Journal of The Chinese Chemical Society最新文献_第3页

Theoretical simulations about chalcogen-substituted hydrogen bonding interactions and ESIPT behaviors for 3-benzooxazol-2-yl-3′-dimethylamino-biphenyl-2-ol derivatives 3-苯并恶唑-2-酰基-3 ' -二甲氨基-联苯-2-醇衍生物的硫代氢键相互作用和ESIPT行为的理论模拟

IF 1.5 4区化学

Journal of The Chinese Chemical Society Pub Date : 2025-07-01 DOI: 10.1002/jccs.70052

Qi Zhen, Huiyun Shi, Yong Wen, Jiahe Chen

{"title":"Theoretical simulations about chalcogen-substituted hydrogen bonding interactions and ESIPT behaviors for 3-benzooxazol-2-yl-3′-dimethylamino-biphenyl-2-ol derivatives","authors":"Qi Zhen, Huiyun Shi, Yong Wen, Jiahe Chen","doi":"10.1002/jccs.70052","DOIUrl":"https://doi.org/10.1002/jccs.70052","url":null,"abstract":"2-(2′-hydroxyphenyl)benzazoles (HBX) derivatives possess significant biological and photochemical applications. 3-benzooxazol-2-yl-3′-dimethylamino-biphenyl-2-ol (BYDBO) as one of novel HBX derivatives exhibits an asymmetrical configuration with intramolecular hydrogen bonding wire that present superior luminescent properties. Inspired by the regulated excited state dynamics by doping chalcogen elements, in this work, we mainly focus on clarifying the related excited state behaviors for three BYDBO derivatives (i.e., BYDBO-O, BYDBO-S and BYDBO-Se) theoretically. Elucidating the intramolecular hydrogen bonding interactions, photo-induced charge recombination, effects of atomic electronegativity related to oxygen elements, and relative excited state intramolecular proton transfer (ESIPT) behaviors, we mainly elaborate the chalcogen-element-related ESIPT mechanism for BYDBO derivatives. Based on our results, we sincerely wish our work could facilitate comprehending molecular excited state dynamics and designing novel luminescent organic materials for HBX derivatives.","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":"72 8","pages":"840-847"},"PeriodicalIF":1.5,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144897258","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

Corncob biochar–supported Pd electrocatalysts for ethanol oxidation reaction in alkaline medium: Effect of pyrolysis temperature and addition of Ni 玉米芯生物炭负载Pd电催化剂对碱性介质中乙醇氧化反应的影响：热解温度和Ni添加量的影响

IF 1.5 4区化学

Journal of The Chinese Chemical Society Pub Date : 2025-06-29 DOI: 10.1002/jccs.70046

Arwil Nathaniel R. Alfonso, Matthew L. Villanueva, Justienne Rei P. Laxamana, Hannah Grace G. Necesito, Bernard John V. Tongol

{"title":"Corncob biochar–supported Pd electrocatalysts for ethanol oxidation reaction in alkaline medium: Effect of pyrolysis temperature and addition of Ni","authors":"Arwil Nathaniel R. Alfonso, Matthew L. Villanueva, Justienne Rei P. Laxamana, Hannah Grace G. Necesito, Bernard John V. Tongol","doi":"10.1002/jccs.70046","DOIUrl":"https://doi.org/10.1002/jccs.70046","url":null,"abstract":"This study investigated Pd-based electrocatalysts supported on corncob-derived biochar, pyrolyzed at various temperatures, for ethanol oxidation reaction in an alkaline medium, addressing challenges in direct ethanol fuel cells (DEFCs). Biochar, pyrolyzed at various temperatures (i.e., from 600 to 1000°C) displayed porous morphology and surface oxygenated groups, as confirmed by scanning electron microscopy and energy dispersive x-ray (SEM–EDX) and Fourier transform Infrared (FTIR) spectroscopy. The corncob biochar revealed a mesoporous structure based on Brunauer-Emmett-Teller (BET) analysis with graphitic carbon as confirmed by X-ray diffraction (XRD) analysis. The prepared Pd/biochar, with a trace amount of Ni, was investigated by SEM–EDX, transmission electron microscopy (TEM), XRD, and X-ray photoelectron spectroscopy (XPS). Among the synthesized catalyst composites, PdNi/CB600 demonstrated the least positive onset potential (−0.719 V), highest anodic peak current density (21.69 mA·cm−2), and highest If/Ib ratio (0.851) toward ethanol oxidation reaction in an alkaline medium, as determined by cyclic voltammetry (CV) and Tafel plot studies. Chronoamperometric analysis demonstrated the superior stability of PdNi/CB600 (65.33%) compared to commercial PdNi/C. These results highlight the corncob biochar's superior electrocatalytic activity over commercial carbon black as a support material for Pd-based electrocatalysts in a basic medium.","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":"72 8","pages":"878-891"},"PeriodicalIF":1.5,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144897750","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

