Oxygen Availability in Polyethylene Glycol Solutions and Its Implications in Plant-Water Relations

Root growth and oxygen relations at low water potentials. Impact Of oxygen availability in polyethylene glycol solutions

Polyethylene glycol (PEG), which is often used to impose low water potentials (psiw) in solution culture, decreases O2 movement by increasing solution viscosity. We investigated whether this property causes O2 deficiency that affects the elongation or metabolism of maize (Zea mays L.) primary roots. Seedlings grown in vigorously aerated PEG solutions at ambient solution O2 partial pressure (pO2...

Magnetorheological and Volumetric Properties of Starch and Polyethylene Glycol Solutions in the Presence of NiO Nanoparticles

The effect of NiO nanoparticles on the rheological and volumetric properties of dilute solutions of starch-NaOH-H2O, PEG400-PEG2000 and PEG400-PEG6000 were investigated. Achieve this aim requires to prepare the stable nanofluids. Therefore, nanoparticles of NiO were added to these solutions and dispersed by a shaker and an ultrasonic bath for making the homogeneous nanofluids. The UV-Vis spectr...

Comparison of the Efficacy and Safety of Polyethylene Glycol and Senna Solutions in Colon Preparation before Colonoscopy in Dogs

Objective- The aim of this study was to evaluate the efficacy and safety of senna as an alternative or adjunct to polyethylene glycol (PEG) solution in dogs using colonoscopy and radiography.Design - Experimental study.Animals - 20 adult mongrel healthy dogs.Procedures- Dogs were randomly allocated to receive 1 of 4 different bowel preparation regimens including PEG, senna or ...

Bacterial survival in suspension in polyethylene glycol solutions.

Water potential of aqueous polyethylene glycol.

Water potential (Psiomega) values were determined for aqueous colloids of four molecular sizes of polyethylene glycol (PEG) using freezing-point depression and vapor-pressure deficit methods. A significant third-order interaction exists between the method used to determine Psiomega, PEG molecular size, and concentration. At low PEG concentrations, freezing-point depression measurements result i...