K2CO3-mediated annulation of 1,3-acetonedicarboxylates with 2-fluoro-1-nitroarenes: synthesis of indoles
Org. Biomol. Chem., 2024, Advance Article DOI: 10.1039/D4OB00488D, PaperMeng-Yang Chang, Chin-Huey Ho, Hsing-Yin Chen K2CO3-mediated one-pot reaction of 1,3-acetonedicarboxylates with 2 equivalents of substituted 2-fluoro-1-nitrobenzenes has been developed to synthesize various 2,3-dicarboxylate indolesvia a tandem annulation pathway. To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Organic and Biomolecular Chemistry)
Source: RSC - Organic and Biomolecular Chemistry - May 2, 2024 Category: Molecular Biology Authors: Meng-Yang Chang Source Type: research
Three-Component Cascade Reaction of 3-Ketonitriles, 2-Unsubstituted Imidazole N-oxides, and Aldehydes
Org. Biomol. Chem., 2024, Accepted Manuscript DOI: 10.1039/D4OB00353E, PaperEkaterina Sergeevna Uvarova , Anton Viktorovich Kutasevich, Egor S Lipatov, I. S. Pytskii, Oleg Raitman, Yuriy Selivantev, Vitaly Mityanov A three-component condensation of 2-unsubstituted imidazole N-oxides, 3-ketonitriles, and aldehydes is described. The reaction proceeds via sequential Knoevenagel condensation/Michael addition under mild, catalyst-free conditions with various substrates. Furthermore, the corresponding... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Organic and Biomolecular Chemistry)
Source: RSC - Organic and Biomolecular Chemistry - May 2, 2024 Category: Molecular Biology Authors: Ekaterina Sergeevna Uvarova Source Type: research
Pillararenes: A new frontier in antimicrobial therapy
Org. Biomol. Chem., 2024, Accepted Manuscript DOI: 10.1039/D4OB00396A, Review ArticleYanqing Jin, Yisu Liu, Jiang Zhu, Hui Liu Pillararenes have gained great interest of researchers in many fields due to their symmetric structure and facile functionalization. In the review, we summarize the recent progress of pillararenes as antimicrobial... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Organic and Biomolecular Chemistry)
Source: RSC - Organic and Biomolecular Chemistry - May 2, 2024 Category: Molecular Biology Authors: Yanqing Jin Source Type: research
Micelle-based fluorogenic sensing of trypsin: a sensitive method in pancreatic disease diagnosis
Org. Biomol. Chem., 2024, Accepted Manuscript DOI: 10.1039/D4OB00478G, CommunicationHyebin Song, Haemin Choi, Young-Sun Kim, Seoung Ho Lee Protamine-mediated micellar aggregates, featuring an AIE-based fluorescent sensor, facilitate efficient detection of trypsin activity. This method enables the detection of trypsin at exceptionally low concentrations (0.01 ~ 0.1 μg mL-1) in... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Organic and Biomolecular Chemistry)
Source: RSC - Organic and Biomolecular Chemistry - May 2, 2024 Category: Molecular Biology Authors: Hyebin Song Source Type: research
Self-Assembled Polyoxovanadate-Intercalated Layered Double Hydroxide Nanosheets Hybridized with Graphene Oxide for Extrinsic Supercapacitors
J. Mater. Chem. A, 2024, Accepted Manuscript DOI: 10.1039/D4TA00794H, PaperNavnath S. Padalkar, Deepak P. Dubal, Jong Pil Park Hybrid materials integrate unique organic and inorganic compounds to create innovative materials that harness the optimal characteristics of each component, enhancing the electrochemical performance. Herein, a novel lattice engineering strategy... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)
Source: RSC - J. Mater. Chem. latest articles - May 2, 2024 Category: Chemistry Authors: Navnath S. Padalkar Source Type: research
Self-assembled two-dimensional metal-organic framework membrane as nanofluidic osmotic power generator
J. Mater. Chem. A, 2024, Accepted Manuscript DOI: 10.1039/D4TA01350F, PaperYuyu Su, Jue Hou, Chen Zhao, Qi Han, Jian Hu, Huacheng Zhang Metal-organic framework (MOF) membranes with high ion selectivity and permeation rates have emerged as excellent platforms for high-performance osmotic energy harvesting. However, only a few MOFs have been successfully fabricated... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)
