Global ETD Search
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 133 for “"Detergents"”.
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Electrical detection of atmospheric pollutants and detergents on silicon
Air quality and climate change represent significant challenges today. Many air pollutants consistently exceed exposure levels the World Health Organization (WHO) recommends. Establishing an extensive network of high-quality sensors capable of accurately detecting primary pollutants is essential …
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Ionic Characterization of Laundry Detergents: Implications for Consumer Choice and Inland Freshwater Salinization
… To comparatively characterize the laundry detergents, principal component analysis was employed to identify clusters of similar products. The physical formulation of the products was identified as a marker for their content, with dry formulations (free-flowing and encapsulated powders) …
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Interaction of Detergents and Disinfectants upon Surface Adhered Populations of Escherichia coli and Listeria monocytogenes
… part of a cleaning and disinfection regime. The detergents chosen for assessment were two non-ionic (91/4 - Alcohol Ethoxylate and KCL5 - Polyethoxylated Alcohol), two anionic (LX28 - Sodium Lauryl Sulphate and Nec28 - Sodium Laurylether Sulphate) and two novel bismuth thiols (BisEDT - 1:1 …
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A study of the soil removal and redeposition properties of three commercial detergents from Kenya
… variable is the chemical formulations of the detergents. In developed countries, there is a large variety of detergents to cater for all types of fabrics, and various types and levels of soiling, while in developing countries, the choice is limited to a few varieties. Despite this, there are …
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Interactions of ferriprotoporphyrin IX with neutral lipids and detergents: insights into their role in β-haematin formation
The malaria parasite ingests between 80-100% of the host red blood cell's iron in the form of haemoglobin, which is catabolised to amino acids and ferriprotoporphyrin (Fe(III)PPIX), that it subsequently detoxifies to form the bio crystal, haemozoin. Neutral lipids have been implicated as the …
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Laundry satisfaction of Virginia extension homemakers related to their laundry practices and knowledge about detergents and water quality
Relationships between laundry practices, detergent knowledge, perception of water quality, and satisfaction with laundry results were determined in this study. The mail survey method was used to obtain information from Virginia Extension Homemakers in April 1986. Only respondents who did laundry in …
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A study of detergents and detergent-sanitizers used in in-place cleaning and sanitizing of milk pipe lines on dairy farms
… difficult to maintain in actual practice. Many detergents recommended for circulation cleaning are not suitable for use in all types of farm-in-place installations due to the excessive foaming of the detergents in solution when placed under vacuum. This excessive foaming causes considerable …
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Part I. Determination of Trace Amounts of Anionic Synthetic Detergents Inwater. Part Ii. Determination of Organic Nitro, Nitroso and Azo Compoundswith Copper
Made available in DSpace on 2014-12-05T19:38:07Z (GMT). No. of bitstreams: 1 6303243.pdf: 3501990 bytes, checksum: b8ef411b9ae6b6987c8d7ebfc5c60d06 (MD5) Previous issue date: 1962
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The use of novel mesoporous molecular sieve MCM-41 for the sorption and separation of neutral and overbased sulphonate and phenate lubricant detergents
… overbased and neutral sulphonate and phenate detergents, which were Soxhlet extracted from base oil, characterised by infrared spectroscopy and the results used to predict possible separations of binary detergent mixtures. The sorption properties of the mesoporous and silica gel materials were …
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Deconvolution of Membrane Protein-Detergent Complex Interactions
… excessive aggregation in aqueous solutions. Detergents have been extensively exploited to mitigate this aggregation, and accomplish this by protecting the hydrophobic exterior of the membrane protein with their hydrophobic tails, while the polar heads of the detergents interact with the …
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AN INVESTIGATION OP POSSIBLE IN VITRO METHODS FOR STUDYING EYE IRRITANCY POTENTIAL
… of a range of cationic, anionic and nonionic detergents. The in vitro results were compared with the in vivo irritancy of these compounds in the rabbit eye and the significance of any correlations are discussed. In addition, measurements were made of detergent penetration through the isolated. …
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Identification and Partial Characterization of the Antigens of Anaplasma Marginale (Florida) and Anaplasma Caudatum (Illinois) (Immunoblotting, Hemoparasite, Anaplasmasis)
… and 75 kd antigens were not soluble in nonionic detergents but were soluble in SDS and urea. The 108 and 100 kd antigens were totally soluble in nonionic detergents. The 41 and 47 kd antigens were partially soluble in nonionic detergents, with a portion was only solubilized with SDS or urea. A …
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Protein Thermal Stabilization and Delivery via Adsorption onto Porous Silicas
… the protein release from silica using non-ionic detergents (Triton X-100, Tween 20, 40 and 80). Lactoferrin desorption tests with non-ionic detergents showed a trend for increased Lf recovery with increased detergent hydrophobicity. Triton X-100 and Tween 80 were the best detergents for Lf …
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Study of deposit formation inside diesel injectors nozzles
… the deposit formation of different fuels and detergents. Experiments show that the test procedure can differentiate good detergents from ineffective ones; hence it can be used to pre-screen the detergents and fuels before engine tests. Thus the cost of testing could be reduced substantially. …
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Protein sorting to the apical membrane of epithelial cells
… be partially resistant to solubilisation by mild detergents, which has made the isolation of detergent-resistant membranes (DRMs) the primary method to characterise them biochemically. While a growing number of detergents is being used to prepare DRMs, it is not clear what can be inferred about …
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Efficacy of Detergent Rinse Agents to Remove Salmonella and Shigella spp. from the Surface of Fresh Produce
… types and examined survival of organisms in detergents over time. Strawberries, tomatoes and green leaf lettuce were dip inoculated in a 6-6.5 LOG CFU/ml cocktail of nalidixic acid resistant organisms. After drying, produce were rinsed with either 0.1 % sodium lauryl sulfate (SLS), 0.1% Tween …
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Isolation and Characterization of the Light-Harvesting Proteins and an Investigation of a Protein-Mediated Phospholipid Transfer Activity in Rhodopseudomonas Sphaeroides
… sphaeroides has been achieved in the absence of detergents. Following removal of the photopigments and phospholipids by acetone/methanol extractions the protein is quantitatively solubilized in 6M gua
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Detergent effects on disinfectant susceptibility of Escherichia coli and listeria monocytogenes attached to stainless steel
… susceptible to BAC after treatment with anionic detergents SAS by 0.79 Log10 cfu ml-1, SDS by 0.33 Log10 cfu ml-1 and SLES by 0.22 Log10 cfu ml-1, yet no change in susceptibility was observed with FAE. Following treatment with all detergents both organisms became significantly more susceptible to …
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Olfactory-related receptors : methods towards enabling structural and functional studies
… or in heterologous expression systems. Second, detergents capable of solubilizing and stabilizing these proteins in aqueous solution must be found. Third, the flexible nature of GPCRs can inhibit crystal lattice formation. Methods for overcoming each obstacle were developed. Milligrams of a VNR …
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The effect of alternative detergent builders on the nutrient removal activated sludge sewage treatment process
… two main sources, namely human waste {±60) and detergents {±40) (Heynike and Wiechers, 1986). There is an argument for a ban on phosphate in detergents to reduce the phosphate load on sewage treatment plants and thereby limit phosphate discharges via treated municipal effluent. The removal of …
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