Aminophosphine oxides and aminophosphonates are, in general, very stable compounds. However, following phosphorus-carbon bond cleavage in aqueous acidic media these compounds sometimes decompose to phosphonic acids derivatives (P(III)). Despite some controversy in the literature, careful analysis supported by theoretical studies leads to the conclusion that decomposition to P(III) derivatives proceeds via an elimination reaction.
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http://dx.doi.org/10.1007/s00894-008-0292-1 | DOI Listing |
Exp Eye Res
January 2025
School of Optometry and Vision Science, UNSW Sydney, Australia. Electronic address:
Aim: Previous studies have demonstrated that contact lenses coated with the antimicrobial cationic peptide Mel4, a derivative of melimine, can reduce the occurrence of keratitis. However, the antimicrobial activity of Mel4 weakened over time due to its susceptibility to proteolytic degradation. Oligo-N-substituted glycine peptoids such as TM5 and TM18 possess antimicrobial properties and are resistant to proteolytic breakdown.
View Article and Find Full Text PDFInt J Mol Sci
October 2024
Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland.
For years, gold nanoparticles (AuNPs) have been widely used in medicine and industry. Although various experimental procedures have been reported for their preparation and manipulation, none of them is optimal for all purposes. In this work, we engineered the N-terminus of the pIII minor coat protein of bacteriophage (phage) M13 to expose a novel HLYLNTASTHLG peptide that effectively and specifically binds gold.
View Article and Find Full Text PDFJ Org Chem
October 2024
Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Jiangsu Province Key Laboratory of Green Biomass Based Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
Alcohols are the most commercially abundant, synthetically versatile and operationally convenient functional groups in organic chemistry. Therefore, a strategy that utilizes hydroxy-containing compounds to develop novel bond disconnection and formation process would achieve molecular diversity. Herein, a deconstructive strategy for the generation of quinoxalin-2(1H)-one derivatives has been developed from alcohol precursors via oxy-radical-induced β-fragmentation.
View Article and Find Full Text PDFAdv Protein Chem Struct Biol
July 2024
Research Laboratory in Bionanomaterials, LPbio, Department of Chemistry, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil.
Several species during evolution suffered random mutations in response to various environmental factors, which resulted in the formation of venom in phylogenetically distant species. The composition of the venom of most species is poorly known. Snake venom is well characterized while most species have poorly known composition.
View Article and Find Full Text PDFHeliyon
May 2024
State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China.
Snake venoms, comprising a complex array of protein-rich components, an important part of which are snake venom metalloproteinases (SVMPs). These SVMPs, which are predominantly isolated from viperid venoms, are integral to the pathology of snakebites. However, SVMPs derived from elapid venoms have not been extensively explored, and only a handful of SVMPs have been characterized to date.
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