A cell culture substrate having a high cell-adhesion portion and a low cell-adhesion portion, wherein; an adhesiveness to a cell of the high cell-adhesion portion and an adhesiveness to a cell of the low cell-adhesion portion are different from each other, the adhesiveness to the cell of the high cell-adhesion portion to cells is higher than the adhesiveness of the low cell-adhesion portion to the cell; and the high cell-adhesion portion has a cell adhesion layer containing two or more kinds of cell adhesion substances on the surface.

Compositions, devices and methods are described for improving adhesion, attachment, and/or differentiation of cells in a microfluidic device or chip. In one embodiment, one or more ECM proteins are covalently coupled to the surface of a microchannel of a microfluidic device. The microfluidic devices can be stored or used immediately for culture and/or support of living cells such as mammalian cells, and/or for simulating a function of a tissue, e.g., a liver tissue, muscle tissue, etc. Extended adhesion and viability with sustained function over time is observed.

A cell culture substrate including a fibrous web in which fibers are integrated, and a cell culture coating layer comprising a coating film connecting at least some fibers from among fibers positioned on one surface of the fibrous web, wherein the cell culture coating layer is realized through a fusion protein for cell culture in which a functional peptide is bound to a mussel adhesive protein. Thus, the substrate can be stored at room temperature for a long period of time, i.e., several years, despite containing protein-like substances that aid in cell culture, and thus exhibits very high storage stability. At the same time, the activity of substances that aid in cell culture is maintained at the same level or is reduced only minimally, thus enabling cell culture at an initially designed level.

Disclosed herein are methods of inducing endothelial cell reorganization or differentiation to form micro- and macrovessel structures using an extracellular matrix, such as one derived from small mobile stem (SMS) cells, and a substrate, which can also be coated in molecules or otherwise physically manipulated to cause localized effects on reorganization Also disclosed is a kit implementation for performing endothelial cell reorganization.

A device for aggregating cells includes a cavity. The cavity includes a plurality of microwells for receiving at least one cell. Each of the microwells includes a vertical sidewall and a curved bottom. The microwells are made in a hydrogel layer. Each of said microwells has a diameter and an interwell distance between one microwell and another microwell, wherein a ratio for the interwell distance to the diameter is less than or equal to 1/10.

Nano- to microscale liquid coacervate particles are provided. The liquid coacervate particles are produced by a process including stimulating a population of liquid droplets containing one or a mixture of components to induce a phase separation point of a first component, and maintaining stimulation at the phase separation point to form a coacervate domain of the first component within each of the droplets to form the liquid coacervate particles. The self-assembled nano, meso, micro and macro liquid coacervate particles and related coated substrates can have utility in drug delivery, bioanalytical systems, controlled cell culture, tissue engineering, biomanufacturing and drug discovery.

The present invention provides a cell culture substrate including a polymer having a lower critical solution temperature, the substrate including one or more inorganic materials selected from a water-swellable clay mineral and silica and further including an adhesive matrix in the substrate, in which the adhesive matrix is an extracellular matrix and/or an adhesive synthetic matrix. Furthermore, the invention is to provide a cell culture substrate in which the extracellular matrix is at least one selected from laminin, fibronectin, vitronectin, cadherin, and fragments thereof, and/or the adhesive synthetic matrix is poly[2-(methacryloyloxy)ethyl dimethyl-(3-sulfopropyl) ammonium hydroxide] or an oligopeptide-supporting polymer.

A microwell device and a method of manufacturing the same are provided. The microwell device includes a substrate and a plurality of microwells formed on the substrate. In addition, each of the microwells includes a cavity being recessed on the substrate and an opening, and the diameter of the opening is smaller than the largest inner diameter of the cavity. Furthermore, the microwells are curved.

A three-dimensional cell growth containment article is described, which includes a molded body channelized by removal of sacrificial channelizing element(s) therefrom, so that the molded body contains one or more channel(s) therein, with a matrix material in at least one of such channel(s) that is supportive of three-dimensional cell growth in the matrix material. A method for making such articles is also described, in which a molded body is formed with one or more sacrificial channelizing element(s) therein, following which the sacrificial channelizing element(s) are removed. The three-dimensional cell growth containment articles of the present disclosure may be utilized in any applications in which there exists a need to reproducibly generate three-dimensional cellular structures, e.g., islet transplantation for diabetes treatment, transplantation of hormone secreting cells, cellular scaffolds for wound healing, and generation of tissue engineering structures to regain structural usefulness for orthopedic applications.

Provided is an antibacterial agent-containing dried plate having no cracks on an observation surface (a part of the plate corresponding to an observation visual field of a microscope). According to the present embodiment, an antibacterial agent-introduced plate obtained by introducing an antibacterial agent and performing vacuum drying has a recess at an edge of a well, and a microscopic observation portion, which has a surface substantially parallel to a well bottom surface, near the center of the well. The recess is provided between the microscopic observation portion and a side wall of the well, and is lower in height than the microscopic observation portion. Further, at least the bottom surface of the well and the microscopic observation portion are made of a material having a light-transmitting property in order for optical measurement (FIG. 1).