1
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Gokhale KM, Patravale V, Pingale R, Pandey P, Vavilala SL. Se-functionalized ZIF-8 nanoparticles: synthesis, characterization and disruption of biofilms and quorum sensing in Serratia marcescens. Biomed Mater 2024; 19:055020. [PMID: 39025122 DOI: 10.1088/1748-605x/ad6549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Accepted: 07/18/2024] [Indexed: 07/20/2024]
Abstract
The majority of research on nanomaterials has been concentrated on metal nanoparticles since they are easily made and manipulated. Nanomaterials have shown a wide range of applications in biology. Nevertheless, their bioactivity declines due to their extreme susceptibility to and novel Se@ZIF-8 by chemical method. The sizes and morphologies of Se (0) and Se@ZIFchemical and physical stimuli. The goal of encapsulating these nanomaterials in a matrix is gradually being pursued, which boosts their affordability, stability, and usability. Metal-organic frameworks, often known as MOFs, have the potential to be the best platforms for encapsulating metal nanoparticles due to their well-defined frameworks, persistent porosity, and flexibility in modification. In this investigation, we report the synthesis and optimization of polyvinylpyrrolidone-stabilized Se(0) nanoparticles -8 were affected by the ratios of Se/Zn2+and [hmim]/Zn2+used. The optimized Se@ZIF-8 nanoparticles exhibited a particle size and zeta potential of 319 nm and -34 mv respectively. Transmission electron microscopy displayed spherical morphology for Se(0) nanoparticles, whereas the surface morphology of novel Se@ZIF-8 nanoparticles was drastically changed to hexagonal shaped structures with smooth surface morphologies in scanning electron microscopy (SEM). The DTA, TG/DTG, XRD analysis confirmed the presence of novel Se incorporated ZIF-8 nanoparticulate framework. The synthesized novel Se@ZIF-8 nanoparticles showed efficient antibacterial activity as evidenced by low MIC values. Interestingly, these Se@ZIF-8 NPs not only inhibited biofilm formation inS. marcescens,but also effectively eradicated mature biofilms by degrading the eDNA of the EPS layer. It was validated by confocal laser scanning microscopy and SEM analysis. It was observed that Se@ZIF-8 targeted the Quroum Sensing pathway and reduced its associated virulence factors production. This work opens up a different approach of Se@ZIF-8 nanoparticles as novel antibiotics to treat biofilm-associated infections caused byS. marcescensand offer a solution for antimicrobial resistance.
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Affiliation(s)
- Kunal M Gokhale
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM's NMIMS, V.L. Mehta Road, Vile Parle, Mumbai 400056, India
| | - Vandana Patravale
- Institute of Chemical Technology, Department of Pharm. Sciences and Technology, Nathalal Parekh Marg, Matunga, Mumbai 400019, India
| | - Rutuja Pingale
- Dr. L. H. Hiranandani College of Pharmacy, Ulhasnagar 421003, India
| | - Pooja Pandey
- School of Biological Sciences, UM DAE Centre for Excellence in basic Sciences, Mumbai 400098, India
| | - Sirisha L Vavilala
- School of Biological Sciences, UM DAE Centre for Excellence in basic Sciences, Mumbai 400098, India
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2
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Han M, Yildiz E, Bozuyuk U, Aydin A, Yu Y, Bhargava A, Karaz S, Sitti M. Janus microparticles-based targeted and spatially-controlled piezoelectric neural stimulation via low-intensity focused ultrasound. Nat Commun 2024; 15:2013. [PMID: 38443369 PMCID: PMC10915158 DOI: 10.1038/s41467-024-46245-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 02/20/2024] [Indexed: 03/07/2024] Open
Abstract
Electrical stimulation is a fundamental tool in studying neural circuits, treating neurological diseases, and advancing regenerative medicine. Injectable, free-standing piezoelectric particle systems have emerged as non-genetic and wireless alternatives for electrode-based tethered stimulation systems. However, achieving cell-specific and high-frequency piezoelectric neural stimulation remains challenging due to high-intensity thresholds, non-specific diffusion, and internalization of particles. Here, we develop cell-sized 20 μm-diameter silica-based piezoelectric magnetic Janus microparticles (PEMPs), enabling clinically-relevant high-frequency neural stimulation of primary neurons under low-intensity focused ultrasound. Owing to its functionally anisotropic design, half of the PEMP acts as a piezoelectric electrode via conjugated barium titanate nanoparticles to induce electrical stimulation, while the nickel-gold nanofilm-coated magnetic half provides spatial and orientational control on neural stimulation via external uniform rotating magnetic fields. Furthermore, surface functionalization with targeting antibodies enables cell-specific binding/targeting and stimulation of dopaminergic neurons. Taking advantage of such functionalities, the PEMP design offers unique features towards wireless neural stimulation for minimally invasive treatment of neurological diseases.
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Affiliation(s)
- Mertcan Han
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany
- Institute for Biomedical Engineering, ETH Zurich, 8092, Zurich, Switzerland
| | - Erdost Yildiz
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany
| | - Ugur Bozuyuk
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany
| | - Asli Aydin
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany
- Department of Neurosurgery, Maastricht University Medical Centre, Maastricht, Netherlands
| | - Yan Yu
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany
| | - Aarushi Bhargava
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany
| | - Selcan Karaz
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany
- Institute for Biomedical Engineering, ETH Zurich, 8092, Zurich, Switzerland
| | - Metin Sitti
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany.
- Institute for Biomedical Engineering, ETH Zurich, 8092, Zurich, Switzerland.
- School of Medicine and College of Engineering, Koç University, 34450, Istanbul, Türkiye.
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3
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Lomboni DJ, Ozgun A, de Medeiros TV, Staines W, Naccache R, Woulfe J, Variola F. Electroconductive Collagen-Carbon Nanodots Nanocomposite Elicits Neurite Outgrowth, Supports Neurogenic Differentiation and Accelerates Electrophysiological Maturation of Neural Progenitor Spheroids. Adv Healthc Mater 2024; 13:e2301894. [PMID: 37922888 DOI: 10.1002/adhm.202301894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 10/04/2023] [Indexed: 11/07/2023]
Abstract
Neuronal disorders are characterized by the loss of functional neurons and disrupted neuroanatomical connectivity, severely impacting the quality of life of patients. This study investigates a novel electroconductive nanocomposite consisting of glycine-derived carbon nanodots (GlyCNDs) incorporated into a collagen matrix and validates its beneficial physicochemical and electro-active cueing to relevant cells. To this end, this work employs mouse induced pluripotent stem cell (iPSC)-derived neural progenitor (NP) spheroids. The findings reveal that the nanocomposite markedly augmented neuronal differentiation in NP spheroids and stimulate neuritogenesis. In addition, this work demonstrates that the biomaterial-driven enhancements of the cellular response ultimately contribute to the development of highly integrated and functional neural networks. Lastly, acute dizocilpine (MK-801) treatment provides new evidence for a direct interaction between collagen-bound GlyCNDs and postsynaptic N-methyl-D-aspartate (NMDA) receptors, thereby suggesting a potential mechanism underlying the observed cellular events. In summary, the findings establish a foundation for the development of a new nanocomposite resulting from the integration of carbon nanomaterials within a clinically approved hydrogel, toward an effective biomaterial-based strategy for addressing neuronal disorders by restoring damaged/lost neurons and supporting the reestablishment of neuroanatomical connectivity.
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Affiliation(s)
- David J Lomboni
- Department of Mechanical Engineering, University of Ottawa, Ottawa, ON, K1N 6N5, Canada
- Ottawa-Carleton Institute for Biomedical Engineering (OCIBME), Ottawa, ON, K1N 6N5, Canada
| | - Alp Ozgun
- Department of Mechanical Engineering, University of Ottawa, Ottawa, ON, K1N 6N5, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, K1H 8M5, Canada
| | - Tayline V de Medeiros
- Department of Chemistry and Biochemistry and the Centre for NanoScience Research, Concordia University, Montreal, QC, H4B 1R6, Canada
- Quebec Centre for Advanced Materials, Department of Chemistry and Biochemistry, Concordia University, Montreal, QC, H4B 1R6, Canada
| | - William Staines
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, K1H 8M5, Canada
| | - Rafik Naccache
- Department of Chemistry and Biochemistry and the Centre for NanoScience Research, Concordia University, Montreal, QC, H4B 1R6, Canada
- Quebec Centre for Advanced Materials, Department of Chemistry and Biochemistry, Concordia University, Montreal, QC, H4B 1R6, Canada
| | - John Woulfe
- The Ottawa Hospital Research Institute, Ottawa, ON, K1Y 4E9, Canada
| | - Fabio Variola
- Department of Mechanical Engineering, University of Ottawa, Ottawa, ON, K1N 6N5, Canada
- Ottawa-Carleton Institute for Biomedical Engineering (OCIBME), Ottawa, ON, K1N 6N5, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, K1H 8M5, Canada
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4
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Moschetta M, Vurro V, Sesti V, Bertarelli C, Paternò GM, Lanzani G. Modulation of Mechanosensitive Potassium Channels by a Membrane-targeted Nongenetic Photoswitch. J Phys Chem B 2023; 127:8869-8878. [PMID: 37815392 PMCID: PMC10591468 DOI: 10.1021/acs.jpcb.3c04551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/11/2023] [Indexed: 10/11/2023]
Abstract
Mechanosensitive ion channels are present in the plasma membranes of all cells. They play a fundamental role in converting mechanical stimuli into biochemical signals and are involved in several physiological processes such as touch sensation, hearing, and blood pressure regulation. This protein family includes TWIK-related arachidonic acid-stimulated K+ channel (TRAAK), which is specifically implicated in the maintenance of the resting membrane potential and in the regulation of a variety of important neurobiological functions. Dysregulation of these channels has been linked to various diseases, including blindness, epilepsy, cardiac arrhythmia, and chronic pain. For these reasons, mechanosensitive channels are targets for the treatment of several diseases. Here, we propose a new approach to investigate TRAAK ion channel modulation that is based on nongenetic photostimulation. We employed an amphiphilic azobenzene, named Ziapin2. In the dark, Ziapin2 preferentially dwells in the plasma membrane, causing a thinning of the membrane. Upon light irradiation, an isomerization occurs, breaking the dimers and inducing membrane relaxation. To study the effect of Ziapin2 on the mechanosensitive channels, we expressed human TRAAK (hTRAAK) channels in HEK293T cells. We observed that Ziapin2 insertion in the membrane is able per se to recruit hTRAAK, permitting the exit of K+ ions outside the cells with a consequent hyperpolarization of the cell membrane. During light stimulation, membrane relaxation induces hTRAAK closure, generating a consistent and compensatory depolarization. These results add information to the Ziapin2 mechanism and suggest that membrane deformation can be a tool for the nonselective modulation of mechanosensitive channels.
