Animal wastes are a major contributor of nutrients and enteric microorganisms to surface water and ground water. Polyacrylamide (PAM) mixtures are an effective flocculent, and we hypothesized that they would reduce transport of microorganisms in flowing water. After waste water running at 60.0 1 min(-1) flowed over PAM + Al2(SO4)3, or PAM + CaO in furrows, total coliform bacteria (TC) and fecal...

Genetic diversity in 30 genotypes of Pumpkins was collected from unexplored mountainous areas Khyber Pakhtunkhwa, Pakistan investigated through biochemical characterization. For biochemical characterization, Sodium Dodecyl Sulphate Polyacrylamide Gel Electrophoresis carried out. The seed proteins were resolved on 7.5% and 15% polyacrylamide gel. A total 35% genetic disagreement observed th...

Excessive water production in the oil field is major difficulty for petroleum industry. Remedial techniques need to be applied control this excess considering health, safety, and environmental issues improve reservoir's economic productive life. In study polymer gel system comprising partially hydrolyzed polyacrylamide (PHPA) organic cross-linkers (Hydroquinone Hexamethylene tetramine) were pre...

The hybrid hydrogel materials meet important social challenges, including the photocatalytic purification of water and bio-medical applications. Here, we demonstrate two scenarios polyacrylamide-TiO2 (PAAm@TiO2) composite design using calcium alginate (Alg-Ca) or Keplerate-type polyoxometalates (POMs) {Mo132} tuning polymer network structure. Calcium molding allowed us to produce polyacrylamide...

The synthesis and physicochemical properties of hydrogels with interpenetrated physical chemical networks were considered in relation to their prospective application as biomimetic materials biomedicine bioengineering. study was focused on combined based natural polysaccharide—calcium alginate (CaAlg) a synthetic polymer–polyacrylamide (PAAm). series varying proportions among polyacrylamide hav...

Water-soluble biological macromolecules can be weakly aligned by dissolution in a strained, hydrated gel such as cross-linked polyacrylamide, an effect termed 'strain-induced alignment in a gel' (SAG). SAG induces nonzero nuclear magnetic dipole-dipole couplings that can be measured in high-resolution NMR spectra and used as structural constraints. The dependence of experimental 15N-1H dipolar ...

OBJECTIVE To determine residual acrylamide in medical polyacrylamide hydrogel by high performance liquid chromatography tandem mass spectroscopy (HPLC-MS). METHODS After (13)C3 labeled acrylamide was added, the sample was extracted with water and then cleaned up with Extrelut 20. The polyacrylamide hydrogel sample and 20 clinical cases were analyzed by HPLC-MS/MS and isotope dilution quantify...

fluid properties with constant improvement in efficiency have been noticeable as important criteria in drilling operation. the main drilling fluid properties highly depend on utilization of new polymers with high efficiency in drilling fluid composition. in this paper, the performance of a new polymer, called partially hydrolyzed polyacrylamide polymer (phpa), is studied which has recently ente...

Background and Objectives: Making stacking gels for polyacrylamide gels in the laboratory by conventional methods is laborious and time consuming. Considering the role of temperature in polyacrylamide gels with respect to electrical resistance and viscosity, we assumed that decreasing the temperature would cause an increase in electrical resistance and viscosity.  Ultimately, a downward tempera...