New Journal of Chemistry最新文献_第2页

A pyrazole ligand improves the efficiency of Mn-catalysts for transfer hydrogenation†

IF 2.7 3区化学

New Journal of Chemistry Pub Date : 2025-02-06 DOI: 10.1039/D4NJ05028B

Yan Cai, Xiulin Li, Zhengguo Zhang, Ali Ramezani, Ali Morsali and Guoying Zhang

{"title":"A pyrazole ligand improves the efficiency of Mn-catalysts for transfer hydrogenation†","authors":"Yan Cai, Xiulin Li, Zhengguo Zhang, Ali Ramezani, Ali Morsali and Guoying Zhang","doi":"10.1039/D4NJ05028B","DOIUrl":"https://doi.org/10.1039/D4NJ05028B","url":null,"abstract":"The high cost associated with noble metal catalysts has led to a surge in interest towards harnessing the abundant 3D metals as catalysts for catalytic hydrogenation. Many 3D metal catalysts have been disclosed in recent years for transfer hydrogenation reactions, but the reported catalyst metal loads are too high compared to precious metal catalysts, sometimes up to three orders of magnitude higher. Therefore, it is necessary to solve the actual coordination of ligands and metals in non-precious metal catalysts and avoid excessive consumption of transition metals and ligands, in order to realize the effective practical application of 3D metal catalytic systems in various industries. A practical and scalable catalytic system employing pyrazole ligands coordinated to Mn is introduced for transfer hydrogenations. By means of pre-activation via dehydrohalogenation, an efficient and unprecedented Mn–N2 catalytic system has been established, showcasing exceptional tolerance towards a diverse array of functional groups and enabling broad application across a wide range of alcohols. Significantly, this protocol facilitates the facile synthesis of multiple pharmaceuticals within a single reaction vessel.","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 8","pages":" 3020-3024"},"PeriodicalIF":2.7,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143430640","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

Synthesis and properties of a novel fluorescent organogel: AIE, GO hybrid functional gel, and multi-stimuli responsiveness†

IF 2.7 3区化学

New Journal of Chemistry Pub Date : 2025-02-05 DOI: 10.1039/D4NJ04671D

Miao Luo, Chengpeng Li, Qing Yan and Sheng Wang

引用次数: 0

Modular synthesis of glycosyl sulfonamide via reductive coupling of glycosyl sulfinate and nitroarene†

IF 2.7 3区化学

New Journal of Chemistry Pub Date : 2025-02-05 DOI: 10.1039/D4NJ04911J

Wenxu Zhen, Jialu Ma, Zhaohui Ni, Jiaxin Luo, Xiaomin Shen, Yusheng Xie, Hao Qiu and Chunfa Xu

引用次数: 0

Construction of a 2D@0D InVO4@MnWO4 S-scheme for efficient photocatalytic reduction of CO2 to CO†

IF 2.7 3区化学

New Journal of Chemistry Pub Date : 2025-02-05 DOI: 10.1039/D4NJ05419A

Wenzhuo Xiang, Guoyu Xu, Lujiang Xiao, Zizhong Zhang, Tao Ji and Wenyue Su

{"title":"Construction of a 2D@0D InVO4@MnWO4 S-scheme for efficient photocatalytic reduction of CO2 to CO†","authors":"Wenzhuo Xiang, Guoyu Xu, Lujiang Xiao, Zizhong Zhang, Tao Ji and Wenyue Su","doi":"10.1039/D4NJ05419A","DOIUrl":"https://doi.org/10.1039/D4NJ05419A","url":null,"abstract":"Mimicking photosynthesis to convert CO2 and H2O into value-added chemicals represents an optimal approach to mitigate energy shortages and environmental pollution, and the development of highly efficient and selective photocatalysts for CO2 to CO conversion is essential for the effective utilization of CO2 resources. Herein, a novel 2D@0D InVO4@MnWO4 S-scheme heterojunction composite is successfully developed via an in situ hydrothermal method, achieving the conversion of CO2 into CO under visible light irradiation using H2O as a reducing agent, without any noble metal cocatalysts or sacrificial reagents. The CO generation rate over the optimal InVO4@MnWO4 composite reaches 6.20 μmol g−1 h−1, which is approximately 4.50 times than that of InVO4. The enhanced photocatalytic performance is ascribed to the charge separation facilitated by the formation of an S-scheme heterojunction between InVO4 and MnWO4. This work is expected to provide a new insight for the design of highly selective photocatalysts for the conversion of CO2 to CO.","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 9","pages":" 3751-3758"},"PeriodicalIF":2.7,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143475095","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 tragacanth gum-infused graphitic carbon nitride/cellulose nanohydrogel for controlled lornoxicam release kinetics†

IF 2.7 3区化学

New Journal of Chemistry Pub Date : 2025-02-05 DOI: 10.1039/D4NJ05442C

Aamir Nawaz, Muhammad Babar Taj, Muhammad Imran Khan, Abeer M. Beagan, Antoniadou Maria and Abdallah Shanableh

