ChemPlusChem最新文献_第9页

An Anthracene-Imidazoanthraquinone Conjugate Exhibiting Ratiometric Fluorescence Turn - on Behavior with CN^- and F^- Anions. 一种蒽-咪唑蒽醌偶联物，具有CN-和F-阴离子的比例荧光开启行为。

IF 3 4区化学

ChemPlusChem Pub Date : 2025-01-08 DOI: 10.1002/cplu.202400660

Ravisen Rai, Mohammed Kaleem, Rimpi Bhandari, Arvind Misra

{"title":"An Anthracene-Imidazoanthraquinone Conjugate Exhibiting Ratiometric Fluorescence Turn - on Behavior with CN- and F- Anions.","authors":"Ravisen Rai, Mohammed Kaleem, Rimpi Bhandari, Arvind Misra","doi":"10.1002/cplu.202400660","DOIUrl":"10.1002/cplu.202400660","url":null,"abstract":"A new conjugate, 2-(4-(anthracen-9-yl) phenyl)-[1,2-d]imidazole-1H-anthraquninone (AQI) has been designed and synthesized as a molecular probe 4. The photophysical and electrochemical behavior of the probe in the absence and presence of different class of ions were examined in acetonitrile solution. The probe 4 with F- and CN- anions showed ratiometric fluorescence \"turn - On\" response due to variation in ICT processes. Cyclic voltammetry of probe exhibited reversible redox behavior wherein the band gap (Eg =1240/λmax) of probe (ΔE =3.220 eV) decreased (~2.583 eV) after the interaction with F- and CN- anions. The probe interacted with both anions in a 1 : 1 stoichiometry with good binding constants (KF -=.05×106 M-1 and KCN - = 1.46×106 M-1) and limit of detection/quantification (LOD/LOQ) in nM range. pH studies showed that probe 4 has potential to detect the anions under physiological conditions (between pH 6-10). The probe upon interaction with both F- and CN- anions showed a naked-eye sensitive color change in solution and on test paper strips. The probable complexes, 4+F-/CN- upon interaction with trifluoroacetic (TFA) acid showed reversible behavior wherein the intensity of probe rejuvenated. The output emission signal of the probe upon providing F- and TFA as a chemical inputs mimic the function of a memory device with ''write-read-erase-read'' functions and has also been utilized to construct a molecular key-pad lock security device system. Also, the probe showed sensitivity to detect the F- in toothpaste. The mechanism of interaction has been confirmed by different spectroscopic data analysis.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202400660"},"PeriodicalIF":3.0,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142941810","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

Boosting the Performance of a Zero-gap Flow Microbial Fuel Cell by Immobilized Redox Mediators. 用固定化氧化还原介质提高零间隙流微生物燃料电池的性能。

IF 3 4区化学

ChemPlusChem Pub Date : 2025-01-04 DOI: 10.1002/cplu.202400586

Dmitry Chikin, Mikhail Petrov, Pavel Loktionov, Roman Pichugov, Anatoly Antipov

{"title":"Boosting the Performance of a Zero-gap Flow Microbial Fuel Cell by Immobilized Redox Mediators.","authors":"Dmitry Chikin, Mikhail Petrov, Pavel Loktionov, Roman Pichugov, Anatoly Antipov","doi":"10.1002/cplu.202400586","DOIUrl":"10.1002/cplu.202400586","url":null,"abstract":"Although microbial fuel cells (MFC) could be a promising energy source, their implementation is largely limited by low performance. There are several approaches to overcome this issue. For example, MFC performance can be enhanced using redox mediators (RM) capable of transferring electrons between microorganisms and MFC electrodes. The other, quite novel approach is to use zero-gap electrochemical cells, which minimize the distance between MFC electrodes and, therefore, its internal resistance. This work aims to investigate the compatibility of these approaches. First, a template electropolymerization of polypyrrole (PPy) on carbon felt was carried out in the presence of 2,7-anthraquinone disulfonate (AQDS) acting as an RM. These materials were then used as the anode of a zero-gap double chamber MFC inoculated with sediment from a natural water body and continuously fed with artificial wastewater. On the scales of 45 and 64 days, such cells exhibited power density of up to 900 mW m-2, while unmodified cells demonstrated values tens of times lower, indicating that RM appears to extensively incorporate weak electricigens from the inoculant in the MFC operation. PPy/AQDS electrodes retain electroactive properties during long-term tests, resulting in a theoretical turnover rate of AQDS molecules up to 590.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202400586"},"PeriodicalIF":3.0,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142925921","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 High-Performance Electrochemical Sensor Based on Ni−Pt Bimetallic Nanoparticles Doped Metal Organic Framework ZIF-8 for the Detection of Dopamine 基于Ni-Pt双金属纳米颗粒掺杂金属有机骨架ZIF-8的多巴胺检测传感器

