Tu-BBS-11 - Gold-Mediated Functionalization of NEMS-FTIR Resonators for Selective Molecular Detection

Event

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

Band

Poster

Chapter

Biosensors/-electronics And Biomimetic Sensors

Author(s)

D. Suvara, K. Kanellopulos, H. Wursag, S. Prado-López, S. Schmid - TU Wien,Vienna (Austria)

Pages

380 - 381

DOI

10.5162/eurosensors2026/Tu-BBS-11

ISBN

978-3-910600-12-6

Price

free

Abstract

NEMS-FTIR has recently demonstrated picogram-level limits of detection for both airborne and aqueous samples, with chemical specificity provided by the analyte's mid-IR fingerprint. However, the analysis of complex samples remains limited by overlapping molecular signatures and labor-intensive sample preparation. To address this, a gold-mediated functionalization strategy is introduced to enable selective analyte capture directly on the NEMS surface, demonstrated by the immobilization of a CD₆₆e antibody and verified through the characteristic mid-IR fingerprint of the bound bioreceptor layer.