1
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Cheng X, Li W, Wang Y, Weng K, Xing Y, Huang Y, Sheng X, Yao J, Zhang H, Li J. Highly Branched Au Superparticles as Efficient Photothermal Transducers for Optical Neuromodulation. ACS NANO 2024. [PMID: 39400203 DOI: 10.1021/acsnano.4c07163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2024]
Abstract
Precise neuromodulation is critical for interrogating cellular communication and treating neurological diseases. Nanoscale transducers have emerged as effective interfaces to exert photothermal effects and modulate neural activities with a high spatiotemporal resolution. Ideal materials for this application should possess strong light absorption, high photothermal conversion efficiency, and great biocompatibility for clinical translation. Here, we show that the structurally designed 3D Au superparticles with a highly branched morphology can be promising candidates for nongenetic and remote neuromodulation. The structure-induced blackbody-like absorption endows Au superparticles with photothermal conversion efficiency over 90%, much higher than that of conventional Au nanorods. With the biocompatible polydopamine ligands, Au superparticles can be readily interfaced with primary mouse hippocampal neurons and other cells and can photostimulate or inhibit their activities in both cell networks or with a single-cell resolution. These findings highlight the importance of structural designs as powerful tools to promote the performance of plasmonic materials in neuromodulation and related research of neuroscience and neuroengineering.
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Affiliation(s)
- Xinyu Cheng
- Department of Chemistry, Center for Bioanalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
| | - Wenjun Li
- Department of Chemistry, Center for Bioanalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
| | - Yinghan Wang
- School of Life Sciences, State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing 100084, China
| | - Kangkang Weng
- Department of Chemistry, Center for Bioanalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
- School of Optics and Photonics, Beijing Key Laboratory for Precision Optoelectronic Measurement Instrument and Technology, Beijing Institute of Technology, Beijing 100081, China
- Yangtze Delta Region Academy of Beijing Institute of Technology, Jiaxing 314019, China
| | - Yunyun Xing
- School of Life Sciences, State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing 100084, China
| | - Yunxiang Huang
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Laboratory of Flexible Electronics Technology, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing 100084, China
| | - Xing Sheng
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Laboratory of Flexible Electronics Technology, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing 100084, China
| | - Jun Yao
- School of Life Sciences, State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing 100084, China
| | - Hao Zhang
- Department of Chemistry, Center for Bioanalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
| | - Jinghong Li
- Department of Chemistry, Center for Bioanalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
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2
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Guo F, Jooken S, Ahmad A, Yu W, Deschaume O, Thielemans W, Bartic C. Optically Active, Paper-Based Scaffolds for 3D Cardiac Pacing. ACS APPLIED MATERIALS & INTERFACES 2024; 16:53449-53459. [PMID: 39332816 PMCID: PMC11472259 DOI: 10.1021/acsami.4c10183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 08/28/2024] [Accepted: 08/29/2024] [Indexed: 09/29/2024]
Abstract
In this work, we report the design and fabrication of a light-addressable, paper-based nanocomposite scaffold for optical pacing and read-out of in vitro grown cardiac tissue. The scaffold consists of paper cellulose microfibers functionalized with gold nanorods (GNRs) and semiconductor quantum dots (QDs), embedded in a cell-permissive collagen matrix. The GNRs enable cardiomyocyte activity modulation through local temperature gradients induced by modulated near-infrared (NIR) laser illumination, with the local temperature changes reported by temperature-dependent QD photoluminescence (PL). The micrometer-sized paper fibers promote the tubular organization of HL-1 cardiac muscle cells, while the NIR plasmonic stimulation modulates reversibly their activity. Given the nanoscale spatial resolution and facile fabrication, paper-based nanocomposite scaffolds with NIR modulation offer excellent alternatives to electrode-based or optogenetic methods for cell activity modulation, at the single cell level, and are compatible with 3D tissue constructs. Such paper-based optical platforms can provide new possibilities for the development of in vitro drug screening assays and heart disease modeling.
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Affiliation(s)
- Fanglei Guo
- Laboratory
for Soft Matter and Biophysics, Department of Physics and Astronomy, KU Leuven, 3001 Leuven, Belgium
| | - Stijn Jooken
- Laboratory
for Soft Matter and Biophysics, Department of Physics and Astronomy, KU Leuven, 3001 Leuven, Belgium
| | - Amin Ahmad
- Laboratory
for Soft Matter and Biophysics, Department of Physics and Astronomy, KU Leuven, 3001 Leuven, Belgium
| | - Wei Yu
- Laboratory
for Soft Matter and Biophysics, Department of Physics and Astronomy, KU Leuven, 3001 Leuven, Belgium
| | - Olivier Deschaume
- Laboratory
for Soft Matter and Biophysics, Department of Physics and Astronomy, KU Leuven, 3001 Leuven, Belgium
| | - Wim Thielemans
- Sustainable
Materials Lab, Department of Chemical Engineering, KU Leuven, Campus Kulak Kortrijk, Etienne Sabbelaan 53, Kortrijk 8500, Belgium
| | - Carmen Bartic
- Laboratory
for Soft Matter and Biophysics, Department of Physics and Astronomy, KU Leuven, 3001 Leuven, Belgium
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3
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Wang Y, Hartung JE, Goad A, Preisegger MA, Chacon B, Gold MS, Gogotsi Y, Cohen-Karni T. Photothermal Excitation of Neurons Using MXene: Cellular Stress and Phototoxicity Evaluation. Adv Healthc Mater 2024; 13:e2302330. [PMID: 37755313 PMCID: PMC10963341 DOI: 10.1002/adhm.202302330] [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: 07/21/2023] [Revised: 09/17/2023] [Indexed: 09/28/2023]
Abstract
Understanding the communication of individual neurons necessitates precise control of neural activity. Photothermal modulation is a remote and non-genetic technique to control neural activity with high spatiotemporal resolution. The local heat release by photothermally active nanomaterial will change the membrane properties of the interfaced neurons during light illumination. Recently, it is demonstrated that the two-dimensional Ti3C2Tx MXene is an outstanding candidate to photothermally excite neurons with low incident energy. However, the safety of using Ti3C2Tx for neural modulation is unknown. Here, the biosafety of Ti3C2Tx-based photothermal modulation is thoroughly investigated, including assessments of plasma membrane integrity, mitochondrial stress, and oxidative stress. It is demonstrated that culturing neurons on 25 µg cm-2 Ti3C2Tx films and illuminating them with laser pulses (635 nm) with different incident energies (2-10 µJ per pulse) and different pulse frequencies (1 pulse, 1 Hz, and 10 Hz) neither damage the cell membrane, induce cellular stress, nor generate oxidative stress. The threshold energy to cause damage (i.e., 14 µJ per pulse) exceeded the incident energy for neural excitation (<10 µJ per pulse). This multi-assay safety evaluation provides crucial insights for guiding the establishment of light conditions and protocols in the clinical translation of photothermal modulation.
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Affiliation(s)
- Yingqiao Wang
- Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213
| | - Jane E. Hartung
- Department of Neurobiology, University of Pittsburgh, Pittsburgh, PA, 15260
| | - Adam Goad
- A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104
| | | | - Benjamin Chacon
- A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104
| | - Michael S. Gold
- Department of Neurobiology, University of Pittsburgh, Pittsburgh, PA, 15260
| | - Yury Gogotsi
- A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104
| | - Tzahi Cohen-Karni
- Department of Materials Science and Engineering and Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213
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4
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Du Z, Li M, Chen G, Xiang M, Jia D, Cheng JX, Yang C. Mid-Infrared Photoacoustic Stimulation of Neurons through Vibrational Excitation in Polydimethylsiloxane. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2405677. [PMID: 38994890 PMCID: PMC11425203 DOI: 10.1002/advs.202405677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 06/26/2024] [Indexed: 07/13/2024]
Abstract
Photoacoustic (PA) emitters are emerging ultrasound sources offering high spatial resolution and ease of miniaturization. Thus far, PA emitters rely on electronic transitions of absorbers embedded in an expansion matrix such as polydimethylsiloxane (PDMS). Here, it is shown that mid-infrared vibrational excitation of C─H bonds in a transparent PDMS film can lead to efficient mid-infrared photoacoustic conversion (MIPA). MIPA shows 37.5 times more efficient than the commonly used PA emitters based on carbon nanotubes embedded in PDMS. Successful neural stimulation through MIPA both in a wide field with a size up to a 100 µm radius and in single-cell precision is achieved. Owing to the low heat conductivity of PDMS, less than a 0.5 °C temperature increase is found on the surface of a PDMS film during successful neural stimulation, suggesting a non-thermal mechanism. MIPA emitters allow repetitive wide-field neural stimulation, opening up opportunities for high-throughput screening of mechano-sensitive ion channels and regulators.
