OBJECTIVES This study determined the difference in the location of the caries dye staining endpoint of 1% Acid Red dye in propylene glycol versus that of 1% Acid Red dye in polypropylene glycol. METHODS Freshly extracted permanent molar crowns with primary occlusal carious lesions were chisel-split axially to expose the lesion in cross-section on both halves. One half was stained with propyle...

emptied and washed, and the 24h efflux of inulin was determined; it is plotted against the final swelling ratio from the experiment in which the sac was stretched. An unstretched control is also included. In a similar unstretched sac, the half-time of raffinose escape was I4Omin. Clearly inulin escapes faster than the polyethylene glycol of comparable molecular weight at all porosities, but at ...

A short, monodisperse additive (octa(ethylene glycol) monophenyl ether) functions to suppress aggregation of thermally and chemically denatured lysozyme. Control studies with shorter and non-amphiphilic derivatives revealed that the amphiphilic structure is essential, and octa(ethylene glycol) is nearly the minimum chain length for amphiphilic poly(ethylene glycol)s to stabilize proteins.

Results Analytical results are shown below. Figure 1 shows, from the top, the TIC data of ethylene glycol, diethylene glycol, and triethylene glycol. The commercial reagents were analyzed without modification. The results showed impurities in each sample. Since the reagents were purchased a few years ago, the impurities detected were divided into two types: original components and decomposition...

objective: due to recent advances in nanotechnology it is now possible to accumulate high atomic-number nanomaterial such as gold nanoparticles (gnps) in cancerous cells and take advantage of their absorbed dose enhancement property as radiosensitizing agents. this study aimed to investigate the absorbed dose enhancement factor due to the presence of pegylated gnps under the irradiation of an m...

pigeonpea (cajanus cajan (l) millsp.) is a drought tolerant legume widely grown in the arid and semi-arid tropics of the world which possesses a deep and extensive root system that succors a number of important physiological and metabolic functions to cope with drought. application of available functional genomics approaches to improve productivity under water deficit requires a better understa...

Poly (ether-block-amide) /poly (ethylene glycol)/ carbon nanotubes mixed matrix membranes have been successfully fabricated using solvent evaporation method to determine the effect of ethylene oxide groups on the performance of produced membranes. The effects of CNTs (2-8 wt%) and PEG (up to 50 wt%)were investigated in both single and mixed gas test setup in different temperature and pressure. ...

background & aim: this study evaluated prevention effect of hydro-alcoholic extract of punica granatum peel ethylene glycol-induced nephrolithiasis in wistar rats. experimental: 20 male wistar rats were randomly divided into 4 equal groups. group i animals served as normal control (a) and received distilled water for 28 days. group ii to iv animals received 1% v/v ethylene glycol (eg) in d...