Contents and Masthead: Journal of the Chinese Chemical Society 6/2025 目录及刊头：《中国化学会学报》第6/2025期

IF 1.6 4区化学

Journal of The Chinese Chemical Society Pub Date : 2025-06-19 DOI: 10.1002/jccs.70047

引用次数: 0

Cover: Journal of the Chinese Chemical Society 06/2025 封面：《中国化学会会刊》2025年第6期

IF 1.6 4区化学

Journal of The Chinese Chemical Society Pub Date : 2025-06-19 DOI: 10.1002/jccs.70048

引用次数: 0

Preview: Journal of the Chinese Chemical Society 06/2025 《中国化学会学报》2025年第6期

IF 1.6 4区化学

Journal of The Chinese Chemical Society Pub Date : 2025-06-19 DOI: 10.1002/jccs.70049

引用次数: 0

A novel antibody-aptamer sandwich-type electrochemical biosensor for femtomolar detection of VEGF165 in patients with lymphoma cancer 新型抗体适体三明治型电化学生物传感器飞摩尔检测淋巴瘤患者VEGF165

IF 1.5 4区化学

Journal of The Chinese Chemical Society Pub Date : 2025-06-16 DOI: 10.1002/jccs.70044

Z. Hatami, M. Shamsipur, F. Jalali, L. Farzin, A. Barati

{"title":"A novel antibody-aptamer sandwich-type electrochemical biosensor for femtomolar detection of VEGF165 in patients with lymphoma cancer","authors":"Z. Hatami, M. Shamsipur, F. Jalali, L. Farzin, A. Barati","doi":"10.1002/jccs.70044","DOIUrl":"https://doi.org/10.1002/jccs.70044","url":null,"abstract":"Vascular endothelial growth factor (VEGF165) is a homodimeric protein that plays a key role in tumor formation and progression. Therefore, early determination of blood levels of VEGF165 is vital in the diagnosis and successful treatment of different types of cancers. In the present study, a novel sandwich-type biosensor was designed for sensitive and selective determination of VEGF165 in human blood serum samples. Carbon dots (CDs) were used as inexpensive and conductive nanomaterials for immobilization of the antibody (Ab) on the electrode surface. The prepared carbon dots were characterized by transmission electron microscopy (TEM), dynamic light scattering (DLS), FT-IR, UV–Visible spectrophotometry, and spectrofluorimetry. Highly fluorescent particles were formed due to the quantum restrictions brought about by their ultrasmall size (average size ~10 nm). The high surface-to-volume ratio of carbon dots, as well as the presence of many oxygen-containing functional groups, was appropriate for attachment of large amounts of Ab moieties. In the presence of VEGF165, a highly selective VEGF165-Ab complex was formed on the electrode surface, which was then bound to the added selective aptamer to form Aptamer-VEGF165-Ab. As the electrochemical probe, methylene blue (MB) was used, which has a high binding tendency to guanine bases of the aptamer (MB-Aptamer-VEGF165-Ab) on the electrode surface, which resulted in well-known MB+/MB redox peaks. A linear relationship was obtained between peak currents and log [VEGF165] in the wide concentration range of 0.01 pM to 10 nM (0.34–34 × 106 pg/mL) by differential pulse voltammetry (pH 7.4, 0.1 M PBS). The limit of detection (LOD) was calculated as 3.3 fM (0.112 pg/mL) based on S/N = 3. The proposed biosensor was successfully applied to the determination of VEGF165 in blood serum samples of patients with lymphoma cancer.","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":"72 8","pages":"892-901"},"PeriodicalIF":1.5,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144897634","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

