keyword
https://read.qxmd.com/read/38636918/the-flow-pattern-effects-of-hydrodynamic-cavitation-on-waste-activated-sludge-digestibility
#21
JOURNAL ARTICLE
Amr Mustafa Abdelrahman, Seyedreza Tebyani, Farzad Rokhsar Talabazar, Saba Aghdam Tabar, Nastaran Rahimzadeh Berenji, Araz Sheibani Aghdam, Ismail Koyuncu, Ali Kosar, Huseyin Guven, Mustafa Evren Ersahin, Morteza Ghorbani, Hale Ozgun
The disintegration of raw sludge is of importance for enhancing biogas production and facilitates the degradation of substrates for microorganisms so that the efficiency of digestion can be increased. In this study, the effect of hydrodynamic cavitation (HC) as a pretreatment approach for waste activated sludge (WAS) was investigated at two upstream pressures (0.83 and 1.72 MPa) by using a milli-scale apparatus which makes sludge pass through an orifice with a restriction at the cross section of the flow. The HC probe made of polyether ether ketone (PEEK) material was tested using potassium iodide solution and it was made sure that cavitation occurred at the selected pressures...
April 16, 2024: Chemosphere
https://read.qxmd.com/read/38636394/interaction-of-selected-alkoxy-naringenin-oximes-with-model-and-bacterial-membranes
#22
JOURNAL ARTICLE
Olga Wesołowska, Anna Duda-Madej, Maria Błaszczyk, Kamila Środa-Pomianek, Joanna Kozłowska, Mirosław Anioł
Naringenin is a flavonoid found in many fruits and herbs, most notably in grapefruits. In recent years, this compound and its derivatives have been of great interest due to their high biological activity, including fungicidal and bactericidal effects, also in relation to multidrug-resistant bacteria. Membrane interactions of naringenin oxime (NO) and its 7-O-alkyl (7-alkoxy) derivatives, such as methyl (7MENO), ethyl (7ETNO), isopropyl (7IPNO), n-butyl (7BUNO) and n-pentyl (7PENO) were studied. Thermotropic properties of model membranes were investigated via differential scanning calorimetry (DSC), the influence on lipid raft mimicking giant unilamellar vesicles (GUVs) via fluorescence microscopy, and membrane permeability via measuring calcein leakage from liposomes...
April 16, 2024: Biomedicine & Pharmacotherapy
https://read.qxmd.com/read/38634602/retrograde-solubility-of-methylammonium-lead-iodide-in-%C3%AE-butyrolactone-does-not-enhance-the-uniformity-of-continuously-coated-films
#23
JOURNAL ARTICLE
Maimur Hossain, Jesse L Starger, Jesse J Efymow, Ryan F Barrett, Jacob S Bolduc, Nicolas J Alvarez, Richard A Cairncross, Aaron T Fafarman, Jason B Baxter
Halide perovskite thin films can be the centerpiece of high-performance solar cells, light-emitting diodes, and other optoelectronic devices if the films are of high uniformity and relatively free of pinholes and other defects. A common strategy to form dense films from solution has been to generate a high density of nuclei by rapidly increasing supersaturation, for example, by timely application of an antisolvent or forced convection. In this work, we examine the role of retrograde solubility, wherein solubility decreases with increasing temperature, as a means of increasing the nucleation density and film coverage of slot-die-coated methylammonium lead iodide (MAPbI3 ) from γ-butyrolactone (GBL) solution...
April 18, 2024: Langmuir: the ACS Journal of Surfaces and Colloids
https://read.qxmd.com/read/38634285/redox-active-triazole-derived-mesoionic-imines-with-ferrocenyl-substituents-and-their-metal-complexes-directed-hydrogen-bonding-unusual-c-h-activation-and-ion-pair-formation
#24
JOURNAL ARTICLE
Richard Rudolf, Derman Batman, Niklas Mehner, Robert R M Walter, Biprajit Sarkar
We present herein the synthesis, characterization and complexation of ferrocenyl-substituted MIIs (mesoionic imines) and their metal complexes. In the free MIIs, strong hydrogen bonding interactions are observed between the imine-N and the C-H bonds of the ferrocenyl substituents both in the solid state and in solution. The influence of this hydrogen bonding is so strong that complexation of the MIIs with [IrCp*Cl2]2 yields unique six-membered iridacycles via C-H-activation of the corresponding C-H-site at the Fc-substituent and not the Ph-substituent...
