Abstract: Embodiments described herein generally relate to devices, systems and methods for measuring the dose remaining in a drug delivery device that is used for delivering a dose to a patient. In some embodiments, a dose measurement system for measuring the liquid volume in a container includes a plurality of light sources which are disposed and configured to emit electromagnetic radiation toward the container. A plurality of sensors are located in the apparatus that are optically coupleable to the plurality of light sources and are disposed and configured to detect the electromagnetic radiation emitted by at least a portion of the light sources. The apparatus also includes a processing unit configured to receive data representing the portion of the detected electromagnetic radiation from each of the plurality of sensors. The processing unit is further operable to convert the received data into a signature representative of the electromagnetic radiation detected by the plurality of sensors.

Abstract: A peritoneal dialysis fluid generation system including water purification equipment configured to provide purified water; a presterilized tubing set including a container for storing peritoneal dialysis fluid; at least one glucose or buffer concentrate; and a hemodialysis machine in fluid communication with the water purification equipment. The hemodialysis machine includes at least one mixing pump for mixing the at least one glucose or buffer concentrate with the purified water to form peritoneal dialysis fluid, a dialysis fluid pump for delivering the peritoneal dialysis fluid to the container, and a control unit configured to control the at least one mixing pump to form the peritoneal dialysis fluid and the dialysis fluid pump to deliver the peritoneal dialysis fluid to the container.

Abstract: A medical fluid generation system is disclosed. In an example, a peritoneal dialysis fluid generation system includes water purification equipment configured to provide purified water; a presterilized tubing set including a container for storing peritoneal dialysis fluid; at least one glucose or buffer concentrate; and a hemodialysis machine in fluid communication with the water purification equipment. The hemodialysis machine includes at least one mixing pump for mixing the at least one glucose or buffer concentrate with the purified water to form peritoneal dialysis fluid, a dialysis fluid pump for delivering the peritoneal dialysis fluid to the container, and a control unit configured to control the at least one mixing pump to form the peritoneal dialysis fluid and the dialysis fluid pump to deliver the peritoneal dialysis fluid to the container.

Abstract: The invention relates to a method for modifying a template double stranded polynucleotide, especially for characterisation using nanopore sequencing. The method produces from the template a plurality of modified double stranded polynucleotides. These modified polynucleotides can then be characterised.

Abstract: The invention relates to a new method of sequencing a double stranded target polynucleotide. The two strands of the double stranded target polynucleotide are linked by a bridging moiety. The two strands of the target polynucleotide are separated using a polynucleotide binding protein and the target polynucleotide is sequenced using a transmembrane pore.

Abstract: Kits for assessing a proportion of supercoiled plasmid DNA compared to linear plasmid DNA, and/or a contaminant, in a fluid sample containing plasmid DNA according to aspects of the present disclosure include: a DNA reference standard including supercoiled pDNA and/or linear pDNA. Methods of assessing double-stranded plasmid DNA in a fluid sample according to aspects of the present disclosure include comparing characteristics of double-stranded plasmid DNA in a fluid sample to a reference standard representative of one or both of: supercoiled plasmid DNA and linear plasmid DNA, wherein the reference standard includes 1) at least two fragments of supercoiled pDNA of specified sizes and/or 2) at least two fragments of linear pDNA of specified sizes.

Abstract: The invention relates to a method of characterising a target polynucleotide using a single-stranded binding protein (SSB). The SSB is either an SSB comprising a carboxy-terminal (C-terminal) region which does not have a net negative charge or a modified SSB comprising one or more modifications in its C-terminal region which decreases the net negative charge of the C-terminal region.

Abstract: The invention relates to an improved method for characterising a template polynucleotide. The method involves using a polymerase to prepare a modified polynucleotide which makes it easier to characterise that the template polynucleotide.

Abstract: The invention relates to a new method of characterising two or more target polynucleotides using a pore. The method involves sequentially attaching to a first polynucleotide one or more subsequent polynucleotides to form a concatenated polynucleotide.

Abstract: The invention relates to a new method of determining the presence, absence or one or more characteristics of multiple analytes. The invention concerns coupling a first analyte to a membrane containing a detector and investigating the first analyte using the detector. The invention also concerns coupling a second analyte to the membrane and investigating the second analyte. The first analyte is uncoupled form the membrane prior to investigating the second analyte. The invention also relates to polynucleotide sequencing.