Spider-egg-like structured α-MnO₂ as an efficient cathode material for aqueous rechargeable zinc-ion batteries 蜘蛛卵状结构α- mno2作为一种高效的锌离子电池正极材料

IF 1.5 4区化学

Journal of The Chinese Chemical Society Pub Date : 2025-06-15 DOI: 10.1002/jccs.70045

Lyn Marie de Juan-Corpuz, Michael Franco, Wei Jian Sim, Gil Nonato Santos, Tetsu Yonezawa, Ryan D. Corpuz

{"title":"Spider-egg-like structured α-MnO₂ as an efficient cathode material for aqueous rechargeable zinc-ion batteries","authors":"Lyn Marie de Juan-Corpuz, Michael Franco, Wei Jian Sim, Gil Nonato Santos, Tetsu Yonezawa, Ryan D. Corpuz","doi":"10.1002/jccs.70045","DOIUrl":"https://doi.org/10.1002/jccs.70045","url":null,"abstract":"This study reports the direct hydrothermal growth of α-MnO₂ on carbon fiber textile without the use of polymeric binders, yielding a unique “spider-egg-like” morphology. Unlike conventional MnO₂-based cathodes, where active materials require binders and conductive additives, this approach ensures strong adhesion to the substrate while maintaining high conductivity and mechanical stability. SEM revealed spherical MnO₂ structures entangled within a nanowire network, creating a porous, interconnected architecture that enhances ion diffusion and charge transfer. XRD confirmed the formation of crystalline α-MnO₂, while EDS and XPS validated its elemental composition and mixed-valence states, highlighting its redox activity. Electrochemical characterization demonstrated its potential as a cathode for ARZIBs, delivering an initial capacity of 367 mAh/g. The composite maintained stable discharge capacities of 218, 120, 102, and 79 mAh/g at 0.1C, 0.3C, 0.5C, and 1C, respectively, with 88.94% capacity retention over 350 cycles. Its long-term stability and nearly 100% Coulombic efficiency confirm the robustness of the direct-growth architecture in facilitating reversible Zn2+ intercalation. The binder-free synthesis method presents a scalable and eco-friendly alternative to conventional electrode fabrication, reducing processing steps while improving electrochemical performance. This study introduces a novel approach to designing MnO₂ cathodes, offering a high-performance, mechanically stable, and conductive material for next-generation ARZIBs.","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":"72 8","pages":"870-877"},"PeriodicalIF":1.5,"publicationDate":"2025-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144897234","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

Construction of BiOBr/Bi2WO6 S-scheme heterojunction photocatalyst for enhanced photocatalytic degradation for tetracycline removal BiOBr/Bi2WO6 s型异质结光催化剂的构建及其光催化降解四环素的研究

IF 1.5 4区化学

Journal of The Chinese Chemical Society Pub Date : 2025-06-05 DOI: 10.1002/jccs.70034

Lan Zhang, Zhipeng Zou, Baofei Hao, Huizhong Ma

引用次数: 0

Synthesis, characterization, and optimization of cellulose-based hydrogel films for controlled levofloxacin release with reversed-phase high-performance liquid chromatography validation 纤维素基水凝胶膜的合成、表征和优化，用于控制左氧氟沙星的释放，并进行反相高效液相色谱验证

