Evaluation of Mesoporous TiO<sub>2</sub> Layers as Glucose Optical Sensors
Porous materials are currently the basis of many optical sensors because of their ability to provide a higher interaction between the light and the analyte, directly within the optical structure. In this study, mesoporous TiO<sub>2</sub> layers were fabricated using a bottom-up synthesis...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/14/5398 |
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| author | David Ortiz de Zárate Sara Serna Salvador Ponce-Alcántara Jaime García-Rupérez |
| author_facet | David Ortiz de Zárate Sara Serna Salvador Ponce-Alcántara Jaime García-Rupérez |
| author_sort | David Ortiz de Zárate |
| collection | DOAJ |
| description | Porous materials are currently the basis of many optical sensors because of their ability to provide a higher interaction between the light and the analyte, directly within the optical structure. In this study, mesoporous TiO<sub>2</sub> layers were fabricated using a bottom-up synthesis approach in order to develop optical sensing structures. In comparison with more typical top-down fabrication strategies where the bulk constitutive material is etched in order to obtain the required porous medium, the use of a bottom-up fabrication approach potentially allows increasing the interconnectivity of the pore network, hence improving the surface and depth homogeneity of the fabricated layer and reducing production costs by synthesizing the layers on a larger scale. The sensing performance of the fabricated mesoporous TiO<sub>2</sub> layers was assessed by means of the measurement of several glucose dilutions in water, estimating a limit of detection even below 0.15 mg/mL (15 mg/dL). All of these advantages make this platform a very promising candidate for the development of low-cost and high-performance optical sensors. |
| first_indexed | 2024-03-09T05:56:18Z |
| format | Article |
| id | doaj.art-7967ecf497a444bbb5d838d3fcb9a484 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T05:56:18Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-7967ecf497a444bbb5d838d3fcb9a4842023-12-03T12:13:36ZengMDPI AGSensors1424-82202022-07-012214539810.3390/s22145398Evaluation of Mesoporous TiO<sub>2</sub> Layers as Glucose Optical SensorsDavid Ortiz de Zárate0Sara Serna1Salvador Ponce-Alcántara2Jaime García-Rupérez3Nanophotonics Technology Center, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, SpainNanophotonics Technology Center, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, SpainNanophotonics Technology Center, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, SpainNanophotonics Technology Center, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, SpainPorous materials are currently the basis of many optical sensors because of their ability to provide a higher interaction between the light and the analyte, directly within the optical structure. In this study, mesoporous TiO<sub>2</sub> layers were fabricated using a bottom-up synthesis approach in order to develop optical sensing structures. In comparison with more typical top-down fabrication strategies where the bulk constitutive material is etched in order to obtain the required porous medium, the use of a bottom-up fabrication approach potentially allows increasing the interconnectivity of the pore network, hence improving the surface and depth homogeneity of the fabricated layer and reducing production costs by synthesizing the layers on a larger scale. The sensing performance of the fabricated mesoporous TiO<sub>2</sub> layers was assessed by means of the measurement of several glucose dilutions in water, estimating a limit of detection even below 0.15 mg/mL (15 mg/dL). All of these advantages make this platform a very promising candidate for the development of low-cost and high-performance optical sensors.https://www.mdpi.com/1424-8220/22/14/5398optical sensormesoporous layerbottom-up fabricationglucose sensingsol-gelTiO<sub>2</sub> |
| spellingShingle | David Ortiz de Zárate Sara Serna Salvador Ponce-Alcántara Jaime García-Rupérez Evaluation of Mesoporous TiO<sub>2</sub> Layers as Glucose Optical Sensors Sensors optical sensor mesoporous layer bottom-up fabrication glucose sensing sol-gel TiO<sub>2</sub> |
| title | Evaluation of Mesoporous TiO<sub>2</sub> Layers as Glucose Optical Sensors |
| title_full | Evaluation of Mesoporous TiO<sub>2</sub> Layers as Glucose Optical Sensors |
| title_fullStr | Evaluation of Mesoporous TiO<sub>2</sub> Layers as Glucose Optical Sensors |
| title_full_unstemmed | Evaluation of Mesoporous TiO<sub>2</sub> Layers as Glucose Optical Sensors |
| title_short | Evaluation of Mesoporous TiO<sub>2</sub> Layers as Glucose Optical Sensors |
| title_sort | evaluation of mesoporous tio sub 2 sub layers as glucose optical sensors |
| topic | optical sensor mesoporous layer bottom-up fabrication glucose sensing sol-gel TiO<sub>2</sub> |
| url | https://www.mdpi.com/1424-8220/22/14/5398 |
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