Effect of the extraction solvent on the anticorrosion of mild steel in an acid medium by two green inhibitors
Chem Biodivers. 2024 Feb 25:e202301915. doi: 10.1002/cbdv.202301915. Online ahead of print.ABSTRACTTwo green inhibitors extracted from an endemic species (Origanum grosii (Og)) using two solvents of different polarity (water and ethanol), OgW (aqueous extract) and OgE (ethanolic extract), were used for the anticorrosion of mild steel (M steel) in a 1M HCl medium. Anticorrosive performance of OgW and OgE was assessed using electrochemical techniques, weight loss method and SEM/EDX surface analysis. The results show that OgW achieves a maximum inhibition efficiency of 92% and that the extract in aqueous medium is more effici...
Source: Chemistry and Biodiversity - February 25, 2024 Category: Biochemistry Authors: Abdellah Elyoussfi Hafssa El Hassouni Fouad Benhiba Halima Outada Hassan Amhamdi Abdelkader Zarrouk Abderrahmane Romane Ali Dafali Source Type: research
Deciphering the Absolute Con figuration of Murgantiol Isomers in the Pheromone Blend of the Rice Stink Bug, Mormidea v-luteum (Hemiptera, Pentatomidae)
Chem Biodivers. 2024 Feb 25:e202301860. doi: 10.1002/cbdv.202301860. Online ahead of print.ABSTRACTThe males-produced pheromone blend of the Mormidea v-luteum (Hemiptera, Pentatomidae) consists in two isomers of zingiberenol (1) and three of murgantiol (2). While the absolute configuration of the zingiberenol isomers has been described, the configurations of the murgantiol isomers remained unexplored. So, our objective was to identify the absolute configuration of the murgantiol isomers (2a-c) in the pheromone blend. To achieve this, we initially performed dehydration of the natural extract followed by enantiomeric resolut...
Source: Chemistry and Biodiversity - February 25, 2024 Category: Biochemistry Authors: Jo ão P A Souza Dougas J Melo Antonioni A C Moliterno Leonardo Figueiredo Paulo H G Zarbin Source Type: research
2,5- Thienylene-Strapped [26]Hexaphyrin as Multifunctional Chemosensor for Hg2+, Cu2+, and F- ions
Chem Biodivers. 2024 Feb 24:e202301727. doi: 10.1002/cbdv.202301727. Online ahead of print.ABSTRACTThe sensing behavior of 2,5-thienylene-bridged tetrakis(2,6-dichlorophenyl)-[26]hexaphyrin (2) towards various metal ions and anions were investigated by UV-vis and fluorescence spectroscopies. The molecular sensor using this strapped hexaphyrin (2) displayed highly selective and sensitive colorimetric responses to Cu2+ and Hg2+ in MeOH/THF. The spectral changes are distinctive enough in the visible region of the spectrum to enable naked-eye detection. The detection limits of Cu2+ and Hg2+ using this chemo-sensor in a mixed M...
Source: Chemistry and Biodiversity - February 24, 2024 Category: Biochemistry Authors: Bulti Abdisa Kerayu Chen Hsuing Hung Anil Hsuing Kumar Source Type: research
Curcumin - Bioavailability Enhancement by Prodrug Approach and Novel Formulations
Chem Biodivers. 2024 Feb 24:e202302030. doi: 10.1002/cbdv.202302030. Online ahead of print.ABSTRACTCurcumin, is a diverse natural pharmacological agent involved in various signal transduction mechanisms. Therapeutically, this potent molecule facing different challenges and issues related to low bioavailability due to its poor aqueous solubility, less permeability, faster elimination and clearance. Experts in synthetic chemistry and pharmaceuticals are continuously sparing their efforts to overcome these pharmacokinetic challenges by using different structural modification strategies and developing novel drug delivery syste...
Source: Chemistry and Biodiversity - February 24, 2024 Category: Biochemistry Authors: Narsaiah Chelimela Rajasekhar Reddy Alvala Shobha Rani Satla Source Type: research
2,5- Thienylene-Strapped [26]Hexaphyrin as Multifunctional Chemosensor for Hg2+, Cu2+, and F- ions
Chem Biodivers. 2024 Feb 24:e202301727. doi: 10.1002/cbdv.202301727. Online ahead of print.ABSTRACTThe sensing behavior of 2,5-thienylene-bridged tetrakis(2,6-dichlorophenyl)-[26]hexaphyrin (2) towards various metal ions and anions were investigated by UV-vis and fluorescence spectroscopies. The molecular sensor using this strapped hexaphyrin (2) displayed highly selective and sensitive colorimetric responses to Cu2+ and Hg2+ in MeOH/THF. The spectral changes are distinctive enough in the visible region of the spectrum to enable naked-eye detection. The detection limits of Cu2+ and Hg2+ using this chemo-sensor in a mixed M...
Source: Chemistry and Biodiversity - February 24, 2024 Category: Biochemistry Authors: Bulti Abdisa Kerayu Chen Hsuing Hung Anil Hsuing Kumar Source Type: research
