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Publisher Correction: Quantification of enantiomorphs in chiral crystalline powders through three-dimensional electron diffraction 出版者更正:通过三维电子衍射测定手性晶体粉末中的对映异构体。
IF 20.2 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2025-11-06 DOI: 10.1038/s41557-025-02020-6
Junyi Hu, Zhuoya Dong, Chaoyang Chu, Yanhang Ma
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引用次数: 0
Co-electroreduction of CO and glyoxal promotes C3 products CO和乙二醛共电还原促进C3产物生成。
IF 20.2 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2025-11-04 DOI: 10.1038/s41557-025-01985-8
Roham Dorakhan, Shreya Sarkar, Erfan Shirzadi, Hafiz Ghulam Abbas, Ali Shayesteh, Sungjin Park, Jianan Erick Huang, David Sinton, Edward H. Sargent
The conversion of CO2 and CO using electricity offers a promising, sustainable approach to achieve valuable products. Although CO electroreduction to C1 and C2 products has seen rapid progress in efficiency and production rate, C3 synthesis remains a major challenge. Here we show that C3 products lie along the ethylene pathway by using a probe reactant and isotope-labelled CO. We find that glyoxal addition promotes C3 formation while suppressing acetate/ethanol production, while itself scarcely being consumed. Spectroscopy reveals lower CO* coverage in the presence of glyoxal. Reaction-order experiments show higher coverages of CO* and of OH− species linked to suppressing ethylene in favour of C3. By combining both strategies to suppress ethylene formation with an abundance of OH− and blocking acetate/ethanol formation with glyoxal, we report a high selectivity for C3 products, including a 53% Faradaic efficiency. These insights aid the design of future catalysts for C3 production. Electrochemical CO/CO2 reduction to multicarbon species represents an exciting approach to synthesize valuable products, but controllably linking three or more carbons remains a challenge. Now the pathway towards C–C coupling beyond two carbons has been shown using a probe reactant strategy to afford a 53% the selectivity towards C3+ oxygenates.
利用电力转换二氧化碳和一氧化碳为实现有价值的产品提供了一种有前途的、可持续的方法。虽然CO电还原制C1和C2产品在效率和生产率方面取得了快速进展,但C3合成仍然是主要挑战。通过使用探针反应物和同位素标记的CO,我们发现C3产物位于乙烯途径上。我们发现乙二醛的添加促进了C3的形成,同时抑制了乙酸/乙醇的产生,而它本身几乎没有被消耗。光谱学显示,乙二醛存在时CO*的覆盖率较低。反应顺序实验表明,抑制乙烯有利于C3的CO*和OH-物种的覆盖率较高。通过结合这两种策略,用丰富的OH-抑制乙烯的形成,用乙二醛阻断乙酸/乙醇的形成,我们报告了C3产物的高选择性,包括53%的法拉第效率。这些见解有助于未来C3生产催化剂的设计。
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引用次数: 0
Non-ribosomal peptide cyclase-directed chemoenzymatic synthesis of lariat lipopeptides 非核糖体肽环化酶定向化学酶合成lariat脂肽。
IF 20.2 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2025-11-04 DOI: 10.1038/s41557-025-01979-6
Masakazu Kobayashi, Kenichi Matsuda, Yuito Yamada, Rintaro Ichihara, Naho Onozawa, Hanako Fukano, Yoshihiko Hoshino, Aki Hirabayashi, Masato Suzuki, Akira Katsuyama, Satoshi Ichikawa, Toshiyuki Wakimoto
Lariat-shaped lipopeptides are important antimicrobial agents; however, their complex structures pose synthetic challenges that hamper efficient structural diversification. Here we report a new chemoenzymatic approach that facilitates access to lariat-shaped macrocycles. Unprotected, branched peptides bearing multiple nucleophiles, including a native amino terminus and a pseudo-amino terminus, were site-selectively cyclized using versatile non-ribosomal peptide cyclases, generating an array of lariat peptides with diverse sequences and ring sizes. The generality of this strategy was demonstrated using two penicillin-binding protein-type thioesterases, SurE and WolJ, as well as one type-I thioesterase, TycC thioesterase. Furthermore, the remaining nucleophile, which was not involved in the cyclization process, was exploited as a reactive handle for subsequent diversification via a site-selective acylation reaction (that is, Ser/Thr ligation). The tandem cyclization–acylation strategy enabled the one-pot, modular synthesis of lariat-shaped lipopeptides equipped with various acyl groups. Biological screening revealed that the site-selective acylation endowed the macrocyclic scaffolds with antimycobacterial activity and led to the identification of lipopeptides that inhibit 50% of growth at concentrations of 8–16 µg ml−1. Non-ribosomal peptide cyclases that catalyse head-to-tail macrocyclization are repurposed here to enable regioselective macrocyclization of branched peptides with multiple nucleophiles, affording lariat-shaped peptides with various sequences and ring sizes. Coupled with subsequent site-selective acylation chemistry, this chemoenzymatic approach facilitates modular access to structurally diverse lariat lipopeptides.
