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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 360 for “"Polyacrylamide"”.
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Transverse Isotachophoresis Using Polyacrylamide Gel Electrodes
<p>Separation and isolation of a desired analyte from an impure sample solution containing numerous unwanted interfering agents is the first step of nearly every laboratory test performed in medicine and biology. Nucleic acids are often of particular interest to doctors and researchers, and …
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Polyacrylamide and its derivatives for oil recovery
<p>"Polyacrylamide is an umbrella term used to describe the homo-polymer of acrylamide and the copolymer of acrylamide with a small amount of other monomers. Owing to their superior property on increasing viscosity and gelling ability in the presence of crosslinkers, polyacrylamides has become the …
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Polyacrylamide nanoparticle delivery systems in photodynamic therapy
… delivery system based on nano-sized particles. Polyacrylamide nanoparticles were chosen to deliver photosensitisers due to the chemical and biological inertness of polyacrylamide, in addition to its optical transparency. The porous three-dimensional particles produced from microemulsion …
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The rheological properties of aqueous polyacrylamide solutions
Polyacrylamide solutions are extensively used as chemical additives or processing aids in the manufacturing of paper and paperboard products. In addition, they have been widely used in enhanced oil recovery. In this thesis, an experimental work has been carried out to provide a complete and …
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Complex fluid lubrication mechanics of polyacrylamide surfaces
… and thus contribute to the lubrication behavior. Polyacrylamide hydrogels with different monomer percentage of 5, 7.5, and 10 % and the same monomer to crosslinker ratio were investigated under indentation and sliding experiments to figure out the effect of diffusion properties on the transient …
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Surface mechanics of polyacrylamide hydrogels following wear
… abrasive surface wear are measured. These polyacrylamide hydrogels – cross-linked polymers consisting of 92% water by mass – undergo surface wear, and their surface elastic properties before and after wear are measured. Quasi-static nanoindentations are performed on the surface using a …
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Disc electrophoresis of turkey serum alkaline phosphatase isoenzymes using polyacrylamide gel
Thesis (M.S.)--Michigan State University. Dept. of Poultry Science, 1974
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Mechanical reinforcement of polyacrylamide hydrogels using pristine single-walled carbon nanotubes
<p>Hydrogels have great promise as an innovative biomedical material possessing many advantages such as high water content, porous structure, and excellent biocompatibility. Although hydrogels have been used to develop some successful applications, they commonly do not have sufficient mechanical …
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Depression of pyrite in polymetallic sulfide flotation using chitosan-grafted-polyacrylamide polymers
<p>“In this work, Chitosan-grafted-Polyacrylamides (Chi-g-PAMs) were studied, for the first time, as selective depressants of pyrite in the flotation of base metal sulfides. Fundamental studies of the adsorption behavior of Chi-g-PAM on model sulfide minerals indicated that Chi-g-PAM was more …
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Functional Microperiodic Polyacrylamide Gels Fabricated by Opal Inversion and Direct-Write Processes
Functional three-dimensional microperiodic polyacrylamide hydrogel structures were created and characterized. Submicron to 50 micron periodicities were explored across the structures, the lower end for optical and filtration potential and the larger for cell growth scaffolds. Two synthesis methods …
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Towards ultrahigh-throughput phenotypic screening using microfluidic droplets and functionalised polyacrylamide beads
… biologically inert and microfluidic-compatible polyacrylamide microbeads. We envision this as an ultrahigh-throughput-compatible, robust, abiotic tool for maintaining the genotype-effector (“phenotype”) linkage over several experimental steps (e.g. PCR, in vitro expression, and the assay …
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Polyacrylamide gradient gel electrophoresis for the diagnosis of dysbetalipoproteinaemia (Type III hyperlipidaemia)
Accurate phenotypic diagnosis of this disorder has generally relied on the quantitative analysis of centrifugally isolated VLDL. Analysis of VLDL chemical composition is not widely available due to the expense of acquiring ultracentrifuges and the highly-skilled staff necessary to perform the …
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Scattering properties of polyacrylamide gels and their relation to protein electrophoretic migration
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1994, and Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Physics, 1994.
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Long-arm thiolated polyacrylamide beads and their application in coupling experiments with papain.
Dept. of Chemistry and Biochemistry. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1983 .K747. Source: Masters Abstracts International, Volume: 40-07, page: . Thesis (M.Sc.)--University of Windsor (Canada), 1983.
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Application of Polyacrylamide-based Floc Logs for Turbidity Control at Highway Construction Sites
… practices (BMPs) for the use of anionic polyacrylamide (PAM) based Floc Logs, for turbidity control. Five commercially available types of PAM-based Floc Logs were evaluated in jar tests, using soil excavated from Cato Springs Research Center (CSRC, Fayetteville AR) and six types of clay …
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Polyacrylamide hydrogel friction controlled by time-dependent surface energy due to poroelastic relaxation
… contact area, contact time, and sliding speed of polyacrylamide hydrogel. With a comprehensive understanding of the phenomenon, hydrogels could be designed with targeted friction behavior, and be used to design surfaces for tissue engineering and drug delivery. Polyacrylamide gels were tested to …
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Effects of polyacrylamide (PAM) and gypsum on irrigated and dryland potatoes (Solanum tuberosum L.).
… the effects of irrigation, micronised polyacrylamide (PAM) and gypsum on the growth and yield of 'Ilam Hardy' potatoes in 2001-2002. At the final harvest, tuber yields were similar (59 500 kg ha⁻¹). Environmental factors dominated results, particularly January rainfall, which was 150% …
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Effect of nonionic surfactant (X-100) on the rheological properties of aqueous polyacrylamide solutions
Polyacrylamide solutions are widely used in modern technology as thickening agent, for turbulent reduction and many other uses. They have been extensively used in enhanced oil recovery. In many cases, polyacrylamide comes into contact with surfactants which lead to a change in its rheological …
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