Ecolab

About: Ecolab is a company organization based out in Northwich, United Kingdom. It is known for research contribution in the topics: Alkyl & Corrosion. The organization has 2860 authors who have published 3193 publications receiving 51478 citations. The organization is also known as: Economics Laboratory.

Adherent foam cleaning compositions

Abstract: The invention is a foam stabilizing composition which is used in conjunction with alkaline detergent products to produce a foam which is capable of clinging to vertical surfaces for extended time periods without breakdown or drying and which ultimately rinses freely with water. The foam stabilizing composition generally comprises a vinyl polymer emulsion. The invention also comprises a method of cleaning hard surfaces using the combination of the alkaline detergent product and the disclosed foam stabilizing composition.

Solid detergent composition and method for solidifying a detergent composition

Abstract: A solid detergent composition is provided including an effective amount of a cleaning agent to provide soil removal and a binding agent dispersed throughout the solid detergent composition. The binding agent comprises a result of mixing alkali metal carbonate, alkali metal bicarbonate, and water. The binding agent preferably includes alkali metal sesquicarbonate. A method for solidifying a detergent composition is provided.

Environmental drivers of invertebrate population dynamics in Neotropical tank bromeliads

Abstract: Tank bromeliads form a conspicuous, yet neglected freshwater habitat in Neotropical forests. Recent studies driven by interests in medical entomology, fundamental aspects of bromeliad ecology and experimental research on food webs have, however, prompted increasing interest in bromeliad aquatic ecosystems. As yet, there is nothing in the literature about the life histories and environmental drivers of invertebrate population dynamics in tank bromeliads. Based on fortnightly samples taken over oneyear, size frequency plots and individual dry masses allowed us to establish the life cycles and growth rates of the dominant aquatic invertebrates in a common bromeliad species of French Guiana. Linear mixed-effect models and Mantel tests were used to predict changes in density, biomass, and growth rates in relation to temperature, rainfall, humidity and detrital resources. Annual variations in invertebrate densities and biomasses could be described according to three types of distribution: unimodal, bimodal or almost constant. Despite seasonal variations, precipitation, temperature, relative humidity and detritus concentration accounted significantly for changes in density and biomass, but we found no significant responses in growth rates of most invertebrate species. Species rather displayed non-seasonal life cycles with overlapping cohorts throughout the year. There was also a trend for delayed abundance peaks among congeneric species sharing similar functional traits, suggesting temporal partitioning of available resources. Beyond novel knowledge, quantitative information on life histories is important to predict food-web dynamics under the influence of external forcing and self-organisation. Our results suggest that changes in species distribution that will affect population dynamics through biotic interactions in space and/or time could have greater effects on food webs and ecosystem functioning than changes in environmental factors per se.

Compositions and process for cleaning and finishing hard surfaces

Abstract: Hard surfaces such as tile, metal, glass, etc. typically in hospitality locations can be cleaned to a bright, shiny, residue-free appearance using a process comprising cleaning the surface with a first cleaning composition and removing the resulting cleaner residue with a finish cleaner composition. The finish cleaner composition removes all trace of soil and cleaner from the first step and dries to a bright, shiny, spot-free, streak-free, and film-free appearance without a need for a final wipe step.

Improvement of nonviral p53 gene transfer in human carcinoma cells using glucosylated polyethylenimine derivatives.

Abstract: Polyethylenimine (PEI) derivatives are potent polycationic nonviral vectors for gene transfer. The gene transfer efficiency of glucosylated and galactosylated PEI derivatives was optimized using green fluorescent protein gene as reporter gene in FaDu and PANC3 human carcinoma cell lines. Glucosylated or galactosylated PEI derivatives were found to be slightly less cytotoxic than unsubstituted PEI. Gene transfer efficiency was found to be related to DNA/cell number ratio and optimal gene transfer efficiency was achieved at 4 microg DNA/10(5) cells. PEI-DNA complexes were found to enter cells rapidly and were detected into cytoplasmic vesicles 2 hours post-transfection. Green fluorescent protein gene expression was detected 4-6 hours after transfection and reached maximal value 24 hours post-transfection. The results achieved demonstrated that glucosylated PEI yield higher and longer gene transfer efficiency than unsubstituted PEI. Using glucosylated PEI allowed to achieve significant gene transfer in more than 10% of the total cell population for more than 4 days. These data were then applied to p53 gene transfer in PANC3 cells bearing p53 gene deletion and consequently unable to initiate apoptosis. Using glucosylated PEI, p53 gene transfer was successfully achieved with subsequent recovery of p53 mRNA expression and transient P53 protein expression. P53 protein functionality was further demonstrated because transfected cells underwent apoptosis.