Abstract:
A microfluidic device for glycopeptide analysis includes an enrichment column capable of binding carbohydrates; a trapping column capable of binding peptides, wherein the trapping column is configured to be connected downstream of the enrichment column; a separation column, wherein the separation column is configured to be connected downstream of the trapping column; and a plurality of ports configured to work with a switching device to form a plurality of flow paths, wherein one of the plurality of flow paths allows the trapping column to be in fluid communication with the separation column. A method for glycopeptide analysis using a microfluidic device comprising a trapping column and a separation column, the method includes applying a sample of peptides to the microfluidic device; trapping the peptides on the trapping column; eluting the peptides from the trapping column into the separation column; and separating the peptides on the separation column.
Abstract:
A microfluidic device for glycan analysis includes a deglycosylation column comprising a glycosidase attached to a solid support; a tagging column comprising a reactive ester for reaction with an amino group, wherein the tagging column is arranged downstream of the deglycosylation column; an analytical column comprising a stationary phase capable of separating a derivatized glycan; and a plurality of inlet/outlet ports configured to connect with channels on a switching element to form flow paths.
Abstract:
A microfluidic device for glycan analysis includes a deglycosylation column comprising a glycosidase attached to a solid support; a tagging column comprising a reactive ester for reaction with an amino group, wherein the tagging column is arranged downstream of the deglycosylation column; an analytical column comprising a stationary phase capable of separating a derivatized glycan; and a plurality of inlet/outlet ports configured to connect with channels on a switching element to form flow paths.