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Affiliation(s)
- Zhiyi Du
- Department of Chemistry, Boston University, Boston, MA, 02215, USA
| | - Mingsheng Li
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, 02215, USA
| | - Guo Chen
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, 02215, USA
| | - Maijie Xiang
- Division of Materials Science and Engineering, Boston University, Boston, MA, 02215, USA
| | - Danchen Jia
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, 02215, USA
| | - Ji-Xin Cheng
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, 02215, USA
- Department of Biomedical Engineering, Boston University, Boston, MA, 02215, USA
| | - Chen Yang
- Department of Chemistry, Boston University, Boston, MA, 02215, USA
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, 02215, USA
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5
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Pisano F, Collard L, Zheng D, Kashif MF, Kazemzadeh M, Balena A, Piscopo L, Andriani MS, De Vittorio M, Pisanello F. Potential of plasmonics and nanoscale light-matter interactions for the next generation of optical neural interfaces. NEUROPHOTONICS 2024; 11:S11513. [PMID: 39119220 PMCID: PMC11309004 DOI: 10.1117/1.nph.11.s1.s11513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 07/02/2024] [Accepted: 07/15/2024] [Indexed: 08/10/2024]
Abstract
Within the realm of optical neural interfaces, the exploration of plasmonic resonances to interact with neural cells has captured increasing attention among the neuroscience community. The interplay of light with conduction electrons in nanometer-sized metallic nanostructures can induce plasmonic resonances, showcasing a versatile capability to both sense and trigger cellular events. We describe the perspective of generating propagating or localized surface plasmon polaritons on the tip of an optical neural implant, widening the possibility for neuroscience labs to explore the potential of plasmonic neural interfaces.
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Affiliation(s)
- Filippo Pisano
- Istituto Italiano di Tecnologia, Center for Biomolecular Nanotechnologies, Arnesano (Lecce), Italy
- University of Padua, Department of Physics and Astronomy “G. Galilei” Padua, Italy
| | - Liam Collard
- Istituto Italiano di Tecnologia, Center for Biomolecular Nanotechnologies, Arnesano (Lecce), Italy
- RAISE Ecosystem, Genova, Italy
| | - Di Zheng
- Istituto Italiano di Tecnologia, Center for Biomolecular Nanotechnologies, Arnesano (Lecce), Italy
| | - Muhammad Fayyaz Kashif
- Istituto Italiano di Tecnologia, Center for Biomolecular Nanotechnologies, Arnesano (Lecce), Italy
| | - Mohammadrahim Kazemzadeh
- Istituto Italiano di Tecnologia, Center for Biomolecular Nanotechnologies, Arnesano (Lecce), Italy
| | - Antonio Balena
- Istituto Italiano di Tecnologia, Center for Biomolecular Nanotechnologies, Arnesano (Lecce), Italy
| | - Linda Piscopo
- Istituto Italiano di Tecnologia, Center for Biomolecular Nanotechnologies, Arnesano (Lecce), Italy
- Università del Salento, Dipartimento di Ingegneria Dell’Innovazione, Lecce, Italy
| | - Maria Samuela Andriani
- Istituto Italiano di Tecnologia, Center for Biomolecular Nanotechnologies, Arnesano (Lecce), Italy
- Università del Salento, Dipartimento di Ingegneria Dell’Innovazione, Lecce, Italy
| | - Massimo De Vittorio
- Istituto Italiano di Tecnologia, Center for Biomolecular Nanotechnologies, Arnesano (Lecce), Italy
- RAISE Ecosystem, Genova, Italy
- Università del Salento, Dipartimento di Ingegneria Dell’Innovazione, Lecce, Italy
| | - Ferruccio Pisanello
- Istituto Italiano di Tecnologia, Center for Biomolecular Nanotechnologies, Arnesano (Lecce), Italy
- RAISE Ecosystem, Genova, Italy
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6
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Sun C, Fan Q, Xie R, Luo C, Hu B, Wang Q. Tetherless Optical Neuromodulation: Wavelength from Orange-red to Mid-infrared. Neurosci Bull 2024; 40:1173-1188. [PMID: 38372931 PMCID: PMC11306867 DOI: 10.1007/s12264-024-01179-1] [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: 07/06/2023] [Accepted: 11/11/2023] [Indexed: 02/20/2024] Open
Abstract
Optogenetics, a technique that employs light for neuromodulation, has revolutionized the study of neural mechanisms and the treatment of neurological disorders due to its high spatiotemporal resolution and cell-type specificity. However, visible light, particularly blue and green light, commonly used in conventional optogenetics, has limited penetration in biological tissue. This limitation necessitates the implantation of optical fibers for light delivery, especially in deep brain regions, leading to tissue damage and experimental constraints. To overcome these challenges, the use of orange-red and infrared light with greater tissue penetration has emerged as a promising approach for tetherless optical neuromodulation. In this review, we provide an overview of the development and applications of tetherless optical neuromodulation methods with long wavelengths. We first discuss the exploration of orange-red wavelength-responsive rhodopsins and their performance in tetherless optical neuromodulation. Then, we summarize two novel tetherless neuromodulation methods using near-infrared light: upconversion nanoparticle-mediated optogenetics and photothermal neuromodulation. In addition, we discuss recent advances in mid-infrared optical neuromodulation.
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Affiliation(s)
- Chao Sun
- Key Laboratory of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences, Xi'an, 710119, China
- Key Laboratory of Biomedical Spectroscopy of Xi'an, Key Laboratory of Spectral Imaging Technology, XIOPM, Chinese Academy of Sciences, Xi'an, 710119, China
| | - Qi Fan
- Key Laboratory of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences, Xi'an, 710119, China
- Key Laboratory of Biomedical Spectroscopy of Xi'an, Key Laboratory of Spectral Imaging Technology, XIOPM, Chinese Academy of Sciences, Xi'an, 710119, China
| | - Rougang Xie
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Ceng Luo
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Bingliang Hu
- Key Laboratory of Biomedical Spectroscopy of Xi'an, Key Laboratory of Spectral Imaging Technology, XIOPM, Chinese Academy of Sciences, Xi'an, 710119, China
| | - Quan Wang
- Key Laboratory of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences, Xi'an, 710119, China.
- Key Laboratory of Biomedical Spectroscopy of Xi'an, Key Laboratory of Spectral Imaging Technology, XIOPM, Chinese Academy of Sciences, Xi'an, 710119, China.
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7
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Fu X, Hu Z, Li W, Ma L, Chen J, Liu M, Liu J, Hu S, Wang H, Huang Y, Tang G, Zhang B, Cai X, Wang Y, Li L, Ma J, Shi SH, Yin L, Zhang H, Li X, Sheng X. A silicon diode-based optoelectronic interface for bidirectional neural modulation. Proc Natl Acad Sci U S A 2024; 121:e2404164121. [PMID: 39012823 PMCID: PMC11287284 DOI: 10.1073/pnas.2404164121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 06/13/2024] [Indexed: 07/18/2024] Open
Abstract
The development of advanced neural modulation techniques is crucial to neuroscience research and neuroengineering applications. Recently, optical-based, nongenetic modulation approaches have been actively investigated to remotely interrogate the nervous system with high precision. Here, we show that a thin-film, silicon (Si)-based diode device is capable to bidirectionally regulate in vitro and in vivo neural activities upon adjusted illumination. When exposed to high-power and short-pulsed light, the Si diode generates photothermal effects, evoking neuron depolarization and enhancing intracellular calcium dynamics. Conversely, low-power and long-pulsed light on the Si diode hyperpolarizes neurons and reduces calcium activities. Furthermore, the Si diode film mounted on the brain of living mice can activate or suppress cortical activities under varied irradiation conditions. The presented material and device strategies reveal an innovated optoelectronic interface for precise neural modulations.
