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Bending barriers in CO2 adsorption 二氧化碳吸附中的弯曲屏障
Pub Date : 2025-09-22 DOI: 10.1038/s44286-025-00288-6
Thomas Dursch
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引用次数: 0
Membrane synthesis charges ahead 膜合成领先一步
Pub Date : 2025-09-18 DOI: 10.1038/s44286-025-00280-0
Suzana Nunes
Membranes with thin polymer layers (<100 nm), typically made via interfacial polymerization with large amounts of organic solvents, are essential for desalination and chemical separations. While membrane chemistry has diversified, fabrication methods have seen only incremental change. Now, a fully aqueous electrochemical synthesis brings innovation to membrane separations.
具有薄聚合物层(100纳米)的膜,通常通过与大量有机溶剂的界面聚合制成,对于海水淡化和化学分离是必不可少的。虽然膜化学已经多样化,但制造方法只是渐进式的变化。现在,全水电化学合成为膜分离带来了创新。
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引用次数: 0
Membrane synthesis charges ahead 膜合成领先一步
Pub Date : 2025-09-18 DOI: 10.1038/s44286-025-00280-0
Suzana Nunes
Membranes with thin polymer layers (<100 nm), typically made via interfacial polymerization with large amounts of organic solvents, are essential for desalination and chemical separations. While membrane chemistry has diversified, fabrication methods have seen only incremental change. Now, a fully aqueous electrochemical synthesis brings innovation to membrane separations.
具有薄聚合物层(100纳米)的膜,通常通过与大量有机溶剂的界面聚合制成,对于海水淡化和化学分离是必不可少的。虽然膜化学已经多样化,但制造方法只是渐进式的变化。现在,全水电化学合成为膜分离带来了创新。
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引用次数: 0
Hot off the press 刚印出来的
Pub Date : 2025-09-11 DOI: 10.1038/s44286-025-00265-z
Sui Zhang
Advancing the production of covalent organic frameworks toward faster and more sustainable routes is crucial to realizing their potential in large-scale applications. Now, a variety of covalent organic framework platelets with high crystallinity can be produced rapidly using a pressure-assisted hot-pressing strategy.
将共价有机框架的生产推向更快和更可持续的路线对于实现其大规模应用的潜力至关重要。现在,使用压力辅助热压策略可以快速生产各种具有高结晶度的共价有机框架片。
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引用次数: 0
Spin-on deposition of amorphous zeolitic imidazolate framework films for lithography applications 光刻用非晶咪唑酸沸石骨架膜的自旋沉积
Pub Date : 2025-09-11 DOI: 10.1038/s44286-025-00273-z
Yurun Miao, Shunyi Zheng, Kayley E. Waltz, Mueed Ahmad, Xinpei Zhou, Yegui Zhou, Heting Wang, J. Anibal Boscoboinik, Qi Liu, Kumar Varoon Agrawal, Oleg Kostko, Liwei Zhuang, Michael Tsapatsis
Amorphous zeolitic imidazolate framework (aZIF) films have been recently introduced as resists for electron beam and extreme ultraviolet lithography. aZIFs are also being considered for separation applications, including thin film membranes. However, the reported methods for aZIF deposition are currently based on highly empirical trial-and-error approaches that hinder control of film composition, thickness and uniformity as well as scale-up and transferability to different coating geometries. This work presents a method for depositing aZIF films with controllable thickness using dilute precursors mixed immediately before encountering the substrate. Importantly, the method is amenable to quantitative analysis by computational fluid dynamics to extract intrinsic deposition rates and limiting reactant transport diffusivities, enabling predictive physics-based modeling of the deposition process. This allows the deposition method to be adapted for spin coating on silicon wafers to prepare high-quality aZIF films with consistently controlled thickness. Using this approach, high-resolution resist performance and wafer-scale use for beyond extreme-ultraviolet lithography of aZIF films is demonstrated. The lack of reliable coating methods for amorphous zeolitic imidazolate framework (aZIF) materials hinders their development for applications such as photolithography and separation membranes. Supported by computational fluid dynamics modeling, the authors develop a spin-coating technique to deposit aZIF films from dilute precursors and demonstrate their wafer-scale use in advanced lithographic processes.
