Abstract: A method for etching a semiconductor structure is provided, the semiconductor structure includes a sub-surface quantum structure of a first III-V semiconductor material, beneath a surface layer of a second III-V semiconductor material having a charge carrier density of less than 5×1017 cm?3. The sub-surface quantum structure may include, for example, a quantum well, or a quantum wire, or a quantum dot. The method includes the steps of exposing the surface layer to an electrolyte, and applying a potential difference between the first III-V semiconductor material and the electrolyte, to electrochemically etch the sub-surface quantum structure to form a plurality of nanostructures, while the surface layer is not etched. A semiconductor structure, uses thereof, and devices incorporating such semiconductor structures are further provided.

Abstract: A method for etching a semiconductor structure (110) is provided, the semiconductor structure comprising a sub-surface quantum structure (30) of a first III-V semiconductor material, beneath a surface layer (31) of a second III-V semiconductor material having a charge carrier density of less than 5×1017 cm?3. The sub-surface quantum structure may comprise, for example, a quantum well, or a quantum wire, or a quantum dot. The method comprises the steps of exposing the surface layer to an electrolyte (130), and applying a potential difference between the first III-V semiconductor material and the electrolyte, to electrochemically etch the sub-surface quantum structure (30) to form a plurality of nanostructures, while the surface layer (31) is not etched. A semiconductor structure, uses thereof, and devices incorporating such semiconductor structures are further provided.

Abstract: The present disclosure provides compositions and methods for the genetic modification of cells, including, but not limited to, hepatocytes. The compositions and methods can comprise lipid nanoparticles, wherein the lipid nanoparticles comprise at least one bioreducible ionizable cationic lipid, at least one structural lipid, at least one phospholipid and at least one PEGylated lipid.

Abstract: A method for etching a semiconductor structure (110) is provided, the semiconductor structure comprising a sub-surface quantum structure (30) of a first III-V semiconductor material,beneath a surface layer (31) of a second III-V semiconductor material having a charge carrier density of less than 5×1017 cm?3. The sub-surface quantum structure may comprise, for example, a quantum well, or a quantum wire, or a quantum dot. The method comprises the steps of exposing the surface layer to an electrolyte (130), and applying a potential difference between the first III-V semiconductor material and the electrolyte, to electrochemically etch the sub-surface quantum structure (30) to form a plurality of nanostructures, while the surface layer (31) is not etched. A semiconductor structure, uses thereof, and devices incorporating such semiconductor structures are further provided.

Abstract: A method for etching a semiconductor structure (110) is provided, the semiconductor structure comprising a sub-surface quantum structure (30) of a first III-V semiconductor material, beneath a surface layer (31) of a second III-V semiconductor material having a charge carrier density of less than 5 × 1017 cm-3. The sub-surface quantum structure may comprise, for example, a quantum well, or a quantum wire, or a quantum dot. The method comprises the steps of exposing the surface layer to an electrolyte (130), and applying a potential difference between the first III-V semiconductor material and the electrolyte, to electrochemically etch the sub-surface quantum structure (30) to form a plurality of nanostructures, while the surface layer (31) is not etched. A semiconductor structure, uses thereof, and devices incorporating such semiconductor structures are further provided.

Abstract: In one embodiment of the present invention, a filtration device can include a chamber; magnetic objects configured to bind or adhere to one or more components of a fluid; and, at least one magnet disposed on an outer surface of the chamber, wherein the chamber comprises an inlet through which the fluid may be introduced and an exit through which the fluid may be removed, at least one magnet is configured to produce magnetic fields within the fluid, and the magnetic objects are configured to move within the fluid in response to magnetic fields produced by at least one magnet. Related methods and systems are also disclosed.

Abstract: A method for etching a semiconductor structure (110) is provided, the semiconductor structure comprising a sub-surface quantum structure (30) of a first III-V semiconductor material,beneath a surface layer (31) of a second III-V semiconductor material having a charge carrier density of less than 5×1017 cm3. The sub-surface quantum structure may comprise, for example, a quantum well, or a quantum wire, or a quantum dot. The method comprises the steps of exposing the surface layer to an electrolyte (130), and applying a potential difference between the first III-V semiconductor material and the electrolyte, to electrochemically etch the sub-surface quantum structure (30) to form a plurality of nanostructures, while the surface layer (31) is not etched. A semiconductor structure, uses thereof, and devices incorporating such semiconductor structures are further provided.

Abstract: A method of operating a device comprising connecting to an external data source via a network, determining that the network connection has been broken, determining that the network connection has been restored, detecting that a user is accessing an application that requires access to the network connection, and prioritizing the accessed application with respect to the required access to the network connection.

