P24 - Characterization of Drop Cast as Strategy for the Biofunctionalization of Plasmonic Sensors Based on Highly Doped Ge-Based
- Event
- iCCC2024 - iCampµs Cottbus Conference
2024-05-14 - 2024-05-16
Cottbus - Band
- Poster
- Chapter
- Material- & Prozesstechnologien und Lab-on-Chip
- Author(s)
- E. Hardt, C. Alvarado Chavarin, O. Skibitzki - IHP - Leibniz Institut für innovative Mikroelektronik, Frankfurt/Oder , R. Varricchio, A. di Masi, G. Capellini - Università Roma Tre, Roma (Italy)
- Pages
- 191 - 194
- DOI
- 10.5162/iCCC2024/P24
- ISBN
- 978-3-910600-00-3
- Price
- free
Abstract
Conventional metal-based plasmonic biosensors in the Vis/IR range rely on flat or nanostructured metallic surfaces. CMOS-compatible novel biosensors operating in the THz range would benefit from their integration with mm-wave electronics to greatly reduce size, price and/or increase functionality. In this work, we investigate the adhesion of albumin to the surface of Ge plasmonic antennas operating in the THz spectral region. The sample surfaces were pre-treated with oxygen plasma or isopropanol as cleaning agents, before investigating their properties using various methods. We observed an increase of surface hydrophilicity after surface interaction with oxygen plasma, leading to improved attachment of albumin to the Si3N4 surface.