluster catalysts by nanoscale confinement","authors":"Yizhen Chen, Jiankang Zhao, Xiao Zhao, Di Wu, Nan Zhang, Junjie Du, Jie Zeng, Xu Li, Miquel Salmeron, Jingyue Liu, Bruce C. Gates","doi":"10.1038/s44286-024-00162-x","DOIUrl":"10.1038/s44286-024-00162-x","url":null,"abstract":"Supported noble metal cluster catalysts provide the advantages of high atom efficiency and size-dependent properties, but their stabilization remains a major challenge for industrial applications. Now we report an approach for the stabilization of nuclearity-controlled platinum nanoclusters with a typical diameter of ~0.7 nm (Pt7−14) confined on CeOx nanoislands on a porous silica support. The clusters were synthesized by the reduction of platinum single atoms on the islands in H2 at 400 °C. Redox cycles led to cluster formation and breakup at hundreds of degrees Celsius, with platinum remaining confined to the respective islands. The clusters maintained their nuclearity and were resistant to sintering in H2 at temperatures of ≤600 °C and atmospheric pressure. Experimental catalyst performance data bolstered by computational results demonstrate that these platinum clusters are more active than mononuclear platinum, also exhibiting higher steady-state activity than larger and smaller platinum clusters for ethylene hydrogenation. Platinum nanoclusters comprising about ten atoms each made by reducing isolated platinum cations in CeOx nests isolated on high-area silica are demonstrated. Two forms of platinum were reversibly interconverted by oxidation/reduction, remaining stably confined to the nests even under severe conditions, in H2 at 600 °C and under atmospheric pressure.","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":"2 1","pages":"38-49"},"PeriodicalIF":0.0,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s44286-024-00162-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143121549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Monitoring and dynamically controlling glucose uptake rate and central metabolism 监测和动态控制葡萄糖摄取率和中枢代谢

Nature Chemical Engineering Pub Date : 2025-01-17 DOI: 10.1038/s44286-024-00163-w

Dongqin Ding, Yaru Zhu, Danyang Bai, Tongxin Wan, Sang Yup Lee, Dawei Zhang

{"title":"Monitoring and dynamically controlling glucose uptake rate and central metabolism","authors":"Dongqin Ding, Yaru Zhu, Danyang Bai, Tongxin Wan, Sang Yup Lee, Dawei Zhang","doi":"10.1038/s44286-024-00163-w","DOIUrl":"10.1038/s44286-024-00163-w","url":null,"abstract":"The rate of glucose import directly affects the maximum possible flux of central carbon metabolism. However, few tools can directly monitor the cellular glucose uptake rate. Here we report the development of a set of programmable bifunctional glucose uptake rate biosensors (GURBs) for real-time monitoring of glucose uptake rate, which enable the dynamic activation and inhibition of glucose uptake and central metabolism in Escherichia coli. These genetic circuits are used to monitor the glucose uptake rates of strains under different culture conditions. Also, feedback-loop control systems are designed to make cells rely on the glucose uptake rate to tune the target metabolic modules, resulting in a substantial increase of the titers of l-tryptophan, riboflavin and d-lactic acid. The glucose-uptake-rate-responsive genetic circuits developed in this study will serve as an effective tool for the dynamic control of glucose uptake and central metabolism. Glucose uptake is the initial step in cellular metabolism, and its uptake rate directly determines the overall metabolic flow. Here the authors develop a set of programmable bifunctional biosensors for real-time monitoring of glucose uptake rates and dynamic dual control of glucose uptake and central metabolism.","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":"2 1","pages":"50-62"},"PeriodicalIF":0.0,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s44286-024-00163-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143121526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0