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Affiliation(s)
- Xin Fu
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Laboratory of Flexible Electronics Technology, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing100084, China
- School of Materials Science and Engineering, Key Laboratory of Advanced Materials (Ministry of Education), State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing100084, China
| | - Zhengwei Hu
- Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen518055, China
| | - Wenjun Li
- Department of Chemistry, Center for Bioanalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing100084, China
| | - Liang Ma
- Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen518055, China
| | - Junyu Chen
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Laboratory of Flexible Electronics Technology, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing100084, China
| | - Muyang Liu
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Laboratory of Flexible Electronics Technology, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing100084, China
| | - Jie Liu
- School of Life Sciences, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing100084, China
| | - Shuhan Hu
- School of Life Sciences, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing100084, China
| | - Huachun Wang
- School of Integrated Circuits, Shenzhen Campus of Sun Yat-sen University, Shenzhen518107, China
| | - Yunxiang Huang
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Laboratory of Flexible Electronics Technology, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing100084, China
- School of Materials Science and Engineering, Key Laboratory of Advanced Materials (Ministry of Education), State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing100084, China
| | - Guo Tang
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Laboratory of Flexible Electronics Technology, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing100084, China
| | - Bozhen Zhang
- School of Materials Science and Engineering, Key Laboratory of Advanced Materials (Ministry of Education), State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing100084, China
| | - Xue Cai
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Laboratory of Flexible Electronics Technology, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing100084, China
| | - Yuqi Wang
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Laboratory of Flexible Electronics Technology, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing100084, China
| | - Lizhu Li
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Laboratory of Flexible Electronics Technology, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing100084, China
| | - Jian Ma
- School of Life Sciences, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing100084, China
| | - Song-Hai Shi
- School of Life Sciences, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing100084, China
| | - Lan Yin
- School of Materials Science and Engineering, Key Laboratory of Advanced Materials (Ministry of Education), State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing100084, China
| | - Hao Zhang
- Department of Chemistry, Center for Bioanalytical Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing100084, China
| | - Xiaojian Li
- Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen518055, China
| | - Xing Sheng
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Laboratory of Flexible Electronics Technology, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing100084, China
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8
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Li G, Li D, Lan B, Chen Y, Zhang W, Li B, Liu Y, Fan H, Lu H. Functional nanotransducer-mediated wireless neural modulation techniques. Phys Med Biol 2024; 69:14TR02. [PMID: 38959904 DOI: 10.1088/1361-6560/ad5ef0] [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: 04/27/2024] [Accepted: 07/03/2024] [Indexed: 07/05/2024]
Abstract
Functional nanomaterials have emerged as versatile nanotransducers for wireless neural modulation because of their minimal invasion and high spatiotemporal resolution. The nanotransducers can convert external excitation sources (e.g. NIR light, x-rays, and magnetic fields) to visible light (or local heat) to activate optogenetic opsins and thermosensitive ion channels for neuromodulation. The present review provides insights into the fundamentals of the mostly used functional nanomaterials in wireless neuromodulation including upconversion nanoparticles, nanoscintillators, and magnetic nanoparticles. We further discussed the recent developments in design strategies of functional nanomaterials with enhanced energy conversion performance that have greatly expanded the field of neuromodulation. We summarized the applications of functional nanomaterials-mediated wireless neuromodulation techniques, including exciting/silencing neurons, modulating brain activity, controlling motor behaviors, and regulating peripheral organ function in mice. Finally, we discussed some key considerations in functional nanotransducer-mediated wireless neuromodulation along with the current challenges and future directions.
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Affiliation(s)
- Galong Li
- School of Biomedical Engineering, Shaanxi Provincial Key Laboratory of Bioelectromagnetic Detection and Intelligent Perception, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Dongyan Li
- School of Biomedical Engineering, Shaanxi Provincial Key Laboratory of Bioelectromagnetic Detection and Intelligent Perception, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Bin Lan
- School of Biomedical Engineering, Shaanxi Provincial Key Laboratory of Bioelectromagnetic Detection and Intelligent Perception, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Yihuan Chen
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Wenli Zhang
- School of Biomedical Engineering, Shaanxi Provincial Key Laboratory of Bioelectromagnetic Detection and Intelligent Perception, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Baojuan Li
- School of Biomedical Engineering, Shaanxi Provincial Key Laboratory of Bioelectromagnetic Detection and Intelligent Perception, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Yang Liu
- School of Biomedical Engineering, Shaanxi Provincial Key Laboratory of Bioelectromagnetic Detection and Intelligent Perception, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Haiming Fan
- Faculty of Life Sciences and Medicine, College of Chemistry and Materials Science, Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, Northwest University, Xi'an, People's Republic of China
| | - Hongbin Lu
- School of Biomedical Engineering, Shaanxi Provincial Key Laboratory of Bioelectromagnetic Detection and Intelligent Perception, Fourth Military Medical University, Xi'an, People's Republic of China
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9
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Ren Q, Wu H, Zhang Y, Dai J, Chang Z, Nie J, Wang B, Fang Y. Nongenetic Precise Neuromodulation and Spatiotemporal Neuroprotection for Epilepsy Therapy via Rationally Designed Multifunctional Nanotransducer. ACS NANO 2024; 18:16853-16866. [PMID: 38896491 DOI: 10.1021/acsnano.4c02546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
The precise modulation of electrical activity in specific neuronal populations is paramount for rectifying abnormal neurological functions and is a critical element in the therapeutic arsenal for neurological disorders. However, achieving a balance between minimal invasiveness and robust neuroprotection poses a considerable challenge. Herein, we present a nanoneuromodulation strategy integrating neuroprotective features to effectively address epilepsy with minimal invasiveness and enable wireless functionality. Strategically engineered nanotransducer, adorned with platinum (Pt) decoration with titanium disulfide (TiS2) (TiS2/Pt), enables precise modulation of neuronal electrical activity in vitro and in vivo, ensuring exceptional temporal fidelity under millisecond-precision near-infrared (NIR) light pulses irradiation. Concurrently, TiS2/Pt showcase a pronounced enhancement in enzyme-mimicking activity, offering a robust defense against oxidative neurological injury in vitro. Nanotransducer-enabled wireless neuromodulation with biocatalytic neuroprotective capacity is highly effective in alleviating epileptic high-frequency neural activity and diminishing oxidative stress levels, thereby restoring redox equilibrium. This integrated therapeutic approach reduces the severity of epilepsy, demonstrating minimal invasiveness and obviating the requirements for genetic manipulation and optical fiber implantation, while providing an alternative avenue for neurological disorder treatment.
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Affiliation(s)
- Qinjuan Ren
- Research Center for Translational Medicine, Shanghai East Hospital affiliated to Tongji University School of Medicine; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, China
| | - Haofan Wu
- Research Center for Translational Medicine, Shanghai East Hospital affiliated to Tongji University School of Medicine; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, China
| | - Ya Zhang
- Research Center for Translational Medicine, Shanghai East Hospital affiliated to Tongji University School of Medicine; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, China
| | - Jing Dai
- Research Center for Translational Medicine, Shanghai East Hospital affiliated to Tongji University School of Medicine; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, China
| | - Zhiqiang Chang
- Research Center for Translational Medicine, Shanghai East Hospital affiliated to Tongji University School of Medicine; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, China
| | - Jianfang Nie
- Research Center for Translational Medicine, Shanghai East Hospital affiliated to Tongji University School of Medicine; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, China
| | - Bingfang Wang
- Research Center for Translational Medicine, Shanghai East Hospital affiliated to Tongji University School of Medicine; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, China
| | - Yin Fang
- Research Center for Translational Medicine, Shanghai East Hospital affiliated to Tongji University School of Medicine; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, China
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10
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Jakešová M, Kunovský O, Gablech I, Khodagholy D, Gelinas J, Głowacki ED. Coupling of photovoltaics with neurostimulation electrodes-optical to electrolytic transduction. J Neural Eng 2024; 21:046003. [PMID: 38885680 DOI: 10.1088/1741-2552/ad593d] [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: 02/06/2024] [Accepted: 06/17/2024] [Indexed: 06/20/2024]
Abstract
Objective.The wireless transfer of power for driving implantable neural stimulation devices has garnered significant attention in the bioelectronics field. This study explores the potential of photovoltaic (PV) power transfer, utilizing tissue-penetrating deep-red light-a novel and promising approach that has received less attention compared to traditional induction or ultrasound techniques. Our objective is to critically assess key parameters for directly powering neurostimulation electrodes with PVs, converting light impulses into neurostimulation currents.Approach.We systematically investigate varying PV cell size, optional series configurations, and coupling with microelectrodes fabricated from a range of materials such as Pt, TiN, IrOx, Ti, W, PtOx, Au, or poly(3,4 ethylenedioxythiophene):poly(styrene sulfonate). Additionally, two types of PVs, ultrathin organic PVs and monocrystalline silicon PVs, are compared. These combinations are employed to drive pairs of electrodes with different sizes and impedances. The readout method involves measuring electrolytic current using a straightforward amplifier circuit.Main results.Optimal PV selection is crucial, necessitating sufficiently large PV cells to generate the desired photocurrent. Arranging PVs in series is essential to produce the appropriate voltage for driving current across electrode/electrolyte impedances. By carefully choosing the PV arrangement and electrode type, it becomes possible to emulate electrical stimulation protocols in terms of charge and frequency. An important consideration is whether the circuit is photovoltage-limited or photocurrent-limited. High charge-injection capacity electrodes made from pseudo-faradaic materials impose a photocurrent limit, while more capacitive materials like Pt are photovoltage-limited. Although organic PVs exhibit lower efficiency than silicon PVs, in many practical scenarios, stimulation current is primarily limited by the electrodes rather than the PV driver, leading to potential parity between the two types.Significance.This study provides a foundational guide for designing a PV-powered neurostimulation circuit. The insights gained are applicable to bothin vitroandin vivoapplications, offering a resource to the neural engineering community.
