RSC Mechanochemistry最新文献_第2页

Correction: Mechanochemical synthesis of eucairite CuAgSe and investigation of physicochemical and transport properties 修正：长角云母CuAgSe的机械化学合成及理化性质和输运性质的研究

RSC Mechanochemistry Pub Date : 2025-06-20 DOI: 10.1039/D5MR90018B

Dáša Drenčaková, Marcela Achimovičová, Matej Baláž, Jiří Navrátil, Erika Tóthová, Maksym Lisnichuk, Jaroslav Briančin, Viktor Puchý and Tomáš Plecháček

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Moving mechanochemistry forward: reimagining inorganic chemistry through mechanochemistry 推动机械化学前进：通过机械化学重塑无机化学

RSC Mechanochemistry Pub Date : 2025-06-20 DOI: 10.1039/D5MR90017D

Felipe García, Mamoru Senna and Vladimir Šepelák

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Outstanding Reviewers for RSC Mechanochemistry in 2024 荣获2024年英国皇家科学委员会机械化学杰出评审员

RSC Mechanochemistry Pub Date : 2025-06-17 DOI: 10.1039/D5MR90016F

引用次数: 0

Mechanochemical McMurry reaction† 机械化学麦克默里反应

RSC Mechanochemistry Pub Date : 2025-06-13 DOI: 10.1039/D5MR00065C

Sayan K. Jana, Sakshi Ajay Shirsath, Debjyoti Bhattacharjee, Pramod Kumar and Biplab Maji

引用次数: 0

Mechanism of plasmon-driven molecular jackhammers in mechanical opening and disassembly of membranes† 等离子体驱动分子风钻机械打开和拆卸膜的机理

RSC Mechanochemistry Pub Date : 2025-06-12 DOI: 10.1039/D4MR00083H

Ciceron Ayala-Orozco, Vardan Vardanyan, Katherine Lopez-Jaime, Zicheng Wang, Jorge M. Seminario, Anatoly B. Kolomeisky and James M. Tour

{"title":"Mechanism of plasmon-driven molecular jackhammers in mechanical opening and disassembly of membranes†","authors":"Ciceron Ayala-Orozco, Vardan Vardanyan, Katherine Lopez-Jaime, Zicheng Wang, Jorge M. Seminario, Anatoly B. Kolomeisky and James M. Tour","doi":"10.1039/D4MR00083H","DOIUrl":"https://doi.org/10.1039/D4MR00083H","url":null,"abstract":"Plasmon-driven molecular jackhammers (MJHs) are a type of molecular machine that converts photon energy into mechanical energy. Upon insertion into lipid bilayers followed by near-infrared light activation, plasmon-driven MJH mechanically open cellular membranes through a process that is not inhibited by reactive oxygen species (ROS) inhibitors and does not induce thermal heating. The molecular mechanism by which the plasmon-driven MJH open and disassemble cellular membranes has not hitherto been established. Herein, we differentiate the mechanical mechanism in MJHs from the ROS-mediated chemical effects in photodynamic therapy or thermal effects in photothermal therapy. We further present a detailed molecular mechanism for the plasmon-driven MJH disassembly of lipid bilayers. The mechanical studies on plasmon-driven MJH disassembly processes on artificial lipid bilayers were done using ROS-unreactive saturated phytanoyl phospholipids. We were able to capture in real-time the lipid bilayer disassembly by MJHs using fluorescence confocal microscopy on saturated phospholipids in giant unilamellar vesicles.","PeriodicalId":101140,"journal":{"name":"RSC Mechanochemistry","volume":" 5","pages":" 706-722"},"PeriodicalIF":0.0,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/mr/d4mr00083h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144929129","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

How external forces affect the degradation properties of perfluorooctanoic acid in mechanochemical degradation: a DFT study† 机械化学降解中，外力如何影响全氟辛酸的降解特性：一项DFT研究†

RSC Mechanochemistry Pub Date : 2025-06-11 DOI: 10.1039/D5MR00048C

Chuan Wang, Cheng Yang, Jie Wu, Ziqiu Wang and Kun Yang

{"title":"How external forces affect the degradation properties of perfluorooctanoic acid in mechanochemical degradation: a DFT study†","authors":"Chuan Wang, Cheng Yang, Jie Wu, Ziqiu Wang and Kun Yang","doi":"10.1039/D5MR00048C","DOIUrl":"https://doi.org/10.1039/D5MR00048C","url":null,"abstract":"Perfluorooctanoic acid (PFOA), recognized as a persistent organic pollutant, poses a serious threat to the environment and human health. Currently, mechanochemical degradation is considered a highly promising technology for the degradation of PFOA. This study systematically employs density functional theory (DFT) and the COGEF (COnstrained GEometry to simulate Forces) model to deeply investigate the impact of external forces on the degradation properties of PFOA molecules. Through quantum chemical calculations, we analyzed in detail the changes in the electronic structure, chemical reactivity, and decarboxylation reaction process of PFOA molecules under the influence of external forces. The results show that the application of external forces significantly alters the electronic density distribution of PFOA molecules, thereby enhancing their reactive activity, especially in terms of nucleophilicity and radical reactivity at the carboxylate end. Moreover, the application of external mechanical force reduces the Gibbs free energy change of the decarboxylation reaction, thereby making the reaction energetically favorable. This study not only theoretically elucidates the mechanism of mechanochemical degradation of PFOA, but also provides a basis for optimizing its mechanochemical degradation technology. In addition, this study also provides a systematic theoretical perspective for exploring the mechanisms of mechanochemical degradation.","PeriodicalId":101140,"journal":{"name":"RSC Mechanochemistry","volume":" 5","pages":" 692-705"},"PeriodicalIF":0.0,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/mr/d5mr00048c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144929126","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

