Description
Oral Presentation on our results:"Fluorescence-based biosensors are appealing tools for precise diagnosis applications, offering the high- sensitive detection of relevant biomolecules present at low concentrations, which can be potentially improved when combined with semiconductor nanowires, able to enhance the signal coming from surface-bound fluorophores. This so-called lightguiding effect requires of highly-controlled methods to produce nanowires with adequate dimensions for optimal fluorescence enhancement, as the standard metal-organic vapor phase epitaxy (MOVPE). Given the high costs and low-throughput of this batch-based method, it is not compatible for mass production. The proposed alternative is aerotaxy, a continuous and scalable production technology of high-quality nanowires for diagnostic applications in a cost-efficient way. Thus, we evaluated Ga(As)P aerotaxy and GaP epitaxy-grown standing nanowire platforms, showing a comparable signal improvement by one and two orders of magnitude, respectively, in contrast to planar glass slides of similar surface chemistry, as a proof of the potential of aerotaxy nanowires for unexpensive optical biosensing applications, with a prospect of a 10-fold improvement on the limit of detection (LOD) than conventional flat surfaces.
| Period | 2022 Apr 25 → 2022 Apr 29 |
|---|---|
| Event title | Nanowire Week 2022 |
| Event type | Conference |
| Location | Chamonix, FranceShow on map |
| Degree of Recognition | International |