April 18, 2024: Chemistry: a European Journal
https://read.qxmd.com/read/38632070/-therapeutic-mechanism-of-basic-fibroblast-growth-factor-on-spinal-cord-injury-in-rats-based-on-the-notch-signal-transducer-and-activator-of-transcription-3-signaling-pathway
#25
JOURNAL ARTICLE
Chunfeng Cao, Gaohai Shao, Minghua Zhang, Bo Li, Haitao Xu, Hongjun Zhang, Yiming Qu
OBJECTIVE: To explore the therapeutic effect of basic fibroblast growth factor (bFGF) on spinal cord injury (SCI) in rats and the influence of Notch/signal transducer and activator of transcription 3 (STAT3) signaling pathway. METHODS: A total of 40 10-week-old male Sprague Dawley (SD) rats were selected to establish T 10 -segment SCI model by a free falling object. Among them, 32 successful models were randomly divided into model group and bFGF group, with 16 in each group...
April 15, 2024: Chinese Journal of Reparative and Reconstructive Surgery
https://read.qxmd.com/read/38630068/metal-free-bisamidation-of-n-tosylhydrazones-with-carboxylic-acids-promoted-by-tetrabutylammonium-iodide-and-tert-butyl-hydroperoxide
#26
JOURNAL ARTICLE
Ali Shamnad, Kalinga H Nayak, Beneesh P Babu
A versatile reaction between N -tosylhydrazones and carboxylic acids to access bisamides is reported. This metal-free, room-temperature reaction was catalyzed by TBAI, while TBHP served as the oxidant. Broad substrate scope and good functional group tolerance are the key features of the strategy. Subsequent intramolecular N-arylation of suitably substituted bisamides readily afforded functionalized 3-indazolones.
April 17, 2024: Journal of Organic Chemistry
https://read.qxmd.com/read/38628184/evaluation-of-fig-milk-dessert-bioactive-properties-as-a-potential-functional-food
#27
JOURNAL ARTICLE
Niloofar Zare, Mahsa Sedighi, Hasan Jalili, Hamid Zare, Neda Maftoon Azad
The fig-milk dessert, a traditional and nutritionally rich treat infused with bioactive compounds, was subjected to a comprehensive analysis in this study. The novelty of this research lies in the investigation of the in vitro antioxidant, anticancer, and antimicrobial potential of the fig-milk dessert. This was accomplished through the utilization of the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay, Annexin/propidium iodide staining, microtiter plate-based assay and agar well diffusion, respectively, for the first time...
April 2024: Food Science & Nutrition
https://read.qxmd.com/read/38627892/broadband-green-luminescence-and-phase-transition-in-low-dimensional-organic-inorganic-hybrid-iodate
#28
JOURNAL ARTICLE
Yangwu Guo, Ziwei Yu, Kui Wang, Meiqiu Dong, Xinyi Li, Xinglong Yang, Yu Zhang
Organic-inorganic hybrid iodide systems, which can form highly ordered chromophores and uniformly oriented transition dipole moments, serve as optimal host-guest systems for the fabrication of micrometer-scale optical devices. In particular, those with low-dimensional structures can exhibit strong quantum-limited and highly localized charges, enabling the generation of high exciton energies and stable excitation emission. In this study, we report a novel instance of an organic-inorganic hybrid iodate, (C13 H11 N2 )(IO3 ), which was synthesized by incorporating the optically active organic compound, 9-aminoacridine...
April 16, 2024: Inorganic Chemistry
https://read.qxmd.com/read/38627796/increased-levels-of-villus-derived-exosomal-mir-29a-3p-in-normal-pregnancy-than-urpl-patients-suppresses-decidual-nk-cell-production-of-interferon-%C3%AE-and-exerts-a-therapeutic-effect-in-abortion-prone-mice
#29
JOURNAL ARTICLE
Zheng Fang, Jiaqin Mao, Jialyu Huang, Huijun Sun, Xueyan Lu, Hui Lei, Jie Dong, Shuqiang Chen, Xiaohong Wang
OBJECTIVE: Recurrent pregnancy loss (RPL) patients have higher absolute numbers of decidual natural killer (dNK) cells with elevated intracellular IFN-γ levels leading to a pro-inflammatory cytokine milieu, which contributes to RPL pathogenesis. The main objective of this study was twofold: first to explore the regulatory effects and mechanisms of villus-derived exosomes (vEXOs) from induced abortion patients or RPL patients at the level of intracellular IFN-γ in dNK cells; second to determine the validity of application of vEXOs in the treatment of unexplained RPL (uRPL) through in vitro experiments and mouse models...
April 16, 2024: Cell Communication and Signaling: CCS
https://read.qxmd.com/read/38626428/low-power-perovskite-neuromorphic-synapse-with-enhanced-photon-efficiency-for-directional-motion-perception
#30
JOURNAL ARTICLE
Sixian Liu, Zhixin Wu, Zhilong He, Weilin Chen, Xiaolong Zhong, Bingjie Guo, Shuzhi Liu, Hongxiao Duan, Yanbo Guo, Jianmin Zeng, Gang Liu
The advancement of artificial intelligent vision systems heavily relies on the development of fast and accurate optical imaging detection, identification, and tracking. Framed by restricted response speeds and low computational efficiency, traditional optoelectronic information devices are facing challenges in real-time optical imaging tasks and their ability to efficiently process complex visual data. To address the limitations of current optoelectronic information devices, this study introduces a novel photomemristor utilizing halide perovskite thin films...