幼虫形脂肽是重要的抗菌药物;然而,它们复杂的结构构成了综合挑战,阻碍了有效的结构多样化。在这里,我们报告了一种新的化学酶方法,有助于获得lariat形大环。含有多个亲核试剂的未保护的支链肽,包括天然氨基端和伪氨基端,使用多功能非核糖体肽环化酶选择性地环化,产生一系列具有不同序列和环大小的支链肽。使用两种青霉素结合蛋白型硫酯酶(SurE和WolJ)以及一种i型硫酯酶(TycC硫酯酶)证明了这种策略的普遍性。此外,未参与环化过程的剩余亲核试剂被利用为通过位点选择性酰化反应(即Ser/Thr连接)进行后续多样化的反应柄。串联环化-酰化策略使一锅,模块化合成lariant形状的脂肽配备了各种酰基。生物学筛选表明,位点选择性酰化使大环支架具有抗细菌活性,并鉴定出在8-16µg ml-1浓度下抑制50%生长的脂肽。
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引用次数: 0
Reducing the carbon footprint of chemistry labs 减少化学实验室的碳足迹
IF 20.2 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2025-11-03 DOI: 10.1038/s41557-025-01988-5
Joan Serrano-Plana
Philippe Loubet and André Estévez-Torres, from Bordeaux INP and CNRS-University of Lille respectively, talk to Nature Chemistry about assessing the carbon footprint of chemistry laboratories, and approaches to reducing their environmental impact.
分别来自波尔多国家化学研究所和法国国家科学研究院-里尔大学的Philippe Loubet和andr est - torres在《自然化学》杂志上谈到了评估化学实验室的碳足迹,以及减少它们对环境影响的方法。
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引用次数: 0
CO2 sorption in fluorinated non-porous coordination polymers 含氟无孔配位聚合物对CO2的吸附
IF 20.2 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2025-11-03 DOI: 10.1038/s41557-025-01982-x
Tobias Pausch, Bernd M. Schmidt
Porous materials have long been a focus of research for gas separations. Now, flexible, highly fluorinated coordination polymers lacking permanently built-in cavities have been shown to adsorb CO2 through a dissolution-like uptake process. The presence of dynamic perfluoroalkyl regions within the crystals is key to enabling transient porosity and establishing strong interactions with CO2.
多孔材料一直是气体分离领域的研究热点。现在,缺乏永久内置空腔的柔性高氟配位聚合物已被证明可以通过类似溶解的吸收过程吸附二氧化碳。晶体内动态全氟烷基区域的存在是实现瞬态孔隙和与CO2建立强相互作用的关键。
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引用次数: 0
Extinguishing the saturation horizon 熄灭饱和地平线
IF 20.2 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2025-11-03 DOI: 10.1038/s41557-025-01983-w
Bruce C. Gibb
The buffering capacity of the world’s oceans has helped offset the effects of CO2 emissions on climate; however, it is not without cost. Bruce Gibb discusses the causes, the chemistry and the consequences of ocean acidification.
世界海洋的缓冲能力帮助抵消了二氧化碳排放对气候的影响;然而,这并非没有成本。布鲁斯·吉布讨论了海洋酸化的原因、化学成分和后果。
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引用次数: 0
Ribose at the heart of life 核糖是生命的核心
IF 20.2 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2025-11-03 DOI: 10.1038/s41557-025-01978-7
Benjamin N. Bhawal
Benjamin N. Bhawal examines the enigmatic history of ribose in chemistry, its multifaceted structure, and its role in the origin of life and the design of future therapeutics.
Benjamin N. Bhawal研究了核糖在化学中的神秘历史,它的多面结构,以及它在生命起源和未来治疗设计中的作用。
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引用次数: 0
Discovery of highly fluorescent covalent organic frameworks through AI-assisted iterative experiment–learning cycles 通过人工智能辅助迭代实验学习周期发现高荧光共价有机框架
IF 20.2 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2025-10-31 DOI: 10.1038/s41557-025-01974-x
Liang Zhang, Jiahui Du, Zikai Xie, Linjiang Chen, Wenlang Li, Weihang Geng, Yi Zhou, Xinwen Ou, Chengtao Gong, Yijun Gao, Shan He, Chunxing Yan, Chengbin Zhao, Yantian Jiao, Sheng-Yi Yang, Bing Huang, Jacky W. Y. Lam, Jun Qian, Jun Jiang, Ben Zhong Tang, Hexiang Deng
The development of porous crystalline materials with targeted properties remains challenging owing to the vast chemical design space and the high cost of experimental screening. Here we develop an artificial-intelligence-assisted interactive experiment–learning evolution approach to accelerate the discovery of highly fluorescent covalent organic frameworks (COFs). This approach integrates model recommendation, experimental validation and active learning in an iterative refinement cycle, allowing the artificial intelligence model to evolve along the process. Among the 520 possible combinations derived from a library of 20 amine and 26 aldehyde building blocks, we needed to experimentally evaluate only 11 COFs to identify one with a remarkable photoluminescence quantum yield of 41.3%. By embedding electronic configuration and quantum-level insights into the learning process, this approach transcends intuition based on statistical analysis intuition to enable material discovery driven by chemical knowledge, enhancing prediction reliability and interpretability. We also reveal the fluorescence mechanism of these COFs and outline the critical role of HOMO–LUMO alignment and excited-state charge distribution. Developing porous crystalline materials with tailored properties is challenging because of the vast design space and the high cost of screening. Now, highly fluorescent covalent organic frameworks have been identified through an AI-assisted iterative experiment–learning cycle workflow that integrates electronic configuration and quantum-level insights into the learning process.
