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Depolymerizing off-the-shelf polymethacrylates with visible light 用可见光解聚现成的聚甲基丙烯酸酯
IF 19.1 1区 化学
Chem Pub Date : 2025-04-10 DOI: 10.1016/j.chempr.2025.102540
Nicholas Ballard , Haritz Sardon
{"title":"Depolymerizing off-the-shelf polymethacrylates with visible light","authors":"Nicholas Ballard ,&nbsp;Haritz Sardon","doi":"10.1016/j.chempr.2025.102540","DOIUrl":"10.1016/j.chempr.2025.102540","url":null,"abstract":"<div><div>As the recycling of polymer materials becomes a topic of growing societal importance, there is a need to develop robust methods for dealing with plastic waste. In a recent article in <em>Science</em>, Anastasaki and co-workers report a route for the efficient chemical recycling of commercial polymethacrylates via low-temperature depolymerization using visible light.</div></div>","PeriodicalId":268,"journal":{"name":"Chem","volume":"11 4","pages":"Article 102540"},"PeriodicalIF":19.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143703516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Intramolecular through-space heavy-atom effect in π-stacked MR-TADF emitters π堆叠MR-TADF发射体分子内穿越空间重原子效应
IF 19.1 1区 化学
Chem Pub Date : 2025-04-10 DOI: 10.1016/j.chempr.2024.11.015
Sheng-Yi Yang , Cheng Liu , Fei Wang , Ben Zhong Tang
{"title":"Intramolecular through-space heavy-atom effect in π-stacked MR-TADF emitters","authors":"Sheng-Yi Yang ,&nbsp;Cheng Liu ,&nbsp;Fei Wang ,&nbsp;Ben Zhong Tang","doi":"10.1016/j.chempr.2024.11.015","DOIUrl":"10.1016/j.chempr.2024.11.015","url":null,"abstract":"<div><div>In this issue of <em>Chem</em>, Jiang and colleagues utilized a spiro-fluorene unit as a π-bridge to construct a series of π-stacked multi-resonance thermally activated delayed fluorescence emitters. By introducing different heavy atoms through chemical bonding, they revealed the impact of the intramolecular through-space heavy-atom effect on the optoelectronic properties of the molecules.</div></div>","PeriodicalId":268,"journal":{"name":"Chem","volume":"11 4","pages":"Article 102377"},"PeriodicalIF":19.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electrolyte: The cornerstone of commercializing the electrosynthesis of H2O2 电解液：电合成H2O2商业化的基石
IF 19.1 1区 化学
Chem Pub Date : 2025-04-10 DOI: 10.1016/j.chempr.2025.102536
Chang Long (隆昶) , Zhiyong Tang (唐智勇)
{"title":"Electrolyte: The cornerstone of commercializing the electrosynthesis of H2O2","authors":"Chang Long (隆昶) ,&nbsp;Zhiyong Tang (唐智勇)","doi":"10.1016/j.chempr.2025.102536","DOIUrl":"10.1016/j.chempr.2025.102536","url":null,"abstract":"<div><div>In this issue of <em>Chem</em>, Strasser and co-workers introduce an electrolyte design that leverages the alkali-metal enhancement effect for the sustainable electrosynthesis of H<sub>2</sub>O<sub>2</sub> from oxygen. This little electrolyte alteration, combined with a cost-effective commercial carbon-based gas-diffusion electrode, represents a significant advancement toward the green production of H<sub>2</sub>O<sub>2</sub>.</div></div>","PeriodicalId":268,"journal":{"name":"Chem","volume":"11 4","pages":"Article 102536"},"PeriodicalIF":19.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sequence-specific, mechanophore-free mechanochemistry of DNA 序列特异性，无机械载体的DNA机械化学
IF 19.1 1区 化学
Chem Pub Date : 2025-04-10 DOI: 10.1016/j.chempr.2024.11.014
Johannes Hahmann , Boris N. Schüpp , Aman Ishaqat , Arjuna Selvakumar , Robert Göstl , Frauke Gräter , Andreas Herrmann
