The invention discloses a bioreactor with a vessel defining an inner volume, agitation means and at least one addition tube, wherein a delivery orifice in the addition tube is located within the inner volume and a check valve is arranged in proximity of the delivery orifice for allowing flow of a fluid in the direction from the addition tube into the inner volume of the vessel and blocking flow in the reverse direction.

A modular engineered tissue construct includes a plurality of fused self-assembled, scaffold-free, high-density cell aggregates. At least one cell aggregate includes a plurality of cells and a plurality of biocompatible and biodegradable nanoparticles and/or microparticles that are incorporated within the cell aggregates. The nanoparticles and/or microparticles acting as a bulking agent within the cell aggregate to increase the cell aggregate size and/or thickness and improve the mechanical properties of the cell aggregate as well as to deliver bioactive agents.

A method for producing tissue constructs comprising two or more distinct regions, each of which comprises a different cell population or lineage is described. The method involves providing a support substrate or substrate assembly comprising two or more physically distinct regions, wherein the two or more physically distinct regions of the support substrate or substrate assembly are different from each other; and depositing/positioning one or more cells on the support substrate or substrate assembly. The cells can form a continuous monolayer with at least two zones, e.g., a proliferative zone and a nonproliferative zone, that can act as in vitro intestinal models. The models are two-dimensional, thus facilitating rapid and facile imaging Systems comprising the tissue constructs and methods of using the constructs to study the effects of pharmaceuticals, uutraceuticais, and metabolites on intestinal cells are also described.

To facilitate production of “regenerative medicine products” using a quality by design (QbD) approach. In one embodiment of the present invention, a production device which produces a medical product and analyzes a starting material and a central management device which determines processing conditions in the production device are provided separately. In addition, by transmitting and receiving data and the like pertaining to the starting material between the production device and central management device data, the medical product is produced while production conditions therefor are continuously optimized. Thus, it is easy to produce a medical product while reducing or eliminating effects from changes in cells and tissues over time, from oscillation during transport, and from changes in surrounding environment such as changes in temperature, and to produce the desired medical product even when there are individual differences in the starting material.

Disclosed is a method of producing reconstructed human skin, and particularly a method of producing reconstructed human skin using a culture vessel including an inner chamber surrounded by an inner wall and a porous bottom surface and an outer chamber spaced apart from the inner chamber and configured to surround the inner chamber, including forming an adhesive layer by coating the inner wall with an adhesive material and culturing reconstructed human skin in the culture vessel having the adhesive layer formed thereon.

A system for injecting a substance into one or more cells of a cell population in a tissue sample, comprising: a robotic manipulator apparatus configured to hold and position a micropipette; an injector controller; a robotic apparatus configured to manipulate a focal plane of a microscope; and a computing device configured to, for each respective cell of the one or more cells of the tissue sample: determine a 3-dimensional location of the respective cell based on images formed by the microscope and captured by a microscope camera; control the robotic manipulator apparatus to insert the micropipette into the respective cell; and control injector controller to eject the substance out of the micropipette and into the respective cell.

The present disclosure provides a method of producing uniformly sized organoids/multicellular spheroids using a microfluidic device having an array of microwells. The method involves several successive steps. First, a microfluidic device containing parallel rows of microwells that are connected with a supplying channel is filled with a wetting agent. The wetting agent is a liquid that is immiscible in water. For example, the wetting agent may be an organic liquid such as oil. In the next step, the agent in the supplying channel and the microwells is replaced with a suspension of cells in an aqueous solution that contains a precursor for a hydrogel. Next, the aqueous phase in the supplying channel is replaced with the agent, which leads to the formation of an array of droplets of cell suspension in the hydrogel precursor solution, which were compartmentalized in the wells. The droplets are then transformed into cell-laden hydrogels. Subsequently, the agent in the supplying channel is replaced with the cell culture medium continuously flowing through the microfluidic device and the cells within the hydrogels are transformed into multicellular spheroids.

Provided herein are systems and methods for preserving and transporting tissues for transplantation. In particular, tissue to be implanted is encapsulated in an alginate gel, which is exposed to culture medium to improve cell viability and suppress inflammatory factors during long-term storage and transport.

In an aspect, disclosed herein are physiological devices and systems, and components thereof, used to evaluate cardiac parameters and arrhythmogenic mechanisms. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Aspects of the disclosure relate to rotating bioreactors and articles and methods that are useful for adapting a rotating bioreactor for use with tissues or scaffolds of different sizes. In some embodiments, bioreactors comprising a reservoir and an arbor assembly are provided herein, in which the arbor assembly comprises a rotatable support to which a tissue or tissue scaffold can be attached.