Abstract:
A friction reducing treatment solution that includes water, from 100 to 500,000 ppm of total dissolved solids, and from 0.5 to 3 gallons per thousand gallons of a water- in-oil emulsion containing a water soluble polymer. The total dissolved solids include at least 10 weight percent of a multivalent cation. The water-in-oil emulsion includes an oil phase and an aqueous phase, where the oil phase is a continuous phase containing an inert hydrophobic liquid and the aqueous phase is present as dispersed distinct particles in the oil phase and contains water, the water soluble polymer, and surfactants and an inverting surfactant. The water soluble polymer is made up of 20 to 80 weight percent of a non- ionic monomer, 0.5 to 30 weight percent of a carboxylic acid containing monomer, and 5 to 70 weight percent of a cationic monomer and makes up from 10 to 35 weight percent of the water-in-oil emulsion.
Abstract:
A system for treating a living being is disclosed including at least one photosensitizing agent for application to diseased tissue that is responsive to visible or infra-red light stimulation to generate species toxic to the diseased tissue; a luminescent compound that is excitable by tissue-penetrating radiation to produce visible or infra-red light to stimulate the photosensitizing agent to generate the toxic species; and a non-invasive or minimally invasive source of the tissue-penetrating radiation to excite the luminescent compound.
Abstract:
Polymeric compositions and systems useful for maintaining particle dispersions for extended periods of time via a three-dimensional interconnected network of bodies in the system after hydration.
Abstract:
Provided herein, inter alia , are polymeric compositions and systems useful for maintaining particle dispersions for extended periods of time. Also provided are dry polymeric compositions and systems that are able to undergo fast hydration. Methods for using such compositions and systems are also provided.
Abstract:
An antimicrobial composition that includes: an antimicrobial component having at least one quaternary ammonium compound; a cationic polysaccharide; an organic acid; and a surfactant selected from cationic surfactants, amphoteric surfactants, nonionic surfactants and combinations thereof. This composition when applied to a surface provides robust long lasting disinfection.
Abstract:
The present disclosure provides polymeric systems that are able to undergo fast hydration and are useful for maintaining particle dispersions for extended periods of time. The polymeric systems are also useful for maintaining particle dispersions for extended periods of time at elevated temperatures and/or in high brine conditions.
Abstract:
Compositions and methods for fracturing a subterranean formation are presented. Also provided are compositions and methods for reducing friction-related losses in a well treatment fluid. In general, the compositions include a copolymer that includes one or more vinylphosphonic acid ("VP A") monomers.
Abstract:
An aqueous sulfate-free surfactant composition that includes: (1 ) a surfactant component including: (A) at least one of a zwitterionic surfactant or an amphoteric surfactant; (B) at least one alkanoyi glycinate; and (C) at least one of a non-ionic surfactant or an acid; and (2) water, wherein the w/w ratio A/B is comprised between about 2 and 6.
Abstract:
The present invention provides methods, compositions and kits for the detection of cancer diagnostic biomarkers, for the diagnosis of cancer, for the identification of a subject at risk for developing cancer, and for the generation of patient-specific cancer diagnostic biomarker profiles.
Abstract:
The present invention is related to methods for preparing composite materials, which include nanoscale hydroxyapatite, and the composite materials and articles prepared therewith.