Source: RSC - J. Mater. Chem. latest articles - May 2, 2024 Category: Chemistry Authors: Yuyu Su Source Type: research
Donor-Acceptor Hetero[6]radialene-based Three-Dimensional Covalent Organic Frameworks for Organic Pollutant Adsorption, Photocatalytic Degradation, and Hydrogen Production Activity
J. Mater. Chem. A, 2024, Accepted Manuscript DOI: 10.1039/D3TA07691A, PaperJing Han Wang, Ahmed Eid, Ahmed Elewa, Ahmed F. M. El-Mahdy Covalent organic frameworks (COFs) are promising photocatalysts for treating organic pollutants and solar-to-hydrogen conversion, however, their suboptimal energy band structure and rapid charge recombination limit their photocatalytic performance. Herein, we... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)
Source: RSC - J. Mater. Chem. latest articles - May 2, 2024 Category: Chemistry Authors: Jing Han Wang Source Type: research
An iron metal –organic framework-based electrochemical sensor for identification of Bisphenol-A in groundwater samples
Analyst, 2024, Advance Article DOI: 10.1039/D4AN00499J, PaperMadappa C. Maridevaru, Aashutosh Dube, Reshma Kaimal, Abdullah Al Souwaileh, Sathananthan Kannadasan, Sambandam Anandan Fe-BTC MOF/GCE exhibits substantial electrochemical sensing performance for Bisphenol-A identification with an enhanced restoration rate and exceptional precision for interference ions. To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Analyst latest articles)
Source: RSC - Analyst latest articles - May 2, 2024 Category: Chemistry Authors: Madappa C. Maridevaru Source Type: research
Analysis of Salt Stress on Soil Microbial Community Composition and Its Correlation with Active Components in the Rhizosphere of Acanthopanax senticosus
In conclusion, different types and concentrations of salts had different effects on Acanthopanax senticosus, and the active components of Acanthopanax senticosus were regulated by rhizosphere soil ecological factors.PMID:38695903 | DOI:10.1007/s00284-024-03687-9 (Source: Current Microbiology)
Source: Current Microbiology - May 2, 2024 Category: Microbiology Authors: Wenhui Yuan Shouyu Wang Jingru Liang Jiajie Shi Yang Zhang Changhong Ding Source Type: research
Controlling Chirogenic Effects in Porphyrin Based Supramolecular Systems: Theoretical Analysis Versus Experimental Observations
Chemphyschem. 2024 May 1:e202400104. doi: 10.1002/cphc.202400104. Online ahead of print.ABSTRACTElectronic circular dichroism (ECD) spectroscopy is a widely employed method for studying chiral analysis, requiring the presence of a chromophore close to a chiral centre. Porphyrinoids are found to be one of the best chromophoric systems serving for this purpose and enabling the application of ECD spectroscopy for chirality determination across diverse classes of organic compounds. Consequently, it is crucial to understand the induction mechanisms of ECD in the porphyrin-based complexes. The present study explores systematical...
Source: Chemphyschem - May 2, 2024 Category: Chemistry Authors: Irina Osadchuk Hanna-Eliisa Luts Aleksandra Zahharova Toomas Tamm Victor Borovkov Source Type: research
Changes in life history parameters and expression of key genes of Brachionus plicatilis exposed to a combination of organic and inorganic ultraviolet filters
This study aimed to assess the comprehensive effects of organic ultraviolet filters, specifically 2-ethylhexyl-4-methoxycinnamate (EHMC), and inorganic ultraviolet filters, namely, titanium dioxide nanoparticles (TiO2 NPs), on the rotifer Brachionus plicatilis. We exposed B. plicatilis to multiple combinations of different concentrations of EHMC and TiO2 NPs to observe changes in life history parameters and the expression of genes related to reproduction and antioxidant responses. Our findings indicated that increased EHMC concentrations significantly delayed the age at first reproduction, reduced the total offspring, and ...
