Facing rings - Import export

Cloning cylinders or rings are ideally suited for separate cloning if individual cells or cell groups on a nutrient solution. A specific cell or cell group is separated from the other cells in the nutrient solution by simply placing the cloning ring over it. The rings are made of high-grade borosilicate glass, and can be thermally sterilized without problems. The ring faces are ground perfectly flat, enabling the rings to be fixed e.g. to the floor of a Petri dish by means of a suitable grease. Subsequently, the nutrient solution is filled into the ring. The grease provides a seal between the ring and the Petri dish, whereby the precision-ground flat end ensures that very little grease is required to provide an optimum seal. The same applies in the case of Petri dishes prepared with a nutrient solution – here, the seal is provided simply by pressing the ring into the solution and down to the floor of the dish. Cloning cylinders