New Journal of Chemistry最新文献_第5页

Synthesis of functionalized thiazoloindole-3-thiones and their spirocongeners from 2-acylethynyl-4,5,6,7-tetrahydroindoles and carbon disulfide 以2-酰基乙基-4,5,6,7-四氢吲哚和二硫化碳为原料合成功能化噻唑吲哚-3-硫酮及其螺同源物

IF 2.5 3区化学

New Journal of Chemistry Pub Date : 2025-08-26 DOI: 10.1039/D5NJ02380G

Denis N. Tomilin, Sophia A. Stepanova, Tatyana N. Borodina, Igor A. Ushakov and Boris A. Trofimov

引用次数: 0

A cholesteric liquid crystal elastomer film with dual helical pitches formed by molecular diffusion 由分子扩散形成的具有双螺旋节距的胆甾液晶弹性体薄膜

IF 2.5 3区化学

New Journal of Chemistry Pub Date : 2025-08-26 DOI: 10.1039/D5NJ02210J

Ruizhuo Gui, Limin Wu, Yi Li, Wei Liu and Yonggang Yang

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Synthesis of nanoporous silica nanoparticles encapsulating porphyrin derivatives by non-surface-protected hot water etching for their fluorescent sensing of metal ions in water 非表面保护热水蚀刻法制备包封卟啉衍生物的纳米多孔二氧化硅纳米颗粒对水中金属离子的荧光传感

IF 2.5 3区化学

New Journal of Chemistry Pub Date : 2025-08-26 DOI: 10.1039/D5NJ01488C

Yoshio Nakahara, Ami Kawashima, Natsuki Terashima, Mitsuru Watanabe, Toshiyuki Tamai and Setsuko Yajima

{"title":"Synthesis of nanoporous silica nanoparticles encapsulating porphyrin derivatives by non-surface-protected hot water etching for their fluorescent sensing of metal ions in water","authors":"Yoshio Nakahara, Ami Kawashima, Natsuki Terashima, Mitsuru Watanabe, Toshiyuki Tamai and Setsuko Yajima","doi":"10.1039/D5NJ01488C","DOIUrl":"https://doi.org/10.1039/D5NJ01488C","url":null,"abstract":"Nanoporous silica nanoparticles (SiO2 NPs) encapsulating porphyrin derivatives were synthesized by non-surface-protected hot water etching and their metal ion detection by fluorescence quenching was examined in water. First, an alkoxysilyl group was introduced to 5,10,15,20-tetrakis(4-aminophenyl)porphyrin (TAPP) by its reaction with 3-(triethoxysilyl)propyl isocyanate, then the porphyrin was used in a modified Stöber method to yield SiO2 NPs incorporating TAPP chemically bound within the particles. The porphyrin-modified SiO2 NPs (TAPP@SiO2 NPs) dispersed well in water despite the high hydrophobicity of TAPP. The amount of TAPP incorporated in the SiO2 NPs was influenced by the reaction temperature of the modified Stöber method. Finally, TAPP@SiO2 NPs were converted to nanoporous porphyrin-modified SiO2 NPs (TAPP@E-SiO2 NPs) by non-surface-protected hot water etching. The TAPP fluorescence was enhanced by the silica layer porosification, suggesting greater penetration of excitation light into the TAPP@E-SiO2 NPs. Evaluation of TAPP@E-SiO2 NPs fluorescence sensitivity towards metal ions in water demonstrated high Cu2+ selectivity with a limit of detection of 27 μM.","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 37","pages":" 16172-16179"},"PeriodicalIF":2.5,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

A Ru cluster-decorated NiMoO4/NF catalyst with exceptional HER activity and stability in alkaline media Ru簇修饰的NiMoO4/NF催化剂在碱性介质中具有优异的HER活性和稳定性

IF 2.5 3区化学

New Journal of Chemistry Pub Date : 2025-08-26 DOI: 10.1039/D5NJ02628H

He Jiang, Qi Zhang, Xiaobo Zhu, Hui Zhang, Xueqin Zuo, Qun Yang, Huaibao Tang and Guang Li