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Affiliation(s)
- Marie Jakešová
- Bioelectronics Materials and Devices Laboratory, Central European Institute of Technology CEITEC, Brno University of Technology, Purkyňova 123, 61200 Brno, Czech Republic
| | - Ondřej Kunovský
- Bioelectronics Materials and Devices Laboratory, Central European Institute of Technology CEITEC, Brno University of Technology, Purkyňova 123, 61200 Brno, Czech Republic
| | - Imrich Gablech
- Bioelectronics Materials and Devices Laboratory, Central European Institute of Technology CEITEC, Brno University of Technology, Purkyňova 123, 61200 Brno, Czech Republic
| | - Dion Khodagholy
- Department of Electrical Engineering, Columbia University, New York, NY 10027, United States of America
| | - Jennifer Gelinas
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States of America
- Department of Neurology, Columbia University, New York, NY 10032, United States of America
| | - Eric Daniel Głowacki
- Bioelectronics Materials and Devices Laboratory, Central European Institute of Technology CEITEC, Brno University of Technology, Purkyňova 123, 61200 Brno, Czech Republic
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11
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Shao L, Wei H, Liu J, Ma W, Yu P, Wang M, Mao L. Graphdiyne as a Highly Efficient and Neuron-Targeted Photothermal Transducer for in Vivo Neuromodulation. ACS NANO 2024; 18:15607-15616. [PMID: 38838347 DOI: 10.1021/acsnano.4c01037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
Photothermal modulation of neural activity offers a promising approach for understanding brain circuits and developing therapies for neurological disorders. However, the low neuron selectivity and inefficient light-to-heat conversion of existing photothermal nanomaterials significantly limit their potential for neuromodulation. Here, we report that graphdiyne (GDY) can be developed into an efficient neuron-targeted photothermal transducer for in vivo modulation of neuronal activity through rational surface functionalization. We functionalize GDY with polyethylene glycol (PEG) through noncovalent hydrophobic interactions, followed by antibody conjugation to specifically target the temperature-sensitive transient receptor potential cation channel subfamily V member 1 (TRPV1) on the surface of neural cells. The nanotransducer not only exhibits high photothermal conversion efficiency in the near-infrared region but also shows great TRPV1-targeting capability. This enables photothermal activation of TRPV1, leading to neurotransmitter release in cells and modulation of neural firing in living mice. With its precision and selectivity, the GDY-based transducer provides an innovative avenue for understanding brain function and developing therapeutic strategies for neurodegenerative diseases.
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Affiliation(s)
- Leihou Shao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Institute of Analysis and Testing, Beijing Academy of Science and Technology (Beijing Center for Physical and Chemical Analysis), Beijing 100089, China
| | - Huan Wei
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Jing Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Institute of Analysis and Testing, Beijing Academy of Science and Technology (Beijing Center for Physical and Chemical Analysis), Beijing 100089, China
| | - Wenjie Ma
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Ping Yu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ming Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lanqun Mao
- College of Chemistry, Beijing Normal University, Beijing 100875, China
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12
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Balamur R, Oh JT, Karatum O, Wang Y, Onal A, Kaleli HN, Pehlivan C, Şahin A, Hasanreisoglu M, Konstantatos G, Nizamoglu S. Capacitive and Efficient Near-Infrared Stimulation of Neurons via an Ultrathin AgBiS 2 Nanocrystal Layer. ACS APPLIED MATERIALS & INTERFACES 2024; 16:29610-29620. [PMID: 38807565 DOI: 10.1021/acsami.4c01964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Colloidal nanocrystals (NCs) exhibit significant potential for photovoltaic bioelectronic interfaces because of their solution processability, tunable energy levels, and inorganic nature, lending them chemical stability. Silver bismuth sulfide (AgBiS2) NCs, free from toxic heavy-metal elements (e.g., Cd, Hg, and Pb), particularly offer an exceptional absorption coefficient exceeding 105 cm-1 in the near-infrared (NIR), surpassing many of their inorganic counterparts. Here, we integrated an ultrathin (24 nm) AgBiS2 NC layer into a water-stable photovoltaic bioelectronic device architecture that showed a high capacitive photocurrent of 2.3 mA·cm-2 in artificial cerebrospinal fluid (aCSF) and ionic charges over 10 μC·cm-2 at a low NIR intensity of 0.5 mW·mm-2. The device without encapsulation showed a halftime of 12.5 years under passive accelerated aging test and did not show any toxicity on neurons. Furthermore, patch-clamp electrophysiology on primary hippocampal neurons under whole-cell configuration revealed that the device elicited neuron firing at intensity levels more than an order of magnitude below the established ocular safety limits. These findings point to the potential of AgBiS2 NCs for photovoltaic retinal prostheses.
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Affiliation(s)
- Ridvan Balamur
- Department of Electrical and Electronics Engineering, Koç University, Istanbul 34450, Turkey
| | - Jae Taek Oh
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain
| | - Onuralp Karatum
- Department of Electrical and Electronics Engineering, Koç University, Istanbul 34450, Turkey
| | - Yongjie Wang
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain
| | - Asim Onal
- Department of Biomedical Science and Engineering, Koç University, Istanbul 34450, Turkey
| | - Humeyra Nur Kaleli
- Research Center for Translational Medicine, Koç University, Istanbul 34450, Turkey
| | - Cigdem Pehlivan
- Research Center for Translational Medicine, Koç University, Istanbul 34450, Turkey
| | - Afsun Şahin
- Research Center for Translational Medicine, Koç University, Istanbul 34450, Turkey
| | - Murat Hasanreisoglu
- Research Center for Translational Medicine, Koç University, Istanbul 34450, Turkey
| | - Gerasimos Konstantatos
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain
- ICREA - Institució Catalana de Recerca i Estudiats Avançats, Lluis Companys 23, Barcelona 08010, Spain
| | - Sedat Nizamoglu
- Department of Electrical and Electronics Engineering, Koç University, Istanbul 34450, Turkey
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13
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Lu Q, Sun Y, Liang Z, Zhang Y, Wang Z, Mei Q. Nano-optogenetics for Disease Therapies. ACS NANO 2024; 18:14123-14144. [PMID: 38768091 DOI: 10.1021/acsnano.4c00698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Optogenetic, known as the method of 21 centuries, combines optic and genetic engineering to precisely control photosensitive proteins for manipulation of a broad range of cellular functions, such as flux of ions, protein oligomerization and dissociation, cellular intercommunication, and so on. In this technique, light is conventionally delivered to targeted cells through optical fibers or micro light-emitting diodes, always suffering from high invasiveness, wide-field illumination facula, strong absorption, and scattering by nontargeted endogenous substance. Light-transducing nanomaterials with advantages of high spatiotemporal resolution, abundant wireless-excitation manners, and easy functionalization for recognition of specific cells, recently have been widely explored in the field of optogenetics; however, there remain a few challenges to restrain its clinical applications. This review summarized recent progress on light-responsive genetically encoded proteins and the myriad of activation strategies by use of light-transducing nanomaterials and their disease-treatment applications, which is expected for sparking helpful thought to push forward its preclinical and translational uses.