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Affiliation(s)
- Matteo Moschetta
- Center
for Nano Science and Technology, Istituto
Italiano di Tecnologia, Via Rubattino, 81, 20134 Milano, Italy
| | - Vito Vurro
- Center
for Nano Science and Technology, Istituto
Italiano di Tecnologia, Via Rubattino, 81, 20134 Milano, Italy
| | - Valentina Sesti
- Center
for Nano Science and Technology, Istituto
Italiano di Tecnologia, Via Rubattino, 81, 20134 Milano, Italy
- Department
of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Chiara Bertarelli
- Center
for Nano Science and Technology, Istituto
Italiano di Tecnologia, Via Rubattino, 81, 20134 Milano, Italy
- Department
of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Giuseppe Maria Paternò
- Center
for Nano Science and Technology, Istituto
Italiano di Tecnologia, Via Rubattino, 81, 20134 Milano, Italy
- Department
of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Guglielmo Lanzani
- Center
for Nano Science and Technology, Istituto
Italiano di Tecnologia, Via Rubattino, 81, 20134 Milano, Italy
- Department
of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
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5
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Mohebichamkhorami F, Faizi M, Mahmoudifard M, Hajikarim-Hamedani A, Mohseni SS, Heidari A, Ghane Y, Khoramjouy M, Khayati M, Ghasemi R, Zali H, Hosseinzadeh S, Mostafavi E. Microfluidic Synthesis of Ultrasmall Chitosan/Graphene Quantum Dots Particles for Intranasal Delivery in Alzheimer's Disease Treatment. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207626. [PMID: 37309299 DOI: 10.1002/smll.202207626] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 04/26/2023] [Indexed: 06/14/2023]
Abstract
Nanoparticles (NPs) based therapies for Alzheimer's disease (AD) attract interest due to their ability to pass across or bypass the blood-brain barrier. Chitosan (CS) NPs or graphene quantum dots (GQDs) are promising drug carriers with excellent physicochemical and electrical properties. The current study proposes the combination of CS and GQDs in ultrasmall NP form not as drug carriers but as theranostic agents for AD. The microfluidic-based synthesis of the CS/GQD NPs with optimized characteristics makes them ideal for transcellular transfer and brain targeting after intranasal (IN) delivery. The NPs have the ability to enter the cytoplasm of C6 glioma cells in vitro and show dose and time-dependent effects on the viability of the cells. IN administration of the NPs to streptozotocin (STZ) induced AD-like models lead to a significant number of entrances of the treated rats to the target arm in the radial arm water maze (RAWM) test. It shows the positive effect of the NPs on the memory recovery of the treated rats. The NPs are detectable in the brain via in vivo bioimaging due to GQDs as diagnostic markers. The noncytotoxic NPs localize in the myelinated axons of hippocampal neurons. They do not affect the clearance of amyloid β (Aβ) plaques at intercellular space. Moreover, they showed no positive impact on the enhancement of MAP2 and NeuN expression as markers of neural regeneration. The memory improvement in treated AD rats may be due to neuroprotection via the anti-inflammation effect and regulation of the brain tissue microenvironment that needs to be studied.
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Affiliation(s)
- Fariba Mohebichamkhorami
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, 1968917313, Iran
| | - Mehrdad Faizi
- Department of Pharmacology and Toxicology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, 19919-53381, Iran
| | - Matin Mahmoudifard
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, 1497716316, Iran
| | | | - Seyedeh Sarvenaz Mohseni
- Department of Pharmacology and Toxicology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, 19919-53381, Iran
| | - Amirhossein Heidari
- Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, 1916893813, Iran
| | - Yekta Ghane
- School of Medicine, Tehran University of Medical Sciences, Tehran, 1461884513, Iran
| | - Mona Khoramjouy
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, 19919-53381, Iran
| | - Maryam Khayati
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, 45139-56184, Iran
- Pharmaceutical Nanotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, 45139-56184, Iran
| | - Rasoul Ghasemi
- Neurophysiology research center and Department of Physiology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, 1985717443, Iran
| | - Hakimeh Zali
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, 1968917313, Iran
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, 1968917313, Iran
| | - Simzar Hosseinzadeh
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, 1968917313, Iran
| | - Ebrahim Mostafavi
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
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6
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Zhang Z, You Y, Ge M, Lin H, Shi J. Functional nanoparticle-enabled non-genetic neuromodulation. J Nanobiotechnology 2023; 21:319. [PMID: 37674191 PMCID: PMC10483742 DOI: 10.1186/s12951-023-02084-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 08/28/2023] [Indexed: 09/08/2023] Open
Abstract
Stimulating ion channels targeting in neuromodulation by external signals with the help of functionalized nanoparticles, which integrates the pioneering achievements in the fields of neurosciences and nanomaterials, has involved into a novel interdisciplinary field. The emerging technique developed in this field enable simple, remote, non-invasive, and spatiotemporally precise nerve regulations and disease therapeutics, beyond traditional treatment methods. In this paper, we define this emerging field as nano-neuromodulation and summarize the most recent developments of non-genetic nano-neuromodulation (non-genetic NNM) over the past decade based on the innovative design concepts of neuromodulation nanoparticle systems. These nanosystems, which feature diverse compositions, structures and synthesis approaches, could absorb certain exogenous stimuli like light, sound, electric or magnetic signals, and subsequently mediate mutual transformations between above signals, or chemical reactions, to regulate stimuli-sensitive ion channels and ion migrations which play vital roles in the nervous system. We will also discuss the obstacles and challenges in the future development of non-genetic NNM, and propose its future developments, to add the further progress of this promising field.
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Affiliation(s)
- Zhimin Zhang
- Shanghai Institute of Ceramics Chinese Academy of Sciences, Research Unit of Nanocatalytic Medicine in Specific Therapy for Serious Disease, Chinese Academy of Medical Sciences, Shanghai, 200050, People's Republic of China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Yanling You
- Shanghai Institute of Ceramics Chinese Academy of Sciences, Research Unit of Nanocatalytic Medicine in Specific Therapy for Serious Disease, Chinese Academy of Medical Sciences, Shanghai, 200050, People's Republic of China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Min Ge
- Shanghai Institute of Ceramics Chinese Academy of Sciences, Research Unit of Nanocatalytic Medicine in Specific Therapy for Serious Disease, Chinese Academy of Medical Sciences, Shanghai, 200050, People's Republic of China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
| | - Han Lin
- Shanghai Institute of Ceramics Chinese Academy of Sciences, Research Unit of Nanocatalytic Medicine in Specific Therapy for Serious Disease, Chinese Academy of Medical Sciences, Shanghai, 200050, People's Republic of China.
- Shanghai Tenth People's Hospital, Shanghai Frontiers Science Center of Nanocatalytic Medicine, School of Medicine, Tongji University, Shanghai, 200331, People's Republic of China.
| | - Jianlin Shi
- Shanghai Institute of Ceramics Chinese Academy of Sciences, Research Unit of Nanocatalytic Medicine in Specific Therapy for Serious Disease, Chinese Academy of Medical Sciences, Shanghai, 200050, People's Republic of China
- Shanghai Tenth People's Hospital, Shanghai Frontiers Science Center of Nanocatalytic Medicine, School of Medicine, Tongji University, Shanghai, 200331, People's Republic of China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
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7
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Zhang Z, You Y, Ge M, Lin H, Shi J. Functional nanoparticle-enabled non-genetic neuromodulation. J Nanobiotechnology 2023; 21:319. [DOI: doi.org/10.1186/s12951-023-02084-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 08/28/2023] [Indexed: 09/08/2023] Open
Abstract
AbstractStimulating ion channels targeting in neuromodulation by external signals with the help of functionalized nanoparticles, which integrates the pioneering achievements in the fields of neurosciences and nanomaterials, has involved into a novel interdisciplinary field. The emerging technique developed in this field enable simple, remote, non-invasive, and spatiotemporally precise nerve regulations and disease therapeutics, beyond traditional treatment methods. In this paper, we define this emerging field as nano-neuromodulation and summarize the most recent developments of non-genetic nano-neuromodulation (non-genetic NNM) over the past decade based on the innovative design concepts of neuromodulation nanoparticle systems. These nanosystems, which feature diverse compositions, structures and synthesis approaches, could absorb certain exogenous stimuli like light, sound, electric or magnetic signals, and subsequently mediate mutual transformations between above signals, or chemical reactions, to regulate stimuli-sensitive ion channels and ion migrations which play vital roles in the nervous system. We will also discuss the obstacles and challenges in the future development of non-genetic NNM, and propose its future developments, to add the further progress of this promising field.
