Tu-POS-09 - Nanowire Geometry Engineering for Enhanced Fluorescence Biosensing Performance

Event

EUROSENSORS 2026
2026-09-06 - 2026-09-09
Zurich

Band

Poster

Chapter

Photonics And Optical Sensors

Author(s)

F. A. Mou, N. Anttu - Åbo Akademi University,Turku (Finland)

Pages

539 - 540

DOI

10.5162/eurosensors2026/Tu-POS-09

ISBN

978-3-910600-12-6

Price

free

Abstract

We introduce a dual-function nanowire architecture consisting of a tapered tip integrated with a cylindrical base, enabling enhanced optical concentration while the cylindrical base preserves the imaging advantages of conventional nanowire biosensor. Our optics modelling shows that the proposed nanowire achieves >10⁰⁰× fluorescence enhancement over planar substrates and outperforms a full-length cylindrical nanowire. We propose also an alternative nanowire geometry that eliminates the need for selective functionalization while retaining performance comparable to the top-tapered configuration.