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Affiliation(s)
- Qi Lu
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Yaru Sun
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Zhengbing Liang
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Yi Zhang
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Zhigang Wang
- Department of Critical Care Medicine, The First Affiliated Hospital, Jinan University, Guangzhou, Guangdong 510632, China
| | - Qingsong Mei
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, China
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14
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Sun P, Li C, Yang C, Sun M, Hou H, Guan Y, Chen J, Liu S, Chen K, Ma Y, Huang Y, Li X, Wang H, Wang L, Chen S, Cheng H, Xiong W, Sheng X, Zhang M, Peng J, Wang S, Wang Y, Yin L. A biodegradable and flexible neural interface for transdermal optoelectronic modulation and regeneration of peripheral nerves. Nat Commun 2024; 15:4721. [PMID: 38830884 PMCID: PMC11148186 DOI: 10.1038/s41467-024-49166-4] [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: 08/02/2023] [Accepted: 05/23/2024] [Indexed: 06/05/2024] Open
Abstract
Optoelectronic neural interfaces can leverage the photovoltaic effect to convert light into electrical current, inducing charge redistribution and enabling nerve stimulation. This method offers a non-genetic and remote approach for neuromodulation. Developing biodegradable and efficient optoelectronic neural interfaces is important for achieving transdermal stimulation while minimizing infection risks associated with device retrieval, thereby maximizing therapeutic outcomes. We propose a biodegradable, flexible, and miniaturized silicon-based neural interface capable of transdermal optoelectronic stimulation for neural modulation and nerve regeneration. Enhancing the device interface with thin-film molybdenum significantly improves the efficacy of neural stimulation. Our study demonstrates successful activation of the sciatic nerve in rodents and the facial nerve in rabbits. Moreover, transdermal optoelectronic stimulation accelerates the functional recovery of injured facial nerves.
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Affiliation(s)
- Pengcheng Sun
- School of Materials Science and Engineering, The Key Laboratory of Advanced Materials of Ministry of Education, State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
| | - Chaochao Li
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and Injuries PLA, No. 28 Fuxing Road, Beijing, 100853, P. R. China
| | - Can Yang
- School of Materials Science and Engineering, The Key Laboratory of Advanced Materials of Ministry of Education, State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
| | - Mengchun Sun
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and Injuries PLA, No. 28 Fuxing Road, Beijing, 100853, P. R. China
| | - Hanqing Hou
- School of Life Sciences, Tsinghua University, Beijing, 100084, P. R. China
| | - Yanjun Guan
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and Injuries PLA, No. 28 Fuxing Road, Beijing, 100853, P. R. China
| | - Jinger Chen
- School of Materials Science and Engineering, The Key Laboratory of Advanced Materials of Ministry of Education, State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
| | - Shangbin Liu
- School of Materials Science and Engineering, The Key Laboratory of Advanced Materials of Ministry of Education, State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
| | - Kuntao Chen
- School of Materials Science and Engineering, The Key Laboratory of Advanced Materials of Ministry of Education, State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
| | - Yuan Ma
- Department of Electronic Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Yunxiang Huang
- Thayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA
| | - Xiangling Li
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and Injuries PLA, No. 28 Fuxing Road, Beijing, 100853, P. R. China
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, P. R. China
| | - Huachun Wang
- School of Integrated Circuits, Shenzhen Campus of Sun Yat-sen University, Shenzhen, 518107, P. R. China
| | - Liu Wang
- School of Biological Science and Medical Engineering, Key Laboratory of Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100083, P. R. China
- School of Engineering Medicine, Beihang University, Beijing, 100083, P. R. China
| | - Shengfeng Chen
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and Injuries PLA, No. 28 Fuxing Road, Beijing, 100853, P. R. China
| | - Haofeng Cheng
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and Injuries PLA, No. 28 Fuxing Road, Beijing, 100853, P. R. China
| | - Wei Xiong
- Chinese Institute for Brain Research, Beijing, 102206, P. R. China
| | - Xing Sheng
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
- Institute for Precision Medicine, Tsinghua University, Beijing, 100084, P. R. China
- IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing, 100084, P. R. China
| | - Milin Zhang
- Department of Electronic Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Jiang Peng
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and Injuries PLA, No. 28 Fuxing Road, Beijing, 100853, P. R. China
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226007, P. R. China
| | - Shirong Wang
- MegaRobo Technologies Co. ltd, Beijing, 100085, P. R. China.
| | - Yu Wang
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and Injuries PLA, No. 28 Fuxing Road, Beijing, 100853, P. R. China.
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226007, P. R. China.
| | - Lan Yin
- School of Materials Science and Engineering, The Key Laboratory of Advanced Materials of Ministry of Education, State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China.
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15
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Sander MY, Zhu X. Infrared neuromodulation-a review. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2024; 87:066701. [PMID: 38701769 DOI: 10.1088/1361-6633/ad4729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 05/03/2024] [Indexed: 05/05/2024]
Abstract
Infrared (IR) neuromodulation (INM) is an emerging light-based neuromodulation approach that can reversibly control neuronal and muscular activities through the transient and localized deposition of pulsed IR light without requiring any chemical or genetic pre-treatment of the target cells. Though the efficacy and short-term safety of INM have been widely demonstrated in both peripheral and central nervous systems, the investigations of the detailed cellular and biological processes and the underlying biophysical mechanisms are still ongoing. In this review, we discuss the current research progress in the INM field with a focus on the more recently discovered IR nerve inhibition. Major biophysical mechanisms associated with IR nerve stimulation are summarized. As the INM effects are primarily attributed to the spatiotemporal thermal transients induced by water and tissue absorption of pulsed IR light, temperature monitoring techniques and simulation models adopted in INM studies are discussed. Potential translational applications, current limitations, and challenges of the field are elucidated to provide guidance for future INM research and advancement.
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Affiliation(s)
- Michelle Y Sander
- Department of Electrical and Computer Engineering, Boston University, 8 Saint Mary's Street, Boston, MA 02215, United States of America
- Department of Biomedical Engineering, Boston University, 44 Cummington Mall, Boston, MA 02215, United States of America
- Division of Materials Science and Engineering, Boston University, 15 Saint Mary's Street, Brookline, MA 02446, United States of America
- Photonics Center, Boston University, 8 Saint Mary's Street, Boston, MA 02215, United States of America
- Neurophotonics Center, Boston University, 24 Cummington Mall, Boston, MA 02215, United States of America
| | - Xuedong Zhu
- Department of Biomedical Engineering, Boston University, 44 Cummington Mall, Boston, MA 02215, United States of America
- Photonics Center, Boston University, 8 Saint Mary's Street, Boston, MA 02215, United States of America
- Neurophotonics Center, Boston University, 24 Cummington Mall, Boston, MA 02215, United States of America
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16
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Pfeffer ME, DiFrancesco ML, Marchesi A, Galluzzi F, Moschetta M, Rossini A, Francia S, Franz CM, Fok Y, Valotteau C, Paternò GM, Redondo Morata L, Vacca F, Mattiello S, Magni A, Maragliano L, Beverina L, Mattioli G, Lanzani G, Baldelli P, Colombo E, Benfenati F. Nanoactuator for Neuronal Optoporation. ACS NANO 2024; 18:12427-12452. [PMID: 38687909 DOI: 10.1021/acsnano.4c01672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Light-driven modulation of neuronal activity at high spatial-temporal resolution is becoming of high interest in neuroscience. In addition to optogenetics, nongenetic membrane-targeted nanomachines that alter the electrical state of the neuronal membranes are in demand. Here, we engineered and characterized a photoswitchable conjugated compound (BV-1) that spontaneously partitions into the neuronal membrane and undergoes a charge transfer upon light stimulation. The activity of primary neurons is not affected in the dark, whereas millisecond light pulses of cyan light induce a progressive decrease in membrane resistance and an increase in inward current matched to a progressive depolarization and action potential firing. We found that illumination of BV-1 induces oxidation of membrane phospholipids, which is necessary for the electrophysiological effects and is associated with decreased membrane tension and increased membrane fluidity. Time-resolved atomic force microscopy and molecular dynamics simulations performed on planar lipid bilayers revealed that the underlying mechanism is a light-driven formation of pore-like structures across the plasma membrane. Such a phenomenon decreases membrane resistance and increases permeability to monovalent cations, namely, Na+, mimicking the effects of antifungal polyenes. The same effect on membrane resistance was also observed in nonexcitable cells. When sustained light stimulations are applied, neuronal swelling and death occur. The light-controlled pore-forming properties of BV-1 allow performing "on-demand" light-induced membrane poration to rapidly shift from cell-attached to perforated whole-cell patch-clamp configuration. Administration of BV-1 to ex vivo retinal explants or in vivo primary visual cortex elicited neuronal firing in response to short trains of light stimuli, followed by activity silencing upon prolonged light stimulations. BV-1 represents a versatile molecular nanomachine whose properties can be exploited to induce either photostimulation or space-specific cell death, depending on the pattern and duration of light stimulation.
