Abstract:
An apparatus and methods are provided for the magnetic separation of target bioentities. The apparatus includes a fluid chamber and a magnetic clement for drawing target bioentities toward a collection surface of the fluid chamber. The apparatus may include a positioning assembly operable to variable change the position and orientation of the fluid chamber relative to the magnetic element.
Abstract:
This invention discloses a design a capillary column for use with electrochemically modulated liquid chromatography (EMLC). The capillary design, which results in a marked reduction in the flow of current through the column, enables the use of a two-electrode column construction that overcomes the mechanical and electrical shortfalls of the conventional standard bore design.
Abstract:
The invention relates to a system, comprising: a) a sample processing unit, comprising an input port and an output port coupled to a rotating container having at least one sample chamber, the sample processing unit configured provide a first processing step to a sample or to rotate the container so as to apply a centrifugal force to a sample deposited in the chamber and separate at least a first component and a second component of the deposited sample; and b) a sample separation unit coupled to the output port of the sample processing unit, the cell separation unit comprising separation column holder (42), a pump (64) and a plurality of valves (1-11) configured to at least partially control fluid flow through a fluid circuitry and a separation column (40) positioned in the holder, the separation column configured to separate labeled and unlabeled components of sample flowed through the column.
Abstract:
A novel system for the analysis of molecules and cells, comprising clusters where a non-magnetic particle is supplemented with magnetic particles to form a characteristic pattern, fingerprint or bar code. Methods and devices for formation of such particles are also disclosed.
Abstract:
Provided are devices that include a polymeric separation medium configured to immobilize one or more constituents of interest in the polymeric separation medium and have an increased pore size upon application of an applied stimulus. Systems including the devices, as well as methods of using the devices, are also provided. Embodiments of the present disclosure find use in a variety of different applications, including detecting whether an analyte is present in a fluid sample.
Abstract:
The invention discloses a separation matrix which comprises a plurality of separation ligands, defined by the formula R1-L1-N(R3)-L2-R, immobilized on a support, wherein R1 is a five- or six-membered, substituted or non-substituted ring structure or a hydroxyethyl or hydroxypropyl group; L1 is either a methylene group or a covalent bond; R2 is a five- or six-membered, substituted or non-substituted ring structure; L2 is either a methylene group or a covalent bond; R3 is a methyl group; and wherein if R1 is a hydroxyethyl group and L1 is a covalent bond, R2 is a substituted aromatic ring structure or a substituted or non-substituted aliphatic ring structure.
Abstract:
The disclosure relates to a method for the selective separation of proteins from liquid biological materials which, based on the total quantity, contain a small proportion of one or more trace components, by means of the addition of polar organic solvents having a dipole moment in the range from 1.6 to 4.0 Debye, and adsorption of the proteins on a solid phase carrier, wherein the trace components are separated from the proteins bound to the solid phase carrier by adsorption by means of a) magnetic field, b) centrifugal force, c) gravitational force or d) compressive force, and the trace components remain in the liquid.
Abstract:
An antibody purification method includes: bringing a solution that includes an antibody and has a pH of 3.0 or more and less than 5.6 into contact with a carrier that includes a 2,3-dihydroxypropyl group to adsorb the antibody on the carrier; and bringing the carrier that has been brought into contact with the solution, into contact with an eluent having a pH of 5.6 or more and less than 10 to elute the antibody from the carrier.
Abstract:
Materials and methods for use of constrained cohydration agents in the purification of biological materials such as antibodies, viruses, cells, and cellular organelles in connection with convective chromatography, fluidized bed or co-precipitation applications.
Abstract:
The invention relates to a centrifuge for separating a sample into at least two components, comprising a chamber for receiving a sample to be centrifuged. According to the invention, the centrifuge further comprises a means for controlling the progress of the sample separation is located at the chamber.