April 16, 2024: ACS Applied Materials & Interfaces
https://read.qxmd.com/read/38625098/stereoselective-fluoroalkylacylation-of-alkynes-via-cooperative-n-heterocyclic-carbene-palladium-catalysis
#31
JOURNAL ARTICLE
Ying Huang, Xin-Han Wang, Chun-Lin Zhang, Song Ye
Herein, a cooperative N -heterocyclic carbene- and palladium-catalyzed three-component reaction of alkynes with aldehydes and fluoroalkyl iodides is developed. A series of biologically valuable CF 2 R -incorporated α-substituted enones was obtained in moderate to good yields. This mild catalytic method exhibits exclusive regio- and stereoselectivity, excellent functional group tolerance, and a broad substrate scope including terminal and internal alkynes. Mechanistic investigations disclose that this alkyne fluoroalkylacylation proceeds via a radical relay process in which vinyl iodides serve as putative reaction intermediates...
April 16, 2024: Organic Letters
https://read.qxmd.com/read/38623716/engineering-of-halide-methyltransferase-bxhmt-through-dynamic-cross-correlation-network-analysis
#32
JOURNAL ARTICLE
Chun-Yu Gao, Gui-Ying Yang, Xu-Wei Ding, Jian-He Xu, Xiaolin Cheng, Gao-Wei Zheng, Q I Chen
Halide methyltransferases (HMTs) provide an effective way to regenerate S-adenosyl methionine (SAM) from S-adenosyl homocysteine and reactive electrophiles such as methyl iodide (MeI) or methyl toluene sulfonate (MeOTs). Compared with MeI, the cost-effective unnatural substrate MeOTs can be accessible directly from cheap and abundant alcohols, but shows only limited reactivity in SAM production. Herein, we developed a dynamic cross-correlation network analysis (DCCNA) strategy for quickly identifying hot spots influencing the enzyme's catalytic efficiency, and applied it to the evolution of HMT from Paraburkholderia xenovorans...
April 16, 2024: Angewandte Chemie
https://read.qxmd.com/read/38620035/the-impact-of-physical-activity-on-thyroid-health-insights-from-representative-data-in-korea
#33
JOURNAL ARTICLE
Jeongmin Lee, Han-Sang Baek, Kwanhoon Jo, Min-Hee Kim, Jung Min Lee, Sang Ah Chang, Dong-Jun Lim
CONTEXT: Thyroid hormones are essential for energy metabolism related to thermogenesis and oxygen consumption. OBJECTIVE: This study evaluated the potential association of thyroid function including thyroid peroxidase antibodies (TPOAb) with physical activity in nationally representative data. DESIGN/SETTING/PARTICIPANTS: This retrospective cohort study used data from the Korean National Health and Nutrition Examination Survey between 2013 and 2015...
April 15, 2024: Journal of Clinical Endocrinology and Metabolism
https://read.qxmd.com/read/38619681/znf554-inhibits-endometrial-cancer-progression-via-regulating-rbm5-and-inactivating-wnt-%C3%AE-catenin-signaling-pathway
#34
JOURNAL ARTICLE
Cheng-Cheng Zhu, Heng-Liang Sun, Teng-Fei Long, Yuan-Yuan Lyu, Jiang-Li Liu, Guan-Tai Ni
OBJECTIVE: Uterine corpus endometrial carcinoma (UCEC), a kind of gynecologic malignancy, poses a significant risk to women's health. The precise mechanism underlying the development of UCEC remains elusive. Zinc finger protein 554 (ZNF554), a member of the Krüppel-associated box domain zinc finger protein superfamily, was reported to be dysregulated in various illnesses, including malignant tumors. This study aimed to examine the involvement of ZNF554 in the development of UCEC...
April 15, 2024: Current Medical Science
https://read.qxmd.com/read/38617778/the-role-and-mechanism-of-pdz-binding-kinase-in-hypobaric-and-hypoxic-acute-lung-injury
#35
JOURNAL ARTICLE
Linao Sun, Haoran Yue, Hao Fang, Runze Li, Shicong Li, Jianyao Wang, Pengjie Tu, Fei Meng, Wang Yan, Jinxia Zhang, Elena Bignami, Kyeongman Jeon, Biniam Kidane, Peng Zhang
BACKGROUND: Acute lung injury (ALI) caused by hypobaric hypoxia (HH) is frequently observed in high-altitude areas, and it is one of the leading causes of death in high-altitude-related diseases due to its rapid onset and progression. However, the pathogenesis of HH-related ALI (HHALI) remains unclear, and effective treatment approaches are currently lacking. METHODS: A new mouse model of HHALI developed by our laboratory was used as the study subject (Chinese patent No...
