Results 41 to 50 of about 136,021 (344)

The Anti-Inflammatory Effect of a γ-Lactone Isolated from Ostrich Oil of Struthio camelus (Ratite) and Its Formulated Nano-Emulsion in Formalin-Induced Paw Edema

Molecules, 2021
The ostrich oil of Struthio camelus (Ratite) found uses in folk medicine as an anti-inflammatory in eczema and contact dermatitis. The anti-inflammatory effect of a γ-lactone (5-hexyl-3H-furan-2-one) isolated from ostrich oil and its formulated nano ...
Salah E. M. Eltom, Ahmed A. H. Abdellatif, Hamzah Maswadeh, Mohsen S. Al-Omar, Atef A. Abdel-Hafez, Hamdoon A. Mohammed, Eiman ME. Agabein, Ibrahim Alqasoomi, Salem A. Alrashidi, Mohammed S. M. Sajid, Mugahid A. Mobark   +10 more
doaj   +1 more source

Convergence of a meshless numerical method for a chemotaxis system with density-suppressed motility [PDF]

arXiv, 2023
This article studies a parabolic-elliptic system modelling the pattern formation in E. coli bacteria in response to a chemoattractant known as acylhomoserine lactone concentration (AHL). The system takes into account certain bacterial strains with motility regulation, and the parameters of the equations represent the bacterial logistic growth, AHL ...
arxiv  

Comparison of DC Bead-irinotecan and DC Bead-topotecan drug eluting beads for use in locoregional drug delivery to treat pancreatic cancer [PDF]

, 2010
DC Bead is a drug delivery embolisation system that can be loaded with doxorubicin or irinotecan for the treatment of a variety of liver cancers. In this study we demonstrate that the topoisomerase I inhibitor topotecan hydrochloride can be successfully ...
AL Lewis, AL Lewis, Andrew L. Lewis, Andrew W. Lloyd, C Aliberti, Clare L. Heaysman, G Fiorentini, Gary J. Phillips, GL Beretta, J Kettenbach, J Pollina, JP Stevenson, K Malagari, M Keese, M Potmesil, Milan D. Antonijevic, MV Gonzalez, Richard E. J. Forster, RR Taylor, RT Poon, S Baltes, S O’Reilly, SA Strel’tsov, SH Akbas, Sharon A. Small, T Baere de, T Lesimple, Wendy Macfarlane, Y Saito, Y Tang, Yiqing Tang   +30 more
core   +4 more sources

Optimized nanodevice fabrication using clean transfer of graphene by polymer mixture: Experiments and Neural Network based simulations [PDF]

arXiv, 2023
In this study, we investigate both experimentally and computationally the molecular interactions of two distinct polymers with graphene. Our experimental findings indicate that the use of a polymer mixture reduces the transfer induced doping and strain in fabricated graphene devices as compared to conventional single polymer wet transfer. We found that
arxiv  

Determination of the urinary aglycone metabolites of vitamin K by HPLC with redox-mode electrochemical detection [PDF]

, 2005
We describe a method for the determination of the two major urinary metabolites of vitamin K as the methyl esters of their agyclone structures, 2-methyl-3-(3-3-carboxymethylpropyl)-1,4-naphthoquinone (5C-side-chain metabolite) and 2-methyl-3-(5-carboxy-3-
Edwards, C, Harrington, DJ, Hodges, SJ, Savidge, GF, Shearer, MJ, Soper, R   +5 more
core   +1 more source

Reduction of ketopantoyl lactone to D-(-)-pantoyl lactone by microorganisms.

Agricultural and Biological Chemistry, 1984
The ability to reduce ketopantoyl lactone added to the culture medium to pantoyl lactone was surveyed in a variety of microorganisms. Many of the microorganisms including molds, yeasts, bacteria, actinomycetes and basidiomycetes exhibited this ability. The ratios of D-(—)- and L-(+)-isomers of the yielded pantoyl lactone, however, showed no relation to
Sakayu Shimizu, Hiroyuki Hata, Hideaki Yamada   +2 more
openaire   +2 more sources

Identification of QuiP, the Product of Gene PA1032, as the Second Acyl-Homoserine Lactone Acylase of Pseudomonas aeruginosa PAO1 [PDF]

, 2006
The relevance of the acyl homoserine lactone (acyl-HSL) quorum signals N-3-oxododecanoyl-homoserine lactone (3OC12HSL) and N-butanoyl-homoserine lactone to the biology and virulence of Pseudomonas aeruginosa is well investigated.
Huang, Jean J., Leadbetter, Jared R., Petersen, Ashley, Whiteley, Marvin   +3 more
core   +1 more source

Biocatalytic synthesis of lactones and lactams [PDF]

Chemistry – An Asian Journal, 2018
AbstractCyclic esters and amides (lactones and lactams) are important active ingredients and polymer building blocks. In recent years, numerous biocatalytic methods for their preparation have been developed including enzymatic and chemoenzymatic Baeyer–Villiger oxidations, oxidative lactonisation of diols, and reductive lactonisation and lactamisation ...
Frank Hollmann, Selin Kara, Diederik J. Opperman, Yonghua Wang   +3 more
openaire   +6 more sources

A Concise Total Synthesis of (--)-Maoecrystal Z [PDF]

, 2011
The first total synthesis of (--)-maoecrystal Z is described. The key steps of the synthesis include a diastereoselective Ti^(III)-mediated reductive epoxide coupling reaction and a diastereoselective Sm^(II)-mediated reductive cascade cyclization ...
Cha, Jacob Y., Reisman, Sarah E., Yeoman, John T. S.   +2 more
core   +2 more sources

Structural determination of oleanane-28,13β-olide and taraxerane-28,14β-olide fluorolactonization products from the reaction of oleanolic acid with SelectfluorTM

Acta Crystallographica Section E: Crystallographic Communications
The X-ray crystal structure data of 12-α-fluoro-3β-hydroxyolean-28,13β-olide methanol hemisolvate, 2C30H47FO3·CH3OH, (1), and 12-α-fluoro-3β-hydroxytaraxer-28,14β-olide methanol hemisolvate, 2C30H47FO3·CH3OH, (2), are described.
Megan A. Eadsforth, Linghan Kong, George Whitehead, Iñigo J. Vitórica-Yrezábal, Raymond T. O'Keefe, Richard A. Bryce, Roger C. Whitehead   +6 more
doaj   +1 more source