Abstract: Disclosed herein is a computer-implemented method comprising aggregating PFAS remediation evaluation data for a plurality of remediation options and for a plurality of predefined criteria; graphically displaying the user modifiable chart comprising the plurality of graphical representations of the aggregated PFAS remediation evaluation data, wherein: each graphical representation depicts data points visually plotted with weights, the plurality of graphical representations for the plurality of predefined criteria are visually ordered according to a rank of the plurality of predefined criteria, and the weights are based on the rank of the plurality of predefined criteria; detecting a first user input modifying the rank of at least one predefined criterion; in accordance with the first user input, automatically updating the weights of the data points; and displaying an updated user modifiable chart comprising the plurality of graphical representations of the aggregated PFAS remediation evaluation data.

Abstract: A metered volume microfluidic device can include fluid flow microfluidics. The fluid flow microfluidics can include an inflow channel, a metered volume chamber positioned to receive working fluid from the inflow channel, a metered volume outflow channel positioned to receive and direct a metered volume of the working fluid when discharged from the metered volume chamber, and a capillary check valve. The capillary check valve can allow excess working fluid to exit the metered volume chamber when filling the metered volume chamber via the inflow channel. The capillary check valve can also prevent excess working fluid that has passed there through from being reintroduced into the metered volume chamber when the working fluid is discharged into the metered volume outflow channel.

Abstract: A sample preparation blister pack can include a plurality of reservoirs formed as blisters. The reservoirs can have an actuatable barrier layer and a seal barrier layer with contents of the reservoirs between the actuatable barrier layer and the seal barrier layer. The contents can be to facilitate isolating a biological component from a biological sample. The individual reservoirs can be adapted to release the contents through the seal barrier layer upon actuation of the actuatable barrier layer. The blister pack can have a width and a length and the reservoirs can be lined up along the length. In this example, a first reservoir contains an inert mechanical fluid and a second reservoir contains a reagent, a buffer, or a combination thereof.

Abstract: A fluidic device can include interconnected volumes including a bulk fluid volume fluidically connected in series with a capillary volume to receive a density gradient column, a reservoir of a reconstitution buffer positioned outside the interconnected volumes, and a buffer inlet chamber to receive reconstitution buffer from the reservoir of reconstitution buffer. The fluidic device can also include a reactant chamber connected to the buffer inlet chamber by a fluid channel, wherein the reactant chamber contains a reactant, and a reactant injection channel connecting the reactant chamber to the capillary volume to inject the reconstitution buffer and reactant into the capillary volume.

Abstract: A microfluidic valve can include a substrate having a microfluidic channel formed in the substrate. A sealing layer can be over the microfluidic channel. A flexible blister layer can be over the sealing layer. The flexible blister layer can include a blister formed as a distended portion with a blister volume between the flexible blister layer and the sealing layer. The microfluidic valve can be actuatable by puncturing the sealing layer by pressing on the blister. Actuating the microfluidic valve can either allow fluid to flow through the microfluidic channel or block fluid from flowing through the microfluidic channel.

Abstract: A metered volume microfluidic device can include fluid flow microfluidics. The fluid flow microfluidics can include an inflow channel, a metered volume chamber positioned to receive working fluid from the inflow channel, a metered volume outflow channel positioned to receive and direct a metered volume of the working fluid when discharged from the metered volume chamber, and a capillary check valve. The capillary check valve can allow excess working fluid to exit the metered volume chamber when filling the metered volume chamber via the inflow channel. The capillary check valve can also prevent excess working fluid that has passed there through from being reintroduced into the metered volume chamber when the working fluid is discharged into the metered volume outflow channel.

Abstract: A print liquid supply apparatus or interface structure to be connected to a print system comprises a liquid channel, liquid interface and integrated circuit contact pads.

Abstract: The present disclosure is drawn to an ink supply tank for a printer. The ink supply tank includes a main chamber to supply a printer with ink. The main chamber includes a fill port to receive ink during filling and an exchange port to release the ink. A chamber separator device is configured with a fill surface and a vent port. An overflow chamber can be configured with a vent to pass air into the overflow chamber, a first portion of air in the overflow chamber passes through the vent port of the chamber separator device to a feeder chamber to replace a second portion of ink leaving the ink supply tank to feed a print head and the vent port of the chamber separator device to pass a third portion of ink and a second portion of air from the feeder chamber to the overflow chamber.

Abstract: A print liquid supply apparatus or interface structure to be connected to a print system comprises a liquid channel, liquid interface and integrated circuit contact pads.

