Capsicum (Capsicum annuum L. cv. Aries) is a non-climacteric bell-pepper fruit, exhibiting limited ethylene and respiration levels during ripening. In contrast to climacteric fruit, such as tomato which is largely dependent upon ethylene to ripen, the regulation of non-climacteric ripening is st...

A new family of polyfluoroalkyl-substituted ethylene carbonates is synthesized and tested as additives in lithium-ion cells containing EC:EMC + LiPF6-based electrolyte. The influence of these compounds is investigated in Li1.2Ni0.15Mn0.55Co0.1O2//graphite cells via a combination of galvanostatic...

A solvent mixture of 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) and dichloroacetic acid (DCAA) is used to dissolve difficultly soluble poly(ethylene 2,6-naphthalate) (PEN). Solutions can be diluted and analyzed in a common size-exclusion chromatography (SEC) eluent, HFIP. The HFIP/DCAA mixture is ...

The impact of side chain and midblock length on the solubility of ABA triblock copolymers of fluorooxetane-(ethylene oxide)-fluorooxetane in carbon dioxide is examined. The use of short fluorinated side chains instead of long fluorinated chains prevents issues with bioaccumulation of the degrada...

A new class of fluorotelomers was synthesized via the cotelomerization of ethylene and tetrafluoroethylene (TFE) with 1H,1H,2H,2H-perfluoroalkyl iodides. The telomerization led to ethylene-tetrafluoroethylene (ETFE) cotelomer iodides with the incorporation of ethylene and TFE in the cotelomer ch...

Perfluorobutyl (C4) substituted linear C4-C4 ether linked tri-sodium sulfonate derivatives are designed, synthesized and characterized as alternative substances to perfluoroctanesulfonic acid (PFOS, 1), a well known surfactant used in various industrial and consumer products. The tri-sodium sulf...

One of fluorinated polyimides was synthesized from 2,2′-bis(3,4-dicarboxyphenyl) hexafluoropropane dianhydride (6FDA) and 3,3′-dimethyl-4,4′-diaminodiphenylmethane (DMMDA) by two-steps method, which had good solubility and hydrophilicity. 6FDA-DMMDA polyimide was dissolved in chloroform (CHCl...

Two novel metabolites of benproperine (BPP), 1-[1-methyl-2-[2-(phenylmethyl)phenoxy]ethyl]-3-piperidinol (3-OH-BPP) and 1-[1-methyl-2-[2-(phenylmethyl)phenoxy]ethyl]-4-piperidinol (4-OH-BPP), were confirmed by comparison of retention times and mass spectra with those of synthetic standards using...

The glucuronide metabolites of benproperine were synthesized from mono-hydroxylate metabolites of benproperine that were treated with methyl(2,3,4-tri-O-acetyl-l-O-trichloroacetimidoyl)-α-D-glucopyranurone with BF3 · Et2O as the promoter followed by basic hydrolyzation with Na2CO3. The form of...

The interaction between benproperine (BEN) and human serum albumin (HSA) has been simulatively and experimentally investigated based on docking, fluorometric, thermodynamic, and spectroscopic approach. The blind Autodock docking study first recognized the hydrophobic cavity of HSA at Domain IB a...

Trichosporon cutaneum is an oleaginous yeast capable of fermenting lignocellulosic sugars to produce lipid. Though numerous literature focused on lipid production under the condition of nitrogen source limitation, there is no information about intracellular metabolic changes involved in this pro...

Various Maillard reaction systems were established to investigate the effect of maize bran feruloylated oligosaccharides (FOs) on the formation of both endogenous and exogenous advanced glycation end-products (AGEs) under different pH values. The formation of AGEs and four kinds of dicarbonyl co...

Ab initio molecular computations were carried out on the γl backbone conformation of N-formyl-l-aspartic acidamide and its conjugate base N-formyl-l-aspartatamide at the HF/3-21G level of theory. All side-chain conformations were explored for the parent amino acid diamide and its conjugate base...

A series of novel 5,6-disubstituted ethyl 3-amino-4-cyanothieno[2,3-b]pyridine-2-carboxylates was synthesized. The reaction conditions were thoroughly studied and intermediate ethyl 2-((3,4-dicyanopyridin-2-yl)thio)acetates were successfully isolated in good yields. For all synthesized compounds...

In this research a series of pyranopyrazoles were efficiently synthesized via the one-pot four-component reactions of ethyl acetoacetate, hydrazinehydrate, aldehydes and malononitrile in the presence of Co3O4@SiO2-tNH2 nanocomposites as catalyst. This study offers many advantages including short...

The sublimation of solid gadolinium and thulium triiodides was studied by Knudsen effusion mass spectrometry. The partial vapor pressures [atm] of the monomer and dimer molecules were determined as: lnp(GdI3) = −(32.31 ± 0.18) × 103/T + (21.38 ± 0.21) for 777–946 K; lnp(Gd2I6) = −(38.07 ± 0...

This paper reports a generation of short-pulsed thulium-doped fiber laser (TDFL) in Q-switching operation incorporation of homemade graphene oxide (GO) saturable absorber (SA). The GO SA is embedded with a polymer to form a GO film. A piece of the GO film is integrated into the TDFL cavity for g...

Photo-darkening prevents developing of new applications of rare-earth doped silica fibre lasers or amplifiers operating at wavelengths shorter than 1μm or at any wavelength at high power. The photo-darkening is characterized by a decrease of the laser intensity during amplification. In this art...

This work presents the results of a study of the Tm3+/Tm2+ couple redox potentials vs. Cl–/Cl2 reference electrode at the temperature range (833 to 1073) K in molten equimolar NaCl–KCl and NaCl–2CsCl eutectic by direct potentiometric method. Initial concentrations of TmCl3 in solvents did not...

New lasers and amplifiers based on rare-earth (RE)-doped silica optical fibres need improved spectroscopic performance. In this context, a route of interest consists of embedding RE ions within nanoparticles of composition and structure different from those of silica. In this report, optical fib...