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Affiliation(s)
- Marlene E Pfeffer
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- Department of Experimental Medicine, University of Genova, Viale Benedetto XV 3, 16132 Genova, Italy
| | | | - Arin Marchesi
- WPI Nano Life Science Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
- Department of Experimental and Clinical Medicine, Università Politecnica delle Marche, Via Tronto 10/a, 60126 Torrette di Ancona, Italy
| | - Filippo Galluzzi
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- The Open University Affiliated Research Centre at Istituto Italiano di Tecnologia (ARC@IIT), Via Morego 30, 16163 Genova, Italy
| | - Matteo Moschetta
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Raffaele Rubattino 81, 20134 Milano, Italy
| | - Andrea Rossini
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Raffaele Rubattino 81, 20134 Milano, Italy
| | - Simona Francia
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132 Genova, Italy
| | - Clemens M Franz
- WPI Nano Life Science Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Yulia Fok
- Aix-Marseille University, INSERM, DyNaMo, Turing Centre for Living Systems, 163 Avenue de Luminy, 13288 Marseille Cedex 09, France
| | - Claire Valotteau
- Aix-Marseille University, INSERM, DyNaMo, Turing Centre for Living Systems, 163 Avenue de Luminy, 13288 Marseille Cedex 09, France
| | - Giuseppe Maria Paternò
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Raffaele Rubattino 81, 20134 Milano, Italy
- Department of Physics, Politecnico di Milano, Piazza Leonardo Da Vinci, 32, 20133 Milan, Italy
| | - Lorena Redondo Morata
- Aix-Marseille University, INSERM, DyNaMo, Turing Centre for Living Systems, 163 Avenue de Luminy, 13288 Marseille Cedex 09, France
| | - Francesca Vacca
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132 Genova, Italy
| | - Sara Mattiello
- Department of Material Science, Bicocca University, Via Roberto Cozzi 55, 20126 Milano, Italy
| | - Arianna Magni
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Raffaele Rubattino 81, 20134 Milano, Italy
- Department of Physics, Politecnico di Milano, Piazza Leonardo Da Vinci, 32, 20133 Milan, Italy
| | - Luca Maragliano
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Luca Beverina
- Department of Material Science, Bicocca University, Via Roberto Cozzi 55, 20126 Milano, Italy
| | - Giuseppe Mattioli
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (CNR-ISM), Via Salaria km 29.300, 00015 Monterotondo (RM), Italy
| | - Guglielmo Lanzani
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Raffaele Rubattino 81, 20134 Milano, Italy
- Department of Physics, Politecnico di Milano, Piazza Leonardo Da Vinci, 32, 20133 Milan, Italy
| | - Pietro Baldelli
- Department of Experimental Medicine, University of Genova, Viale Benedetto XV 3, 16132 Genova, Italy
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132 Genova, Italy
| | - Elisabetta Colombo
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132 Genova, Italy
| | - Fabio Benfenati
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Largo Rosanna Benzi 10, 16132 Genova, Italy
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132 Genova, Italy
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17
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Rühl P, Nair AG, Gawande N, Dehiwalage SNCW, Münster L, Schönherr R, Heinemann SH. An Ultrasensitive Genetically Encoded Voltage Indicator Uncovers the Electrical Activity of Non-Excitable Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307938. [PMID: 38526185 PMCID: PMC11132041 DOI: 10.1002/advs.202307938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 02/10/2024] [Indexed: 03/26/2024]
Abstract
Most animal cell types are classified as non-excitable because they do not generate action potentials observed in excitable cells, such as neurons and muscle cells. Thus, resolving voltage signals in non-excitable cells demands sensors with exceptionally high voltage sensitivity. In this study, the ultrabright, ultrasensitive, and calibratable genetically encoded voltage sensor rEstus is developed using structure-guided engineering. rEstus is most sensitive in the resting voltage range of non-excitable cells and offers a 3.6-fold improvement in brightness change for fast voltage spikes over its precursor ASAP3. Using rEstus, it is uncovered that the membrane voltage in several non-excitable cell lines (A375, HEK293T, MCF7) undergoes spontaneous endogenous alterations on a second to millisecond timescale. Correlation analysis of these optically recorded voltage alterations provides a direct, real-time readout of electrical cell-cell coupling, showing that visually connected A375 and HEK293T cells are also largely electrically connected, while MCF7 cells are only weakly coupled. The presented work provides enhanced tools and methods for non-invasive voltage imaging in living cells and demonstrates that spontaneous endogenous membrane voltage alterations are not limited to excitable cells but also occur in a variety of non-excitable cell types.
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Affiliation(s)
- Philipp Rühl
- Center for Molecular Biomedicine, Department of Biophysics, Friedrich Schiller University Jena and Jena University Hospital, D-07745, Jena, Germany
| | - Anagha G Nair
- Center for Molecular Biomedicine, Department of Biophysics, Friedrich Schiller University Jena and Jena University Hospital, D-07745, Jena, Germany
| | - Namrata Gawande
- Center for Molecular Biomedicine, Department of Biophysics, Friedrich Schiller University Jena and Jena University Hospital, D-07745, Jena, Germany
| | - Sassrika N C W Dehiwalage
- Center for Molecular Biomedicine, Department of Biophysics, Friedrich Schiller University Jena and Jena University Hospital, D-07745, Jena, Germany
| | - Lukas Münster
- Center for Molecular Biomedicine, Department of Biophysics, Friedrich Schiller University Jena and Jena University Hospital, D-07745, Jena, Germany
| | - Roland Schönherr
- Center for Molecular Biomedicine, Department of Biophysics, Friedrich Schiller University Jena and Jena University Hospital, D-07745, Jena, Germany
| | - Stefan H Heinemann
- Center for Molecular Biomedicine, Department of Biophysics, Friedrich Schiller University Jena and Jena University Hospital, D-07745, Jena, Germany
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18
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Gupta P, Chandak R, Debnath A, Traner M, Watson BM, Huang H, Derami HG, Baldi H, Chakrabartty S, Raman B, Singamaneni S. Augmenting insect olfaction performance through nano-neuromodulation. NATURE NANOTECHNOLOGY 2024; 19:677-687. [PMID: 38272973 DOI: 10.1038/s41565-023-01592-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 12/08/2023] [Indexed: 01/27/2024]
Abstract
Biological olfactory systems are highly sensitive and selective, often outperforming engineered chemical sensors in highly complex and dynamic environments. As a result, there is much interest in using biological systems to build sensors. However, approaches to read-out information from biological systems, especially neural signals, tend to be suboptimal due to the number of electrodes that can be used and where these can be placed. Here we aim to overcome this suboptimality in neural information read-out by using a nano-enabled neuromodulation strategy to augment insect olfaction-based chemical sensors. By harnessing the photothermal properties of nanostructures and releasing a select neuromodulator on demand, we show that the odour-evoked response from the interrogated regions of the insect olfactory system can not only be enhanced but can also improve odour identification.
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Affiliation(s)
- Prashant Gupta
- Department of Mechanical Engineering and Materials Science, and Institute of Materials Science and Engineering, Washington University in St Louis, St Louis, MO, USA
| | - Rishabh Chandak
- Department of Biomedical Engineering, Washington University in St Louis, St Louis, MO, USA
| | - Avishek Debnath
- Department of Mechanical Engineering and Materials Science, and Institute of Materials Science and Engineering, Washington University in St Louis, St Louis, MO, USA
| | - Michael Traner
- Department of Biomedical Engineering, Washington University in St Louis, St Louis, MO, USA
| | - Brendan M Watson
- Department of Emergency Medicine, Washington University School of Medicine, St Louis, MO, USA
| | - Hengbo Huang
- Department of Biomedical Engineering, Washington University in St Louis, St Louis, MO, USA
- Department of Radiology, Washington University School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Hamed Gholami Derami
- Department of Mechanical Engineering and Materials Science, and Institute of Materials Science and Engineering, Washington University in St Louis, St Louis, MO, USA
| | - Harsh Baldi
- Department of Mechanical Engineering and Materials Science, and Institute of Materials Science and Engineering, Washington University in St Louis, St Louis, MO, USA
| | - Shantanu Chakrabartty
- Department of Electrical & Systems Engineering, Washington University in St Louis, St Louis, MO, USA
| | - Baranidharan Raman
- Department of Biomedical Engineering, Washington University in St Louis, St Louis, MO, USA.
| | - Srikanth Singamaneni
- Department of Mechanical Engineering and Materials Science, and Institute of Materials Science and Engineering, Washington University in St Louis, St Louis, MO, USA.
