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Azuaje-Hualde E, Komen J, Alonso-Cabrera JA, van den Berg A, de Pancorbo MM, van der Meer AD, Benito-Lopez F, Basabe-Desmonts L. Cell Patterning Technology on Polymethyl Methacrylate through Controlled Physicochemical and Biochemical Functionalization. BIOSENSORS 2023; 13:904. [PMID: 37887097 PMCID: PMC10604931 DOI: 10.3390/bios13100904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 09/14/2023] [Accepted: 09/19/2023] [Indexed: 10/28/2023]
Abstract
In recent years, innovative cell-based biosensing systems have been developed, showing impact in healthcare and life science research. Now, there is a need to design mass-production processes to enable their commercialization and reach society. However, current protocols for their fabrication employ materials that are not optimal for industrial production, and their preparation requires several chemical coating steps, resulting in cumbersome protocols. We have developed a simplified two-step method for generating controlled cell patterns on PMMA, a durable and transparent material frequently employed in the mass manufacturing of microfluidic devices. It involves air plasma and microcontact printing. This approach allows the formation of well-defined cell arrays on PMMA without the need for blocking agents to define the patterns. Patterns of various adherent cell types in dozens of individual cell cultures, allowing the regulation of cell-material and cell-cell interactions, were developed. These cell patterns were integrated into a microfluidic device, and their viability for more than 20 h under controlled flow conditions was demonstrated. This work demonstrated the potential to adapt polymeric cytophobic materials to simple fabrication protocols of cell-based microsystems, leveraging the possibilities for commercialization.
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Affiliation(s)
- Enrique Azuaje-Hualde
- Microfluidics Cluster UPV/EHU, BIOMICs Microfluidics Group, Lascaray Research Center, University of the Basque Country UPV/EHU, 01006 Vitoria-Gasteiz, Spain; (E.A.-H.); (J.A.A.-C.)
- Bioaraba Health Research Institute, Microfluidics Cluster UPV/EHU, 01009 Vitoria-Gasteiz, Spain
| | - Job Komen
- BIOS Lab on a Chip Group, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands; (J.K.); (A.v.d.B.)
| | - Juncal A. Alonso-Cabrera
- Microfluidics Cluster UPV/EHU, BIOMICs Microfluidics Group, Lascaray Research Center, University of the Basque Country UPV/EHU, 01006 Vitoria-Gasteiz, Spain; (E.A.-H.); (J.A.A.-C.)
- Microfluidics Cluster UPV/EHU, Analytical Microsystems & Materials for Lab-on-a-Chip (AMMa-LOAC) Group, Analytical Chemistry Department, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
| | - Albert van den Berg
- BIOS Lab on a Chip Group, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands; (J.K.); (A.v.d.B.)
| | - Marian M. de Pancorbo
- BIOMICs Research Group, Lascaray Research Center, University of the Basque Country UPV/EHU, 01006 Vitoria-Gasteiz, Spain;
| | - Andries D. van der Meer
- Applied Stem Cell Technologies, TechMed Centre, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands;
| | - Fernando Benito-Lopez
- Bioaraba Health Research Institute, Microfluidics Cluster UPV/EHU, 01009 Vitoria-Gasteiz, Spain
- Microfluidics Cluster UPV/EHU, Analytical Microsystems & Materials for Lab-on-a-Chip (AMMa-LOAC) Group, Analytical Chemistry Department, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
| | - Lourdes Basabe-Desmonts
- Microfluidics Cluster UPV/EHU, BIOMICs Microfluidics Group, Lascaray Research Center, University of the Basque Country UPV/EHU, 01006 Vitoria-Gasteiz, Spain; (E.A.-H.); (J.A.A.-C.)
