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Dual contrasting ability of NaGd0.7Eu0.3F4 nanocrystals tuned by their hydrophilic coating mode 通过亲水涂层模式调整 NaGd0.7Eu0.3F4 纳米晶体的双重对比能力
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.004
Alexey A. Dovzhenko , Anna A. Betina , Tatyana S. Bulatova , Nikita A. Bogachev , Vladimir G. Nikiforov , Alexandra D. Voloshina , Rustem R. Zairov , Asya R. Mustafina , Andrey S. Mereshchenko , Bulat S. Akhmadeev
{"title":"Dual contrasting ability of NaGd0.7Eu0.3F4 nanocrystals tuned by their hydrophilic coating mode","authors":"Alexey A. Dovzhenko ,&nbsp;Anna A. Betina ,&nbsp;Tatyana S. Bulatova ,&nbsp;Nikita A. Bogachev ,&nbsp;Vladimir G. Nikiforov ,&nbsp;Alexandra D. Voloshina ,&nbsp;Rustem R. Zairov ,&nbsp;Asya R. Mustafina ,&nbsp;Andrey S. Mereshchenko ,&nbsp;Bulat S. Akhmadeev","doi":"10.1016/j.mencom.2024.09.004","DOIUrl":"10.1016/j.mencom.2024.09.004","url":null,"abstract":"<div><div>This work introduces non-covalent hydrophilic coating of NaGd<sub>0.7</sub>Eu<sub>0.3</sub>F<sub>4</sub> nanocrystals by polylysine (PL) and polyethyleneimine (PEI) for MRI and fluorescent imaging purposes. PL- and PEI-stabilized nanocrystals exhibit high colloidal stability, cell internalization, fluorescent contrasting of nuclei and cytoplasm, low cytotoxicity, and relaxivity (<em>r</em><sub>1</sub>= 0.17 dm<sup>3</sup> mmol<sup>–1</sup> s<sup>–1</sup> and <em>r</em><sub>1</sub> = 0.23 dm<sup>3</sup> mmol<sup>–1</sup> s<sup>–1</sup>).</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 637-639"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
The ‘click’ synthesis of new cytotoxic conjugate based on meso-arylporphyrin and Erlotinib 基于介芳基卟啉和厄洛替尼的新型细胞毒性共轭物的 "点击 "合成
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.019
Yuliya S. Bortnevskaya , Viktoriya A. Malikova , Natalia Yu. Karpechenko , Natal’ya A. Bragina , Kseniya A. Zhdanova
{"title":"The ‘click’ synthesis of new cytotoxic conjugate based on meso-arylporphyrin and Erlotinib","authors":"Yuliya S. Bortnevskaya ,&nbsp;Viktoriya A. Malikova ,&nbsp;Natalia Yu. Karpechenko ,&nbsp;Natal’ya A. Bragina ,&nbsp;Kseniya A. Zhdanova","doi":"10.1016/j.mencom.2024.09.019","DOIUrl":"10.1016/j.mencom.2024.09.019","url":null,"abstract":"<div><div>New phototherapeutic agents based on synthetic porphyrin- type tetrapyrroles and small-molecule-targeted tyrosine kinase inhibitor Erlotinib have been synthesized based on the scheme involving ‘click’ reaction between bis(4- azidophenyl)-containing zinc porphyrinate derivative and <em>N</em>-(3-ethynylphenylamino)-6,7-bis(2-methoxyethoxy)- quinazoline. The final compound and its precursors were tested as potential photosensitizers for targeted photo- dynamic therapy (PDT), the conjugate having shown photoinduced cytotoxicity IC<sub>50</sub> for NKE cells 0.86 ± 0.017 μm and for A431 cells 0.54 ± 0.011 μm.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 685-687"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Competition between n → π* interactions and H-bonding: a way to stabilize aminoxyl anions and to improve electron transfer kinetics n → π* 相互作用与 H 键之间的竞争：稳定氨基氧阴离子和改善电子转移动力学的一种方法
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.016
Oleg A. Levitskiy, Alexey V. Bogdanov, Tatiana V. Magdesieva
{"title":"Competition between n → π* interactions and H-bonding: a way to stabilize aminoxyl anions and to improve electron transfer kinetics","authors":"Oleg A. Levitskiy,&nbsp;Alexey V. Bogdanov,&nbsp;Tatiana V. Magdesieva","doi":"10.1016/j.mencom.2024.09.016","DOIUrl":"10.1016/j.mencom.2024.09.016","url":null,"abstract":"<div><div>A new approach to stabilization of the reduced state of nitroxides in solution is suggested. Thermodynamic stabilization of the strongly basic aminoxyl anions toward protonation and hydrogen bond formation with the solvent was achieved by intramolecular n → π* interactions. A new stable nitroxide radical bearing <em>ortho</em>-acyl group was synthesized to demonstrate this effect by means of cyclic voltammetry.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 676-679"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142432672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