{"title":"A Ru cluster-decorated NiMoO4/NF catalyst with exceptional HER activity and stability in alkaline media","authors":"He Jiang, Qi Zhang, Xiaobo Zhu, Hui Zhang, Xueqin Zuo, Qun Yang, Huaibao Tang and Guang Li","doi":"10.1039/D5NJ02628H","DOIUrl":"https://doi.org/10.1039/D5NJ02628H","url":null,"abstract":"The energy crisis and environmental pollution have forced scientists to look for clean and sustainable green and pollution-free energy. Hydrogen energy is considered to be the best alternative to fossil fuels. Therefore, it is necessary to develop sustainable and efficient hydrogen evolution reaction (HER) electrocatalysts to promote water splitting to produce hydrogen. In the field of catalysis, electronic metal–support interaction (EMSI) is an important phenomenon to describe the electron transfer or charge redistribution between metal nanoparticles and their supporting materials. At the same time, EMSI has been proven to improve the catalytic performance of the catalyst. Here, we prepared a Ru/NiMoO4/NF (NF for nickel foam) catalyst by a combination of hydrothermal and impregnation methods, which exhibits an electron-metal carrier interaction. The introduction of Ru can adjust the internal resistance of NiMoO4. Ru/NiMoO4 has the smallest charge transfer resistance, which promotes the combination of H+ and electrons to produce H*, and H* enrichment produces H2, and stabilizes the heterojunction interface, thus realizing the stable operation of the material at high current density.","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 38","pages":" 16863-16869"},"PeriodicalIF":2.5,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145189964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Enhanced white tea extraction and multifunctional dermatoprotection via an l-proline/xylitol NaDES: antioxidant, anti-photoaging, and anti-glycation effects 通过l-脯氨酸/木糖醇NaDES增强白茶提取和多功能皮肤保护：抗氧化，抗光老化，抗糖化作用

IF 2.5 3区化学

New Journal of Chemistry Pub Date : 2025-08-26 DOI: 10.1039/D5NJ02454D

Yuanbin Li, Siyuan Chen, Shanshan Li, Zhenyuan Wang, Chengyu Wu, Jichuan Zhang, Junzi Dong and Jiaheng Zhang

{"title":"Enhanced white tea extraction and multifunctional dermatoprotection via an l-proline/xylitol NaDES: antioxidant, anti-photoaging, and anti-glycation effects","authors":"Yuanbin Li, Siyuan Chen, Shanshan Li, Zhenyuan Wang, Chengyu Wu, Jichuan Zhang, Junzi Dong and Jiaheng Zhang","doi":"10.1039/D5NJ02454D","DOIUrl":"https://doi.org/10.1039/D5NJ02454D","url":null,"abstract":"Bioactive constituents in Camellia sinensis (white tea) provide dermatoprotective benefits, but conventional extraction methods are often inefficient and cumbersome. Research on green extraction techniques for white tea and their effects on skin-related bioactivities remains limited. This study, therefore, established natural deep eutectic solvents (NaDESs) as a sustainable extraction platform for white tea bioactives and evaluated the multifunctional skincare properties of the resulting extracts. An optimized L-proline/xylitol NaDES significantly enhanced polyphenol extraction efficiency over traditional solvents. The NaDES-derived extract exhibited superior antioxidant and anti-photoaging effects due to its higher polyphenol content, while also inhibiting advanced glycation end-product (AGE) formation, demonstrating anti-glycation potential. In conclusion, the NaDES represents an advanced plant extraction solvent, and the derived white tea extract shows promise as a multifunctional skincare ingredient (with antioxidant, anti-photoaging, and anti-glycation properties) for cosmetic and food applications.","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 38","pages":" 16548-16558"},"PeriodicalIF":2.5,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145190294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Cascade reaction of 2-bromo-2H-azirine-2-carboxylate with malonic esters: facile access to highly substituted pyrrolinones 2-溴-2- h -嗪-2-羧酸酯与丙二酸酯的级联反应：易于获得高取代吡咯啉酮

IF 2.5 3区化学

New Journal of Chemistry Pub Date : 2025-08-26 DOI: 10.1039/D5NJ02356D

Priyankar Pradhan, A. Shaikh Sumaiya, N. Jagadeesh Babu and Gangarajula Sudhakar

引用次数: 0

A novel dual-responsive fluorescent probe for moisture detection and hypochlorite sensing 一种新型的双响应荧光探针，用于水分检测和次氯酸盐传感

