摘要:
A fiber-reinforced and starch-based composition can be prepared by combining two fractions. The first fraction can include a gelatinized starch, water, and fibers, wherein the fibers are substantially homogenously mixed with the starch in an amount sufficient to structurally reinforce the mechanical characteristics of the starch-based composition. The second fraction is then combined with the first fraction, wherein the second fraction can include non-gelatinized starch, non-volatile plasticizer, and a water-resistant polymer. The composition is mixed so as to form a thermoplastic composition being capable of expanding when rapidly heated to above the boiling point of water and the softening point of the plasticized starch. Additionally, fiber-reinforced articles can be prepared from a method of processing the starch-based compositions. Such a method includes introducing the fiber-reinforced starch-based composition into a mold, and molding the composition into a fiber-reinforced article.
摘要:
An expandable starch-based composition includes a starch, a volatile blowing agent, a non-volatile plasticizer, nucleating agent, and a water-resistant polymer. The expandable starch-based composition can be characterized by having a plasticized starch capable of expanding when rapidly heated to above the boiling point of the volatile blowing agent and the softening point of the plasticized starch. The composition can be used in a method of manufacturing an expandable starch-based bead, wherein the method includes: introducing the composition into an extruder; heating and mixing the composition in order to yield a thermoplastic melt; extruding the thermoplastic melt through a die opening to yield an extruded strand; cooling the extruded strand; and cutting the cooled strand in to beads. The beads can be used in a method of manufacturing a biodegradable article, the method includes: providing a plurality of expandable starch-based beads; placing the beads into a mold cavity; rapidly heating the beads to a temperature greater than the boiling point of the volatile blowing agent; causing at least a portion of the expanded beads to adhere together to form an intermediate molded body; and cooling the intermediate molded body to yield the article of manufacture.
摘要:
A sun visor extender and CD holder includes a frame and a pair of longitudinal sides. A plurality of notches is formed along a top surface of the sides. Oppositely disposed ends are formed with the sides and oriented orthogonal thereto. Open top and bottom faces define a central region between the sides and the ends. Straps traverse across a width of the frame and are anchored thereto and span subjacent to the top and bottom faces. A storage rack is attached to the frame and has shoulders bulging outwardly from a bottom surface thereof. The rack is oppositely faced from the straps and extends along an entire surface area of the top surface of the frame. A sun-blocking plate has a body interfitted between the sides and the ends and is supported by the straps.
摘要:
A remote monitoring system includes a sensor interface, a processor, and a wireless communication interface. The sensor interface receives sensor information from a sensor coupled to the sensor interface. The processor processes the sensor information into at least one data packet for transferring to a server. The wireless communication interface transfers the data packet over wireless communications to the server.
摘要:
Addition of a bacterial ADP-ribosylating exotoxin (bARE) to a formulation (e.g., immunogen or vaccine) or a system (e.g., patch or kit) for immunization enhances the immune response in a subject to one or more components of the formulation. Binding of the B subunit of a bARE to ganglioside GM1 of the subject in vivo, however, mediates toxicity and limits the use of native bARE as adjuvants. Mutation or in vitro coupling of the B subunit to ligands such as GM1 inhibits binding to GM1 in vivo, thereby eliminating toxicity but retaining desired adjuvant activity. The use of such detoxified, GM-1 binding deficient exotoxins provides a safe and potent new strategy for development of effective formulation for immunization.
摘要:
Transcutaneous immunization can deliver antigen to the immune system through the stratum corneum without physical or chemical penetration to the dermis layer of the skin. This delivery system induces an antigen-specific immune response. Use of skin-active adjuvants is preferred. Although perforation of intact skin is not required, superficial penetration or micropenetration of the skin can act as an enhancer; similarly, hydration may enhance the immune response. This system can induce antigen-specific immune effectors after epicutaneous application of a formulation containing one or more antigen and adjuvant. The formulation may initiate processes such as antigen uptake, processing, and presentation; Langerhans cell activation, migration from the skin to other immune organs, and differentiation to mature dendritic cells; contacting antigen with lymphocytes bearing cognate antigen receptors on the cell surface and their stimulation; and combinations thereof. Systemic and/or regional immunity may be induced; immune responses that result in prophylaxis and/or therapeutic treatments are preferred. Antigen and adjuvant activities in the formulation may be found in the same molecule, two or more different molecules dissociated from each other, or multiple molecules in a complex formed by covalent or non-covalent bonds. For antigens and adjuvants which are proteinaceous, they may be provided in the formulation as a polynucleotide for transcutaneous genetic immunization. Besides simple application of a liquid formulation, patches or other medical devices may be used to deliver antigen for immunization.
摘要:
Transcutaneous immunization can deliver antigen to the immune system through the stratum corneum without physical or chemical penetration to the dermis layer of the skin. This delivery system induces an antigen-specific immune response without the use of a heterologous adjuvant. Although perforation of intact skin is not required, superficial penetration or micropenetration of the skin can act as an enhancer; similarly, hydration may enhance the immune response. This system can induce antigen-specific immune effectors after epicutaneous application of a formulation containing one or more antigens. The formulation may initiate processes such as antigen uptake, processing, and presentation; Langerhans cell activation, migration from the skin to other immune organs, and differentiation to mature dendritic cells; contacting antigen with lymphocytes bearing cognate antigen receptors on the cell surface and their stimulation; and combinations thereof. Systemic and/or regional immunity may be induced. Immune responses that provide prophylactic and/or therapeutic treatments are preferred. Antigenic activities in the formulation may be found in the same molecule, two or more different molecules dissociated from each other, or multiple molecules in a complex formed by covalent or non-covalent bonds. For antigens which are proteinaceous, they may be provided in the formulation as a polynucleotide for transcutaneous genetic immunization. Besides simple application of a dry or liquid formulation to the skin, patches and other medical devices may be used to deliver antigen for immunization.
摘要:
An apparatus and method for efficiently collecting data at a remote device with a device that is able to use both analog and digital signals, especially those that are compliant with serial data interface twelve (SDI-12) protocol. The collected data is compressed into a packet and sent to a base station where it is made available. Additionally, the present invention is able to produce alarms in response to the detection of an alarm condition. This data is able to be viewed from virtually anywhere.
摘要:
A solar cell structure has a solar cell unit structure including a heat sink, and a solar cell having a front side, a back side, and a solar-cell projected area coverage on the heat sink. The solar cell has an active semiconductor structure that produces a voltage between the front side and the back side when the front side is illuminated. An intermediate structure is disposed between and joined to the back side of the solar cell and to the heat sink. The intermediate structure has an intermediate-structure projected area coverage on the heat sink and includes a by-pass diode having a diode projected area coverage on the heat sink. The diode projected area coverage on the heat sink may be substantially the same as the intermediate-structure projected coverage on the heat sink. Alternatively, the diode projected area coverage on the heat sink maybe less than the solar-cell projected area coverage on the heat sink, and the intermediate structure further includes a substrate coplanar with the by-pass diode.
摘要:
The invention provides devices for the disruption of one or more layers of skin and methods of their use to administer therapeutic agents, e.g., antigens or drugs. The devices are designed to disrupt a defined area of skin. The defined area can approximate the area that a patch or other suitable vehicle for therapeutic agent, e.g., drug or vaccine, delivery is designed to contact. Exemplary devices employ a mask to define the area to be disrupted. Other devices disrupt a defined area by rotating in place. For devices that employ a mask that is secured to the skin, the invention provides methods of disrupting the stratum corneum by first securing the mask to the skin and then disrupting the skin. For rotating devices, the disrupting member is simply placed against the skin and actuated to effect disruption.