ChemPlusChem最新文献_第3页

Effect of UV Light Exposure Duration on the Removal of Exfoliation Agent Residues in Two-Dimensional Perovskite Nanosheets: An AFM Study.

IF 3 4区化学

ChemPlusChem Pub Date : 2025-01-29 DOI: 10.1002/cplu.202400678

Fatma Pinar Gordesli-Duatepe, Begümnur Küçükcan, Özge Sağlam

{"title":"Effect of UV Light Exposure Duration on the Removal of Exfoliation Agent Residues in Two-Dimensional Perovskite Nanosheets: An AFM Study.","authors":"Fatma Pinar Gordesli-Duatepe, Begümnur Küçükcan, Özge Sağlam","doi":"10.1002/cplu.202400678","DOIUrl":"10.1002/cplu.202400678","url":null,"abstract":"Accurate determination of dielectric properties and surface characteristics of two-dimensional (2D) perovskite nanosheets, produced by chemical exfoliation of layered perovskites, is often hindered by exfoliation agent residues such as tetrabutylammonium (TBA). This study investigated the effect of ultraviolet (UV) light exposure duration on the removal of TBA residues from 2D Ca2NaNb4O13 - nanosheets deposited on silicon substrates via Langmuir-Blodgett method using atomic force microscopy (AFM). Nanoscale adhesion forces between silicon AFM tips and nanofilms exposed to UV light for 3, 12, 18, and 24 hours were measured. Nanofilms exposed to UV for 12 hours showed significant heterogeneity in adhesion forces compared to control nanofilms not exposed to UV. This heterogeneity improved after 18 hours and reached maximum homogeneity at 24 hours. A noticeable decrease in adhesion forces indicated a reduction in TBA residues after 18 hours, with further reduction observed at 24 hours. The most probable adhesion forces for control nanofilms and those exposed to UV for 3 and 12 hours were 1.6-fold and 2.0-fold higher, respectively, compared to nanofilms exposed to UV for 18 and 24 hours. Similarly, surface roughness peaked at 12 hours and then decreased with longer exposure, resulting in a smoother surface at 24 hours.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202400678"},"PeriodicalIF":3.0,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143057604","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

Solvent Effect on Antimicrobial Hydrophilic Xerogel Coating of Medicinal Leathers in Simulated Industrial Finishing Process.

IF 3 4区化学

ChemPlusChem Pub Date : 2025-01-29 DOI: 10.1002/cplu.202400648

Theofanis Bompotis, Eirini Karastergiou, Konstantinos Giannakopoulos, Evangelos P Favvas, Marina Arvanitopoulou, Konstantinos Arvanitopoulos, Labros Arvanitopoulos, Georgia Kytherioti, Michail Vardavoulias, Dimitrios A Giannakoudakis, Laura Castellsagués, Sara Maria Soto González, Michael Arkas

{"title":"Solvent Effect on Antimicrobial Hydrophilic Xerogel Coating of Medicinal Leathers in Simulated Industrial Finishing Process.","authors":"Theofanis Bompotis, Eirini Karastergiou, Konstantinos Giannakopoulos, Evangelos P Favvas, Marina Arvanitopoulou, Konstantinos Arvanitopoulos, Labros Arvanitopoulos, Georgia Kytherioti, Michail Vardavoulias, Dimitrios A Giannakoudakis, Laura Castellsagués, Sara Maria Soto González, Michael Arkas","doi":"10.1002/cplu.202400648","DOIUrl":"10.1002/cplu.202400648","url":null,"abstract":"The hydrophilic character and the protection against pathogen proliferation are the most pivotal characteristics of leathers intended for medical purposes. To achieve these goals, dispersions of TiO2 particles incorporating three different formulations of biomimetically synthesized silica xerogels were tested. Emphasis has been given to the role of single and dual solvents employed. Microbiocide capability was induced by benzalkonium chloride along with silver nanoparticles. Particular emphasis should be given to hyperbranched poly(ethylene imine) multifunctional roles. Spontaneous mineralization of silver ions is realized in the dendritic cavities. The same polymer acts as a matrix that interacts with the hydrogen bonding network of orthosilicic acid directing and facilitating gel formation. Furthermore, it contributes to both hydrophilicity and antimicrobial properties. Gel formation and subsequent drying occur in the pores of the impregnated TiO2 substrate. The resistance of the leathers to fungal and bacterial infections and biofilm formation was assessed against Klebsiella Pneumoniae, Escherichia coli, Pseudomonas aeruginosa, Enterococcus faecalis, Staphylococcus aureus, and Candida albicans. The affinity to water was proved by the contact angle method. The proposed treatment is a prospective environmentally friendly replacement to the standard finishing process of medical leathers.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202400648"},"PeriodicalIF":3.0,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143062838","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

Exploring Supramolecular Frustrated Lewis Pairs.

IF 3 4区化学

ChemPlusChem Pub Date : 2025-01-29 DOI: 10.1002/cplu.202400725

Paige R Hawkins, Chris S Hawes, Peter D Matthews

引用次数: 0

Half-Sandwich Organometallic Ir(III) and Ru(II) Compounds and their Interactions with Biomolecules.

IF 3 4区化学

ChemPlusChem Pub Date : 2025-01-29 DOI: 10.1002/cplu.202400621

Sandra Kozieł, Daria Wojtala, Magdalena Szmitka, Monika Lesiów, Aleksandra Ziółkowska, Jacek Sawka, Edgar Del Carpio, Debbie C Crans, Urszula K Komarnicka

引用次数: 0

PtAu-Carbon Nanotube/Glassy Carbon Electrode Composite Based Electrochemical Sensor for High-Precision Detection of Tetracycline.