{"title":"A tragacanth gum-infused graphitic carbon nitride/cellulose nanohydrogel for controlled lornoxicam release kinetics†","authors":"Aamir Nawaz, Muhammad Babar Taj, Muhammad Imran Khan, Abeer M. Beagan, Antoniadou Maria and Abdallah Shanableh","doi":"10.1039/D4NJ05442C","DOIUrl":"https://doi.org/10.1039/D4NJ05442C","url":null,"abstract":"Hydrogel biomaterials are increasingly utilized as drug delivery systems due to their unique properties. In this study, graphitic carbon nitride (g-CN) was synthesized from urea and combined with cellulose (Cel) and tragacanth gum (TG) to form a composite hydrogel (Cel/g-CN/TG) using solvent casting and sonication. Structural characterization was done using various methods, including Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), zeta potential (ZP) analysis, Brunauer–Emmett–Teller (BET) analysis, dynamic light scattering (DLS), and scanning electron microscopy (SEM). The hydrogels exhibited a ZP of 2.43 mV, a non-crystalline structure, and an average particle size of 200.33 nm. The drug lornoxicam (LXM) was incorporated into the hydrogel to examine loading (% LE) and release efficiencies (% RE), with findings indicating significant effects of time, drug concentration, pH, and temperature on loading, and pH and temperature on release. The highest % RE values were 63.025% at pH 7.4 and 64.24% at 50 °C. The hydrogels demonstrated high cell viability (95–100%) and biocompatibility, along with good swelling ability under various conditions. LXM release followed the Peppas–Sahlin model, showing Fickian diffusion behaviour. Overall, the Cel/g-CN/TG hydrogel showed pH and temperature-responsive characteristics for effective LXM delivery.","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 8","pages":" 3370-3386"},"PeriodicalIF":2.7,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143430729","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 chitosan/hydroxypropylmethyl cellulose composite sponge with shape memory for rapid hemostasis†

IF 2.7 3区化学

New Journal of Chemistry Pub Date : 2025-02-05 DOI: 10.1039/D4NJ04436C

Chunyan Yu, Kai Wang, Shuang Wang, Huihui Zhang, Kehui Qi and Lu Li

{"title":"A chitosan/hydroxypropylmethyl cellulose composite sponge with shape memory for rapid hemostasis†","authors":"Chunyan Yu, Kai Wang, Shuang Wang, Huihui Zhang, Kehui Qi and Lu Li","doi":"10.1039/D4NJ04436C","DOIUrl":"https://doi.org/10.1039/D4NJ04436C","url":null,"abstract":"Deaths from uncontrollable hemorrhage continue to be a worldwide concern. However, traditional hemostatic methods are not powerful enough for the rapid control of wound bleeding. Developing shape-memory hemostatic sponges with high liquid absorption rates and good mechanical properties for the rapid control of bleeding wounds remains challenging. In this study, shape memory hemostatic composite sponges were prepared from chitosan, hydroxypropylmethyl cellulose and glutaraldehyde. The chitosan/hydroxypropylmethyl cellulose/glutaraldehyde (CHG) hemostatic composite sponges possessed a highly interconnected macroporous structure. The CHG composite sponges could rapidly absorb blood and revert to its original shape. In addition, the CHG composite sponges had good compressive properties and compressive stability, which could maintain their original shape even after undergoing 10 cycles compression test. The good biocompatibility of the obtained CHG composite sponges was confirmed via hemocompatibility tests, cytotoxicity and skin irritation tests. The excellent hemostasis properties of CHG composite sponges were demonstrated in vitro via whole blood coagulation assay, while the SD rat liver injury model showed a ∼65% reduction in blood loss compared with the blank group. Therefore, CHG composite sponges hold great potential as new hemostatic materials and offer a novel approach for designing efficient hemostatic materials.","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 8","pages":" 3334-3343"},"PeriodicalIF":2.7,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143430692","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

Evaluation of biomolecular interactions and in vitro cytotoxic activity of mononuclear and polymeric copper(ii)-based complexes against triple-negative breast cancer cells†

IF 2.7 3区化学

New Journal of Chemistry Pub Date : 2025-02-05 DOI: 10.1039/D4NJ04052J

Imtiyaz Ahmad Mantoo, Chandra Prakash Prasad and Imtiyaz Yousuf

{"title":"Evaluation of biomolecular interactions and in vitro cytotoxic activity of mononuclear and polymeric copper(ii)-based complexes against triple-negative breast cancer cells†","authors":"Imtiyaz Ahmad Mantoo, Chandra Prakash Prasad and Imtiyaz Yousuf","doi":"10.1039/D4NJ04052J","DOIUrl":"https://doi.org/10.1039/D4NJ04052J","url":null,"abstract":"Herein, we report the syntheses, characterizations and anticancer activities of two Cu(II) complexes (C1 and CP1) as chemotherapeutic agents. The compounds were synthesized under different conditions, and interestingly, complex C1 was mononuclear and CP1 was polymeric. The molecular structures of C1 and CP1 were validated by various spectral techniques, viz., electronic spectroscopy, FT-IR, EPR, sc-XRD and other analytical techniques. Single crystal X-ray crystallographic studies of C1 revealed a triclinic system with the P<img> space group, while CP1 revealed an orthorhombic crystal system with the space group pbca. In vitro DNA binding studies were carried out to investigate their chemotherapeutic potential, and the combined results revealed an electrostatic mode of interaction. The cytotoxicity of the synthesized compounds was examined against two triple-negative breast cancer (TNBC) cells of different morphologies, viz., MDA-MB-468 and MDA-MB-231. Results showed that CP1 exhibited better anticancer efficacy and induced apoptosis in TNBC cells. In order to validate the apoptosis-mediated cell death, western blot assays were also carried out, which revealed a significant reduction in the levels of apoptosis-related proteins, especially Bcl-2 and Pro-caspase, in the presence of CP1 treatment. Furthermore, the results of immunoblotting assays corroborated well with flow cytometry analysis, which indicated early or late apoptosis.","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 8","pages":" 3351-3364"},"PeriodicalIF":2.7,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143430694","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