IF 3 4区化学

ChemPlusChem Pub Date : 2025-01-03 DOI: 10.1002/cplu.202400734

Jassem Wannassi, Nadhem Missaoui, Chama Mabrouk, Carlos A. Castilla-Martinez, Youssra Moumen, Fraj Echouchene, Houcine Barhoumi, Umit B. Demirci, Hamza Kahri

{"title":"A High-Performance Electrochemical Sensor Based on Ni−Pt Bimetallic Nanoparticles Doped Metal Organic Framework ZIF-8 for the Detection of Dopamine","authors":"Jassem Wannassi, Nadhem Missaoui, Chama Mabrouk, Carlos A. Castilla-Martinez, Youssra Moumen, Fraj Echouchene, Houcine Barhoumi, Umit B. Demirci, Hamza Kahri","doi":"10.1002/cplu.202400734","DOIUrl":"10.1002/cplu.202400734","url":null,"abstract":"In this paper, microporous Zn-based zeolitic imidazolate framework with the sodalite cage structure (SOD-ZIF-8) was synthesized by the solvothermal method. Powder X-ray diffraction (PXRD), scanning electron microscopy (SEM) and N2 adsorption were employed to characterize the synthesized material. An ultra-sensitive electrochemical sensor based on highly dispersed bimetallic Ni−Pt nanoparticles immobilized on zeolitic metal–organic framework ZIF-8 for dopamine quantification is introduced for the first time. The as-prepared Ni−Pt@ZIF-8 composite was deposited onto a glassy carbon electrode (GCE), serving as a sensor that exhibits superior properties for the detection of dopamine (DA). A Box-Behnken design was employed, and response surface methodology (RSM) was applied to investigate the impact of various experimental parameters on dopamine detection. The parameters optimized in this study included pH, drying time (hours), drop volume for deposition (μL), and accumulation time (minutes). The Box-Behnken experimental design enabled the systematic optimization of these factors to enhance the sensor‘s performance. Benefiting from the synergy of ZIF-8 and Ni−Pt bimetallic nanoparticles, the Ni−Pt@ZIF-8 composite exhibited high sensitivity towards dopamine, achieving a low detection limit of 1.0 nM. The sensor‘s linear response to dopamine (1 nM to 10 μM), resistance to interference, and high recovery in human serum, coupled with its simple fabrication, make it a promising tool for real-world dopamine detection.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"90 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142918791","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

Dihydrolevoglucosenone (Cyrene^TM) as a Bio-derived Liquid Organic Hydrogen Carrier. 二氢左旋葡萄糖酮（CyreneTM）作为生物衍生的液态有机氢载体。

IF 3 4区化学

ChemPlusChem Pub Date : 2025-01-03 DOI: 10.1002/cplu.202400639

Takumi Ichimura, Hitoshi Kasai, Kouki Oka

{"title":"Dihydrolevoglucosenone (CyreneTM) as a Bio-derived Liquid Organic Hydrogen Carrier.","authors":"Takumi Ichimura, Hitoshi Kasai, Kouki Oka","doi":"10.1002/cplu.202400639","DOIUrl":"10.1002/cplu.202400639","url":null,"abstract":"Organic hydrides can store hydrogen via chemical bonding under ambient conditions, enabling the safe storage and transportation of hydrogen gas using the same infrastructure for gasoline. However, in previous research, most organic hydrides have been produced from petroleum, and therefore replacing them with earth-abundant or renewable compounds is essential to ensure sustainability. This study demonstrates dihydrolevoglucosenone (CyreneTM), which is a biodegradable liquid ketone produced from cellulose (a typical biomass) on an industrial scale, as a new renewable organic hydride. CyreneTM (hydrogen acceptor) is hydrogenated under ambient hydrogen pressure with a highly durable metal complex catalyst to produce 1,6-anhydro-3,4-dideoxy-β-D-threo-hexopyranose (Cyrene-OH, hydrogen adduct). Cyrene-OH stores hydrogen via chemical bonding under ambient conditions, and is dehydrogenated by heating in the presence of the same catalyst to release hydrogen gas and reproduce CyreneTM. This study reports the first attempt to apply compounds, which can be produced directly from biomass on an industrial scale, to organic hydrides, and promotes the development of earth-abundant biomass for sustainable hydrogen storage.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202400639"},"PeriodicalIF":3.0,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142918793","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

