摘要:
The present invention provides a processing station for automatically processing a biological sample, a system for automated real-time inventory control of consumables within a biological sample handling or assay instrument, a high throughput random access automated instrument for processing biological samples, an automated instrument for processing or analysis of a sample, and processes for automated mucoid detection and elimination. Methods of using the disclosed instruments, mucoid detection processes, and systems to process and/or analyze samples are also disclosed.
摘要:
Optical measuring apparatus configured for analysis of samples contained in liquid drops provided by a liquid handling system that comprises at least one liquid handling tip. The apparatus comprises a light source for irradiating the drop; a detector for measuring sample light; an optics system with first optical elements for transmitting irradiation light, and a processor for accepting and processing measurement signals. The drop is suspended at the liquid handling orifice of the tip in a position where the drop is penetrated by a first optical axis defined by the light source and the first optical elements. The drop is physically touched only by the tip and the liquid sample inside the tip. A robot arm to which the tip is attached is configured as a mechanism for adapting the position of the liquid drop with respect to at least one optical element of the optics system.
摘要:
The present invention relates to bead incubating and washing on a droplet actuator. Methods for incubating magnetically responsive beads that are labeled with primary antibody, a sample (i.e., analyte), and secondary reporter antibodies on a magnet, on and off a magnet, and completely off a magnet are provided. Also provided are methods for washing magnetically responsive beads using shape-assisted merging of droplets. Also provided are methods for shape-mediated splitting, transporting, and dispensing of a sample droplet that contains magnetically responsive beads. The apparatuses and methods of the invention provide for rapid time to result and optimum detection of an analyte in an immunoassay.
摘要:
An optical measuring apparatus and method for analysis of samples contained in liquid drops provided by a liquid handling system has a liquid handling tip. A light source irradiates the liquid drop; a detector measures sample light; and an optics system with first optical elements transmits irradiation light, and a processor processes the measurement signals. The liquid drop is suspended at the liquid handling orifice of the liquid handling tip in a position where the liquid drop is penetrated by a first optical axis defined by the light source and the first optical elements. The liquid drop is physically touched only by the liquid handling tip and the liquid sample inside the liquid handling tip. A mutual adaption of the size and position of the liquid drop with respect to the first optical elements is achieved.
摘要:
The present disclosure relates general to devices, systems, and methods of using such devices in creating and handling hanging drops of fluid. The present disclosure also relates to cell culture devices, methods and/or systems of using such devices as well as the use of cell culture devices, for example, for research and high throughput screening.
摘要:
Apparatuses and methods in which detection is integrated with various liquid processing and environmental control functions to create integrated bioanalysis systems are disclosed. Though the various integrated bioanalysis systems are useful for any number of analysis formats, they are adaptable to high-throughput processing of samples.
摘要:
A droplet actuation system is provided including a droplet actuation device including a substrate that includes electrodes for conducting droplet operations; temperature control means for heating and/or cooling a region of the droplet actuation device and arranged such that a droplet can be transported on the electrodes to a region for heating; and a means for effecting a magnetic field in proximity to one or more of the electrodes sufficient to immobilize magnetically responsive beads in a droplet on the substrate during droplet operations. The system further includes a processor for controlling the electrodes and temperature control means, wherein the processor is programmed, and electrodes and magnetic field are arranged, to cause the electrodes to split a droplet including the magnetically responsive beads yielding a first daughter droplet which includes the magnetically responsive beads and a second daughter droplet without a substantial amount of the magnetically responsive beads.
摘要:
A technique for shaping droplets is disclosed. Multiple optical traps, or at least one variable geometry trap, are used to deform a droplet. The surface tension of the droplet is lowered to be comparable with the force which can be applied using the optical traps, for example by using a surfactant such as Aerosol OT, with heptane droplets in a solution of sodium chloride. Solidification of deformed droplets can be achieved using polymerization.
摘要:
The invention provides a method of circulating magnetically responsive beads within a droplet in a droplet actuator. The invention also provides methods for splitting droplets. The invention, in one embodiment, makes use of a droplet actuator with top and bottom substrates, a plurality of magnetic fields respectively present proximate the top and bottom substrates, wherein at least one of the magnet fields is selectively alterable, and a plurality of droplet operations electrodes positioned along at least one of the top and bottom surfaces. A droplet is positioned between the top and bottom surfaces and at least one of the magnetic fields is selectively altered.
摘要:
An optical image-driven light induced dielectrophoresis (DEP) apparatus and method are described which provide for the manipulation of particles or cells with a diameter on the order of 100 μm or less. The apparatus is referred to as optoelectric tweezers (OET) and provides a number of advantages over conventional optical tweezers, in particular the ability to perform operations in parallel and over a large area without damage to living cells. The OET device generally comprises a planar liquid-filled structure having one or more portions which are photoconductive to convert incoming light to a change in the electric field pattern. The light patterns are dynamically generated to provide a number of manipulation structures that can manipulate single particles and cells or groups of particles/cells. The OET preferably includes a microscopic imaging means to provide feedback for the optical manipulation, such as detecting position and characteristics wherein the light patterns are modulated accordingly.