Cell culture systems remain a workhorse in both research and industry. Both research and industry demand high-throughput and low-cost systems. As such, there exists a need for the development of improved cell culture systems and devices.
Described herein are embodiments of a cell culture interface that can contain a first layer that can contain a via or a plurality of vias, where the via or plurality of vias can extend from a first surface of the first layer to a second surface of the first layer; and a second layer, where the second layer and/or the first layer can be optically transparent and can be configured to contact a cell culture, and where the cell culture interface can be configured to communicate and/or relay an energy between the cell culture and an electronic interface. In embodiments, each via can be independently selected from the group of: electrical vias and optical vias. In embodiments, at least one of the plurality of vias can be an electrical via and wherein the electrical via can further extend through the second layer from a first surface of the second layer to a second surface of the second layer. In embodiments, the first layer can be configured to removably couple to the electrical interface. In embodiments, the cell culture interface can be configured to optically, electrically, or optically and electrically communicate with and/or relay an energy between the electronic interface and cells cultured on the layered interface. In embodiments, the cell culture interface can contain a third layer. The third layer can be an optical filter. The third layer can couple to the second layer. In embodiments, the second layer is an optical filter. In embodiments the first and the second layers form a single layer, such that the first and the second layer are indistinguishable from each other. In embodiments, the first and the third layer form a single layer, such that the first and the third layer are indistinguishable from each other. In embodiments, the second and the third layer form a single layer. In embodiments, the first, second and third layer form a single layer such that the cell culture interface does not contain separately identifiable layers.
The first layer, second layer, and/or third layer can be optically transparent. The first layer, second layer, and/or third layer can be made of a polymer, glass, or polymer and glass. In some embodiments the polymer can be polypropylene, polystyrene, or PDMS. The cell culture interface can further include a structured layer that can be coupled to the second or optional third layer. The structured layer can contain a well and or/a microchannel. The structured layered can contain a plurality of wells and/or microchannels. The cell culture interface can be biocompatible and/or disposable.
Also provided herein are methods that include the step of culturing cells on a layered interface or system including the layered cell culture interface as described herein. In embodiments, the method can include the step of culturing cells on the layered interface. The method can include relaying an energy between the cells and an electronic interface through the layered interface. The method can further include the step of adding a compound to the cells or contacting a cell with a compound. The compound can be a biological molecule or a chemical compound. In embodiments, the cells can be cardiac cells, neurons, or embryonic stem cells.
Further aspects of the present disclosure will be readily appreciated upon review of the detailed description of its various embodiments, described below, when taken in conjunction with the accompanying drawings.
Before the present disclosure is described in greater detail, it is to be understood that this disclosure is not limited to particular embodiments described, and as such may, of course, vary. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting.
Where a range of values is provided, it is understood that each intervening value, to the tenth of the unit of the lower limit unless the context clearly dictates otherwise, between the upper and lower limit of that range and any other stated or intervening value in that stated range, is encompassed within the disclosure. The upper and lower limits of these smaller ranges may independently be included in the smaller ranges and are also encompassed within the disclosure, subject to any specifically excluded limit in the stated range. Where the stated range includes one or both of the limits, ranges excluding either or both of those included limits are also included in the disclosure.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. Although any methods and materials similar or equivalent to those described herein can also be used in the practice or testing of the present disclosure, the preferred methods and materials are now described.
All publications and patents cited in this specification are herein incorporated by reference as if each individual publication or patent were specifically and individually indicated to be incorporated by reference and are incorporated herein by reference to disclose and describe the methods and/or materials in connection with which the publications are cited. The citation of any publication is for its disclosure prior to the filing date and should not be construed as an admission that the present disclosure is not entitled to antedate such publication by virtue of prior disclosure. Further, the dates of publication provided could be different from the actual publication dates that may need to be independently confirmed.
As will be apparent to those of skill in the art upon reading this disclosure, each of the individual embodiments described and illustrated herein has discrete components and features which may be readily separated from or combined with the features of any of the other several embodiments without departing from the scope or spirit of the present disclosure. Any recited method can be carried out in the order of events recited or in any other order that is logically possible.
Embodiments of the present disclosure will employ, unless otherwise indicated, techniques of molecular biology, cell biology, microbiology, nanotechnology, organic chemistry, biochemistry, chemical engineering, electrical engineering, computer engineering, biomedical engineering and the like, which are within the skill of the art. Such techniques are explained fully in the literature.
