Multienzyme ‐Like Polyoxometalate‐Based Single‐Atom Enzymes for Cancer‐Specific Therapy Through Acid‐Triggered Nontoxicity‐to‐Toxicity Transition
This study provides a detailed investigation on the acid-triggered releasing of active units and the electron transfer in multienzyme-mimic-like therapy, further enlarging the application of POMs from catalytical engineering into cancer therapy. (Source: Small)
Source: Small - April 22, 2024 Category: Nanotechnology Authors: Xiyang Ge,
Yiyan Yin,
Xiaoni Wang,
Yixuan Gao,
Xiaowen Guan,
Jianghui Sun,
Jin Ouyang,
Na Na Tags: Research Article Source Type: research
Temporal dynamics of lignin degradation in Quercus acutissima sawdust during Ganoderma lucidum cultivation
Int J Biol Macromol. 2024 Apr 19:131686. doi: 10.1016/j.ijbiomac.2024.131686. Online ahead of print.ABSTRACTDespite a fair amount of lignin conversion during mycelial growth, previous structural analyses have not yet revealed how lignin changes continuously and what the relationship is between lignin and ligninolytic enzymes. To clarify these aspects, Quercus acutissima sawdust attaching Ganoderma lucidum mycelium collected from different growth stage was subjected to analysis of lignin structure and ligninolytic enzyme activity. Two key periods of lignin degradation are found during the cultivation of G. lucidum: hypha ra...
Source: International Journal of Biological Macromolecules - April 21, 2024 Category: Biochemistry Authors: Peng Wang Xiaobin Feng Ziwen Lv Jia Liu Qian Teng Tong Chen Qinghong Liu Source Type: research
Sensitivity and stability improvement on slippery surface-aggregated substrate for trace heavy metals detection using NELIBS
Talanta. 2024 Apr 14;275:126001. doi: 10.1016/j.talanta.2024.126001. Online ahead of print.ABSTRACTThe sensitive and stable detection of trace heavy metals in liquid is crucial given its profound impact on various aspects of human life. Currently, nanoparticle-enhanced laser-induced breakdown spectroscopy (NELIBS) with dried droplet method (DDM) is widely applied for heavy metals detection. Nevertheless, the coffee ring effect (CRE) in DDM affects the stability, accuracy, and sensitivity of NELIBS. Here, we developed a slippery surface-aggregated substrate (SS substrate) to suppress the CRE and enrich analytes, and form a ...
Source: Talanta - April 20, 2024 Category: Chemistry Authors: Siyi Xiao Yuanchao Liu Yawen Luo Yuying Zhu Weiliang Wang Junfei Nie Weihua Huang Chen Niu Aojun Gong Lianbo Guo Source Type: research
Three-dimensional ordered macroporous LaFe1 −xMnxO3 with high stability for efficient NO oxidation and sulfur resistance
Chem. Commun., 2024, Advance Article DOI: 10.1039/D4CC01275E, CommunicationShengjie Zuo, Ping Wang, Miao He, Jiasai Yao, Haocheng Li, Jing Xiong, Xiaohua Sun, Yuechang Wei, Zhenxing Li Three-dimensional ordered macroporous perovskite oxide catalysts with different iron-manganese ratios were prepared by a hard template method for NO oxidation. 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 - Chem. Commun. latest articles)
Source: RSC - Chem. Commun. latest articles - April 19, 2024 Category: Chemistry Authors: Shengjie Zuo Source Type: research
Manganese(I)-catalyzed nucleophilic addition of C(sp3) –H bonds to aldehydes
Chem. Commun., 2024, Advance Article DOI: 10.1039/D4CC01338G, CommunicationHongxin Liu, Tingyu Tang, Bin Li, Baiquan Wang Manganese(I)-catalyzed direct nucleophilic addition reaction of C(sp3) –H bonds to aromatic aldehydes has been developed. This is the first example of manganese(I)-catalyzed C(sp3) –H bond activation. 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 - Chem. Commun. latest articles)
Source: RSC - Chem. Commun. latest articles - April 19, 2024 Category: Chemistry Authors: Hongxin Liu Source Type: research
Hydrophobic carbon quantum dots with red fluorescence: An optical dual-mode and smartphone imaging sensor for identifying Chinese Baijiu quality
Talanta. 2024 Apr 12;275:126064. doi: 10.1016/j.talanta.2024.126064. Online ahead of print.ABSTRACTChinese Baijiu (Liquor) is a popular alcoholic beverage, and the ethanol content in Baijiu is closely related to its quality; therefore, it is of great significance to explore a facile, sensitive, and rapid method to detect ethanol content in Baijiu. Hydrophobic carbon quantum dots (H-CQDs) with bright red fluorescence (24.14 %) were fabricated by hydrothermal method using o-phenylenediamine, p-aminobenzoic acid, manganese chloride, and hydrochloric acid as reaction precursors. After the introduction of ultrapure water into t...
