ArticleNanomaterials (Basel, Switzerland)2025
Combining QCM and SERS on a Nanophotonic Chip: A Dual-Functional Sensor for Biomolecular Interaction Analysis and Protein Fingerprinting.
Article in Nanomaterials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Electron-Donating Benzenethiols Direct Rapid Formation of Plasmonic Gold Nanoflowers.Small (Weinheim an der Bergstrasse, Germany) · 2026Article
- Molecular states and interfacial interactions at solid-liquid interfaces: advances and challenges in multimodal characterization.Beilstein journal of nanotechnology · 2026Review
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
We present a dual biosensing strategy integrating Quartz Crystal Microbalance (QCM) and Surface-Enhanced Raman Spectroscopy (SERS) for the quantitative and molecular-specific detection of FKBP12. Silver nanodendritic arrays were electrodeposited onto QCM sensors, optimized for SERS enhancement using Rhodamine 6G, and functionalized with a custom-designed receptor to selectively capture FKBP12. QCM measurements revealed a two-step Langmuir adsorption behavior, enabling sensitive mass quantification with a low limit of detection. Concurrently, in situ SERS analysis on the same sensor provided vibrational fingerprints of FKBP12, resolved through comparative studies of the free protein, surface-bound receptor, and surface-bound receptor-protein complex. Ethanol-induced denaturation confirmed protein-specific peaks, while shifts in receptor vibrational modes-linked to FKBP12 binding-demonstrated dynamic molecular interactions. A ratiometric parameter, derived from key peak intensities, served as a robust, concentration-dependent signature of complex formation. This platform bridges quantitative (QCM) and structural (SERS) biosensing, offering real-time mass tracking and conformational insights. The nanodendritic substrate's dual functionality, combined with the receptor's selectivity, advances label-free protein detection for applications in drug diagnostics, with potential adaptability to other target analytes.
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Registered trials
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