Chemistry methods : new approaches to solving problems in chemistry最新文献

Cover Picture: Sodium-Potassium Competition as a Tool for Chemoselective Cucurbit[n]uril-Xenon Host–Guest Complexation in Imaging Applications (Chem. Methods 3/2025)

IF 6.1

Chemistry methods : new approaches to solving problems in chemistry Pub Date : 2025-03-10 DOI: 10.1002/cmtd.202580301

Dr. Katarzyna Dziubińska-Kühn, Dr. Guzel Musabirova, Sophie Effertz, Prof. Jörg Matysik, Prof. Renaud Blaise Jolivet

{"title":"Cover Picture: Sodium-Potassium Competition as a Tool for Chemoselective Cucurbit[n]uril-Xenon Host–Guest Complexation in Imaging Applications (Chem. Methods 3/2025)","authors":"Dr. Katarzyna Dziubińska-Kühn, Dr. Guzel Musabirova, Sophie Effertz, Prof. Jörg Matysik, Prof. Renaud Blaise Jolivet","doi":"10.1002/cmtd.202580301","DOIUrl":"https://doi.org/10.1002/cmtd.202580301","url":null,"abstract":"The Front Cover illustrates that by paw-holding, wild sea otters ensure they stay together and do not drift apart in their sleep. This comes from a concept of no herd member being left behind. If the experimental conditions are met, the same phenomenon is observed in the study by Renaud Blaise Jolivet and co-workers, where K+ ions and cage molecules interact in the solution, forming species with significantly higher Xe encapsulation rates. The preferential caging of Xe by CB[6]-alkali pairs is seen as an analogy to the paw-holding-based social gathering of sea otters. For more details, see the Research Article by Renaud Blaise Jolivet and co-workers (DOI: 10.1002/cmtd.202400033).\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>\u0000 ","PeriodicalId":72562,"journal":{"name":"Chemistry methods : new approaches to solving problems in chemistry","volume":"5 3","pages":""},"PeriodicalIF":6.1,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cmtd.202580301","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Cover Picture: All-in-One Portable Electrochemical Strips for Drug Release, Delivery and Monitoring (Chem. Methods 2/2025)

IF 6.1

Chemistry methods : new approaches to solving problems in chemistry Pub Date : 2025-02-10 DOI: 10.1002/cmtd.202580201

Sima Singh, Mohga Khater, Ada Raucci, Ovidio Catanzano, Fabiana Quaglia, Stefano Cinti

引用次数: 0

Physicochemical vs Electrochemical Technologies for Metal Recovery – Main Insights, Comparison, Complementarity and Challenges

IF 6.1

Chemistry methods : new approaches to solving problems in chemistry Pub Date : 2025-02-03 DOI: 10.1002/cmtd.202400046

Stefanos Mourdikoudis, Xochitl Dominguez-Benetton

{"title":"Physicochemical vs Electrochemical Technologies for Metal Recovery – Main Insights, Comparison, Complementarity and Challenges","authors":"Stefanos Mourdikoudis, Xochitl Dominguez-Benetton","doi":"10.1002/cmtd.202400046","DOIUrl":"https://doi.org/10.1002/cmtd.202400046","url":null,"abstract":"The quest toward the development of new, more eco-friendly removal/recycling/recovery methods for a range of valuable elements is intense nowadays. In this Review we present and discuss in a critical way the best available physicochemical processes versus modern electrochemical approaches for metal recovery of elements which form part of spent catalysts or other sources such as wastewater, mining waste and spent batteries. These techniques include coagulation/flocculation, precipitation, electrocoagulation/electroflotation, membrane electrolysis, electrodeposition/electrowinning and gas-diffusion electrocrystallization (GDEx). Several key performance indicators (KPIs) are utilized to facilitate the critical analysis of the different recovery methods. Such indicators have to do, for example, with the efficiency, the cost, the complexity, and the environmental friendliness of the methods used. In some cases, the recovered metals can be further used for specific applications, including the fabrication of electrocatalysts for reactions of interest. When possible, the more novel electrified technologies are benchmarked versus the state-of-the art approaches. This manuscript helps to summarize all types of approaches in a comparative manner. When the targeted metal cannot be recovered by any of the technologies explored, its removal can also be considered as satisfactory in some extent, especially if the element under discussion poses a risk of toxicity for the environment or for human health. Recovery technologies are sometimes combined for an optimum effect, exploiting the advantages of each approach and mitigating their drawbacks. Our review provides also some examples for ‘removal-only’ possibilities of the studied methods, though its primary focus is the metal recovery aiming for metal reuse in the best possible scenarios.","PeriodicalId":72562,"journal":{"name":"Chemistry methods : new approaches to solving problems in chemistry","volume":"5 3","pages":""},"PeriodicalIF":6.1,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cmtd.202400046","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Sodium-Potassium Competition as a Tool for Chemoselective Cucurbit[n]uril-Xenon Host–Guest Complexation in Imaging Applications