IF 2.5 3区化学

New Journal of Chemistry Pub Date : 2025-08-25 DOI: 10.1039/D5NJ02744F

Yuehua Yuan, Siyi Shen, Chaoyi Yue, Mengqing Du, Yongjun Zhu, Yuzhen Wang, Feng Feng and Maozhong Tian

{"title":"A novel dual-responsive fluorescent probe for moisture detection and hypochlorite sensing","authors":"Yuehua Yuan, Siyi Shen, Chaoyi Yue, Mengqing Du, Yongjun Zhu, Yuzhen Wang, Feng Feng and Maozhong Tian","doi":"10.1039/D5NJ02744F","DOIUrl":"https://doi.org/10.1039/D5NJ02744F","url":null,"abstract":"In this work, a novel phenothiazine-based organic small molecule fluorescence probe (PEIF) was designed and synthesized through a Knoevenagel condensation reaction for moisture detection and hypochlorite (ClO−) sensing. The essential photophysical properties of PEIF were evaluated. Interestingly, the probe emitted intense red fluorescence in 1,4-dioxane compared to that in water. A good linear relationship was achieved between the fluorescent intensity of PEIF at 640 nm and water content (0.0–0.8 vol%) in 1,4-dioxane. The PEIF probe demonstrated outstanding sensitivity towards moisture in 1,4-dioxane with a low detection limit of 0.009% (v/v). Furthermore, the fluorescence detection of ClO− by PEIF featured high sensitivity (LOD = 19.7 nM), good selectivity, a large Stokes shift, and rapid response. The detection mechanism for hypochlorite was proposed and verified by DFT calculations, HRMS, and 1H NMR methods. To our knowledge, this is the first phenothiazine-based dual-responsive fluorescent probe for the detection of trace water in 1,4-dioxane and ClO−. We have proved the potential of the PEIF probe for the effective determination of ClO− in practical water samples. Additionally, this probe was also successfully used for the bioimaging of ClO− in vegetable cells and live zebrafish.","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 37","pages":" 16423-16432"},"PeriodicalIF":2.5,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

An organoiridium(iii) complex-based probe for rapid and highly selective dual channel detection of cyanide ions 一种基于有机铱（iii）配合物的探针，用于快速和高选择性双通道检测氰化物离子

IF 2.5 3区化学

New Journal of Chemistry Pub Date : 2025-08-25 DOI: 10.1039/D5NJ02209F

Jogat Gogoi, Monosh Rabha and Snehadrinarayan Khatua

{"title":"An organoiridium(iii) complex-based probe for rapid and highly selective dual channel detection of cyanide ions","authors":"Jogat Gogoi, Monosh Rabha and Snehadrinarayan Khatua","doi":"10.1039/D5NJ02209F","DOIUrl":"https://doi.org/10.1039/D5NJ02209F","url":null,"abstract":"A new d6-metal complex-based probe, [Ir(ppy)2(L)]+ (L = 1,10-phenanthroline-4,7-dicarboxaldehyde) (Ir-1), was synthesized and fully characterized using various spectroscopic techniques. Ir-1 was employed for cyanide (CN−) detection via cyanohydrin formation. Its CN− binding properties were systematically investigated in pure acetonitrile using UV-vis absorption and photoluminescence (PL) spectroscopy. The addition of 2.0 equivalents of CN− to 25 μM Ir-1 in acetonitrile resulted in a drastic 103-fold enhancement in photoluminescence intensity, with the appearance of bright green luminescence. The detection limit was determined to be 10.56 × 10−6 M. Cyanohydrin formation was further confirmed through 1H NMR spectroscopy with 2 equivalents of CN−. Additionally, CN− detection was demonstrated using probe-loaded paper strips with a 100 μM analyte solution. Finally, density functional theory (DFT) calculations were performed to explore the electronic structure and transitions in Ir-1 and its cyanide adduct.","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 38","pages":" 16778-16786"},"PeriodicalIF":2.5,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145190182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Efficient Cu–0.03Fe/SiO2 catalysts for one-pot deep hydrogenation of maleic anhydride to 1,4-butanediol 马来酸酐一锅深度加氢制1,4-丁二醇的Cu-0.03Fe /SiO2高效催化剂