Abstract: A fluid ejection and circulation apparatus may include a fluid ejection device, a filter to filter fluid supplied to the fluid ejection device and a pressure regulator. The pressure regulator may include a fluid chamber having a fluid port and a first port extending from the fluid chamber to the filter. The pressure regulator may further include a valve to open and close the fluid port and a compliant chamber within the fluid chamber. The compliant chamber is to undergo different inflation levels in response to fluid chamber pressure. The valve is to open and close the fluid port in response to changes in an inflation level of the compliant chamber. The fluid chamber comprises a second port cooperating with the first port to form a circulation path through the fluid chamber that is directed away from the filter.

Abstract: A microfluidic valve can include a substrate having a microfluidic channel formed in the substrate. A sealing layer can be over the microfluidic channel. A flexible blister layer can be over the sealing layer. The flexible blister layer can include a blister formed as a distended portion with a blister volume between the flexible blister layer and the sealing layer. The microfluidic valve can be actuatable by puncturing the sealing layer by pressing on the blister. Actuating the microfluidic valve can either allow fluid to flow through the microfluidic channel or block fluid from flowing through the microfluidic channel.

Abstract: In one example, a liquid delivery system for an inkjet type dispenser includes: a printhead unit; a reservoir separate from the printhead unit; a flow path from the reservoir through the printhead unit and back to the reservoir; an interconnect to connect a removable liquid container to the flow path; and a single pump to pump ink along the flow path: from the reservoir through the printhead unit and back to the reservoir; and from the interconnect to the reservoir when a removable liquid container is connected to the interconnect.

Abstract: A printing device interface to receive a fluid supply may include a fluid dock arranged on an external surface of a housing of the printing device, the fluid dock further arranged to receive a mechanical interface of a fluid supply wherein the arrangement of the fluid dock on the external surface of the housing enables use of a center of mass and weight of the fluid supply to maintain a mechanical, fluidic, and electrical connection with the fluid supply.

Abstract: A print liquid supply apparatus or interface structure to be connected to a print system comprises a liquid channel, liquid interface and integrated circuit contact pads.

Abstract: A fluid ejection and circulation apparatus may include a fluid ejection device, a filter to filter fluid supplied to the fluid ejection device and a pressure regulator. The pressure regulator may include a fluid chamber having a fluid port and a first port extending from the fluid chamber to the filter. The pressure regulator may further include a valve to open and close the fluid port and a compliant chamber within the fluid chamber. The compliant chamber is to undergo different inflation levels in response to fluid chamber pressure. The valve is to open and close the fluid port in response to changes in an inflation level of the compliant chamber. The fluid chamber comprises a second port cooperating with the first port to form a circulation path through the fluid chamber that is directed away from the filter.

Abstract: A print liquid supply apparatus or interface structure to be connected to a print system comprises a liquid channel, liquid interface and integrated circuit contact pads.

Abstract: A printing device interface to receive a fluid supply may include a fluid dock arranged on an external surface of a housing of the printing device, the fluid dock further arranged to receive a mechanical interface of a fluid supply wherein the arrangement of the fluid dock on the external surface of the housing enables use of a center of mass and weight of the fluid supply to maintain a mechanical, fluidic, and electrical connection with the fluid supply.

Abstract: In one example, a liquid delivery system for an inkjet type dispenser includes: a printhead unit; a reservoir separate from the printhead unit; a flow path from the reservoir through the printhead unit and back to the reservoir; an interconnect to connect Na removable liquid container to the flow path; and a single pump to pump ink along the flow path: from the reservoir through the printhead unit and back to the reservoir; and from the interconnect to the reservoir when a removable liquid container is connected to the interconnect.

Abstract: A fluid ejection and circulation apparatus may include a fluid ejection die, the pressure regulator, a first standpipe, a second standpipe and a crossflow passage. The pressure regulator has a fluid chamber. The first standpipe is between the fluid chamber and the fluid ejection die. The first standpipe has a first port above the fluid ejection die. The second standpipe extends alongside the first standpipe. The second standpipe has a second port above the fluid ejection die. The crossflow passage connects the first standpipe and the second standpipe.

Abstract: The subject matter discloses a fluid cartridge comprising a container to hold a predetermined volume of fluid, and a lid for closing the container. The lid comprises a valve-recess and an inlet valve in the valve-recess to transfer a volume of a replacement fluid in the container for replacing depleted volume of fluid in the container. A rocker valve is pivoted in the valve-recess to cover the inlet valve during a regulation phase. The rocker valve is to open the inlet valve during an actuation phase to allow the replacement fluid to enter the container. A spring element is movably disposed on the rocker valve to control actuation of the rocker valve for opening and closing the inlet valve. The spring element slides across the rocker valve, from a regulation zone of the rocker valve to an actuation zone of the rocker valve, to open the inlet valve.