IF 6.1

Chemistry methods : new approaches to solving problems in chemistry Pub Date : 2025-01-28 DOI: 10.1002/cmtd.202400033

Dr. Katarzyna Dziubińska-Kühn, Dr. Guzel Musabirova, Sophie Effertz, Prof. Jörg Matysik, Prof. Renaud Blaise Jolivet

{"title":"Sodium-Potassium Competition as a Tool for Chemoselective Cucurbit[n]uril-Xenon Host–Guest Complexation in Imaging Applications","authors":"Dr. Katarzyna Dziubińska-Kühn, Dr. Guzel Musabirova, Sophie Effertz, Prof. Jörg Matysik, Prof. Renaud Blaise Jolivet","doi":"10.1002/cmtd.202400033","DOIUrl":"https://doi.org/10.1002/cmtd.202400033","url":null,"abstract":"Cucurbit[n]urils (CB[n]) are a family of macromolecules, capable of encapsulating neutral or charged species. Due to their low toxicity, good solubility, and transport properties resulting from the structure forming the cage, they have gained popularity in imaging-oriented studies. In vitro studies have shown that one of the guests compatible with the CB[n] hosts are Xe atoms, leading to high-resolution 129Xe magnetic resonance signals in pulmonary medical imaging. This prompts the question of whether similar results could be achieved in vivo in other tissues and body fluids. Here, we demonstrate how the varying efficacy of Xe encapsulation by a CB[6] cage is governed by the Na+ : K+ molecular ratio in simulated body fluids. Moving from a high concentration of Na+ to an excess of K+ in the solution significantly increases Xe encapsulation by the macromolecules. This finding indicates chemoselectivity of cucurbit[6]uril host-guest interactions. Since Na+ and K+ are the most abundant ions in human body fluids, our results provide a theoretical foundation for future liquid-state in vivo Xe imaging in medical applications.","PeriodicalId":72562,"journal":{"name":"Chemistry methods : new approaches to solving problems in chemistry","volume":"5 3","pages":""},"PeriodicalIF":6.1,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cmtd.202400033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143582060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Operando Luminescence Thermometry of a Solid Catalyst in a Reactor during a High-Temperature Chemical Process 高温化学过程中反应器中固体催化剂的操作发光测温仪

IF 6.1

Chemistry methods : new approaches to solving problems in chemistry Pub Date : 2025-01-21 DOI: 10.1002/cmtd.202400044

Daniël W. Groefsema, Dr. Freddy T. Rabouw, Michiel Boele, Dr. Alexander P. van Bavel, Prof. Dr. Bert M. Weckhuysen

{"title":"Operando Luminescence Thermometry of a Solid Catalyst in a Reactor during a High-Temperature Chemical Process","authors":"Daniël W. Groefsema, Dr. Freddy T. Rabouw, Michiel Boele, Dr. Alexander P. van Bavel, Prof. Dr. Bert M. Weckhuysen","doi":"10.1002/cmtd.202400044","DOIUrl":"https://doi.org/10.1002/cmtd.202400044","url":null,"abstract":"In most catalytic processes, thermal energy is released or consumed locally in a reactor due to the exothermicity or endothermicity of the chemical reactions. This causes the actual operating temperature of the catalyst material to deviate from the reactor temperature, which can lead to underperformance, reduced catalyst stability, or even thermal runaway. Conventional methods to measure the catalyst temperature, with a thermocouple in the reactor oven or in the catalyst bed, suffer from complications because of separation between the sensor and catalyst material, chemical activity of the thermocouple/coating material, added complexity of the setup, and disruption of the reactant flow and heat flow through the catalyst bed. Here, we show the possibilities and challenges of luminescence thermometry as an analytical technique for remote temperature monitoring of the local catalyst temperature in a strongly exothermic high-temperature reaction environment. We observe that the luminescence lifetime depends not only temperature, but also on oxygen concentration, which can introduce a significant systematic error of up to 40 °C in the recorded temperature. In the case of ratiometric luminescence thermometry, this error is strongly reduced to ~5 °C. We use the ratiometric technique to confirm its applicability in the exothermic oxidative coupling of methane (OCM) process at high reaction temperatures, showing an exothermic increase in the local catalyst temperature of up to 100 °C, relative to the constant reactor temperature under inert conditions.","PeriodicalId":72562,"journal":{"name":"Chemistry methods : new approaches to solving problems in chemistry","volume":"5 3","pages":""},"PeriodicalIF":6.1,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cmtd.202400044","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143582096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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All-in-One Portable Electrochemical Strips for Drug Release, Delivery and Monitoring