FeCu−N6−C Diatomic Sites Catalyst for the Boosted Oxygen Reduction Reactions in Zinc-Air Batteries FeCu-N6-C双原子位催化剂在锌-空气电池中促进氧还原反应。

IF 3 4区化学

ChemPlusChem Pub Date : 2024-12-23 DOI: 10.1002/cplu.202400733

Longrun Sang, Haosheng Zhu, Shan Zhang, Shipeng Wang, ZiPan Jiao, Yunsi Wang, Peng Zhang, Riming Hu, Bingxin Liu, YongCheng Li

{"title":"FeCu−N6−C Diatomic Sites Catalyst for the Boosted Oxygen Reduction Reactions in Zinc-Air Batteries","authors":"Longrun Sang, Haosheng Zhu, Shan Zhang, Shipeng Wang, ZiPan Jiao, Yunsi Wang, Peng Zhang, Riming Hu, Bingxin Liu, YongCheng Li","doi":"10.1002/cplu.202400733","DOIUrl":"10.1002/cplu.202400733","url":null,"abstract":"Due to the high catalytic activity and stability for oxygen reduction reaction, N-coordinated Fe−Cu dual-metal doped carbon material (FeCu−N−C) is considered to be one of the promising electrode materials for metal-air battery and fuel cells. Herein, FeCu−N−C dual-metal catalysts was synthesized by an adsorption-calcination strategy. The prepared FeCu−N−C exhibited high activity and stability both in alkaline and acidic media. In alkaline/acid medium, the half-wave potential reaches to 0.90/0.80 V, which is better than Fe−N−C catalyst. The power density for FeCu−N−C in zinc-air battery reaches to 220 mW cm−2 and shows high electrochemical stability for more than 600 hours in charge/discharge cycles, much higher than 130 hours for Pt/C (40 %) and 100 hours for Fe−N−C. Density-functional theory calculations showed that the FeCu−N−C dual-metal catalysts got lower overpotential of 0.50 V than Fe−N−C (0.53 V), which improved the ORR activity. The results are helpful for the deep understanding of high-performance diatomic catalysts.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"90 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875675","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

Carbidopa and ZnCarbidopa Induce Reductive Stress in MDA-MB-231 Cells 卡比多巴和锌卡比多巴诱导MDA-MB-231细胞的还原应激。

IF 3 4区化学

ChemPlusChem Pub Date : 2024-12-23 DOI: 10.1002/cplu.202400596

Agustin B. Actis Dato, Luciana G. Naso, Valeria R. Martínez, Evelina G. Ferrer, Patricia A. M. Williams

{"title":"Carbidopa and ZnCarbidopa Induce Reductive Stress in MDA-MB-231 Cells","authors":"Agustin B. Actis Dato, Luciana G. Naso, Valeria R. Martínez, Evelina G. Ferrer, Patricia A. M. Williams","doi":"10.1002/cplu.202400596","DOIUrl":"10.1002/cplu.202400596","url":null,"abstract":"The redox imbalance, caused by depletion or generation of reactive oxygen species (ROS), is a key mechanism by which metal complexes exert anticancer effects. Carbidopa has shown the ability to inhibit the MDA-MB-231 cell line, a highly aggressive triple-negative human breast adenocarcinoma, by inducing reductive stress. The metal complex of carbidopa with zinc (ZnCarbi) was designed to modify carbidopa's structure and exhibited increased cytotoxicity against MDA-MB-231 cells. Interestingly, ZnCarbi selectively targets certain cancer cells, showing no impact on the viability of normal HEK293 (human embryonic kidney) cells or other cancer cell lines like A549 (human lung adenocarcinoma), LM3 (murine breast adenocarcinoma), or HCT116 (human colon cancer). Treatment with carbidopa and ZnCarbi induces reductive stress, decreases ROS levels, increases the GSH/GSSG ratio, and protects cells from H2O2-induced death. Both compounds also cause mitochondrial damage, leading to cell death, and exhibit antimetastatic effects by inhibiting cell migration and invasion of MDA-MB-231 cells. Interaction studies with bovine serum albumin showed moderate binding through hydrophobic association. Overall, ZnCarbi demonstrates enhanced anticancer properties compared to carbidopa alone, highlighting its potential as an anticancer and antimetastatic compound.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"90 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875666","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