Abstract: The invention provides a method of detecting a target polynucleotide in a sample comprising: (a) contacting the sample with a guide polynucleotide that binds to a sequence in the target polynucleotide and a polynucleotide-guided effector protein, wherein the guide polynucleotide and polynucleotide-guided effector protein form a complex with any target polynucleotide present in the sample; (b) contacting the sample with a membrane comprising a transmembrane pore; (c) applying a potential to the membrane; and (d) monitoring for the presence or absence of an effect resulting from the interaction of the complex with the transmembrane pore to determine the presence or absence of the complex, thereby detecting the target polynucleotide in the sample.

Abstract: Methods of assessing double-stranded plasmid DNA isoforms to determine a proportion of supercoiled plasmid DNA compared to linear plasmid DNA, and/or open circle plasmid DNA are provided according to aspects of the present disclosure, which include: preferentially labelling double-stranded plasmid DNA; flowing the labeled double-stranded plasmid DNA through a polymeric separation medium in a microchannel into a detection region; detecting the detectable label to determine: a) an amount of time taken by the labeled plasmid DNA isoforms to flow through the polymeric separation medium in the microchannel into the detection region, and/or b) strength of the signal of the detectable label in the detection region; and comparing a) and/or b) to a reference standard thereby determining a proportion of supercoiled plasmid DNA compared to linear plasmid DNA, and/or open circle plasmid DNA in the fluid sample comprising plasmid DNA.

Abstract: Methods of characterizing an analyte using a nanopore. One aspect features methods for characterizing a double-stranded polynucleotide using a nanopore, e.g., without using a hairpin connecting a template and a complement of the double-stranded polynucleotide. Another aspect features methods for characterizing an analyte using a tag-modified nanopore with increased sensitivity and/or higher throughput. Compositions and systems including, e.g., adaptors for attachment to double-stranded polynucleotides and tag-modified nanopores, which can be used in the methods are also provided.

Abstract: A mobile dialysis fluid generation system includes a cargo unit configured to be transported by a vehicle; a cleanroom located inside the cargo unit; water purification equipment; at least one dialysis fluid preparation unit located inside the cleanroom; and at least one area provided outside the cleanroom but inside the cargo unit for storing at least one of a raw material or containers filled with dialysis fluid. The at least one dialysis fluid preparation unit includes at least one concentrate, a mixing device configured to receive purified water from the water purification equipment and to mix the purified water with the at least one concentrate to form dialysis fluid, and a tubing set for transfer of the dialysis fluid from the mixing device to a container positioned and arranged to receive the dialysis fluid.

Abstract: The invention relates to a new method of determining the presence, absence or characteristics of an analyte. The analyte is coupled to a membrane. The invention also relates to nucleic acid sequencing.

Abstract: The invention relates to a new method of characterising a target ribonucleic acid (RNA) involving forming a complementary polynucleotide. The method uses a transmembrane pore.

Abstract: An apparatus for measuring liquid volume in a container includes a plurality of light sources for emitting electromagnetic radiation (EMR) toward the container, a plurality of sensors optically coupleable to the plurality of light sources, each sensor of the plurality of sensors for detecting the EMR emitted by at least a portion of the plurality of light sources, a temperature sensor for measuring at least one temperature associated with a liquid in the container, and at least one processor for receiving data representative of the portion of the detected EMR from each of the plurality of sensors, comparing the at least one measured temperature to a temperature guideline to identify any temperature events associated with the received data; normalizing the received data based on any temperature events associated with the received data; and converting the normalized data into a signature representative of the EMR detected by the plurality of sensors.

Abstract: The invention relates to a method of characterising a target polynucleotide using a single-stranded binding protein (SSB). The SSB is either an SSB comprising a carboxy-terminal (C-terminal) region which does not have a net negative charge or a modified SSB comprising one or more modifications in its C-terminal region which decreases the net negative charge of the C-terminal region.

Abstract: The invention relates to an improved method for characterising a template polynucleotide. The method involves using a polymerase to prepare a modified polynucleotide which makes it easier to characterise than the template polynucleotide.

Abstract: The invention relates to a new method of determining the presence, absence or characteristics of an analyte. The analyte is coupled to a membrane. The invention also relates to nucleic acid sequencing.