Category: 144-80-9

On February 28, 2021, Przybylek, Maciej; Walczak, Patrycja; Ziolkowska, Dorota; Grela, Izabela; Cysewski, Piotr published an article.Product Details of 144-80-9 The title of the article was Studies on the solid-liquid equilibria and intermolecular interactions Urea binary mixtures with Sulfanilamide and Sulfacetamide. And the article contained the following:

The binary phase diagrams of Sulfanilamide-Urea (SN-U) and Sulfacetamide-Urea (SC-U) were measured using differential scanning calorimetry technique (DSC). Both examined mixtures were found to form simple binary eutectics. The limited miscibility in the solid state observed by DSC, proving inability of co-crystallization in new multi-mol. form, was also confirmed using PXRD and FTIR-ATR measurements of solid dispersions obtained via liquid assisted co-grinding. The lack of intermol. complex formation in the crystals does not imply the lack of interactions in the liquid state. Detailed characteristics of potential homo- and hetero-mol. pairs were offered using ab initio and the first principle quantum chem. computations. The obtained results happened to be strongly dependent on the applied level of theory. The importance of including the zero point energy contributions and electron correlation corrections was emphasized. It was found that the mole fraction of hetero-complexes with urea is the highest among all other constituents of studied systems at their eutectic points. Finally, the importance of intermol. interaction leading to complexes formation in the liquid state at saturated position was documented by computed values of solvation Gibbs free energy. Based on computed trends it was inferred that the eutectic mixtures can be interpreted as such equilibrium for which mutual solvation of all components is maximized. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).Product Details of 144-80-9

The Article related to sulfanilamide sulfacetamide urea solid liquid equilibrium intermol interaction, Thermodynamics, Thermochemistry, and Thermal Properties: Calorimetry, Thermal Analysis, Thermogravimetry and other aspects.Product Details of 144-80-9

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Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On February 15, 2022, Misaela, Francisco-Marquez; Alexander, Perez de la Luz; Catalina, Soriano-Correa; Carolina, Barrientos-Salcedo; Ignacio, Sainz-Diaz C. published an article.Formula: C8H10N2O3S The title of the article was Tautomerism and IR spectroscopy of arylsulfonamides by quantum mechanical calculations. And the article contained the following:

The mol. structures of sulfonamides are interesting for evaluating their mobility in soils and preparing composite complexes for optimizing the use of these drugs. In this work, the mol. structures of several arylsulfonamides along with conformational anal. and tautomerism were investigated theor. The spectroscopical properties of several arylsulfonamides, were also studied at mol. level by using a computational modeling at quantum mechanics level. Besides, the controversial exptl. results found in the IR (IR) spectroscopy bands assignments of solid sulfonamides pushed us up to study computationally the crystal structure of sulfamethazine for clarifying previous assignment discrepancies. The previously proposed polymorphism in the crystal structure of this drug has been also clarified in this work. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).Formula: C8H10N2O3S

The Article related to aryl sulfonamide tautomerism crystal polymorphism ir spectra, Physical Organic Chemistry: Absorption, Emission, Reflection, and Scattering Spectra (Ultraviolet and Visible, Infrared and Fourier Transform Infrared, Raman, Microwave, Photoelectron, Fluorescence, Phosphorescence, etc.) and other aspects.Formula: C8H10N2O3S

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On March 9, 2022, He, Tong; Cui, Peng Lei; Liu, Jing; Feng, Cheng; Wang, Jian Ping published an article.HPLC of Formula: 144-80-9 The title of the article was Production of a Natural Dihydropteroate Synthase and Development of a Signal-Amplified Pseudo-Immunoassay for the Determination of Sulfonamides in Pork. And the article contained the following:

