ChemistryOpen最新文献_第8页

Time-of-Flight Secondary Ion Mass Spectrometry Revealing the Organocatalyst Distribution in Functionalized Silica Monoliths 飞行时间二次离子质谱法揭示功能化二氧化硅单片中的有机催化剂分布。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-09-27 DOI: 10.1002/open.202400199

Raoul D. Brand, Dr. Julia S. Schulze, Dr. Anja Henss, Prof. Bernd M. Smarsly

引用次数: 0

Impact of Ligand Design on an Iron NHC Epoxidation Catalyst 配体设计对铁 NHC 环氧化催化剂的影响

IF 2.3 4区化学

ChemistryOpen Pub Date : 2024-09-24 DOI: 10.1002/open.202400071

Tim P. Schlachta, Greta G. Zámbó, Michael J. Sauer, Isabelle Rüter, Fritz E. Kühn

引用次数: 0

Electro-Co-Polymerisation of Polypyrrole-Polyaniline Composites in Ionic Liquids for Metal-Free Hydrogen Evolution Electrodes 离子液体中的聚吡咯-聚苯胺复合材料的电-共聚合，用于无金属氢进化电极

IF 2.3 4区化学

ChemistryOpen Pub Date : 2024-09-24 DOI: 10.1002/open.202400215

Chhavi Sharma, Yuvraj Singh Negi, Kaushik Parida, Sara Dale

引用次数: 0

Potential Trypanocidal Activity of Glycerol Analogues 甘油类似物的潜在杀锥虫活性

IF 2.3 4区化学

ChemistryOpen Pub Date : 2024-09-12 DOI: 10.1002/open.202400094

R. A. Humann, T. K. Smith

{"title":"Potential Trypanocidal Activity of Glycerol Analogues","authors":"R. A. Humann, T. K. Smith","doi":"10.1002/open.202400094","DOIUrl":"https://doi.org/10.1002/open.202400094","url":null,"abstract":"Glycerol, a versatile and ubiquitous compound, plays a vital role in a plethora of metabolic pathways in both prokaryotes and eukarotyes. Relatively few glycerol analogues have previously been explored for their use as glycerol kinase inhibitors, in addition to their therapeutic potential, however their use as (pro)‐drugs in the context of parasitic diseases such as trypanosomiasis is unreported. The literature on glycerol metabolism and particular its synergic anti‐profilation behaviour with salicylhydroxamic acid (SHAM) in Trypanosoma brucei is extensive. However, utiliation of glycerol analogues has not been explored as possible superior combinatory compounds. This report describes the synthesis of various glycerol analogues and their subsequent biochemical pheotypic analysis for their effect on lipid metabolism and their possible synergic activity with SHAM on Trypanosoma brucei. The glycerol analogues caused morphological changes;, including detached flagella, cytokinesis defects and ‘big‐eye’ phenotype. All four compounds either matched or marginally increased the toxicity of SHAM when used in combination against Trypanosoma brucei. However, the compounds exhibited mostly an antagonistic relationship with SHAM rather than synergistic. This research highlights the potential of small molecule glycerol analogues for their combination use with SHAM for the treatment of parasitic disease, such as trypanosomiasis.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":"38 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142218881","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

Effect of Halide Anions on Electrochemical CO2 Reduction in Non-Aqueous Choline Solutions using Ag and Au Electrodes 卤化物阴离子对使用银电极和金电极在非水胆碱溶液中电化学还原 CO2 的影响

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-09-10 DOI: 10.1002/open.202400166

Hengameh Farahmandazad, Simone Asperti, Ruud Kortlever, Earl Goetheer, Wiebren de Jong

