Use of polyamines as resolving agents for capillary electrophoresis of labeled glycans using gels
Granted: May 21, 2024
Patent Number:
11988633
The present disclosure provides methods of improving the resolution of labeled glycans in capillary electrophoresis techniques using a gel as a sieving matrix, by incorporating polyamines in the gel.
Deparaffinization of tissue by electric field generation and ionization
Granted: May 14, 2024
Patent Number:
11982606
Paraffin-embedded tissue, which may be disposed on a solid substrate, is prepared by a dry technique that removes paraffin from tissue without adding any liquid to the tissue, thereby rendering the tissue substantially free of paraffin. The dry technique may entail applying heat energy to the tissue effective to melt the paraffin and thereby render it flowable, and applying an electric field. The electric field is effective to impart electrical charge to the paraffin and to move the…
3D cell washer
Granted: May 14, 2024
Patent Number:
11982268
An autoclaving microplate washing system for cells and non-adhering three-dimensional (3D) cell cultures is provided. The autoclaving microplate washing system may include a dispensing pump; an aspirating peristaltic pump; and a processor configured to execute a cleaning control program, which when executed causes the autoclaving microplate washing system to independently control: the dispensing pump to control a first flow rate of a solution from a fluid reservoir through a plurality of…
Etched non-porous particles and method of producing thereof
Granted: April 23, 2024
Patent Number:
11964874
There is disclosed a method of producing etched non-porous particles. The method includes, in some examples, coating a non-porous particle with a hydrophilic polymer and treating the coated particle with acid or base. Also provided is etched non-porous particles capable of separating a variety of analytes, including biomolecules.
Multi-device removal and installation tool
Granted: April 9, 2024
Patent Number:
11955326
In some examples, a multi-device removal and installation tool may include a device removal tool including catch members engageable with an engagement face of a device to attach, upon engagement of the catch members with the engagement face, the device removal tool to the device. The catch members may engage the engagement face with a removal force that is sufficient to remove, upon engagement of the catch members with the engagement face, the device from an instrument. The multi-device…
Operation of an injector of a sample separation device
Granted: April 2, 2024
Patent Number:
11946913
An injector is configured for injecting a fluidic sample from an injector path into a mobile phase in a separation path between a fluid drive and a sample separation unit of a sample separation device. The injector includes a control unit configured for generating a first overpressure in a blocked first partial path of the injector path by a first pressure source, for generating a second overpressure in a blocked second partial path of the injector path by a second pressure source, for…
Booster plate
Granted: April 2, 2024
Patent Number:
D1021136
Method and system for determining integrated metabolic baseline and potential of living cells
Granted: March 26, 2024
Patent Number:
11940442
The current technology is related to methods for rapidly determining the metabolic baseline and potential of living cells. Embodiments relate to measuring the activity of each of the two major energy-generating pathways within the cell: mitochondrial respiration and glycolysis, first under baseline conditions, and again after applying a stress to the cells to demand increased energy supply. In some embodiments the stress may be applied by exposing the cells to a combination of two…
Preparation of tissue sections using fluorescence-based detection
Granted: March 26, 2024
Patent Number:
11940359
The present disclosure is directed to an improved method for distinguishing tissue from an embedding medium, such as paraffin in a formalin-fixed paraffin-embedded sample. The method involves the use of fluorescence of naturally-occurring species in tissue to determine the location of the tissue in the embedded sample. An embedded sample is generally excited by light of a selected wavelength, and the fluorescence emission at an emitted wavelength is used to locate the boundary or…
Dual feedback loop for precision high voltage power supply
Granted: March 19, 2024
Patent Number:
11936301
A high-voltage (HV) power supply outputs an output voltage based on a control signal produced by a dual analog/digital feedback loop. The control signal is determined at least in part by an error amplifier that receives a measurement signal, proportionally attenuated from the output voltage, and a digital-to-analog converter (DAC) output signal. An analog-to-digital converter (ADC) also receives the measurement signal and transmits it in digitized form to a digital processor. The digital…
