Sorption of chlorotoluron in ammonium sulfate, urea and atrazine multi-solutes system was investigated by batch experiments. The results showed application of nitrogen fertilizers to the soil could affect the behavior of chlorotoluron. At the same concentration of N, sorption of chlorotoluron de...

Chlorotoluron is a phenylurea herbicide that is widely used for controlling grass weeds in the land of cereal, cotton and fruit production. However, extensive use of this herbicide may lead to its accumulation in ecosystems, thus inducing the toxicity to crops and vegetables. To assess chlorotol...

Chlorotoluron is a pesticide that is moderately absorbed and fairly mobile and leaching in soils. Dissolved organic matter (DOM) plays a critical role in affecting the environmental behavior of pesticides. In this study, we report the effect of DOM extracted from sludge (SL) and straw (ST) on ch...

Chlorotoluron (Chl) is a phenylurea herbicide and is widely used for controlling weeds. While it has brought great benefits to crop production, it has also resulted in contamination to ecosystem. In this study, we investigated accumulation of chlorotoluron (Chl) and biological responses of wheat...

Knowledge about the impact that various organic amendments have on the behavior of pesticides in soils is essential when assessing groundwater contamination risk. The aim of this study was to evaluate the impact of a compost amendment on chlorotoluron mobility in the A horizon of the Luvic Chern...

This is the first designed peptide with a combination of a branched β-carbon ΔVal and a ΔPhe residues. The peptide Z-ΔVal-Val-ΔPhe-Ile-Ome was synthesized in solution phase. Single crystals were grown by slow evaporation from its solution in acetone–water mixture at 25 °C. The crystals be...

Metalloprotease PT121Y114S, an effective catalyst for Z-aspartame synthesis under the substrate (Z-Asp:l-Phe-OMe) molar ratio of 1:5, was obtained previously. Herein, a computational strategy combining molecular dynamics simulation of the enzyme-substrate complex with binding free energy (ΔG) c...

Iron(II) complexes, (Et4N)2[Fe(ZcysAlaAlacysOMe)2] (1) and (Et4N)2[Fe(ZcysAlaProcysOMe)2] (2), were synthesized by reaction of the corresponding SH-free peptides with (Et4N)2[Fe(StBu)4]. 1 and 2 give redox potentials at −0.49 and −0.58 V versus SCE in acetonitrile, respec...

UCHL1 is a 223 amino acid member of the UCH family of deubiquitinating enzymes (DUBs), found abundantly and exclusively expressed in neurons and the testis in normal tissues. Two naturally occurring variants of UCHL1 are directly involved in Parkinson’s disease (PD). Not only has UCHL1 been lin...

A series of new octahedral Mn(I) complexes fac-(CO)3(depe)Mn—Z (depe = 1,2-bis(diethylphosphino)ethane, Z = H, OTs, OMe, OC(O)OMe, NCO, Cl, Br, N3) have been prepared and characterized, particularly with respect to their infrared spectra. The variations observed in the carbonyl stretching frequ...

The proteolytic extract obtained from the latex of Funastrum clausum (Jacq.) Schlechter (Asclepiadaceae), a South American climbing plant, was assayed as a novel catalyst for peptide synthesis and compared with commercial papain under the same conditions. After immobilization on polyamide, the s...

In the development of inactivated or attenuated viral vaccines for cultured fish, viral titers harvested from the cultured cells would be the most important factor for the determination of vaccine's cost effectiveness. In this study, we hypothesized that the lengthening of cell survival tim...

We have investigated the mechanism of chiral induction in the asymmetric [2,3]-Wittig rearrangement of allyl benzyl ether in the presence of a bis(oxazoline) chiral ligand [(S,S)-Box–tBu] by comparing the reaction of both enantiomers of monodeuterated benzyl ether 1a–d. As a result, we found t...

A convenient, one-pot synthesis of 2,3-diarylindoles 4 is described via a bis-Suzuki palladium-catalyzed cross coupling of 2,3-dihalo-1-(phenylsulfonyl)indoles 1 with arylboronic acids 2, followed by cleavage of the N-protecting group to give 4. The anti-inflammatory drug indoxole (4c) is prepar...

Interest in 2,3‐bis(p‐methoxyphenyl)imidazo[1,2‐a]‐pyrimidine as a potent, orally active, anti‐inflammatory agent required a method for its determination in serum, urine, and feces to permit studies of its absorption, metabolism, and excretion. A simple, rapid, sensitive, and specific proce...

Melamine (MA) is a significant raw material for industry and home furnishing, and an intermediate for pharmacy. However it is also a hazardous material when being added to food as a protein substitute due to the high nitrogen content. In this study, the behavior of MA in activated sludge was inv...

Both “turn-on” and “turn-off” fluorescent probe for the determination of melamine have been developed by tuning the inner filter effect (IFE) from CdTe quantum dots (QDs) to gold nanoparticles. Because of the melamine-induced aggregation of gold nanoparticles, the first absorption peak of th...

Multiple methods have been published to detect melamine, only a few offer sensitivities below 50 nM with complicated procedures and sophisticated equipments. We demonstrate here a simple, rapid and lower-cost assay with high sensitivity for the melamine detection in milk samples using sulfanilic...

The main aim of this work was to investigate the flame retarded efficiency of melamine phosphate (MP), melamine phosphite (MPi) and melamine hypophosphite (MHP) on poly(butylene succinate) (PBS) composites. The flame retardant, thermal degradation and combustion properties of PBS composites were...

Intrinsically fluorescent polymer nanoparticles (F-PNPs) were synthetized from 2-hydroxy-5-methylisophthalaldehyde and melamine by solvothermal method. F-PNPs can emit strong yellow green fluorescence at 542 nm without the conjugation to any external fluorescent agent and surface modification. O...