Results 31 to 40 of about 76,467 (269)

Automated Online Solid-Phase Extraction Coupled with Sequential Injection-HPLC-EC System for the Determination of Sulfonamides in Shrimp

International Journal of Electrochemistry, 2012
The use of fully automated online solid-phase extraction (SPE) coupled with sequential injection analysis, high-performance liquid chromatography (HPLC), and electrochemical detection (EC) for the separation and determination of sulfonamides has been ...
Pimkwan Chantarateepra, Weena Siangproh, Shoji Motomizu, Orawon Chailapakul   +3 more
doaj   +1 more source

Exploring the potential of propanamide-sulfonamide based drug conjugates as dual inhibitors of urease and cyclooxygenase-2: biological and their in silico studies

Frontiers in Chemistry, 2023
Derivative synthesis has been a crucial method for altering the effects of already-approved medications, especially to lessen adverse effects and enhance results.
Saghir Ahmad, Saghir Ahmad, Muhammad Abdul Qadir, Mahmood Ahmed, Muhammad Imran, Numan Yousaf, Tanveer A. Wani, Seema Zargar, Ijaz Ali, Muhammad Muddassar   +9 more
doaj   +1 more source

Enantioselective Hydroamination of Alkenes with Sulfonamides Enabled by Proton-Coupled Electron Transfer.

Journal of the American Chemical Society, 2020
An enantioselective, radical-based method for the intramolecular hydroamination of alkenes with sulfonamides is reported. These reactions are proposed to proceed via N-centered radicals formed by proton-coupled electron transfer (PCET) activation of ...
Casey B. Roos, J. Demaerel, David E. Graff, R. Knowles   +3 more
semanticscholar   +1 more source

Real-life data on the efficacy and safety of ombitasvir/paritaprevir/ritonavir + dasabuvir +ribavirin in the patients with genotype 1 chronic hepatitis C virus infection in Serbia [PDF]

Vojnosanitetski Pregled, 2019
Background/Aim. The era of direct-acting antiviral (DAA) regimen in the treatment of chronic hepatitis C virus (HCV) started in 2011. The aim of this study was to assess the antiviral efficacy and safety of DAA regimen, ombitasvir (OBV)/paritaprevir (PTV)
Simonović-Babić Jasmina, Bojović Ksenija, Fabri Milotka, Cvejić Tatjana, Svorcan Petar, Nožić Darko, Jovanović Maja, Škrbić Ranko, Stojiljković Miloš P., Mijailović Željko   +9 more
doaj   +1 more source

A Paper-Based Multicolor Colorimetric Aptasensor for the Visual Determination of Multiple Sulfonamides Based on Aptamer-Functionalized Magnetic Beads and NADH–Ascorbic Acid-Mediated Gold Nanobipyramids

Chemosensors, 2023
It is crucial that simple and high-throughput methods for determining multiple, or groups of, sulfonamides (SAs) be developed since they are widely used in animal husbandry and aquaculture. We developed a paper-based multicolor colorimetric aptasensor to
Meiling Ping, Wenchao Lv, Chen Yang, Qian Chen, Zongwen Wang, Fengfu Fu   +5 more
doaj   +1 more source

Sulfonamides in Tomato from Commercial Greenhouses Irrigated with Reclaimed Wastewater: Uptake, Translocation and Food Safety

, 2021
The presence of antibiotics in crops is mainly caused by their irrigation with reclaimed wastewater and by the use of organic amendments of animal origin.
R. Camacho-Arévalo, C. García-Delgado, B. Mayans, R. Antón-Herrero, J. Cuevas, M. Segura, E. Eymar   +6 more
semanticscholar   +1 more source

Natural attenuation of sulfonamides and metabolites in contaminated groundwater - Review, advantages and challenges of current documentation techniques.

Water Research
Sulfonamides are applied worldwide as antibiotics. They are emerging contaminants of concern, as their presence in the environment may lead to the spread of antibiotic resistance genes. Sulfonamides are present in groundwater systems, which suggest their
C. F. Ottosen, P. L. Bjerg, Steffen Kümmel, H. Richnow, Peter Middeldorp, Helene Draborg, G. Lemaire, M. Broholm   +7 more
semanticscholar   +1 more source

Metal‐Free Electrochemical Synthesis of Sulfonamides Directly from (Hetero)arenes, SO2, and Amines

Angewandte Chemie, 2020
Sulfonamides are among the most important chemical motifs in pharmaceuticals and agrochemicals. However, there is no methodology to directly introduce the sulfonamide group to a non‐prefunctionalized aromatic compound.
Stephan P. Blum, T. Karakaya, D. Schollmeyer, Artis Klapars, S. Waldvogel   +4 more
semanticscholar   +1 more source

Dual‐Interface‐Dominant Cathode Architectures Enabling Fast Sulfur Redox and Stable Interfaces in All‐Solid‐State Li‐S Batteries

Advanced Functional Materials, EarlyView.
An optimized carbon host nanostructure enables a dual‐interface‐dominant architecture in sulfur cathodes of solid‐state Li‐S batteries by selectively forming sulfur|carbon and sulfur|solid electrolyte interfaces. This tailored interfacial configuration accelerates sulfur redox kinetics by establishing enriched Li+/e– transport networks, while ...
Zhao Yang, Yuxiao Zhang, Yihong Liu, Geng Xie, Yu Dou, Jeremy Dawkins, Lijia Liu, Yixiang Wang, Lingzi Sang, Mohsen Shakouri, Sixu Deng, Karim Zaghib, Tsun‐Kong Sham, Xia Li   +13 more
wiley   +1 more source

Small‐Molecule Activation of mRNA Translation by Click‐to‐Release Reaction in Cells

Angewandte Chemie, EarlyView.
A new method to control mRNA activity using bioorthogonal click‐to‐release reactions is presented. The 5′ cap is modified with a trans‐cyclooctene (TCO) that quickly reacts with hydroxyaryl‐tetrazines and efficiently releases the native cap 0. TCO‐capped mRNAs are initially translationally inactive but can be activated with non‐toxic, cell‐permeable ...
Tess Vosman, Friedrich Burba, Martin Sumser, Milan Vrabel, Hannes Mikula, Andrea Rentmeister   +5 more
wiley   +2 more sources