无定形咪唑酸沸石骨架(aZIF)薄膜近年来被广泛应用于电子束光刻和极紫外光刻。azif也被考虑用于分离应用,包括薄膜。然而,目前报道的aZIF沉积方法是基于高度经验的试错方法,这阻碍了对薄膜成分、厚度和均匀性的控制,以及对不同涂层几何形状的放大和可转移性的控制。这项工作提出了一种沉积具有可控厚度的aZIF薄膜的方法,使用在遇到衬底之前立即混合的稀释前驱体。重要的是,该方法可以通过计算流体动力学进行定量分析,以提取固有沉积速率和限制反应物输运扩散系数,从而实现沉积过程的预测物理建模。这使得沉积方法适用于硅晶圆上的自旋镀膜,以制备具有一致控制厚度的高质量aZIF薄膜。利用这种方法,证明了aZIF薄膜的高分辨率抗蚀性能和超极紫外光刻的晶圆级应用。无定形沸石咪唑盐框架(aZIF)材料缺乏可靠的涂层方法,阻碍了其在光刻和分离膜等应用领域的发展。在计算流体动力学模型的支持下,作者开发了一种旋转镀膜技术,从稀释的前驱体中沉积aZIF薄膜,并展示了它们在先进光刻工艺中的晶圆级应用。
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引用次数: 0
Hot off the press 刚印出来的
Pub Date : 2025-09-11 DOI: 10.1038/s44286-025-00265-z
Sui Zhang
Advancing the production of covalent organic frameworks toward faster and more sustainable routes is crucial to realizing their potential in large-scale applications. Now, a variety of covalent organic framework platelets with high crystallinity can be produced rapidly using a pressure-assisted hot-pressing strategy.
将共价有机框架的生产推向更快和更可持续的路线对于实现其大规模应用的潜力至关重要。现在,使用压力辅助热压策略可以快速生产各种具有高结晶度的共价有机框架片。
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引用次数: 0
Spin-on deposition of amorphous zeolitic imidazolate framework films for lithography applications 光刻用非晶咪唑酸沸石骨架膜的自旋沉积
Pub Date : 2025-09-11 DOI: 10.1038/s44286-025-00273-z
Yurun Miao, Shunyi Zheng, Kayley E. Waltz, Mueed Ahmad, Xinpei Zhou, Yegui Zhou, Heting Wang, J. Anibal Boscoboinik, Qi Liu, Kumar Varoon Agrawal, Oleg Kostko, Liwei Zhuang, Michael Tsapatsis
Amorphous zeolitic imidazolate framework (aZIF) films have been recently introduced as resists for electron beam and extreme ultraviolet lithography. aZIFs are also being considered for separation applications, including thin film membranes. However, the reported methods for aZIF deposition are currently based on highly empirical trial-and-error approaches that hinder control of film composition, thickness and uniformity as well as scale-up and transferability to different coating geometries. This work presents a method for depositing aZIF films with controllable thickness using dilute precursors mixed immediately before encountering the substrate. Importantly, the method is amenable to quantitative analysis by computational fluid dynamics to extract intrinsic deposition rates and limiting reactant transport diffusivities, enabling predictive physics-based modeling of the deposition process. This allows the deposition method to be adapted for spin coating on silicon wafers to prepare high-quality aZIF films with consistently controlled thickness. Using this approach, high-resolution resist performance and wafer-scale use for beyond extreme-ultraviolet lithography of aZIF films is demonstrated. The lack of reliable coating methods for amorphous zeolitic imidazolate framework (aZIF) materials hinders their development for applications such as photolithography and separation membranes. Supported by computational fluid dynamics modeling, the authors develop a spin-coating technique to deposit aZIF films from dilute precursors and demonstrate their wafer-scale use in advanced lithographic processes.
