Piezoresistive cantilever array sensor for consolidated bioprocess monitoring.
Cellulolytic microbes occur in diverse natural niches and are being screened for industrial modification and utility. A microbe for consolidated bioprocessing (CBP) development can rapidly degrade pure cellulose and then ferment the resulting sugars into fuels. To identify and screen for novel microbes for CBP, we have developed a piezoresistive cantilever array sensor which is capable of simultaneous monitoring of glucose and ethanol concentration changes in a phosphate buffer solution. 4-mercaptophenylboronic acid and polyethyleneglycol-thiol are employed to functionalize each piezoresistive cantilever for glucose and ethanol sensing, respectively. Successful concentration measurements of glucose and ethanol with minimal interferences are obtained with our cantilever array sensor.
Kim
Seonghwan
S
Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
Rahman
Touhidur
T
Senesac
Larry R
LR
Davison
Brian H
BH
Thundat
Thomas
T
D001897:Boronic Acids / Q000378:metabolism; D002623:Chemistry Techniques, Analytical; D003470:Culture Media / Q000737:chemistry*; D000431:Ethanol / Q000032:analysis*; D005285:Fermentation; D005947:Glucose / Q000032:analysis*; D046228:Microarray Analysis; D013438:Sulfhydryl Compounds / Q000378:metabolism
C510906:4-mercaptophenylboronic acid; D001897:Boronic Acids; D003470:Culture Media; D013438:Sulfhydryl Compounds; D000431:Ethanol; D005947:Glucose