摘要:
Es wird ein Halter (1) für einen Zellenkulturbehälter (5), aufweisend eine Grundfläche (2), eine Erhebung (3), einen an der Erhebung (3) befestigten Bereich mit einer Aussparung (9) für den Zellenkulturbehälter (5) vorgestellt. Dabei ist die Aussparung (9) so ausgebildet, dass der Zellenkulturbehälter (5) in die Aussparung (9) eingeschoben werden kann und die Aussparung einen Teil des Zellenkulturbehälters (5) umgibt, während ein anderer Teil des Zellenkulturbehälters (5) nicht von der Aussparung (9) umgeben ist und mit einem Mikroskop betrachtet werden kann, so dass beobachtbar ist, ob im Zellenkulturbehälter (5) eine Probe mit einer Zelle vorhanden ist
摘要:
In this invention we propose a method to compose a stem cell culture niche platform, which is based on the use of the human amniotic membrane. Fluid dynamic, mechanical and topographic factors are additionally included in this niche to provide various factors essential for achieving an enhanced biomimetic micro environment of the cultured stem cells. The amniotic membrane is mounted into various types of culture platforms to suit a wide range of research applications. The rich composition of the membrane with anti-inflammatory, anti microbial, matrix and adhesion molecules in addition to various growth factors suits its application as a complex biomimetic material. The platform includes micro channels to allow continuous exchange of media and creates a dynamic flow of the fluid surrounding the cells in an attempt to simulate the in vivo conditions in which the stem cell typically reaches its ideal proliferation, expansion or differentiation. The method disclosed herein supports a wide range of applications in stem cell research such as the investigation of the optimal conditions for stem cell culture and the effect of various medications and external factors. It can be also applied in investigating the effect of the amniotic membrane and the mechanical factors on the behavior of stem cells and cancer stem cells. Another model of the niche is proposed as an in vivo moldableand implantable carrier for delivering stem cell based therapies in a wide range of diseases especially those associated with aging or decline of specialized cell function such as diabetes, cardiovascular, neurological, hormonal, renal and liver disorders, cancer, and diseases associated with inflammation and disordered immunity. Furthermore, the lack of HLA molecules renders the membrane naive to minimize rejection, which could be valuable for transplantation purposes.
摘要:
A station for culturing biological cells in a microfluidic device is provided. The station includes one or more thermally conductive mounting interfaces, each mounting interface configured for having a microfluidic device detachably mounted thereon; a thermal regulation system configured for controlling a temperature of microfluidic devices detachably mounted on the one or more mounting interfaces; and a media perfusion system configured to controllably and selectively dispense a flowable culturing media into microfluidic devices detachably mounted on the one or mounting interfaces.
摘要:
In alternative embodiments, provided are genetically or recombinantly engineered nitrogen-fixing, nitrogenase expressing bacteria capable of enzymatically synthesizing hydrocarbons, and methods for making and using them. In alternative embodiments, provided are genetically or recombinantly engineered nitrogen-fixing, nitrogenase expressing bacteria including nitrogen-fixing diazotrophs such as nitrogen-fixing bacteria of the family Pseudomonadaceae , or the genus Azotobacter , for the whole cell synthesis of hydrocarbons and carbon-carbon bonds. In alternative embodiments, nitrogen-fixing, nitrogenase-expressing bacteria used to practice the invention are genetically or recombinantly engineered to express an exogenous nitrogenase express more endogenous nitrogenase or have increased nitrogenase, activity. In alternative embodiments, nitrogen-fixing, nitrogenase-expressing bacteria used to practice the invention are genetically or recombinantly engineered to lack or have decreased molybdenum transporter activity. In alternative embodiments, provided are culture systems, fermenters and bioreactors using nitrogen-fixing, nitrogenase-expressing bacteria for enzymatically synthesizing hydrocarbons.
摘要:
This disclosure provides a cell culture media extending material capable of releasing nutrients into the cell culture environment slowly over time. In embodiments, this material is a part of a cell culture vessel. In embodiments, the material is a coating or a film on a surface of a cell culture material. In additional embodiments, the material is a surface upon which cells are cultured, such as a cell culture vessel or a microcarrier.
摘要:
Aspects of the disclosure relate to bioreactors for maintaining biological objects (e.g., organ or engineered tissues) under culture conditions. In some embodiments, bioreactors and cover assemblies are provided that comprise a support base for supporting a biological object. In some embodiments, bioreactors and cover assemblies are provided that comprise a movable support base configured such that a user can manipulate its position and thus the relative position of the biological object.
摘要:
Devices and methods for culture of cells are provided. The devices can comprise a three- dimensional body having multiple two-dimensional surfaces extending inwardly from a periphery of the three-dimensional body towards an interior of the three-dimensional body, wherein the multiple two-dimensional surfaces are configured to support monolayer growth of eukaryotic cells over at least a majority of or all of the surface area of the multiple two- dimensional surfaces.