Abstract: Devices, systems, and methods for measuring an analyte are disclosed. A device, system, or method can include a radiofrequency sensor comprising a radiofrequency transmitter and a radiofrequency receiver. A device, system, or method can be configured to transmit a radiofrequency signal from the transmitter to the receiver through a culture medium comprising the analyte. In some embodiments, a device, system, or method can include a controller configured to determine a concentration of the analyte based on a resultant signal produced at the receiver. A device, system, or method can comprise a radiofrequency sensor introducer. An introducer of a device, system, or method can comprise a first sensor sheath configured to receive a radiofrequency transmitter and a second sensor sheath configured to receive a radiofrequency receiver. In some implementations, an introducer of a device, system, or method can be configured to maintain a separation between the transmitter and receiver.

Abstract: Systems and methods for handheld tubing welders are herein disclosed. In an embodiment, a handheld tubing welder can include a housing configured to be held by a user and a tubing retainer coupled to the housing. The tubing retainer can include a first and second retainer slot configured to receive and retain a first section of a first tubing and a second tubing, respectively. A tubing shifter can be positioned adjacent to the housing and the tubing retainer, the tubing shifter includes a first shifter slot and a second shifter slot that is configured to receive and retain a second section of the first tubing and a second section of the second tubing, respectively. A cutting element can be configured to be movable between the tubing shifter and the tubing retainer to cut the first and second tubing extending between the tubing shifter and tubing retainer.

Abstract: An aseptic cell culture system including a cell culture device is disclosed. The cell culture device includes an interior chamber having a first opening extending through a wall defining a part of the interior chamber, and a first aseptic port. The first aseptic port includes a first coupling end and a second coupling end, the first coupling end extending through the first opening and integrated with the wall. Further, the first aseptic port includes a fluid pathway in fluid communication with the interior chamber and extends between the first coupling end and the second coupling end. The second coupling end includes a connecting component configured to allow one or more of a fluid line and a filter to be connected to the first aseptic port.

Abstract: Solutions for leveling the surface of cookware are disclosed. In one embodiment, at least one detachable adjustable leg makes contact with the stove surface to tilt the cooking surface to make it level. The pressure on the stove surface can be increased or decreased, thereby increasing the tilt until the cooking surface is level. In another embodiment, at least one detachable adjustable leg is weighted at one end and the weighted end extends outward to make the cooking surface level. In yet another embodiment, the cookware comes with at least one adjustable leg permanently attached. In all cases, multiple adjustable legs can be used to increase the stability and accuracy. In another embodiment, adjustable legs protrude from the top or bottom surface of a grate that typically covers a flame on gas stove surface.

Abstract: Solutions for leveling the surface of cookware are disclosed. In one embodiment, at least one detachable adjustable leg makes contact with the stove surface to tilt the cooking surface to make it level. The pressure on the stove surface can be increased or decreased, thereby increasing the tilt until the cooking surface is level. In another embodiment, at least one detachable adjustable leg is weighted at one end and the weighted end extends outward to make the cooking surface level. In yet another embodiment, the cookware comes with at least one adjustable leg permanently attached. In all cases, multiple adjustable legs can be used to increase the stability and accuracy. In another embodiment, adjustable legs protrude from the top or bottom surface of a grate that typically covers a flame on gas stove surface.