ChemistrySelect最新文献_第10页

Visible-Light-Induced Catalyzed C─H/N─H Cross Coupling of Quinoxalin-2(1H)-ones with Aliphatic Amines Using Mesoporous Graphitic Carbon Nitride 使用介孔氮化石墨碳催化喹喔啉-2(1H)-酮与脂肪族胺的可见光催化 C─H/N─H 交叉偶联反应

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-02-18 DOI: 10.1002/slct.202405537

Xueying Lin, Congxuan Fan, Mushou Cai, Guangliang Song, Hongjun Zhu

引用次数: 0

Convenient Preparation of 3,6-Anhydro Sugars via Intramolecular Cyclization of 6‑O‑Tosyl Pyranosides Promoted by a Catalytic Amount of TBAF

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-02-18 DOI: 10.1002/slct.202500498

Zhi-Fei Chen, Gao-Lei Xi, Qiang Liu, Li-Li Cai, Meng-Zhao Jia, Qing-Fu Wang, Kai Yang

引用次数: 0

RETRACTION: Therapeutic Delivery Potential of Covalent Organic Framework (COF): Intuition from Theoretical Calculations

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-02-18 DOI: 10.1002/slct.202500755

引用次数: 0

Improving the Performance of Copper-Based Metal-Organic Decomposition Inks Modified with Copper-Coated Carbon Nanotubes 提高用铜包覆碳纳米管改性的铜基金属有机分解油墨的性能

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-02-18 DOI: 10.1002/slct.202405161

Lei Zhang, Kenan Yang, Daodao Xue, Shisheng Zhou

{"title":"Improving the Performance of Copper-Based Metal-Organic Decomposition Inks Modified with Copper-Coated Carbon Nanotubes","authors":"Lei Zhang, Kenan Yang, Daodao Xue, Shisheng Zhou","doi":"10.1002/slct.202405161","DOIUrl":"https://doi.org/10.1002/slct.202405161","url":null,"abstract":"Copper ink is inexpensive but easily oxidized, often requiring high-temperature sintering and reducing atmosphere. However, high temperatures and reducing atmospheres should be avoided in practical applications. In this study, electroless copper-coated CNTs (Cu-CNTs) with high mechanical strength, high conductivity, and oxidation resistance are used as conductive fillers. Isooctylamine and 2-amino-2-methyl-1-propanol (AMP) are used as complex agents. A copper-based metal-organic decomposition (Cu MOD) ink that can be sintered quickly and at low temperature in an air atmosphere is successfully prepared. The Cu-CNTs uniformly dispersed in the Cu MOD ink act as heterogeneous nucleation sites, not only facilitating the nucleation and growth of copper nanoparticles but also serving as bridges to link the newly formed copper nanoparticles together. The densification, uniformity and mechanical stability of the conductive pattern are significantly improved. Notably, when the Cu-CNTs content is 0.25 wt.%, the densification, conductivity, and mechanical stability of the cured patterns are maximally improved. The resistivity of the Cu-CNTs-0.25 wt.% conductive pattern is as low as 30 × 10−5 Ω·cm. After 1000 bending cycles, the relative resistance (R/R0) of the conductive pattern only increased to 3.4. Due to its excellent conductivity and mechanical stability, it holds significant potential for application in low-cost flexible printed electronic devices.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"10 7","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431464","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

Investigating the Antimicrobial, Antidiabetes, and Antioxidant Potential of Hydroxyl-Containing Schiff Bases, In Vitro, and Computational Studies

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-02-18 DOI: 10.1002/slct.202404896

Adesola A. Adeleke, Segun D. Oladipo, Robert C. Luckay, Eric Oluwafisayo Akintemi, Kolawole A. Olofinsan, Sodiq T. Yussuf, Damilare D. Ademosu

{"title":"Investigating the Antimicrobial, Antidiabetes, and Antioxidant Potential of Hydroxyl-Containing Schiff Bases, In Vitro, and Computational Studies","authors":"Adesola A. Adeleke, Segun D. Oladipo, Robert C. Luckay, Eric Oluwafisayo Akintemi, Kolawole A. Olofinsan, Sodiq T. Yussuf, Damilare D. Ademosu","doi":"10.1002/slct.202404896","DOIUrl":"https://doi.org/10.1002/slct.202404896","url":null,"abstract":"Four azomethine compounds (L1–L4) derived from the reaction of p-hydroxybenzaldehyde and various primary amines are reported herein. Various analytical and spectroscopic techniques were employed to characterize the synthesized compounds. The antidiabetic properties of L1–L4 were evaluated by exploring α-amylase and α-glucosidase assays, where L2 and L3 displayed good antidiabetic properties with an IC50 values of 0.06 and 0.03 mg/ml for the α-amylase assay, respectively, better than the acarbose (standard drug) with IC50 value of 0.08 mg/ml. With the exception of L4, the antioxidant activity of L1–L4 showed good nitric oxide radical scavenging capacity and their significant DPPH free radical scavenging ability. The antibacterial activities of the compounds are dose-dependent, and compounds L1 and L2 showed notable activities. Computational studies of L1–L4 using density functional theory and the molecular docking methods indicated that L2 had an energy gap of 7.10 eV, making it the least reactive, while L3 had an energy gap of 6.52 eV, making it the most chemically reactive.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"10 7","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431466","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