Amorphous quininium aspirinate from neat mechanochemistry: diffracting nanocrystalline domains and quick recrystallization upon exposure to solvent vapours†‡ 非晶态阿斯匹林醌从整齐的机械化学：衍射纳米晶域和快速再结晶暴露于溶剂蒸汽†‡

RSC Mechanochemistry Pub Date : 2025-06-10 DOI: 10.1039/D5MR00028A

Silvina Pagola, James Howard, Johannes Merkelbach and Danny Stam

{"title":"Amorphous quininium aspirinate from neat mechanochemistry: diffracting nanocrystalline domains and quick recrystallization upon exposure to solvent vapours†‡","authors":"Silvina Pagola, James Howard, Johannes Merkelbach and Danny Stam","doi":"10.1039/D5MR00028A","DOIUrl":"https://doi.org/10.1039/D5MR00028A","url":null,"abstract":"Quininium aspirinate is mechanochemically prepared as a crystalline solid by liquid-assisted grinding, or as an amorphous phase (as determined by X-ray powder diffraction), by neat grinding or neat ball milling. Our previous work demonstrated using FT-IR spectroscopy that a mechanochemical reaction had occurred in the mechanically treated neat mixtures. Herein is reported that microcrystal electron diffraction (microED) afforded the discovery of two diffracting micron-size particles in the amorphous powder synthesized by manual grinding, among a majority of non-diffracting particles. Remarkably, microED data of one of them led to the known lattice parameters of quininium aspirinate. Furthermore, this so-called ‘X-ray amorphous’ phase quickly recrystallizes upon exposure to vapors of N,N-dimethylformamide, or hexane vapours (at a lower rate); but it remains amorphous for longer than 20 months when stored at ambient conditions in a closed container. The lattice parameters and the degrees of crystallinity of both recrystallized materials are identical within the experimental error. However, slightly more intense and better-resolved X-ray powder diffraction peaks are observed in the material recrystallized from N,N-dimethylformamide vapours than in the analogous phase recovered from hexane. As expected, Williamson–Hall graphs lead to a larger average crystalline domain size for the former solid. These results illustrate the use of microED for the investigation of structural features in amorphous phases, and the generic role of the solvent vapours in promoting their recrystallization.","PeriodicalId":101140,"journal":{"name":"RSC Mechanochemistry","volume":" 5","pages":" 670-679"},"PeriodicalIF":0.0,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/mr/d5mr00028a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144929143","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

Dry-vortex grinding facilitates a [2 + 2] cycloaddition reaction that triggers a cascade-like reaction that improves the yield under substoichiometric conditions† 干涡研磨促进了[2 + 2]环加成反应，引发了类似级联的反应，在亚化学计量条件下提高了产率

RSC Mechanochemistry Pub Date : 2025-06-05 DOI: 10.1039/D5MR00025D

Angela A. Colmanet, Daniel K. Unruh and Ryan H. Groeneman

引用次数: 0

Mechanochemistry assisted aqueous two-phase extraction: an efficient technique to extract high-purity juglone from the bark of Juglans mandshurica 机械化学辅助双水相萃取：从水杨树树皮中提取高纯度核桃胶酮的高效工艺

RSC Mechanochemistry Pub Date : 2025-06-03 DOI: 10.1039/D4MR00132J

Shuang Wei, Xinbiao Zhou and Jun Xi

{"title":"Mechanochemistry assisted aqueous two-phase extraction: an efficient technique to extract high-purity juglone from the bark of Juglans mandshurica","authors":"Shuang Wei, Xinbiao Zhou and Jun Xi","doi":"10.1039/D4MR00132J","DOIUrl":"https://doi.org/10.1039/D4MR00132J","url":null,"abstract":"The bark of Juglans mandshurica (BJM) is a Chinese herbal medicine containing a variety of nutrients and pharmacologically active compounds. Juglone, one of the important active ingredients in BJM, has been shown by many pharmacological studies to have antioxidant, antibacterial, antiviral, anti-tumor, immunoregulatory and other pharmacological properties. Mechanochemistry assisted aqueous two-phase extraction (MAATPE) was successfully established to extract juglone from BJM, combining the purification effect of an alcohol/salt aqueous two-phase system (ATPS) with the high efficiency of mechanochemistry. The key parameters of MAATPE were systematically optimized through single factor analysis and response surface methodology. Under the optimal conditions of an ethanol/NaH2PO4 aqueous two-phase system as the liquid reagent, 21.5% (w/w) ethanol concentration, 28% (w/w) NaH2PO4 concentration, 458 rpm milling speed, 14 min milling time and 59 mL g−1 reagent–material ratio, the maximum yield of juglone was 15.36 ± 0.16 mg g−1 with a purity of 9.82 ± 0.12% in dry extracts. Compared with other extraction methods, it was found that MAATPE can not only improve the extraction efficiency of juglone, but also achieve higher juglone purity in the products. Finally, the mechanism of action, recyclability and industrial scalability of MAATPE are discussed. In conclusion, MAATPE is an appropriate alternative for the efficient preparation of high-purity products from natural resources.","PeriodicalId":101140,"journal":{"name":"RSC Mechanochemistry","volume":" 5","pages":" 680-691"},"PeriodicalIF":0.0,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/mr/d4mr00132j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144929141","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

Fluorination of mechanochemically synthesized metal–organic frameworks for PFAS adsorption in water† 机械化学合成金属-有机骨架在水中吸附PFAS的氟化研究

RSC Mechanochemistry Pub Date : 2025-05-27 DOI: 10.1039/D5MR00043B

Danilo Marchetti, Enrico Dalcanale, Roberta Pinalli, Mauro Gemmi, Alessandro Pedrini and Chiara Massera

引用次数: 0