{"title":"Sequence-specific, mechanophore-free mechanochemistry of DNA","authors":"Johannes Hahmann ,&nbsp;Boris N. Schüpp ,&nbsp;Aman Ishaqat ,&nbsp;Arjuna Selvakumar ,&nbsp;Robert Göstl ,&nbsp;Frauke Gräter ,&nbsp;Andreas Herrmann","doi":"10.1016/j.chempr.2024.11.014","DOIUrl":"10.1016/j.chempr.2024.11.014","url":null,"abstract":"<div><div>Nucleic acids, such as DNA, are integral components of biological systems in that they steer many cellular processes and biotechnological applications. In addition, their monomer-precise sequence and accurately predictable structure render them an excellent model for exploring fundamental problems in nanotechnology and polymer science. In the field of polymer mechanochemistry, predetermined breaking points, called mechanophores, are used to endow macromolecules with chain-scission selectivity when subjected to external forces. However, this approach entails cumbersome chemical synthesis and limited outcome analysis. Here, we show the mechanophore-free, near-nucleotide-precise scission of nicked double-stranded DNA in a combined experimental and computational approach. We leverage next-generation sequencing to achieve monomer-level precision in assessing chain scission. Additionally, we monitor and control the scission distribution on the polymer’s backbone. Our research highlights the potential of DNA as a model polymer in the field of polymer mechanochemistry.</div></div>","PeriodicalId":268,"journal":{"name":"Chem","volume":"11 4","pages":"Article 102376"},"PeriodicalIF":19.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142912261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gold metallacages: Design principles and applications 金金属：设计原则和应用
IF 23.5 1区 化学
Chem Pub Date : 2025-04-10 DOI: 10.1016/j.chempr.2025.102502
Sophie R. Thomas, Nina Willnhammer, Angela Casini, Guillermo Moreno-Alcántar
{"title":"Gold metallacages: Design principles and applications","authors":"Sophie R. Thomas, Nina Willnhammer, Angela Casini, Guillermo Moreno-Alcántar","doi":"10.1016/j.chempr.2025.102502","DOIUrl":"https://doi.org/10.1016/j.chempr.2025.102502","url":null,"abstract":"Metallacages (MCgs) are three-dimensional (3D)-supramolecular coordination complexes (SCCs) obtained by the self-assembly of metal ions with donor ligands, which are arranged to delimit a cavity. Recently, the number of structural studies using gold ions in the construction of metallacages and the first efforts to design these systems for diverse applications have shed light on the potential of gold MCgs to become useful supramolecular systems in sensing and separation, catalysis, and medicine. This work critically revises the design principles of gold MCgs and their early applications, highlighting the main challenges and opportunities for developing functional assemblies.","PeriodicalId":268,"journal":{"name":"Chem","volume":"183 1","pages":""},"PeriodicalIF":23.5,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Flipping the script: Predicting chemical composition in metal-halide perovskites from optical spectroscopy 翻转剧本：从光谱学预测金属卤化物钙钛矿的化学成分
IF 19.1 1区 化学
Chem Pub Date : 2025-04-10 DOI: 10.1016/j.chempr.2025.102535
Alexander J. Norquist
{"title":"Flipping the script: Predicting chemical composition in metal-halide perovskites from optical spectroscopy","authors":"Alexander J. Norquist","doi":"10.1016/j.chempr.2025.102535","DOIUrl":"10.1016/j.chempr.2025.102535","url":null,"abstract":"<div><div>In this issue of <em>Chem</em>, Harel and co-workers report a chemical-space-property descriptor model capable of predicting chemical compositions of metal halide perovskites by using fast optical analyses. This model is designed to enable facile monitoring of chemical composition and assessment of material properties in industrial-scale syntheses.</div></div>","PeriodicalId":268,"journal":{"name":"Chem","volume":"11 4","pages":"Article 102535"},"PeriodicalIF":19.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chemical space-property predictor model of perovskite materials by high-throughput synthesis and artificial neural networks 基于高通量合成和人工神经网络的钙钛矿材料化学空间性质预测模型
