Studies on the microbial transformation of the sesquiterpene endoperoxide artemisitene have revealed that artemisitene was metabolized by Aspergillus niger (NRRL 599) to yield 11-epi-artemisinin, 9β-hydroxydeoxy-11-epi-artemisinin and 9β-hydroxy-11-epi-artemisinnin. These metabolites were char...

Flash vacuum pyrolysis (fvp) of a number of substrates, prepared by hydrogenating adducts derived from dimethoxy- or ethylenedioxy-substituted benzynes and furan, affords isobenzofurandiones through retro-Diels–Alder expulsion of ethylene and C–O bond cleavage of the methoxy or ethylenedioxy g...

The presence of adenine nucleotide translocase (ANT) was found to greatly enhance the partitioning of the ATP analog 2',3'-O-(2,4,6-trinitrophenyl)-adenosine 5'-triphosphate (TNP-ATP) into reduced Triton X-100 micelles. The protein's effect was studied through the quenching o...

The sedimentation coefficients of mixed micelles of Triton X-100 and sphingomyelin have been measured for Triton molar fractions between 0.32 and 0.79. These measurements, together with previously reported diffusion coefficients, are used to calculate the molecular weights of the mixed micelles,...

The derivatives of hydrogenated pyrido[4,3-b]indoles as potential neuroprotectors have been synthesized. The different substituents were introduced into position 8 of the carboline fragment of the molecule: methyl-, methoxy-, fluorine- and chlorine-. Biological tests have shown that all the stud...

Europium fluorescence sensitized by tetracycline, via the formation of an organic chelate, was used for the sensitive detection of tetracycline. The efficiency of the intramolecular energy transfer and of the resulting ion luminescence was studied by fluorescence and thermal lens spectrometry. T...

The clinical treatment of bone tumors usually brings about residual tumor cells and large bone defects after tumor removal surgery. To solve this problem, it is imperative to develop a novel implant with bi-functions for eliminating the residual tumor cells and repairing bone defects. In this st...

The reduced form of TX-100 (RTX-100) has been investigated by a new technique of electrodilatometry (ED). ED is found to be very sensitive to hydrogen-bonded systems and has been applied to investigate simple liquids, selected alcohols, and regular TX-100. In this report, ED is used to study bin...

We have developed an accurate and sensitive method for enzymatically determining phosphatidylcholine (PC) and cholesterol (CHOL) in liposomes. Solubilizing liposomes with a high concentration (80%) of Triton X-100 at 65°C for 5 min led to the complete recovery of the lipids by current assay usi...

A series of metal decorated hydrogenated TiO2 nanofibers (metal-H:TiO2 NFs) are synthesized successfully in this study. It is synthesized by the hydrothermal approach and combined with wet impregnation method in thermal hydrogen reduction. Nine types of metal nanoparticles, Ag, Co, Cr, Cu, Fe, N...

We have used isothermal titration calorimetry (ITC) to study the thermodynamics of Triton X-100 (TX-100), deoxycholate and decyl octaethylene glycol (C10EO8) penetration into bilayers composed of native (ESM) and hydrogenated egg yolk sphingomyelin (DHSM). Light scattering measurements were used...

The micellar solutions of nonionic surfactant Triton X-100 (TX-100) were investigated in the presence of several anionic surfactants, namely sodium 1-butanesulfonate, sodium 1-decanesulfonate, sodium octanoate, sodium perfluorooctanoate, sodium decanoate and sodium alkyl sulphates. The resultant...

In this study, a new ruthenium catalyst was used for the oxidation of biomass derived 5-hydroxymethylfurfural (HMF) under mild conditions, which was prepared by the exchange of Ru3+ with H+ in the structure of the zirconium phosphate (ZrP). The as-prepared ZrP–Ru catalyst showed high catalytic ...

The nitrogen composition of grape musts affects fermentation kinetics and production of aroma and spoilage compounds in wine. It is common practice in wineries to supplement grape musts with diammonium phosphate (DAP) to prevent nitrogen-related fermentation problems. Laboratory strains of Sacch...

Residue levels of azoxystrobin, acrinathrin and kresoxim methyl were determined in zucchini grown in an experimental greenhouse during a two weeks period in which repeated treatments with the three pesticides were applied. Analysis was carried out by using ethyl acetate extraction and gas chroma...

The influence of household washing and boiling processes on the residue levels of acrinathrin, fipronil, kresoxim-methyl and pyridaben in green beans was studied. The study was conducted on green beans samples collected from an experimental greenhouse during a two weeks period after treatment. A...

A series of various poly-substituted benzoxazoles were synthesized starting from readily available carboxylic acids. The method is based on TCT (cyanuric chloride)/microwave acid activation and it is characterized by mild conditions, allowing for a wide range of starting materials and functional...

Previously, we identified CYP53 as a fungal-specific target of natural phenolic antifungal compounds and discovered several inhibitors with antifungal properties. In this study, we performed similarity-based virtual screening and synthesis to obtain benzoic acid-derived compounds and assessed th...

Vascular endothelial growth factor receptor-2 (VEGFR-2) plays a crucial role in tumor angiogenesis, and inhibition of the VEGFR-2 signaling pathway has already become an attractive approach for cancer therapy. In this study, a novel pyrimidine-based derivative 7j was designed as lead compound, a...

Two synthetic peptides containing residues 43–47 and 43–49 of α-gliadin were tested for inhibition of leukocyte migration in 47 patients with celiac disease. In nineteen patients, all on a normal diet, leukocyte migration was inhibited by the peptides and naloxone blocked this effect. In twen...