G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 33/561 (2006.01) C12Q 1/68 (2006.01) C12Q 1/70 (2006.01)
Patent
CA 2143999
A device for combined bioaffinity assay and electrophoretic separation is provided, which comprises a capillary system having two stages, a first stage (1) in which bioaffinity interactions of analyte molecules (L,M) and molecular recognition elements (A) are performed, and a second stage (2), in which electrophoretic separation of the analyte molecules (L,M) and subsequent detection of the separated species is accomplished. Within the first capillary stage (1) the molecular recognition elements (A) are attached and immobilized to the inside capillary wall (3), for example, by adsorption or by covalent binding to the capillary material. The method for combined bioaffinity assay and electrophoretic separation comprises flowing an analyte through a capillary system having two stages. In a first capillary stage (1) the analyte molecules (L,M) are captured by respective molecular recognition elements (A) present in that stage (1). More particularly the analyte molecules (L,M) are captured by molecular recognition elements (A) which are attached and immobilized to the inside wall (3) of that capillary stage (1), for example, by adsorption or by covalent binding to the capillary material. After a predetermined time the analyte-molecules (L,M) are dissociated from the molecular recognition elements (A). Subsequently the analyte-molecules (L,M) are separated in a second stage (2) of the capillary system by capillary electrophoresis and finally the separated species are detected at the terminal part of the capillary system.
Effenhauser Carlo S.
Ensing Kees
Oroszlan Peter
Paulus Aran
Ag Ciba-Geigy
Fetherstonhaugh & Co.
Zeptosens Ag
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