A novel chemiluminescence immunoassay based on luminol-modified gold nanoclusters ([email protected]@luminol) was developed for simultaneous detection of tetrabromobisphenol A bis(2-hydroxyethyl) ether (TBBPA-DHEE) and tetrabromobisphenol A mono(hydroxyethyl) ether (TBBPA-MHEE), an important der...

A competitive immunosensor was established using an electrochemical amperometric strategy for sensitive detection of tetrabromobisphenol A bis(2-hydroxyethyl) ether (TBBPA-DHEE), an important derivative of tetrabromobisphenol A (TBBPA). In this system, the amplified electrochemical signal toward...

2-Hydroxyethyl methacrylate (HEMA),a tooth filling material, was proven to have toxic effects on different cell types, including human gingival fibroblasts (HGFs), and to be able to influence odontoblast vitality. The aim of the present study was to assess the differential transcriptome modulati...

Highly porous poly(2-hydroxyethyl methacrylate-co-N,N′-methylenebisacrylamide) (poly(HEMA-co-MBAA)) frameworks were prepared from oil-in-water high internal phase emulsions (HIPEs). After subsequent functionalization through a two-step synthetic pathway involving i) activation of the hydroxyl f...

The formation of a thrombus is a key event in thromboembolic disorders, that contribute to high mortality and morbidity in affected patients. In the present study, we synthesized a library of novel substituted 3,3-dibutyl-8-methoxy-2,3-dihydrobenzo [b] [1,4] thiazepin-4(5H)-one derivatives which...

The chemical reactions occurring during the melt blending between a dibutyl maleate functionalized polyolefin (POF) and poly(ethylene terephthalate) (PET) in the presence of Zn(OOCCH3)2·2H2O were studied as a function of blending conditions, such as the preliminary drying of PET, the presence o...

Poly(2-hydroxy-3-phenoxypropylacrylate, 4-hydroxybutyl acrylate, dibutyl maleate) membrane was synthesized by UV curing method in our laboratory for the first time. When above-mentioned monomers were in the weight ratio of 4:4:2, the membrane not only had perfect permeation property but also had...

In this study the cloud point pressure for the solubility of copolymers of vinyl acetate and dibutyl maleate in supercritical carbon dioxide were measured and modeled. The copolymers investigated have different molecular weights, with varying structures. The cloud point pressure data were modele...

A study has been made of the copolymerization of styrene and butyl methacrylate with diethyl maleate and dibutyl furmarate in the presence of oxygen. It is shown that diethyl maleate and dibutyl fumarate participate in oxidative copolymerization not as comonomers, but as chain transfer agents. T...

A simple, precise and stability-indicating HPLC method was developed and validated for the simultaneous determination of bisoprolol fumarate and hydrochlorothiazide in pharmaceutical dosage form. The method involves the use of easily available inexpensive laboratory reagents. The separation was ...

The kinetic parameters of the oxidative copolymerization of styrene, butyl methacrylate and butyl acrylate with dibutyl fumarate have been found. The mechanism of the process is examined and the influence of the nature of the monomer on the length of the material chains of the polyperoxides form...

Efficient 5-endo and 6-endo oxidative radical cyclizations on enamide systems are described using nBu3SnH and dilauroyl peroxide both as initiator and oxidant. Dibenzoyl peroxide and dicumyl peroxide were also tested in the same reaction and the product yields were very similar to those obtained...

It has been reported that ethylene glycol produces a positive interference in the triglyceride assay on the DuPont aca discrete analyzer. The sensitivity of this method for ethylene glycol was exploited to develop a rapid and convenient method for detecting and quantitating ethylene glycol in se...

The development of protein chips has suffered from problems regarding long-term protein stability and activity. We present a protein sensor surface for immunodetection that is prepared by a DNA-directed protein immobilization method on a mixed self-assembled monolayer (SAM). By this approach, an...

A new method for the synthesis of 1,3-disubstituted benzimidazole derivatives was developed using aza-Michael addition. The target compounds were synthesized in good yields and purity and tested on isolated hepatocytes for their toxicity and antioxidant activity. The antioxidant properties of th...

In the course of our study on the hepatotoxicity of 1,3-disubstituted-1H-benzo[d]imidazole-2(3H)-thiones, we generated and characterized the radical anion of methyl 3-[3-(3-methoxy-3-oxopropyl)-5-nitro-2-thioxo-2,3-dihydro-1H-benzimidazol-1-yl]propanoate which shows the highest toxicity within t...

In this work, the isobaric vapor–liquid equilibrium (VLE) for the pseudo-binary systems isoamyl alcohol + isoamyl propionate and propionic acid + isoamyl propionate at three different pressures is reported. Measurements were done in a dynamic equilibrium cell (Fischer Labodest VLE 602) at 50.00...

In this work, the production of isoamyl propionate by esterification of propionic acid with isoamyl alcohol, via continuous reactive distillation was studied. Conceptual design of the reactive distillation system was conceived from the construction of conventional and reactive residue curves map...

Improvements are described for the 2,4-xylenol spectrophotometric method for nitrate that reduce the elapsed and working time. Diluted (22 + 3) sulfuric acid is added quickly to the sample solution while the flask is immersed in tap water. 2,4-xylenol solution is added, the 6-nitro-2,4-xylenol f...

An improved method is proposed for the spectrophotometric determination of nitrate with 2,4-xylenol. The sample in aqueous (1.7 + 1 ) sulfuric acid is treated with 2,4-xylenol to produce 6-nitro-2,4-xylenol which is distilled into an ammoniacal water—isopropanol mixture. The intense yellow colo...