摘要:
Materials and methods are described in which the information dependence of RNA polymerase is employed to enable its use as a molecular motor adaptable for movement within DNA grid arrays and to actuate, move, position or alter cargo such as physical structures and normally inanimate substances and objects.
摘要:
A mobile device for detecting an electrical signal generated by an ingestible event marker is disclosed. The mobile device includes a detection subsystem to receive an electrical signal generated by an ingestible event marker from a detection arrangement. A processing subsystem is coupled to the detection subsystem to decode the electrical signal. A radio subsystem is configured to transmit the decoded electrical signal to a wireless node. A system includes the mobile device and the detection arrangement. A method includes receiving the electrical signal generated by the ingestible event marker at the mobile device, decoding the electrical signal to extract information associated with the ingestible event marker, and transmitting the information to a wireless node.
摘要:
A device for electronic detection of a target includes a probe, e.g. an oligonucleotide, attached to a pad of resistive material, wherein the pad is adjacent a first electrode and also is adjacent a second electrode. In use, the probe is contacted with a sample containing the target, e.g. a target nucleic acid, under conditions and for a time sufficient to allow target to bind the probe. An enhancement reaction is then applied to result in a change in an observable property of the device. The observable property is then monitored using measurement apparatus operably associated with the device. Typically, multiple devices will be present on an array of devices, allowing multiplex analysis of multiple different targets using a single array of devices.
摘要:
An apparatus is disclosed as part of a system for tracking and confirming delivery of a medicinal dose to a user. The apparatus includes a detector. The detector is secured to and communicatively coupled to the user and is capable of detecting a current flow through the user's body. The current flow is produced when the user makes contact with the apparatus. The apparatus includes at least two contact areas connected to a power source where a circuit and, hence, a current path is completed through the user's body as the user makes contact with the apparatus. The current flow is detected by the detector, which is coupled to the user. Also disclosed is an apparatus for tracking and confirming delivery of a medicinal dose to a user where the apparatus includes an acoustic detector. Upon loading the dose into a chamber an acoustic vibration is generated. The vibration is detected and correlated with a current flow that is produced when the user makes contact with the apparatus. The combined event of vibration detection and current flow detection confirms that the dose is loaded and the user is in contact with the apparatus and ready to receive the dose.
摘要:
Methods and apparatus for electronically addressing and interrogating microarrays are disclosed. The described microarrays include a plurality of features disposed on a substrate. Each of the features has a first electrode disposed on the substrate, a second electrode disposed on the substrate, and a probe disposed between the first electrode and second electrode. The substrate also includes addressing circuitry in operable relation to the features. Method of using the microarrays are also described.
摘要:
Methods and apparatus for electronically addressing and interrogating microarrays are disclosed. The described microarrays include a plurality of features disposed on a substrate. Each of the features has a first electrode disposed on the substrate, a second electrode disposed on the substrate, and a probe disposed between the first electrode and second electrode. The substrate also includes addressing circuitry in operable relation to the features. Method of using the microarrays are also described.
摘要:
The present invention relates to an apparatus for handling a liquid sample, wherein the apparatus includes integrated sample processing and sample evaluating components.
摘要:
A chimera oligonucleotide is provided that can be used in a process for obtaining transcripts and/or amplification of a target sequence of a nucleic acid, having, at its 3' end, a downstream sequence. The oligonucleotide comprises successively, from 5' to 3', 1) a first oligonucleotide segment, of the DNA type, comprising a sense sequence of a promoter of an RNA polymerase, 2) a second oligonucleotide segment, of the DNA type, capable of hybridizing with the downstream sequence, and 3) a third oligonucleotide segment, of the RNA type, capable of hybridizing with a part of the target sequence contiguous to the downstream sequence, the third segment being blocked at 3'. A process using the chimera oligonucleotide and an enzyme system containing DNA polymerase activity, RNA polymerase activity, and a third activity, for example, an RNase H activity provides transcription products of the target. By adding a second chimera oligonucleotide capable of hybridizing with the complement of the target, cyclic amplification of the target and its complement are obtained.