Label‐Free Photonic Biosensors: Key Technologies for Precision Diagnostics

With the rise of multidrug‐resistant pathogens, emerging zoonotic viruses, and the increasing prevalence of cancer, the modernization of clinical diagnostics has become a critical priority. Label‐free optical biosensors, including those based on plasmonics and silicon photonic technologies, offer pr...

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Main Authors: Maria Soler, Laura M. Lechuga
Format: Article
Language:English
Published: Wiley-VCH 2025-07-01
Series:ChemistryEurope
Subjects:
Online Access:https://doi.org/10.1002/ceur.202400106
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author Maria Soler
Laura M. Lechuga
author_facet Maria Soler
Laura M. Lechuga
author_sort Maria Soler
collection DOAJ
description With the rise of multidrug‐resistant pathogens, emerging zoonotic viruses, and the increasing prevalence of cancer, the modernization of clinical diagnostics has become a critical priority. Label‐free optical biosensors, including those based on plasmonics and silicon photonic technologies, offer promising solutions for highly sensitive molecular analysis, rapid assay times, and decentralized operation. However, important challenges must be addressed for their successful clinical implementation, including the miniaturization and integration in compact, automated devices and the direct analysis of complex human specimens, like blood. In this context, an overview of recent advancements and future perspectives in photonic biosensors are provided for clinical diagnostics. The critical limitations of these technologies are examined, and specific research objectives that need to be met to fully leverage the potential of photonic biosensors and accelerate their adoption in the clinical practice are proposed. Finally, the most innovative biosensor designs and methodologies are highlighted, along with their prospects for contributing to precision diagnosis and personalized medicine.
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spelling doaj-art-7659475b07ef4d1cb3a6980a6b0a8c072025-08-20T03:50:53ZengWiley-VCHChemistryEurope2751-47652025-07-0134n/an/a10.1002/ceur.202400106Label‐Free Photonic Biosensors: Key Technologies for Precision DiagnosticsMaria Soler0Laura M. Lechuga1Nanobiosensors and Bioanalytical Applications Group (NanoB2A) Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, BIST and CIBER‐BBN Bellaterra 08193 Barcelona SpainNanobiosensors and Bioanalytical Applications Group (NanoB2A) Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, BIST and CIBER‐BBN Bellaterra 08193 Barcelona SpainWith the rise of multidrug‐resistant pathogens, emerging zoonotic viruses, and the increasing prevalence of cancer, the modernization of clinical diagnostics has become a critical priority. Label‐free optical biosensors, including those based on plasmonics and silicon photonic technologies, offer promising solutions for highly sensitive molecular analysis, rapid assay times, and decentralized operation. However, important challenges must be addressed for their successful clinical implementation, including the miniaturization and integration in compact, automated devices and the direct analysis of complex human specimens, like blood. In this context, an overview of recent advancements and future perspectives in photonic biosensors are provided for clinical diagnostics. The critical limitations of these technologies are examined, and specific research objectives that need to be met to fully leverage the potential of photonic biosensors and accelerate their adoption in the clinical practice are proposed. Finally, the most innovative biosensor designs and methodologies are highlighted, along with their prospects for contributing to precision diagnosis and personalized medicine.https://doi.org/10.1002/ceur.202400106label‐free analysisoptical biosensorplasmonicspoint‐of‐care diagnosticssilicon photonics
spellingShingle Maria Soler
Laura M. Lechuga
Label‐Free Photonic Biosensors: Key Technologies for Precision Diagnostics
ChemistryEurope
label‐free analysis
optical biosensor
plasmonics
point‐of‐care diagnostics
silicon photonics
title Label‐Free Photonic Biosensors: Key Technologies for Precision Diagnostics
title_full Label‐Free Photonic Biosensors: Key Technologies for Precision Diagnostics
title_fullStr Label‐Free Photonic Biosensors: Key Technologies for Precision Diagnostics
title_full_unstemmed Label‐Free Photonic Biosensors: Key Technologies for Precision Diagnostics
title_short Label‐Free Photonic Biosensors: Key Technologies for Precision Diagnostics
title_sort label free photonic biosensors key technologies for precision diagnostics
topic label‐free analysis
optical biosensor
plasmonics
point‐of‐care diagnostics
silicon photonics
url https://doi.org/10.1002/ceur.202400106
work_keys_str_mv AT mariasoler labelfreephotonicbiosensorskeytechnologiesforprecisiondiagnostics
AT lauramlechuga labelfreephotonicbiosensorskeytechnologiesforprecisiondiagnostics