A selective and sensitive d-xylose electrochemical biosensor based on xylose dehydrogenase displayed on the surface of bacteria and multi-walled carbon nanotubes modified electrode

► Novel xylose dehydrogenase (XDH) cell-surface displaying system. ► Electrochemical D-xylose biosensor combination of XDH-bacteria/carbon-nanotube. ► Wide linear range (0.6-100 μM) d-xylose. ► Low detection limit of 0.5 μM of d-xylose. ► High specificity. ► Capable of real sample measurement.