无定形咪唑酸沸石骨架(aZIF)薄膜近年来被广泛应用于电子束光刻和极紫外光刻。azif也被考虑用于分离应用,包括薄膜。然而,目前报道的aZIF沉积方法是基于高度经验的试错方法,这阻碍了对薄膜成分、厚度和均匀性的控制,以及对不同涂层几何形状的放大和可转移性的控制。这项工作提出了一种沉积具有可控厚度的aZIF薄膜的方法,使用在遇到衬底之前立即混合的稀释前驱体。重要的是,该方法可以通过计算流体动力学进行定量分析,以提取固有沉积速率和限制反应物输运扩散系数,从而实现沉积过程的预测物理建模。这使得沉积方法适用于硅晶圆上的自旋镀膜,以制备具有一致控制厚度的高质量aZIF薄膜。利用这种方法,证明了aZIF薄膜的高分辨率抗蚀性能和超极紫外光刻的晶圆级应用。无定形沸石咪唑盐框架(aZIF)材料缺乏可靠的涂层方法,阻碍了其在光刻和分离膜等应用领域的发展。在计算流体动力学模型的支持下,作者开发了一种旋转镀膜技术,从稀释的前驱体中沉积aZIF薄膜,并展示了它们在先进光刻工艺中的晶圆级应用。
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引用次数: 0
Rapid solid-phase synthesis of highly crystalline covalent organic framework platelets 高结晶共价有机骨架片的快速固相合成
Pub Date : 2025-09-11 DOI: 10.1038/s44286-025-00277-9
Yehao Jin, Haozhi Wang, Hongfei Cheng, Mengchu Feng, Meng Zhang, Qingling Fu, Zhibing Sun, Xiantao Zeng, Yuze Sun, Wenjun Tuo, Bingbing Cheng, Shan Wang, Qianyou Wang, Qinglang Ma, Bo Wang
Covalent organic frameworks (COFs) have demonstrated superior performance in wide-ranging applications, yet their practical deployment has been long hindered by their inconvenient synthesis protocols. Toxic solvents, tedious procedures and long reaction times are typically involved in their synthesis, and microcrystalline powders are commonly obtained, which are unfavorable in practical use. Unfortunately, newly developed methods aiming to resolve these challenges often lead to deteriorated COF crystallinity and porosity. Here we develop a solid-phase hot-pressing method to fabricate 15 types of highly crystalline COF platelet of various linkage types, including imine-, hydrazone-, β-ketoenamine- and imide-linked COFs. Moreover, COF platelets with complex chemical structures, including a COF with three-dimensional geometry and a COF with multiple monomer components, have been successfully obtained. In particular, all COF platelets can be obtained within a short processing time of 0.5–5 min, with high crystallinity and porosity. Finally, as a proof-of-concept application, a β-ketoenamine-linked COF platelet is directly assembled into an atmospheric water harvesting device, demonstrating excellent water collecting performance. A solid-phase hot-pressing method is introduced, which can rapidly produce highly crystalline covalent organic framework platelets in a convenient, solvent-free manner. Fifteen platelets of various linkage types are produced, with a proof-of-concept demonstration of the resulting high-performing platelet type in an atmospheric water harvesting device.
