Patent application number | Description | Published |
20090167304 | APPARATUS AND METHOD FOR VARYING MAGNETIC FIELD STRENGTH IN MAGNETIC RESONANCE MEASUREMENTS - Apparatus and method for varying field strength in a magnetic resonance system while keeping a relatively uniform magnetic field distribution. In an embodiment, a two-pole, generally u-shaped magnet assembly generates a static and uniform magnetic field. The magnet assembly includes two facing magnet poles separated by an air gap. Holes may be formed with the magnet poles. The field control rods may be placed at a pre-determined distance into these holes and symmetrically or asymmetrically moved across each magnet poles in a controlled manner to change the magnetic field strength while keeping the uniform magnetic field distribution. Maximum magnetic field strength may occur when the rods are removed. Minimum magnetic field strength may occur when the rods are fully inserted. | 07-02-2009 |
20090167322 | SYSTEMS AND METHOD FOR CLASSIFYING A SUBSTANCE - A method for classifying a substance is provided. The method includes transmitting an electromagnetic signal at the substance, measuring a portion of the electromagnetic signal reflected by the substance, determining a reflection coefficient of the substance using the measured portion of the electromagnetic signal, and outputting a classification of the substance based on the determined reflection coefficient. | 07-02-2009 |
20090169433 | SYSTEM FOR IMPROVED BIODETECTION - A substance identification system is configured to identify at least one detection target faster and with greater accuracy than is possible using prior substance identification systems and/or prior substance identification techniques. A chamber includes a pellet forming area having a predetermined geometry that is configured to maximize a ratio of a pellet surface area to a pellet volume. A magnet is positioned on one side of the chamber and configured to form a pellet of aggregated magnetic particles in the pellet forming area. A laser source is positioned on the same side of the chamber as the magnet and configured to illuminate the pellet, when the pellet is formed in the pellet forming area. | 07-02-2009 |
20100077843 | SUBSTANCE IDENTIFICATION APPARATUS AND METHODS OF USING - A substance identification system comprises interrelated components. A fluidics cartridge is configured to permit suspension of a sample of a substance of interest in a liquid medium, and to permit transfer of the suspended sample into a container via syringe/needle action or other suitable actuation means. The container is configured to be fixedly or removably coupled with the fluidics cartridge. An interface cartridge is configured to position the container for analysis by a portable substance identification device. | 04-01-2010 |
20150241593 | DISCRIMINATION OF LOW-ATOMIC WEIGHT MATERIALS USING SCATTERING AND STOPPING OF COSMIC-RAY ELECTRONS AND MUONS - Techniques, systems, and devices are disclosed for constructing a scattering and stopping relationship of cosmic-ray charged particles (including cosmic-ray electrons and/or cosmic-ray muons) over a range of low-atomic-mass materials, and to detect and identify content of a volume of interest (VOI) exposed to cosmic-ray charged particles based on the constructed scattering and stopping relationship. In one aspect, a process for constructing a scattering-stopping relationship for a range of low-density materials exposed to cosmic-ray charged particles is disclosed. This technique first determines a scattering parameter and a stopping parameter for each material within the range of low-density materials exposed to charged particles from cosmic ray. The technique then establishes a scattering-stopping relationship of cosmic ray charged particles for the range of low-density materials based on the determined pairs of scattering and stopping parameters associated with the range of low-density materials. | 08-27-2015 |
20160041297 | MATERIAL DISCRIMINATION USING SCATTERING AND STOPPING OF MUONS AND ELECTRONS - In one aspect, a process for characterizing a range of materials based on the scattering and stopping of incident cosmic ray charged particles passing through each material includes: determining a scattering metric and a stopping metric for each material within the range of materials exposed to cosmic ray charged particles; computing a ratio of the scattering metric to the stopping metric to obtain a scattering-to-stopping ratio for each material within the range of materials for the material; and establishing a scattering-stopping relationship for the range of materials based on the determined pairs of the scattering-to-stopping ratio and the associated scattering metric for the range of materials. | 02-11-2016 |
Patent application number | Description | Published |
20090105427 | Cleavable Block Copolymers, Functionalized Nanoporous Thin Films and Related Methods of Preparation - Cleavable, disulfide-coupled block copolymers as can be used in the preparation of nanoporous thin films, micellar configurations and related structures. | 04-23-2009 |
20090184047 | Functionalized nanopore membranes and related methods of use - Functionalized nanopore membranes, apparatus and related methods, as can be used for selective analyte detection and/or separation. | 07-23-2009 |
