The invention is an improved multiplex capillary electrophoresis instrument or module with at least four and preferably six user-accessible vertically stacked drawers. An x-z stage moves samples from the user accessible drawers to the capillary array for analysis. An additional mechanical stage moves the array from side-to-side. The x-z stage, coupled with the additional array stage allows the system to sample all wells of a 384 well plate with a 96-capillary array. A computer program allows users to add capillary electrophoresis jobs to a queue corresponding to the analysis of rows or plates of samples without stopping or interrupting runs in progress.

A biological analysis device for performing capillary electrophoresis includes a voltage section configured to generate a voltage differential across a cathode connector and an anode connector, an optical detector system configured to detect light emission from a sample, a temperature regulation section, and a cartridge holding portion configured to receive at least a portion of a removable cartridge comprising one or more capillaries and a separation medium container. The biological analysis device may include one or more actuators configured to actuate components of the removable cartridge when the removable cartridge is received in the cartridge holding portion. Devices and methods relate to biological analysis.

A method for recovering a biological substance and a device for recovering a biological substance capable of improving a recovery rate of a target biological substance with a simple configuration are provided. The method for recovering a biological substance uses an electrophoresis device having a gel 13 and recovery holes 11 and 111. The method for recovering a biological substance includes a step of starting application of a voltage for moving a target biological substance toward the recovery hole, after that, a step of removing buffer solution in the recovery hole before the target biological substance reaches the recovery hole, after that, a step of injecting a solvent into the recovery hole, and, after that, a step of recovering the target biological substance that reaches the recovery hole.

Compositions, systems, and methods for detecting events are provided. A composition can include a nanopore including a first side, a second side, and an aperture extending through the first and second sides; and a permanent tether including head and tail regions and an elongated body disposed there between. The head region can be anchored to or adjacent to the first or second side of the nanopore. The elongated body including a reporter region can be movable within the aperture responsive to a first event occurring adjacent to the first side of the nanopore. For example, the reporter region is translationally movable toward the first side responsive to the first event, then toward the second side, then toward the first side responsive to a second event. The first event can include adding a first nucleotide to a polynucleotide. The second event can include adding a second nucleotide to the polynucleotide.

In order to provide a piston and a syringe with good sliding performance and pressure resistance performance, the piston contained in the syringe that pressurizes or decompresses an internal medium is configured such that a soft portion made of a soft material and a rigid portion made of a material having rigidity higher than rigidity of the soft portion, are connected in series, and arranged such that the soft portion is in contact with the medium and the rigid portion is not in contact with the medium. The soft portion includes a hollow on a surface in contact with the medium. The rigid portion has an end surface facing the soft portion, the end surface including at least an outer peripheral portion in contact with the soft portion. The outer diameter of the soft portion is larger than the outer diameter of the rigid portion, and the outer diameter of the rigid portion is slightly smaller than the inner diameter of an outer cylinder of the syringe.

A microchip electrophoresis apparatus includes a microchip, a dispensing part, a suction part, and a control part. The control part is configured to perform a buffer solution filling step and a liquid surface aligning step. In the buffer solution filling step, a buffer solution is filled in a channel of the microchip, and also a liquid surface level of the buffer solution in a first reservoir and a liquid surface level of the buffer solution in a second reservoir provided on the other end of the channel are set to a predetermined level or more. The liquid surface aligning step is performed after the buffer solution filling step. In the liquid surface aligning step, tips of a first suction nozzle and a second suction nozzle are lowered from above the first reservoir and the second reservoir to the predetermined level while allowing the first suction nozzle and the second suction nozzle to perform suction operation, such that the buffer solution in the first reservoir and the second reservoir is sucked in order from a surface layer side, and aligning the liquid surface level of the first reservoir with the liquid surface level of the second reservoir.

A method for detecting and quantifying allergen components of a substance is described herein. A method can include obtaining an Ig sample derived from two or more individuals, and one or more capillaries comprising allergenic biologics adhered thereto. The Ig sample can be applied to the one or more capillaries and allergen component and molecules that has bound with the Ig sample, can be detected in the one or more capillaries. A molecular weight and/or frequency of appearance, an isoelectric charge and/or frequency of appearance, a molecular functional group and/or frequency of appearance or a combination thereof, of the allergen component can be recorded. Furthermore, methods for determining the minimum and maximum concentrations of the detected allergen components for pre-determined platforms, formulating an allergen product using the determined concentration ranges and applying the allergen product to result an effective assay are described.

Provided herein are mutant single-chain Mycobacterium smegmatis porin (Msp) and uses thereof.

A capillary electrophoresis system includes a capillary reservoir. The capillary reservoir includes a capillary tip flow chamber configured to receive respective capillary tips and to conduct fluid past the capillary tips, and an electrode flow chamber in which an electrode is disposed and configured to conduct fluid past the electrode, the electrode flow chamber being separate from and in fluid communication with the capillary tip flow chamber. An ultraviolet (UV) light absorbance-based multiplexed capillary electrophoresis system includes a first enclosure and a second enclosure. The first enclosure covers a UV light source, and includes a slit. The second enclosure covers the first enclosure, a collimating lens, and a capillary window.

Provided is an electrophoresis device that, by electrophoresis, feeds a sample into capillaries and optically detects the sample, the electrophoresis device being provided with capillaries, a capillary head provided at the distal end of the capillaries, a phoretic medium-filled container used for electrophoresis and filled with a phoretic medium, a guide member that covers the side surface of the phoretic medium-filled container, a seal member that seals from below the phoretic medium filled in the phoretic medium-filled container, and a plunger that presses the seal member.