IF 19.1 1区 化学
Chem Pub Date : 2025-04-10 DOI: 10.1016/j.chempr.2024.10.027
Md. Ataur Rahman , Md. Shahjahan , Yaqing Zhang , Rihan Wu , Elad Harel
{"title":"Chemical space-property predictor model of perovskite materials by high-throughput synthesis and artificial neural networks","authors":"Md. Ataur Rahman ,&nbsp;Md. Shahjahan ,&nbsp;Yaqing Zhang ,&nbsp;Rihan Wu ,&nbsp;Elad Harel","doi":"10.1016/j.chempr.2024.10.027","DOIUrl":"10.1016/j.chempr.2024.10.027","url":null,"abstract":"<div><div>Lead-halide perovskites exhibit highly tunable optical properties, making them suitable for applications in photovoltaics and optoelectronics. Although considerable effort has gone into the development of methods that accurately predict the optical properties of perovskite materials based on structure, the reverse—predicting composition from optical data—is far less explored. In this study, high-throughput approaches were employed to synthesize and spectroscopically analyze a wide array of perovskites composed of mono-halide, di-halide, and tri-halides with a general formula, MA<sub>x</sub>Cs<sub>1−x</sub>Pb(Cl<sub>x</sub>Br<sub>y</sub>I<sub>1−x−y</sub>)<sub>3</sub>. The spectroscopic data were used to train an artificial neural network (ANN)-based chemical space-property predictor model designed to work with multiple responses and multiple predictors. The model predicted the chemical composition of perovskites from terahertz (THz) Raman spectroscopic data with approximately 85% accuracy. When the dataset also incorporated UV-visible spectroscopic data, the accuracy increased to nearly 92%. This study opens the possibility of real-time monitoring and defect detection, degradation analysis, and streamlined material selection and optimization of perovskite materials in industrial production.</div></div>","PeriodicalId":268,"journal":{"name":"Chem","volume":"11 4","pages":"Article 102360"},"PeriodicalIF":19.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142783066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pilot-scale reductive catalytic depolymerization of lignin: Challenges and guidelines 木质素的中试还原催化解聚：挑战和指南
IF 19.1 1区 化学
Chem Pub Date : 2025-04-10 DOI: 10.1016/j.chempr.2025.102525
Brent Daelemans , Paul Jusner , Balaji Sridharan , Miet Van Dael , Kelly Servaes , Karolien Vanbroekhoven , Elias Feghali
{"title":"Pilot-scale reductive catalytic depolymerization of lignin: Challenges and guidelines","authors":"Brent Daelemans ,&nbsp;Paul Jusner ,&nbsp;Balaji Sridharan ,&nbsp;Miet Van Dael ,&nbsp;Kelly Servaes ,&nbsp;Karolien Vanbroekhoven ,&nbsp;Elias Feghali","doi":"10.1016/j.chempr.2025.102525","DOIUrl":"10.1016/j.chempr.2025.102525","url":null,"abstract":"<div><div>The valorization of renewable materials is critical to improving the circularity of the chemical industry. This Synergy article describes how lignin waste streams can be upgraded to valuable resources through reductive catalytic depolymerization. The article presents the challenges linked to the upscaling of this process and offers guidelines for performing the process in a successful and economic manner.</div></div>","PeriodicalId":268,"journal":{"name":"Chem","volume":"11 4","pages":"Article 102525"},"PeriodicalIF":19.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Live bacterial chemistry in biomedicine 生物医学中的活细菌化学
IF 19.1 1区 化学
Chem Pub Date : 2025-04-10 DOI: 10.1016/j.chempr.2025.102436
Senfeng Zhao , Qian Chen , Qimanguli Saiding , Soohwan An , Zhuoming Zhou , Na Kong , Yujing J. Heng , Reza Abdi , Wei Tao
