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Schulte, Albert. Pencil-lead disk electrodes with carbon nanotube-gelatin-glucose oxidase modification: Sustainable and economical glucose biosensors for common laboratory tasks. (). King Mongkut's University of Technology North Bangkok. Central Library. : , .
Pencil-lead disk electrodes with carbon nanotube-gelatin-glucose oxidase modification: Sustainable and economical glucose biosensors for common laboratory tasks
Name: Kamonwan Chatree
Organization :
Vidyasirimedhi Institute of Science and Technology. School of Biomolecular Science and Engineering
Name: Schulte, Albert
Organization :
Vidyasirimedhi Institute of Science and Technology. School of Biomolecular Science and Engineering
Email :
albert.s@vistec.ac.th
keyword:
Glucose oxidase
LCSH:
Biosensors
LCSH:
Glutaral
LCSH:
Electrodes
Abstract:
Glutaraldehyde (GA)-assisted immobilization of glucose oxidase (GOx) on gelatin films was recently
recommended for the assembly of high-quality amperometric glucose biosensors on platinum (Pt) disk and Pt
screen-printed electrodes (SPEs). Pencil leads are, on the other hand, readily available in stationery shops for
a small fraction of the cost of standard Pt disk and Pt SPE sensors. Here, we transformed cheap disk-shaped
pencil lead electrodes (PLEs) into responsive glucose biosensors, by easily completed surface coating with a
carbon nanotube (CNT)-gelatin-GOx layer. A CNT-gelatin suspension and then GOx solution were drop-
dried on polished PLEs and the CNT-gelatin-GOx deposits were crosslinked by a drop-and-dry treatment with
diluted GA. Completed GOx-gelatin/CNT-PL biosensors were calibrated by anodic H.O2 amperometry.
Response linearity up to 850 uM, a sensitivity of 10.6 nAuM'cm-2, a response time of about 10 s, a week-
long storage stability, a 15 uM practical limit of detection and a good recovery of glucose levels in model
samples are the functional assets of the proposed PLE-based biosensors. As GOx-gelatin/CNT-PL biosensors
are very cheap and easy to make and handle, they can be highly recommended for common laboratory use
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Modified:
2023-05-30
Issued:
2023-05-30
บทความ/Article
application/pdf
BibliograpyCitation :
In Mae Fah Luang University. School of Science. The Pure and Applied Chemistry International Conference 2023 (PACCON 2023) (pp.117-122). Chiang Rai : Mae Fah Luang University
eng
©copyrights King Mongkut's University of Technology North Bangkok
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Kamonwan Chatree
| Title | Contributor | Type |
|---|---|---|
| Pencil-lead disk electrodes with carbon nanotube-gelatin-glucose oxidase modification: Sustainable and economical glucose biosensors for common laboratory tasks
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Kamonwan Chatree;Schulte, Albert | บทความ/Article |
Schulte, Albert
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|---|---|---|
| Reversible heavy metal inhibition of oxidases on sensor surfaces: toward trace nickel analysis by H2O2 amperometry
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| Toward personal home health-care kidney biomarker urinalysis
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| Use of an Ag/AgCl electrode couple as a conductometric probe of glucose oxidase activity
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| Pencil-lead disk electrodes with carbon nanotube-gelatin-glucose oxidase modification: Sustainable and economical glucose biosensors for common laboratory tasks
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Kamonwan Chatree;Schulte, Albert | บทความ/Article | |
| 4-nitrophenol electroanalysis with carbon nanotube-modified pencil lead electrodes
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| Sensitive amperometric xylose detection with pyranose-2-oxidase-modified platinum electrodes
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| Pulsed amperometric detection of payload release from polymer nanoparticles
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