Comparison of Urea Determination in Biological Samples by EnFETs Based on pH and pNH4 Detection
In this paper urea biosensors based on detection of pH and ammonium ions are presented. As transducers pH-sensitive ion-selective field effect transistors (ISFETs) and chemically modified FETs (ChemFETs) snsitive to ammonium ions were used.Results concerning urea determination by the bisensors in bl...
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| Format: | Article |
| Language: | English |
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MDPI AG
2003-06-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/3/6/160/ |
| _version_ | 1811183887628369920 |
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| author | Wladyslaw Torbicz Marek Dawgul Dorota G. Bijanowska |
| author_facet | Wladyslaw Torbicz Marek Dawgul Dorota G. Bijanowska |
| author_sort | Wladyslaw Torbicz |
| collection | DOAJ |
| description | In this paper urea biosensors based on detection of pH and ammonium ions are presented. As transducers pH-sensitive ion-selective field effect transistors (ISFETs) and chemically modified FETs (ChemFETs) snsitive to ammonium ions were used.Results concerning urea determination by the bisensors in blood plasma and in dialysate show that the biosensors can be applied for urea monitoring in the effluent dialysate. However in the case of pNH4 based EnFETs a special pre-treatment (dilution with tris/HCl buffer) of the samples is necessary. |
| first_indexed | 2024-04-11T13:05:21Z |
| format | Article |
| id | doaj.art-cf21861bc84340bcad583a1f0576625d |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T13:05:21Z |
| publishDate | 2003-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-cf21861bc84340bcad583a1f0576625d2022-12-22T04:22:49ZengMDPI AGSensors1424-82202003-06-013616016510.3390/s30600160Comparison of Urea Determination in Biological Samples by EnFETs Based on pH and pNH4 DetectionWladyslaw TorbiczMarek DawgulDorota G. BijanowskaIn this paper urea biosensors based on detection of pH and ammonium ions are presented. As transducers pH-sensitive ion-selective field effect transistors (ISFETs) and chemically modified FETs (ChemFETs) snsitive to ammonium ions were used.Results concerning urea determination by the bisensors in blood plasma and in dialysate show that the biosensors can be applied for urea monitoring in the effluent dialysate. However in the case of pNH4 based EnFETs a special pre-treatment (dilution with tris/HCl buffer) of the samples is necessary.http://www.mdpi.com/1424-8220/3/6/160/Urea detectionbiosensorsEnFETenzyme immobilisation |
| spellingShingle | Wladyslaw Torbicz Marek Dawgul Dorota G. Bijanowska Comparison of Urea Determination in Biological Samples by EnFETs Based on pH and pNH4 Detection Sensors Urea detection biosensors EnFET enzyme immobilisation |
| title | Comparison of Urea Determination in Biological Samples by EnFETs Based on pH and pNH4 Detection |
| title_full | Comparison of Urea Determination in Biological Samples by EnFETs Based on pH and pNH4 Detection |
| title_fullStr | Comparison of Urea Determination in Biological Samples by EnFETs Based on pH and pNH4 Detection |
| title_full_unstemmed | Comparison of Urea Determination in Biological Samples by EnFETs Based on pH and pNH4 Detection |
| title_short | Comparison of Urea Determination in Biological Samples by EnFETs Based on pH and pNH4 Detection |
| title_sort | comparison of urea determination in biological samples by enfets based on ph and pnh4 detection |
| topic | Urea detection biosensors EnFET enzyme immobilisation |
| url | http://www.mdpi.com/1424-8220/3/6/160/ |
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