1
|
Bianco M, Zizzari A, Perrone E, Mangiullo D, Mazzeo M, Viola I, Arima V. Catalase Detection via Membrane-Based Pressure Sensors. Molecules 2024; 29:1506. [PMID: 38611786 PMCID: PMC11013101 DOI: 10.3390/molecules29071506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/22/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Membrane-based sensors (MePSs) exhibit remarkable precision and sensitivity in detecting pressure changes. MePSs are commonly used to monitor catalytic reactions in solution, generating gas products crucial for signal amplification in bioassays. They also allow for catalyst quantification by indirectly measuring the pressure generated by the gaseous products. This is particularly interesting for detecting enzymes in biofluids associated with disease onset. To enhance the performance of a MePS, various structural factors influence membrane flexibility and response time, ultimately dictating the device's pressure sensitivity. In this study, we fabricated MePSs using polydimethylsiloxane (PDMS) and investigated how structural modifications affect the Young's modulus (E) and residual stress (σ0) of the membranes. These modifications have a direct impact on the sensors' sensitivity to pressure variations, observed as a function of the volume of the chamber (Σ) or of the mechanical properties of the membrane itself (S). MePSs exhibiting the highest sensitivities were then employed to detect catalyst quantities inducing the dismutation of hydrogen peroxide, producing dioxygen as a gaseous product. As a result, a catalase enzyme was successfully detected using these optimized MePSs, achieving a remarkable sensitivity of (22.7 ± 1.2) µm/nM and a limit of detection (LoD) of 396 pM.
Collapse
Affiliation(s)
- Monica Bianco
- CNR NANOTEC—Institute of Nanotechnology, c/o Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy; (M.B.); (A.Z.); (E.P.); (D.M.)
| | - Alessandra Zizzari
- CNR NANOTEC—Institute of Nanotechnology, c/o Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy; (M.B.); (A.Z.); (E.P.); (D.M.)
| | - Elisabetta Perrone
- CNR NANOTEC—Institute of Nanotechnology, c/o Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy; (M.B.); (A.Z.); (E.P.); (D.M.)
| | - Diego Mangiullo
- CNR NANOTEC—Institute of Nanotechnology, c/o Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy; (M.B.); (A.Z.); (E.P.); (D.M.)
| | - Marco Mazzeo
- Department of Mathematics and Physics “E. De Giorgi”, University of Salento, 73100 Lecce, Italy;
| | - Ilenia Viola
- CNR NANOTEC—Institute of Nanotechnology, S.Li.M Lab, c/o Department of Physics, Sapienza University, P.le A. Moro 5, 00185 Rome, Italy
| | - Valentina Arima
- CNR NANOTEC—Institute of Nanotechnology, c/o Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy; (M.B.); (A.Z.); (E.P.); (D.M.)
| |
Collapse
|
2
|
Bianco M, Zizzari A, Priore P, Moroni L, Metrangolo P, Frigione M, Rella R, Gaballo A, Arima V. Lab-on-a-brane for spheroid formation. Biofabrication 2019; 11:021002. [PMID: 30776782 DOI: 10.1088/1758-5090/ab0813] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Lab-On-a-Brane (LOB) represents a class of Lab-On-a-Chip (LOC) integrating flexible, highly gas permeable and biocompatible thin membranes (TMs). Here we demonstrate the potentiality of LOBs as cell biochips promoting 3D cell growth. The human cancer cells MCF-7 were cultured into standard multiwells (MWs) and into polydimethylsiloxane (PDMS) MWs, LOCs, and LOBs of different wettability. Surface treatments based on oxygen plasma and coating deposition have been performed to produce hydrophilic, hydrophobic, and oleophobic chips. By a comparison between all these chips, we observed that 3D cell aggregation is favored in LOBs, independent of substrate wettability. This may be attributed to the TM flexibility and the high oxygen/carbon dioxide permeability. Ultimately, LOBs seem to combine the advantages of LOCs as multi-well microfluidic chips to reduce operation time for cell seeding and medium refresh, with the mechanical/morphological properties of PDMS TMs. This is convenient in the perspective of applying mechanical stimuli and monitoring cell stiffness, or studying the metabolism of molecules permeable to PDMS membrane in response to external stimuli with interesting outcomes in cellular biology.
Collapse
Affiliation(s)
- M Bianco
- CNR-NANOTEC, Institute of Nanotechnology c/o Campus Ecotekne, Lecce, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
3
|
Zizzari A, Bianco M, del Mercato LL, Sorarù A, Carraro M, Pellegrino P, Perrone E, Monteduro AG, Bonchio M, Rinaldi R, Viola I, Arima V. Highly Sensitive Membrane-Based Pressure Sensors (MePS) for Real-Time Monitoring of Catalytic Reactions. Anal Chem 2018; 90:7659-7665. [DOI: 10.1021/acs.analchem.8b01531] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alessandra Zizzari
- CNR NANOTEC - Institute of Nanotechnology c/o Campus Ecotekne, via Monteroni, 73100, Lecce, Italy
- Department of Mathematics and Physics E. De Giorgi, University of Salento, 73100, Lecce, Italy
| | - Monica Bianco
- CNR NANOTEC - Institute of Nanotechnology c/o Campus Ecotekne, via Monteroni, 73100, Lecce, Italy
| | - Loretta L. del Mercato
- CNR NANOTEC - Institute of Nanotechnology c/o Campus Ecotekne, via Monteroni, 73100, Lecce, Italy
| | - Antonio Sorarù
- ITM-CNR and Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Mauro Carraro
- ITM-CNR and Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Paolo Pellegrino
- Department of Mathematics and Physics E. De Giorgi, University of Salento, 73100, Lecce, Italy
| | - Elisabetta Perrone
- CNR NANOTEC - Institute of Nanotechnology c/o Campus Ecotekne, via Monteroni, 73100, Lecce, Italy
| | - Anna G. Monteduro
- National Institute of Gastroenterology “S. De Bellis” Research Hospital, via Turi 27, 70013, Castellana Grotte (Bari), Italy
| | - Marcella Bonchio
- ITM-CNR and Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Rosaria Rinaldi
- Department of Mathematics and Physics E. De Giorgi, University of Salento, 73100, Lecce, Italy
| | - Ilenia Viola
- CNR NANOTEC - Institute of Nanotechnology, S.Li.M Lab, c/o Department of Physics, Sapienza University, P.le A. Moro 5, 00185, Rome, Italy
| | - Valentina Arima
- CNR NANOTEC - Institute of Nanotechnology c/o Campus Ecotekne, via Monteroni, 73100, Lecce, Italy
| |
Collapse
|