Graphical Abstract
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8
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Almasri RM, Ladouceur F, Mawad D, Esrafilzadeh D, Firth J, Lehmann T, Poole-Warren LA, Lovell NH, Al Abed A. Emerging trends in the development of flexible optrode arrays for electrophysiology. APL Bioeng 2023; 7:031503. [PMID: 37692375 PMCID: PMC10491464 DOI: 10.1063/5.0153753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 08/08/2023] [Indexed: 09/12/2023] Open
Abstract
Optical-electrode (optrode) arrays use light to modulate excitable biological tissues and/or transduce bioelectrical signals into the optical domain. Light offers several advantages over electrical wiring, including the ability to encode multiple data channels within a single beam. This approach is at the forefront of innovation aimed at increasing spatial resolution and channel count in multichannel electrophysiology systems. This review presents an overview of devices and material systems that utilize light for electrophysiology recording and stimulation. The work focuses on the current and emerging methods and their applications, and provides a detailed discussion of the design and fabrication of flexible arrayed devices. Optrode arrays feature components non-existent in conventional multi-electrode arrays, such as waveguides, optical circuitry, light-emitting diodes, and optoelectronic and light-sensitive functional materials, packaged in planar, penetrating, or endoscopic forms. Often these are combined with dielectric and conductive structures and, less frequently, with multi-functional sensors. While creating flexible optrode arrays is feasible and necessary to minimize tissue-device mechanical mismatch, key factors must be considered for regulatory approval and clinical use. These include the biocompatibility of optical and photonic components. Additionally, material selection should match the operating wavelength of the specific electrophysiology application, minimizing light scattering and optical losses under physiologically induced stresses and strains. Flexible and soft variants of traditionally rigid photonic circuitry for passive optical multiplexing should be developed to advance the field. We evaluate fabrication techniques against these requirements. We foresee a future whereby established telecommunications techniques are engineered into flexible optrode arrays to enable unprecedented large-scale high-resolution electrophysiology systems.
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Affiliation(s)
- Reem M. Almasri
- Graduate School of Biomedical Engineering, UNSW, Sydney, NSW 2052, Australia
| | | | - Damia Mawad
- School of Materials Science and Engineering, UNSW, Sydney, NSW 2052, Australia
| | - Dorna Esrafilzadeh
- Graduate School of Biomedical Engineering, UNSW, Sydney, NSW 2052, Australia
| | - Josiah Firth
- Australian National Fabrication Facility, UNSW, Sydney, NSW 2052, Australia
| | - Torsten Lehmann
- School of Electrical Engineering and Telecommunications, UNSW, Sydney, NSW 2052, Australia
| | | | | | - Amr Al Abed
- Graduate School of Biomedical Engineering, UNSW, Sydney, NSW 2052, Australia
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9
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Vurro V, Shani K, Ardoña HAM, Zimmerman JF, Sesti V, Lee KY, Jin Q, Bertarelli C, Parker KK, Lanzani G. Light-triggered cardiac microphysiological model. APL Bioeng 2023; 7:026108. [PMID: 37234844 PMCID: PMC10208677 DOI: 10.1063/5.0143409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023] Open
Abstract
Light is recognized as an accurate and noninvasive tool for stimulating excitable cells. Here, we report on a non-genetic approach based on organic molecular phototransducers that allows wiring- and electrode-free tissue modulation. As a proof of concept, we show photostimulation of an in vitro cardiac microphysiological model mediated by an amphiphilic azobenzene compound that preferentially dwells in the cell membrane. Exploiting this optical based stimulation technology could be a disruptive approach for highly resolved cardiac tissue stimulation.
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Affiliation(s)
- V. Vurro
- Center for Nanoscience and Technology, Istituto Italiano di Teconologia, Milano, 20133 Italy
| | - K. Shani
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Science, Harvard University, Boston, Massachusetts 02134, USA
| | | | - J. F. Zimmerman
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Science, Harvard University, Boston, Massachusetts 02134, USA
| | | | | | - Q. Jin
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Science, Harvard University, Boston, Massachusetts 02134, USA
| | | | - K. K. Parker
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Science, Harvard University, Boston, Massachusetts 02134, USA
| | - G. Lanzani
- Author to whom correspondence should be addressed:
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10
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Saha R, Wu K, Bloom RP, Liang S, Tonini D, Wang JP. A review on magnetic and spintronic neurostimulation: challenges and prospects. NANOTECHNOLOGY 2022; 33:182004. [PMID: 35013010 DOI: 10.1088/1361-6528/ac49be] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
In the treatment of neurodegenerative, sensory and cardiovascular diseases, electrical probes and arrays have shown quite a promising success rate. However, despite the outstanding clinical outcomes, their operation is significantly hindered by non-selective control of electric fields. A promising alternative is micromagnetic stimulation (μMS) due to the high permeability of magnetic field through biological tissues. The induced electric field from the time-varying magnetic field generated by magnetic neurostimulators is used to remotely stimulate neighboring neurons. Due to the spatial asymmetry of the induced electric field, high spatial selectivity of neurostimulation has been realized. Herein, some popular choices of magnetic neurostimulators such as microcoils (μcoils) and spintronic nanodevices are reviewed. The neurostimulator features such as power consumption and resolution (aiming at cellular level) are discussed. In addition, the chronic stability and biocompatibility of these implantable neurostimulator are commented in favor of further translation to clinical settings. Furthermore, magnetic nanoparticles (MNPs), as another invaluable neurostimulation material, has emerged in recent years. Thus, in this review we have also included MNPs as a remote neurostimulation solution that overcomes physical limitations of invasive implants. Overall, this review provides peers with the recent development of ultra-low power, cellular-level, spatially selective magnetic neurostimulators of dimensions within micro- to nano-range for treating chronic neurological disorders. At the end of this review, some potential applications of next generation neuro-devices have also been discussed.
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Affiliation(s)
- Renata Saha
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN 55455, United States of America
| | - Kai Wu
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN 55455, United States of America
| | - Robert P Bloom
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN 55455, United States of America
| | - Shuang Liang
- Department of Chemical Engineering and Material Science, University of Minnesota, Minneapolis, MN 55455, United States of America
| | - Denis Tonini
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN 55455, United States of America
| | - Jian-Ping Wang
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN 55455, United States of America
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11
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Dominguez-Paredes D, Jahanshahi A, Kozielski KL. Translational considerations for the design of untethered nanomaterials in human neural stimulation. Brain Stimul 2021; 14:1285-1297. [PMID: 34375694 DOI: 10.1016/j.brs.2021.08.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 07/03/2021] [Accepted: 08/01/2021] [Indexed: 12/18/2022] Open
Abstract
Neural stimulation is a powerful tool to study brain physiology and an effective treatment for many neurological disorders. Conventional interfaces use electrodes implanted in the brain. As these are often invasive and have limited spatial targeting, they carry a potential risk of side-effects. Smaller neural devices may overcome these obstacles, and as such, the field of nanoscale and remotely powered neural stimulation devices is growing. This review will report on current untethered, injectable nanomaterial technologies intended for neural stimulation, with a focus on material-tissue interface engineering. We will review nanomaterials capable of wireless neural stimulation, and discuss their stimulation mechanisms. Taking cues from more established nanomaterial fields (e.g., cancer theranostics, drug delivery), we will then discuss methods to modify material interfaces with passive and bioactive coatings. We will discuss methods of delivery to a desired brain region, particularly in the context of how delivery and localization are affected by surface modification. We will also consider each of these aspects of nanoscale neurostimulators with a focus on their prospects for translation to clinical use.
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Affiliation(s)
- David Dominguez-Paredes
- Department of Neurosurgery, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Ali Jahanshahi
- Department of Neurosurgery, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Kristen L Kozielski
- Department of Bioengineering and Biosystems, Institute of Functional Interfaces, Karlsruhe Institute of Technology, Karlsruhe, Germany; Department of Electrical and Computer Engineering, Technical University of Munich, Munich, Germany.
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12
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Monti F, Manfredi G, Palamà IE, Kovtun A, Zangoli M, D'Amone S, Ortolani L, Bondelli G, Szreder T, Bobrowski K, D'Angelantonio M, Lanzani G, Di Maria F. Sterilization of Semiconductive Nanomaterials: The Case of Water-Suspended Poly-3-Hexylthiophene Nanoparticles. Adv Healthc Mater 2021; 10:e2001306. [PMID: 33448138 DOI: 10.1002/adhm.202001306] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 11/23/2020] [Indexed: 12/11/2022]
Abstract
In this work, the feasibility of sterilizing a water suspension of poly-3-hexylthiophene nanoparticles (P3HT-NPs) is investigated using ionizing radiation, either γ-rays or high-energy electrons (e-beam). It is found that regardless of the irradiation source, the size, polydispersity, aggregation stability, and morphology of the NPs are not affected by the treatment. Furthermore, the impact of ionizing radiation on the physicochemical properties of NPs at different absorbed radiation doses (10-25 kGy) and dose rates (kGy time-1 ) is evaluated through different spectroscopic techniques. The results indicate that delivering a high dose of radiations (25 kGy) at a high dose rate, that is, kGy s-1 , as achieved by e-beam irradiation, preserves the characteristics of the polymeric NPs. Differently, the same radiation dose but delivered at a lower dose rate, that is, kGy h-1 , as attained by using a γ-source, can modify the physicochemical properties of the polymer. Sterility tests indicate that an absorbed dose of 10 kGy, delivered either with γ-rays or e-beam, is already sufficient for effective sterilization of the colloidal suspension and for reducing the endotoxin content. Finally, NPs irradiated at different doses, exhibit the same cytocompatibility and cell internalization characteristics in human neuroblastoma SH-SY5Y cells of NPs prepared under aseptic conditions.