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19
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Stoddart PR, Begeng JM, Tong W, Ibbotson MR, Kameneva T. Nanoparticle-based optical interfaces for retinal neuromodulation: a review. Front Cell Neurosci 2024; 18:1360870. [PMID: 38572073 PMCID: PMC10987880 DOI: 10.3389/fncel.2024.1360870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Accepted: 03/04/2024] [Indexed: 04/05/2024] Open
Abstract
Degeneration of photoreceptors in the retina is a leading cause of blindness, but commonly leaves the retinal ganglion cells (RGCs) and/or bipolar cells extant. Consequently, these cells are an attractive target for the invasive electrical implants colloquially known as "bionic eyes." However, after more than two decades of concerted effort, interfaces based on conventional electrical stimulation approaches have delivered limited efficacy, primarily due to the current spread in retinal tissue, which precludes high-acuity vision. The ideal prosthetic solution would be less invasive, provide single-cell resolution and an ability to differentiate between different cell types. Nanoparticle-mediated approaches can address some of these requirements, with particular attention being directed at light-sensitive nanoparticles that can be accessed via the intrinsic optics of the eye. Here we survey the available known nanoparticle-based optical transduction mechanisms that can be exploited for neuromodulation. We review the rapid progress in the field, together with outstanding challenges that must be addressed to translate these techniques to clinical practice. In particular, successful translation will likely require efficient delivery of nanoparticles to stable and precisely defined locations in the retinal tissues. Therefore, we also emphasize the current literature relating to the pharmacokinetics of nanoparticles in the eye. While considerable challenges remain to be overcome, progress to date shows great potential for nanoparticle-based interfaces to revolutionize the field of visual prostheses.
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Affiliation(s)
- Paul R. Stoddart
- School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Hawthorn, VIC, Australia
| | - James M. Begeng
- School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Hawthorn, VIC, Australia
- Department of Biomedical Engineering, Faculty of Engineering & Information Technology, The University of Melbourne, Melbourne, VIC, Australia
| | - Wei Tong
- Department of Biomedical Engineering, Faculty of Engineering & Information Technology, The University of Melbourne, Melbourne, VIC, Australia
- School of Physics, The University of Melbourne, Melbourne, VIC, Australia
| | - Michael R. Ibbotson
- Department of Biomedical Engineering, Faculty of Engineering & Information Technology, The University of Melbourne, Melbourne, VIC, Australia
| | - Tatiana Kameneva
- School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Hawthorn, VIC, Australia
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20
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Bassetto CAZ, Pfeffermann J, Yadav R, Strassgschwandtner S, Glasnov T, Bezanilla F, Pohl P. Photolipid excitation triggers depolarizing optocapacitive currents and action potentials. Nat Commun 2024; 15:1139. [PMID: 38326372 PMCID: PMC10850502 DOI: 10.1038/s41467-024-45403-y] [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: 08/23/2023] [Accepted: 01/22/2024] [Indexed: 02/09/2024] Open
Abstract
Optically-induced changes in membrane capacitance may regulate neuronal activity without requiring genetic modifications. Previously, they mainly relied on sudden temperature jumps due to light absorption by membrane-associated nanomaterials or water. Yet, nanomaterial targeting or the required high infrared light intensities obstruct broad applicability. Now, we propose a very versatile approach: photolipids (azobenzene-containing diacylglycerols) mediate light-triggered cellular de- or hyperpolarization. As planar bilayer experiments show, the respective currents emerge from millisecond-timescale changes in bilayer capacitance. UV light changes photolipid conformation, which awards embedding plasma membranes with increased capacitance and evokes depolarizing currents. They open voltage-gated sodium channels in cells, generating action potentials. Blue light reduces the area per photolipid, decreasing membrane capacitance and eliciting hyperpolarization. If present, mechanosensitive channels respond to the increased mechanical membrane tension, generating large depolarizing currents that elicit action potentials. Membrane self-insertion of administered photolipids and focused illumination allows cell excitation with high spatiotemporal control.
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Affiliation(s)
- Carlos A Z Bassetto
- Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL, 60637, USA
| | - Juergen Pfeffermann
- Institute of Biophysics, Johannes Kepler University Linz, Gruberstraße 40, 4020, Linz, Austria
| | - Rohit Yadav
- Institute of Biophysics, Johannes Kepler University Linz, Gruberstraße 40, 4020, Linz, Austria
| | | | - Toma Glasnov
- Institute of Chemistry, Karl-Franzens-University, Graz, Austria
| | - Francisco Bezanilla
- Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL, 60637, USA.
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile.
| | - Peter Pohl
- Institute of Biophysics, Johannes Kepler University Linz, Gruberstraße 40, 4020, Linz, Austria.
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21
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Gao Y, Guo Y, Yang Y, Tang Y, Wang B, Yan Q, Chen X, Cai J, Fang L, Xiong Z, Gao F, Wu C, Wang J, Tang J, Shi L, Li D. Magnetically Manipulated Optoelectronic Hybrid Microrobots for Optically Targeted Non-Genetic Neuromodulation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2305632. [PMID: 37805826 DOI: 10.1002/adma.202305632] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/08/2023] [Indexed: 10/09/2023]
Abstract
Optically controlled neuromodulation is a promising approach for basic research of neural circuits and the clinical treatment of neurological diseases. However, developing a non-invasive and well-controllable system to deliver accurate and effective neural stimulation is challenging. Micro/nanorobots have shown great potential in various biomedical applications because of their precise controllability. Here, a magnetically-manipulated optoelectronic hybrid microrobot (MOHR) is presented for optically targeted non-genetic neuromodulation. By integrating the magnetic component into the metal-insulator-semiconductor junction design, the MOHR has excellent magnetic controllability and optoelectronic properties. The MOHR displays a variety of magnetic manipulation modes that enables precise and efficient navigation in different biofluids. Furthermore, the MOHR could achieve precision neuromodulation at the single-cell level because of its accurate targeting ability. This neuromodulation is achieved by the MOHR's photoelectric response to visible light irradiation, which enhances the excitability of the targeted cells. Finally, it is shown that the well-controllable MOHRs effectively restore neuronal activity in neurons damaged by β-amyloid, a pathogenic agent of Alzheimer's disease. By coupling precise controllability with efficient optoelectronic properties, the hybrid microrobot system is a promising strategy for targeted on-demand optical neuromodulation.