- Bioaraba Health Research Institute, Microfluidics Cluster UPV/EHU, 01009 Vitoria-Gasteiz, Spain
- Basque Foundation of Science, IKERBASQUE, María Díaz Haroko Kalea, 3, 48013 Bilbao, Spain
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Biospeckle Analysis and Biofilm Electrostatic Tests, Two Useful Methods in Microbiology. Appl Microbiol 2021. [DOI: 10.3390/applmicrobiol1030036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The development of more sensitive methodologies, capable of quickly detecting and monitoring a microbial population present in a specific biological matrix, as well as performing to allow for the study of all its metabolic changes (e.g., during the formation of biofilm) to occur, is an essential requirement for both well-being and the food industry. Two techniques, in particular, have gained the attention of scientists: The first is “biospeckle”, an optical technique representing an innovative tool for applications in food quality, food safety, and nutraceuticals. With this technique, we can quickly evaluate and monitor the presence of bacteria (or their proliferation) in a solid or liquid biological matrix. In addition, the technique is helpful in quantifying and optimizing the correct storage time of the pro-biotics, if they are entrapped in matrices such as alginate and follow their survival rate in simulated gastro-intestinal conditions. A second technique with great chances is the “biofilm electrostatic test” (BET). BET undoubtedly represents a fast, simple, and highly reproducible tool suitable for admitting the evaluation of the in vitro bacterial capacity in order to adhere through an electrostatic interaction with a pyro-electrified carrier after only 2 h of incubation. BET could represent the way for a quick and standardized evaluation of bacterial resistance among biofilm-producing microorganisms through a fast evaluation of the potential presence of the biofilm.
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Oleandro E, Rega R, Mugnano M, Nazzaro F, Ferraro P, Grilli S. Quantitative determination of rapid biomass formation on pyro-electrified polymer sheets. Biofilm 2021; 3:100040. [PMID: 33447824 PMCID: PMC7798477 DOI: 10.1016/j.bioflm.2020.100040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 12/03/2020] [Accepted: 12/07/2020] [Indexed: 11/19/2022] Open
Abstract
The ability of a bacterial strain to form a biofilm is strictly related to its pathogenicity. Bacterial adherence and early biofilm formation are influenced by chemical, physical and biological factors that determine their pathogenic properties. We recently presented in literature the ability of pyro-electrified polymer sheets to promote rapid biofilm formation, based on what we called biofilm electrostatic test (BET) carriers. Here we performed a step forward by presenting a comprehensive characterization of the BET methodology through a quantitative evaluation of the biomass on the BET-carrier in the very early stages of incubation. Two bacterial suspensions of Escherichia coli were added to the surface of the BET-carrier, with one order of magnitude difference in initial optical density. The biofilms were stained at different incubation times, while the crystal violet assay and the live/dead reaction kit were used for evaluating the biomass and the viability, respectively. The BET-carrier systematically promoted a faster biofilm formation even in case of very diluted bacterial concentration. The results suggest that the BET-carrier could be used for evaluating rapidly the ability of bacteria to form biofilms and thus their inclination to pathogenicity, thanks to the challenging acceleration in biofilm formation.
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Affiliation(s)
- Emilia Oleandro
- Institute of Applied Sciences and Intelligent Systems “E. Caianiello”, National Research Council of Italy (CNR-ISASI), Via Campi Flegrei 34, 80078, Pozzuoli (Naples), Italy
- Università degli Studi della Campania Luigi Vanvitelli, Viale Abramo Lincoln, 5, 81100, Caserta, Italy
- Corresponding author. Institute of Applied Sciences and Intelligent Systems “E. Caianiello”, National Research Council of Italy (CNR-ISASI), Via Campi Flegrei 34, 80078, Pozzuoli (Naples), Italy.
| | - Romina Rega
- Institute of Applied Sciences and Intelligent Systems “E. Caianiello”, National Research Council of Italy (CNR-ISASI), Via Campi Flegrei 34, 80078, Pozzuoli (Naples), Italy
- Corresponding author.