Abstract: A non-conductive wire splice apparatus having a connector configured to be coupled between a first wire and a second wire. The connector having a non-conductor coupled between a first sleeve and a second sleeve. The first sleeve being attachable to the first wire. The second sleeve being attachable to the second wire opposite the first sleeve. The non-conductor being configured to electrically insulate the first wire from the second wire. An electrical current in the first wire is insulated from being conducted to the second wire.

Abstract: A method of operating a device comprising connecting to an external data source via a network, determining that the network connection has been broken, determining that the network connection has been restored, detecting that a user is accessing an application that requires access to the network connection, and prioritizing the accessed application with respect to the required access to the network connection.

Abstract: A method of operating a device comprising connecting to an external data source via a network, determining that the network connection has been broken, determining that the network connection has been restored, detecting that a user is accessing an application that requires access to the network connection, and prioritizing the accessed application with respect to the required access to the network connection.

Abstract: A method of operating a device comprising connecting to an external data source via a network, determining that the network connection has been broken, determining that the network connection has been restored, detecting that a user is accessing an application that requires access to the network connection, and prioritizing the accessed application with respect to the required access to the network connection.

Abstract: A non-conductive wire splice apparatus having a connector configured to be coupled between a first wire and a second wire. The connector having a non-conductor coupled between a first sleeve and a second sleeve. The first sleeve being attachable to the first wire. The second sleeve being attachable to the second wire opposite the first sleeve. The non-conductor being configured to electrically insulate the first wire from the second wire. An electrical current in the first wire is insulated from being conducted to the second wire.

Abstract: The invention pertains to a new type of spectroscope comprising an array of Fabry-Perot cells having no moving parts and that can be fabricated inexpensively using semiconductor fabrication techniques.

Abstract: An apparatus, and an associated method, for powering a powerline network apparatus, such as a HOMEPLUG™ transceiver. A data signal sensor is positioned to sense a data signal that is to be operated upon by the powerline network apparatus. When a data signal is sensed, an indication is formed, and the indication is used to control the switch positioning of a switch that interconnects a power supply with the powerline network apparatus. When the indication of sensing of the data signal is formed, the switch is closed, and the power supply is connected to the powerline-network apparatus operative power is provided to power the powerline network apparatus.

Abstract: A method for controlling the displacement of a stack of a piezoelectric actuator for use in a fuel injector comprises determining a desired amount of charge (?Q) to be added or removed from the stack. The method further comprises determining an operating parameter of the fuel system and selecting a drive current level (PO, SO) and a drive time (topen, tclose) in accordance with the desired amount of charge (?Q) and the operating parameter, and driving the drive current through the stack for the drive time (topen, tclose) in order to add or remove the desired amount of charge (?Q).

Abstract: The present invention relates to droplet-based pyrosequencing including a method of identifying a base at a target position in a sample nucleic acid. The method includes: (a) providing a droplet microactuator including a first droplet including a sample nucleic acid immobilized on a bead; and (b) on the droplet microactuator: (i) contacting the first droplet with one or more reagent droplets to yield a second droplet, wherein the one or more reagent droplets include reagents for extending a double stranded portion of the sample nucleic acid by incorporating a nucleotide at the target position; (ii) splitting the second droplet to yield a third droplet including the bead and a fourth droplet lacking the bead; and (iii) assaying the third droplet to determine whether the nucleotide was incorporated at the target position.

Abstract: The present invention relates to a droplet microactuator and to systems, apparatuses and methods employing the droplet microactuator for executing various protocols using droplets. The invention includes a droplet microactuator or droplet microactuator system having one or more input reservoirs loaded with reagents for conducting sequencing protocols, such as the reagents for conducting a pyrosequencing protocol. The invention also includes a droplet microactuator or droplet microactuator system, having one or more input reservoirs loaded with a sample for conducting a pyrosequencing protocol.

Abstract: An apparatus, and an associated method, for powering a homeplug device, such as a homeplug transceiver. A data signal sensor is positioned to sense a data signal that is to be operated upon by the homeplug device. When a data signal is sensed, an indication is formed, and the indication is used to control the switch positioning of a switch that interconnects a power supply with the homeplug device. When the indication of sensing of the data signal is formed, the switch is closed, and the power supply is connected to the homeplug device operative power is provided to power the homeplug device.

Abstract: The present invention relates to a droplet microactuator and to systems, apparatuses and methods employing the droplet microactuator for executing various protocols using droplets. The invention includes a droplet microactuator or droplet microactuator system having one or more input reservoirs loaded with reagents for conducting sequencing protocols, such as the reagents for conducting a pyrosequencing protocol. The invention also includes a droplet microactuator or droplet microactuator system, having one or more input reservoirs loaded with a sample for conducting a pyrosequencing protocol.