IF 2.5 3区化学

New Journal of Chemistry Pub Date : 2025-08-25 DOI: 10.1039/D5NJ02747K

Yuli Jing, Yufei Li, Junwen Chen, Kai Cui, Peng Wu and Xiaohong Li

{"title":"Efficient Cu–0.03Fe/SiO2 catalysts for one-pot deep hydrogenation of maleic anhydride to 1,4-butanediol","authors":"Yuli Jing, Yufei Li, Junwen Chen, Kai Cui, Peng Wu and Xiaohong Li","doi":"10.1039/D5NJ02747K","DOIUrl":"https://doi.org/10.1039/D5NJ02747K","url":null,"abstract":"The demand for biodegradable plastics is increasing in line with the growth in environmental protection measures. Consequently, the demand for 1,4-butanediol (BDO), the upstream key raw material for biodegradable plastics, has increased significantly. BDO can be obtained through the deep hydrogenation of maleic anhydride (MA). However, due to the complicated network involved in the MA hydrogenation reaction, it is rather difficult to obtain BDO with satisfactory yield via the one-pot deep hydrogenation of MA. In this work, Cu–0.03Fe/SiO2 catalysts were prepared by hydrothermal and co-precipitation methods and applied to the one-pot deep hydrogenation of MA to BDO, affording 92.7–94.4% BDO yield at 190 °C under 5 MPa of H2 pressure. This value surpasses those reported in the literature up to now. Moreover, the Cu–0.03Fe/SiO2 catalyst prepared by a modified hydrothermal method can be reused at least four times without any distinct loss in activity or selectivity to BDO. A series of techniques were adopted to characterize the Cu–Fe/SiO2 catalysts to gain some insights into the structure–performance relationship in the hydrogenation of MA to BDO.","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 38","pages":" 16723-16733"},"PeriodicalIF":2.5,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145190176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Copper-induced tert-butoxy-substituted terpyridine hydrogel for enhanced peroxidase-like activity and colourimetric glutathione sensing 铜诱导的叔丁基取代三联吡啶水凝胶增强过氧化物酶样活性和比色法谷胱甘肽传感

IF 2.5 3区化学

New Journal of Chemistry Pub Date : 2025-08-25 DOI: 10.1039/D5NJ02354H

Sourav Sutradhar, Suryakamal Sarma, Sonali Palo, Parnashabari Sarkar, Tridib Kumar Sarma and Biswa Nath Ghosh

{"title":"Copper-induced tert-butoxy-substituted terpyridine hydrogel for enhanced peroxidase-like activity and colourimetric glutathione sensing","authors":"Sourav Sutradhar, Suryakamal Sarma, Sonali Palo, Parnashabari Sarkar, Tridib Kumar Sarma and Biswa Nath Ghosh","doi":"10.1039/D5NJ02354H","DOIUrl":"https://doi.org/10.1039/D5NJ02354H","url":null,"abstract":"Metal–organic hydrogels (MOHs) have gained prominence as artificial enzymes due to their tunable coordination environments and porous architectures. In particular, copper-based MOHs have exhibited exceptional peroxidase-like activity by mimicking the substrate-binding pockets and redox-active centres of natural enzymes. However, achieving high catalytic efficiency under mild conditions remains a key challenge. Herein, we synthesised a novel tert-butoxy-functionalized terpyridine ligand, 4′-(4-(tert-butoxy)phenyl)-2,2′:6′,2′′-terpyridine (L), and engineered a copper-coordinated hydrogel (CuHG) with hierarchical nanofibrous morphology and robust viscoelasticity. CuHG demonstrated superior peroxidase-like activity at pH 4.0, catalysing the H2O2-mediated oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB). Steady-state kinetic studies revealed its high catalytic efficiency and substrate affinity, with the oxidation mechanism proceeding via Cu2+/Cu+ redox cycling. By capitalising on the selective inhibition of TMB oxidation by glutathione, we developed a rapid colourimetric biosensor with a detection limit of 1.97 μM and high selectivity over interfering biomolecules. This work provides a blueprint for designing enzyme-mimicking MOHs and expands their utility in environmental remediation and point-of-care diagnostics.","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 38","pages":" 16713-16722"},"PeriodicalIF":2.5,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145190175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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