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Affiliation(s)
- Filippo Monti
- Consiglio Nazionale delle Ricerche, CNR‐ISOF via P. Gobetti 101 Bologna 40129 Italy
| | - Giovanni Manfredi
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia via Pascoli 70/3 Milano 20133 Italy
| | - Ilaria Elena Palamà
- Consiglio Nazionale delle Ricerche, CNR‐Nanotec c/o Campus Ecotekne—Università del Salento, via Monteroni Lecce 73100 Italy
| | - Alessandro Kovtun
- Consiglio Nazionale delle Ricerche, CNR‐ISOF via P. Gobetti 101 Bologna 40129 Italy
| | - Mattia Zangoli
- Consiglio Nazionale delle Ricerche, CNR‐ISOF via P. Gobetti 101 Bologna 40129 Italy
| | - Stefania D'Amone
- Consiglio Nazionale delle Ricerche, CNR‐Nanotec c/o Campus Ecotekne—Università del Salento, via Monteroni Lecce 73100 Italy
| | - Luca Ortolani
- Consiglio Nazionale delle Ricerche, CNR‐IMM via P. Gobetti 101 Bologna 40129 Italy
| | - Gaia Bondelli
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia via Pascoli 70/3 Milano 20133 Italy
| | - Tomasz Szreder
- Institute for Nuclear Chemistry and Technology Center of Radiation Research and Technology Dorodna 16 Warszawa 03‐195 Poland
| | - Krzysztof Bobrowski
- Institute for Nuclear Chemistry and Technology Center of Radiation Research and Technology Dorodna 16 Warszawa 03‐195 Poland
| | - Mila D'Angelantonio
- Consiglio Nazionale delle Ricerche, CNR‐ISOF via P. Gobetti 101 Bologna 40129 Italy
| | - Guglielmo Lanzani
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia via Pascoli 70/3 Milano 20133 Italy
| | - Francesca Di Maria
- Consiglio Nazionale delle Ricerche, CNR‐ISOF via P. Gobetti 101 Bologna 40129 Italy
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13
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Kim HS, Choi H, Flores MC, Razzaq A, Gwak YS, Ahn D, Kim MS, Gurel O, Lee BH, In SI. Noble metal sensitized invasive porous bioelectrodes: advanced medical device for enhanced neuronal activity and chronic alcohol treatment. RSC Adv 2020; 10:43514-43522. [PMID: 35519706 PMCID: PMC9058419 DOI: 10.1039/d0ra07922g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 11/24/2020] [Indexed: 12/16/2022] Open
Abstract
Invasive bioelectrodes are widely used as an effective treatment for several acute and chronic diseases. In earlier work using high surface area invasive porous bioelectrodes evaluated in an animal model of alcoholism withdrawal, we demonstrated significantly improved electrophysiological and behavioral responses. In this study, we further modify the surface of these invasive porous bioelectrodes with noble metal (Ag, Au, Pt) nanoparticles. Compared to both conventional and porous bioelectrodes, noble metal sensitized invasive porous bioelectrodes show markedly increased low threshold (LT) and wide dynamic range (WDR) neuronal activity. In particular, Pt-sensitized invasive porous bioelectrodes show the highest WDR neuronal activity only upon insertion. In addition, Ag-sensitized invasive porous bioelectrodes, whose surface area is about 37 times greater than that of conventional bioelectrodes, show improved electrochemical properties with higher LT and WDR neuronal activity when stimulated. In an animal model of chronic alcoholism, using normal and alcohol-treated Sprague-Dawley (SD) rats evaluated with the elevated plus maze (EPM) test, the Ag-sensitized invasive porous bioelectrodes show about 20% higher open arms time. These results suggest that these noble metal-sensitized invasive bioelectrodes may offer improved therapeutic outcomes for the treatment of chronic alcoholism, and given these enhanced electrophysiological properties, for other conditions as well.
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Affiliation(s)
- Hong Soo Kim
- Department of Energy Science & Engineering, Daegu Gyeongbuk Institute of Science & Technology (DGIST) 333 Techno Jungang-daero, Hyeonpung-eup Dalseong-gun Daegu 42988 Republic of Korea
| | - Hansaem Choi
- Department of Energy Science & Engineering, Daegu Gyeongbuk Institute of Science & Technology (DGIST) 333 Techno Jungang-daero, Hyeonpung-eup Dalseong-gun Daegu 42988 Republic of Korea
| | - Monica Claire Flores
- Department of Energy Science & Engineering, Daegu Gyeongbuk Institute of Science & Technology (DGIST) 333 Techno Jungang-daero, Hyeonpung-eup Dalseong-gun Daegu 42988 Republic of Korea
| | - Abdul Razzaq
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus 1.5 km Defence Road, Off Raiwind Road Lahore 54000 Pakistan
| | - Young Seob Gwak
- Department of Physiology, College of Korean Medicine, Daegu Haany University 136 Sincheondong-ro, Suseong-gu Daegu 42158 Republic of Korea
| | - Danbi Ahn
- Department of Physiology, College of Korean Medicine, Daegu Haany University 136 Sincheondong-ro, Suseong-gu Daegu 42158 Republic of Korea
| | - Mi Seon Kim
- Clinical Trials Management Division, Pharmaceutical Safety Bureau, Ministry of Food and Drug Safety Cheongju-si Chungcheongbuk-do Republic of Korea
| | - Ogan Gurel
- College of Transdisciplinary Studies, Daegu Gyeongbuk Institute of Science & Technology (DGIST) 333 Techno Jungang-daero, Hyeonpung-eup Dalseong-gun Daegu 42988 Republic of Korea
| | - Bong Hyo Lee
- Department of Acupuncture, Moxibustion, and Acupoint, College of Korean Medicine, Daegu Haany University 136 Sincheondong-ro, Suseong-gu Daegu 42158 Republic of Korea
| | - Su-Il In
- Department of Energy Science & Engineering, Daegu Gyeongbuk Institute of Science & Technology (DGIST) 333 Techno Jungang-daero, Hyeonpung-eup Dalseong-gun Daegu 42988 Republic of Korea
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14
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Xu Z, Xu J, Yang W, Lin H, Ruan G. Remote neurostimulation with physical fields at cellular level enabled by nanomaterials: Toward medical applications. APL Bioeng 2020; 4:040901. [PMID: 33195958 PMCID: PMC7647612 DOI: 10.1063/5.0022206] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 10/23/2020] [Indexed: 12/29/2022] Open
Abstract
Most neurological diseases have no cure today; innovations in neurotechnology are in urgent need. Nanomaterial-based remote neurostimulation with physical fields (NNSPs) is an emerging class of neurotechnologies that has generated tremendous interest in recent years. This perspective focuses on the clinical translation of this new class of neurotechnologies, an issue that so far has not received enough attention. We outline the major barriers in their clinical translation. We highlight our recent efforts to tackle these translational barriers, with a focus on the biological delivery problem. In particular, for the first time, we have shown that it is feasible to use noninvasive brain delivery to generate significant physiological responses in living animals by NNSP. However, much more work is needed to overcome the translational barriers.
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Affiliation(s)
| | | | | | | | - Gang Ruan
- Author to whom correspondence should be addressed:
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15
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Damnjanovic R, Bazard P, Frisina RD, Bhethanabotla VR. Hybrid Electro-Plasmonic Neural Stimulation with Visible-Light-Sensitive Gold Nanoparticles. ACS NANO 2020; 14:10917-10928. [PMID: 32603090 DOI: 10.1021/acsnano.0c00722] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Biomedical prosthetics utilizing electrical stimulation have limited, effective spatial resolution due to spread of electrical currents to surrounding tissue, causing nonselective stimulation. So, precise spatial resolution is not possible for traditional neural prosthetic devices, such as cochlear implants. More recently, alternative methods utilize optical stimulation, mainly infrared, sometimes paired with nanotechnology for stimulating action potentials. Infrared stimulation has its own drawbacks, as it may cause collateral heating of surrounding tissue. In previous work, we employed a plasmonic method for stimulation of an electrically excitable neuroblastoma cell line, which had limited success. Here, we report the development of a hybrid electro-plasmonic stimulation platform for spatially and temporally precise neural excitation to address the above deficiencies. Primary trigeminal neurons were costimulated in vitro in a whole-cell patch-clamp configuration with subthreshold-level short-duration (1-5 ms) electrical and visible light pulses (1-5 ms). The visible light pulses were aimed at a gold-nanoparticle-coated nanoelectrode placed alongside the neuron, within 2 μm distance. Membrane action potentials were recorded with a 3-fold higher success rate and 5-fold better poststimulation cell recovery rate than with pure optical stimulation alone. Also, electrical stimulus current input was being reduced by up to 40%. The subthreshold levels of electrical stimuli in conjunction with visible light (532 nm) reliably triggered trains of action potentials. This single-cell hybrid activation was reliable and repeatable, without any damage as observed with pure optical stimulation. This work represents an empirical cellular study of the membrane action potential response produced by the cultured primary sensory trigeminal neurons when costimulated with plasmonic and electrical (hybrid) stimulation. Our hybrid neurostimulation method can be used toward development of high-acuity neural modulation prosthetic devices, tunable for individual needs, which would qualify as a preferred alternative over traditional electrical stimulation technologies.