IF 6.1

Chemistry methods : new approaches to solving problems in chemistry Pub Date : 2025-01-17 DOI: 10.1002/cmtd.202400079

Sima Singh, Mohga Khater, Ada Raucci, Ovidio Catanzano, Fabiana Quaglia, Stefano Cinti

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Cover Picture: Quantifying the Site Heterogeneities of Non-Uniform Catalysts Using QuantEXAFS (Chem. Methods 1/2025)

IF 6.1

Chemistry methods : new approaches to solving problems in chemistry Pub Date : 2025-01-10 DOI: 10.1002/cmtd.202580101

Rachita Rana, Jiyun Hong, Adam S. Hoffman, Baraa Werghi, Simon R. Bare, Ambarish R. Kulkarni

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Albumin Folding Changes Affect the Microfluidic Interfacial Broadening Revealed by Surface Plasmon Resonance

IF 6.1

Chemistry methods : new approaches to solving problems in chemistry Pub Date : 2025-01-09 DOI: 10.1002/cmtd.202400034

Damiano Calcagno, Maria Luisa Perina, Alessia Distefano, Mariacristina Parravano, Antonino Licciardello, Nunzio Tuccitto, Giuseppe Grasso

{"title":"Albumin Folding Changes Affect the Microfluidic Interfacial Broadening Revealed by Surface Plasmon Resonance","authors":"Damiano Calcagno, Maria Luisa Perina, Alessia Distefano, Mariacristina Parravano, Antonino Licciardello, Nunzio Tuccitto, Giuseppe Grasso","doi":"10.1002/cmtd.202400034","DOIUrl":"https://doi.org/10.1002/cmtd.202400034","url":null,"abstract":"Understanding the conformation and diffusion behavior of proteins in biological fluids is crucial for advancements in conformational disease research. While several experimental techniques are available for probing protein conformations, they often come with limitations, such as the need for fluorophores or specific experimental conditions. Albumin, one of the most abundant proteins in the blood and used as a tear supplement in treating ocular surface disorders, plays a vital role as a transport protein, binding various ligands and facilitating their transport. However, the direct relationship between albumin conformation and diffusion coefficient (D) in water solutions remains unexplored. In this study, we describe a novel Surface Plasmon Resonance technique coupled with Stochastic Gillespie′s algorithm simulations to correlate albumin D values with its conformational states directly. Our findings demonstrate the feasibility of monitoring albumin conformational changes under different environmental conditions, as well as its degradation kinetics by trypsin, by analyzing its diffusion characteristics, presenting a promising avenue for advancing our understanding of conformational diseases.","PeriodicalId":72562,"journal":{"name":"Chemistry methods : new approaches to solving problems in chemistry","volume":"5 3","pages":""},"PeriodicalIF":6.1,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cmtd.202400034","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Raman Study of Intermediates Formed During the Electrochemical N-Nitrosation of Secondary Amines

IF 6.1

Chemistry methods : new approaches to solving problems in chemistry Pub Date : 2025-01-05 DOI: 10.1002/cmtd.202400067

Scott Richardson, Dr. Rasool Babaahmadi, Dr. Lee E. Edwards, Rojan Ali, Prof. Dr. Rebecca L. Melen, Prof. Debdulal Roy, Prof. Dr. Thomas Wirth

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Automated One-Pot Library Synthesis with Aldehydes as Radical Precursors

IF 6.1

Chemistry methods : new approaches to solving problems in chemistry Pub Date : 2024-12-20 DOI: 10.1002/cmtd.202400029

Adrián Luguera Ruiz, Brenda Pijper, Maria Lourdes Linares, Santiago Cañellas, Stefano Protti, Maurizio Fagnoni, Jesús Alcázar

引用次数: 0