20110178190 | COMB POLYMERS FOR SUPRAMOLECULAR NANOCONFINEMENT - Polymers including pendent hydrophobic groups and pendent proton transfer groups are shown to form nanostructured films exhibiting greatly increased proton conductivity compared with films prepared from corresponding polymers lacking hydrophobic groups. The polymers can include repeating units each of which has both a hydrophobic group and a proton transfer group. Alternatively, the polymers can be the product of copolymerizing a first monomer with at least one hydrophobic group and a second monomer with at least one proton transfer group. The polymers are useful for the preparation of fuel cell proton exchange membranes. | 07-21-2011 |
20110200675 | DRUG DELIVERY VEHICLES, METHODS OF MANUFACTURE, AND METHODS OF USE THEREOF - Drug delivery vehicles that release one or more drugs, e.g., an opioid antagonist and/or an opioid, in response to changes in the chemistry of body fluids, specifically in response to changes in the partial pressure of CO | 08-18-2011 |
20120183983 | Polymeric Reverse Micelles as Selective Extraction Agents and Related Methods of MALDI-MS Analysis - Methods for liquid-liquid extraction, as can be effected using polymeric reverse micelles, such methods as can be used in conjunction with various mass spectrometric techniques. | 07-19-2012 |
20130190409 | DRUG DELIVERY VEHICLES, METHODS OF MANUFACTURE, AND METHODS OF USE THEREOF - Drug delivery vehicles that release one or more drugs, e.g., an opioid antagonist and/or an opioid, in response to changes in the chemistry of body fluids, specifically in response to changes in the partial pressure of CO | 07-25-2013 |
20140112881 | CROSSLINKED POLYMER NANO-ASSEMBLIES AND USES THEREOF - The invention provides a novel system of nano-assemblies and related method for delivery of therapeutic, diagnostic or imaging agent to biological sites. The compositions and methods of the invention enable the syntheses of novel polymeric nano-assemblies (nanoparticles) under non-emulsion conditions with the incorporation of hydrophobic guest molecules. The versatilities and advantages of the polymer nanoparticles of the invention include: (i) the guest molecules (e.g., drug molecules) can be readily incorporated non-covalently within the nanoparticles; (ii) the surface of the nanoparticles are functionalizable; (iii) the non-covalently encapsulated guest molecule (payload) can be released in response to a biologically relevant stimulus at the target site; (iv) the payload is held by the polymeric nanoparticle before being internalized in cells and can be released within the cellular interiors; (v) encapsulating lipophilic small molecules within its crosslinked interiors and binding proteins on its surface through electrostatic interactions; (vi) facile synthetic methods for ligand functionalization that can be utilized to decorate nanogels with cell targeting ligands that facilitate receptor-dependent cellular uptake, and (vii) the payload release kinetics is tunable and controllable. | 04-24-2014 |
20140275417 | ORGANOBORONATE NANOPARTICLES AND METHODS OF USING THE SAME - In various embodiments, the present invention provides an organoboronate nanoparticle. The nanoparticle includes a polymer, which includes a repeating unit that includes at least one organoboronate functional group. Various embodiments provide compositions including the nanoparticles, surface functionalized nanoparticles, nanoparticles including an encapsulant, methods of making the nanoparticles, and methods of using the nanoparticles, such as methods of stimuli-responsive release of encapsulants. | 09-18-2014 |
20150202163 | POLYMER-POLYMER COMPOSITE NANOASSEMBLIES AND APPLICATIONS THEREOF - The invention provides novel nanoscale delivery vehicles and composite nanoassemblies built from distinct nanoassembly units (e.g., block copolymer micelles and nanogels) with stoichiometric control. These intelligent composite nanoassemblies independently retain the key features of the nanoassembly units and greatly expand the potential functional features attainable based on the surface functionalization. The invention provides a novel approach to constructing nano-vehicles with controllable morphology based on combination of cooperative releasing mechanisms (e.g., redox sensitive nanogels and pH sensitive micelles). Two kinds of guests can be seperately and stably encapsulated in the composite nanocontainers, and then released sequentially under the stimulation of pH change and reduced glutathione. | 07-23-2015 |
20150209447 | CROSSLINKED POLYMER NANO-ASSEMBLIES AND USES THEREOF - The invention provides powerful methods and compositions for designing, selecting, fine-tuning and optimizing polymer nanogel and other supramolecular assemblies for various properties including, for example, particle size, density and morphology, guest loading capacity and encapsulation stability, and dynamic release control. | 07-30-2015 |
20160075829 | POLYMERIC NANOGELS WITH DEGRADABLE BACKBONES AND FROM GRAS COMPONENTS, AND COMPOSITIONS AND METHODS THEREOF - The invention generally relates to novel polymers and polymeric nanogels having biodegradable polymeric backbones, and compositions and methods of preparation and use thereof, for example, as guest-host polymer nano-assemblies and nano-delivery vehicles, which offer utilities in diverse fields including drug delivery, diagnostics and specialty materials. | 03-17-2016 |