Ge Healthcare Bio-sciences Ab

Amersham Biosciences Ab

Ylva Laurin

Ronnie Palmgren

Jinyu Zou

Mattias Algotsson

Jimmy Hedin Dahlstrom

Miles W Burrows

Jimmy Hedin Dahlström

The invention discloses a cellulose or glass fiber paper for preservation of biological samples, which comprises 4-30 wt % of a hydrophilic branched carbohydrate polymer. It also discloses a method for preservation of biological samples by applying and drying them on the paper.

Sample preservation method and sample preservation substrate

The invention relates to a method and a system, suitable for automation, for the, preferably preparative, separation of amphoteric macromolecules, e.g. proteins or peptides, wherein said method comprises the steps of: (a) subjecting said mixture of macromolecules to isoelectric focusing in liquid media; (b) collecting samples from step (a), said samples containing macromolecules separated on basis of isoelectric point, and transferring each sample to a channel ( ) accommodating medium for electrophoresis, said channel ( ) being part of a composite body ( ); (c) subjecting said samples, contained in the channels ( ) in said composite body ( ), to electrophoresis; and (d) allowing electrophoresis to proceed until macromolecules are eluted from said medium for electrophoresis, and collecting fractions of the samples containing macromolecules.

Method for separation of macromolecules

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Uppsala, Sweden

Ylva Laurin