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McGlumphy S, Damai A, Salameh L, Corbin GB, Wang Q, Markiewicz J, Mosher JJ, Spitzer N, Quiñones R. Biocompatible antibiotic-coupled nickel-titanium nanoparticles as a potential coating material for biomedical devices. Heliyon 2024; 10:e31434. [PMID: 38831845 PMCID: PMC11145499 DOI: 10.1016/j.heliyon.2024.e31434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 05/04/2024] [Accepted: 05/15/2024] [Indexed: 06/05/2024] Open
Abstract
The challenges facing metallic implants for reconstructive surgery include the leaching of toxic metal ions, a mismatch in elastic modulus between the implant and the treated tissue, and the risk of infection. These problems can be addressed by passivating the metal surface with an organic substrate and incorporating antibiotic molecules. Nitinol (NiTi), a nickel-titanium alloy, is used in devices for biomedical applications due to its shape memory and superelasticity. However, unmodified NiTi carries a risk of localized nickel toxicity and inadequately supports angiogenesis or neuroregeneration due to limited cell adhesion, poor biomineralization, and little antibacterial activity. To address these challenges, NiTi nanoparticles were modified using self-assembled phosphonic acid monolayers and functionalized with the antibiotics ceftriaxone and vancomycin via the formation of an amide. Surface modifications were monitored to confirm that phosphonic acid modifications were present on NiTi nanoparticles and 100% of the samples formed ordered films. Modifications were stable for more than a year. Elemental composition showed the presence of nickel, titanium, and phosphorus (1.9% for each sample) after surface modifications. Dynamic light scattering analysis suggested some agglomeration in solution. However, scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy confirmed a particle size distribution of <100 nm, the even distribution of nanoparticles on coverslips, and elemental composition before and after cell culture. B35 neuroblastoma cells exhibited no inhibition of survival and extended neurites of approximately 100 μm in total length when cultured on coverslips coated with only poly-l-lysine or with phosphonic acid-modified NiTi, indicating high biocompatibility. The ability to support neural cell growth and differentiation makes modified NiTi nanoparticles a promising coating for surfaces in metallic bone and nerve implants. NiTi nanoparticles functionalized with ceftriaxone inhibited Escherichia coli and Serratia marcescens (SM6) at doses of 375 and 750 μg whereas the growth of Bacillus subtilis was inhibited by a dose of only 37.5 μg. NiTi-vancomycin was effective against B. subtilis at all doses even after mammalian cell culture. These are common bacteria associated with infected implants, further supporting the potential use of functionalized NiTi in coating reconstructive implants.
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Affiliation(s)
- Sarah McGlumphy
- Department of Chemistry, Marshall University, Huntington, WV, 25755, USA
- Department of Biological Sciences, Marshall University, Huntington, WV, 25755, USA
| | - Aakriti Damai
- Department of Chemistry, Marshall University, Huntington, WV, 25755, USA
- Department of Biological Sciences, Marshall University, Huntington, WV, 25755, USA
| | - Lena Salameh
- Department of Chemistry, Marshall University, Huntington, WV, 25755, USA
| | - Gabriell B. Corbin
- Department of Biological Sciences, Marshall University, Huntington, WV, 25755, USA
| | - Qiang Wang
- Shared Research Facilities, West Virginia University, Morgantown, WV, 25606, USA
| | - John Markiewicz
- Department of Chemistry, Marshall University, Huntington, WV, 25755, USA
| | - Jennifer J. Mosher
- Department of Biological Sciences, Marshall University, Huntington, WV, 25755, USA
| | - Nadja Spitzer
- Department of Biological Sciences, Marshall University, Huntington, WV, 25755, USA
| | - Rosalynn Quiñones
- Department of Chemistry, Marshall University, Huntington, WV, 25755, USA
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Sharbatian A, Devkota K, Ashouri Vajari D, Stieglitz T. From Bioinspired Topographies toward Non-Wettable Neural Implants. MICROMACHINES 2023; 14:1846. [PMID: 37893283 PMCID: PMC10609157 DOI: 10.3390/mi14101846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/21/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023]
Abstract
The present study investigates different design strategies to produce non-wettable micropatterned surfaces. In addition to the classical method of measuring the contact angle, the non-wettability is also discussed by means of the immersion test. Inspired by non-wettable structures found in nature, the effects of features such as reentrant cavities, micropillars, and overhanging layers are studied. We show that a densely populated array of small diameter cavities exhibits superior non-wettability, with 65% of the cavities remaining intact after 24 h of full immersion in water. In addition, it is suggested that the wetting transition time is influenced by the length of the overhanging layer as well as by the number of columns within the cavity. Our findings indicate a non-wetting performance that is three times longer than previously reported in the literature for a small, densely populated design with cavities as small as 10 μm in diameter. Such properties are particularly beneficial for neural implants as they may reduce the interface between the body fluid and the solid state, thereby minimiing the inflammatory response following implantation injury. In order to assess the effectiveness of this approach in reducing the immune response induced by neural implants, further in vitro and in vivo studies will be essential.
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Affiliation(s)
- Ali Sharbatian
- Laboratory for Biomedical Microtechnology, Department of Microsystems Engineering (IMTEK), University of Freiburg, 79110 Freiburg, Germany; (A.S.); (T.S.)
- BrainLinks BrainTools, Institute for Machine-Brain Interfacing Technology (IMBIT), University of Freiburg, 79110 Freiburg, Germany
| | - Kalyani Devkota
- Laboratory for Biomedical Microtechnology, Department of Microsystems Engineering (IMTEK), University of Freiburg, 79110 Freiburg, Germany; (A.S.); (T.S.)
- BrainLinks BrainTools, Institute for Machine-Brain Interfacing Technology (IMBIT), University of Freiburg, 79110 Freiburg, Germany
| | - Danesh Ashouri Vajari
- Laboratory for Biomedical Microtechnology, Department of Microsystems Engineering (IMTEK), University of Freiburg, 79110 Freiburg, Germany; (A.S.); (T.S.)
- BrainLinks BrainTools, Institute for Machine-Brain Interfacing Technology (IMBIT), University of Freiburg, 79110 Freiburg, Germany
| | - Thomas Stieglitz
- Laboratory for Biomedical Microtechnology, Department of Microsystems Engineering (IMTEK), University of Freiburg, 79110 Freiburg, Germany; (A.S.); (T.S.)
- BrainLinks BrainTools, Institute for Machine-Brain Interfacing Technology (IMBIT), University of Freiburg, 79110 Freiburg, Germany
- Bernstein Center Freiburg, University of Freiburg, 79104 Freiburg, Germany
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Castillo Ransanz L, Van Altena PFJ, Heine VM, Accardo A. Engineered cell culture microenvironments for mechanobiology studies of brain neural cells. Front Bioeng Biotechnol 2022; 10:1096054. [PMID: 36588937 PMCID: PMC9794772 DOI: 10.3389/fbioe.2022.1096054] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 11/29/2022] [Indexed: 12/15/2022] Open
Abstract
The biomechanical properties of the brain microenvironment, which is composed of different neural cell types, the extracellular matrix, and blood vessels, are critical for normal brain development and neural functioning. Stiffness, viscoelasticity and spatial organization of brain tissue modulate proliferation, migration, differentiation, and cell function. However, the mechanical aspects of the neural microenvironment are largely ignored in current cell culture systems. Considering the high promises of human induced pluripotent stem cell- (iPSC-) based models for disease modelling and new treatment development, and in light of the physiological relevance of neuromechanobiological features, applications of in vitro engineered neuronal microenvironments should be explored thoroughly to develop more representative in vitro brain models. In this context, recently developed biomaterials in combination with micro- and nanofabrication techniques 1) allow investigating how mechanical properties affect neural cell development and functioning; 2) enable optimal cell microenvironment engineering strategies to advance neural cell models; and 3) provide a quantitative tool to assess changes in the neuromechanobiological properties of the brain microenvironment induced by pathology. In this review, we discuss the biological and engineering aspects involved in studying neuromechanobiology within scaffold-free and scaffold-based 2D and 3D iPSC-based brain models and approaches employing primary lineages (neural/glial), cell lines and other stem cells. Finally, we discuss future experimental directions of engineered microenvironments in neuroscience.
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Affiliation(s)
- Lucía Castillo Ransanz
- Department of Child and Adolescence Psychiatry, Amsterdam Neuroscience, Emma Children’s Hospital, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Pieter F. J. Van Altena
- Department of Precision and Microsystems Engineering, Delft University of Technology, Delft, Netherlands
| | - Vivi M. Heine
- Department of Child and Adolescence Psychiatry, Amsterdam Neuroscience, Emma Children’s Hospital, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, Netherlands,Center for Neurogenomics and Cognitive Research, Vrije Universiteit Amsterdam, Amsterdam Neuroscience, Department of Complex Trait Genetics, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, Netherlands,*Correspondence: Vivi M. Heine, ; Angelo Accardo,
| | - Angelo Accardo
- Department of Precision and Microsystems Engineering, Delft University of Technology, Delft, Netherlands,*Correspondence: Vivi M. Heine, ; Angelo Accardo,
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Moretti M, Limongi T, Testi C, Milanetti E, De Angelis MT, Parrotta EI, Scalise S, Santamaria G, Allione M, Lopatin S, Torre B, Zhang P, Marini M, Perozziello G, Candeloro P, Pirri CF, Ruocco G, Cuda G, Di Fabrizio E. Direct Visualization and Identification of Membrane Voltage-Gated Sodium Channels from Human iPSC-Derived Neurons by Multiple Imaging and Light Enhanced Spectroscopy. SMALL METHODS 2022; 6:e2200402. [PMID: 35595684 DOI: 10.1002/smtd.202200402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/22/2022] [Indexed: 06/15/2023]
Abstract
In this study, transmission electron microscopy atomic force microscopy, and surface enhanced Raman spectroscopy are combined through a direct imaging approach, to gather structural and chemical information of complex molecular systems such as ion channels in their original plasma membrane. Customized microfabricated sample holder allows to characterize Nav channels embedded in the original plasma membrane extracted from neuronal cells that are derived from healthy human induced pluripotent stem cells. The identification of the channels is accomplished by using two different approaches, one of them widely used in cryo-EM (the particle analysis method) and the other based on a novel Zernike Polynomial expansion of the images bitmap. This approach allows to carry out a whole series of investigations, one complementary to the other, on the same sample, preserving its state as close as possible to the original membrane configuration.
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Affiliation(s)
- Manola Moretti
- King Abdullah University of Science and Technology, SMILEs lab, PSE Division, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Tania Limongi
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129, Torino, Italy
| | - Claudia Testi
- Center for Life Nanoscience, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161, Rome, Italy
| | - Edoardo Milanetti
- Center for Life Nanoscience, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161, Rome, Italy
- Department of Physics, Sapienza University, Piazzale Aldo Moro 5, Rome, 00185, Italy
| | - Maria Teresa De Angelis
- Laboratory of Stem Cell Biology, Department of Experimental and Clinical Medicine, University Magna Graecia, Campus S. Venuta, Viale Europa, Catanzaro, 88100, Italy
| | - Elvira I Parrotta
- Laboratory of Stem Cell Biology, Department of Experimental and Clinical Medicine, University Magna Graecia, Campus S. Venuta, Viale Europa, Catanzaro, 88100, Italy
| | - Stefania Scalise
- Laboratory of Stem Cell Biology, Department of Experimental and Clinical Medicine, University Magna Graecia, Campus S. Venuta, Viale Europa, Catanzaro, 88100, Italy
| | - Gianluca Santamaria
- Laboratory of Stem Cell Biology, Department of Experimental and Clinical Medicine, University Magna Graecia, Campus S. Venuta, Viale Europa, Catanzaro, 88100, Italy
| | - Marco Allione
- King Abdullah University of Science and Technology, SMILEs lab, PSE Division, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Sergei Lopatin
- King Abdullah University of Science and Technology, Imaging and Characterization Core lab, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Bruno Torre
- King Abdullah University of Science and Technology, SMILEs lab, PSE Division, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Peng Zhang
- King Abdullah University of Science and Technology, SMILEs lab, PSE Division, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Monica Marini
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129, Torino, Italy
| | - Gerardo Perozziello
- BionNEM lab and Nanotechnology Research Center, Department of Experimental and Clinical Medicine, University Magna Graecia, Campus S. Venuta, Viale Europa, Catanzaro, 88100, Italy
| | - Patrizio Candeloro
- BionNEM lab and Nanotechnology Research Center, Department of Experimental and Clinical Medicine, University Magna Graecia, Campus S. Venuta, Viale Europa, Catanzaro, 88100, Italy
| | - Candido Fabrizio Pirri
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129, Torino, Italy
| | - Giancarlo Ruocco
- Department of Physics, Sapienza University, Piazzale Aldo Moro 5, Rome, 00185, Italy
| | - Giovanni Cuda
- Laboratory of Stem Cell Biology, Department of Experimental and Clinical Medicine, University Magna Graecia, Campus S. Venuta, Viale Europa, Catanzaro, 88100, Italy
| | - Enzo Di Fabrizio
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129, Torino, Italy
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Microfluidics for 3D Cell and Tissue Cultures: Microfabricative and Ethical Aspects Updates. Cells 2022; 11:cells11101699. [PMID: 35626736 PMCID: PMC9139493 DOI: 10.3390/cells11101699] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/16/2022] [Accepted: 05/18/2022] [Indexed: 12/10/2022] Open
Abstract
The necessity to improve in vitro cell screening assays is becoming ever more important. Pharmaceutical companies, research laboratories and hospitals require technologies that help to speed up conventional screening and therapeutic procedures to produce more data in a short time in a realistic and reliable manner. The design of new solutions for test biomaterials and active molecules is one of the urgent problems of preclinical screening and the limited correlation between in vitro and in vivo data remains one of the major issues. The establishment of the most suitable in vitro model provides reduction in times, costs and, last but not least, in the number of animal experiments as recommended by the 3Rs (replace, reduce, refine) ethical guiding principles for testing involving animals. Although two-dimensional (2D) traditional cell screening assays are generally cheap and practical to manage, they have strong limitations, as cells, within the transition from the three-dimensional (3D) in vivo to the 2D in vitro growth conditions, do not properly mimic the real morphologies and physiology of their native tissues. In the study of human pathologies, especially, animal experiments provide data closer to what happens in the target organ or apparatus, but they imply slow and costly procedures and they generally do not fully accomplish the 3Rs recommendations, i.e., the amount of laboratory animals and the stress that they undergo must be minimized. Microfluidic devices seem to offer different advantages in relation to the mentioned issues. This review aims to describe the critical issues connected with the conventional cells culture and screening procedures, showing what happens in the in vivo physiological micro and nano environment also from a physical point of view. During the discussion, some microfluidic tools and their components are described to explain how these devices can circumvent the actual limitations described in the introduction.
