摘要:
The present invention relates to a method for producing a structure modeled on a biological tissue. The invention also relates to a structure which can be produced using the method according to the invention. According to an embodiment of the invention, a precursor of a biopolymer is locally irradiated with electromagnetic radiation in a targeted manner, wherein the irradiation, in particular the selection of the areas to be irradiated, is effected according to data which describe a structural construction at least components of the extracellular matrix of the biological tissue. In this case, the electromagnetic radiation is such that two-photon or multi-photon absorption takes place in the irradiated areas of the precursor and results in the precursor being polymerized to form the biopolymer in the irradiated areas, with the result being that the precursor is at least partially solidified there.
摘要:
The present invention relates to a method for producing a structure modeled on a biological tissue. The invention also relates to a structure which can be produced using the method according to the invention. According to an embodiment of the invention, a precursor of a biopolymer is locally irradiated with electromagnetic radiation in a targeted manner, wherein the irradiation, in particular the selection of the areas to be irradiated, is effected according to data which describe a structural construction at least components of the extracellular matrix of the biological tissue. In this case, the electromagnetic radiation is such that two-photon or multi-photon absorption takes place in the irradiated areas of the precursor and results in the precursor being polymerized to form the biopolymer in the irradiated areas, with the result being that the precursor is at least partially solidified there.
摘要:
The present invention relates to a microbioreactor comprising a sample support (7) for holding cells; a bypass (3) with a capillary opening for feeding test reagent and/or for aeration and ventilation of the microbioreactor; a pump module (5) for perfusion of the microbioreactor with test reagent and/or gas feeding and purging of the microbioreactor; a transparent viewing window (2); and fluid channels (4) that form a circuit. The invention further relates to a bioreactor-microtiter plate comprising a plurality of such microbioreactors.
摘要:
The invention relates to a partially active microfluidic system for cell cultivation comprising a multiwell system (4) with multiple wells (17) and cavities formed therein that hold cells. Each cavity (11) is formed by at least one inlay (3) comprising an opening (1) that does not open up directly into the cavity (11), but rather into a space (17) surrounding the cavity, wherein the medium present in the surrounding space communicates with the medium contained in the cavity (11) by way of a sieve structure in the inlay. The invention is suitable in particular for 3D cell cultivation.
摘要:
A method for producing a support possessing a functionalized surface which is suitable for immobilizing viruses and carrying viruses which are immobilized on the functionalized surface and which are preferably infectious, as well as the use of such supports, are described. In this connection, a support material is initially provided and at least one surface of the support material is then coated, preferably with a nitrocellulose material, in order to form the functionalized surface. In a following step, a solution which contains viruses, which are preferably infectious, is applied to the functionalized surface, after which the viruses are subsequently enabled to adhere to the functionalized surface over a period of from preferably 10 minutes to 36 hours. After that, the surface is, where appropriate, covered with a fluid.