Patent classifications
B01D15/20
SUPERFICIALLY POROUS PARTICLES WITH DUAL PORE STRUCTURE AND METHODS FOR MAKING THE SAME
Superficially porous particles are provided. Aspects of the superficially porous particles include a non-porous inner core and a porous outer shell that includes inner and outer porous regions. The inner porous region can include ordered cylindrical pores substantially perpendicular to the non-porous inner core. The outer porous region can include conical pores which extend to the surface of the particles and which are in fluid communication with the cylindrical pores of the inner porous region. Also provided are methods of making the subject superficially porous particles. Aspects of the methods include subjecting substantially solid inorganic oxide particles to agitation in an aqueous solution in the presence of a first cationic surfactant and a second anionic surfactant, which together form micelles, to pseudomorphically transform the particles.
SYSTEMS AND METHODS FOR ONSITE SORBENT MATERIAL REUSE
Methods, sorbent cartridges and cleaning devices are disclosed for refurbishing sorbent materials. In one implementation among multiple implementations, a medical fluid delivery method includes: providing a sorbent cartridge including H.sup.+ZP within a casing for a treatment; and after the treatment, refurbishing the H.sup.+ZP while maintained within the casing via (i) regenerating the non-disinfected H.sup.+ZP by flowing an acid solution through the casing, (ii) rinsing the regenerated H.sup.+ZP while maintained within the casing, (iii) disinfecting the regenerated and rinsed H.sup.+ZP by flowing a disinfecting agent through the casing, and (iv) rinsing the regenerated and disinfected H.sup.+ZP while maintained within the casing. Multiple batch sorbent refurbishing implementations are also disclosed.
COLUMN PACKING APPARATUS AND PACKING METHOD
A column packing apparatus includes a tubular structure, a packing material supplier disposed on one end of the tubular structure for permitting a packing material slurry formed by a packing material dispersed in a solvent to be packed into the tubular structure, and a packing controller disposed on the other end of the tubular structure for determining the flow rate and pressure of the packing material slurry formed by the packing material being packed so that they can be maintained at predetermined flow rate and pressure level. A column packing method includes the steps of providing a packing controller disposed on the other end of the tubular structure, and permitting the packing controller to variably adjust the flow rate and pressure of the packing material slurry so that they can be maintained at the predetermined flow rate and pressure level.
Devices and Methods using Pore Size Modulation for Detecting Analytes in a Fluid Sample
Provided are devices that include a polymeric separation medium configured to immobilize one or more constituents of interest in the polymeric separation medium and have an increased pore size upon application of an applied stimulus. Systems including the devices, as well as methods of using the devices, are also provided. Embodiments of the present disclosure find use in a variety of different applications, including detecting whether an analyte is present in a fluid sample.
Devices and Methods using Pore Size Modulation for Detecting Analytes in a Fluid Sample
Provided are devices that include a polymeric separation medium configured to immobilize one or more constituents of interest in the polymeric separation medium and have an increased pore size upon application of an applied stimulus. Systems including the devices, as well as methods of using the devices, are also provided. Embodiments of the present disclosure find use in a variety of different applications, including detecting whether an analyte is present in a fluid sample.
TEST STRIPS FOR DETERMINING THE CONCENTRATION OF A COMPONENT IN A LIQUID COMPOSITION
A test strip for determining the concentration of a component in a liquid composition is disclosed. The test strip comprises a carrier sheet coated with a layer of an adsorbent, and a chemical dye deposited on the test strip near but spaced apart from a bottom edge of the test strip. In some embodiments, the test strip is a thin-layer chromatography (TLC) plate, and the retention factor of the chemical dye varies according to the concentration of the component in the liquid composition. A user can determine the concentration of the component based on the migration distance of the chemical dye on the test strip in a chromatography process. The test strip can be used to perform a fast and visual test to determine the ethanol content in a fuel sample.
APOLIPOPROTEIN E ISOTYPE DETECTION BY MASS SPECTROMETRY
Provided are methods for determining the apolipoprotein E (ApoE) phenotype in a sample by mass spectrometry; wherein the ApoE allele(s) present in the sample is determined from the identity of the ions detected by mass spectrometry. In another aspect, provided herein are methods for diagnosis or prognosis of Alzheimer's disease or dementia.
Methods for Removing Undesired Components During Multistage Chromatographic Processes
High resolution affinity chromatography combining affinity resolving and affinity capture processes using a single chromatography matrix results in improved resolution between closely related molecular species and significantly enhances overall product yield for large scale commercial production of heterodimeric proteins such as bispecific antibodies. Moreover, tankage and equipment requirements are reduced via the ability to reduce salt concentration, while increasing product purity and concentration, without the need for dilution, ultrafiltration or diafiltration.
METHOD FOR PRODUCING ZERO-VALENT METALS IN FILTERING MEDIA
A method for producing microparticles and/or nanoparticles based on zero-valent metals directly inside a filtering media and/or for creating covering layers based on the zero-valent metals for covering. The filleting media includes the steps of introducing at least one solution containing metal salts in the filtering medium, introducing at least one solution containing inorganic reducing agents into the filtering medium. The steps of introducing the at least one solution containing metal salts and the at least one solution containing inorganic reducing agents inside the filtering medium is carried out in a way separated in time and/or in space to realize, in the filtering medium, a mixture of metal ions with the inorganic reducing agents as well as a chemical reduction of the zero-valent metals to form the microparticles and/or the nanoparticles and/or coverings based on the zero-valent metals inside of the filtering medium.
SOLID SUPPORT COMPRISING CARBON NANOTUBES, SYSTEMS AND METHODS TO PRODUCE IT AND TO ADSORBE ORGANIC SUBSTANCES ON IT
Method for manufacturing an inert solid support with optionally functionalised carbon nanotubes (CNTs), comprising the steps of: i) providing an inert solid support and at least one catalytic metal associated with, or absorbed in, or adsorbed/deposited on, said support, said metal being optionally selected from among the group consisting of iron, cobalt, nickel, molybdenum and combinations thereof; ii) supplying a source of gaseous, liquid or solid carbon to the catalytic metal; iii) through chemical vapor deposition (CVD), depositing at least part of the carbon source at the catalytic metal as CNTs, stably connected to the inert solid support. The present invention further regards an inert solid support and a separation method.