RETRACTION: Modelling of Tungsten (C59 W), Osmium (C59Os), and Platinum (C59Pt) Doped Fullerenes for Drug Delivery of Biguanides (BNG) and Metformin (MET): DFT Perspective 回放：用于双胍类 (BNG) 和二甲双胍 (MET) 给药的掺钨 (C59W)、掺锇 (C59Os) 和掺铂 (C59Pt) 富勒烯建模：DFT 透视

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-02-18 DOI: 10.1002/slct.202500758

引用次数: 0

RETRACTION: Molecular Simulation of the Effect of Electron Donor/Acceptor Groups on Fluvoxamine/Serotonin Interactions as a Strategy for COVID-19 Mitigation

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-02-18 DOI: 10.1002/slct.202500756

引用次数: 0

Fabrication of the Plant Extract Loaded Antimicrobial Nanofiber for Biofilm Associated Infections

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-02-18 DOI: 10.1002/slct.202404790

Sevim Feyza Erdoğmuş, Cengiz Sarikurkcu, Mustafa Abdullah Yilmaz

{"title":"Fabrication of the Plant Extract Loaded Antimicrobial Nanofiber for Biofilm Associated Infections","authors":"Sevim Feyza Erdoğmuş, Cengiz Sarikurkcu, Mustafa Abdullah Yilmaz","doi":"10.1002/slct.202404790","DOIUrl":"https://doi.org/10.1002/slct.202404790","url":null,"abstract":"This study aims to determine the chemical composition of Stachys tmolea and to assess its antimicrobial potential for biomedical applications. The 53 phytochemicals of Stachys tmolea were elucidated by liquid chromatography–electrospray tandem mass spectrometry. The rich phytochemical profile of Stachys tmolea highlights the prevalence of quinic acid, chlorogenic acid, and cosmosiin in the plant's methanol extract. The electrospinning technique was used to obtain polycaprolactone/chitosan/sericin nanofibers. The nanofiber structure is characterized by SEM, XRD, FITR, and TGA. The highest antimicrobial activity (19 ± 1.00) was found in 100 mg/mL of plant extract against Staphylococcus aureus ATCC 25923 and was evaluated as susceptible. Staphylococcus aureus ATCC 25923 and Listeria monocytogenes ATCC 1911 were found to be sensitive to plant extract loaded nanofiber. Antibiofilm test results revealed that the most effective group was determined as 2 x MIC of the plant extract (72% inhibition) for biofilm inhibition of Staphylococcus aureus ATCC 25923.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"10 7","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431262","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

Harnessing of Carboxymethylated Rice Straw Biowaste as Anionic Adsorbent for Cationic Dye: Isotherm, Kinetics, Thermodynamics, and Reaction Mechanism

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-02-18 DOI: 10.1002/slct.202405102

Khaled M. Mostafa, Azza A. El-Sanabary

{"title":"Harnessing of Carboxymethylated Rice Straw Biowaste as Anionic Adsorbent for Cationic Dye: Isotherm, Kinetics, Thermodynamics, and Reaction Mechanism","authors":"Khaled M. Mostafa, Azza A. El-Sanabary","doi":"10.1002/slct.202405102","DOIUrl":"https://doi.org/10.1002/slct.202405102","url":null,"abstract":"Rice straw (RS) biowaste was turned into a high-performance anionic adsorbent for basic red 46 (cationic dye) by treating it with monochloroacetic acid via carboxymethylation utilizing a microwave heating method. For this objective, five levels of carboxymethylated RS (CMRS) with varying degrees of carboxymethylation expressed as carboxyl content, denoted as (CMRS-I to CMRS-V), were synthesized and characterized using FTIR, SEM, XRD, zeta potential, and BET analysis. Different parameters impacting cationic dye adsorption represented as adsorption capacities, such as pH, carboxymethylation extent, treatment duration, and cationic dye and RS concentrations, were thoroughly investigated. Various kinetic models (pseudo-first-order and pseudo-second-order), isothermal (Langmuir, Freundlich, and Temkin), and thermodynamic investigations were used. The results demonstrated that (a) FTIR, SEM, XRD, zeta potential, and BET analysis confirmed the formation of carboxyl groups onto the CMRS; (b) the adsorption capacity increased by increasing the pH value from 1 to 10, the extent of carboxymethylation from 37.9 to 189.7 meq-COOH/100 g sample, cationic dye concentration from 10 to 100 mg/L, and the adsorption time up to 180 min then leveled off afterward; (c) maximum adsorption capacity was determined to be 31.2 mg/g at pH 10, 50 mg/L dye concentration, 180 min adsorption period, and 0.1 g adsorbent; and (d) kinetic and isothermal experiments demonstrated the superiority of the pseudo-second-order rate equation and Langmuir model with higher R2 values. The computed thermodynamic characteristics showed that the adsorption process was feasible, spontaneous, and exothermic at 298–318 K. Finally, a comparison with other adsorbents, regeneration, and adsorption mechanisms has been proposed.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"10 7","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431314","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

A Self-Supported Electrode for the Alkaline HER Based on Electrodeposition of Platinum on Metal Fiber Felt

IF 1.9 4区化学

ChemistrySelect Pub Date : 2025-02-18 DOI: 10.1002/slct.202405005

Biying Ren, Huan Zhang, Xiangkun Jia, JianPing Gao, Jun Xie, Xikui Wang

引用次数: 0