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Terzopoulou Z, Zamboulis A, Koumentakou I, Michailidou G, Noordam MJ, Bikiaris DN. Biocompatible Synthetic Polymers for Tissue Engineering Purposes. Biomacromolecules 2022; 23:1841-1863. [PMID: 35438479 DOI: 10.1021/acs.biomac.2c00047] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Synthetic polymers have been an integral part of modern society since the early 1960s. Besides their most well-known applications to the public, such as packaging, construction, textiles and electronics, synthetic polymers have also revolutionized the field of medicine. Starting with the first plastic syringe developed in 1955 to the complex polymeric materials used in the regeneration of tissues, their contributions have never been more prominent. Decades of research on polymeric materials, stem cells, and three-dimensional printing contributed to the rapid progress of tissue engineering and regenerative medicine that envisages the potential future of organ transplantations. This perspective discusses the role of synthetic polymers in tissue engineering, their design and properties in relation to each type of application. Additionally, selected recent achievements of tissue engineering using synthetic polymers are outlined to provide insight into how they will contribute to the advancement of the field in the near future. In this way, we aim to provide a guide that will help scientists with synthetic polymer design and selection for different tissue engineering applications.
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Affiliation(s)
- Zoi Terzopoulou
- Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Alexandra Zamboulis
- Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Ioanna Koumentakou
- Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Georgia Michailidou
- Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Michiel Jan Noordam
- Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Dimitrios N Bikiaris
- Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
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Weir N, Stevens B, Wagner S, Miles A, Ball G, Howard C, Chemmarappally J, McGinnity M, Hargreaves AJ, Tinsley C. Aligned Poly-l-lactic Acid Nanofibers Induce Self-Assembly of Primary Cortical Neurons into 3D Cell Clusters. ACS Biomater Sci Eng 2022; 8:765-776. [PMID: 35084839 DOI: 10.1021/acsbiomaterials.1c01102] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Relative to two-dimensional (2D) culture, three-dimensional (3D) culture of primary neurons has yielded increasingly physiological responses from cells. Electrospun nanofiber scaffolds are frequently used as a 3D biomaterial support for primary neurons in neural tissue engineering, while hydrophobic surfaces typically induce aggregation of cells. Poly-l-lactic acid (PLLA) was electrospun as aligned PLLA nanofiber scaffolds to generate a structure with both qualities. Primary cortical neurons from E18 Sprague-Dawley rats cultured on aligned PLLA nanofibers generated 3D clusters of cells that extended highly aligned, fasciculated neurite bundles within 10 days. These clusters were viable for 28 days and responsive to AMPA and GABA. Relative to the 2D culture, the 3D cultures exhibited a more developed profile; mass spectrometry demonstrated an upregulation of proteins involved in cortical lamination, polarization, and axon fasciculation and a downregulation of immature neuronal markers. The use of artificial neural network inference suggests that the increased formation of synapses may drive the increase in development that is observed for the 3D cell clusters. This research suggests that aligned PLLA nanofibers may be highly useful for generating advanced 3D cell cultures for high-throughput systems.
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Affiliation(s)
- Nick Weir
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, U.K
| | - Bob Stevens
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, U.K
| | - Sarah Wagner
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, U.K
| | - Amanda Miles
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, U.K
| | - Graham Ball
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, U.K
| | - Charlotte Howard
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, U.K
| | - Joseph Chemmarappally
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, U.K
| | - Martin McGinnity
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, U.K
| | - Alan Jeffrey Hargreaves
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, U.K
| | - Chris Tinsley
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, U.K
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Allione M, Limongi T, Marini M, Torre B, Zhang P, Moretti M, Perozziello G, Candeloro P, Napione L, Pirri CF, Di Fabrizio E. Micro/Nanopatterned Superhydrophobic Surfaces Fabrication for Biomolecules and Biomaterials Manipulation and Analysis. MICROMACHINES 2021; 12:1501. [PMID: 34945349 PMCID: PMC8708205 DOI: 10.3390/mi12121501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/19/2021] [Accepted: 11/25/2021] [Indexed: 01/04/2023]
Abstract
Superhydrophobic surfaces display an extraordinary repulsion to water and water-based solutions. This effect emerges from the interplay of intrinsic hydrophobicity of the surface and its morphology. These surfaces have been established for a long time and have been studied for decades. The increasing interest in recent years has been focused towards applications in many different fields and, in particular, biomedical applications. In this paper, we review the progress achieved in the last years in the fabrication of regularly patterned superhydrophobic surfaces in many different materials and their exploitation for the manipulation and characterization of biomaterial, with particular emphasis on the issues affecting the yields of the fabrication processes and the quality of the manufactured devices.
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Affiliation(s)
- Marco Allione
- Center for Sustainable Future Technologies @POLITO, Istituto Italiano di Tecnologia, Via Livorno 60, 10144 Turin, Italy;
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (M.M.); (B.T.); (L.N.); (E.D.F.)
| | - Tania Limongi
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (M.M.); (B.T.); (L.N.); (E.D.F.)
| | - Monica Marini
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (M.M.); (B.T.); (L.N.); (E.D.F.)
| | - Bruno Torre
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (M.M.); (B.T.); (L.N.); (E.D.F.)
| | - Peng Zhang
- Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (P.Z.); (M.M.)
| | - Manola Moretti
- Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (P.Z.); (M.M.)
| | - Gerardo Perozziello
- BioNEM Laboratory, Department of Experimental and Clinical Medicine, Campus S. Venuta, Magna Graecia University, Germaneto, Viale Europa, 88100 Catanzaro, Italy; (G.P.); (P.C.)
| | - Patrizio Candeloro
- BioNEM Laboratory, Department of Experimental and Clinical Medicine, Campus S. Venuta, Magna Graecia University, Germaneto, Viale Europa, 88100 Catanzaro, Italy; (G.P.); (P.C.)
| | - Lucia Napione
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (M.M.); (B.T.); (L.N.); (E.D.F.)
| | - Candido Fabrizio Pirri
- Center for Sustainable Future Technologies @POLITO, Istituto Italiano di Tecnologia, Via Livorno 60, 10144 Turin, Italy;
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (M.M.); (B.T.); (L.N.); (E.D.F.)
| | - Enzo Di Fabrizio
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (M.M.); (B.T.); (L.N.); (E.D.F.)
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Modafferi S, Zhong X, Kleensang A, Murata Y, Fagiani F, Pamies D, Hogberg HT, Calabrese V, Lachman H, Hartung T, Smirnova L. Gene-Environment Interactions in Developmental Neurotoxicity: a Case Study of Synergy between Chlorpyrifos and CHD8 Knockout in Human BrainSpheres. ENVIRONMENTAL HEALTH PERSPECTIVES 2021; 129:77001. [PMID: 34259569 PMCID: PMC8278985 DOI: 10.1289/ehp8580] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 05/31/2021] [Accepted: 06/04/2021] [Indexed: 05/27/2023]
Abstract
BACKGROUND Autism spectrum disorder (ASD) is a major public health concern caused by complex genetic and environmental components. Mechanisms of gene-environment (G × E ) interactions and reliable biomarkers associated with ASD are mostly unknown or controversial. Induced pluripotent stem cells (iPSCs) from patients or with clustered regularly interspaced short palindromic repeats and CRISPR-associated protein 9 (CRISPR/Cas9)-introduced mutations in candidate ASD genes provide an opportunity to study (G × E ) interactions. OBJECTIVES In this study, we aimed to identify a potential synergy between mutation in the high-risk autism gene encoding chromodomain helicase DNA binding protein 8 (CHD8) and environmental exposure to an organophosphate pesticide (chlorpyrifos; CPF) in an iPSC-derived human three-dimensional (3D) brain model. METHODS This study employed human iPSC-derived 3D brain organoids (BrainSpheres) carrying a heterozygote CRISPR/Cas9-introduced inactivating mutation in CHD8 and exposed to CPF or its oxon-metabolite (CPO). Neural differentiation, viability, oxidative stress, and neurite outgrowth were assessed, and levels of main neurotransmitters and selected metabolites were validated against human data on ASD metabolic derangements. RESULTS Expression of CHD8 protein was significantly lower in CHD8 heterozygous knockout (C H D 8 + / - ) BrainSpheres compared with C H D 8 + / + ones. Exposure to CPF/CPO treatment further reduced CHD8 protein levels, showing the potential (G × E ) interaction synergy. A novel approach for validation of the model was chosen: from the literature, we identified a panel of metabolic biomarkers in patients and assessed them by targeted metabolomics in vitro. A synergistic effect was observed on the cholinergic system, S-adenosylmethionine, S-adenosylhomocysteine, lactic acid, tryptophan, kynurenic acid, and α -hydroxyglutaric acid levels. Neurite outgrowth was perturbed by CPF/CPO exposure. Heterozygous knockout of CHD8 in BrainSpheres led to an imbalance of excitatory/inhibitory neurotransmitters and lower levels of dopamine. DISCUSSION This study pioneered (G × E ) interaction in iPSC-derived organoids. The experimental strategy enables biomonitoring and environmental risk assessment for ASD. Our findings reflected some metabolic perturbations and disruption of neurotransmitter systems involved in ASD. The increased susceptibility of CHD 8 + / - BrainSpheres to chemical insult establishes a possibly broader role of (G × E ) interaction in ASD. https://doi.org/10.1289/EHP8580.
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Affiliation(s)
- Sergio Modafferi
- Center for Alternatives to Animal Testing, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, Catania, Italy
| | - Xiali Zhong
- Center for Alternatives to Animal Testing, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Andre Kleensang
- Center for Alternatives to Animal Testing, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Yohei Murata
- Center for Alternatives to Animal Testing, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- Research Center, Nihon Nohyaku Co. Ltd., Osaka, Japan
| | - Francesca Fagiani
- Center for Alternatives to Animal Testing, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- Department of Drug Sciences, Pharmacology Section, University of Pavia, Pavia, Italy
- Istituto Universitario di Studi Superiori (Scuola Universitaria Superiore IUSS) Pavia, Pavia, Italy
| | - David Pamies
- Center for Alternatives to Animal Testing, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- Department of Biomedical Science, University of Lausanne, Lausanne, Switzerland
| | - Helena T. Hogberg
- Center for Alternatives to Animal Testing, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Vittorio Calabrese
- Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, Catania, Italy
| | - Herbert Lachman
- Department of Psychiatry and Behavioral Sciences, Albert Einstein College of Medicine, Bronx, New York, USA
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Thomas Hartung
- Center for Alternatives to Animal Testing, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- University of Konstanz, Konstanz, Germany
| | - Lena Smirnova
- Center for Alternatives to Animal Testing, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
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10
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Milos F, Tullii G, Gobbo F, Lodola F, Galeotti F, Verpelli C, Mayer D, Maybeck V, Offenhäusser A, Antognazza MR. High Aspect Ratio and Light-Sensitive Micropillars Based on a Semiconducting Polymer Optically Regulate Neuronal Growth. ACS APPLIED MATERIALS & INTERFACES 2021; 13:23438-23451. [PMID: 33983012 PMCID: PMC8161421 DOI: 10.1021/acsami.1c03537] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Many nano- and microstructured devices capable of promoting neuronal growth and network formation have been previously investigated. In certain cases, topographical cues have been successfully complemented with external bias, by employing electrically conducting scaffolds. However, the use of optical stimulation with topographical cues was rarely addressed in this context, and the development of light-addressable platforms for modulating and guiding cellular growth and proliferation remains almost completely unexplored. Here, we develop high aspect ratio micropillars based on a prototype semiconducting polymer, regioregular poly(3-hexylthiophene-2,5-diyl) (P3HT), as an optically active, three-dimensional platform for embryonic cortical neurons. P3HT micropillars provide a mechanically compliant environment and allow a close contact with neuronal cells. The combined action of nano/microtopography and visible light excitation leads to effective optical modulation of neuronal growth and orientation. Embryonic neurons cultured on polymer pillars show a clear polarization effect and, upon exposure to optical excitation, a significant increase in both neurite and axon length. The biocompatible, microstructured, and light-sensitive platform developed here opens up the opportunity to optically regulate neuronal growth in a wireless, repeatable, and spatio-temporally controlled manner without genetic modification. This approach may be extended to other cell models, thus uncovering interesting applications of photonic devices in regenerative medicine.