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16
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Yu Y, Yang X, Reghu S, Kaul SC, Wadhwa R, Miyako E. Photothermogenetic inhibition of cancer stemness by near-infrared-light-activatable nanocomplexes. Nat Commun 2020; 11:4117. [PMID: 32807785 PMCID: PMC7431860 DOI: 10.1038/s41467-020-17768-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 07/17/2020] [Indexed: 02/06/2023] Open
Abstract
Strategies for eradicating cancer stem cells (CSCs) are urgently required because CSCs are resistant to anticancer drugs and cause treatment failure, relapse and metastasis. Here, we show that photoactive functional nanocarbon complexes exhibit unique characteristics, such as homogeneous particle morphology, high water dispersibility, powerful photothermal conversion, rapid photoresponsivity and excellent photothermal stability. In addition, the present biologically permeable second near-infrared (NIR-II) light-induced nanocomplexes photo-thermally trigger calcium influx into target cells overexpressing the transient receptor potential vanilloid family type 2 (TRPV2). This combination of nanomaterial design and genetic engineering effectively eliminates cancer cells and suppresses stemness of cancer cells in vitro and in vivo. Finally, in molecular analyses of mechanisms, we show that inhibition of cancer stemness involves calcium-mediated dysregulation of the Wnt/β-catenin signalling pathway. The present technological concept may lead to innovative therapies to address the global issue of refractory cancers. Cancer stem cells (CSCs) are known to induce chemotherapy resistance, and cause tumour relapse and metastasis. Here, the authors develop photoactive nanocarbon complexes with second near-infrared photothermal ability to target cancer cells overexpressing the receptor TRPV2 and show it to suppress CSCs through dysregulation of the Wnt/β-catenin signalling pathway.
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Affiliation(s)
- Yue Yu
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan.,Biomedical Research Institute, National Institute of Advanced Industrial Science & Technology (AIST), Ikeda, 563-8577, Japan
| | - Xi Yang
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan
| | - Sheethal Reghu
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan
| | - Sunil C Kaul
- AIST-INDIA DAILAB, DBT-AIST International Center for Translational & Environmental Research (DAICENTER), Cellular and Molecular Biotechnology Research Institute, AIST, Tsukuba, 305-8565, Japan
| | - Renu Wadhwa
- AIST-INDIA DAILAB, DBT-AIST International Center for Translational & Environmental Research (DAICENTER), Cellular and Molecular Biotechnology Research Institute, AIST, Tsukuba, 305-8565, Japan
| | - Eijiro Miyako
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan.
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17
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Maya-Vetencourt JF, Manfredi G, Mete M, Colombo E, Bramini M, Di Marco S, Shmal D, Mantero G, Dipalo M, Rocchi A, DiFrancesco ML, Papaleo ED, Russo A, Barsotti J, Eleftheriou C, Di Maria F, Cossu V, Piazza F, Emionite L, Ticconi F, Marini C, Sambuceti G, Pertile G, Lanzani G, Benfenati F. Subretinally injected semiconducting polymer nanoparticles rescue vision in a rat model of retinal dystrophy. NATURE NANOTECHNOLOGY 2020; 15:698-708. [PMID: 32601447 DOI: 10.1038/s41565-020-0696-3] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 04/20/2020] [Indexed: 05/21/2023]
Abstract
Inherited retinal dystrophies and late-stage age-related macular degeneration, for which treatments remain limited, are among the most prevalent causes of legal blindness. Retinal prostheses have been developed to stimulate the inner retinal network; however, lack of sensitivity and resolution, and the need for wiring or external cameras, have limited their application. Here we show that conjugated polymer nanoparticles (P3HT NPs) mediate light-evoked stimulation of retinal neurons and persistently rescue visual functions when subretinally injected in a rat model of retinitis pigmentosa. P3HT NPs spread out over the entire subretinal space and promote light-dependent activation of spared inner retinal neurons, recovering subcortical, cortical and behavioural visual responses in the absence of trophic effects or retinal inflammation. By conferring sustained light sensitivity to degenerate retinas after a single injection, and with the potential for high spatial resolution, P3HT NPs provide a new avenue in retinal prosthetics with potential applications not only in retinitis pigmentosa, but also in age-related macular degeneration.
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Affiliation(s)
- José Fernando Maya-Vetencourt
- Centre for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Biology, University of Pisa, Pisa, Italy
| | - Giovanni Manfredi
- Centre for Nano Science and Technology, Istituto Italiano di Tecnologia, Milan, Italy
| | - Maurizio Mete
- Ophthalmology Department, IRCCS Ospedale Sacro Cuore Don Calabria, Negrar, Italy
| | - Elisabetta Colombo
- Centre for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Mattia Bramini
- Centre for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genoa, Italy
- Department of Applied Physics, University of Granada, Granada, Spain
| | - Stefano Di Marco
- Centre for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Dmytro Shmal
- Centre for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genoa, Italy
| | - Giulia Mantero
- Centre for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genoa, Italy
| | - Michele Dipalo
- Plasmon Nanotechnologies, Istituto Italiano di Tecnologia, Genoa, Italy
| | - Anna Rocchi
- Centre for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Mattia L DiFrancesco
- Centre for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genoa, Italy
| | - Ermanno D Papaleo
- Centre for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genoa, Italy
| | - Angela Russo
- Ophthalmology Department, IRCCS Ospedale Sacro Cuore Don Calabria, Negrar, Italy
| | - Jonathan Barsotti
- Centre for Nano Science and Technology, Istituto Italiano di Tecnologia, Milan, Italy
| | - Cyril Eleftheriou
- Centre for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genoa, Italy
- Departments of Ophthalmology and Neurology, Weil Medical College of Cornell University, White Plains, NY, USA
| | - Francesca Di Maria
- CNR Institute of Organic Synthesis and Photoreactivity (ISOF), Bologna, Italy
| | - Vanessa Cossu
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Health Science, Nuclear Medicine, University of Genoa, Genoa, Italy
| | | | | | - Flavia Ticconi
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Health Science, Nuclear Medicine, University of Genoa, Genoa, Italy
- Department of Oncohematology, Nuclear Medicine Unit, Faenza Hospital, Faenza, Italy
| | - Cecilia Marini
- CNR Institute of Bioimages and Molecular Physiology, Milan (Genoa Section), Genoa, Italy
| | - Gianmario Sambuceti
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Health Science, Nuclear Medicine, University of Genoa, Genoa, Italy
| | - Grazia Pertile
- Ophthalmology Department, IRCCS Ospedale Sacro Cuore Don Calabria, Negrar, Italy
| | - Guglielmo Lanzani
- Centre for Nano Science and Technology, Istituto Italiano di Tecnologia, Milan, Italy.
- Department of Physics, Politecnico di Milano, Milan, Italy.
| | - Fabio Benfenati
- Centre for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genoa, Italy.
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy.
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18
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Mohapatra SS, Frisina RD, Mohapatra S, Sneed KB, Markoutsa E, Wang T, Dutta R, Damnjanovic R, Phan MH, Denmark DJ, Biswal MR, McGill AR, Green R, Howell M, Ghosh P, Gonzalez A, Ahmed NT, Borresen B, Farmer M, Gaeta M, Sharma K, Bouchard C, Gamboni D, Martin J, Tolve B, Singh M, Judy JW, Li C, Santra S, Daunert S, Zeynaloo E, Gelfand RM, Lenhert S, McLamore ES, Xiang D, Morgan V, Friedersdorf LE, Lal R, Webster TJ, Hoogerheide DP, Nguyen TD, D’Souza MJ, Çulha M, Kondiah PPD, Martin DK. Advances in Translational Nanotechnology: Challenges and Opportunities. APPLIED SCIENCES (BASEL, SWITZERLAND) 2020; 10:10.3390/app10144881. [PMID: 38486792 PMCID: PMC10938472 DOI: 10.3390/app10144881] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The burgeoning field of nanotechnology aims to create and deploy nanoscale structures, devices, and systems with novel, size-dependent properties and functions. The nanotechnology revolution has sparked radically new technologies and strategies across all scientific disciplines, with nanotechnology now applied to virtually every area of research and development in the US and globally. NanoFlorida was founded to create a forum for scientific exchange, promote networking among nanoscientists, encourage collaborative research efforts across institutions, forge strong industry-academia partnerships in nanoscience, and showcase the contributions of students and trainees in nanotechnology fields. The 2019 NanoFlorida International Conference expanded this vision to emphasize national and international participation, with a focus on advances made in translating nanotechnology. This review highlights notable research in the areas of engineering especially in optics, photonics and plasmonics and electronics; biomedical devices, nano-biotechnology, nanotherapeutics including both experimental nanotherapies and nanovaccines; nano-diagnostics and -theranostics; nano-enabled drug discovery platforms; tissue engineering, bioprinting, and environmental nanotechnology, as well as challenges and directions for future research.
