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1.
Mohammadreza Moghaddam-manesh Hamid Beyzaei Mostafa Heidari Majd Sara Hosseinzadegan Kiarash Ghazvini 《Journal of heterocyclic chemistry》2021,58(7):1525-1530
In this study, anticancer, antibacterial (against hospital-isolated antibiotic-resistant Escherichia coli strains), antifungal, and antioxidant effects of synthesized heterocyclic compounds 5 and 7 containing thiazole core were examined. Cytotoxicity testing was utilized against MCF-7 breast cancer cells via MTT cell viability assay. Antibacterial and antifungal activities were checked out according to Clinical and Laboratory Standards Institute (CLSI) guidelines, and antioxidant properties were evaluated through scavenging 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radicals. Results showed the viability of breast cancer cell lines was reliant on concentration of heterocycles and time of incubation. Synthetic compounds exhibited excellent antibacterial and antifungal properties base on their minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), and minimum fungicidal concentration (MFC) values as well as high antioxidant activities according to their IC50 values. Higher anticancer and antibacterial properties were observed with compound 7; on the contrary, thiazole 5 had better antioxidant effects. They can be introduced as potent antimicrobial, antioxidant, and anticancer agents. 相似文献
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Sokhal Gurpreet Singh Dhindsa Gurprinder Singh Sokhal Kamaljit Singh Ghazvini Mahyar Sharifpur Mohsen Sadeghzadeh Milad 《Journal of Thermal Analysis and Calorimetry》2021,145(3):727-737
Journal of Thermal Analysis and Calorimetry - The main aim of this study is to evaluate thermal performance and exergy analysis of a shell-and-tube heat exchanger with a new technique called air... 相似文献
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Ebrahim H. Ghazvini Zadeh Nader E. Abo-Dya Ania C. Sotuyo Ion Ghiviriga C. Dennis Hall 《Tetrahedron letters》2013
A convenient method toward the synthesis of α-amino acid-derived unsymmetrical ureas 2 is described herein. This route involves an interesting rearrangement of amides of N-Cbz-α-amino acids 1, which presumably entails the intermediacy of hydantoins that is followed by hydrolysis to afford unsymmetrical ureas 2 in quantitative yields and high purity. 相似文献
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Issa Yavari Mohammad M. Ghanbari Ashraf S. Shahvelayati Maryam Ghazvini 《Phosphorus, sulfur, and silicon and the related elements》2013,188(12):2551-2557
Stable crystalline phosphorus ylides are obtained in excellent yields from the 1:1:1 addition reaction between 5,5-diarylthiohydantoins and dialkyl acetylenedicarboxylates in the presence of triphenylphosphine. These phosphoranes undergo a smooth intramolecular Wittig reaction followed by an electrocyclic ring opening to produce dialkyl 2-(2,5-dihydro-5,5-diaryl-2-thioxo-1H-imidazol-4-yl)but-2-enedioates in good yields. 相似文献
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In this paper, we introduce a general modeling approach for the crosstalk phenomenon within electro-magnetic systems. We model the phenomenon by bilateral coupling of two sets of differential equations, namely non-stationary Maxwell equations and circuit equations. Considering these two sets of equations as input-output systems, the bilateral coupling approach connects the output of one system to the input of the other system and conversely, via coupling and re-coupling relations. The coupling of these two sets leads to a set of partial differential-algebraic equations modeling the crosstalk phenomenon. (© 2015 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) 相似文献
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I. Yavari A. S. Shahvelayati M. Ghanbari M. Ghazvini M. Piltan 《Journal of the Iranian Chemical Society》2011,8(3):636-642
N-Protected ??-amino acids, prepared from benzoyl chlorides, KSCN and ??-amino acids, were used as the acid component in the Passerini reaction, in an ionic liquid, to produce functionalized ??-acyloxythioamides in 59?C95% yields. The work-up procedure was fairly simple and the products did not require further purification. 相似文献
8.
Helia?Sojoudiasli Marie-Claude?Heuzey Pierre?J.?CarreauEmail author Bernard?Riedl 《Rheologica Acta》2017,56(7-8):673-682
The rheological behavior of cellulose nanocrystal (CNC) and modified CNC (mCNC) suspensions in dimethyl sulfoxide (DMSO) was investigated. The efficiency of the surface modification of CNCs by grafting an organic acid chloride to produce hydrophobic CNCs has been verified by X-ray photoelectron spectroscopy (XPS). The thermal degradation temperature of the mCNCs was found to be 165 versus 275 °C for CNCs. The CNC suspensions in DMSO at 70 °C underwent gelation at very low concentration (1 wt%) after 1 day. The network formation was temperature sensitive and did not occur at room temperature. For gels containing 3 wt% CNCs, the complex viscosity at 70 °C increased by almost four decades after 1 day. For the mCNCs in DMSO, a weak gel was formed from the first day and temperature did not affect the gelation. Finally, the effect of adding 10 wt% of polylactide (PLA) to the solvent on the rheological properties of CNC and mCNC suspensions was investigated. The properties of suspensions containing 1.9 wt% CNCs and mCNCs increased during the first and second days, and PLA did not prevent gel formation. However, the reduced viscosity and storage modulus of the CNC and mCNC gels with PLA were lower than those of samples without PLA. 相似文献
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S. Ehsan Samimi Mohsen Masihi Shahab Gerami Mostafa Ganjeh Ghazvini 《Transport in Porous Media》2012,94(1):207-223
In fractured oil reservoirs, the gravity drainage mechanism has great potentials to higher oil recovery in comparison with other mechanisms. Recently, the forced gravity drainage assisted by gas injection has also been considered; however, there are few comprehensive studies in the literature. Dual porosity model, the most common approach for simulation of fractured reservoirs, uses transfer function concept to represent the fluid exchange between matrix and its neighborhood fractures. This study compares the results of different available transfer functions with those of fine grid simulations when forced gravity drainage contributes to oil production from a single matrix block. These comparisons can lead to a more sophisticated formulation including the interplay of capillary, gravity and viscous forces. As a result, a new matrix-fracture transfer function can be developed and its results can be tested against the results of fine-grid simulations. Moreover, the reliability of this model for simulation of forced gravity drainage has been demonstrated by performing some sensitivity analysis. 相似文献
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The reaction of 3,6-diaryl-1,2,4,5-tetrazines and 2-aryl substituted acetonitriles, under basic conditions, leads unexpectedly to 3,5-diaryl-(NH)-1,2,4-triazoles in moderate yields. A mechanism is proposed. 相似文献