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Affiliation(s)
- Frano Milos
- Institute
of Biological Information Processing IBI-3, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
- RWTH
University Aachen, 52062 Aachen, Germany
| | - Gabriele Tullii
- Center
for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, 20133 Milano, Italy
| | - Federico Gobbo
- Center
for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, 20133 Milano, Italy
- Physics
Department, Politecnico di Milano, Piazza L. Da Vinci 32, 20133 Milano, Italy
| | - Francesco Lodola
- Center
for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, 20133 Milano, Italy
| | - Francesco Galeotti
- Istituto
di Scienze e Tecnologie Chimiche G. Natta (SCITEC), Consiglio Nazionale delle Ricerche, 20133 Milano, Italy
| | - Chiara Verpelli
- Istituto
di Neuroscienze, Consiglio Nazionale delle
Ricerche, 20133 Milano, Italy
| | - Dirk Mayer
- Institute
of Biological Information Processing IBI-3, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Vanessa Maybeck
- Institute
of Biological Information Processing IBI-3, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Andreas Offenhäusser
- Institute
of Biological Information Processing IBI-3, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
- RWTH
University Aachen, 52062 Aachen, Germany
| | - Maria Rosa Antognazza
- Center
for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, 20133 Milano, Italy
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11
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Nanotechnology Facilitated Cultured Neuronal Network and Its Applications. Int J Mol Sci 2021; 22:ijms22115552. [PMID: 34074027 PMCID: PMC8197344 DOI: 10.3390/ijms22115552] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/20/2021] [Accepted: 05/20/2021] [Indexed: 12/16/2022] Open
Abstract
The development of a biomimetic neuronal network from neural cells is a big challenge for researchers. Recent advances in nanotechnology, on the other hand, have enabled unprecedented tools and techniques for guiding and directing neural stem cell proliferation and differentiation in vitro to construct an in vivo-like neuronal network. Nanotechnology allows control over neural stem cells by means of scaffolds that guide neurons to reform synaptic networks in suitable directions in 3D architecture, surface modification/nanopatterning to decide cell fate and stimulate/record signals from neurons to find out the relationships between neuronal circuit connectivity and their pathophysiological functions. Overall, nanotechnology-mediated methods facilitate precise physiochemical controls essential to develop tools appropriate for applications in neuroscience. This review emphasizes the newest applications of nanotechnology for examining central nervous system (CNS) roles and, therefore, provides an insight into how these technologies can be tested in vitro before being used in preclinical and clinical research and their potential role in regenerative medicine and tissue engineering.
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12
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Milos F, Belu A, Mayer D, Maybeck V, Offenhäusser A. Polymer Nanopillars Induce Increased Paxillin Adhesion Assembly and Promote Axon Growth in Primary Cortical Neurons. Adv Biol (Weinh) 2021. [DOI: 10.1002/adbi.202000248] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Frano Milos
- Institute of Biological Information Processing IBI‐3 Forschungszentrum Jülich GmbH Jülich 52425 Germany
- RWTH Aachen Aachen Germany
| | - Andreea Belu
- Department of Anesthesiology and Intensive Care Medicine University Hospital of Cologne Cologne 50931 Germany
| | - Dirk Mayer
- Institute of Biological Information Processing IBI‐3 Forschungszentrum Jülich GmbH Jülich 52425 Germany
| | - Vanessa Maybeck
- Institute of Biological Information Processing IBI‐3 Forschungszentrum Jülich GmbH Jülich 52425 Germany
| | - Andreas Offenhäusser
- Institute of Biological Information Processing IBI‐3 Forschungszentrum Jülich GmbH Jülich 52425 Germany
- RWTH Aachen Aachen Germany
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13
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Fendler C, Harberts J, Rafeldt L, Loers G, Zierold R, Blick RH. Neurite guidance and neuro-caging on steps and grooves in 2.5 dimensions. NANOSCALE ADVANCES 2020; 2:5192-5200. [PMID: 36132017 PMCID: PMC9417336 DOI: 10.1039/d0na00549e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 07/14/2020] [Indexed: 05/06/2023]
Abstract
Directed guidance of neurites is a pre-requisite for tailor-made designs of interfaces between cells and semiconducting components. Grayscale lithography, reactive ion etching, and ultraviolet nanoimprint lithography are potent semiconductor industry-compatible techniques for a cost- and time-effective fabrication of modulated surfaces. In this work, neurite outgrowth of murine cerebellar neurons on 2.5D pathways produced with these methods is studied. Structures of micron-sized steps and grooves serve as cell culture platforms. The effects of contact guidance through topography and chemical guidance through selective poly-d-lysine coating on these platforms are analyzed. As a consequence, the herein presented fabrication approach can be utilized to cultivate and to study low-density neuronal networks in 2.5D configuration with a high degree of order.
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Affiliation(s)
- Cornelius Fendler
- Center for Hybrid Nanostructures (CHyN), Universität Hamburg 22761 Hamburg Germany
| | - Jann Harberts
- Center for Hybrid Nanostructures (CHyN), Universität Hamburg 22761 Hamburg Germany
| | - Lars Rafeldt
- Center for Hybrid Nanostructures (CHyN), Universität Hamburg 22761 Hamburg Germany
| | - Gabriele Loers
- Center for Molecular Neurobiology Hamburg (ZMNH), University Medical Center Hamburg-Eppendorf (UKE) Hamburg 20251 Germany
| | - Robert Zierold
- Center for Hybrid Nanostructures (CHyN), Universität Hamburg 22761 Hamburg Germany
| | - Robert H Blick
- Center for Hybrid Nanostructures (CHyN), Universität Hamburg 22761 Hamburg Germany
- Material Science and Engineering, College of Engineering, University of Wisconsin-Madison Madison Wisconsin 53706 USA
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14
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Bastiaens A, Sabahi-Kaviani R, Luttge R. Nanogrooves for 2D and 3D Microenvironments of SH-SY5Y Cultures in Brain-on-Chip Technology. Front Neurosci 2020; 14:666. [PMID: 32670014 PMCID: PMC7326937 DOI: 10.3389/fnins.2020.00666] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 05/29/2020] [Indexed: 02/02/2023] Open
Abstract
Brain-on-chip (BOC) technology such as nanogrooves and microtunnel structures can advance in vitro neuronal models by providing a platform with better means to maintain, manipulate and analyze neuronal cell cultures. Specifically, nanogrooves have been shown to influence neuronal differentiation, notably the neurite length and neurite direction. Here, we have drawn new results from our experiments using both 2D and 3D neuronal cell culture implementing both flat and nanogrooved substrates. These are used to show a comparison between the number of cells and neurite length as a first indicator for valuable insights into baseline values and expectations that can be generated from these experiments toward design optimization and predictive value of the technology in our BOC toolbox. Also, as a new step toward neuronal cell models with multiple compartmentalized neuronal cell type regions, we fabricated microtunnel devices bonded to both flat and nanogrooved substrates to assess their compatibility with neuronal cell culture. Our results show that with the current experimental protocols using SH-SY5Y cells, we can expect 200 – 400 cells with a total neurite length of approximately 4,000–5,000 μm per 1 mm2 within our BOC devices, with a lower total neurite length for 3D neuronal cell cultures on flat substrates only. There is a statistically significant difference in total neurite length between 2D cell culture on nanogrooved substrates versus 3D cell culture on flat substrates. As extension of our current BOC toolbox for which these indicative parameters would be used, the microtunnel devices show that culture of SH-SY5Y was feasible, though a limited number of neurites extended into microtunnels away from the cell bodies, regardless of using nanogrooved or flat substrates. This shows that the novel combination of microtunnel devices with nanogrooves can be implemented toward neuronal cell cultures, with future improvements to be performed to ensure neurites extend beyond the confines of the wells between the microtunnels. Overall, these results will aid toward creating more robust BOC platforms with improved predictive value. In turn, this can be used to better understand the brain and brain diseases.
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Affiliation(s)
- Alex Bastiaens
- Neuro-Nanoscale Engineering Group, Mechanical Engineering and the Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, Netherlands
| | - Rahman Sabahi-Kaviani
- Neuro-Nanoscale Engineering Group, Mechanical Engineering and the Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, Netherlands
| | - Regina Luttge
- Neuro-Nanoscale Engineering Group, Mechanical Engineering and the Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, Netherlands
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15
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Limongi T, Dattola E, Botta C, Coluccio ML, Candeloro P, Cucè M, Scopacasa B, Gallo Cantafio ME, Critello CD, Pullano SA, Fiorillo AS, Tagliaferri P, Tassone P, Lamanna E, Di Fabrizio E, Perozziello G. Influence of the Fabrication Accuracy of Hot-Embossed PCL Scaffolds on Cell Growths. Front Bioeng Biotechnol 2020; 8:84. [PMID: 32117950 PMCID: PMC7033415 DOI: 10.3389/fbioe.2020.00084] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 01/29/2020] [Indexed: 12/23/2022] Open
Abstract
Polycaprolactone (PCL) is a biocompatible and biodegradable polymer widely used for the realization of 3D scaffold for tissue engineering applications. The hot embossing technique (HE) allows the obtainment of PCL scaffolds with a regular array of micro pillars on their surface. The main drawback affecting this kind of micro fabrication process is that such structural superficial details can be damaged when detaching the replica from the mold. Therefore, the present study has focused on the optimization of the HE processes through the development of an analytical model for the prediction of the demolding force as a function of temperature. This model allowed calculating the minimum demolding force to obtain regular micropillars without defects. We demonstrated that the results obtained by the analytical model agree with the experimental data. To address the importance of controlling accurately the fabricated microstructures, we seeded on the PCL scaffolds human stromal cell line (HS-5) and monocytic leukemia cell line (THP-1) to evaluate how the presence of regular or deformed pillars affect cells viability. In vitro viability results, scanning electron and fluorescence microscope imaging analysis show that the HS-5 preferentially grows on regular microstructured surfaces, while the THP-1 on irregular microstructured ones.
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Affiliation(s)
- Tania Limongi
- Department of Applied Science and Technology, Polytechnic University of Turin, Turin, Italy
| | - Elisabetta Dattola
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Cirino Botta
- Department of Experimental and Clinical Medicine, University of Magna Graecia, Catanzaro, Italy
| | - Maria Laura Coluccio
- Department of Experimental and Clinical Medicine, University of Magna Graecia, Catanzaro, Italy
| | - Patrizio Candeloro
- Department of Experimental and Clinical Medicine, University of Magna Graecia, Catanzaro, Italy
| | - Maria Cucè
- Department of Experimental and Clinical Medicine, University of Magna Graecia, Catanzaro, Italy
| | - Bernadette Scopacasa
- Department of Experimental and Clinical Medicine, University of Magna Graecia, Catanzaro, Italy
| | | | | | | | - Antonino S Fiorillo
- Department of Health Sciences, University of Magna Graecia, Catanzaro, Italy
| | - Pierosandro Tagliaferri
- Department of Experimental and Clinical Medicine, University of Magna Graecia, Catanzaro, Italy
| | - Pierfrancesco Tassone
- Department of Experimental and Clinical Medicine, University of Magna Graecia, Catanzaro, Italy
| | - Ernesto Lamanna
- Department of Health Sciences, University of Magna Graecia, Catanzaro, Italy
| | - Enzo Di Fabrizio
- Department of Applied Science and Technology, Polytechnic University of Turin, Turin, Italy.,King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Gerardo Perozziello
- Department of Experimental and Clinical Medicine, University of Magna Graecia, Catanzaro, Italy
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16
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Zhang Y, Zhang Y, Cao Q, Wang C, Yang C, Li Y, Zhou J. Novel porous oil-water separation material with super-hydrophobicity and super-oleophilicity prepared from beeswax, lignin, and cotton. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 706:135807. [PMID: 31862593 DOI: 10.1016/j.scitotenv.2019.135807] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 11/17/2019] [Accepted: 11/26/2019] [Indexed: 06/10/2023]
Abstract
The traditional fluorinated porous material with super-hydrophobicity and super-oleophilicity is an effective strategy for oil-water separation. However, in recent years, fluorinated materials have been classified as "Emerging Environmental Pollutants" by U. S. Environmental Protection Agency because of difficult degradation and bio-accumulation. It is unacceptable to introduce new pollutants while solving environmental disasters. Therefore, it is great requirement to explore a low-cost, environmentally friendly, and renewable technique for the fabrication of novel porous materials with super-hydrophobicity and super-oleophilicity to separate oil-water mixtures. In this work, renewable beeswax, lignin, and cotton have been chosen to prepare the biomass-based porous materials with super-hydrophobicity and super-oleophilicity for oil-water separation. The mixture of beeswax and lignin is modified on the surface of cotton to obtain the biomass-based porous materials with super-hydrophobicity and super-oleophilicity. The beeswax and lignin provide low surface energy and micro/nanoscale structures, respectively. The introduction of lignin effectively improves the thermal stability of the porous materials. The apparent contact angle still remains to be above 150° after a long-time heating. The porous materials effectively separate oil-water mixtures and have good absorption effect for heavy oil (density greater than water). Moreover, the porous materials are easily recyclable after reactivation. This strategy of preparing oil-water separation materials from renewable natural polymers not only helps to clean the environment, but also helps to recover valuable oil.