Antimicrobial Potential of a Formazanate-Based Mercury(II) Complex: In Vitro- and In Silico-Based Insights 基于甲酸盐的汞（II）配合物的抗菌潜力：体外和硅基的见解。

IF 3 4区化学

ChemPlusChem Pub Date : 2024-12-23 DOI: 10.1002/cplu.202400696

Sunita Birara, Vinay Kumar Yadav, Abinash Kumar Jena, Sudipta Bhattacharyya, Ramesh K. Metre

{"title":"Antimicrobial Potential of a Formazanate-Based Mercury(II) Complex: In Vitro- and In Silico-Based Insights","authors":"Sunita Birara, Vinay Kumar Yadav, Abinash Kumar Jena, Sudipta Bhattacharyya, Ramesh K. Metre","doi":"10.1002/cplu.202400696","DOIUrl":"10.1002/cplu.202400696","url":null,"abstract":"Herein, we present a distorted square pyramidal mercury complex, [HgII(L)Cl] (1), based on a quinoline-substituted formazan ligand LH[3-Cyano-1,5-(quinolin-8-yl)formazan], which was evaluated for its anti-bacterial activity in vitro. Complex 1 was prepared by refluxing 3-Cyano-1,5-(quinolin-8-yl)formazan ligand and mercury chloride(II) in equimolar quantity and was characterized utilizing a range of analytical methods, including single crystal X-ray diffraction (SCXRD) technique. The crystal packing in complex 1 has been elucidated using supramolecular investigations, which have shown the presence of fascinating Hg−Cl⋅⋅⋅Hg intermolecular spodium bonds of the order 3.348 Å. The antimicrobial activity of the formazanate-based mercury(II) complex (1) was assessed against Gram-positive (Staphylococcus aureus and Bacillus subtilis) and Gram-negative (Escherichia coli and Pseudomonas aeruginosa) bacterial pathogens. In addition, the plausible therapeutic target of the formazanate-based mercury(II) complex was determined through in silico pharmacophore-guided rational drug designing approach. Based on the in silico results, a conceivable molecular mechanism of the observed bactericidal action of the newly synthesized [HgII(L)Cl] complex (1) has also been suggested.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"90 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875577","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

Alkyl 4-Alkoxyvalerates: Characterization and Application in Pd-Catalyzed Aminocarbonylation of Iodo(hetero)arene Compounds 4-烷氧戊酸烷基酯：表征及其在pd催化碘（杂）芳烃化合物氨基羰基化中的应用。

IF 3 4区化学

ChemPlusChem Pub Date : 2024-12-23 DOI: 10.1002/cplu.202400713

Nuray Uzunlu Ince, Dr. Péter Pongrácz, Prof. Dr. László Kollár, Dr. András Szilágyi, Dr. Attila Takács, Prof. Dr. László T. Mika

{"title":"Alkyl 4-Alkoxyvalerates: Characterization and Application in Pd-Catalyzed Aminocarbonylation of Iodo(hetero)arene Compounds","authors":"Nuray Uzunlu Ince, Dr. Péter Pongrácz, Prof. Dr. László Kollár, Dr. András Szilágyi, Dr. Attila Takács, Prof. Dr. László T. Mika","doi":"10.1002/cplu.202400713","DOIUrl":"10.1002/cplu.202400713","url":null,"abstract":"The palladium-catalyzed aminocarbonylation is one of the most effective methods for the synthesis of carboxamides having great importance. Replacing fossil-based organic solvents in this routinely used catalytic protocol with biomass-derived media is crucial for developing environmentally safe alternatives and towards sustainability considerations. In this study, the open-chain derivatives of bio-originated substance γ-valerolactone i. e. alkyl 4-alkoxyvalerates (alkyl: methyl, ethyl, and propyl) were characterized and tested as potential polar aprotic alternatives of fossil-based common N,N-dimethylformamide (DMF) in aminocarbonylation protocols. First, the temperature-dependent physicochemical properties of alkyl 4-alkoxyvalerates were determined. Based on their characteristics, methyl 4-methoxyvalerate (Me-4MeOV) was selected and introduced in the Pd-catalyzed aminocarbonylation of iodobenzene and morpholine as a model reaction, and an optimization study was carried out. Using the optimized conditions, several substituted iodobenzenes, as well as heteroaryl iodides, were successfully applied resulting in the target carboxamides selectively in short reaction time. Furthermore, the aminocarbonylation of iodobenzene in the presence of various amines was also accomplished extending the scope of the carboxamides produced in this alternative medium. Considering our observations, such as high conversions (up to 95 %) in short reaction time and selective amide formation, it has been justified that Me-4MeOV could be an appropriate alternative medium in aminocarbonylation protocols.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"90 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142880929","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

