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Bolognesi M, Prosa M, Toerker M, Lopez Sanchez L, Wieczorek M, Giacomelli C, Benvenuti E, Pellacani P, Elferink A, Morschhauser A, Sola L, Damin F, Chiari M, Whatton M, Haenni E, Kallweit D, Marabelli F, Peters J, Toffanin S. A Fully Integrated Miniaturized Optical Biosensor for Fast and Multiplexing Plasmonic Detection of High- and Low-Molecular-Weight Analytes. Adv Mater 2023:e2208719. [PMID: 36932736 DOI: 10.1002/adma.202208719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 03/14/2023] [Indexed: 05/06/2023]
Abstract
Optical biosensors based on plasmonic sensing schemes combine high sensitivity and selectivity with label-free detection. However, the use of bulky optical components is still hampering the possibility of obtaining miniaturized systems required for analysis in real settings. Here, a fully miniaturized optical biosensor prototype based on plasmonic detection is demonstrated, which enables fast and multiplex sensing of analytes with high- and low molecular weight (80 000 and 582 Da) as quality and safety parameters for milk: a protein (lactoferrin) and an antibiotic (streptomycin). The optical sensor is based on the smart integration of: i) miniaturized organic optoelectronic devices used as light-emitting and light-sensing elements and ii) a functionalized nanostructured plasmonic grating for highly sensitive and specific localized surface plasmon resonance (SPR) detection. The sensor provides quantitative and linear response reaching a limit of detection of 10-4 refractive index units once it is calibrated by standard solutions. Analyte-specific and rapid (15 min long) immunoassay-based detection is demonstrated for both targets. By using a custom algorithm based on principal-component analysis, a linear dose-response curve is constructed which correlates with a limit of detection (LOD) as low as 3.7 µg mL-1 for lactoferrin, thus assessing that the miniaturized optical biosensor is well-aligned with the chosen reference benchtop SPR method.
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Affiliation(s)
- Margherita Bolognesi
- Institute of Nanostructured Materials (ISMN) - National Research Council (CNR), Via P. Gobetti 101, Bologna, 40129, Italy
| | - Mario Prosa
- Institute of Nanostructured Materials (ISMN) - National Research Council (CNR), Via P. Gobetti 101, Bologna, 40129, Italy
| | - Michael Toerker
- Fraunhofer FEP, Winterbergstraße 28, 01277, Dresden, Germany
| | | | | | | | - Emilia Benvenuti
- Institute of Nanostructured Materials (ISMN) - National Research Council (CNR), Via P. Gobetti 101, Bologna, 40129, Italy
| | - Paola Pellacani
- Plasmore s.r.l, Viale Vittorio Emanuele II 4, Pavia, 27100, Italy
| | - Alexander Elferink
- Wageningen Food Safety Research - Wageningen University and Research, Akkermaalsbos 2, Wageningen, 6708 WB, The Netherlands
| | | | - Laura Sola
- SCITEC Istituto di Scienze e Tecnologie Chimiche "G. Natta" - National Research Council (CNR), Via Mario Bianco 9, Milano, 20131, Italy
| | - Francesco Damin
- SCITEC Istituto di Scienze e Tecnologie Chimiche "G. Natta" - National Research Council (CNR), Via Mario Bianco 9, Milano, 20131, Italy
| | - Marcella Chiari
- SCITEC Istituto di Scienze e Tecnologie Chimiche "G. Natta" - National Research Council (CNR), Via Mario Bianco 9, Milano, 20131, Italy
| | - Mark Whatton
- QuadraChem Laboratories Ltd (QCL), Riverside - Forest Row Business Park, East Sussex, RH18 5DW, UK
| | - Etienne Haenni
- CSEM Center Muttenz, Tramstrasse 99, Muttenz, CH-4132, Switzerland
| | - David Kallweit
- CSEM Center Muttenz, Tramstrasse 99, Muttenz, CH-4132, Switzerland
| | - Franco Marabelli
- Physics Department - University of Pavia, Via A. Bassi 6, Pavia, 27100, Italy
| | - Jeroen Peters
- Wageningen Food Safety Research - Wageningen University and Research, Akkermaalsbos 2, Wageningen, 6708 WB, The Netherlands
| | - Stefano Toffanin
- Institute of Nanostructured Materials (ISMN) - National Research Council (CNR), Via P. Gobetti 101, Bologna, 40129, Italy
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