As used herein, “integrated circuit” can refer to a set of electronic, photonic, and/or opto-electronic circuits integrated on a semiconductor plate or wafer.
As used herein, “integrated circuit arrays” can refer to a set of integrated circuits where the integrated circuits are configured as a mappable, addressable, and/or ordered array of pixels or pixel groups.
As used herein “optically transparent” can refer to a property of a material that refers to the ability of the material to allow electromagnetic energy (e.g. light waves) to pass through. “Optically transparent” as used herein refers to any material that does not have 100% impendence of electromagnetic energy (e.g. light waves). An optically transparent material can allow 1% to 100% of all light waves or other electromagnetic energy to pass through.
As used herein, “about,” “approximately,” and the like, when used in connection with a numerical variable, generally refers to the value of the variable and to all values of the variable that are within the experimental error (e.g., within the 95% confidence interval for the mean) or within +/−10% of the indicated value, whichever is greater.
As used herein, “sensor” refers to a transducer that can convert a form of energy into an electrical, electromagnetic, or vibrational signal. Sensor(s), as used herein, can be configured to convert an energy input into an output signal, such as a voltage, impedance, sound, light, or other signal.
As used herein, “communication” refers to the transfer information and/or an energy signal between one or more devices or components thereof. Communication can be physical, electrical, electromagnetic, optical, mechanical, nuclear, atomic, visual, audible, molecular, thermal, fluidic, vibrational, wireless, chemical, and/or magnetic.
As used herein, “energy” can refer to any form of energy, including but not limited to, thermal energy, electromagnetic energy, vibrational energy, magnetic energy, chemical energy, electrical energy, mechanical energy, and elastic energy.
Discussion
Existing cell-based assays often rely on sensing a single modality (e.g. a fluorescent signal), which presents significant drawbacks such as expensive infrastructure, limited throughputs, and an inability for continuous and long-term monitoring. Therefore, there is a tremendous need for low-cost sensing platforms for cell-based assays to perform fast, efficient, and large-scale cell culture assays.
With that said, described herein are systems and devices that can be configured to relay an energy between a cell or cells of a cell culture and/or the cell culture environment and an electronic interface. Also described herein are methods of using the cell culture systems and devices provided herein. The systems and devices described herein can allow for low-cost, large-scale throughput, and real-time cellular monitoring. Further, the systems and devices described herein can be configured such that one or more components are disposable and/or reusable, which can reduce contamination concerns and decrease cost. Other compositions, compounds, methods, features, and advantages of the present disclosure will be or become apparent to one having ordinary skill in the art upon examination of the following drawings, detailed description, and examples. It is intended that all such additional compositions, compounds, methods, features, and advantages be included within this description, and be within the scope of the present disclosure.
Described herein are systems that can contain cell culture interface, where the cell culture interface can be configured to contact a cell, cells, and/or cell culture and relay an energy between a cell or cells and an electronic interface. Discussion of the various embodiments begins with
In some embodiments, the material can be a low cost disposable material, such as, but not limited to a plastic or glass. In some embodiments, the substrate 1110 and/or electronic interface 1000 can be configured for single use. In other embodiments, the substrate 1110 and/or electronic interface 1000 can be configured for multiple uses. In some embodiments, the substrate 1110 and/or electronic interface 1000 can be configured such that it or parts thereof can be cleaned and/or sterilized between uses. The substrate 1110 can also include one or more alignment structures 1120 that can be coupled to or integrated within the substrate 1110. The alignment structures 1120 and operation thereof are described in greater detail below.
Attention is now directed to
The cell culture interface 1220 can further include a second layer 1260 and an optional third layer 1270. The second layer can be coupled to the first layer 1250. The optional third layer 1270 can be coupled to the first layer 1250. The second layer 1260 can be optically transparent. The third layer 1270 can be optically transparent. The second layer 1260 can be an optical filter. The third layer can be an optical filter. Where both a second layer 1260 and third layer 1270 are included and both are configured as optical filters, each layer can be the same optical filter or different optical filters. The second layer 1260 can be configured to contact a cell or cell culture. The third layer 1270 can be configured to contact a cell or cell culture. In some embodiments, the cell culture interface 1200 can be configured such that the second layer is disposed between the third layer 1270 and the first layer 1250. In other embodiments, the cell culture interface can be configured such that the third layer 1270 is sandwiched in disposed between the second layer 1250 and the first layer 1250. The cell culture interface 1200 can include one or more additional layers. The first, second, and optional third layer can be made of the same material and made at the same time such that they form substantially a single layer.