由于巨大的化学设计空间和高昂的实验筛选成本,具有目标性能的多孔晶体材料的开发仍然具有挑战性。在这里,我们开发了一种人工智能辅助的交互式实验学习进化方法,以加速发现高荧光共价有机框架(COFs)。这种方法将模型推荐、实验验证和主动学习集成在一个迭代的改进周期中,允许人工智能模型沿着这个过程发展。从20个胺基和26个醛基组成的文库中得到520种可能的组合,我们只需要对11种COFs进行实验评估,就能确定一种具有41.3%的显着光致发光量子产率。通过在学习过程中嵌入电子结构和量子级洞察力,该方法超越了基于统计分析直觉的直觉,从而实现了由化学知识驱动的材料发现,提高了预测的可靠性和可解释性。我们还揭示了这些COFs的荧光机理,并概述了HOMO-LUMO排列和激发态电荷分布的关键作用。由于巨大的设计空间和高昂的筛选成本,开发具有定制性能的多孔晶体材料具有挑战性。现在,通过人工智能辅助的迭代实验学习周期工作流程,已经确定了高荧光共价有机框架,该工作流程将电子配置和量子级见解集成到学习过程中。
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引用次数: 0
Profiling the proteome-wide selectivity of diverse electrophiles 分析不同亲电试剂的蛋白质组选择性
IF 20.2 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2025-10-30 DOI: 10.1038/s41557-025-01902-z
Patrick R. A. Zanon, Fengchao Yu, Patricia Z. Musacchio, Lisa Lewald, Michael Zollo, Kristina Krauskopf, Dario Mrdović, Patrick Raunft, Thomas E. Maher, Marko Cigler, Christopher J. Chang, Kathrin Lang, F. Dean Toste, Alexey I. Nesvizhskii, Stephan M. Hacker
Covalent inhibitors that do not rely on hijacking enzymatic activity have mainly been limited to those targeting cysteine residues. The development of such cysteine-directed covalent inhibitors has greatly profited from the use of competitive residue-specific proteomics to determine their proteome-wide selectivity. Several probes have been developed to monitor other amino acids using this technology, and many more electrophiles exist to modify proteins. Nevertheless, there has been a lack of direct, proteome-wide comparisons of the selectivity of diverse electrophiles. Here we developed an unbiased workflow to analyse electrophile selectivity proteome-wide and used it to directly compare 56 alkyne probes containing diverse reactive groups. In this way, we verified and identified probes to monitor a total of nine different amino acids, as well as the protein amino terminus, across the proteome. Covalent inhibitors are powerful entities in drug discovery. Now the amino acid selectivity and reactivity of a diverse electrophile library have been assessed proteome-wide using an unbiased workflow. This comparative analysis and the probes described could help guide the discovery and design of covalent ligands targeting residues beyond cysteine.
不依赖于劫持酶活性的共价抑制剂主要局限于那些针对半胱氨酸残基的抑制剂。这种半胱氨酸导向的共价抑制剂的发展很大程度上得益于使用竞争性残基特异性蛋白质组学来确定其蛋白质组范围的选择性。已经开发了几种探针来使用这种技术监测其他氨基酸,并且存在更多的亲电试剂来修饰蛋白质。然而,对不同亲电试剂的选择性缺乏直接的、蛋白质组范围内的比较。在这里,我们开发了一种无偏倚的工作流程来分析亲电试剂在蛋白质组范围内的选择性,并使用它直接比较56个含有不同反应基团的炔探针。通过这种方式,我们验证并鉴定了探针,以监测整个蛋白质组中总共九种不同的氨基酸以及蛋白质氨基端。
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引用次数: 0
A pipeline for proteome-wide analysis of electrophile selectivity 蛋白质组范围内亲电试剂选择性分析的管道
IF 20.2 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2025-10-30 DOI: 10.1038/s41557-025-01906-9
Jeyun Jo, Matthew Bogyo
In the growing field of chemical proteomics, there is a need for general methods to map the reactivity profiles of covalent probes in complex proteomes. Now, a completely unbiased proteomic workflow has been developed that enables global characterization of the amino acid residues, chemically labelled by reactive electrophilic probes.
在化学蛋白质组学的发展中,需要一种通用的方法来绘制复杂蛋白质组中共价探针的反应性谱。现在,一种完全无偏倚的蛋白质组学工作流程已经开发出来,可以通过反应性亲电探针进行化学标记,对氨基酸残基进行全局表征。
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引用次数: 0
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Nature chemistry
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