摘要:
A method for applying a pattern to a target surface includes the steps of applying a coating of membrane material over a selected portion of a substrate. The substrate imparts a pattern to the membrane material corresponding to a pattern to be applied to the target surface. A support member is positioned in contact with an outer portion of the membrane material. The support member has a higher rigidity than the membrane material. The method may also combine the steps of curing the membrane material to bond the support member to the membrane. When bonded to the membrane, the support member maintains at least a portion of the membrane in a substantially taut condition to prevent a portion of the membrane from folding onto itself. The membrane is then employed to impart the pattern to the target surface.
摘要:
A method for applying a pattern to a target surface includes the steps of applying a coating of membrane material over a selected portion of a substrate. The substrate imparts a pattern to the membrane material corresponding to a pattern to be applied to the target surface. A support member is positioned in contact with an outer portion of the membrane material. The support member has a higher rigidity than the membrane material. The method may also combine the steps of curing the membrane material to bond the support member to the membrane. When bonded to the membrane, the support member maintains at least a portion of the membrane in a substantially taut condition to prevent a portion of the membrane from folding onto itself. The membrane is then employed to impart the pattern to the target surface.
摘要:
A method for applying a pattern to a target surface includes the steps of applying a coating of membrane material over a selected portion of a substrate. The substrate imparts a pattern to the membrane material corresponding to a pattern to be applied to the target surface. A support member is positioned in contact with an outer portion of the membrane material. The support member has a higher rigidity than the membrane material. The method may also combine the steps of curing the membrane material to bond the support member to the membrane. When bonded to the membrane, the support member maintains at least a portion of the membrane in a substantially taut condition to prevent a portion of the membrane from folding onto itself. The membrane is then employed to impart the pattern to the target surface.
摘要:
This invention provides device for co-culturing at least two different cell types in a two-dimensional configuration, methods of patterning at least two different cell types in a two-dimensional co-culture configuration, and uses of these devices and methods for analyzing an effect of candidate compound on such cellular cocultures. Also provided is a transmigration and extravasation device. Assay devices for analyzing the absorption, permeability, metabolism and/or toxicity of a candidate compound by a cell are provided. A microfluidic network, which is adaptable for integration with a device for coculturing is provided.
摘要:
The present invention further relates to utilizing the above devices and methods for assaying cellular dynamics and phenotypes to create subject primary cell profiles for patients. Additionally, the present invention relates to methods of correlating primary cell profiles with a therapeutic regimen. Finally, the invention relates to methods for screening test compounds for biological activities by measuring their effect on primary cell profiles.
摘要:
The present invention discloses a test device including a support member; a top member mounted to the support member, wherein in the support member and the top member are configured such that they together define a discrete chamber. The discrete chamber includes a first well region including at least one first well; a second well region including at least one second well; and a channel region including at least one channel connecting the first well region and the second well region with one another. The second region is preferably horizontally offset with respect to the first well region in a test orientation of the device.
摘要:
The invention relates to devices, devices for arraying biomolecules, including cells, methods for arraying biomolecules, assays for monitoring cellular movement, and systems for monitoring cellular movement. The devices include a support; a first layer configured to be placed in fluid-tight contact with the support, the first layer having an upper surface and defining a pattern of micro-orifices, each micro-orifice of the pattern of micro-orifices having walls and defining a micro-region on the support when the first layer is placed in fluid-tight contact with the support such that the walls of said each micro-orifice and the micro-region on the support together define a micro-well; and a second layer configured to be placed in fluid-tight contact with the upper surface of the first layer, the second layer defining a pattern of macro-orifices, each macro-orifice of the pattern of macro-orifices having walls and defining a macro-region when the first layer is placed in fluid-tight contact with the support and the second layer is placed in fluid-tight contact with the first layer such that the walls of the macro-orifice and the macro-region together define a macro-well.
摘要:
The present invention discloses a device for monitoring chemotaxis or chemoinvasion including a housing comprising: a support member and a top member, the top member mounted to the support member by being placed in substantially fluid-tight conformal contact with the support member. The support member and the top member are configured such that they together define a discrete chamber adapted to allow a monitoring of chemotaxis or chemoinvasion therein. The discrete chamber includes a first well region including at least one first well, the at least one first well configured to received a test agent therein; a second well region including at least one second well, the at least one second well configured to receive a sample comprising cells therein; and a channel region including at least one channel connecting the first well region and the second well region with one another. The second well region is preferably horizontally offset with respect to the first well region in a test orientation of the device.
摘要:
The present invention relates to an apparatus and methods that immobilize one or more cells associated with magnetic material on a substrate on which are located one or more magnetic receptacle(s). Alternatively, in another aspect the present invention, the device arrays cells associated with magnetic material on a substrate having a pattern of magnetic receptacles disposed thereon. The size of the magnetic receptacle(s) determines the number of target cells that it is capable of immobilizing. The size of the magnetic receptacle is defined by the strength of a localized magnetic field gradient. The localized magnetic field gradient may be derived from 1) permanent magnets embedded in the substrate or alternatively, the localized magnetic field gradient may be derived from an 2) external magnet whose strength is focused by objects of highly-permeable-magnetic material which create localized magnetic field gradients. The invention apparatus comprises a removable cell delivery device and a substrate, which has one or more magnetic receptacles disposed thereon.
摘要:
Devices and methods for performing assays on materials, particularly biological materials, are provided. The devices and methods make use of self-sealing members, which can be applied to a flat surface to form wells to facilitate immobilization of materials on the flat surface, then removed to yield a flat surface that facilitates the performance of processes on and/or detection of the immobilized material.