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Affiliation(s)
- Yuqing Zhang
- Liaoning Province Key Laboratory of Pulp and Papermaking Engineering, Dalian Polytechnic University, Qinggongyuan NO.1, Ganjingzi District, Dalian, Liaoning Province l16034, China
| | - Yiwen Zhang
- Liaoning Province Key Laboratory of Pulp and Papermaking Engineering, Dalian Polytechnic University, Qinggongyuan NO.1, Ganjingzi District, Dalian, Liaoning Province l16034, China
| | - Qiping Cao
- Liaoning Province Key Laboratory of Pulp and Papermaking Engineering, Dalian Polytechnic University, Qinggongyuan NO.1, Ganjingzi District, Dalian, Liaoning Province l16034, China
| | - Chunyu Wang
- Liaoning Province Key Laboratory of Pulp and Papermaking Engineering, Dalian Polytechnic University, Qinggongyuan NO.1, Ganjingzi District, Dalian, Liaoning Province l16034, China
| | - Chao Yang
- Liaoning Province Key Laboratory of Pulp and Papermaking Engineering, Dalian Polytechnic University, Qinggongyuan NO.1, Ganjingzi District, Dalian, Liaoning Province l16034, China
| | - Yao Li
- Liaoning Province Key Laboratory of Pulp and Papermaking Engineering, Dalian Polytechnic University, Qinggongyuan NO.1, Ganjingzi District, Dalian, Liaoning Province l16034, China.
| | - Jinghui Zhou
- Liaoning Province Key Laboratory of Pulp and Papermaking Engineering, Dalian Polytechnic University, Qinggongyuan NO.1, Ganjingzi District, Dalian, Liaoning Province l16034, China
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17
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Abstract
AbstractPrimary brain cells cultured on flat surfaces, i.e., in a two-dimensional fashion, have a long history of use as an experimental model system in neuroscience research. However, it is questionable to which extent these cultured brain cells resemble their in vivo counterparts. Mainly, it has been claimed that the non-oxidative glucose metabolism reflected by lactate production is unphysiologically high. Furthermore, it is known that culturing in 2D alters the phenotype of cells. Here we present diphenylalanine peptide nanowires (PNWs) as a culturing substrate for primary neocortical neurons from mice. The topology of the PNWs leads to neuronal cultures developing in 2.5D environment and hence improved culturing conditions. We investigate the effect of different concentrations of PNWs and different cell densities of neurons on the culturing conditions. The neocortical neurons were examined through scanning electron microscopy in order to study the effect of PNW concentrations and neuron densities on the structural appearance of the cells. Then employing the optimal combination of neuron density and PNW concentration, the neurons were evaluated functionally and metabolically by comparison with neocortical neurons standard culturing methods in 2D. Specifically, we tested neuronal viability, capacity for vesicular release of neurotransmitter GABA, as well as oxidative and non-oxidative glucose metabolism. It was evident that neurons cultured on PNWs exhibited increased viability combined with an increased capacity for neurotransmitter release and a lower fraction of non-oxidative metabolism than neurons cultured in 2D. Hence, neocortical neurons cultured in 2.5D on PNWs appear to be healthier and less glycolytic than neurons cultured in 2D.
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18
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Cutarelli A, Ghio S, Zasso J, Speccher A, Scarduelli G, Roccuzzo M, Crivellari M, Maria Pugno N, Casarosa S, Boscardin M, Conti L. Vertically-Aligned Functionalized Silicon Micropillars for 3D Culture of Human Pluripotent Stem Cell-Derived Cortical Progenitors. Cells 2019; 9:E88. [PMID: 31905823 PMCID: PMC7017050 DOI: 10.3390/cells9010088] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 12/18/2019] [Accepted: 12/23/2019] [Indexed: 02/06/2023] Open
Abstract
Silicon is a promising material for tissue engineering since it allows to produce micropatterned scaffolding structures resembling biological tissues. Using specific fabrication methods, it is possible to build aligned 3D network-like structures. In the present study, we exploited vertically-aligned silicon micropillar arrays as culture systems for human iPSC-derived cortical progenitors. In particular, our aim was to mimic the radially-oriented cortical radial glia fibres that during embryonic development play key roles in controlling the expansion, radial migration and differentiation of cortical progenitors, which are, in turn, pivotal to the establishment of the correct multilayered cerebral cortex structure. Here we show that silicon vertical micropillar arrays efficiently promote expansion and stemness preservation of human cortical progenitors when compared to standard monolayer growth conditions. Furthermore, the vertically-oriented micropillars allow the radial migration distinctive of cortical progenitors in vivo. These results indicate that vertical silicon micropillar arrays can offer an optimal system for human cortical progenitors' growth and migration. Furthermore, similar structures present an attractive platform for cortical tissue engineering.
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Affiliation(s)
- Alessandro Cutarelli
- Laboratory of Stem Cell Biology, Department of Cellular, Computational and Integrative Biology-CIBIO, University of Trento, 38123 Trento, Italy; (A.C.); (J.Z.)
| | - Simone Ghio
- Fondazione Bruno Kessler-Center for Material and Microsystem, 38123 Trento, Italy; (S.G.); (M.C.)
| | - Jacopo Zasso
- Laboratory of Stem Cell Biology, Department of Cellular, Computational and Integrative Biology-CIBIO, University of Trento, 38123 Trento, Italy; (A.C.); (J.Z.)
| | - Alessandra Speccher
- Laboratory of Neural Development and Regeneration, Department of Cellular, Computational and Integrative Biology-CIBIO, University of Trento, 38123 Trento, Italy; (A.S.); (S.C.)
| | - Giorgina Scarduelli
- Advanced Imaging Facility, Department of Cellular, Computational and Integrative Biology-CIBIO, University of Trento, 38123 Trento, Italy; (G.S.); (M.R.)
| | - Michela Roccuzzo
- Advanced Imaging Facility, Department of Cellular, Computational and Integrative Biology-CIBIO, University of Trento, 38123 Trento, Italy; (G.S.); (M.R.)
| | - Michele Crivellari
- Fondazione Bruno Kessler-Center for Material and Microsystem, 38123 Trento, Italy; (S.G.); (M.C.)
| | - Nicola Maria Pugno
- Laboratory of Bio-Inspired and Graphene Nanomechanics, Department of Civil, Environmental and Mechanical Engineering, University of Trento, 38123 Trento, Italy;
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK
- Ket-Lab, Edoardo Amaldi Foundation, via del Politecnico snc, I-00133 Roma, Italy
| | - Simona Casarosa
- Laboratory of Neural Development and Regeneration, Department of Cellular, Computational and Integrative Biology-CIBIO, University of Trento, 38123 Trento, Italy; (A.S.); (S.C.)
| | - Maurizio Boscardin
- Fondazione Bruno Kessler-Center for Material and Microsystem, 38123 Trento, Italy; (S.G.); (M.C.)
| | - Luciano Conti
- Laboratory of Stem Cell Biology, Department of Cellular, Computational and Integrative Biology-CIBIO, University of Trento, 38123 Trento, Italy; (A.C.); (J.Z.)
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19
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Tullii G, Giona F, Lodola F, Bonfadini S, Bossio C, Varo S, Desii A, Criante L, Sala C, Pasini M, Verpelli C, Galeotti F, Antognazza MR. High-Aspect-Ratio Semiconducting Polymer Pillars for 3D Cell Cultures. ACS APPLIED MATERIALS & INTERFACES 2019; 11:28125-28137. [PMID: 31356041 PMCID: PMC6943816 DOI: 10.1021/acsami.9b08822] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 07/16/2019] [Indexed: 05/20/2023]
Abstract
Hybrid interfaces between living cells and nano/microstructured scaffolds have huge application potential in biotechnology, spanning from regenerative medicine and stem cell therapies to localized drug delivery and from biosensing and tissue engineering to neural computing. However, 3D architectures based on semiconducting polymers, endowed with responsivity to visible light, have never been considered. Here, we apply for the first time a push-coating technique to realize high aspect ratio polymeric pillars, based on polythiophene, showing optimal biocompatibility and allowing for the realization of soft, 3D cell cultures of both primary neurons and cell line models. HEK-293 cells cultured on top of polymer pillars display a remarkable change in the cell morphology and a sizable enhancement of the membrane capacitance due to the cell membrane thinning in correspondence to the pillars' top surface, without negatively affecting cell proliferation. Electrophysiology properties and synapse number of primary neurons are also very well preserved. In perspective, high aspect ratio semiconducting polymer pillars may find interesting applications as soft, photoactive elements for cell activity sensing and modulation.
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Affiliation(s)
- Gabriele Tullii
- Center
for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, via Pascoli 70/3, 20133 Milano, Italy
- Department
of Physics, Politecnico di Milano, Piazza L. Da Vinci 32, 20133 Milano, Italy
| | | | - Francesco Lodola
- Center
for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, via Pascoli 70/3, 20133 Milano, Italy
| | - Silvio Bonfadini
- Center
for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, via Pascoli 70/3, 20133 Milano, Italy
- Department
of Physics, Politecnico di Milano, Piazza L. Da Vinci 32, 20133 Milano, Italy
| | - Caterina Bossio
- Center
for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, via Pascoli 70/3, 20133 Milano, Italy
| | - Simone Varo
- Center
for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, via Pascoli 70/3, 20133 Milano, Italy
| | - Andrea Desii
- Center
for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, via Pascoli 70/3, 20133 Milano, Italy
| | - Luigino Criante
- Center
for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, via Pascoli 70/3, 20133 Milano, Italy
| | - Carlo Sala
- CNR Neuroscience
Institute, Milan 20129, Italy
| | - Mariacecilia Pasini
- Istituto
per lo Studio delle Macromolecole, Consiglio
Nazionale delle Ricerche (ISMAC-CNR), Via Bassini 15, 20133 Milano, Italy
| | | | - Francesco Galeotti
- Istituto
per lo Studio delle Macromolecole, Consiglio
Nazionale delle Ricerche (ISMAC-CNR), Via Bassini 15, 20133 Milano, Italy
| | - Maria Rosa Antognazza
- Center
for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, via Pascoli 70/3, 20133 Milano, Italy
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20
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Accardo A, Cirillo C, Lionnet S, Vieu C, Loubinoux I. Interfacing cells with microengineered scaffolds for neural tissue reconstruction. Brain Res Bull 2019; 152:202-211. [PMID: 31348979 DOI: 10.1016/j.brainresbull.2019.07.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 07/15/2019] [Accepted: 07/16/2019] [Indexed: 12/20/2022]
Abstract
The development of cellular microenvironments suitable for neural tissue engineering purposes involves a plethora of research fields ranging from cell biology to biochemistry, neurosciences, physics, nanotechnology, mechanobiology. In the last two decades, this multi-disciplinary activity has led to the emergence of numerous strategies to create architectures capable of reproducing the topological, biochemical and mechanical properties of the extracellular matrix present in the central (CNS) and peripheral nervous system (PNS). Some of these approaches have succeeded in inducing the functional recovery of damaged areas in the CNS and the PNS to address the current lack of effective medical treatments for this type of injury. In this review, we analyze recent developments in the realization of two-dimensional and three-dimensional neuronal scaffolds following either top-down or bottom-up approaches. After providing an overview of the different fabrication techniques employed for tailoring the biomaterials, we draw on specific examples to describe the major features of the developed approaches. We then conclude with prospective proof of concept studies on guiding scaffolds and regenerative models on macro-scale brain implants targeting neural regeneration.
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Affiliation(s)
- Angelo Accardo
- LAAS-CNRS, Université de Toulouse, CNRS, F-31400, Toulouse, France
| | - Carla Cirillo
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, 31024, UPS, France
| | - Sarah Lionnet
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, 31024, UPS, France
| | - Christophe Vieu
- LAAS-CNRS, Université de Toulouse, CNRS, F-31400, Toulouse, France; Université de Toulouse, Institut National des Sciences Appliquées - INSA, F-31400, Toulouse, France
| | - Isabelle Loubinoux
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, 31024, UPS, France.
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21
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Bramini M, Chiacchiaretta M, Armirotti A, Rocchi A, Kale DD, Martin C, Vázquez E, Bandiera T, Ferroni S, Cesca F, Benfenati F. An Increase in Membrane Cholesterol by Graphene Oxide Disrupts Calcium Homeostasis in Primary Astrocytes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1900147. [PMID: 30891923 DOI: 10.1002/smll.201900147] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 02/18/2019] [Indexed: 05/24/2023]
Abstract
The use of graphene nanomaterials (GNMs) for biomedical applications targeted to the central nervous system is exponentially increasing, although precise information on their effects on brain cells is lacking. In this work, the molecular changes induced in cortical astrocytes by few-layer graphene (FLG) and graphene oxide (GO) flakes are addressed. The results show that exposure to FLG/GO does not affect cell viability or proliferation. However, proteomic and lipidomic analyses unveil alterations in several cellular processes, including intracellular Ca2+ ([Ca2+ ]i ) homeostasis and cholesterol metabolism, which are particularly intense in cells exposed to GO. Indeed, GO exposure impairs spontaneous and evoked astrocyte [Ca2+ ]i signals and induces a marked increase in membrane cholesterol levels. Importantly, cholesterol depletion fully rescues [Ca2+ ]i dynamics in GO-treated cells, indicating a causal relationship between these GO-mediated effects. The results indicate that exposure to GNMs alters intracellular signaling in astrocytes and may impact astrocyte-neuron interactions.
