Tablet-Based Sensor: A Stable and User-Friendly Tool for Point-of-Care Detection of Glucose in Urine
The colorimetric detection of glucose in urine through enzymatic reactions offers a low-cost and non-invasive method to aid in diabetes management. Nonetheless, the vulnerability of enzymes to environmental conditions, particularly elevated temperatures, and their activity loss pose significant chal...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-09-01
|
| Series: | Biosensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-6374/13/9/893 |
| _version_ | 1797581061012586496 |
|---|---|
| author | Hasti Hajimiri Seyed Hamid Safiabadi Tali Muna Al-Kassawneh Zubi Sadiq Sana Jahanshahi-Anbuhi |
| author_facet | Hasti Hajimiri Seyed Hamid Safiabadi Tali Muna Al-Kassawneh Zubi Sadiq Sana Jahanshahi-Anbuhi |
| author_sort | Hasti Hajimiri |
| collection | DOAJ |
| description | The colorimetric detection of glucose in urine through enzymatic reactions offers a low-cost and non-invasive method to aid in diabetes management. Nonetheless, the vulnerability of enzymes to environmental conditions, particularly elevated temperatures, and their activity loss pose significant challenges for transportation and storage. In this work, we developed a stable and portable tablet sensor as a user-friendly platform for glucose monitoring. This innovative device encapsulates glucose oxidase and horseradish peroxidase enzymes with dextran, transforming them into solid tablets and ensuring enhanced stability and practicality. The enzymatic tablet-based sensor detected glucose in urine samples within 5 min, using 3,3′,5,5′-tetramethylbenzidine (TMB) as the indicator. The tablet sensor exhibited responsive performance within the clinically relevant range of 0–6 mM glucose, with a limit of detection of 0.013 mM. Furthermore, the tablets detected glucose in spiked real human urine samples, without pre-processing, with high precision. Additionally, with regard to thermal stability, the enzyme tablets better maintained their activity at an elevated temperature as high as 60 °C compared to the solution-phase enzymes, demonstrating the enhanced stability of the enzymes under harsh conditions. The availability of these stable and portable tablet sensors will greatly ease the transportation and application of glucose sensors, enhancing the accessibility of glucose monitoring, particularly in resource-limited settings. |
| first_indexed | 2024-03-10T22:59:50Z |
| format | Article |
| id | doaj.art-e7cfca93edc24635875366e8cb2d73d6 |
| institution | Directory Open Access Journal |
| issn | 2079-6374 |
| language | English |
| last_indexed | 2024-03-10T22:59:50Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Biosensors |
| spelling | doaj.art-e7cfca93edc24635875366e8cb2d73d62023-11-19T09:47:46ZengMDPI AGBiosensors2079-63742023-09-0113989310.3390/bios13090893Tablet-Based Sensor: A Stable and User-Friendly Tool for Point-of-Care Detection of Glucose in UrineHasti Hajimiri0Seyed Hamid Safiabadi Tali1Muna Al-Kassawneh2Zubi Sadiq3Sana Jahanshahi-Anbuhi4Department of Chemical and Materials Engineering, Gina Cody School of Engineering, Concordia University, Montreal, QC H3G 2W1, CanadaDepartment of Chemical and Materials Engineering, Gina Cody School of Engineering, Concordia University, Montreal, QC H3G 2W1, CanadaDepartment of Chemical and Materials Engineering, Gina Cody School of Engineering, Concordia University, Montreal, QC H3G 2W1, CanadaDepartment of Chemical and Materials Engineering, Gina Cody School of Engineering, Concordia University, Montreal, QC H3G 2W1, CanadaDepartment of Chemical and Materials Engineering, Gina Cody School of Engineering, Concordia University, Montreal, QC H3G 2W1, CanadaThe colorimetric detection of glucose in urine through enzymatic reactions offers a low-cost and non-invasive method to aid in diabetes management. Nonetheless, the vulnerability of enzymes to environmental conditions, particularly elevated temperatures, and their activity loss pose significant challenges for transportation and storage. In this work, we developed a stable and portable tablet sensor as a user-friendly platform for glucose monitoring. This innovative device encapsulates glucose oxidase and horseradish peroxidase enzymes with dextran, transforming them into solid tablets and ensuring enhanced stability and practicality. The enzymatic tablet-based sensor detected glucose in urine samples within 5 min, using 3,3′,5,5′-tetramethylbenzidine (TMB) as the indicator. The tablet sensor exhibited responsive performance within the clinically relevant range of 0–6 mM glucose, with a limit of detection of 0.013 mM. Furthermore, the tablets detected glucose in spiked real human urine samples, without pre-processing, with high precision. Additionally, with regard to thermal stability, the enzyme tablets better maintained their activity at an elevated temperature as high as 60 °C compared to the solution-phase enzymes, demonstrating the enhanced stability of the enzymes under harsh conditions. The availability of these stable and portable tablet sensors will greatly ease the transportation and application of glucose sensors, enhancing the accessibility of glucose monitoring, particularly in resource-limited settings.https://www.mdpi.com/2079-6374/13/9/893enzyme stabilitytabletbiosensorencapsulationglucoseurine |
| spellingShingle | Hasti Hajimiri Seyed Hamid Safiabadi Tali Muna Al-Kassawneh Zubi Sadiq Sana Jahanshahi-Anbuhi Tablet-Based Sensor: A Stable and User-Friendly Tool for Point-of-Care Detection of Glucose in Urine Biosensors enzyme stability tablet biosensor encapsulation glucose urine |
| title | Tablet-Based Sensor: A Stable and User-Friendly Tool for Point-of-Care Detection of Glucose in Urine |
| title_full | Tablet-Based Sensor: A Stable and User-Friendly Tool for Point-of-Care Detection of Glucose in Urine |
| title_fullStr | Tablet-Based Sensor: A Stable and User-Friendly Tool for Point-of-Care Detection of Glucose in Urine |
| title_full_unstemmed | Tablet-Based Sensor: A Stable and User-Friendly Tool for Point-of-Care Detection of Glucose in Urine |
| title_short | Tablet-Based Sensor: A Stable and User-Friendly Tool for Point-of-Care Detection of Glucose in Urine |
| title_sort | tablet based sensor a stable and user friendly tool for point of care detection of glucose in urine |
| topic | enzyme stability tablet biosensor encapsulation glucose urine |
| url | https://www.mdpi.com/2079-6374/13/9/893 |
| work_keys_str_mv | AT hastihajimiri tabletbasedsensorastableanduserfriendlytoolforpointofcaredetectionofglucoseinurine AT seyedhamidsafiabaditali tabletbasedsensorastableanduserfriendlytoolforpointofcaredetectionofglucoseinurine AT munaalkassawneh tabletbasedsensorastableanduserfriendlytoolforpointofcaredetectionofglucoseinurine AT zubisadiq tabletbasedsensorastableanduserfriendlytoolforpointofcaredetectionofglucoseinurine AT sanajahanshahianbuhi tabletbasedsensorastableanduserfriendlytoolforpointofcaredetectionofglucoseinurine |