Salt-flower-shaped FeP–CoP catalyst for highly efficient bifunctional hydrogen and oxygen evolution†

IF 2.7 3区化学

New Journal of Chemistry Pub Date : 2025-02-05 DOI: 10.1039/D4NJ05125D

Ze-Feng Xu, Jia Xue, Lei-Lei Li, Xing-Liang Yin, Chuan-Wu Chen, Ya-Nan Jing and Da-Qiang Liu

{"title":"Salt-flower-shaped FeP–CoP catalyst for highly efficient bifunctional hydrogen and oxygen evolution†","authors":"Ze-Feng Xu, Jia Xue, Lei-Lei Li, Xing-Liang Yin, Chuan-Wu Chen, Ya-Nan Jing and Da-Qiang Liu","doi":"10.1039/D4NJ05125D","DOIUrl":"https://doi.org/10.1039/D4NJ05125D","url":null,"abstract":"Developing efficient, stable, and cost-effective electrocatalysts is essential for advancing sustainable water splitting and renewable energy technologies. Here, we report the design of a novel salt-flower-shaped FeP–CoP catalyst, leveraging its unique morphology and synergistic composition for enhanced bifunctional electrocatalysis. The catalyst showed outstanding performance in both hydrogen evolution (HER) and oxygen evolution reactions (OER), achieving low overpotentials of 105 mV and 320 mV at a current density of 10 mA cm−2 for HER and OER, respectively, with Tafel slopes of 106.73 and 93.27 mV dec−1. The exceptional catalytic performance is attributed to the optimized phosphorization process, which enhances active site density, and the synergistic interaction between FeP and CoP, facilitating efficient charge transfer. This study highlights the potential of low-cost, earth-abundant metal-based catalysts for sustainable hydrogen and oxygen production, paving the way for scalable water-splitting technologies.","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 8","pages":" 3387-3396"},"PeriodicalIF":2.7,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143430730","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

Silver–NHC complex as a fluorophore for the selective detection of sulphide (S2−) anions†

IF 2.7 3区化学

New Journal of Chemistry Pub Date : 2025-02-05 DOI: 10.1039/D4NJ05132G

Bony Pariyadan Joy, Sneha Kannilakkandi, Keerthana Vallithoduvil Kodakkadan, Siva Kumar Srinivasan and Vittal Babu Gudimetla

引用次数: 0

Microstructure and thermoelectric properties of Mg3(Bi,Sb)2 films containing a Mg metal phase

IF 2.7 3区化学

New Journal of Chemistry Pub Date : 2025-02-04 DOI: 10.1039/D4NJ05390G

Di Luo, Guihong Song, Lingyu Zhang, Yusheng Wu and Junhua You

{"title":"Microstructure and thermoelectric properties of Mg3(Bi,Sb)2 films containing a Mg metal phase","authors":"Di Luo, Guihong Song, Lingyu Zhang, Yusheng Wu and Junhua You","doi":"10.1039/D4NJ05390G","DOIUrl":"https://doi.org/10.1039/D4NJ05390G","url":null,"abstract":"Mg–Bi–Sb films with different Mg contents were prepared by magnetron sputtering on single-crystal Si(100) substrates containing 500 nm thick silicon oxide. The phase composition, chemical composition, surface and cross-sectional morphology, Seebeck coefficient, electrical conductivity, power factor, and density of states effective mass of the films were studied and analyzed. The results showed that the deposited Mg–Bi–Sb films consisted of a Mg3(Bi,Sb)2 solid solution and Mg metal phase. When the amount of Mg metal phase in the films increased, the room temperature carrier concentration, electrical conductivity and density of states effective mass increased, but the Seebeck coefficient and mobility decreased for the deposited Mg3(Bi,Sb)2 films with different Mg metal contents. In the studied range of Mg metal content (20.25 to 64.25 vol%), the power factor first increased and then decreased. Therefore, a small amount of Mg metal content in the Mg3(Bi,Sb)2 solid solution films improved the power factor. The standardized maximum power density (PDmax·L/ΔT2) of a thermoelectric generator based on the S2 film was 104.4 and 113.8 μW m−1 K−2 at temperature differences of ΔT = 35 K and 45 K.","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 9","pages":" 3696-3707"},"PeriodicalIF":2.7,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143475090","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