In this study, a type of magnetic photoaffinity-labeled activity-based protein profiling probe for sulfonamide drugs was first synthesized for the purpose of capturing the natural dihydropteroate synthase of Escherichia coli by using simple incubation and magnetic separation After characterization of its identity with LC-ESI-MS/MS, this enzyme was used as a recognition reagent to develop a direct competitive pseudo-ELISA for the determination of the residues of 40 sulfonamides in pork. Because of the use of streptavidin-horseradish peroxidase and biotinylated horseradish peroxidase as a signal-amplified system, the limits of detection for the 40 drugs were in the range of 0.001-0.016 ng/mL. Compared to the steps in a conventional assay formation, the operation steps were the same, but the sensitivities increased 32-88-fold. Furthermore, the assay performances were better than the previously reported immunoassays performances for sulfonamides. Therefore, this method could be used as a practical tool for multiscreening the trace levels of sulfonamides residues in food samples. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).HPLC of Formula: 144-80-9

The Article related to dihydropteroate synthase pseudo immunoassay sulfonamide pork, dihydropteroate synthase, magnetic photoaffinity-labeled probe, pork, signal-amplified pseudo-elisa, sulfonamides and other aspects.HPLC of Formula: 144-80-9

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Guo, Feng; Wang, Yanan; Peng, Jie; Huang, Hetian; Tu, Xiangting; Zhao, Hu; Zhan, Nan; Rao, Zhu; Zhao, Gaofeng; Yang, Hongbo published an article in 2022, the title of the article was Occurrence, Distribution, and Risk Assessment of Antibiotics in the Aquatic Environment of the Karst Plateau Wetland of Yangtze River Basin, Southwestern China.Recommanded Product: 144-80-9 And the article contains the following content:

In this study, the occurrence, distribution, and ecol. risk of 40 commonly used antibiotics, including 15 sulfonamides (SAs), 9 fluoroquinolones (FQs), 7 macrolides (MCs), 3 tetracyclines (TCs), 2 chloramphenicols (CAPs), and 4 other categories, in the aquatic environment of the karst plateau wetland Caohai of the Yangtze River basin in southwestern China are reported. In total, 27 antibiotics were detected, with the detection rate ranging from 5% to 100%. The total concentration at each site ranged from 21.8 ng/L to 954 ng/L, with the average concentration being 189 ng/L. FQs and MCs were the most predominant categories, contributing 29.3% and 25.0% of the total antibiotic burden. The five most commonly detected antibiotics were ciprofloxacin (CIP), oxytetracycline (OTC), acetyl sulfamethoxazole (ASMZ), norfloxacin (NOR), and florfenicol (FF). The spatial distribution of the total concentration at each site demonstrated a decreasing trend from the southeastern area upstream adjoining the main counties to the northwestern area downstream, indicating that human activities have a great impact. Meanwhile, the natural attenuation rates of different types of antibiotics in the direction of flow ranged from 17.6% to 100%, which implied the natural purification potential of the wetland for antibiotics. The cluster anal. results indicated that domestic sewage and wastewater from agriculture and animal husbandry were the main sources of contamination in the surrounding wetland. Risk quotients (RQs) assessment showed that most of the individuals were at low to medium risk and that the adverse risks posed by mixtures of antibiotics were higher than those posed by the individual antibiotics. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).Recommanded Product: 144-80-9

The Article related to antibiotic aquatic environment plateau wetland risk assessment southwestern china, antibiotics, aquatic environment, distribution, occurrence, plateau wetland, risk assessment and other aspects.Recommanded Product: 144-80-9

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On August 31, 2022, Rambaldo, Lorenzo; Avila, Hector; Escola Casas, Monica; Guivernau, Miriam; Vinas, Marc; Trobajo, Rosa; Perez-Burillo, Javier; Mann, David G.; Fernandez, Belen; Biel, Carme; Rizzo, Luigi; Bayona, Josep M.; Matamoros, Victor published an article.Computed Properties of 144-80-9 The title of the article was Assessment of a novel microalgae-cork based technology for removing antibiotics, pesticides and nitrates from groundwater. And the article contained the following:

Groundwater pollution has increased in recent years due to the intensification of agricultural and livestock activities. This results in a significant reduction in available freshwater resources. Here, we have studied the long term assessment of a green technol. (1-4 L/day) based on a photobioreactor (PBR) containing immobilized microalgae-bacteria in polyurethane foam (PF) followed by a cork filter (CF) for removing nitrates, pesticides (atrazine and bromacil), and antibiotics (sulfamethoxazole and sulfacetamide) from groundwater. The prototype was moderately effective for removing nitrates (58%) at an HRT of 8 days, while its efficiency decreased at a HRT of 4 and 2 days (<20% removal). The combined use of PBR-CF enabled antibiotics and pesticides to be attenuated by up to 95% at an HRT of 8 days, but their attenuation decreased with shorter HRT, with pesticides being the compounds most affected (reducing from 97 to 98% at an HRT of 8 days to 23-45% at an HRT of 2 days). Pesticide transformation products were identified after the CF, supporting biodegradation as the main attenuation process. A gene-based metataxonomic assessment linked the attenuation of micropollutants to the presence of specific pesticide biodegradation species (e.g. genus Phenylobacterium, Sphingomonadaceae, and Caulobacteraceae). Therefore, the results highlighted the potential use of microalgae and cork to treat polluted groundwater. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).Computed Properties of 144-80-9

The Article related to groundwater pesticide nitrate antibiotics microalgae cork transformation product, antibiotics, microalgae, nitrates, pesticides, photo-biodegradation, transformation products and other aspects.Computed Properties of 144-80-9

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Xue, Weifeng; Yang, Chunguang; Liu, Mengyao; Lin, Xiaomei; Wang, Mei; Wang, Xiaowen published an article in 2022, the title of the article was Metabolomics Approach on Non-Targeted Screening of 50 PPCPs in Lettuce and Maize.Name: N-((4-Aminophenyl)sulfonyl)acetamide And the article contains the following content:

The metabolomics approach has proved to be promising in achieving non-targeted screening for those unknown and unexpected (U&U) contaminants in foods, but data anal. is often the bottleneck of the approach. In this study, a novel metabolomics anal. method via seeking marker compounds in 50 pharmaceutical and personal care products (PPCPs) as U&U contaminants spiked into lettuce and maize matrixes was developed, based on ultrahigh-performance liquid chromatog.-tandem mass spectrometer (UHPLC-MS/MS) output results. Three concentration groups (20, 50 and 100 ng mL-1) to simulate the control and exptl. groups applied in the traditional metabolomics anal. were designed to discover marker compounds, for which multivariate and univariate anal. were adopted. In multivariate anal., each concentration group showed obvious separation from other two groups in principal component anal. (PCA) and orthogonal partial least squares discriminant anal. (OPLS-DA) plots, providing the possibility to discern marker compounds among groups. Parameters including S-plot, permutation test and variable importance in projection (VIP) in OPLS-DA were used for screening and identification of marker compounds, which further underwent pairwise t-test and fold change judgement for univariate anal. The results indicate that marker compounds on behalf of 50 PPCPs were all discovered in two plant matrixes, proving the excellent practicability of the metabolomics approach on non-targeted screening of various U&U PPCPs in plant-derived foods. The limits of detection (LODs) for 50 PPCPs were calculated to be 0.4∼2.0μg kg-1 and 0.3∼2.1μg kg-1 in lettuce and maize matrixes, resp. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).Name: N-((4-Aminophenyl)sulfonyl)acetamide

The Article related to lettuce maize ppcps nontargeted screening metabolomics, marker compounds, metabolomics, non-targeted screening, pharmaceutical and personal care products, plant-derived food and other aspects.Name: N-((4-Aminophenyl)sulfonyl)acetamide

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On June 15, 2021, A, Dan; Chen, Chun-xing; Zou, Meng-yao; Deng, Yang-yang; Zhang, Xiao-meng; Du, Jian-jun; Yang, Yang published an article.Name: N-((4-Aminophenyl)sulfonyl)acetamide The title of the article was Removal efficiency, kinetic, and behavior of antibiotics from sewage treatment plant effluent in a hybrid constructed wetland and a layered biological filter. And the article contained the following:

Sewage treatment plant (STP) is the major point source of antibiotic contamination, yet the advanced treatment of antibiotic polluted STP effluent has not been given necessary attention. This study is conducted to evaluate the removal efficiency, kinetic, and behavior of sulfonamides, quinolones, tetracyclines, and macrolides antibiotics from STP effluent in a hybrid constructed wetland (HCW) and a layered biol. filter (LBF) at different hydraulic loading rates (HLRs). The results showed that the removal efficiency of antibiotics in all the HLRs was ranked as follow: quinolones of HCW (70-95%) > macrolides of HCW (58-77%) > tetracyclines of both systems (59-67%) > quinolones of LBF (28-64%) > macrolides of LBF (13-25%) > sulfonamides of both systems (<0%). The optimal HLR is 1.0 m/day for quinolones and 2.0 m/day for tetracyclines-macrolides in the HCW, and 6.4 m/day for quinolones-tetracyclines in the LBF, resp. Although HCW performed better on the removal of most antibiotics, LBF exhibited stronger total loading toleration and higher removal loading ability to antibiotics. Among them, quinolones were markedly removed by multiple effect of substrate adsorption, microbial anaerobic degradation, and photolysis in the HCW (planted), and by filter sorption and interception in the LBF (unplanted); adsorption is the dominant elimination approach for tetracyclines in both systems; plant uptake plays a significant role on the removal of macrolides in the HCW. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).Name: N-((4-Aminophenyl)sulfonyl)acetamide

The Article related to antibiotic removal kinetics hcw lbf wastewater sewage treatment plant, artificial wetland, biofilter, deep purification, pharmaceutical, wastewater treatment plant discharge and other aspects.Name: N-((4-Aminophenyl)sulfonyl)acetamide

Referemce:
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Amide – an overview | ScienceDirect Topics

On September 1, 2022, Xing, Liqun; Li, Aimin; Sun, Jie; Kong, Fanjie; Kong, Ming; Li, Jun; Zhang, Rui published an article.Electric Literature of 144-80-9 The title of the article was Insights into the occurrence, elimination efficiency and ecological risk of antibiotics in rural domestic wastewater treatment facilities along the Yangtze River Basin, China. And the article contained the following:

China is embarking on the treatment of rural domestic wastewater, but little information on the characteristics of antibiotics in the rural domestic wastewater is available. As one of the most important new-emerging pollutants, antibiotic has been explicitly proposed to be controlled and treated since the fifth plenary session of the 19th Central Committee of the Communist Party of China. Thus, the occurrence, elimination efficiency and ecol. risk of antibiotics, as well as conventional wastewater quality parameters were investigated in influents and effluents from 41 rural domestic wastewater treatment facilities (RD-WWTFs) along the Yangtze River Basin. Results showed that elimination efficiencies of routinely monitored conventional pollutants in 33 RD-WWTFs (accounting for 80.5%) were effective based on conventional wastewater quality parameters. Of 39 target antibiotics selected, 26 ones were detected in the influents and effluents with a detection frequency (DF) between 2.4% and 100%. No significant decrease of antibiotics was observed in the effluents compared with that in the influents except chlortetracyclin (CTE) and tetracycline (TCs). The composition characteristics of antibiotics showed regional differences. Among the investigated antibiotics, ofloxacin (OFX), doxycycline (DOX), roxithromycin (ROX) and lincomycin (LIN) were the predominant, totally accounted for a median percentage of more than 60% of ΣAB concentrations in both influents and effluents. Ecol. risk values of ΣABs showed that 11 effluents presented high risks (26.8%), 18 ones had moderate risks (43.9%), and the rest 12 ones showed low risks (29.3%). Moreover, oxytetracycline (OXY), norfloxacin (NOR), LIN and ROX was the dominant contributors to the ecol. risk values. Overall, the elimination effect of antibiotics was limited in RD-WWTFs along the Yangtze River Basin, which was likely to pose potential adverse impacts on aquatic ecosystems. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).Electric Literature of 144-80-9

The Article related to antibiotics ecol risk domestic wastewater treatment china, emerging organic pollutants, environmental impact, influent and effluent, regional differences, removal efficiency and other aspects.Electric Literature of 144-80-9