IF 3 4区化学

ChemPlusChem Pub Date : 2025-01-27 DOI: 10.1002/cplu.202400525

Ying Wang, Tianpeng Liu, Yanghai Feng, Lei Zhu, Jiping Jia, Hui Zhang, Yukou Du

引用次数: 0

Open Rotaxane Surgery: What Molecular Editing Can Offer to Supramolecular Chemistry?

IF 3 4区化学

ChemPlusChem Pub Date : 2025-01-27 DOI: 10.1002/cplu.202500038

Jędrzej P Perdek, Rafał A Grzelczak, Bartosz Szyszko

引用次数: 0

Computational Insights into the Mechanism of Lewis Acid-Catalyzed Alkene-Aldehyde Coupling.

IF 3 4区化学

ChemPlusChem Pub Date : 2025-01-24 DOI: 10.1002/cplu.202400751

Ricardo Meyrelles, Bogdan R Brutiu, Boris Maryasin

引用次数: 0

Confined Growth by Self-Combustion of a Cu-Based Nanophase into Mesostructured Acid Supports for DME Production from CO₂.

IF 3 4区化学

ChemPlusChem Pub Date : 2025-01-23 DOI: 10.1002/cplu.202400760

Fausto Secci, Valentina Mameli, Marco Sanna Angotzi, Luciano Atzori, Lorenza Piroddi, Nicola Pinna, Mauro Mureddu, Carla Cannas

{"title":"Confined Growth by Self-Combustion of a Cu-Based Nanophase into Mesostructured Acid Supports for DME Production from CO2.","authors":"Fausto Secci, Valentina Mameli, Marco Sanna Angotzi, Luciano Atzori, Lorenza Piroddi, Nicola Pinna, Mauro Mureddu, Carla Cannas","doi":"10.1002/cplu.202400760","DOIUrl":"10.1002/cplu.202400760","url":null,"abstract":"This work deals with the design of nanocomposite hydrogenation-dehydration bifunctional catalysts for the one-pot conversion of CO2 to dimethyl ether (DME), focusing on obtaining a high and homogeneous dispersion of a Cu-based CO2 hydrogenation phase into the pores of mesostructured supports. Particularly, three aluminosilicate mesostructured acid catalysts with catalytic activity towards methanol dehydration and featuring different porous structures (Al-MCM-41, Al-SBA-15, Al-SBA-16) were synthesized and used as supports to host a CuO/ZnO/ZrO2 (CZZ) CO2 hydrogenation catalyst for methanol synthesis. The use of a mesostructured support allows to maximize the exposed surface of the CO2 reduction function by nanostructuring it through its confinement within the mesochannels, thus obtaining nanocomposite bifunctional catalysts with an ultra-small hydrogenation nanophase. The nanocomposites were obtained using an impregnation strategy combined with a self-combustion reaction, allowing to incorporate the CO2 reduction phase inside the mesopores. In all cases, the characterization shows that the hydrogenation phase species are highly and homogeneously dispersed into the supports as either small nanoparticles or as a nanolayer. The as-obtained nanocomposites were tested for their catalytic activity and the results discussed taking into account the structural, textural, and acidic properties of the supports and nanocomposites.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202400760"},"PeriodicalIF":3.0,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143031575","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

Combining Ionic Groups with Methallyl Dichloride Coupling Delivers New Pathways to Ionic/Non-Ionic Hybrid Detergents.

IF 3 4区化学

ChemPlusChem Pub Date : 2025-01-23 DOI: 10.1002/cplu.202400753

Jan-Simon Behnke, Naomi Zink, Carl J M Schoelzel, Inga Beimdick, Leonhard Hagen Urner, Virginia Wycisk

{"title":"Combining Ionic Groups with Methallyl Dichloride Coupling Delivers New Pathways to Ionic/Non-Ionic Hybrid Detergents.","authors":"Jan-Simon Behnke, Naomi Zink, Carl J M Schoelzel, Inga Beimdick, Leonhard Hagen Urner, Virginia Wycisk","doi":"10.1002/cplu.202400753","DOIUrl":"10.1002/cplu.202400753","url":null,"abstract":"Strategies for combining ionic and non-ionic functional groups are important for altering detergent properties and exploring new chemical spaces within the detergentome. Previous synthesis protocols for ionic/non-ionic hybrid detergents require asymmetric detergent precursors with independently addressable hydroxyl groups that can be decorated with charged groups. However, preparation of ionic/non-ionic headgroups can be tedious in terms of required synthesis steps and resource consumption. To address this challenge, here we explore if we can fuse ionic and non-ionic groups directly with methallyl dichloride in the first step of detergent synthesis. While this delivers a simplified synthesis strategy for ionic/non-ionic headgroups, we find functional groups for which the modification of asymmetric detergent precursors is still the only viable option to obtain related ionic/non-ionic hybrid detergents. Because previously established debenzylation conditions limit overall yields for asymmetric detergent precursors, here we explore optimization strategies, including silyl protecting groups, ozonolysis-hydrolysis, and hydrogenolysis. In summary, we establish a new synthesis route to ionic/non-ionic hybrid detergents, deliver an optimized debenzylation protocol and obtain building blocks for bridged detergent architectures. Our findings facilitate the modular synthesis of hybrid detergents and expand the chemical space of detergents.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202400753"},"PeriodicalIF":3.0,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143021333","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

The Catalytic Activity of Polyaniline In Hydrogenation Reactions with Molecular Hydrogen. 聚苯胺在分子氢加氢反应中的催化活性。

IF 3 4区化学

ChemPlusChem Pub Date : 2025-01-17 DOI: 10.1002/cplu.202400674

Igor B Bychko, Yaroslav I Kurys, Olena O Pariiska, Olga Z Didenko, Denys O Mazur, Peter E Strizhak, Vyacheslav G Koshechko, Vitaly D Pohodenko

引用次数: 0