IF 1.5 4区化学

Journal of The Chinese Chemical Society Pub Date : 2025-06-04 DOI: 10.1002/jccs.70041

Abubakar Iqbal, Rehana Saeed

{"title":"Synthesis, characterization, and optimization of cellulose-based hydrogel films for controlled levofloxacin release with reversed-phase high-performance liquid chromatography validation","authors":"Abubakar Iqbal, Rehana Saeed","doi":"10.1002/jccs.70041","DOIUrl":"https://doi.org/10.1002/jccs.70041","url":null,"abstract":"The increasing demand for cost-effective and efficient drug delivery systems has catalyzed interest in biocompatible materials like cellulose-based hydrogels. This study presents the development and optimization of cellulose-based hydrogel films for the controlled release of levofloxacin, addressing challenges in drug stability and targeted delivery. The films, synthesized using hydroxypropyl methylcellulose (HPMC), carboxymethyl cellulose (CMC), and polyethylene glycol, were confirmed via FTIR analysis to involve physical cross-linking and hydrogen bonding. SEM analysis revealed that the composition significantly impacts surface morphology and pore structure, with higher CMC content producing larger micropores due to electrostatic interactions. Employing a central composite design under response surface methodology, the mechanical properties, including tensile strength, Young's modulus, elongation, and swelling, were optimized for performance and efficiency. A refined RP-HPLC method, validated for high accuracy, precision, and sensitivity, demonstrated recovery rates between 97.69% and 99%, providing a reliable and time-efficient tool for levofloxacin quantification. Drug release studies indicated that polymer composition plays a critical role in release kinetics, with higher HPMC content promoting faster release and higher CMC content enabling sustained release, aligning with the Peppas model for a diffusion-relaxation-erosion mechanism. This study highlights the innovation of integrating cellulose-based hydrogels with validated, cost-effective analytical methods to deliver a scalable, time-efficient drug delivery solution. The findings offer valuable insights into the development of advanced drug delivery systems, demonstrating the potential of these hydrogels for broader therapeutic applications.","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":"72 8","pages":"910-925"},"PeriodicalIF":1.5,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144897556","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

Electrocatalytic properties of MoS₂ synthesized using molybdenum foam for hydrogen evolution reaction 泡沫钼合成MoS 2的析氢电催化性能

IF 1.6 4区化学

Journal of The Chinese Chemical Society Pub Date : 2025-06-01 DOI: 10.1002/jccs.70042

Muhammad A. Memon, Faaz A. Butt, Saad Nadeem

{"title":"Electrocatalytic properties of MoS₂ synthesized using molybdenum foam for hydrogen evolution reaction","authors":"Muhammad A. Memon, Faaz A. Butt, Saad Nadeem","doi":"10.1002/jccs.70042","DOIUrl":"https://doi.org/10.1002/jccs.70042","url":null,"abstract":"The development of electrocatalysts based on non-noble metals is vital for advancing the Hydrogen Evolution Reaction (HER) in water electrolysis, a key process for clean energy production. In this study, one-dimensional (1D) nanowires were synthesized on Molybdenum/Nickel Foam (MNF) using a solvothermal approach, with a focus on the impact of varying heating durations. Electrocatalytic performance was assessed through Tafel analysis across high and low potential regions using polarization plots. The sample heated for 12 h at 160°C demonstrated an overpotential of 158.8 mV at a current density of 10 mA/cm2, with Tafel slopes ranging from 489 to 254 mV/dec across different potential regions. Furthermore, structural and compositional analyses were conducted using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD) techniques. In addition, charge transfer kinetics were studied using electrochemical impedance spectroscopy (EIS) and stability tests were also conducted to test the catalyst performance under longer time periods.","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":"72 7","pages":"787-794"},"PeriodicalIF":1.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144663742","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