Source: Talanta - April 19, 2024 Category: Chemistry Authors: Zihan Wang Yang Liu Meiqi Liang Yihong Chen Wenjuan Dong Qin Hu Shengmei Song Shaomin Shuang Chuan Dong Xiaojuan Gong Source Type: research
Manganese(I)-catalyzed nucleophilic addition of C(sp < sup > 3 < /sup > )-H bonds to aldehydes
Chem Commun (Camb). 2024 Apr 19. doi: 10.1039/d4cc01338g. Online ahead of print.ABSTRACTThe C-H bond activation catalyzed by a manganese(I) complex has achieved significant development but is limited to C(sp2)-H bonds. In this work, an efficient manganese(I)-catalyzed direct nucleophilic addition reaction of C(sp3)-H bonds to aromatic aldehydes has been developed. This is the first example of manganese(I)-catalyzed C(sp3)-H bond transformation. A manganacycle complex was isolated and proved to be the key active intermediate in the catalytic cycle.PMID:38639013 | DOI:10.1039/d4cc01338g (Source: Chemical Communications)
Source: Chemical Communications - April 19, 2024 Category: Chemistry Authors: Hongxin Liu Tingyu Tang Bin Li Baiquan Wang Source Type: research
Three-dimensional ordered macroporous LaFe < sub > 1- < em > x < /em > < /sub > Mn < sub > < em > x < /em > < /sub > O < sub > 3 < /sub > with high stability for efficient NO oxidation and sulfur resistance
Chem Commun (Camb). 2024 Apr 19. doi: 10.1039/d4cc01275e. Online ahead of print.ABSTRACTNOx is an air pollutant that affects human health. A series of perovskite catalysts with different ratios of lanthanum, iron, and manganese and a three-dimensional ordered microporous structure was prepared, and the strongest catalytic performance was obtained with the LaFe0.1Mn0.9O3 catalyst. LaFe0.1Mn0.9O3 possesses the greatest number of oxygen vacancies and reached 77% NO oxidation conversion at 250 °C, with the highest NO oxidation conversion of 99% at 318 °C. This work provides a promising non-precious metal catalyst for NO oxid...
Source: Chemical Communications - April 19, 2024 Category: Chemistry Authors: Shengjie Zuo Ping Wang Miao He Jiasai Yao Haocheng Li Jing Xiong Xiaohua Sun Yuechang Wei Zhenxing Li Source Type: research
Enzymatic and non-enzymatic removal of organic micropollutants with spent mushroom substrate of Agaricus bisporus
In this study, we assessed the removal of OMPs by spent mushroom substrate (SMS) of the white button mushroom (Agaricus bisporus) and by its aqueous tea extract. Removal of acesulfame K, antipyrine, bentazon, caffeine, carbamazepine, chloridazon, clofibric acid, and N, N-diethyl-meta-toluamide (DEET) by SMS and its tea was between 10 and 90% and 0-26%, respectively, in a 7-day period. Sorption to SMS particles was between 0 and 29%, which can thus not explain the removal difference between SMS and its tea, the latter lacking these particles. Carbamazepine was removed most efficiently by both SMS and its tea. Removal of OMP...
Source: Applied Microbiology and Biotechnology - April 19, 2024 Category: Microbiology Authors: Brigit van Brenk Fleur E L Kleijburg Antoine J B Kemperman Walter G J van der Meer Han A B W östen Source Type: research
Structure –property–performance relationship of vanadium- and manganese-based metal–organic frameworks and their derivatives for energy storage and conversion applications
J. Mater. Chem. A, 2024, Advance Article DOI: 10.1039/D4TA00736K, Review ArticleReza Abazari, Soheila Sanati, Ashok Kumar Nanjundan, Qiyou Wang, Deepak P. Dubal, Min Liu The current review discusses on vanadium- and manganese-based metal –organic frameworks and their derivatives for energy storage and conversion applications along with the potential future advancements in these fields. 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 - J. Mater. Chem. latest articles)
Source: RSC - J. Mater. Chem. latest articles - April 18, 2024 Category: Chemistry Authors: Reza Abazari Source Type: research
Manganese Oxide / Silica catalysed Decarboxylative Ketonization of Aliphatic Carboxylic Acids in a Continuous Flow Reactor
ChemSusChem. 2024 Apr 18:e202400094. doi: 10.1002/cssc.202400094. Online ahead of print.ABSTRACTThe sustainable synthesis of long carbon chain molecules from carbon dioxide, water and electricity relies on the development of waste-free, highly selective C-C bond forming reactions. An example for such a power-to-chemicals process is the industrial-scale fermentation for the production of hexanoic acid. Herein, we describe how this product is transformed into 6-undecanone via decarboxylative ketonization using a heterogeneous manganese oxide / silica catalyst. The reaction reaches full conversion with near-complete selectivi...