| | - Martina Mugnano
- Institute of Applied Sciences and Intelligent Systems “E. Caianiello”, National Research Council of Italy (CNR-ISASI), Via Campi Flegrei 34, 80078, Pozzuoli (Naples), Italy
| | - Filomena Nazzaro
- Institute of Food Sciences, National Research Council of Italy (CNR-ISA), Via Roma, 64, 83100, Avellino, Italy
| | - Pietro Ferraro
- Institute of Applied Sciences and Intelligent Systems “E. Caianiello”, National Research Council of Italy (CNR-ISASI), Via Campi Flegrei 34, 80078, Pozzuoli (Naples), Italy
| | - Simonetta Grilli
- Institute of Applied Sciences and Intelligent Systems “E. Caianiello”, National Research Council of Italy (CNR-ISASI), Via Campi Flegrei 34, 80078, Pozzuoli (Naples), Italy
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Rega R, Mugnano M, Oleandro E, Tkachenko V, del Giudice D, Bagnato G, Ferraro P, Grilli S, Gangemi S. Detecting Collagen Molecules at Picogram Level through Electric Field-Induced Accumulation. SENSORS (BASEL, SWITZERLAND) 2020; 20:E3567. [PMID: 32599740 PMCID: PMC7349194 DOI: 10.3390/s20123567] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/19/2020] [Accepted: 06/22/2020] [Indexed: 12/24/2022]
Abstract
The demand for sensors capable of measuring low-abundant collagen in human fluids has highly increased in recent years. Indeed, collagen is expected to be a biomarker for chronic diseases and could monitor their progression. Here we show detection of highly diluted samples of collagen at picogram level thanks to an innovative pyro-electrohydrodynamic jet (p-jet) system. Through the intense electric fields generated by the pyroelectric effect in a ferroelectric crystal, the collagen solution was concentrated on a small area of a slide that was appropriately functionalized to bind proteins. The collagen molecules were labeled by an appropriate fluorophore to show how the number of tiny droplets influences the limit of detection of the technique. The results show that the p-jet is extremely promising for overcoming the current detection limits of collagen-based products in human fluids, performing 10 times better than the enzyme-linked immunosorbent assay (ELISA) and thus paving the way for the early diagnosis of related chronic diseases.
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Affiliation(s)
- Romina Rega
- Department of Physical Science and Technology of Matter, Institute of Applied Sciences and Intelligent Systems (ISASI), National Research Council of Italy (CNR), 80078 Pozzuoli (NA), Italy; (M.M.); (E.O.); (V.T.); (D.d.G.); (P.F.); (S.G.)
| | - Martina Mugnano
- Department of Physical Science and Technology of Matter, Institute of Applied Sciences and Intelligent Systems (ISASI), National Research Council of Italy (CNR), 80078 Pozzuoli (NA), Italy; (M.M.); (E.O.); (V.T.); (D.d.G.); (P.F.); (S.G.)
| | - Emilia Oleandro
- Department of Physical Science and Technology of Matter, Institute of Applied Sciences and Intelligent Systems (ISASI), National Research Council of Italy (CNR), 80078 Pozzuoli (NA), Italy; (M.M.); (E.O.); (V.T.); (D.d.G.); (P.F.); (S.G.)
- Department of Mathematics and Physics, University of Campania, 81100 Caserta, Italy
| | - Volodymyr Tkachenko
- Department of Physical Science and Technology of Matter, Institute of Applied Sciences and Intelligent Systems (ISASI), National Research Council of Italy (CNR), 80078 Pozzuoli (NA), Italy; (M.M.); (E.O.); (V.T.); (D.d.G.); (P.F.); (S.G.)
| | - Danila del Giudice
- Department of Physical Science and Technology of Matter, Institute of Applied Sciences and Intelligent Systems (ISASI), National Research Council of Italy (CNR), 80078 Pozzuoli (NA), Italy; (M.M.); (E.O.); (V.T.); (D.d.G.); (P.F.); (S.G.)
- Department of Mathematics and Physics, University of Campania, 81100 Caserta, Italy
| | - Gianluca Bagnato
- Division of Pneumology, Papardo Hospital, Contrada Papardo, 98122 Messina, Italy;
| | - Pietro Ferraro
- Department of Physical Science and Technology of Matter, Institute of Applied Sciences and Intelligent Systems (ISASI), National Research Council of Italy (CNR), 80078 Pozzuoli (NA), Italy; (M.M.); (E.O.); (V.T.); (D.d.G.); (P.F.); (S.G.)
| | - Simonetta Grilli
- Department of Physical Science and Technology of Matter, Institute of Applied Sciences and Intelligent Systems (ISASI), National Research Council of Italy (CNR), 80078 Pozzuoli (NA), Italy; (M.M.); (E.O.); (V.T.); (D.d.G.); (P.F.); (S.G.)
| | - Sebastiano Gangemi
- School and Operative Unit of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, 98122 Messina, Italy;
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