Coupled-amplifier multi-frequency circuit topologies applicable to mass spectrometer radio-frequency drive systems
Granted: March 19, 2024
Patent Number:
11935735
A circuit and method for providing high-voltage radio-frequency (RF) energy to an instrument at multiple frequencies includes a plurality of inputs each configured to receive an RF voltage signal oscillating at a corresponding frequency, and a step-up circuit for generating magnified RF voltage signals based on the received RF voltage signals. The step-up circuit includes an LC network operable to isolate the RF voltage signals at the plurality inputs from one another while preserving a…
Multidimensional sample separation with pressure adjustment
Granted: March 19, 2024
Patent Number:
11933769
A multidimensional sample separation apparatus includes a first separation dimension for separating a fluidic sample, a second separation dimension for further separating the fluidic sample, a switching mechanism, and a control unit. The first separation dimension includes a first fluid drive unit and a first sample separation unit. The second separation dimension includes a second fluid drive unit for driving the separated fluidic sample, and second and third sample separation units…
Manufacture of a microfluidic component by additive manufacturing
Granted: March 19, 2024
Patent Number:
11931918
A microfluidic component for a sample separation apparatus includes a component body including ceramic and at least one microfluidic structure in the component body. The component body is manufactured by additive manufacturing, in particular by three-dimensional printing.
Restriction mediated quantitative polymerase chain reactions
Granted: March 12, 2024
Patent Number:
11926870
The present invention relates to the technical field of nucleic acid amplification using a Polymerase Chain Reaction (PCR). Specifically, the present invention relates to Polymerase Chain Reaction (PCR) primers and Polymerase Chain Reaction (PCR) nucleic acid amplification mixture and the use thereof in (quantitative) Polymerase Chain Reactions (PCR). Specifically, the present invention relates to Polymerase Chain Reaction (PCR) primers suitable for use in Restriction Mediated…
Mounting a sample separation unit by a swivel mechanism
Granted: March 5, 2024
Patent Number:
11921093
A mounting device for mounting a sample separation unit configured for separating, preferably chromatographically separating, compounds in a fluidic sample includes a first fluid connector configured for being mechanically and fluidically coupled with a first fluid interface of the sample separation unit, a second fluid connector configured for being mechanically and fluidically coupled with a second fluid interface of the sample separation unit, and a swivel mechanism configured for…
Label-free monitoring of excitation-contraction coupling and excitable cells using impedance based systems with millisecond time resolution
Granted: February 20, 2024
Patent Number:
11906508
A system for monitoring cells, which includes a device for monitoring cell-substrate impedance, the device having a plurality of wells on a nonconductive substrate, where each of the plurality of wells has an electrode array fabricated on the substrate for measurement of cell-substrate impedance; an impedance analyzer that measures cell-substrate impedance from the plurality of wells; electronic circuitry with multiple analogue-to-digital conversion channels, where the electronic…
Column depth measuring guide
Granted: February 6, 2024
Patent Number:
D1013542
Column depth measuring guide
Granted: January 30, 2024
Patent Number:
D1012743
Optical coupling and a modular optical device comprising the same
Granted: January 30, 2024
Patent Number:
11885676
The invention provides an optical coupling, comprising: a first coupling portion and a second coupling portion, the first and second coupling portions configured to mate in kinematic constraint via a first mounting interface and at least two further mounting interfaces, wherein: the first coupling portion comprises a first mounting element and the second coupling portion comprises a socket, and the first mounting element is receivable in the socket at the first mounting interface such…
Guide RNAs with chemical modification for prime editing
Granted: January 30, 2024
Patent Number:
11884915
Provided herein are compositions and methods for inducing CRISPR/Cas-based editing of a target nucleic acid (e.g., target DNA or target RNA) in vitro or in a cell, using modified prime editing guide RNAs (pegRNAs) that incorporate one or more chemically-modified nucleotides. The modified pegRNAs disclosed herein may be used to induce Cas-mediated incorporation of one or more nucleotide changes and/or targeted mutagenesis of a target nucleic acid. The nucleotide change can include, e.g.,…