{"title":"Live bacterial chemistry in biomedicine","authors":"Senfeng Zhao ,&nbsp;Qian Chen ,&nbsp;Qimanguli Saiding ,&nbsp;Soohwan An ,&nbsp;Zhuoming Zhou ,&nbsp;Na Kong ,&nbsp;Yujing J. Heng ,&nbsp;Reza Abdi ,&nbsp;Wei Tao","doi":"10.1016/j.chempr.2025.102436","DOIUrl":"10.1016/j.chempr.2025.102436","url":null,"abstract":"<div><div>Live bacteria-based living materials have gained unprecedented attention in the biomedical landscape due to their natural host compatibility and unique dynamic accommodation. In recent decades, the strategic application of live bacteria has yielded revolutionary biomedical outcomes that standardized methods cannot achieve. However, misusing live bacteria may lead to infections, toxicity, or even biochemical dangers for patients. Fortunately, bacteria’s nature as single-celled organisms with relatively well-defined chemical compositions is advantageous. Leveraging our deep understanding of live bacterial chemistry and using chemical tools for management allows us to customize live bacterial behaviors and functions on demand. In this perspective, we will summarize the programmable chemical sites on live bacteria and the potential physical, chemical, or biological functions achievable through chemical engineering. We will focus on chemical approaches to live bacteria-based biomedicine to discuss and highlight how a more defined application of engineered live bacteria concepts could accelerate future clinical transformation.</div></div>","PeriodicalId":268,"journal":{"name":"Chem","volume":"11 4","pages":"Article 102436"},"PeriodicalIF":19.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Drinking water purification using metal-organic frameworks: Removal of disinfection by-products 利用金属有机框架净化饮用水：去除消毒副产品
IF 19.1 1区 化学
Chem Pub Date : 2025-04-10 DOI: 10.1016/j.chempr.2024.10.023
Gabriel Sanchez-Cano , Pablo Cristobal-Cueto , Lydia Saez , Antonio Lastra , Ana Martin-Calvo , Juan José Gutiérrez-Sevillano , Sofía Calero , Sara Rojas , Patricia Horcajada
{"title":"Drinking water purification using metal-organic frameworks: Removal of disinfection by-products","authors":"Gabriel Sanchez-Cano ,&nbsp;Pablo Cristobal-Cueto ,&nbsp;Lydia Saez ,&nbsp;Antonio Lastra ,&nbsp;Ana Martin-Calvo ,&nbsp;Juan José Gutiérrez-Sevillano ,&nbsp;Sofía Calero ,&nbsp;Sara Rojas ,&nbsp;Patricia Horcajada","doi":"10.1016/j.chempr.2024.10.023","DOIUrl":"10.1016/j.chempr.2024.10.023","url":null,"abstract":"<div><div>Water disinfection is one of the most challenging processes for public health. Nevertheless, this process can generate inorganic by-products (chlorite [ClO<sub>2</sub><sup>−</sup>] and chlorate [ClO<sub>3</sub><sup>−</sup>]) associated with human diseases. Recently, the European Union established a permissible maximum concentration of 0.25 mg⋅L<sup>−1</sup> for both oxyanions in drinking water; thus, the existing technologies have to be adapted. Here, the earliest use of metal-organic frameworks (MOFs) in the elimination of the disinfection by-products ClO<sub>2</sub><sup>−</sup> and ClO<sub>3</sub><sup>−</sup> from fresh water is presented. Among the Fe-MOFs proposed, the robust MIL-88B-NH<sub>2</sub> demonstrated exceptional oxyanions elimination capacities (100% and 30% of ClO<sub>2</sub><sup>−</sup> and ClO<sub>3</sub><sup>−</sup> in 1 and 5 min, respectively). Based on these results, a continuous-flow device based on MIL-88B-NH<sub>2</sub> was tested under simulated realistic conditions, achieving high oxyanions elimination capacities, and the reusability of the system was demonstrated. This pioneering work opens new perspectives in the implementation of MOFs in real drinking water treatment plants (DWTPs).</div></div>","PeriodicalId":268,"journal":{"name":"Chem","volume":"11 4","pages":"Article 102356"},"PeriodicalIF":19.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142678749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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