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Fontana S, Caramazza L, Marracino P, Cuenca Ortolá I, Colella M, Dolciotti N, Paffi A, Gisbert Roca F, Ivashchenko S, Más Estellés J, Consales C, Balucani M, Apollonio F, Liberti M. Electric field bridging-effect in electrified microfibrils' scaffolds. Front Bioeng Biotechnol 2023; 11:1264406. [PMID: 37954020 PMCID: PMC10634785 DOI: 10.3389/fbioe.2023.1264406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 10/03/2023] [Indexed: 11/14/2023] Open
Abstract
Introduction: The use of biocompatible scaffolds combined with the implantation of neural stem cells, is increasingly being investigated to promote the regeneration of damaged neural tissue, for instance, after a Spinal Cord Injury (SCI). In particular, aligned Polylactic Acid (PLA) microfibrils' scaffolds are capable of supporting cells, promoting their survival and guiding their differentiation in neural lineage to repair the lesion. Despite its biocompatible nature, PLA is an electrically insulating material and thus it could be detrimental for increasingly common scaffolds' electric functionalization, aimed at accelerating the cellular processes. In this context, the European RISEUP project aims to combine high intense microseconds pulses and DC stimulation with neurogenesis, supported by a PLA microfibrils' scaffold. Methods: In this paper a numerical study on the effect of microfibrils' scaffolds on the E-field distribution, in planar interdigitated electrodes, is presented. Realistic microfibrils' 3D CAD models have been built to carry out a numerical dosimetry study, through Comsol Multiphysics software. Results: Under a voltage of 10 V, microfibrils redistribute the E-field values focalizing the field streamlines in the spaces between the fibers, allowing the field to pass and reach maximum values up to 100 kV/m and values comparable with the bare electrodes' device (without fibers). Discussion: Globally the median E-field inside the scaffolded electrodes is the 90% of the nominal field, allowing an adequate cells' exposure.
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Affiliation(s)
- Sara Fontana
- BioEM Lab, Department of Information Engineering, Electronics and Telecommunications (DIET), Sapienza University of Rome, Rome, Italy
- Center for Life Nano- & Neuro-Science, Fondazione Istituto Italiano di Tecnologia (IIT), Rome, Italy
| | - Laura Caramazza
- BioEM Lab, Department of Information Engineering, Electronics and Telecommunications (DIET), Sapienza University of Rome, Rome, Italy
- Center for Life Nano- & Neuro-Science, Fondazione Istituto Italiano di Tecnologia (IIT), Rome, Italy
| | | | - Irene Cuenca Ortolá
- Center for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Valencia, Spain
| | - Micol Colella
- BioEM Lab, Department of Information Engineering, Electronics and Telecommunications (DIET), Sapienza University of Rome, Rome, Italy
| | - Noemi Dolciotti
- BioEM Lab, Department of Information Engineering, Electronics and Telecommunications (DIET), Sapienza University of Rome, Rome, Italy
| | - Alessandra Paffi
- BioEM Lab, Department of Information Engineering, Electronics and Telecommunications (DIET), Sapienza University of Rome, Rome, Italy
| | - Fernando Gisbert Roca
- Center for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Valencia, Spain
| | - Sergiy Ivashchenko
- Center for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Valencia, Spain
| | - Jorge Más Estellés
- Center for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Valencia, Spain
| | - Claudia Consales
- Division of Health Protection Technologies, ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Rome, Italy
| | | | - Francesca Apollonio
- BioEM Lab, Department of Information Engineering, Electronics and Telecommunications (DIET), Sapienza University of Rome, Rome, Italy
- Center for Life Nano- & Neuro-Science, Fondazione Istituto Italiano di Tecnologia (IIT), Rome, Italy
| | - Micaela Liberti
- BioEM Lab, Department of Information Engineering, Electronics and Telecommunications (DIET), Sapienza University of Rome, Rome, Italy
- Center for Life Nano- & Neuro-Science, Fondazione Istituto Italiano di Tecnologia (IIT), Rome, Italy
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Jiang Y, Jenjob R, Yang SG. Enhanced Therapeutic Potential of Irreversible Electroporation under Combination with Gold-Doped Mesoporous Silica Nanoparticles against EMT-6 Breast Cancer Cells. BIOSENSORS 2022; 13:41. [PMID: 36671876 PMCID: PMC9855861 DOI: 10.3390/bios13010041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/07/2022] [Accepted: 12/23/2022] [Indexed: 06/17/2023]
Abstract
Irreversible electroporation (IRE) is a non-thermal tumor ablation technique that delivers short pulses of strong electric fields to cancer tissues and induces cell death through the destruction of cell membranes. Here, we synthesized gold-doped mesoporous silica nanoparticles (Au-MSNs) via incipient wetness impregnation and evaluated the therapeutic potentials of combination therapy with IRE. The fabricated Au-MSNs had around 80-100 nm of particle size and were successfully end-doped with Au nanoparticles. Combination treatment of IRE (800 V/cm) and Au-MSNs (100 μg/mL) increased cell membrane permeability by 25-fold compared with single IRE treatment. Cellular reactive oxygen species (ROS) and lipid peroxidation of EMT-6 cells were significantly increased by 14- and 265-fold, respectively, under combination treatment of IRE (800 V/cm) and Au-MSNs (100 µg/mL). Cytotoxic cell death increased by 28% under a combination treatment of IRE (800 V/cm) and Au-MSNs (100 ug/mL) over single IRE. Our studies suggest that the combination treatment of IRE with Au-MSNs can enhance the therapeutic efficacy of IRE for breast cancer.
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Affiliation(s)
| | | | - Su-Geun Yang
- Correspondence: ; Tel.: +82-32-890-2832; Fax: +82-32-890-1199
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Merla C, Nardoni M, Scherman M, Petralito S, Caramazza L, Apollonio F, Liberti M, Paolicelli P, Attal-Tretout B, Mir LM. Changes in hydration of liposome membranes exposed to nanosecond electric pulses detected by wide-field Coherent anti-Stokes Raman microspectroscopy. Bioelectrochemistry 2022; 147:108218. [DOI: 10.1016/j.bioelechem.2022.108218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/25/2022] [Accepted: 07/28/2022] [Indexed: 11/02/2022]
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Guo F, Wang J, Zhou J, Qian K, Qu H, Liu P, Zhai S. All-atom molecular dynamics simulations of the combined effects of different phospholipids and cholesterol content on electroporation. RSC Adv 2022; 12:24491-24500. [PMID: 36128384 PMCID: PMC9425445 DOI: 10.1039/d2ra03895a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 07/27/2022] [Indexed: 11/21/2022] Open
Abstract
In this paper, we applied all-atom molecular dynamics (MD) simulations to study the effects of phospholipids and cholesterol content on bilayer membrane electroporation.
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Affiliation(s)
- Fei Guo
- Institute of Ecological Safety, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Ji Wang
- Institute of Ecological Safety, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Jiong Zhou
- Institute of Ecological Safety, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Kun Qian
- Institute of Ecological Safety, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Hongchun Qu
- Institute of Ecological Safety, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Ping Liu
- Institute of Ecological Safety, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Shidong Zhai
- Institute of Ecological Safety, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
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