The cell culture interface 1200 can be configured to relay an energy between a cell and the electronic interface 1000. This relay can occur through the via(s). Where the via is an electrical via 1220, the via can extend through the second layer 1260, optional third layer 1270, and any other layer present in the cell culture interface 1200 that is between the first layer and the cell culture. The extension of the electronic via through the second layer 1260 and/or optional third layer 1270 can be flexible or inflexible wire bonds.
Any layer or component of the cell culture interface 1200 can be made out of any desired material. Suitable materials include, but are not limited to, plastics, other polymers and polymer composites, rubbers, resins, ceramics, glass, and any combination thereof. In some embodiments, the substrate includes polydimethylsiloxane (PDMS), polypropylene, and/or polystyrene. The layers can be made of the same material or different materials. In some embodiments, the material can be a low cost disposable material such as a plastic or glass. In some embodiments, the cell culture interface 1200 can be configured for single use. In other embodiments, the cell culture interface 1200 can be configured for multiple uses. In some embodiments, the cell culture interface 1200 can be configured such that it or parts thereof can be cleaned and/or sterilized between uses.
The layer that is configured to contact a cell and/or cell culture can be treated. As used herein the term “treated” refers to a modification of a surface that is used for cell culture that facilitates attachment and/or growth of the cell or cells in the cell culture. Exemplary modifications include, but are not limited to, poly-lysine and other treatments that render the surface hydrophilic. In some embodiments, the layer that is configured to contact a cell and/or cell culture can be coated with a natural or synthetic matrix (e.g. cellular matrix), cellular matrix component, fibronectin, blocking reagent, antibody, and/or other molecule (e.g. strepavidin) as desired. Other suitable coatings will be appreciated by those of skill in the art.
The cell culture interface 1200 can further include one or more interconnects 1240. See also
The cell culture interface 1200 can further contain one or more alignment structures 1230. The alignment structures 1230 can be coupled to or integrated within the first layer 1250. The alignment structures 1230 and their operation are discussed in further detail below.
With the description of embodiments of the cell culture interface 1200 in mind attention is directed to
In operation, cells can be cultured on the top surface of the cell culture interface 1200. An energy from a cells, cells, cell culture, or cell culture environment can be electrically and/or optically relayed to the electronic interface 1000 through the electronic and/or optical vias 1220, 1210 of the cell culture interface. A sensor in the electronic interface 1000 can detect the electrical or optical energy relayed from the cell by the cell culture interface 1200.
As shown in e.g.
The alignment structures can be located on any surface of the substrate 1110, electronic interface 1000, and/or the cell culture interface 1200. In embodiments, the substrate 1110 and the cell culture interface 1200 such that when the alignment structure(s) 1120 of the substrate are coupled to the alignment structure(s) 1230 of the cell culture interface 1200, the via(s) of the cell culture interface 1200 and any mechanical interconnects align with and/or electrically and/or optically couple with optical receiver 1050 and/or electrical contact(s) 1040 of the electronic interface 1000. In this way, the electronic interface 1000 can be easily self-aligned with the cell culture interface 1200. Further the alignment structures can be configured to allow the cell culture interface 1200 to removably couple to the electronic interface 1000 and/or substrate 1110.
In some embodiments, as shown in
Attention is now turned to
As is illustrated in
The devices and components thereof described herein can be manufactured by any suitable method and in any suitable way. Suitable methods include, but are not limited to, injection molding, 3-D printing, glass/plastic molding processes, optical fiber production process, casting, chemical deposition, electrospinning, machining, die casting, evaporative-pattern casting, resin casting, sand casting, shell molding, vacuum molding, thermoforming, laminating, dip molding, embossing, drawing, stamping, electroforming, laser cutting, welding, soldering, sintering, bonding, composite material winding, direct metal laser sintering, fused deposition molding, and stereolithography. Other techniques will be appreciated by those of skill in the art.
This application also claims the benefit of U.S. Provisional Application Ser. No. 62/080,774, filed on Nov. 17, 2014, the entirety of which is incorporated herein by reference.
Filing Document | Filing Date | Country | Kind |
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PCT/US15/61195 | 11/17/2015 | WO | 00 |
Number | Date | Country | |
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62080774 | Nov 2014 | US |