共价有机框架(COFs)在广泛的应用中表现出优异的性能,但其实际部署长期受到其不方便的合成协议的阻碍。它们的合成通常涉及有毒的溶剂、繁琐的程序和较长的反应时间,并且通常得到微晶粉末,这些都不利于实际应用。不幸的是,旨在解决这些挑战的新开发方法往往会导致COF结晶度和孔隙度的恶化。本研究采用固相热压法制备了15种不同连接类型的高结晶型碳纳米管,包括亚胺、腙、β-酮胺和亚胺连接的碳纳米管。此外,还成功地获得了具有复杂化学结构的COF血小板,包括具有三维几何结构的COF和具有多个单体组分的COF。特别是,所有的COF血小板都可以在0.5-5分钟的短时间内获得,具有很高的结晶度和孔隙度。最后,作为概念验证应用,将β-酮胺联COF血小板直接组装到大气集水装置中,显示出优异的集水性能。介绍了一种固相热压法制备高结晶共价有机骨架片的方法。生产了15种不同连接类型的血小板,并在大气集水装置中进行了由此产生的高性能血小板类型的概念验证演示。
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引用次数: 0
Rapid solid-phase synthesis of highly crystalline covalent organic framework platelets 高结晶共价有机骨架片的快速固相合成
Pub Date : 2025-09-11 DOI: 10.1038/s44286-025-00277-9
Yehao Jin, Haozhi Wang, Hongfei Cheng, Mengchu Feng, Meng Zhang, Qingling Fu, Zhibing Sun, Xiantao Zeng, Yuze Sun, Wenjun Tuo, Bingbing Cheng, Shan Wang, Qianyou Wang, Qinglang Ma, Bo Wang
Covalent organic frameworks (COFs) have demonstrated superior performance in wide-ranging applications, yet their practical deployment has been long hindered by their inconvenient synthesis protocols. Toxic solvents, tedious procedures and long reaction times are typically involved in their synthesis, and microcrystalline powders are commonly obtained, which are unfavorable in practical use. Unfortunately, newly developed methods aiming to resolve these challenges often lead to deteriorated COF crystallinity and porosity. Here we develop a solid-phase hot-pressing method to fabricate 15 types of highly crystalline COF platelet of various linkage types, including imine-, hydrazone-, β-ketoenamine- and imide-linked COFs. Moreover, COF platelets with complex chemical structures, including a COF with three-dimensional geometry and a COF with multiple monomer components, have been successfully obtained. In particular, all COF platelets can be obtained within a short processing time of 0.5–5 min, with high crystallinity and porosity. Finally, as a proof-of-concept application, a β-ketoenamine-linked COF platelet is directly assembled into an atmospheric water harvesting device, demonstrating excellent water collecting performance. A solid-phase hot-pressing method is introduced, which can rapidly produce highly crystalline covalent organic framework platelets in a convenient, solvent-free manner. Fifteen platelets of various linkage types are produced, with a proof-of-concept demonstration of the resulting high-performing platelet type in an atmospheric water harvesting device.
共价有机框架(COFs)在广泛的应用中表现出优异的性能,但其实际部署长期受到其不方便的合成协议的阻碍。它们的合成通常涉及有毒的溶剂、繁琐的程序和较长的反应时间,并且通常得到微晶粉末,这些都不利于实际应用。不幸的是,旨在解决这些挑战的新开发方法往往会导致COF结晶度和孔隙度的恶化。本研究采用固相热压法制备了15种不同连接类型的高结晶型碳纳米管,包括亚胺、腙、β-酮胺和亚胺连接的碳纳米管。此外,还成功地获得了具有复杂化学结构的COF血小板,包括具有三维几何结构的COF和具有多个单体组分的COF。特别是,所有的COF血小板都可以在0.5-5分钟的短时间内获得,具有很高的结晶度和孔隙度。最后,作为概念验证应用,将β-酮胺联COF血小板直接组装到大气集水装置中,显示出优异的集水性能。介绍了一种固相热压法制备高结晶共价有机骨架片的方法。生产了15种不同连接类型的血小板,并在大气集水装置中进行了由此产生的高性能血小板类型的概念验证演示。
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引用次数: 0
Reflecting on barriers to continuous pharmaceutical crystallization 反思药物连续结晶的障碍
Pub Date : 2025-09-10 DOI: 10.1038/s44286-025-00268-w
Giovanni Aprile, Cedric Devos, Thomas Vetter, Gerard Capellades, Kevin P. Girard, Christopher L. Burcham, Venkateswarlu Bhamidi, Daniel Green, Torsten Stelzer, Richard D. Braatz, Allan S. Myerson
This Comment explores why continuous crystallization, despite its success in other industries, remains underutilized in pharmaceutical manufacturing. Among other challenges, we highlight two core issues: the lack of off-the-shelf small-scale equipment with integrated monitoring tools, and the absence of compatible continuous downstream units for filtration and drying, both of which limit practical implementation.
本评论探讨了为什么连续结晶尽管在其他行业取得了成功,但在制药制造中仍未得到充分利用。在其他挑战中,我们强调了两个核心问题:缺乏集成监测工具的现成小型设备,以及缺乏兼容的连续下游过滤和干燥装置,这两个问题都限制了实际实施。
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引用次数: 0
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Nature Chemical Engineering
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