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López-Muñoz GA, Estévez MC, Vázquez-García M, Berenguel-Alonso M, Alonso-Chamarro J, Homs-Corbera A, Lechuga LM. Gold/silver/gold trilayer films on nanostructured polycarbonate substrates for direct and label-free nanoplasmonic biosensing. J Biophotonics 2018; 11:e201800043. [PMID: 29717543 DOI: 10.1002/jbio.201800043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 04/27/2018] [Indexed: 06/08/2023]
Abstract
Ultrasmooth gold/silver/gold trilayer nanostructured plasmonic sensors were obtained using commercial Blu-ray optical discs as nanoslits-based flexible polymer substrates. A thin gold film was used as an adhesion and nucleation layer to improve the chemical stability and reduce the surface roughness of the overlying silver film, without increasing ohmic plasmon losses. The structures were physically and optically characterized and compared with nanostructures of single gold layer. Ultrasmooth and chemically stable trilayer nanostructures with a surface roughness <0.5 nm were obtained following a simple and reproducible fabrication process. They showed a figure of merit (FOM) value up to 69.2 RIU-1 which is significantly higher (more than 95%) than the gold monolayer counterpart. Their potential for biosensing was demonstrated by employing the trilayer sensor for the direct and refractometric (label-free) detection of C-reactive protein (CRP) biomarker in undiluted urine achieving a Limit of Detection (LOD) in the pM order.
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Affiliation(s)
- Gerardo A López-Muñoz
- Nanobiosensors and Bioanalytical Applications Group (NanoB2A), Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
- CIBER-BBN Networking Center in Bioengineering, Biomaterials and Nanomedicine, Barcelona, Spain
| | - M-Carmen Estévez
- Nanobiosensors and Bioanalytical Applications Group (NanoB2A), Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
- CIBER-BBN Networking Center in Bioengineering, Biomaterials and Nanomedicine, Barcelona, Spain
| | - Marc Vázquez-García
- Nanobiosensors and Bioanalytical Applications Group (NanoB2A), Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Miguel Berenguel-Alonso
- Sensors & Biosensors Group, Department of Chemistry, Autonomous University of Barcelona, Edifici Cn, 08193, Bellaterra, Catalonia, Spain
| | - Julián Alonso-Chamarro
- Sensors & Biosensors Group, Department of Chemistry, Autonomous University of Barcelona, Edifici Cn, 08193, Bellaterra, Catalonia, Spain
| | - Antoni Homs-Corbera
- Nanobiosensors and Bioanalytical Applications Group (NanoB2A), Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Laura M Lechuga
- Nanobiosensors and Bioanalytical Applications Group (NanoB2A), Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
- CIBER-BBN Networking Center in Bioengineering, Biomaterials and Nanomedicine, Barcelona, Spain
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Berenguel-Alonso M, Sabés-Alsina M, Morató R, Ymbern O, Rodríguez-Vázquez L, Talló-Parra O, Alonso-Chamarro J, Puyol M, López-Béjar M. Rapid Prototyping of a Cyclic Olefin Copolymer Microfluidic Device for Automated Oocyte Culturing. SLAS Technol 2017; 22:507-517. [DOI: 10.1177/2472555216684625] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Assisted reproductive technology (ART) can benefit from the features of microfluidic technologies, such as the automation of time-consuming labor-intensive procedures, the possibility to mimic in vivo environments, and the miniaturization of the required equipment. To date, most of the proposed approaches are based on polydimethylsiloxane (PDMS) as platform substrate material due to its widespread use in academia, despite certain disadvantages, such as the elevated cost of mass production. Herein, we present a rapid fabrication process for a cyclic olefin copolymer (COC) monolithic microfluidic device combining hot embossing—using a low-temperature cofired ceramic (LTCC) master—and micromilling. The microfluidic device was suitable for trapping and maturation of bovine oocytes, which were further studied to determine their ability to be fertilized. Furthermore, another COC microfluidic device was fabricated to store sperm and assess its quality parameters over time. The study herein presented demonstrates a good biocompatibility of the COC when working with gametes, and it exhibits certain advantages, such as the nonabsorption of small molecules, gas impermeability, and low fabrication costs, all at the prototyping and mass production scale, thus taking a step further toward fully automated microfluidic devices in ART.
