This study presents a technoeconomic analysis (TEA) for a novel ionic polybutylene adipate--terephthalate (PBAT), CPBAT, as a paper coating material, showcasing excellent water and oil resistance. This TEA determined total capital investment, operating costs, and minimum selling prices for a production capacity of 1,000 kg of CPBAT per day. The minimum selling prices of CPBAT coated on Kraft paper (CPBAT-K) and CPABT coated on starch-coated Kraft paper (CPBAT-S) are estimated to be $1.
View Article and Find Full Text PDFAdvanced recycling offers a unique opportunity for the circular economy, especially for mixed and contaminated plastics that are difficult to recycle mechanically. However, advanced recycling has barriers such as poor selectivity, contaminant sensitivity, and the need for expensive catalysts. Reported herein is a simple yet scalable methodology for converting mixed polyethylene (high-density and low-density polyethylene recycled polyethylene) into upcycled waxes with up to 94% yield.
View Article and Find Full Text PDFPolyethylene-, polyvinylidene chloride-, and per- and polyfluoroalkyl substance-coated paper generate microplastics or fluorochemicals in the environment. Here, we report an approach for the development of oil-resistant papers using an environmentally friendly, fluorine-free, water-dispersible poly(dimethylsiloxane) (PDMS) coating on kraft paper. Carboxylic-functionalized PDMS (PDMS-COOH) was synthesized and subsequently neutralized with ammonium bicarbonate to obtain a waterborne emulsion, which was then coated onto kraft paper.
View Article and Find Full Text PDF1,3,4-Oxadiazole moiety is a crucial pharmacophore in many biologically active compounds. In a typical synthesis, probenecid was subjected to a sequence of reactions to obtain a 1,3,4-oxadiazole-phthalimide hybrid () in high yields. The NMR (H and C) spectroscopic analysis initially confirmed the structure of .
View Article and Find Full Text PDFNew -alkyl phthalimide - and -benzyl - analogs of 5-(2-phenylquinolin-4-yl)-1,3,4-oxadiazole-2-thiol () were prepared by reacting with -bromoalkylphthalimide and CF-substituted benzyl bromides in excellent yields. Spectroscopic techniques were employed to elucidate the structures of the synthesized molecules. The inhibition activity of newly synthesized molecules toward MAO-A, MAO-B, and AChE enzymes, was also assessed.
View Article and Find Full Text PDFSulphonamide and 1,3,4-oxadiazole moieties are present as integral structural parts of many drugs and pharmaceuticals. Taking into account the significance of these moieties, we herein present the synthesis, single-crystal X-ray analysis, DFT studies, and -amylase inhibition of probenecid derived two -alkylphthalimide-oxadiazole-benzenesulfonamide hybrids. The synthesis has been accomplished in high yields.
View Article and Find Full Text PDFDirect acting antiviral drugs (DAADs) are becoming therapeutics of choice for the treatment of viral infections. Successful development of anti HIV and HCV drugs by targeting the viral proteases has provided impetus for discovering newer DAADs. Dengue virus (DENV) protease, which is composed of two nonstructural proteins, NS2B and NS3pro, can be likewise exploited for discovering new anti-dengue therapeutics.
View Article and Find Full Text PDFElastase is the only enzyme that has the capability to degrade elastin and collagen, the two proteins essential for skin and bones. The synthesis of some densely substituted piperidines functionalized with the trifluoromethyl group (4a-j) was carried out. The newly prepared compounds were subjected to elastase enzyme inhibitory potential and antioxidant activity assays.
View Article and Find Full Text PDFBackground: Cancer is a far-reaching and lethal but curable disease. Researchers have investigated numerous anticancer agents with only a few commercially available effective drugs which are very costly.
Objective: Herein, we report the synthesis , characterization and anti cancer assays of a series of novel dithiocarbamates derivatives.