Continuous Flow Synthesis and Applications of Metal-Organic Frameworks: Advances and Innovations 金属-有机骨架的连续流合成与应用：进展与创新。

IF 3 4区化学

ChemPlusChem Pub Date : 2024-12-23 DOI: 10.1002/cplu.202400634

Rashed Rahman, Fazal Malik, Zaw Min Hein, Junrong Huang, Hengzhi You, Yuxiang Zhu

{"title":"Continuous Flow Synthesis and Applications of Metal-Organic Frameworks: Advances and Innovations","authors":"Rashed Rahman, Fazal Malik, Zaw Min Hein, Junrong Huang, Hengzhi You, Yuxiang Zhu","doi":"10.1002/cplu.202400634","DOIUrl":"10.1002/cplu.202400634","url":null,"abstract":"Metal-Organic Frameworks (MOFs) are an emerging class of solid-state materials comprising inorganic elements and organic molecules. These hybrid materials are widely recognized for their diverse properties, rendering them indispensable in the field of organic synthesis, material science and the pharmaceutical industry. Although the traditional batch methods for MOFs synthesis are well-developed, they often struggle with reproducibility, scalability and environmental issues. However, the development of continuous flow techniques has emerged as a promising alternative, offering more efficient mass and heat transfer, precise reaction control, greater potential for automation, improved safety, and reduced environmental impact. This review primarily focuses on advanced continuous flow synthesis of MOFs incorporating techniques such as air flow, spray drying, microwave, micro-droplets, supercritical carbon dioxide, and ultrasound. Additionally, the recent advancements in applying MOFs as heterogeneous catalysts for various organic transformations under continuous flow conditions are discussed, categorized by the type of bond formation, including C−H bond formation (hydrogen reduction), C−C bond formation, and C−O bond formation.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"90 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142880932","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

Foxing of Watercolor Paper and Environmental Control as Preventive Actions 水彩纸的复色与环境控制作为预防措施。

IF 3 4区化学

ChemPlusChem Pub Date : 2024-12-23 DOI: 10.1002/cplu.202400647

Woon Lam Ng, Huanlong Hu, Zeyan Zhuang

{"title":"Foxing of Watercolor Paper and Environmental Control as Preventive Actions","authors":"Woon Lam Ng, Huanlong Hu, Zeyan Zhuang","doi":"10.1002/cplu.202400647","DOIUrl":"10.1002/cplu.202400647","url":null,"abstract":"In Singapore's hot and humid climate, watercolor papers are particularly prone to a paper oxidation issue known as foxing, which refers to the discoloration forming yellowish-brown stains on paper, changing the visual outcome of the watercolor artworks. This research investigates two most popular types of watercolor paper, made from 100 % cotton and cotton-wood-pulp mixture. Foxing was generally categorized into two types: biotic and abiotic foxing caused by fungi activities and the presence of metallic contaminants catalytic fungi growth. However, recent hypotheses further relate it to heterogeneous cellulose structures. Watercolor paper is typically produced in a well-controlled environment, which should theoretically reduce the occurrence of foxing, catalyzed by metallic contaminants. The research involved a comprehensive analysis of aged samples, from old watercolors, dating back to the 1990s and fresh watercolor paper samples. focusing on understanding the origin and causes of watercolor paper foxing based on cellulose content & structures. By comparing 100 % cotton and cotton wood-pulp blended watercolor paper, the susceptivity of foxing was hinted to be related to cellulose packing density. These findings will support further research in developing strategies for the conservation and storage of watercolor artworks.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"90 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875692","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