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Affiliation(s)
- Shyam S. Mohapatra
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
- Departments of Molecular Medicine and Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- James A. Haley Veterans Hospital, Tampa, FL 33612, USA
| | - Robert D. Frisina
- Department of Chemical and Biomedical Engineering and Global Center for Hearing and Speech Research, University of South Florida, Tampa, FL 33620, USA
| | - Subhra Mohapatra
- Departments of Molecular Medicine and Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- James A. Haley Veterans Hospital, Tampa, FL 33612, USA
| | - Kevin B. Sneed
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Eleni Markoutsa
- Departments of Molecular Medicine and Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- James A. Haley Veterans Hospital, Tampa, FL 33612, USA
| | - Tao Wang
- Departments of Molecular Medicine and Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- James A. Haley Veterans Hospital, Tampa, FL 33612, USA
| | - Rinku Dutta
- Departments of Molecular Medicine and Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- James A. Haley Veterans Hospital, Tampa, FL 33612, USA
| | - Ratka Damnjanovic
- Department of Chemical and Biomedical Engineering and Global Center for Hearing and Speech Research, University of South Florida, Tampa, FL 33620, USA
| | - Manh-Huong Phan
- Department of Physics, University of South Florida, Tampa, FL 33620, USA
| | - Daniel J. Denmark
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Manas R. Biswal
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Andrew R. McGill
- Departments of Molecular Medicine and Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- James A. Haley Veterans Hospital, Tampa, FL 33612, USA
| | - Ryan Green
- Departments of Molecular Medicine and Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- James A. Haley Veterans Hospital, Tampa, FL 33612, USA
| | - Mark Howell
- Departments of Molecular Medicine and Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- James A. Haley Veterans Hospital, Tampa, FL 33612, USA
| | - Payal Ghosh
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Alejandro Gonzalez
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Nadia Tasnim Ahmed
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Brittney Borresen
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Mitchell Farmer
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Melissa Gaeta
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Krishna Sharma
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Christen Bouchard
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Danielle Gamboni
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Jamie Martin
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Bianca Tolve
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Mandip Singh
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA
| | - Jack W. Judy
- University of Florida Department of Electrical and Computer Engineering and Nanoscience Institute for Medical and Engineering Technology, Gainesville, FL 32611, USA
| | - Chenzhong Li
- Department of Biomedical Engineering, Florida International University, Miami, FL 33174, USA
| | - Swadeshmukul Santra
- NanoScience Technology Center, University of Central Florida, Burnett School of Biomedical Sciences, Department of Chemistry and Department of Materials Science and Engineering, Orlando, FL 32826, USA
| | - Sylvia Daunert
- Department of Biochemistry and Molecular Biology, University of Miami, Miller School of Medicine, and Department of Chemistry, Miami, FL 33124, USA
| | - Elnaz Zeynaloo
- Department of Biochemistry and Molecular Biology, University of Miami, Miller School of Medicine, and Department of Chemistry, Miami, FL 33124, USA
| | - Ryan M. Gelfand
- School of Science and Engineering, Tulane University, New Orleans, LA 70118, USA
| | - Steven Lenhert
- Department of Biological Science, Florida State University, Tallahassee, FL 32306, USA
| | - Eric S. McLamore
- Agricultural and Biological Engineering, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32603, USA
| | - Dong Xiang
- Agricultural and Biological Engineering, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32603, USA
| | - Victoria Morgan
- Agricultural and Biological Engineering, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32603, USA
| | | | - Ratnesh Lal
- Center for Excellence in Nanomedicine and Engineering, University of California San Diego, IEM, La Jolla, CA 92093, USA
| | - Thomas J. Webster
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA
| | - David P. Hoogerheide
- National Institute of Standards and Technology, Center for Neutron Research, Gaithersburg, MD 20899, USA
| | - Thanh Duc Nguyen
- Department of Mechanical Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Martin J. D’Souza
- Department of Pharmaceutical Sciences, Nanotechnology Laboratory, Mercer University, Atlanta, GA 30341, USA
| | - Mustafa Çulha
- Knight Cancer Institute, Cancer Early Detection Advanced Research (CEDAR), Oregon Health and Science University, Portland, OR 97239, USA
| | - Pierre P. D. Kondiah
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Donald K. Martin
- Faculté de Pharmacie and TIMC-IMAG (UMR 5525), University Grenoble Alpes, SyNaBi, 38000 Grenoble, France
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19
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Ferretti AM, Zappia S, Scavia G, Giovanella U, Villafiorita-Monteleone F, Destri S. Surfactant-free miniemulsion approach for low band gap rod-coil block copolymer water-processable nanoparticle fabrication: Film preparation and morphological characterization. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.04.055] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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20
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Yoo S, Park JH, Nam Y. Single-Cell Photothermal Neuromodulation for Functional Mapping of Neural Networks. ACS NANO 2019; 13:544-551. [PMID: 30592595 DOI: 10.1021/acsnano.8b07277] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Photothermal neuromodulation is one of the emerging technologies being developed for neuroscience studies because it can provide minimally invasive control of neural activity in the deep brain with submillimeter precision. However, single-cell modulation without genetic modification still remains a challenge, hindering its path to broad applications. Here, we introduce a nanoplasmonic approach to inhibit single-neural activity with high temporal resolution. Low-intensity near-infrared light was focused at the single cell size on a gold-nanorod-integrated microelectrode array platform, generating a photothermal effect underneath a target neuron for photothermal stimulation. We found that the photothermal stimulation modulates the spontaneous activity of a target neuron in an inhibitory manner. Single neuron inhibition was fast and highly reliable without thermal damage, and it can induce changes in network firing patterns, potentially suggesting their application for in vivo circuit modulation and functional connectomes.
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21
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Bossio C, Abdel Aziz I, Tullii G, Zucchetti E, Debellis D, Zangoli M, Di Maria F, Lanzani G, Antognazza MR. Photocatalytic Activity of Polymer Nanoparticles Modulates Intracellular Calcium Dynamics and Reactive Oxygen Species in HEK-293 Cells. Front Bioeng Biotechnol 2018; 6:114. [PMID: 30211158 PMCID: PMC6119808 DOI: 10.3389/fbioe.2018.00114] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 07/20/2018] [Indexed: 11/13/2022] Open
Abstract
Optical modulation of living cells activity by light-absorbing exogenous materials is gaining increasing interest, due to the possibility both to achieve high spatial and temporal resolution with a minimally invasive and reversible technique and to avoid the need of viral transfection with light-sensitive proteins. In this context, conjugated polymers represent ideal candidates for photo-transduction, due to their excellent optoelectronic and biocompatibility properties. In this work, we demonstrate that organic polymer nanoparticles, based on poly(3-hexylthiophene) conjugated polymer, establish a functional interaction with an in vitro cell model (Human Embryonic Kidney cells, HEK-293). They display photocatalytic activity in aqueous environment and, once internalized within the cell cytosol, efficiently generate reactive oxygen species (ROS) upon visible light excitation, without affecting cell viability. Interestingly, light-activated ROS generation deterministically triggers modulation of intracellular calcium ion flux, successfully controlled at the single cell level. In perspective, the capability of polymer NPs to produce ROS and to modulate Ca2+ dynamics by illumination on-demand, at non-toxic levels, may open the path to the study of biological processes with a gene-less approach and unprecedented spatio-temporal resolution, as well as to the development of new biotechnology tools for cell optical modulation.
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Affiliation(s)
- Caterina Bossio
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, Milan, Italy
| | - Ilaria Abdel Aziz
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, Milan, Italy
- Dipartimento di Fisica, Politecnico di Milano, Milan, Italy
| | - Gabriele Tullii
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, Milan, Italy
- Dipartimento di Fisica, Politecnico di Milano, Milan, Italy
| | - Elena Zucchetti
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, Milan, Italy
- Dipartimento di Fisica, Politecnico di Milano, Milan, Italy
| | - Doriana Debellis
- Electron Microscopy Facility, Istituto Italiano di Tecnologia, Genova, Italy
| | - Mattia Zangoli
- Institute for Organic Synthesis and Photoreactivity, CNR-ISOF, Bologna, Italy
| | - Francesca Di Maria
- Institute for Organic Synthesis and Photoreactivity, CNR-ISOF, Bologna, Italy
| | - Guglielmo Lanzani
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, Milan, Italy
- Dipartimento di Fisica, Politecnico di Milano, Milan, Italy
| | - Maria Rosa Antognazza
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, Milan, Italy
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22
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Low-intensity ultrasound neuromodulation: An overview of mechanisms and emerging human applications. Brain Stimul 2018; 11:1209-1217. [PMID: 30166265 DOI: 10.1016/j.brs.2018.08.013] [Citation(s) in RCA: 152] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 07/26/2018] [Accepted: 08/19/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND There is an emerging need for noninvasive neuromodulation techniques to improve patient outcomes while minimizing adverse events and morbidity. Low-intensity focused ultrasound (LIFUS) is gaining traction as a non-surgical experimental approach of modulating brain activity. Several LIFUS sonication parameters have been found to potentiate neural firing, suppress cortical and epileptic discharges, and alter behavior when delivered to cortical and subcortical mammalian brain regions. OBJECTIVE This review introduces the elements of an effective sonication protocol and summarizes key preclinical studies on LIFUS as a neuromodulation modality. The state of the art in human ultrasound neuromodulation is then comprehensively summarized, and current hypotheses regarding the underlying mechanism of action on neural activity are presented. METHODS Peer-reviewed literature on human ultrasound neuromodulation was obtained by searching several electronic databases. The abstracts of all reports were read and publications which examined low-intensity transcranial ultrasound applied to human subjects were selected for review. RESULTS LIFUS can noninvasively influence human brain activity by suppressing cortical evoked potentials, influencing cortical oscillatory dynamics, and altering outcomes of sensory/motor tasks compared to sham sonication. Proposed mechanisms include cavitation, direct effects on neural ion channels, and plasma membrane deformation. CONCLUSIONS Though optimal sonication paradigms and transcranial delivery methods are still being established, future applications may include non-invasive human brain mapping experiments, and nonsurgical treatments for functional neurological disorders.