Source: Chemosphere - May 2, 2024 Category: Chemistry Authors: Qingqing Yu Gongyuan Wang Zhihao Shao Yunfei Sun Zhou Yang Source Type: research
Combined effects of organic and mineral UV-filters on the lugworm Arenicola marina
Chemosphere. 2024 Apr 30:142184. doi: 10.1016/j.chemosphere.2024.142184. Online ahead of print.ABSTRACTPollution from personal care products, such as UV-filters like avobenzone and nano-zinc oxide (nZnO), poses a growing threat to marine ecosystems. To better understand this hazard, especially for lesser-studied sediment-dwelling marine organisms, we investigated the physiological impacts of simultaneous exposure to nZnO and avobenzone on the lugworm Arenicola marina. Lugworms were exposed to nZnO, avobenzone, or their combination for three weeks. We assessed pollutant-induced metabolic changes by measuring key metabolic i...
Source: Chemosphere - May 2, 2024 Category: Chemistry Authors: Torben Bruhns Candela S ánchez-Girón Barba Lilian K önig Stefan Timm Kathrin Fisch Inna M Sokolova Source Type: research
Optimizing bioelectromethanosynthesis of CO < sub > 2 < /sub > and membrane fouling mitigation in MECs via in-situ biogas recirculation
In this study, a new MEC bioreactor with biogas recirculation unit was designed in the cathode chamber to enhance secondary-dissolution of CO2 while mitigating the contaminant adhesion on membrane surface. Biogas recirculation improved CO2 re-dissolution, reduced concentration polarization, and facilitated the proton transmembrane diffusion. This resulted in a remarkable increase in the cathodic methane production rate from 0.4 mL/L·d to 8.5 mL/L·d. A robust syntrophic relationship between anodic organic-degrading bacteria (Firmicutes 5.29%, Bacteroidetes 25.90%, and Proteobacteria 6.08%) and cathodic methane-producing a...
Source: Chemosphere - May 2, 2024 Category: Chemistry Authors: Weijie Hu Shaojuan Zheng Jiayi Wang Xueqin Lu Yule Han Juan Wang Guangyin Zhen Source Type: research
Biochar-derived dissolved organic matter enhanced the release of residual ciprofloxacin from the soil solid phase
Chemosphere. 2024 Apr 30:142193. doi: 10.1016/j.chemosphere.2024.142193. Online ahead of print.ABSTRACTBiochar has been utilized to reduce ciprofloxacin (CIP) residues in soil. However, little is known about the effect of biochar-derived dissolved organic matter (DOM) on residual CIP transformation. Thus, we analyzed the residual soil CIP as influenced by biochar generated from rice straw (RS3 and RS6), pig manure (PM3 and PM6), and cockroach shell (CS3 and CS6) at 300 °C and 600 °C. The three-dimensional excitation-emission matrix (3D-EEM), parallel factor analysis (PARAFAC) and two-dimensional correlation spectral anal...
Source: Chemosphere - May 2, 2024 Category: Chemistry Authors: Guo Chen Jing Ma Gang Yang Chao Chen Lulu Long Linling Li Li Gong Min Xu Jun Wu Chun Song Jiejie Lyu Source Type: research
Experimental study for inorganic and organic profiling of toy makeup products: Estimating the potential threat to child health
In this study, the inorganic profile of 14 elements (Al, As, Ba, Cd, Co, Cr, Cu, Hg, Mn, Ni, Se, Sb, Pb, and Zn) in 63 toy makeup products was identified by inductively coupled plasma-mass spectrometry after microwave acid digestion method. Additionally, organic allergen fragrance was investigated by gas chromatography-mass spectrometry. The systemic exposure dosage (SED), margin of safety (MoS), lifetime cancer risk (LCR), hazard quotient (HQ), and hazard indices were used to assess the safety evaluation. Then, 57 out of 63 samples (90.48%) exceeded the limits at least for one toxic element with descending order Ni > C...
Source: Environmental Science and Pollution Research International - May 2, 2024 Category: Environmental Health Authors: Selda Mercan Mihriban Dilan Kilic Simge Zengin Murat Yayla Source Type: research
