A serological pipet for use with liquid handling may include a tip and a mounting portion with at least two sections with substantially circular cross-sections configured to fit into a pipet controller holder, the mounting portion may include a porous filter, The pipet may also include a tubular shaft with permanently marked volume indicating graduation marks. The tubular shaft may connect the tip and the mounting portion. A first section of the at least two sections and a second section of the at least two sections may have different diameters and a distance between the first section and the second section may be dimensioned to inscribe a cone having an angle of 11 degrees plus or minus 5 degrees. The tip, the mounting portion, and the tubular shaft may be made out of plastic resin.

A serological pipet for use with liquid handling may include a tip and a mounting portion with at least two sections with substantially circular cross-sections configured to fit into a pipet controller holder, the mounting portion may include a porous filter. The pipet may also include a tubular shaft with permanently marked volume indicating graduation marks. The tubular shaft may connect the tip and the mounting portion. A first section of the at least two sections and a second section of the at least two sections may have different diameters and a distance between the first section and the second section may be dimensioned to inscribe a cone having an angle of 11 degrees plus or minus 5 degrees. The tip, the mounting portion, and the tubular shaft may be made out of plastic resin.

A computer-implemented control device for controlling an automated pipetting system. The control device is designed to control at least one actuator for moving a pipetting apparatus between receptacle devices for liquids that are to be pipetted. The control device is designed, so as, before the execution of multiple specified transfer steps by the pipetting apparatus and the actuator, to analyze the specified order of execution of these transfer steps and the liquid to be pipetted in these transfer steps and, after the analysis, to alter the order of execution of these transfer steps and/or to combine multiple instances of these transfer steps automatically. Additionally, an automated pipetting system has such a control device, and a method for controlling the automated pipetting system are provided.

The invention relates to a pipetting device with a touch screen and a system comprising said pipetting device. The operating concept of this pipetting device provides that values of pipetting parameters can be set by the user on at least one input screen page, that actuation of the actuating element leads to the display of an output screen page and to the start of a pipetting operation defined according to the pipetting parameters, and that touching a separate input field of the output screen page leads back to an input screen page.

Highly efficient and rapid filtration-based concentration devices, systems and methods are disclosed with sample fluidic lines and a filter packaged in a disposable tip which concentrates biological particles that are suspended in liquid from a dilute feed suspension. A sample concentrate or retentate suspension is retained while eliminating the separated fluid in a separate flow stream. The concentrate is then dispensed from the disposable tip in a set volume of elution fluid. Suspended biological particles include such materials as proteins/toxins, viruses, DNA, and/or bacteria in the size range of approximately 0.001 micron to 20 microns diameter. Concentration of these particles is advantageous for detection of target particles in a dilute suspension, because concentrating them into a small volume makes them easier to detect and identify. A single-use pipette tip includes fluid ports for aspirating the sample and connecting to a concentrating unit.

Highly efficient and rapid filtration-based concentration devices, systems and methods are disclosed with sample fluidic lines and a filter packaged in a disposable tip which concentrates biological particles that are suspended in liquid from a dilute feed suspension. A sample concentrate or retentate suspension is retained while eliminating the separated fluid in a separate flow stream. The concentrate is then dispensed from the disposable tip in a set volume of elution fluid. Suspended biological particles include such materials as proteins/toxins, viruses, DNA, and/or bacteria in the size range of approximately 0.001 micron to 20 microns diameter. Concentration of these particles is advantageous for detection of target particles in a dilute suspension, because concentrating them into a small volume makes them easier to detect and identify. A single-use pipette tip includes fluid ports for aspirating the sample and connecting to a concentrating unit.

Grip support devices for use with a manually operated handheld pipette, e.g., a micropipette, to reduce strain on the user's hand during operation of the pipette are provided. The grip support devices include an adjustable strap for supporting the pipette on the user's hand, and which may be adjusted to accommodate various user hand sizes. In some embodiments, the strap may be removably coupled to the grip support device in various configurations to accommodate both a right-handed user and a left-handed user. In addition, the grip support device may include an extended portion to provide additional support to the thenar region of the user's hand, e.g., during gripping of the pipette.