{"title":"Effect of Halide Anions on Electrochemical CO2 Reduction in Non-Aqueous Choline Solutions using Ag and Au Electrodes","authors":"Hengameh Farahmandazad, Simone Asperti, Ruud Kortlever, Earl Goetheer, Wiebren de Jong","doi":"10.1002/open.202400166","DOIUrl":"10.1002/open.202400166","url":null,"abstract":"In this study, the effect of halide anions on the selectivity of the CO2 reduction reaction to CO was investigated in choline-based ethylene glycol solutions containing different halides (ChCl : EG, ChBr : EG, ChI : EG). The CO2RR was studied using silver (Ag) and gold (Au) electrodes in a compact H-cell. Our findings reveal that chloride effectively suppresses the hydrogen evolution reaction and enhances the selectivity of carbon monoxide production on both Ag and Au electrodes, with relatively high selectivity values of 84 % and 62 %, respectively. Additionally, the effect of varying ethylene glycol content in the choline chloride-containing electrolyte (ChCl : EG 1 : X, X=2, 3, 4) was investigated to improve the current density during CO2RR on the Ag electrode. We observed that a mole ratio of 1 : 4 exhibited the highest current density with a comparable faradaic efficiency toward CO. Notably, an evident surface reconstruction process took place on the Ag surface in the presence of Cl− ions, whereas on Au, this phenomenon was less pronounced. Overall, this study provides new insights into anion-induced surface restructuring of Ag and Au electrodes during CO2RR, and its consequences on the reduction performance on such surfaces in non-aqueous electrolytes.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":"13 11","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/open.202400166","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142218882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Staged Photocatalytic Reactor in the Removal of Acetaminophen: Aspects of Adsorption and Photocatalysis 去除对乙酰氨基酚的分阶段光催化反应器：吸附和光催化的各个方面。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-09-09 DOI: 10.1002/open.202400052

Dr. Claudia Aguilar, Mayra García, Dr. Carlos Montalvo, Francisco Anguebes, Dr. Mohamed Abatal, Dr. Julia Cerón, Dr. Rosa Cerón, Dr. Sandra Figueroa, Dr. Alejandro Ruiz, Dr. Marcela Rangel

{"title":"The Staged Photocatalytic Reactor in the Removal of Acetaminophen: Aspects of Adsorption and Photocatalysis","authors":"Dr. Claudia Aguilar, Mayra García, Dr. Carlos Montalvo, Francisco Anguebes, Dr. Mohamed Abatal, Dr. Julia Cerón, Dr. Rosa Cerón, Dr. Sandra Figueroa, Dr. Alejandro Ruiz, Dr. Marcela Rangel","doi":"10.1002/open.202400052","DOIUrl":"10.1002/open.202400052","url":null,"abstract":"The efficiency of a staged photocatalytic reactor prototype was evaluated on a semi-pilot scale with the removal of acetaminophen, for which anatase particles were synthesized by Sol-Gel and impregnated on rectangular plates of clay. X-ray diffraction and Energy Dispersive X-ray Fluorescence patterns show that the final composite is made up of Al2O3 (14 %), SiO2 (41 %), CaO (3 %) TiO2 (34 %), and Fe2O3 (7 %). The impregnation method favors the dispersion of Anatase on the surface of the adsorbent. TiO2-Anatase/Clay, classified as a macro-porous solid with H3-type hysteresis loops by N2 physisorption. Adsorption processes are improved when using TiO2-Anatase/Clay compared to using TiO2-Anatase. The external mass transfer has a greater influence on the removal rate. The dimensionless parameters of the Biot number indicate there are no limitations due to the diffusive effect on the interior of the particle. The evaluation of the kinetic data under the Langmuir-Hinshelwood equation shows a decrease in efficiency as the initial concentration increases. The acetaminophen molecule shows destabilization in the structure of the aromatic ring with a visible decrease in the signals of this functional group evaluated by High-Performance Liquid Chromatography and Raman Spectroscopy.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":"13 10","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/open.202400052","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142153242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Advances in the Application of 2-Aminobenzothiazole to the Multicomponent Synthesis of Heterocycles 将 2-氨基苯并噻唑应用于多组分合成杂环的最新进展。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-09-09 DOI: 10.1002/open.202400185

Ramin Javahershenas, Jianlin Han, Mosstafa Kazemi, Peter J. Jervis

{"title":"Recent Advances in the Application of 2-Aminobenzothiazole to the Multicomponent Synthesis of Heterocycles","authors":"Ramin Javahershenas, Jianlin Han, Mosstafa Kazemi, Peter J. Jervis","doi":"10.1002/open.202400185","DOIUrl":"10.1002/open.202400185","url":null,"abstract":"Heterocycles are a vital class of compounds in numerous fields, including drug discovery, agriculture, and materials science. Efficient methods for the synthesis of heterocycles remain critical for meeting the demands of these industries. Recent advances in multicomponent reactions (MCRs) utilizing 2-aminobenzothiazole (ABT) have shown promising results for the formation of heterocycles. The versatility of 2-aminobenzothiazole in this context has enabled the rapid and efficient construction of diverse heterocyclic structures. Various synthetic methodologies and reactions involving 2-aminobenzothiazole are discussed, highlighting its importance as a valuable building block in the synthesis of complex heterocycles. The potential applications of these heterocycles in drug discovery and material science are also explored. Overall, this review provides a comprehensive overview of the current state of research in the field and offers insights into the future directions of this promising area of study. We highlight the potential of ABT as a versatile and sustainable starting material in heterocyclic synthesis via MCRs, with significant implications for the chemical industry.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":"13 11","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11564876/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142153240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Medicinal Perspective of 2,4-Thiazolidinediones Derivatives: An Insight into Recent Advancements 2,4-噻唑烷二酮类衍生物的药用前景：洞察最新进展。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-09-09 DOI: 10.1002/open.202400147