March 29, 2024: Journal of Thoracic Disease
https://read.qxmd.com/read/38617683/process-for-producing-lithium-iodide-cleanly-through-electrodialysis-metathesis
#36
JOURNAL ARTICLE
Xu Li, Xinlai Wei, Ningning Yang, Xuan Wang, Qun Wang, Ke Wu
Lithium iodide is commonly used in the production of batteries and drugs. Currently, the neutralization method is the primary means of producing lithium iodide. This method involves using hydriodic acid as a raw material, adding lithium carbonate or lithium hydroxide, and obtaining lithium iodide through evaporation and concentration. However, hydriodic acid is chemically unstable. Its preparation can lead to explosive accidents and encountering high temperatures generates toxic iodine vapors. These limitations restrict its industrial production...
April 9, 2024: ACS Omega
https://read.qxmd.com/read/38616089/optimizing-n-n-n-trimethyl-chitosan-synthesis-a-design-of-experiments-doe-approach
#37
JOURNAL ARTICLE
Vivien Nagy, Bergthóra S Snorradóttir, Hélène Liette Lauzon, Már Másson
This study aimed to optimize the synthesis of trimethyl chitosan (TMC) with a high degree of N,N,N-trimethylation (DTM) through a one-step procedure, minimizing reagent use, reaction time, and avoiding O-methylation, using the Design of Experiments (DoE) approach. Initially, sequential designs were done. Following the determination of the initial conditions a Fractional Factorial Design was used, investigating methyl iodide (MeI) and NaHCO3 molar ratios, temperature, and reaction time on DTM. MeI and NaHCO3 molar ratios were found to be significant (p-values equal to 0...
July 1, 2024: Carbohydrate Polymers
https://read.qxmd.com/read/38614220/how-the-xenopus-eleutheroembryonic-thyroid-assay-compares-to-the-amphibian-metamorphosis-assay-for-detecting-thyroid-active-chemicals
#38
JOURNAL ARTICLE
David Du Pasquier, Benoît Salinier, Katherine K Coady, Alan Jones, Oliver Körner, Jessica LaRocca, Gregory Lemkine, Barbara Robin-Duchesne, Lennart Weltje, James R Wheeler, Laurent Lagadic
The Xenopus Eleutheroembryonic Thyroid Assay (XETA) was recently published as an OECD Test Guideline for detecting chemicals acting on the thyroid axis. However, the OECD validation did not cover all mechanisms that can potentially be detected by the XETA. This study was therefore initiated to investigate and consolidate the applicability domain of the XETA regarding the following mechanisms: thyroid hormone receptor (THR) agonism, sodium-iodide symporter (NIS) inhibition, thyroperoxidase (TPO) inhibition, deiodinase (DIO) inhibition, glucocorticoid receptor (GR) agonism, and uridine 5'-diphospho-glucuronosyltransferase (UDPGT) induction...
April 11, 2024: Regulatory Toxicology and Pharmacology: RTP
https://read.qxmd.com/read/38612388/confinement-of-a-styryl-dye-into-nanoporous-aluminophosphates-channels-vs-cavities
#39
JOURNAL ARTICLE
Ainhoa Oliden-Sánchez, Rebeca Sola-Llano, Joaquín Pérez-Pariente, Luis Gómez-Hortigüela, Virginia Martínez-Martínez
Styryl dyes are generally poor fluorescent molecules inherited from their flexible molecular structures. However, their emissive properties can be boosted by restricting their molecular motions. A tight confinement into inorganic molecular sieves is a good strategy to yield highly fluorescent hybrid systems. In this work, we compare the confinement effect of two Mg-aluminophosphate zeotypes with distinct pore systems (the AEL framework, a one-dimensional channeled structure with elliptical pores of 6.5 Å × 4...
March 22, 2024: International Journal of Molecular Sciences
https://read.qxmd.com/read/38612159/suppressing-the-shuttle-effect-of-aqueous-zinc-iodine-batteries-progress-and-prospects
#40
REVIEW
Mengyao Li, Juan Wu, Haoyu Li, Yude Wang
Aqueous zinc-iodine batteries are considered to be one of the most promising devices for future electrical energy storage due to their low cost, high safety, high theoretical specific capacity, and multivalent properties. However, the shuttle effect currently faced by zinc-iodine batteries causes the loss of cathode active material and corrosion of the zinc anodes, limiting the large-scale application of zinc-iodine batteries. In this paper, the electrochemical processes of iodine conversion and the zinc anode, as well as the induced mechanism of the shuttle effect, are introduced from the basic configuration of the aqueous zinc-iodine battery...
April 3, 2024: Materials
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