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Affiliation(s)
- Mattia Bramini
- Center for Synaptic Neuroscience and Technology and Graphene Labs, Istituto Italiano di Tecnologia, 16132, Genova, Italy
- IRCCS Ospedale Policlinico San Martino, 16132, Genova, Italy
| | - Martina Chiacchiaretta
- Center for Synaptic Neuroscience and Technology and Graphene Labs, Istituto Italiano di Tecnologia, 16132, Genova, Italy
| | - Andrea Armirotti
- Analytical Chemistry Lab and Graphene Labs, Istituto Italiano di Tecnologia, 16163, Genova, Italy
| | - Anna Rocchi
- Center for Synaptic Neuroscience and Technology and Graphene Labs, Istituto Italiano di Tecnologia, 16132, Genova, Italy
- IRCCS Ospedale Policlinico San Martino, 16132, Genova, Italy
| | - Deepali D Kale
- PharmaChemistry Line and Graphene Labs, Istituto Italiano di Tecnologia, 16163, Genova, Italy
| | - Cristina Martin
- Departamento de Química Orgánica, Instituto Regional de Investigación Científica Aplicada (IRICA), Universidad de Castilla La-Mancha, 13071, Ciudad Real, Spain
| | - Ester Vázquez
- Departamento de Química Orgánica, Instituto Regional de Investigación Científica Aplicada (IRICA), Universidad de Castilla La-Mancha, 13071, Ciudad Real, Spain
| | - Tiziano Bandiera
- PharmaChemistry Line and Graphene Labs, Istituto Italiano di Tecnologia, 16163, Genova, Italy
| | - Stefano Ferroni
- Department of Pharmacy and Biotechnology, University of Bologna, 40126, Bologna, Italy
| | - Fabrizia Cesca
- Center for Synaptic Neuroscience and Technology and Graphene Labs, Istituto Italiano di Tecnologia, 16132, Genova, Italy
- Department of Life Sciences, University of Trieste, 34127, Trieste, Italy
| | - Fabio Benfenati
- Center for Synaptic Neuroscience and Technology and Graphene Labs, Istituto Italiano di Tecnologia, 16132, Genova, Italy
- IRCCS Ospedale Policlinico San Martino, 16132, Genova, Italy
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22
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Onesto V, Villani M, Narducci R, Malara N, Imbrogno A, Allione M, Costa N, Coppedè N, Zappettini A, Cannistraci CV, Cancedda L, Amato F, Di Fabrizio E, Gentile F. Cortical-like mini-columns of neuronal cells on zinc oxide nanowire surfaces. Sci Rep 2019; 9:4021. [PMID: 30858456 PMCID: PMC6411964 DOI: 10.1038/s41598-019-40548-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 02/18/2019] [Indexed: 11/25/2022] Open
Abstract
A long-standing goal of neuroscience is a theory that explains the formation of the minicolumns in the cerebral cortex. Minicolumns are the elementary computational units of the mature neocortex. Here, we use zinc oxide nanowires with controlled topography as substrates for neural-cell growth. We observe that neuronal cells form networks where the networks characteristics exhibit a high sensitivity to the topography of the nanowires. For certain values of nanowires density and fractal dimension, neuronal networks express small world attributes, with enhanced information flows. We observe that neurons in these networks congregate in superclusters of approximately 200 neurons. We demonstrate that this number is not coincidental: the maximum number of cells in a supercluster is limited by the competition between the binding energy between cells, adhesion to the substrate, and the kinetic energy of the system. Since cortical minicolumns have similar size, similar anatomical and topological characteristics of neuronal superclusters on nanowires surfaces, we conjecture that the formation of cortical minicolumns is likewise guided by the interplay between energy minimization, information optimization and topology. For the first time, we provide a clear account of the mechanisms of formation of the minicolumns in the brain.
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Affiliation(s)
- V Onesto
- Center for Advanced Biomaterials for HealthCare, Istituto Italiano di Tecnologia, 80125, Naples, Italy.,Department of Experimental and Clinical Medicine, University of Magna Graecia, 88100, Catanzaro, Italy
| | - M Villani
- IMEM-CNR Parco Area delle Scienze 37/A, 43124, Parma, Italy
| | - R Narducci
- Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - N Malara
- Department of Experimental and Clinical Medicine, University of Magna Graecia, 88100, Catanzaro, Italy
| | - A Imbrogno
- Tyndall National Institute, Cork, T12 R5CP, Ireland
| | - M Allione
- PSE division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - N Costa
- Health Department, University of Magna Graecia, 88100, Catanzaro, Italy
| | - N Coppedè
- IMEM-CNR Parco Area delle Scienze 37/A, 43124, Parma, Italy
| | - A Zappettini
- IMEM-CNR Parco Area delle Scienze 37/A, 43124, Parma, Italy
| | - C V Cannistraci
- Biomedical Cybernetics Group, Biotechnology Center (BIOTEC), Center for Molecular and Cellular Bioengineering (CMCB), Center for Systems Biology Dresden (CSBD), Department of Physics, Technische Universität Dresden, Tatzberg 47/49, 01307, Dresden, Germany.,Brain Bio-Inspired Computing (BBC) Lab, IRCCS Centro Neurolesi "Bonino Pulejo", Messina, 98124, Italy
| | - L Cancedda
- Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy.,Dulbecco Telethon Institute, Rome, Italy
| | - F Amato
- Department of Electrical Engineering and Information Technology, University Federico II, Naples, Italy
| | - Enzo Di Fabrizio
- PSE division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - F Gentile
- Department of Electrical Engineering and Information Technology, University Federico II, Naples, Italy.
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23
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Fendler C, Denker C, Harberts J, Bayat P, Zierold R, Loers G, Münzenberg M, Blick RH. Microscaffolds by Direct Laser Writing for Neurite Guidance Leading to Tailor‐Made Neuronal Networks. ACTA ACUST UNITED AC 2019; 3:e1800329. [DOI: 10.1002/adbi.201800329] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/13/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Cornelius Fendler
- Center for Hybrid Nanostructures (CHyN)Universität Hamburg Luruper Chaussee 149 Hamburg 22761 Germany
| | - Christian Denker
- Institute of PhysicsUniversity of Greifswald Felix‐Hausdorff‐Str. 6 Greifswald 17489 Germany
| | - Jann Harberts
- Center for Hybrid Nanostructures (CHyN)Universität Hamburg Luruper Chaussee 149 Hamburg 22761 Germany
| | - Parisa Bayat
- Center for Hybrid Nanostructures (CHyN)Universität Hamburg Luruper Chaussee 149 Hamburg 22761 Germany
| | - Robert Zierold
- Center for Hybrid Nanostructures (CHyN)Universität Hamburg Luruper Chaussee 149 Hamburg 22761 Germany
| | - Gabriele Loers
- Center for Molecular Neurobiology Hamburg (ZMNH)University Medical Center Hamburg‐Eppendorf (UKE) Falkenried 94 Hamburg 20251 Germany
| | - Markus Münzenberg
- Institute of PhysicsUniversity of Greifswald Felix‐Hausdorff‐Str. 6 Greifswald 17489 Germany
| | - Robert H. Blick
- Center for Hybrid Nanostructures (CHyN)Universität Hamburg Luruper Chaussee 149 Hamburg 22761 Germany
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24
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25
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Dattola E, Parrotta EI, Scalise S, Perozziello G, Limongi T, Candeloro P, Coluccio ML, Maletta C, Bruno L, De Angelis MT, Santamaria G, Mollace V, Lamanna E, Di Fabrizio E, Cuda G. Development of 3D PVA scaffolds for cardiac tissue engineering and cell screening applications. RSC Adv 2019; 9:4246-4257. [PMID: 35520194 PMCID: PMC9060459 DOI: 10.1039/c8ra08187e] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 01/05/2019] [Indexed: 12/21/2022] Open
Abstract
The aim of this study was the design of a 3D scaffold composed of poly(vinyl) alcohol (PVA) for cardiac tissue engineering (CTE) applications. The PVA scaffold was fabricated using a combination of gas foaming and freeze-drying processes that did not need any cross-linking agents. We obtained a biocompatible porous matrix with excellent mechanical properties. We measured the stress–strain curves of the PVA scaffolds and we showed that the elastic behavior is similar to that of the extracellular matrix of muscles. The SEM observations revealed that the scaffolds possess micro pores having diameters ranging from 10 μm to 370 μm that fit to the dimensions of the cells. A further purpose of this study was to test scaffolds ability to support human induced pluripotent stem cells growth and differentiation into cardiomyocytes. As the proliferation tests show, the number of live stem cells on the scaffold after 12 days was increased with respect to the initial number of cells, revealing the cytocompatibility of the substrate. In addition, the differentiated cells on the PVA scaffolds expressed anti-troponin T, a marker specific of the cardiac sarcomere. We demonstrated the ability of the cardiomyocytes to pulse within the scaffolds. In conclusion, the developed scaffold show the potential to be used as a biomaterial for CTE applications. The aim of this study was the design of a 3D scaffold composed of poly(vinyl) alcohol (PVA) for cardiac tissue engineering (CTE) applications.![]()
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26
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Superhydrophobic lab-on-chip measures secretome protonation state and provides a personalized risk assessment of sporadic tumour. NPJ Precis Oncol 2018; 2:26. [PMID: 30480095 PMCID: PMC6242957 DOI: 10.1038/s41698-018-0069-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 10/19/2018] [Indexed: 12/18/2022] Open
Abstract
Secretome of primary cultures is an accessible source of biological markers compared to more complex and less decipherable mixtures such as serum or plasma. The protonation state (PS) of secretome reflects the metabolism of cells and can be used for cancer early detection. Here, we demonstrate a superhydrophobic organic electrochemical device that measures PS in a drop of secretome derived from liquid biopsies. Using data from the sensor and principal component analysis (PCA), we developed algorithms able to efficiently discriminate tumour patients from non-tumour patients. We then validated the results using mass spectrometry and biochemical analysis of samples. For the 36 patients across three independent cohorts, the method identified tumour patients with high sensitivity and identification as high as 100% (no false positives) with declared subjects at-risk, for sporadic cancer onset, by intermediate values of PS. This assay could impact on cancer risk management, individual’s diagnosis and/or help clarify risk in healthy populations. A blood test that measures whether molecules secreted by cells contain titratable proton atoms can accurately discriminate between patients who have cancer and those who don’t. Titratable species may in turn influence the protonation state of a solution, i.e. the number of protons added to and the net charge of that solution. A team led by Natalia Malara from University Magna Graecia in Catanzaro, Italy and Enzo Di Fabrizio
from the King Abdullah University of Science and Technology in Thuwal, Saudi Arabia, Francesco Gentile from the University Federico II in Naples, Italy, and Nicola Coppedè from the Institute of Materials for Electronics and Magnetism in Parma, Italy, created an eletrochemical device that can detect faulty metabolism by quantifying the proportion of secreted proteins with and without extra protons—an indicator of abnormal cell division, proliferation and invasion. The researchers tested the device on blood samples from patients with solid tumors and healthy controls. The method identified cancer patients with a high degree of accuracy. If the findings are confirmed in larger trials, the test could help with the screening, diagnosis and management of cancer.
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27
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Schulte C, Lamanna J, Moro AS, Piazzoni C, Borghi F, Chighizola M, Ortoleva S, Racchetti G, Lenardi C, Podestà A, Malgaroli A, Milani P. Neuronal Cells Confinement by Micropatterned Cluster-Assembled Dots with Mechanotransductive Nanotopography. ACS Biomater Sci Eng 2018; 4:4062-4075. [DOI: 10.1021/acsbiomaterials.8b00916] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Carsten Schulte
- Interdisciplinary Centre for Nanostructured Materials and Interfaces (CIMaINa) and Department of Physics, Università degli Studi di Milano, Milano, Italy
| | - Jacopo Lamanna
- Center for Behavioral Neuroscience and Communication (BNC), Università Vita-Salute San Raffaele and Neurobiology of Learning Unit, Division of Neuroscience, Scientific
Institute San Raffaele, Milano, Italy
| | - Andrea Stefano Moro
- Center for Behavioral Neuroscience and Communication (BNC), Università Vita-Salute San Raffaele and Neurobiology of Learning Unit, Division of Neuroscience, Scientific
Institute San Raffaele, Milano, Italy
| | - Claudio Piazzoni
- Interdisciplinary Centre for Nanostructured Materials and Interfaces (CIMaINa) and Department of Physics, Università degli Studi di Milano, Milano, Italy
| | - Francesca Borghi
- Interdisciplinary Centre for Nanostructured Materials and Interfaces (CIMaINa) and Department of Physics, Università degli Studi di Milano, Milano, Italy
| | - Matteo Chighizola
- Interdisciplinary Centre for Nanostructured Materials and Interfaces (CIMaINa) and Department of Physics, Università degli Studi di Milano, Milano, Italy
| | - Serena Ortoleva
- Interdisciplinary Centre for Nanostructured Materials and Interfaces (CIMaINa) and Department of Physics, Università degli Studi di Milano, Milano, Italy
| | - Gabriella Racchetti
- Center for Behavioral Neuroscience and Communication (BNC), Università Vita-Salute San Raffaele and Neurobiology of Learning Unit, Division of Neuroscience, Scientific
Institute San Raffaele, Milano, Italy
| | - Cristina Lenardi
- Interdisciplinary Centre for Nanostructured Materials and Interfaces (CIMaINa) and Department of Physics, Università degli Studi di Milano, Milano, Italy
| | - Alessandro Podestà
- Interdisciplinary Centre for Nanostructured Materials and Interfaces (CIMaINa) and Department of Physics, Università degli Studi di Milano, Milano, Italy
| | - Antonio Malgaroli
- Center for Behavioral Neuroscience and Communication (BNC), Università Vita-Salute San Raffaele and Neurobiology of Learning Unit, Division of Neuroscience, Scientific
Institute San Raffaele, Milano, Italy
| | - Paolo Milani
- Interdisciplinary Centre for Nanostructured Materials and Interfaces (CIMaINa) and Department of Physics, Università degli Studi di Milano, Milano, Italy
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28
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Rima S, Lattuada M. Protein Amyloid Fibrils as Template for the Synthesis of Silica Nanofibers, and Their Use to Prepare Superhydrophobic, Lotus-Like Surfaces. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1802854. [PMID: 30350472 DOI: 10.1002/smll.201802854] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 09/28/2018] [Indexed: 06/08/2023]
Abstract
In this work, amyloid fibrils are used as a template for the preparation of long silica fibers, with a variety of aspect ratios and surface roughness. Starting with β-lactoglobulin fibrils with typical diameters of about 20 nm and a length of several micrometers, two different strategies are followed to grow silica: either in water at acidic pH values, or in ethanol-water mixtures under Stöber conditions and an excellent control of both the thickness and the roughness of the silica layer has been achieved. Silica nanofibers with a thickness ranging from a few nanometers to hundreds of nanometers are prepared. As an application, the rough silica nanotubes are used to create superhydrophobic surfaces by mimicking the structure of the lotus leaf. The papillary structure of the lotus leaf is replicated by depositing 10 μm colloidal particles in either a single colloidal crystal, or in a binary colloidal crystal made with smaller sub-micrometer particles. Then, silica nanofibers are deposited on the binary colloidal crystal surfaces through a layer-by-layer deposition procedure to replicate the nanoscale roughness provided by wax nanotubes. Upon hydrophobization of the silica nanotubes, the final surfaces are highly superhydrophobic, with a water contact angle of 165.5°.