Sneha Gupta, Sumeet Jha, Supriya Rani, Pinky Arora, Dr. Shubham Kumar

{"title":"Medicinal Perspective of 2,4-Thiazolidinediones Derivatives: An Insight into Recent Advancements","authors":"Sneha Gupta, Sumeet Jha, Supriya Rani, Pinky Arora, Dr. Shubham Kumar","doi":"10.1002/open.202400147","DOIUrl":"10.1002/open.202400147","url":null,"abstract":"2,4-Thiazolidinedione derivatives represent nitrogen-containing heterocyclic compounds utilized in type 2 diabetes mellitus management. Recent advances in medicinal chemistry have unveiled diverse therapeutic potentials and structural modifications of these derivatives. This review delves into novel TZD derivatives, encompassing their synthesis, structure-activity relationships, and pharmacokinetic profiles. Various therapeutic potentials of TZDs are explored, including anticancer, antimicrobial, anti-inflammatory, antioxidant, anticonvulsant, antihyperlipidemic, anticorrosive, and antitubercular activities. Additionally, it addresses mitigating side effects associated with marketed TZD derivatives such as weight gain, oedema, fractures, and congestive heart failure in type 2 diabetes mellitus management. The review elaborates on in vivo, in vitro, and ex vivo studies supporting different biological activities, alongside predicting ADME and drug-likeness properties of TZDs. Computational studies are also integrated to elucidate binding modes and affinities of novel TZD derivatives. Furthermore, a plethora of novel TZD derivatives with varied and enhanced therapeutic potentials are presented, warranting further evaluation of their biological activities.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":"13 11","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11564877/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142153239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Front Cover: Microwave Effect in Hydrolysis of Levoglucosan with a Solid Acid Catalyst for Pyrolysis-Based Cellulose Saccharification (ChemistryOpen 9/2024) 封面：基于热解的纤维素糖化中固体酸催化剂在左旋葡聚糖水解过程中的微波效应（ChemistryOpen 9/2024）

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-09-09 DOI: 10.1002/open.202480901

Dr. Takashi Nomura, Prof. Eiji Minami, Prof. Haruo Kawamoto

引用次数: 0

Quantitative Spermidine Detection in Cosmetics using an Organic Transistor-Based Chemical Sensor 利用基于有机晶体管的化学传感器定量检测化妆品中的精胺。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-09-05 DOI: 10.1002/open.202400098

Dr. Yui Sasaki, Kohei Ohshiro, Miyuki Kato, Hikaru Tanaka, Akari Yamagami, Dr. Kazutake Hagiya, Prof. Dr. Tsuyoshi Minami

{"title":"Quantitative Spermidine Detection in Cosmetics using an Organic Transistor-Based Chemical Sensor","authors":"Dr. Yui Sasaki, Kohei Ohshiro, Miyuki Kato, Hikaru Tanaka, Akari Yamagami, Dr. Kazutake Hagiya, Prof. Dr. Tsuyoshi Minami","doi":"10.1002/open.202400098","DOIUrl":"10.1002/open.202400098","url":null,"abstract":"Spermidine is an essential biomarker related to antiaging. Although the detection of spermidine levels is in high demand in life science fields, easy-to-use analytical tools without sample purification have not yet been fully established. Herein, we propose an organic field-effect transistor-based chemical sensor for quantifying the spermidine concentration in commercial cosmetics. An extended-gate structure was employed for organic field-effect transistor (OFET)-based chemical sensing in aqueous media. A coordination-bond-based sensing system was introduced into the OFET device to visualize the spermidine detection information through changes in the transistor characteristics. The extended-gate-type OFET has shown quantitative responses to spermidine, which indicates sufficient detectability (i. e., the limit of detection for spermidine: 2.3 μM) considering actual concentrations in cosmetics. The applicability of the OFET-based chemical sensor for cosmetic analysis was validated by instrumental analysis using high-performance liquid chromatography. The estimated recovery rates for spermidine in cosmetic ingredient products (108–111 %) suggest the feasibility of cosmetic analysis based on the OFET-based chemical sensor.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":"13 10","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/open.202400098","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142131955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0