摘要:
An immunoassay method involves the use of one or preferably two enzyme amplification steps to increase assay speed or sensitivity. In a first step, a first enzyme is generated in an amount related to the concentration of an analyte in a sample. In a second step, the first enzyme acts on a first substrate to reveal antigenic determinants of a first product. In a third step, the first product is reacted with an antibody. The extent of this immune reaction is determined, preferably by means of an enzyme signal system. Two assays for digoxin and one for 17α-hydroxyprogesterone all using beta-galactosidase as the first enzyme are described.
摘要:
A portable, battery powered apparatus (10) generates an electrical signal between electrodes (15a, 15b) to be applied to the skin of a patient for reduction or prevention of snoring or obstructive sleep apnoea. The signal comprises electrical stimulation at a frequency of 1-100 Hz and the signal comprises a stimulation free period of at least 0.5 seconds every 20 seconds, avoiding muscle fatigue when used for long periods, e.g. overnight.
摘要:
An apparatus for mineralising a biological material includes an ultrasonic source, operable to generate an ultrasonic signal, an ultrasonic probe and one or more mineralising probes, operable to receive a mineralising agent. The mineralising agent is transferred from at least one mineralising probe to the biological material using the ultrasonic signal. Also disclosed are a mineralisation agent and a method of mineralising a biological material that includes the steps of: providing an ultrasound source, providing a mineralising agent, generating an ultrasonic signal from the ultrasound source, and applying the ultrasonic signal and the mineralising agent to the biological material separately, sequentially or simultaneously.
摘要:
The present invention relates to the use of a polyalkenoate acid, such as polyacrylic acid or polymaleic acid, in the manufacture of an air abrasive agent for use in conditioning dental tissue, methods of using such air abrasive agents, dental compositions comprising a polyalkenoate acid, air abrasive agents comprising a polyalkenoate acid and at least one of a bioactive glass, a glycine salt, baking soda and alumina, methods of treatment and/or prophylaxis using an air abrasive agent comprising a polyalkenoate acid.
摘要:
This invention relates to the neural interface comprising one or more electrode-coupled microchannels. Each electrode-coupled microchannel comprises a microchannel for accommodating regenerating nerve axons; and one or more electrodes exposed to the interior of said microchannel. The one or more electrodes may comprise (i) a stimulation array suitable for generating an extracellular stimulus current which induces an action potential in an axon in the microchannel; and/or (ii) a recording array which detects an extracellular signal in the microchannel indicative of an action potential in an axon in the microchannel. Interfaces as described may be useful in blocking pain, treating misrouted motor nerves; repair or treating nerve injury; or controlling or providing sensation and/or proprioception from a prosthesis.
摘要:
The present invention provides isolated preproinsulin-derived peptides of 8 or 9 amino acids, comprising the amino acid sequence WGPDPAA (SEQ ID NO: 1), isolated Class I peptide-HLA complexes presenting said peptides and isolated molecules having binding affinity for said peptides and/or said peptide-HLA complexes. Such compositions are useful in the treatment of Type 1 diabetes mellitus (TlDM)
摘要:
In a broadcast network environment comprising a first broadcast network and a second broadcast network, each broadcast network for broadcasting a plurality of services, each service identifiable by a respective service identity, and in which mobile receivers are assisted to handover reception of a service from one of said first and second broadcast network to the same or a similar service in the other of said first and second broadcast networks, by transmitting handover data toward said mobile receivers, which handover data comprises a mapping between a service identity of a service in said first broadcast network and a corresponding service identity of the same or a similar service in said second broadcast network, a method of generating said handover data for transmission to said mobile receivers, characterised by the steps of said first broadcast network: (a) receiving a broadcast signal from said second broadcast network; (b) for said service identity in said first broadcast network, using a likely common identifier to search for one or more corresponding service in service information data found in said broadcast signal, whereby if available said corresponding service identity of the same or a similar service in said second broadcast network is discovered.
摘要:
The immunoglobulins of the present invention are useful therapeutic immunoglobulins against mucosal pathogens such as S. mutans. The immunoglobulins contain a protective protein that protects the immunoglobulins in the mucosal environment. The invention also includes the greatly improved method of producing immunoglobulins in plants by producing the protection protein in the same cell as the other components of the immunoglobulins. The components of the immunoglobulin are assembled at a much improved efficiency. The method of the invention allows the assembly and high efficiency production of such complex molecules. The invention also contemplates the production of immunoglobulins containing protection proteins in a variety of cells, including plant cells, that can be selected for useful additional properties. The use of immunoglobulins containing protection proteins as therapeutic antibodies against mucosal and other pathogens is also contemplated.