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Affiliation(s)
- Simonetta Rima
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700, Fribourg, Switzerland
| | - Marco Lattuada
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700, Fribourg, Switzerland
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29
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McGuire AF, Santoro F, Cui B. Interfacing Cells with Vertical Nanoscale Devices: Applications and Characterization. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2018; 11:101-126. [PMID: 29570360 PMCID: PMC6530470 DOI: 10.1146/annurev-anchem-061417-125705] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Measurements of the intracellular state of mammalian cells often require probes or molecules to breach the tightly regulated cell membrane. Mammalian cells have been shown to grow well on vertical nanoscale structures in vitro, going out of their way to reach and tightly wrap the structures. A great deal of research has taken advantage of this interaction to bring probes close to the interface or deliver molecules with increased efficiency or ease. In turn, techniques have been developed to characterize this interface. Here, we endeavor to survey this research with an emphasis on the interface as driven by cellular mechanisms.
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Affiliation(s)
- Allister F McGuire
- Department of Chemistry, Stanford University, Stanford, California 94305, USA;
| | - Francesca Santoro
- Department of Chemistry, Stanford University, Stanford, California 94305, USA;
- Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia, 80125 Naples, Italy;
| | - Bianxiao Cui
- Department of Chemistry, Stanford University, Stanford, California 94305, USA;
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30
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Limongi T, Rocchi A, Cesca F, Tan H, Miele E, Giugni A, Orlando M, Perrone Donnorso M, Perozziello G, Benfenati F, Di Fabrizio E. Delivery of Brain-Derived Neurotrophic Factor by 3D Biocompatible Polymeric Scaffolds for Neural Tissue Engineering and Neuronal Regeneration. Mol Neurobiol 2018; 55:8788-8798. [PMID: 29600349 DOI: 10.1007/s12035-018-1022-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 03/16/2018] [Indexed: 01/07/2023]
Abstract
Biopolymers are increasingly employed for neuroscience applications as scaffolds to drive and promote neural regrowth, thanks to their ability to mediate the upload and subsequent release of active molecules and drugs. Synthetic degradable polymers are characterized by different responses ranging from tunable distension or shrinkage to total dissolution, depending on the function they are designed for. In this paper we present a biocompatible microfabricated poly-ε-caprolactone (PCL) scaffold for primary neuron growth and maturation that has been optimized for the in vitro controlled release of brain-derived neurotrophic factor (BDNF). We demonstrate that the designed morphology confers to these devices an enhanced drug delivery capability with respect to monolithic unstructured supports. After incubation with BDNF, micropillared PCL devices progressively release the neurotrophin over 21 days in vitro. Moreover, the bioactivity of released BDNF is confirmed using primary neuronal cultures, where it mediates a consistent activation of BDNF signaling cascades, increased synaptic density, and neuronal survival. These results provide the proof-of-principle on the fabrication process of micropatterned PCL devices, which represent a promising therapeutic option to enhance neuronal regeneration after lesion and for neural tissue engineering and prosthetics.
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Affiliation(s)
- T Limongi
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Science and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - A Rocchi
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132, Genoa, Italy
| | - F Cesca
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132, Genoa, Italy
| | - H Tan
- Analytical Core Lab, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - E Miele
- Nanostructures Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy.,Centre for BioImaging Sciences, Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore, 117543, Singapore
| | - A Giugni
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Science and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - M Orlando
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132, Genoa, Italy.,Department of Neurophysiology, NeuroCure Excellence Cluster, Charité Universitäts Medizin, Charitéplatz 1, 10117, Berlin, Germany
| | - M Perrone Donnorso
- Nanostructures Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy
| | - G Perozziello
- Laboratory of Nanotechnology BioNEM Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, Viale Europa, Catanzaro, Italy
| | - Fabio Benfenati
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132, Genoa, Italy.
| | - Enzo Di Fabrizio
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Science and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Kingdom of Saudi Arabia.
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31
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Onesto V, Cancedda L, Coluccio ML, Nanni M, Pesce M, Malara N, Cesarelli M, Di Fabrizio E, Amato F, Gentile F. Nano-topography Enhances Communication in Neural Cells Networks. Sci Rep 2017; 7:9841. [PMID: 28851984 PMCID: PMC5575309 DOI: 10.1038/s41598-017-09741-w] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 07/28/2017] [Indexed: 12/31/2022] Open
Abstract
Neural cells are the smallest building blocks of the central and peripheral nervous systems. Information in neural networks and cell-substrate interactions have been heretofore studied separately. Understanding whether surface nano-topography can direct nerve cells assembly into computational efficient networks may provide new tools and criteria for tissue engineering and regenerative medicine. In this work, we used information theory approaches and functional multi calcium imaging (fMCI) techniques to examine how information flows in neural networks cultured on surfaces with controlled topography. We found that substrate roughness S a affects networks topology. In the low nano-meter range, S a = 0-30 nm, information increases with S a . Moreover, we found that energy density of a network of cells correlates to the topology of that network. This reinforces the view that information, energy and surface nano-topography are tightly inter-connected and should not be neglected when studying cell-cell interaction in neural tissue repair and regeneration.
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Affiliation(s)
- V Onesto
- Department of Experimental and Clinical Medicine, University of Magna Graecia, 88100, Catanzaro, Italy
| | - L Cancedda
- Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - M L Coluccio
- Department of Experimental and Clinical Medicine, University of Magna Graecia, 88100, Catanzaro, Italy
| | - M Nanni
- Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - M Pesce
- Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - N Malara
- Department of Experimental and Clinical Medicine, University of Magna Graecia, 88100, Catanzaro, Italy
| | - M Cesarelli
- Department of Electrical Engineering and Information Technology, University of Naples, 80125, Naples, Italy
| | - E Di Fabrizio
- Department of Experimental and Clinical Medicine, University of Magna Graecia, 88100, Catanzaro, Italy
- King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - F Amato
- Department of Experimental and Clinical Medicine, University of Magna Graecia, 88100, Catanzaro, Italy
| | - F Gentile
- Department of Electrical Engineering and Information Technology, University of Naples, 80125, Naples, Italy.
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Turunen S, Joki T, Hiltunen ML, Ihalainen TO, Narkilahti S, Kellomäki M. Direct Laser Writing of Tubular Microtowers for 3D Culture of Human Pluripotent Stem Cell-Derived Neuronal Cells. ACS APPLIED MATERIALS & INTERFACES 2017; 9:25717-25730. [PMID: 28697300 DOI: 10.1021/acsami.7b05536] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
As the complex structure of nervous tissue cannot be mimicked in two-dimensional (2D) cultures, the development of three-dimensional (3D) neuronal cell culture platforms is a topical issue in the field of neuroscience and neural tissue engineering. Computer-assisted laser-based fabrication techniques such as direct laser writing by two-photon polymerization (2PP-DLW) offer a versatile tool to fabricate 3D cell culture platforms with highly ordered geometries in the size scale of natural 3D cell environments. In this study, we present the design and 2PP-DLW fabrication process of a novel 3D neuronal cell culture platform based on tubular microtowers. The platform facilitates efficient long-term 3D culturing of human neuronal cells and supports neurite orientation and 3D network formation. Microtower designs both with or without intraluminal guidance cues and/or openings in the tower wall are designed and successfully fabricated from Ormocomp. Three of the microtower designs are chosen for the final culture platform: a design with openings in the wall and intralumial guidance cues (webs and pillars), a design with openings but without intraluminal structures, and a plain cylinder design. The proposed culture platform offers a promising concept for future 3D cultures in the field of neuroscience.
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Affiliation(s)
- Sanna Turunen
- Biomaterials and Tissue Engineering Group, BioMediTech and Faculty of Biomedical Sciences and Engineering, Tampere University of Technology , Korkeakoulunkatu 3, 33720 Tampere, Finland
| | - Tiina Joki
- NeuroGroup, BioMediTech and Faculty of Medicine and Life Sciences, University of Tampere , Lääkärinkatu 1, 33520 Tampere, Finland
| | - Maiju L Hiltunen
- Biomaterials and Tissue Engineering Group, BioMediTech and Faculty of Biomedical Sciences and Engineering, Tampere University of Technology , Korkeakoulunkatu 3, 33720 Tampere, Finland
| | - Teemu O Ihalainen
- NeuroGroup, BioMediTech and Faculty of Medicine and Life Sciences, University of Tampere , Lääkärinkatu 1, 33520 Tampere, Finland
| | - Susanna Narkilahti
- NeuroGroup, BioMediTech and Faculty of Medicine and Life Sciences, University of Tampere , Lääkärinkatu 1, 33520 Tampere, Finland
| | - Minna Kellomäki
- Biomaterials and Tissue Engineering Group, BioMediTech and Faculty of Biomedical Sciences and Engineering, Tampere University of Technology , Korkeakoulunkatu 3, 33720 Tampere, Finland
- BioMediTech and Faculty of Medicine and Life Sciences, University of Tampere , Lääkärinkatu 1, 33520 Tampere, Finland
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33
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Patterned surfaces for biological applications: A new platform using two dimensional structures as biomaterials. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2016.09.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Marini M, Limongi T, Falqui A, Genovese A, Allione M, Moretti M, Lopatin S, Tirinato L, Das G, Torre B, Giugni A, Cesca F, Benfenati F, Di Fabrizio E. Imaging and structural studies of DNA-protein complexes and membrane ion channels. NANOSCALE 2017; 9:2768-2777. [PMID: 28155926 DOI: 10.1039/c6nr07958j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In bio-imaging by electron microscopy, damage of the sample and limited contrast are the two main hurdles for reaching high image quality. We extend a new preparation method based on nanofabrication and super-hydrophobicity to the imaging and structural studies of nucleic acids, nucleic acid-protein complexes (DNA/Rad51 repair protein complex) and neuronal ion channels (gap-junction, K+ and GABAA channels) as paradigms of biological significance and increasing complexity. The preparation method is based on the liquid phase and is compatible with physiological conditions. Only in the very last stage, samples are dried for TEM analysis. Conventional TEM and high-resolution TEM (HRTEM) were used to achieve a resolution of 3.3 and 1.5 Å, respectively. The EM dataset quality allows the determination of relevant structural and metrological information on the DNA structure, DNA-protein interactions and ion channels, allowing the identification of specific macromolecules and their structure.
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Affiliation(s)
- M Marini
- King Abdullah University of Science and Technology, SMILEs lab, PSE and BESE Divisions, Thuwal, 23955-6900, Kingdom of Saudi Arabia.
| | - T Limongi
- King Abdullah University of Science and Technology, SMILEs lab, PSE and BESE Divisions, Thuwal, 23955-6900, Kingdom of Saudi Arabia.
| | - A Falqui
- King Abdullah University of Science and Technology, NABLA lab, BESE Division, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - A Genovese
- King Abdullah University of Science and Technology, NABLA lab, BESE Division, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - M Allione
- King Abdullah University of Science and Technology, SMILEs lab, PSE and BESE Divisions, Thuwal, 23955-6900, Kingdom of Saudi Arabia.
| | - M Moretti
- King Abdullah University of Science and Technology, SMILEs lab, PSE and BESE Divisions, Thuwal, 23955-6900, Kingdom of Saudi Arabia.
| | - S Lopatin
- King Abdullah University of Science and Technology, Imaging and Characterization core lab, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - L Tirinato
- King Abdullah University of Science and Technology, SMILEs lab, PSE and BESE Divisions, Thuwal, 23955-6900, Kingdom of Saudi Arabia.
| | - G Das
- King Abdullah University of Science and Technology, SMILEs lab, PSE and BESE Divisions, Thuwal, 23955-6900, Kingdom of Saudi Arabia.
| | - B Torre
- King Abdullah University of Science and Technology, SMILEs lab, PSE and BESE Divisions, Thuwal, 23955-6900, Kingdom of Saudi Arabia.
| | - A Giugni
- King Abdullah University of Science and Technology, SMILEs lab, PSE and BESE Divisions, Thuwal, 23955-6900, Kingdom of Saudi Arabia.
| | - F Cesca
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genova, Italy
| | - F Benfenati
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genova, Italy
| | - E Di Fabrizio
- King Abdullah University of Science and Technology, SMILEs lab, PSE and BESE Divisions, Thuwal, 23955-6900, Kingdom of Saudi Arabia.
