摘要:
The present disclosure provides apparatuses, systems, and methods involving a spotter for depositing a substance on a submerged surface. The spotter comprises an outlet cavity defined at least in part by a spotting orifice, a first opening, and a second opening. The spotter also comprises a first conduit fluidly coupled to the first opening and a second conduit fluidly coupled to the second opening. The spotter is adapted so that fluid flowing through the first conduit and the second conduit is communicated among the first opening, the second opening, and a submerged deposition surface when the sealing orifice is sealed against the submerged deposition surface to form a deposition spot on the submerged deposition surface. The submerged deposition surface is within a liquid such that the liquid covers the deposition spot upon removal of the orifice from the deposition surface.
摘要:
The present disclosure provides apparatuses, systems, and methods involving a spotter apparatus for depositing a substance from a carrier fluid onto a deposition surface in an ordered array, the spotter apparatus comprising a loading surface including a first well and a second well; and a different outlet surface, including a first opening and a second opening, where a first microconduit fluidly couples the first well with the first opening and a second microconduit fluidly couples the second well with the second opening. An overlay is sealed to the outlet surface and penetrated by a deposition channel that is situated to communicate carrier fluid among the first opening, the second opening, and the deposition surface when the overlay is pressed against the deposition surface.
摘要:
The present disclosure provides apparatuses, systems, and methods involving a spotter apparatus for depositing a substance from a carrier fluid onto a deposition surface in an ordered array, the spotter apparatus comprising a loading surface including a first well and a second well; and a different outlet surface, including a first opening and a second opening, where a first microconduit fluidly couples the first well with the first opening and a second microconduit fluidly couples the second well with the second opening. An overlay is sealed to the outlet surface and penetrated by a deposition channel that is situated to communicate carrier fluid among the first opening, the second opening, and the deposition surface when the overlay is pressed against the deposition surface.
摘要:
Disclosed is a spotter device and methods for the formation of microassays, biochips, biosensors, and cell cultures. The spotter may be used to deposit highly concentrated spots of protein or other materials on a microarray slide, wafer, or other surface. It may also be used to perform various chemistry steps on the same spots. The spotter increases the surface density of substances at each spot by directing a flow the desired substance (or a solution thereof) over the spot area until surface saturation is accomplished. The spotter may be loaded by well plate handling equipment. The spotter uses wells, microfluidic conduits, and orifices to deposit proteins, other biomolecules, or chemicals on a spot on a separate surface. Each orifice is connected to two wells via microconduits. When the spotter contacts a surface, a seal is formed between the orifices and the surface. The same or different substances may be flowed across each orifice. Any number of orifices may be incorporated into a spotter. The spotter is particularly useful for depositing proteins in high concentrations on a surface, since the spotter may be placed on a surface for an extended period of time.
摘要:
A method of measuring a subject's strength of associations of multidimensional traits involving each of a first pair of first and second categories with each of a second pair of third and fourth categories includes selecting a first target concept for the first category and a second target concept for the second category and selecting a first trait for the third category and, for the fourth category, a plurality of alternative traits to provide a basis for contrasting with the first trait. The method further includes having the subject respond to a first set of trials in a first manner when there is presented an exemplar of either the first category or the third category and in a second manner when there is presented an exemplar of either the second category or the fourth category and presenting the subject with a first series of exemplars in the first set of trials, the first series including exemplars in all four categories. The method further includes having the subject respond to a second set of trials in one of the two manners when there is presented the exemplar of either the second category or the third category and in the other of the two manners when there is presented the exemplar of either the first category or the fourth category and presenting the subject with a second series of exemplars in the second set of trials, the second series including exemplars in all four categories. Latency is measured in each trial from time of exemplar presentation to the subject to a response by the subject to produce latency measurements. A measure is calculated of the subject's strength of associations involving each of the first and second categories with each of the third and fourth categories from the latency measurements.
摘要:
A cloud-based method, a behavioral analysis system, and a cloud-based security system can include a plurality of nodes communicatively coupled to one or more users, wherein the plurality of nodes each perform inline monitoring for one of the one or more users for security comprising malware detection and preclusion; and a behavioral analysis system communicatively coupled to the plurality of nodes, wherein the behavioral analysis system performs offline analysis for any suspicious content from the one or more users which is flagged by the plurality of nodes; wherein the plurality of nodes each comprise a set of known malware signatures for the inline monitoring that is periodically updated by the behavioral analysis system based on the offline analysis for the suspicious content.
摘要:
The link status of a Fibre-Channel link interconnecting two Fibre-Channel ports may be determined by a third entity distinct from the two Fibre-Channel ports. The third entity may be a transport interface used to connect one of the Fibre-Channel ports to a transport network that carries the link. The transport interface may also learn the Fibre-Channel port types of the two ports.
摘要:
Specialized microfluidic networks are utilized to deposit substances on sensor surfaces. In particular, a flow-based microfluidic printhead is used as an interface to deliver multiple analytes to a sensor for simultaneous analysis. Furthermore, internal referencing is incorporated into sensor regions for improved sensitivity.
摘要:
The composition of a organic (e.g. conducting polymer) solution is reformulated and the device upon which the organic solution is to be deposited is plasma treated to provide a more uniform and flat drying profile for the resulting dried film. This reformulation and treatment induces a more uniform and flatter profile when the reformulated organic solution is allowed to dry into a film on the treated device.
摘要:
Synthetic polymer substrates comprising a hierarchical surface structure of multiple domes and multiple pillars on said domes, wherein said substrate is a synthetic polymer film, said domes have diameters in the range from about 5 μm to about 400 μm, heights in the range from about 2.5 μm and about 500 μm, and said pillars have diameters in the range from about 20 nm to about 5 μm and aspect ratios of from about 2 to about 50, and methods of making and using them.