X-ray structural study of 3:1 solvate of 1-chlorosilatrane with MeCN 1-chlorosilatrane 与 MeCN 的 3:1 溶剂的 X 射线结构研究
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.039
Boris A. Gostevsky, Alexander V. Vashchenko, Nataliya F. Lazareva
{"title":"X-ray structural study of 3:1 solvate of 1-chlorosilatrane with MeCN","authors":"Boris A. Gostevsky,&nbsp;Alexander V. Vashchenko,&nbsp;Nataliya F. Lazareva","doi":"10.1016/j.mencom.2024.09.039","DOIUrl":"10.1016/j.mencom.2024.09.039","url":null,"abstract":"<div><div>The single-crystal X-ray study of ClSi(OCH<sub>2</sub>CH<sub>2</sub>)<sub>3</sub>N showed the formation of a cluster of three silatrane molecules with one acetonitrile molecule featuring hypercoordinated Si atoms in a trigonal-bipyramidal coordination environment with O atom in the equatorial plane. A number of solid-phase structural parameters and the conformation of the fivemembered rings of 1-chlorosilatrane were thus clarified.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 745-747"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Fluorene-based π-conjugated polymers for OLEDs: advances, opportunities, and challenges 用于有机发光二极管的芴基π共轭聚合物：进展、机遇与挑战
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.001
Anton A. Yakimanskiy, Alexander M. Mitroshin, Tatiana G. Chulkova, Sergey A. Miltsov, Alexander V. Yakimansky
{"title":"Fluorene-based π-conjugated polymers for OLEDs: advances, opportunities, and challenges","authors":"Anton A. Yakimanskiy,&nbsp;Alexander M. Mitroshin,&nbsp;Tatiana G. Chulkova,&nbsp;Sergey A. Miltsov,&nbsp;Alexander V. Yakimansky","doi":"10.1016/j.mencom.2024.09.001","DOIUrl":"10.1016/j.mencom.2024.09.001","url":null,"abstract":"<div><div>Copolyfluorenes have drawn considerable attention owing to their remarkable optoelectronic characteristics, chemical and thermal stability, good film-forming properties, and thus present an active subject of cutting-edge research in the organic electroluminescence. This current systematic review examines and summarizes the latest research on copolyfluorene-based materials for light emitting layers of OLEDs over the past decades.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 609-629"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142432017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
New triazole-containing 7-azacoumarin-3-carboxamides: synthesis and biological properties 新的含三唑的 7-氮杂香豆素-3-羧酰胺：合成与生物特性
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.020
Alexey V. Trifonov, Roza K. Bagautdinova, Lyudmila K. Kibardina, Michail A. Pudovik, Anna P. Lyubina, Alexandra D. Voloshina, Almir S. Gazizov, Alexander R. Burilov
{"title":"New triazole-containing 7-azacoumarin-3-carboxamides: synthesis and biological properties","authors":"Alexey V. Trifonov,&nbsp;Roza K. Bagautdinova,&nbsp;Lyudmila K. Kibardina,&nbsp;Michail A. Pudovik,&nbsp;Anna P. Lyubina,&nbsp;Alexandra D. Voloshina,&nbsp;Almir S. Gazizov,&nbsp;Alexander R. Burilov","doi":"10.1016/j.mencom.2024.09.020","DOIUrl":"10.1016/j.mencom.2024.09.020","url":null,"abstract":"<div><div>New azidomethyl-substituted 7-azacoumarin-3-carbox- amides were converted into the corresponding 1,2,3-triazole hybrids by the copper-catalyzed click reaction with phenyl- acetylene. Cytotoxicity and antimicrobial activity were evaluated, and leading compounds were identified.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 688-690"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Control for selective sorption of heavy metals cations with anion exchanger AB-17-8 by modifying the surface with citrate groups 通过改变阴离子交换剂 AB-17-8 的表面柠檬酸基团，控制其对重金属阳离子的选择性吸附
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.042
Nazgul S. Murzakasymova , Nesipkhan A. Bektenov , Kiril V. Serebriakov , Egor S. Yelkin , Mikhail A. Gavrilenko