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Jeong DW, Kim GH, Kim NY, Lee Z, Jung SD, Lee JO. A high-performance transparent graphene/vertically aligned carbon nanotube (VACNT) hybrid electrode for neural interfacing. RSC Adv 2017. [DOI: 10.1039/c6ra26836f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Transparent graphene-vertically aligned carbon nanotube (VACNT) electrodes enable the dual function of optical cell monitoring and cell electrical signal measurements with exceptionally high signal amplitude.
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Affiliation(s)
- Du Won Jeong
- Advanced Materials Division
- Korea Research Institute of Chemical Technology (KRICT)
- Daejeon 34114
- Korea
| | - Gook Hwa Kim
- Synapse Device Creative Research Section
- Electronics and Telecommunications Research Institute (ETRI)
- Daejeon 34129
- Korea
| | - Na Yeon Kim
- School of Materials Science and Engineering
- Ulsan National Institute of Science and Technology (UNIST)
- Ulsan 44919
- Korea
| | - Zonghoon Lee
- School of Materials Science and Engineering
- Ulsan National Institute of Science and Technology (UNIST)
- Ulsan 44919
- Korea
| | - Sang Don Jung
- Synapse Device Creative Research Section
- Electronics and Telecommunications Research Institute (ETRI)
- Daejeon 34129
- Korea
| | - Jeong-O. Lee
- Advanced Materials Division
- Korea Research Institute of Chemical Technology (KRICT)
- Daejeon 34114
- Korea
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36
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Limongi T, Tirinato L, Pagliari F, Giugni A, Allione M, Perozziello G, Candeloro P, Di Fabrizio E. Fabrication and Applications of Micro/Nanostructured Devices for Tissue Engineering. NANO-MICRO LETTERS 2017; 9:1. [PMID: 30460298 PMCID: PMC6223775 DOI: 10.1007/s40820-016-0103-7] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 07/28/2016] [Indexed: 05/17/2023]
Abstract
Nanotechnology allows the realization of new materials and devices with basic structural unit in the range of 1-100 nm and characterized by gaining control at the atomic, molecular, and supramolecular level. Reducing the dimensions of a material into the nanoscale range usually results in the change of its physiochemical properties such as reactivity, crystallinity, and solubility. This review treats the convergence of last research news at the interface of nanostructured biomaterials and tissue engineering for emerging biomedical technologies such as scaffolding and tissue regeneration. The present review is organized into three main sections. The introduction concerns an overview of the increasing utility of nanostructured materials in the field of tissue engineering. It elucidates how nanotechnology, by working in the submicron length scale, assures the realization of a biocompatible interface that is able to reproduce the physiological cell-matrix interaction. The second, more technical section, concerns the design and fabrication of biocompatible surface characterized by micro- and submicroscale features, using microfabrication, nanolithography, and miscellaneous nanolithographic techniques. In the last part, we review the ongoing tissue engineering application of nanostructured materials and scaffolds in different fields such as neurology, cardiology, orthopedics, and skin tissue regeneration.
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Affiliation(s)
- Tania Limongi
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Sciences and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900 Kingdom of Saudi Arabia
| | - Luca Tirinato
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Sciences and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900 Kingdom of Saudi Arabia
| | - Francesca Pagliari
- Department of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology, Thuwal, 23955-6900 Kingdom of Saudi Arabia
| | - Andrea Giugni
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Sciences and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900 Kingdom of Saudi Arabia
| | - Marco Allione
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Sciences and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900 Kingdom of Saudi Arabia
| | - Gerardo Perozziello
- Laboratory of Nanotechnology BioNEM, Department of Experimental and Clinical Medicine, University “Magna Graecia” of Catanzaro, Viale Europa - Loc. Germaneto, 88100 Catanzaro, Italy
| | - Patrizio Candeloro
- Laboratory of Nanotechnology BioNEM, Department of Experimental and Clinical Medicine, University “Magna Graecia” of Catanzaro, Viale Europa - Loc. Germaneto, 88100 Catanzaro, Italy
| | - Enzo Di Fabrizio
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Sciences and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900 Kingdom of Saudi Arabia
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37
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Wang Y, Ma J, Li N, Wang L, Shen L, Sun Y, Wang Y, Zhao J, Wei W, Ren Y, Liu J. Microfluidic engineering of neural stem cell niches for fate determination. BIOMICROFLUIDICS 2017; 11:014106. [PMID: 28798841 PMCID: PMC5533482 DOI: 10.1063/1.4974902] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Accepted: 01/04/2017] [Indexed: 06/07/2023]
Abstract
Neural stem cell (NSC) transplantation has great therapeutic potential for neurodegenerative diseases and central nervous system injuries. Successful NSC replacement therapy requires precise control over the cellular behaviors. However, the regulation of NSC fate is largely unclear, which severely restricts the potential clinical applications. To develop an effective model, we designed an assembled microfluidic system to engineer NSC niches and assessed the effects of various culture conditions on NSC fate determination. Five types of NSC microenvironments, including two-dimensional (2D) cellular monolayer culture, 2D cellular monolayer culture on the extracellular matrix (ECM), dispersed cells in the ECM, three-dimensional (3D) spheroid aggregates, and 3D spheroids cultured in the ECM, were constructed within an integrated microfluidic chip simultaneously. In addition, we evaluated the influence of static and perfusion culture on NSCs. The efficiency of this approach was evaluated comprehensively by characterization of NSC viability, self-renewal, proliferation, and differentiation into neurons, astrocytes, or oligodendrocytes. Differences in the status and fate of NSCs governed by the culture modes and micro-niches were analyzed. NSCs in the microfluidic device demonstrated good viability, the 3D culture in the ECM facilitated NSC self-renewal and proliferation, and 2D culture in the static state and spheroid culture under perfusion conditions benefited NSC differentiation. Regulation of NSC self-renewal and differentiation on this microfluidic device could provide NSC-based medicinal products and references for distinct nerve disease therapy.
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Affiliation(s)
| | - Jingyun Ma
- Regenerative Medicine Center, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Na Li
- Regenerative Medicine Center, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Liang Wang
- Regenerative Medicine Center, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Liming Shen
- Regenerative Medicine Center, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yu Sun
- Regenerative Medicine Center, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yajun Wang
- College of Life Science, Liaoning Normal University, Dalian, China
| | - Jingyuan Zhao
- Regenerative Medicine Center, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Wenjuan Wei
- Regenerative Medicine Center, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yan Ren
- Department of Neurology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Jing Liu
- Regenerative Medicine Center, The First Affiliated Hospital of Dalian Medical University, Dalian, China
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38
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Hierarchical surface patterning of Ni- and Be-free Ti- and Zr-based bulk metallic glasses by thermoplastic net-shaping. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 73:398-405. [PMID: 28183624 DOI: 10.1016/j.msec.2016.12.059] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 11/22/2016] [Accepted: 12/13/2016] [Indexed: 01/17/2023]
Abstract
In order to establish a strong cell-material interaction, the surface topography of the implant material plays an important role. This contribution aims to analyze the formation kinetics of nickel and beryllium-free Ti- and Zr-based Bulk Metallic Glasses (BMGs) with potential biomedical applications. The surface patterning of the BMGs is achieved by thermoplastic net-shaping (TPN) into anisotropically etched cavities of silicon chips. The forming kinetics of the BMG alloys is assessed by thermal and mechanical measurements to determine the most suitable processing temperature and time, and load applied. Array of pyramidal micropatterns with a tip resolution down to 50nm is achievable for the Zr-BMG, where the generated hierarchical features are crucial for surface functionalization, acting as topographic cues for cell attachment. The unique processability and intrinsic properties of this new class of amorphous alloys make them competitive with the conventional biomaterials.
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39
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Messina W, Fitzgerald M, Moore E. SEM and ECIS Investigation of Cells Cultured on Nanopillar Modified Interdigitated Impedance Electrodes for Analysis of Cell Growth and Cytotoxicity of Potential Anticancer Drugs. ELECTROANAL 2016. [DOI: 10.1002/elan.201600025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Walter Messina
- Tyndall National Institute; University College Cork; Cork Republic Of Ireland
- University College Cork, Dept. Of Chemistry; Cork Republic Of Ireland
| | - Michelle Fitzgerald
- Tyndall National Institute; University College Cork; Cork Republic Of Ireland
| | - Eric Moore
- Tyndall National Institute; University College Cork; Cork Republic Of Ireland
- University College Cork, Dept. Of Chemistry; Cork Republic Of Ireland
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40
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Onesto V, Cosentino C, Di Fabrizio E, Cesarelli M, Amato F, Gentile F. Information in a Network of Neuronal Cells: Effect of Cell Density and Short-Term Depression. BIOMED RESEARCH INTERNATIONAL 2016; 2016:2769698. [PMID: 27403421 PMCID: PMC4923608 DOI: 10.1155/2016/2769698] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 05/10/2016] [Indexed: 12/13/2022]
Abstract
Neurons are specialized, electrically excitable cells which use electrical to chemical signals to transmit and elaborate information. Understanding how the cooperation of a great many of neurons in a grid may modify and perhaps improve the information quality, in contrast to few neurons in isolation, is critical for the rational design of cell-materials interfaces for applications in regenerative medicine, tissue engineering, and personalized lab-on-a-chips. In the present paper, we couple an integrate-and-fire model with information theory variables to analyse the extent of information in a network of nerve cells. We provide an estimate of the information in the network in bits as a function of cell density and short-term depression time. In the model, neurons are connected through a Delaunay triangulation of not-intersecting edges; in doing so, the number of connecting synapses per neuron is approximately constant to reproduce the early time of network development in planar neural cell cultures. In simulations where the number of nodes is varied, we observe an optimal value of cell density for which information in the grid is maximized. In simulations in which the posttransmission latency time is varied, we observe that information increases as the latency time decreases and, for specific configurations of the grid, it is largely enhanced in a resonance effect.
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Affiliation(s)
- Valentina Onesto
- Department of Experimental and Clinical Medicine, University of Magna Graecia, 88100 Catanzaro, Italy
| | - Carlo Cosentino
- Department of Experimental and Clinical Medicine, University of Magna Graecia, 88100 Catanzaro, Italy
| | - Enzo Di Fabrizio
- King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Mario Cesarelli
- Department of Electrical Engineering and Information Technology, University of Naples, 80125 Naples, Italy
| | - Francesco Amato
- Department of Experimental and Clinical Medicine, University of Magna Graecia, 88100 Catanzaro, Italy
| | - Francesco Gentile
- Department of Electrical Engineering and Information Technology, University of Naples, 80125 Naples, Italy
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41
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Lai Y, Huang J, Cui Z, Ge M, Zhang KQ, Chen Z, Chi L. Recent Advances in TiO2 -Based Nanostructured Surfaces with Controllable Wettability and Adhesion. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:2203-24. [PMID: 26695122 DOI: 10.1002/smll.201501837] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 10/14/2015] [Indexed: 05/02/2023]
Abstract
Bioinspired surfaces with special wettability and adhesion have attracted great interest in both fundamental research and industry applications. Various kinds of special wetting surfaces have been constructed by adjusting the topographical structure and chemical composition. Here, recent progress of the artificial superhydrophobic surfaces with high contrast in solid/liquid adhesion has been reviewed, with a focus on the bioinspired construction and applications of one-dimensional (1D) TiO2-based surfaces. In addition, the significant applications related to artificial super-wetting/antiwetting TiO2-based structure surfaces with controllable adhesion are summarized, e.g., self-cleaning, friction reduction, anti-fogging/icing, microfluidic manipulation, fog/water collection, oil/water separation, anti-bioadhesion, and micro-templates for patterning. Finally, the current challenges and future prospects of this renascent and rapidly developing field, especially with regard to 1D TiO2-based surfaces with special wettability and adhesion, are proposed and discussed.
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Affiliation(s)
- Yuekun Lai
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, P. R. China
| | - Jianying Huang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, P. R. China
| | - Zequn Cui
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, 215123, P. R. China
| | - Mingzheng Ge
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, P. R. China
| | - Ke-Qin Zhang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, P. R. China
| | - Zhong Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Lifeng Chi
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, 215123, P. R. China
- Physikalisches Institut and Center for Nanotechnology (CeNTech), Westfaelische Wilhelms-Universitat Muenster, Muenster, 48149, Germany
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42
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Ciasca G, Papi M, Businaro L, Campi G, Ortolani M, Palmieri V, Cedola A, De Ninno A, Gerardino A, Maulucci G, De Spirito M. Recent advances in superhydrophobic surfaces and their relevance to biology and medicine. BIOINSPIRATION & BIOMIMETICS 2016; 11:011001. [PMID: 26844980 DOI: 10.1088/1748-3190/11/1/011001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
By mimicking naturally occurring superhydrophobic surfaces, scientists can now realize artificial surfaces on which droplets of a few microliters of water are forced to assume an almost spherical shape and an extremely high contact angle. In recent decades, these surfaces have attracted much attention due to their technological applications for anti-wetting and self-cleaning materials. Very recently, researchers have shifted their interest to investigate whether superhydrophobic surfaces can be exploited to study biological systems. This research effort has stimulated the design and realization of new devices that allow us to actively organize, visualize and manipulate matter at both the microscale and nanoscale levels. Such precise control opens up wide applications in biomedicine, as it allows us to directly manipulate objects at the typical length scale of cells and macromolecules. This progress report focuses on recent biological and medical applications of superhydrophobicity. Particular regard is paid to those applications that involve the detection, manipulation and study of extremely small quantities of molecules, and to those that allow high throughput cell and biomaterial screening.
