Abstract: A device is provided by means of which biomolecules in samples in a volume range from <1 ?l to 500 ?l can be received, treated and stored in a quick, reproducible and loss-free manner as easily, effortlessly and practically as possible, and without any risk of damaging the device. The device includes sample vessels that are configured, in terms of size and shape, as dimensionally and positionally stable capillaries that are open at both ends, the longitudinal walls of which are completely or partially made of a semi-permeable membrane.

Abstract: A device is provided by means of which biomolecules in samples in a volume range from <1 ?l to 500 ?l can be received, treated and stored in a quick, reproducible and loss-free manner as easily, effortlessly and practically as possible, and without any risk of damaging the device. The device includes sample vessels that are configured, in terms of size and shape, as dimensionally and positionally stable capillaries that are open at both ends, the longitudinal walls of which are completely or partially made of a semi-permeable membrane.

Abstract: The invention relates to pressure-proof glass bodies (3) composed of two half-spheres (1,2) comprising or not a cylindrical intermediate part (10) and having complementary surfaces (4) which are brought into contact with each other, whereby the outer surfaces of a formed seam are even and flat. The glass elements are assembled in a non detachable way by gluing them together with a curable glue which is applied to said complementary surfaces. A glued seam (6) which is formed, for example, by a light or heat-curable glue, can be covered with a permanently elastic sealing material and then with a band and/or tape. The inventive glass bodies are characterized in that they are simple to manufacture and safe to operate when they are used in the oceanographic field.

Abstract: Pressure-resistant glass body (3) comprising two hemispheres (1, 2), with or without a cylindrical intermediate element (10), with matching surfaces (4) which are brought into contact with one another, with the result that the outer surfaces are smooth and flush at a seam, the glass parts being connected to one another in a non-releasable manner at said matching surfaces (4) by adhesive bonding using a curing adhesive. The adhesive-bonding seam (6), which is produced for example by a light-curing or heat-curing adhesive, may be covered by a permanently elastic sealing compound and then by a tape. The glass bodies according to the invention are distinguished by straightforward production and a high level of operational reliability for oceanographic use.

Abstract: A process for the production of a device is disclosed which is suitable for holding semiconductor disks (wafers) during diverse, preferably thermal, machining processes and for transporting semiconductor disks between different machining stations and which is formed of a plurality of individually pre-manufactured device parts that are assembled and connected with one another. The invention is further directed to a holding device for semiconductor disks which is manufactured by the production process according to the invention. In a process of the type described above, the device parts are first pre-manufactured separately and independent from one another from single-crystal or polycrystalline silicon and, in so doing, are provided with fitting surfaces which correspond to one another.