Source: ChemSusChem - April 18, 2024 Category: Chemistry Authors: Jonas Felix Goebel Florian Belitz Daniel Sowa Prendes Yannik Haver Patrick Diehl Martin Muhler Lukas J Goossen Source Type: research
Manganese Oxide / Silica catalysed Decarboxylative Ketonization of Aliphatic Carboxylic Acids in a Continuous Flow Reactor
ChemSusChem. 2024 Apr 18:e202400094. doi: 10.1002/cssc.202400094. Online ahead of print.ABSTRACTThe sustainable synthesis of long carbon chain molecules from carbon dioxide, water and electricity relies on the development of waste-free, highly selective C-C bond forming reactions. An example for such a power-to-chemicals process is the industrial-scale fermentation for the production of hexanoic acid. Herein, we describe how this product is transformed into 6-undecanone via decarboxylative ketonization using a heterogeneous manganese oxide / silica catalyst. The reaction reaches full conversion with near-complete selectivi...
Source: ChemSusChem - April 18, 2024 Category: Chemistry Authors: Jonas Felix Goebel Florian Belitz Daniel Sowa Prendes Yannik Haver Patrick Diehl Martin Muhler Lukas J Goossen Source Type: research
Green synthesis of manganese ferrite magnetic nanoparticle and its modification with metallic-organic frameworks for the tetracycline adsorption from aqueous solutions: A mathematical study of kinetics, isotherms, and thermodynamics
Environ Res. 2024 Apr 16:118957. doi: 10.1016/j.envres.2024.118957. Online ahead of print.ABSTRACTIn the current investigation, MnFe2O4/ZIF-8 nanocomposite was generated as a magnetic nanoadsorber using the extract of Dracocephalum plant and characterized by XRD, FTIR, VSM, BET, FESEM, EDS-mapping, TEM, XPS, TPD-NH3, and TGA analyses. Also, to determine its efficiency in the adsorption process of tetracycline, the effect of pH (3-9), nanocomposite dose (0.025-2 g/L), initial pollutant concentration (5-100 mg/L), contact time (5-200 min), and temperature (5-50 °C) were studied. The results of the morphological properties o...
Source: Environmental Research - April 18, 2024 Category: Environmental Health Authors: Moslem Azqandi Bahman Ramavandi Negin Nasseh Davood Zaarei Farzaneh Fanaei Source Type: research
Bubble Assisted Microstreaming during Electrode Deposition of Mn2O3 Energy Harvesters
Phys. Chem. Chem. Phys., 2024, Accepted Manuscript DOI: 10.1039/D3CP05939A, PaperSanchia M. Kharpanbuh, Prahlad K Baruah, Alika Khare, Arpita Nath Deposition of energy harvesting Mn2O3 onto “Cu” electrode is reported by using pulsed laser ablation at manganese-water interface. Conventionally, laser induced plasma deposition is carried out by placing the substrate... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Phys. Chem. Chem. Phys. latest articles)
Source: RSC - Phys. Chem. Chem. Phys. latest articles - April 18, 2024 Category: Chemistry Authors: Sanchia M. Kharpanbuh Source Type: research
Molecules, Vol. 29, Pages 1849: Investigating Ligand Sphere Perturbations on MnIII & ndash;Alkylperoxo Complexes
Molecules, Vol. 29, Pages 1849: Investigating Ligand Sphere Perturbations on MnIII–Alkylperoxo Complexes
Molecules doi: 10.3390/molecules29081849
Authors:
Samuel A. Brunclik
Elizabeth N. Grotemeyer
Zahra Aghaei
Mohammad Rasel Mian
Timothy A. Jackson
Manganese catalysts that activate hydrogen peroxide carry out several different hydrocarbon oxidation reactions with high stereoselectivity. The commonly proposed mechanism for these reactions involves a key manganese(III)-hydroperoxo intermediate, which decays via O&ndash;O bond heterolysis to generate a Mn(V)&ndash;oxo species that in...
Source: Molecules - April 18, 2024 Category: Chemistry Authors: Samuel A. Brunclik Elizabeth N. Grotemeyer Zahra Aghaei Mohammad Rasel Mian Timothy A. Jackson Tags: Article Source Type: research