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Affiliation(s)
- G Ciasca
- Istituto di Fisica, Università Cattolica del Sacro Cuore, Largo F Vito 1, 00168 Rome, Italy
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Cai Y, Edin F, Jin Z, Alexsson A, Gudjonsson O, Liu W, Rask-Andersen H, Karlsson M, Li H. Strategy towards independent electrical stimulation from cochlear implants: Guided auditory neuron growth on topographically modified nanocrystalline diamond. Acta Biomater 2016; 31:211-220. [PMID: 26593784 DOI: 10.1016/j.actbio.2015.11.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 11/10/2015] [Accepted: 11/14/2015] [Indexed: 12/14/2022]
Abstract
Cochlear implants (CI) have been used for several decades to treat patients with profound hearing loss. Nevertheless, results vary between individuals, and fine hearing is generally poor due to the lack of discrete neural stimulation from the individual receptor hair cells. A major problem is the deliverance of independent stimulation signals to individual auditory neurons. Fine hearing requires significantly more stimulation contacts with intimate neuron/electrode interphases from ordered axonal re-growth, something current CI technology cannot provide. Here, we demonstrate the potential application of micro-textured nanocrystalline diamond (NCD) surfaces on CI electrode arrays. Such textured NCD surfaces consist of micrometer-sized nail-head-shaped pillars (size 5×5μm(2)) made with sequences of micro/nano-fabrication processes, including sputtering, photolithography and plasma etching. The results show that human and murine inner-ear ganglion neurites and, potentially, neural progenitor cells can attach to patterned NCD surfaces without an extracellular matrix coating. Microscopic methods revealed adhesion and neural growth, specifically along the nail-head-shaped NCD pillars in an ordered manner, rather than in non-textured areas. This pattern was established when the inter-NCD pillar distance varied between 4 and 9μm. The findings demonstrate that regenerating auditory neurons show a strong affinity to the NCD pillars, and the technique could be used for neural guidance and the creation of new neural networks. Together with the NCD's unique anti-bacterial and electrical properties, patterned NCD surfaces could provide designed neural/electrode interfaces to create independent electrical stimulation signals in CI electrode arrays for the neural population. STATEMENT OF SIGNIFICANCE Cochlear implant is currently a successful way to treat sensorineural hearing loss and deafness especially in children. Although clinically successful, patients' fine hearing cannot be completely restored. One problem is the amount of the electrodes; 12-20 electrodes are used to replace the function of 3400 inner hair cells. Intense research is ongoing aiming to increase the number of electrodes. This study demonstrates the use of nanocrystalline diamond as a potential nerve-electrode interface. Micrometer-sized nanocrystalline diamond pillars showed high affinity to regenerated human neurons, which grew into a pre-defined network based on the pillar design. Our findings are of particular interest since they can be applied on any silicon-based implant to increase electrode count and to achieve individual neuron stimulation patterns.
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Affiliation(s)
- Yixiao Cai
- Department of Engineering Sciences, Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Fredrik Edin
- Otolaryngology and Head & Neck Surgery, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Zhe Jin
- Physiology; Molecular Physiology and Neuroscience, Department of Neuroscience, Uppsala University, Uppsala, Sweden
| | - Andrei Alexsson
- Rheumatology, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Olafur Gudjonsson
- Neurosurgery, Department of Neuroscience, Uppsala University, Uppsala, Sweden
| | - Wei Liu
- Otolaryngology and Head & Neck Surgery, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Helge Rask-Andersen
- Otolaryngology and Head & Neck Surgery, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Mikael Karlsson
- Department of Engineering Sciences, Ångström Laboratory, Uppsala University, Uppsala, Sweden.
| | - Hao Li
- Otolaryngology and Head & Neck Surgery, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden.
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44
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Marinaro G, Burghammer M, Costa L, Dane T, De Angelis F, Di Fabrizio E, Riekel C. Directed Growth of Virus Nanofilaments on a Superhydrophobic Surface. ACS APPLIED MATERIALS & INTERFACES 2015; 7:12373-12379. [PMID: 25602601 DOI: 10.1021/am507509z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The evaporation of single droplets of colloidal tobacco mosaic virus (TMV) nanoparticles on a superhydrophobic surface with a hexagonal pillar-pattern results in the formation of coffee-ring type residues. We imaged surface features by optical, scanning electron, and atomic force microscopies. Bulk features were probed by raster-scan X-ray nanodiffraction. At ∼100 pg/μL nanoparticle concentration, the rim of the residue connects to neighboring pillars via fibrous extensions containing flow-aligned crystalline domains. At ∼1 pg/μL nanoparticle concentration, nanofilaments of ≥80 nm diameter and ∼20 μm length are formed, extending normal to the residue-rim across a range of pillars. X-ray scattering is dominated by the nanofilament form-factor but some evidence for crystallinity has been obtained. The observation of sheets composed of stacks of self-assembled nanoparticles deposited on pillars suggests that the nanofilaments are drawn from a structured droplet interface.
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Affiliation(s)
- Giovanni Marinaro
- †ESRF-European Synchrotron Radiation Facility, CS 40220, F-38043 Grenoble Cedex 9, France
- ‡Nanostructures Department, Istituto Italiano di Tecnologia, Via Morego 30, Genova 16163, Italy
| | - Manfred Burghammer
- †ESRF-European Synchrotron Radiation Facility, CS 40220, F-38043 Grenoble Cedex 9, France
- #Department of Analytical Chemistry, Ghent University, Krijgslaan 281, S12B-9000 Ghent, Belgium
| | - Luca Costa
- †ESRF-European Synchrotron Radiation Facility, CS 40220, F-38043 Grenoble Cedex 9, France
| | - Thomas Dane
- †ESRF-European Synchrotron Radiation Facility, CS 40220, F-38043 Grenoble Cedex 9, France
| | - Francesco De Angelis
- ‡Nanostructures Department, Istituto Italiano di Tecnologia, Via Morego 30, Genova 16163, Italy
| | - Enzo Di Fabrizio
- §Physical Science and Engineering Divisions, KAUST (King Abdullah University of Science and Technology) , Jeddah, Saudi Arabia
- ⊥BIONEM Lab, University of Magna Graecia, Campus Salvatore Venuta, Viale Europa, 88100 Germaneto-Catanzaro, Italy
| | - Christian Riekel
- †ESRF-European Synchrotron Radiation Facility, CS 40220, F-38043 Grenoble Cedex 9, France
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From 2D to 3D: novel nanostructured scaffolds to investigate signalling in reconstructed neuronal networks. Sci Rep 2015; 5:9562. [PMID: 25910072 PMCID: PMC5407555 DOI: 10.1038/srep09562] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 03/10/2015] [Indexed: 12/21/2022] Open
Abstract
To recreate in vitro 3D neuronal circuits will ultimately increase the relevance of results from cultured to whole-brain networks and will promote enabling technologies for neuro-engineering applications. Here we fabricate novel elastomeric scaffolds able to instruct 3D growth of living primary neurons. Such systems allow investigating the emerging activity, in terms of calcium signals, of small clusters of neurons as a function of the interplay between the 2D or 3D architectures and network dynamics. We report the ability of 3D geometry to improve functional organization and synchronization in small neuronal assemblies. We propose a mathematical modelling of network dynamics that supports such a result. Entrapping carbon nanotubes in the scaffolds remarkably boosted synaptic activity, thus allowing for the first time to exploit nanomaterial/cell interfacing in 3D growth support. Our 3D system represents a simple and reliable construct, able to improve the complexity of current tissue culture models.
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Lima AC, Mano JF. Micro-/nano-structured superhydrophobic surfaces in the biomedical field: part I: basic concepts and biomimetic approaches. Nanomedicine (Lond) 2015; 10:103-19. [DOI: 10.2217/nnm.14.174] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Inspired by natural structures, great attention has been devoted to the study and development of surfaces with extreme wettable properties. The meticulous study of natural systems revealed that the micro/nano-topography of the surface is critical to obtaining unique wettability features, including superhydrophobicity. However, the surface chemistry also has an important role in such surface characteristics. As the interaction of biomaterials with the biological milieu occurs at the surface of the materials, it is expected that synthetic substrates with extreme and controllable wettability ranging from superhydrophilic to superhydrophobic regimes could bring about the possibility of new investigations of cell–material interactions on nonconventional surfaces and the development of alternative devices with biomedical utility. This first part of the review will describe in detail how proteins and cells interact with micro/nano-structured surfaces exhibiting extreme wettabilities.
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Affiliation(s)
- Ana Catarina Lima
- 3B's Research Group–Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal
- ICVS/3B's – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - João F. Mano
- 3B's Research Group–Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal
- ICVS/3B's – PT Government Associate Laboratory, Braga/Guimarães, Portugal
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Marinaro G, La Rocca R, Toma A, Barberio M, Cancedda L, Di Fabrizio E, Decuzzi P, Gentile F. Networks of neuroblastoma cells on porous silicon substrates reveal a small world topology. Integr Biol (Camb) 2015; 7:184-97. [DOI: 10.1039/c4ib00216d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
N2A cells on porous substrates create highly clustered, small world topology patterns.
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Affiliation(s)
- Giovanni Marinaro
- Istituto Italiano di Tecnologia
- 16163 Genova
- Italy
- European Synchrotron Radiation Facility
- 38043 Grenoble Cedex 9
| | | | - Andrea Toma
- Istituto Italiano di Tecnologia
- 16163 Genova
- Italy
| | | | | | - Enzo Di Fabrizio
- King Abdullah University of Science and Technology
- Thuwal 23955-6900
- Saudi Arabia
- Department of Experimental and Clinical Medicine
- University of Magna Graecia
| | - Paolo Decuzzi
- Istituto Italiano di Tecnologia
- 16163 Genova
- Italy
- Department of Experimental and Clinical Medicine
- University of Magna Graecia
| | - Francesco Gentile
- Istituto Italiano di Tecnologia
- 16163 Genova
- Italy
- Department of Experimental and Clinical Medicine
- University of Magna Graecia
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A microwell pattern for C17.2 cell aggregate formation with concave cylindrical surface induced cell peeling. Biomaterials 2014; 35:9423-37. [DOI: 10.1016/j.biomaterials.2014.07.046] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 07/23/2014] [Indexed: 01/17/2023]
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Gentile F, Coluccio ML, Zaccaria RP, Francardi M, Cojoc G, Perozziello G, Raimondo R, Candeloro P, Di Fabrizio E. Selective on site separation and detection of molecules in diluted solutions with super-hydrophobic clusters of plasmonic nanoparticles. NANOSCALE 2014; 6:8208-8225. [PMID: 24930780 DOI: 10.1039/c4nr00796d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Super-hydrophobic surfaces are bio-inspired interfaces with a superficial texture that, in its most common evolution, is formed by a periodic lattice of silicon micro-pillars. Similar surfaces reveal superior properties compared to conventional flat surfaces, including very low friction coefficients. In this work, we modified meso-porous silicon micro-pillars to incorporate networks of metal nano-particles into the porous matrix. In doing so, we obtained a multifunctional-hierarchical system in which (i) at a larger micrometric scale, the super-hydrophobic pillars bring the molecules dissolved in an ultralow-concentration droplet to the active sites of the device, (ii) at an intermediate meso-scale, the meso-porous silicon film adsorbs the low molecular weight content of the solution and, (iii) at a smaller nanometric scale, the aggregates of silver nano-particles would measure the target molecules with unprecedented sensitivity. In the results, we demonstrated how this scheme can be utilized to isolate and detect small molecules in a diluted solution in very low abundance ranges. The presented platform, coupled to Raman or other spectroscopy techniques, is a realistic candidate for the protein expression profiling of biological fluids.
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Affiliation(s)
- Francesco Gentile
- BioNEM, University Magna Graecia of Catanzaro, Catanzaro, 88100, Italy.
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Alépée N, Bahinski A, Daneshian M, De Wever B, Fritsche E, Goldberg A, Hansmann J, Hartung T, Haycock J, Hogberg H, Hoelting L, Kelm JM, Kadereit S, McVey E, Landsiedel R, Leist M, Lübberstedt M, Noor F, Pellevoisin C, Petersohn D, Pfannenbecker U, Reisinger K, Ramirez T, Rothen-Rutishauser B, Schäfer-Korting M, Zeilinger K, Zurich MG. State-of-the-art of 3D cultures (organs-on-a-chip) in safety testing and pathophysiology. ALTEX-ALTERNATIVES TO ANIMAL EXPERIMENTATION 2014. [PMID: 25027500 DOI: 10.14573/altex1406111] [Citation(s) in RCA: 115] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Integrated approaches using different in vitro methods in combination with bioinformatics can (i) increase the success rate and speed of drug development; (ii) improve the accuracy of toxicological risk assessment; and (iii) increase our understanding of disease. Three-dimensional (3D) cell culture models are important building blocks of this strategy which has emerged during the last years. The majority of these models are organotypic, i.e., they aim to reproduce major functions of an organ or organ system. This implies in many cases that more than one cell type forms the 3D structure, and often matrix elements play an important role. This review summarizes the state of the art concerning commonalities of the different models. For instance, the theory of mass transport/metabolite exchange in 3D systems and the special analytical requirements for test endpoints in organotypic cultures are discussed in detail. In the next part, 3D model systems for selected organs--liver, lung, skin, brain--are presented and characterized in dedicated chapters. Also, 3D approaches to the modeling of tumors are presented and discussed. All chapters give a historical background, illustrate the large variety of approaches, and highlight up- and downsides as well as specific requirements. Moreover, they refer to the application in disease modeling, drug discovery and safety assessment. Finally, consensus recommendations indicate a roadmap for the successful implementation of 3D models in routine screening. It is expected that the use of such models will accelerate progress by reducing error rates and wrong predictions from compound testing.
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