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23
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Di Maria F, Lodola F, Zucchetti E, Benfenati F, Lanzani G. The evolution of artificial light actuators in living systems: from planar to nanostructured interfaces. Chem Soc Rev 2018; 47:4757-4780. [PMID: 29663003 DOI: 10.1039/c7cs00860k] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Artificially enhancing light sensitivity in living cells allows control of neuronal paths or vital functions avoiding the wiring associated with the use of stimulation electrodes. Many possible strategies can be adopted for reaching this goal, including the direct photoexcitation of biological matter, the genetic modification of cells or the use of opto-bio interfaces. In this review we describe different light actuators based on both inorganic and organic semiconductors, from planar abiotic/biotic interfaces to nanoparticles, that allow transduction of a light signal into a signal which in turn affects the biological activity of the hosting system. In particular, we will focus on the application of thiophene-based materials which, thanks to their unique chemical-physical properties, geometrical adaptability, great biocompatibility and stability, have allowed the development of a new generation of fully organic light actuators for in vivo applications.
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24
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Young AT, Cornwell N, Daniele MA. Neuro-Nano Interfaces: Utilizing Nano-Coatings and Nanoparticles to Enable Next-Generation Electrophysiological Recording, Neural Stimulation, and Biochemical Modulation. ADVANCED FUNCTIONAL MATERIALS 2018; 28:1700239. [PMID: 33867903 PMCID: PMC8049593 DOI: 10.1002/adfm.201700239] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Neural interfaces provide a window into the workings of the nervous system-enabling both biosignal recording and modulation. Traditionally, neural interfaces have been restricted to implanted electrodes to record or modulate electrical activity of the nervous system. Although these electrode systems are both mechanically and operationally robust, they have limited utility due to the resultant macroscale damage from invasive implantation. For this reason, novel nanomaterials are being investigated to enable new strategies to chronically interact with the nervous system at both the cellular and network level. In this feature article, the use of nanomaterials to improve current electrophysiological interfaces, as well as enable new nano-interfaces to modulate neural activity via alternative mechanisms, such as remote transduction of electromagnetic fields are explored. Specifically, this article will review the current use of nanoparticle coatings to enhance electrode function, then an analysis of the cutting-edge, targeted nanoparticle technologies being utilized to interface with both the electrophysiological and biochemical behavior of the nervous system will be provided. Furthermore, an emerging, specialized-use case for neural interfaces will be presented: the modulation of the blood-brain barrier.
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Affiliation(s)
- Ashlyn T Young
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, and North Carolina State University, 911 Oval Dr., Raleigh, NC 27695, USA
| | - Neil Cornwell
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, and North Carolina State University, 911 Oval Dr., Raleigh, NC 27695, USA
| | - Michael A Daniele
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, and North Carolina State University, 911 Oval Dr., Raleigh, NC 27695, USA
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25
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Tian B, Xu S, Rogers JA, Cestellos-Blanco S, Yang P, Carvalho-de-Souza JL, Bezanilla F, Liu J, Bao Z, Hjort M, Cao Y, Melosh N, Lanzani G, Benfenati F, Galli G, Gygi F, Kautz R, Gorodetsky AA, Kim SS, Lu TK, Anikeeva P, Cifra M, Krivosudský O, Havelka D, Jiang Y. Roadmap on semiconductor-cell biointerfaces. Phys Biol 2018; 15:031002. [PMID: 29205173 PMCID: PMC6599646 DOI: 10.1088/1478-3975/aa9f34] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This roadmap outlines the role semiconductor-based materials play in understanding the complex biophysical dynamics at multiple length scales, as well as the design and implementation of next-generation electronic, optoelectronic, and mechanical devices for biointerfaces. The roadmap emphasizes the advantages of semiconductor building blocks in interfacing, monitoring, and manipulating the activity of biological components, and discusses the possibility of using active semiconductor-cell interfaces for discovering new signaling processes in the biological world.
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Affiliation(s)
- Bozhi Tian
- Department of Chemistry, University of Chicago, Chicago, IL 60637, United States of America
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26
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Mora B, Perez-Valle A, Redondo C, Boyano MD, Morales R. Cost-Effective Design of High-Magnetic Moment Nanostructures for Biotechnological Applications. ACS APPLIED MATERIALS & INTERFACES 2018; 10:8165-8172. [PMID: 29390182 DOI: 10.1021/acsami.7b16779] [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] [Indexed: 06/07/2023]
Abstract
Disk-shaped magnetic nanostructures present distinctive features for novel biomedical applications. Fine tuning of geometry and dimensions is demanded to evaluate efficiency and capability of such applications. This work addresses a cost-effective, versatile, and maskless design of biocompatible high-magnetic moment elements at the sub-micrometer scale. Advantages and disadvantages of two high throughput fabrication routes using interference lithography were evaluated. Detrimental steps such as the release process of nanodisks into aqueous solution were optimized to fully preserve the magnetic properties of the material. Then, cell viability of the nanostructures was assessed in primary melanoma cultures. No toxicity effects were observed, validating the potential of these nanostructures in biotechnological applications. The present methodology will allow the fabrication of magnetic nanoelements at the sub-micrometer scale with unique spin configurations, such as vortex state, synthetic antiferromagnets, or exchange-coupled heterostructures, and their use in biomedical techniques that require a remote actuation or a magneto-electric response.
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Affiliation(s)
| | | | | | - Maria Dolores Boyano
- Department of Cell Biology and Histology , University of the Basque Country UPV/EHU, and Biocruces Health Research Institute , 48903 Barakaldo , Spain
| | - Rafael Morales
- IKERBASQUE, Basque Foundation for Science , 48011 Bilbao , Spain
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27
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Benfenati F, Lanzani G. New technologies for developing second generation retinal prostheses. Lab Anim (NY) 2018; 47:71-75. [PMID: 29483694 DOI: 10.1038/s41684-018-0003-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/09/2018] [Indexed: 12/25/2022]
Abstract
Inherited or age-dependent retinal dystrophies such as Retinitis pigmentosa (RP) and macular degeneration (MD) are among the most prevalent causes of blindness. Despite enormous efforts, no established pharmacological treatment to prevent or cure photoreceptor degeneration has been identified. Given the relative survival of the inner retina, attempts have been made to restore vision with optogenetics or with retinal neuroprostheses to allow light-dependent stimulation of the inner retinal network. While microelectrode and photovoltaic devices based on inorganic technologies have been proposed and in many cases implanted in RP patients, a new generation of prosthetics based on organic molecules, such as organic photoswitches and conjugated polymers, is demonstrating an unexpected potential for visual rescue and intimate interactions with functioning tissue. Organic devices are starting a new era of tissue electronics, in which light-sensitive molecules and live tissues integrate and tightly interact, producing a new ecosystem of organic prosthetics and intelligent biotic/abiotic interfaces. In addition to the retina, the applications of these interfaces might be extended in the future to other biomedical fields.
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Affiliation(s)
- Fabio Benfenati
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genoa, Italy.
| | - Guglielmo Lanzani
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Milan, Italy
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28
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SiO 2 nanoparticles modulate the electrical activity of neuroendocrine cells without exerting genomic effects. Sci Rep 2018; 8:2760. [PMID: 29426889 PMCID: PMC5807366 DOI: 10.1038/s41598-018-21157-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 01/15/2018] [Indexed: 01/21/2023] Open
Abstract
Engineered silica nanoparticles (NPs) have attracted increasing interest in several applications, and particularly in the field of nanomedicine, thanks to the high biocompatibility of this material. For their optimal and controlled use, the understanding of the mechanisms elicited by their interaction with the biological target is a prerequisite, especially when dealing with cells particularly vulnerable to environmental stimuli like neurons. Here we have combined different electrophysiological approaches (both at the single cell and at the population level) with a genomic screening in order to analyze, in GT1-7 neuroendocrine cells, the impact of SiO2 NPs (50 ± 3 nm in diameter) on electrical activity and gene expression, providing a detailed analysis of the impact of a nanoparticle on neuronal excitability. We find that 20 µg mL−1 NPs induce depolarization of the membrane potential, with a modulation of the firing of action potentials. Recordings of electrical activity with multielectrode arrays provide further evidence that the NPs evoke a temporary increase in firing frequency, without affecting the functional behavior on a time scale of hours. Finally, NPs incubation up to 24 hours does not induce any change in gene expression.