{"title":"Control for selective sorption of heavy metals cations with anion exchanger AB-17-8 by modifying the surface with citrate groups","authors":"Nazgul S. Murzakasymova ,&nbsp;Nesipkhan A. Bektenov ,&nbsp;Kiril V. Serebriakov ,&nbsp;Egor S. Yelkin ,&nbsp;Mikhail A. Gavrilenko","doi":"10.1016/j.mencom.2024.09.042","DOIUrl":"10.1016/j.mencom.2024.09.042","url":null,"abstract":"<div><div>The citric acid modification produces an intermediate layer on the AB-17-8:C<sub>6</sub>H<sub>8</sub>O<sub>7</sub> surface; the layer, on one hand, is firmly secured to the surface owing to the electrostatic coupling between the citrate anion and the positively charged trimethylammonium centers of the anion exchanger surface; on the other hand, it has carbonyl groups with a local negative electron density. The sorption of heavy metals cations occurs through coordination interactions <em>via</em> electrostatic mechanism with local centers of negative electron density, in particular, with the carbonylic oxygen atom.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 755-757"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Performance of PdAu/Al2O3 egg-shell catalyst with isolated Pd1 sites for selective hydrogenation of acetylene 具有分离 Pd1 位点的 PdAu/Al2O3 蛋壳催化剂在乙炔选择性加氢中的性能
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.030
Igor S. Mashkovsky , Nadezhda S. Smirnova , Pavel V. Markov , Galina N. Baeva , Anastasia E. Vaulina , Dmitry P. Melnikova , Alexander Yu. Stakheev
{"title":"Performance of PdAu/Al2O3 egg-shell catalyst with isolated Pd1 sites for selective hydrogenation of acetylene","authors":"Igor S. Mashkovsky ,&nbsp;Nadezhda S. Smirnova ,&nbsp;Pavel V. Markov ,&nbsp;Galina N. Baeva ,&nbsp;Anastasia E. Vaulina ,&nbsp;Dmitry P. Melnikova ,&nbsp;Alexander Yu. Stakheev","doi":"10.1016/j.mencom.2024.09.030","DOIUrl":"10.1016/j.mencom.2024.09.030","url":null,"abstract":"<div><div>A herein proposed PdAu/Al<sub>2</sub>O<sub>3</sub> egg-shell catalyst for selective acetylene hydrogenation combines two factors to provide perfect performance: isolation of Pd<sub>1</sub> active sites by Au and an egg-shell distribution of the active phase across the catalyst pellets. The PdAu/Al<sub>2</sub>O<sub>3</sub> catalyst exhibits high acetylene hydrogenation activity at the level of Pd-catalysts and high intrinsic ethylene selectivity of Au-catalysts.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 718-720"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Electrochemical oxidation of furans into 2,5-dimethoxy-2,5-dihydrofurans 将呋喃电化学氧化成 2,5-二甲氧基-2,5-二氢呋喃
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.033
Konstantin O. Titov , Artem N. Sinelnikov , Evgeniia P. Antoshkina , Ulyana I. Zaretskaya , Andrey K. Ratnikov , Ekaterina A. Khakina , Teimur M. Aliev
{"title":"Electrochemical oxidation of furans into 2,5-dimethoxy-2,5-dihydrofurans","authors":"Konstantin O. Titov ,&nbsp;Artem N. Sinelnikov ,&nbsp;Evgeniia P. Antoshkina ,&nbsp;Ulyana I. Zaretskaya ,&nbsp;Andrey K. Ratnikov ,&nbsp;Ekaterina A. Khakina ,&nbsp;Teimur M. Aliev","doi":"10.1016/j.mencom.2024.09.033","DOIUrl":"10.1016/j.mencom.2024.09.033","url":null,"abstract":"<div><div>Substituted 2,5-dimethoxy-2,5-dihydrofurans (<em>cis</em>/<em>trans</em> isomer mixtures) were obtained <em>via</em> the electrochemical oxidation of the corresponding furans in an undivided cell in methanol in the presence of bromides as mediators. The method is suitable for furans containing electron-donating groups.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 729-731"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142432105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
N-Vinylation of lactams with calcium carbide water system 内酰胺与碳化钙水体系的 N-乙烯基化反应
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.034
Yulia V. Gyrdymova, Sofya M. Zarubina, Konstantin S. Rodygin
{"title":"N-Vinylation of lactams with calcium carbide water system","authors":"Yulia V. Gyrdymova,&nbsp;Sofya M. Zarubina,&nbsp;Konstantin S. Rodygin","doi":"10.1016/j.mencom.2024.09.034","DOIUrl":"10.1016/j.mencom.2024.09.034","url":null,"abstract":"<div><div>Direct <em>N</em>-vinylation of lactams with calcium carbide water system was performed under super-basic conditions. The vinylation occurred exclusively at NH group leaving C<img>O function intact to afford cyclic <em>N</em>-vinyl amides in yields up to 97%. The obtained products are prospective monomers for the preparation of synthetic peptides.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 732-733"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142432106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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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