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Affiliation(s)
- Miguel Berenguel-Alonso
- Group of Sensors and Biosensors, Chemistry Department, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Maria Sabés-Alsina
- Department of Animal Health and Anatomy, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Roser Morató
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Department of Biology, Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
| | - Oriol Ymbern
- Group of Sensors and Biosensors, Chemistry Department, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Laura Rodríguez-Vázquez
- Department of Animal Health and Anatomy, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Oriol Talló-Parra
- Department of Animal Health and Anatomy, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Julián Alonso-Chamarro
- Group of Sensors and Biosensors, Chemistry Department, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Mar Puyol
- Group of Sensors and Biosensors, Chemistry Department, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Manel López-Béjar
- Department of Animal Health and Anatomy, Universitat Autònoma de Barcelona, Bellaterra, Spain
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Berenguel-Alonso M, Sabés-Alsina M, Morató R, Ymbern O, Rodríguez-Vázquez L, Talló-Parra O, Alonso-Chamarro J, Puyol M, López-Béjar M. Rapid Prototyping of a Cyclic Olefin Copolymer Microfluidic Device for Automated Oocyte Culturing. SLAS Technol 2017; 22:2472630316684625. [PMID: 28346053 DOI: 10.1177/2472630316684625] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Assisted reproductive technology (ART) can benefit from the features of microfluidic technologies, such as the automation of time-consuming labor-intensive procedures, the possibility to mimic in vivo environments, and the miniaturization of the required equipment. To date, most of the proposed approaches are based on polydimethylsiloxane (PDMS) as platform substrate material due to its widespread use in academia, despite certain disadvantages, such as the elevated cost of mass production. Herein, we present a rapid fabrication process for a cyclic olefin copolymer (COC) monolithic microfluidic device combining hot embossing-using a low-temperature cofired ceramic (LTCC) master-and micromilling. The microfluidic device was suitable for trapping and maturation of bovine oocytes, which were further studied to determine their ability to be fertilized. Furthermore, another COC microfluidic device was fabricated to store sperm and assess its quality parameters over time. The study herein presented demonstrates a good biocompatibility of the COC when working with gametes, and it exhibits certain advantages, such as the nonabsorption of small molecules, gas impermeability, and low fabrication costs, all at the prototyping and mass production scale, thus taking a step further toward fully automated microfluidic devices in ART.
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Affiliation(s)
- Miguel Berenguel-Alonso
- 1 Group of Sensors and Biosensors, Chemistry Department, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Maria Sabés-Alsina
- 2 Department of Animal Health and Anatomy, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Roser Morató
- 3 Biotechnology of Animal and Human Reproduction (TechnoSperm), Department of Biology, Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
| | - Oriol Ymbern
- 1 Group of Sensors and Biosensors, Chemistry Department, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Laura Rodríguez-Vázquez
- 2 Department of Animal Health and Anatomy, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Oriol Talló-Parra
- 2 Department of Animal Health and Anatomy, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Julián Alonso-Chamarro
- 1 Group of Sensors and Biosensors, Chemistry Department, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Mar Puyol
- 1 Group of Sensors and Biosensors, Chemistry Department, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Manel López-Béjar
- 2 Department of Animal Health and Anatomy, Universitat Autònoma de Barcelona, Bellaterra, Spain
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Ymbern O, Berenguel-Alonso M, Calvo-López A, Gómez-de Pedro S, Izquierdo D, Alonso-Chamarro J. Versatile Lock and Key Assembly for Optical Measurements with Microfluidic Platforms and Cartridges. Anal Chem 2015; 87:1503-8. [DOI: 10.1021/ac504255t] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Oriol Ymbern
- Sensors & Biosensors Group, Department of Chemistry, Universitat Autònoma de Barcelona, Edifici Cn, 08193 Bellaterra, Catalonia, Spain
| | - Miguel Berenguel-Alonso
- Sensors & Biosensors Group, Department of Chemistry, Universitat Autònoma de Barcelona, Edifici Cn, 08193 Bellaterra, Catalonia, Spain
| | - Antonio Calvo-López
- Sensors & Biosensors Group, Department of Chemistry, Universitat Autònoma de Barcelona, Edifici Cn, 08193 Bellaterra, Catalonia, Spain
| | - Sara Gómez-de Pedro
- Sensors & Biosensors Group, Department of Chemistry, Universitat Autònoma de Barcelona, Edifici Cn, 08193 Bellaterra, Catalonia, Spain
| | - David Izquierdo
- Centro Universitario de la Defensa, Academia General Militar, Carretera de Huesca, s/n, 50090 Zaragoza, Spain
| | - Julián Alonso-Chamarro
- Sensors & Biosensors Group, Department of Chemistry, Universitat Autònoma de Barcelona, Edifici Cn, 08193 Bellaterra, Catalonia, Spain
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Berenguel-Alonso M, Granados X, Faraudo J, Alonso-Chamarro J, Puyol M. Magnetic actuator for the control and mixing of magnetic bead-based reactions on-chip. Anal Bioanal Chem 2014; 406:6607-16. [DOI: 10.1007/s00216-014-8100-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 08/07/2014] [Accepted: 08/08/2014] [Indexed: 10/24/2022]
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