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29
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Borzenkov M, Chirico G, Collini M, Pallavicini P. Gold Nanoparticles for Tissue Engineering. ENVIRONMENTAL NANOTECHNOLOGY 2018. [DOI: 10.1007/978-3-319-76090-2_10] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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30
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Genchi GG, Marino A, Tapeinos C, Ciofani G. Smart Materials Meet Multifunctional Biomedical Devices: Current and Prospective Implications for Nanomedicine. Front Bioeng Biotechnol 2017; 5:80. [PMID: 29326928 PMCID: PMC5741658 DOI: 10.3389/fbioe.2017.00080] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 12/05/2017] [Indexed: 12/12/2022] Open
Abstract
With the increasing advances in the fabrication and in monitoring approaches of nanotechnology devices, novel materials are being synthesized and tested for the interaction with biological environments. Among them, smart materials in particular provide versatile and dynamically tunable platforms for the investigation and manipulation of several biological activities with very low invasiveness in hardly accessible anatomical districts. In the following, we will briefly recall recent examples of nanotechnology-based materials that can be remotely activated and controlled through different sources of energy, such as electromagnetic fields or ultrasounds, for their relevance to both basic science investigations and translational nanomedicine. Moreover, we will introduce some examples of hybrid materials showing mutually beneficial components for the development of multifunctional devices, able to simultaneously perform duties like imaging, tissue targeting, drug delivery, and redox state control. Finally, we will highlight challenging perspectives for the development of theranostic agents (merging diagnostic and therapeutic functionalities), underlining open questions for these smart nanotechnology-based devices to be made readily available to the patients in need.
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Affiliation(s)
| | - Attilio Marino
- Smart Bio-Interfaces, Istituto Italiano di Tecnologia, Pontedera, Italy
| | - Christos Tapeinos
- Smart Bio-Interfaces, Istituto Italiano di Tecnologia, Pontedera, Italy
| | - Gianni Ciofani
- Smart Bio-Interfaces, Istituto Italiano di Tecnologia, Pontedera, Italy
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Torino, Italy
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31
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Bazard P, Frisina RD, Walton JP, Bhethanabotla VR. Nanoparticle-based Plasmonic Transduction for Modulation of Electrically Excitable Cells. Sci Rep 2017; 7:7803. [PMID: 28798342 PMCID: PMC5552804 DOI: 10.1038/s41598-017-08141-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 07/05/2017] [Indexed: 11/11/2022] Open
Abstract
There is a compelling need for the development of new sensory and neural prosthetic devices which are capable of more precise point stimulation. Current prosthetic devices suffer from the limitation of low spatial resolution due to the non-specific stimulation characteristics of electrical stimulation, i.e., the spread of electric fields generated. We present a visible light stimulation method for modulating the firing patterns of electrically-excitable cells using surface plasmon resonance phenomena. In in-vitro studies using gold (Au) nanoparticle-coated nanoelectrodes, we show that this method (substrate coated with nanoparticles) has the potential for incorporating this new technology into neural stimulation prosthetics, such as cochlear implants for the deaf, with very high spatial resolution. Au nanoparticles (NPs) were coated on micropipettes using aminosilane linkers; and these micropipettes were used for stimulating and inhibiting the action potential firing patterns of SH-SY5Y human neuroblastoma cells and neonatal cardiomyocytes. Our findings pave the way for development of biomedical implants and neural testing devices using nanoelectrodes capable of temporally and spatially precise excitation and inhibition of electrically-excitable cellular activity.
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Affiliation(s)
- Parveen Bazard
- Department of Chemical and Biomedical Engineering, College of Engineering, University of South Florida, Tampa, FL-33620, USA.,Global Center of Hearing and Speech Research, University of South Florida, Tampa, FL-33612, USA
| | - Robert D Frisina
- Department of Chemical and Biomedical Engineering, College of Engineering, University of South Florida, Tampa, FL-33620, USA.,Department of Communication Sciences and Disorders, College of Behavioral & Community Sciences, University of South Florida, Tampa, FL-33620, USA.,Global Center of Hearing and Speech Research, University of South Florida, Tampa, FL-33612, USA
| | - Joseph P Walton
- Department of Chemical and Biomedical Engineering, College of Engineering, University of South Florida, Tampa, FL-33620, USA.,Department of Communication Sciences and Disorders, College of Behavioral & Community Sciences, University of South Florida, Tampa, FL-33620, USA.,Global Center of Hearing and Speech Research, University of South Florida, Tampa, FL-33612, USA
| | - Venkat R Bhethanabotla
- Department of Chemical and Biomedical Engineering, College of Engineering, University of South Florida, Tampa, FL-33620, USA. .,Global Center of Hearing and Speech Research, University of South Florida, Tampa, FL-33612, USA.
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32
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Gold Nanoparticles for Modulating Neuronal Behavior. NANOMATERIALS 2017; 7:nano7040092. [PMID: 28441776 PMCID: PMC5408184 DOI: 10.3390/nano7040092] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 04/19/2017] [Accepted: 04/19/2017] [Indexed: 11/30/2022]
Abstract
Understanding the detailed functioning and pathophysiology of the brain and the nervous system continues to challenge the scientific community, particularly in terms of scaling up techniques for monitoring and interfacing with complex 3D networks. Nanotechnology has the potential to support this scaling up, where the eventual goal would be to address individual nerve cells within functional units of both the central and peripheral nervous system. Gold nanoparticles provide a variety of physical and chemical properties that have attracted attention as a light-activated nanoscale neuronal interface. This review provides a critical overview of the photothermal and photomechanical properties of chemically functionalized gold nanoparticles that have been exploited to trigger a range of biological responses in neuronal tissues, including modulation of electrical activity and nerve regeneration. The prospects and challenges for further development are also discussed.
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33
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Tortiglione C, Antognazza MR, Tino A, Bossio C, Marchesano V, Bauduin A, Zangoli M, Morata SV, Lanzani G. Semiconducting polymers are light nanotransducers in eyeless animals. SCIENCE ADVANCES 2017; 3:e1601699. [PMID: 28138549 PMCID: PMC5266477 DOI: 10.1126/sciadv.1601699] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 12/08/2016] [Indexed: 05/17/2023]
Abstract
Current implant technology uses electrical signals at the electrode-neural interface. This rather invasive approach presents important issues in terms of performance, tolerability, and overall safety of the implants. Inducing light sensitivity in living organisms is an alternative method that provides groundbreaking opportunities in neuroscience. Optogenetics is a spectacular demonstration of this, yet is limited by the viral transfection of exogenous genetic material. We propose a nongenetic approach toward light control of biological functions in living animals. We show that nanoparticles based on poly(3-hexylthiophene) can be internalized in eyeless freshwater polyps and are fully biocompatible. Under light, the nanoparticles modify the light response of the animals, at two different levels: (i) they enhance the contraction events of the animal body, and (ii) they change the transcriptional activation of the opsin3-like gene. This suggests the establishment of a seamless and biomimetic interface between the living organism and the polymer nanoparticles that behave as light nanotransducers, coping with or amplifying the function of primitive photoreceptors.
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Affiliation(s)
- Claudia Tortiglione
- Istituto di Scienze Applicate e Sistemi Intelligenti “Eduardo Caianiello,” Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - Maria Rosa Antognazza
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy
| | - Angela Tino
- Istituto di Scienze Applicate e Sistemi Intelligenti “Eduardo Caianiello,” Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - Caterina Bossio
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy
| | - Valentina Marchesano
- Istituto di Scienze Applicate e Sistemi Intelligenti “Eduardo Caianiello,” Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - Antonella Bauduin
- Istituto di Scienze Applicate e Sistemi Intelligenti “Eduardo Caianiello,” Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - Mattia Zangoli
- Istituto per la Sintesi Organica e la Fotoreattività, Consiglio Nazionale delle Ricerche, Via P. Gobetti 101, 40129 Bologna, Italy
| | - Susana Vaquero Morata
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy
| | - Guglielmo Lanzani
- 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 Leonardo da Vinci 32, 20133 Milano, Italy
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34
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Zucchetti E, Zangoli M, Bargigia I, Bossio C, Di Maria F, Barbarella G, D'Andrea C, Lanzani G, Antognazza MR. Poly(3-hexylthiophene) nanoparticles for biophotonics: study of the mutual interaction with living cells. J Mater Chem B 2017; 5:565-574. [DOI: 10.1039/c6tb02047j] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Poly(3-hexylthiophene) nanoparticles interfacing with living cells: a new tool for biophotonics applications.
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Affiliation(s)
- Elena Zucchetti
- Center for Nano Science and Technology@Polimi
- Istituto Italiano di Tecnologia
- 20133 Milano
- Italy
- Politecnico di Milano
| | - Mattia Zangoli
- Institute for Organic Synthesis and Photoreactivity
- CNR-ISOF
- 40129 Bologna
- Italy
| | - Ilaria Bargigia
- Center for Nano Science and Technology@Polimi
- Istituto Italiano di Tecnologia
- 20133 Milano
- Italy
| | - Caterina Bossio
- Center for Nano Science and Technology@Polimi
- Istituto Italiano di Tecnologia
- 20133 Milano
- Italy
| | - Francesca Di Maria
- Institute for Organic Synthesis and Photoreactivity
- CNR-ISOF
- 40129 Bologna
- Italy
| | - Giovanna Barbarella
- Institute for Organic Synthesis and Photoreactivity
- CNR-ISOF
- 40129 Bologna
- Italy
| | - Cosimo D'Andrea
- Center for Nano Science and Technology@Polimi
- Istituto Italiano di Tecnologia
- 20133 Milano
- Italy
- Politecnico di Milano
| | - Guglielmo Lanzani
- Center for Nano Science and Technology@Polimi
- Istituto Italiano di Tecnologia
- 20133 Milano
- Italy
- Politecnico di Milano
| | - Maria Rosa Antognazza
- Center for Nano Science and Technology@Polimi
- Istituto Italiano di Tecnologia
- 20133 Milano
- Italy
| |
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