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On February 2, 2021, Tang, Jinpeng; Fang, Ji; Tam, Nora Fungyee; Yang, Yang; Dai, Yunv; Zhang, Jinhua; Shi, Yuming published an article.Category: amides-buliding-blocks The title of the article was Impact of phytoplankton blooms on concentrations of antibiotics in sediment and snails in a subtropical river, China. And the article contained the following:

The present three-year field investigation on sediment in the eutrophic Pearl River in South China showed that concentrations of sulfonamides (SAs), fluoroquinolones (FQs), and macrolides (MLs) in the river areas where blooms occurred were 4.6, 2.4, and 3.4 times higher than those without blooms, resp., but the resp. concentrations of tetracycline (TC) and oxytetracycline (OTC) in the areas with blooms were 2.6 and 3.8 times lower than those without. Significant pos. correlations were found between concentrations of chlorophyll a in water and most antibiotics in sediment. Further investigation in each season suggested that lower diffusion but higher sinking were possible reasons driving the burial of sulfapyridine (SPD), sulfamethoxazole (SMX), and trimethoprim (TMP) in sediment from areas where blooms occurred, with burial rates up to 14.86, 48.58, and 52.19 g month-1, resp. Concentrations of TCs in both water and sediment were inversely correlated with phytoplankton biomass, which might be related to the enhanced biodegradation capacity of bacteria caused by phytoplankton blooms. Phytoplankton also affected concentrations of antibiotics in the snail, Bellamya purificata, with higher values in March but lower values in Sept. The concentration of antibiotics in snails pos. correlated with that in sediment when snails were dormant but with antibiotics in water after dormancy. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).Category: amides-buliding-blocks

The Article related to phytoplankton blooms concentration antibiotics sediment snails subtropical river china, antibiotics, biodegradable pollutants, chemodynamics, eutrophic river, sedimentation and other aspects.Category: amides-buliding-blocks

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Amide – an overview | ScienceDirect Topics

On August 1, 2021, Guo, Ruonan; Li, Yunhe; Chen, Ying; Liu, Yu; Niu, Bihui; Gou, Jianfeng; Cheng, Xiuwen published an article.Recommanded Product: 144-80-9 The title of the article was Efficient degradation of sulfamethoxazole by CoCu LDH composite membrane activating peroxymonosulfate with decreased metal ion leaching. And the article contained the following:

In this study, we prepared two types of composite membranes decorated with CoCu layered double hydroxide (LDH) nanoparticles, i.e. LDH@Calotropis gigantean fiber (LDH@CGF) and LDH@polyvinylidene fluoride (LDH@PVDF) for the first time. Besides, the application potential of different types of composite functional membranes based on LDH in PMS activation system was compared. Both of the LDH-based composite membranes exhibited excellent activity in peroxymonosulfate (PMS) activation process. More importantly, the composite membrane could be separated from the treated water to meet the need of practical application. The superior composite membrane was identified as LDH@PVDF, which was with excellent PMS activation capability and pretty lower metal ions leaching concentration (cobalt 0.044 mg L-1, copper 0.026 mg L-1). And then, LDH@PVDF was employed to investigate the PMS activation performance in various pharmaceutical pollutants removal processes. Besides, the activity of LDH@PVDF for SMX degradation in real aquatic environment (tap water and wastewater) was detected, proving the wide practical applicability of LDH@PVDF membrane. Finally, the possible SMX degradation pathway and PMS activation mechanism occurring in LDH-based composite membrane/PMS system were proposed. Hence, this study for LDH-based membranes construction may provide new insights into the environmentally-friendly catalytic membranes preparation and practical application in wastewater treatment. The experimental process involved the reaction of N-((4-Aminophenyl)sulfonyl)acetamide(cas: 144-80-9).Recommanded Product: 144-80-9

The Article related to sulfamethoxazole degradation cobalt copper layered double hydroxide composite membrane, composite membrane peroxymonosulfate metal ion leaching pharmaceutical wastewater treatment and other aspects.Recommanded Product: 144-80-9

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Amide – an overview | ScienceDirect Topics