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Affiliation(s)
- Yuxin Gao
- College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, P. R. China
- Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou, 510632, P. R. China
| | - Yuan Guo
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou, 510632, P. R. China
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou, 510632, P. R. China
| | - Yaorong Yang
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou, 510632, P. R. China
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou, 510632, P. R. China
| | - Yanping Tang
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou, 510632, P. R. China
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou, 510632, P. R. China
| | - Biao Wang
- School of Information Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
- Shanghai Clinical Research and Trial Center, Shanghai, 201210, P. R. China
| | - Qihang Yan
- Wireless and Smart Bioelectronics Lab, School of Biomedical Engineering, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Xiyu Chen
- School of Information Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
- Shanghai Clinical Research and Trial Center, Shanghai, 201210, P. R. China
| | - Junxiang Cai
- School of Information Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
- Shanghai Clinical Research and Trial Center, Shanghai, 201210, P. R. China
| | - Li Fang
- College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, P. R. China
| | - Ze Xiong
- Wireless and Smart Bioelectronics Lab, School of Biomedical Engineering, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Fei Gao
- School of Information Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
- Shanghai Clinical Research and Trial Center, Shanghai, 201210, P. R. China
| | - Changjin Wu
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, 999077, P. R. China
| | - Jizhuang Wang
- College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, P. R. China
- Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou, 510632, P. R. China
| | - Jinyao Tang
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, 999077, P. R. China
| | - Lei Shi
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou, 510632, P. R. China
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou, 510632, P. R. China
| | - Dan Li
- College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, P. R. China
- Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou, 510632, P. R. China
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22
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Yang D, Ren Q, Nie J, Zhang Y, Wu H, Chang Z, Wang B, Dai J, Fang Y. Black Phosphorus Flake-Enabled Wireless Neuromodulation for Epilepsy Treatment. NANO LETTERS 2024; 24:1052-1061. [PMID: 37955335 DOI: 10.1021/acs.nanolett.3c03472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Epilepsy is a prevalent and severe neurological disorder and generally requires prolonged electrode implantation and tether brain stimulation in refractory cases. However, implants may cause potential chronic immune inflammation and permanent tissue damage due to material property mismatches with soft brain tissue. Here, we demonstrated a nanomaterial-enabled near-infrared (NIR) neuromodulation approach to provide nongenetic and nonimplantable therapeutic benefits in epilepsy mouse models. Our study showed that crystal-exfoliated photothermal black phosphorus (BP) flakes could enhance neural activity by altering the membrane capacitive currents in hippocampus neurons through NIR photothermal neuromodulation. Optical stimulation facilitated by BP flakes in hippocampal slices evoked action potentials with a high spatiotemporal resolution. Furthermore, BP flake-enabled NIR neuromodulation of hippocampus neural circuits can suppress epileptic signals in epilepsy model mice with minimal invasiveness and high biocompatibility. Consequently, nanomaterial-enabled NIR neuromodulation may open up opportunities for nonimplantable optical therapy of epilepsy in nontransgenic organisms.
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Affiliation(s)
- Deqi Yang
- Research Center for Translational Medicine, Shanghai East Hospital affiliated to Tongji University School of Medicine; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, China
| | - Qinjuan Ren
- Research Center for Translational Medicine, Shanghai East Hospital affiliated to Tongji University School of Medicine; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, China
| | - Jianfang Nie
- Research Center for Translational Medicine, Shanghai East Hospital affiliated to Tongji University School of Medicine; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, China
| | - Ya Zhang
- Research Center for Translational Medicine, Shanghai East Hospital affiliated to Tongji University School of Medicine; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, China
| | - Haofan Wu
- Research Center for Translational Medicine, Shanghai East Hospital affiliated to Tongji University School of Medicine; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, China
| | - Zhiqiang Chang
- Research Center for Translational Medicine, Shanghai East Hospital affiliated to Tongji University School of Medicine; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, China
| | - Bingfang Wang
- Research Center for Translational Medicine, Shanghai East Hospital affiliated to Tongji University School of Medicine; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, China
| | - Jing Dai
- Research Center for Translational Medicine, Shanghai East Hospital affiliated to Tongji University School of Medicine; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, China
| | - Yin Fang
- Research Center for Translational Medicine, Shanghai East Hospital affiliated to Tongji University School of Medicine; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200092, China
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23
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Ren H, Cheng Y, Wen G, Wang J, Zhou M. Emerging optogenetics technologies in biomedical applications. SMART MEDICINE 2023; 2:e20230026. [PMID: 39188295 PMCID: PMC11235740 DOI: 10.1002/smmd.20230026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 09/17/2023] [Indexed: 08/28/2024]
Abstract
Optogenetics is a cutting-edge technology that merges light control and genetics to achieve targeted control of tissue cells. Compared to traditional methods, optogenetics offers several advantages in terms of time and space precision, accuracy, and reduced damage to the research object. Currently, optogenetics is primarily used in pathway research, drug screening, gene expression regulation, and the stimulation of molecule release to treat various diseases. The selection of light-sensitive proteins is the most crucial aspect of optogenetic technology; structural changes occur or downstream channels are activated to achieve signal transmission or factor release, allowing efficient and controllable disease treatment. In this review, we examine the extensive research conducted in the field of biomedicine concerning optogenetics, including the selection of light-sensitive proteins, the study of carriers and delivery devices, and the application of disease treatment. Additionally, we offer critical insights and future implications of optogenetics in the realm of clinical medicine.
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Affiliation(s)
- Haozhen Ren
- Department of Hepatobiliary SurgeryHepatobiliary InstituteNanjing Drum Tower HospitalMedical SchoolNanjing UniversityNanjingChina
| | - Yi Cheng
- Department of Vascular SurgeryThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjingChina
| | - Gaolin Wen
- Department of Hepatobiliary SurgeryHepatobiliary InstituteNanjing Drum Tower HospitalMedical SchoolNanjing UniversityNanjingChina
| | - Jinglin Wang
- Department of Hepatobiliary SurgeryHepatobiliary InstituteNanjing Drum Tower HospitalMedical SchoolNanjing UniversityNanjingChina
| | - Min Zhou
- Department of Vascular SurgeryThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjingChina
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24
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Movahedpour A, Taghvaeefar R, Asadi‐Pooya A, Karami Y, Tavasolian R, Khatami SH, Soltani Fard E, Taghvimi S, Karami N, Rahimi Jaberi K, Taheri‐Anganeh M, Ghasemi H. Nano-delivery systems as a promising therapeutic potential for epilepsy: Current status and future perspectives. CNS Neurosci Ther 2023; 29:3150-3159. [PMID: 37452477 PMCID: PMC10580365 DOI: 10.1111/cns.14355] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/13/2023] [Accepted: 06/30/2023] [Indexed: 07/18/2023] Open
Abstract
Epilepsy is a common chronic neurological disorder caused by aberrant neuronal electrical activity. Antiseizure medications (ASMs) are the first line of treatment for people with epilepsy (PWE). However, their effectiveness may be limited by their inability to cross the blood-brain barrier (BBB), among many other potential underpinnings for drug resistance in epilepsy. Therefore, there is a need to overcome this issue and, hopefully, improve the effectiveness of ASMs. Recently, synthetic nanoparticle-based drug delivery systems have received attention for improving the effectiveness of ASMs due to their ability to cross the BBB. Furthermore, exosomes have emerged as a promising generation of drug delivery systems because of their potential benefits over synthetic nanoparticles. In this narrative review, we focus on various synthetic nanoparticles that have been studied to deliver ASMs. Furthermore, the benefits and limitations of each nano-delivery system have been discussed. Finally, we discuss exosomes as potentially promising delivery tools for treating epilepsy.
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Affiliation(s)
| | | | - Ali‐Akbar Asadi‐Pooya
- Epilepsy Research CenterShiraz University of Medical SciencesShirazIran
- Department of Neurology, Jefferson Comprehensive Epilepsy CenterThomas Jefferson UniversityPhiladelphiaPennsylvaniaUSA
| | - Yousof Karami
- Department of Clinical Science, Faculty of Veterinary MedicineShahid Bahonar University of KermanKermanIran
| | - Ronia Tavasolian
- Department of Clinical Science and NutritionUniversity of ChesterChesterUK
| | - Seyyed Hossein Khatami
- Department of Clinical Biochemistry, School of MedicineShahid Beheshti University of Medical SciencesTehranIran
| | - Elahe Soltani Fard
- Department of Molecular Medicine, School of Advanced TechnologiesShahrekord University of Medical SciencesShahrekordIran
| | - Sina Taghvimi
- Department of Biology, Faculty of ScienceShahid Chamran University of AhvazAhvazIran
| | - Neda Karami
- TU Wien, Institute of Solid State ElectronicsViennaAustria
| | - Khojaste Rahimi Jaberi
- Department of Neuroscience, School of Advanced Medical Sciences and TechnologiesShiraz University of Medical SciencesShirazIran
| | - Mortaza Taheri‐Anganeh
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Research InstituteUrmia University of Medical SciencesUrmiaIran
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25
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Gupta P, Rathi P, Gupta R, Baldi H, Coquerel Q, Debnath A, Derami HG, Raman B, Singamaneni S. Neuronal maturation-dependent nano-neuro interaction and modulation. NANOSCALE HORIZONS 2023; 8:1537-1555. [PMID: 37672212 PMCID: PMC10615777 DOI: 10.1039/d3nh00258f] [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] [Indexed: 09/07/2023]
Abstract
Nanotechnology-enabled neuromodulation is a promising minimally-invasive tool in neuroscience and engineering for both fundamental studies and clinical applications. However, the nano-neuro interaction at different stages of maturation of a neural network and its implications for the nano-neuromodulation remain unclear. Here, we report heterogeneous to homogeneous transformation of neuromodulation in a progressively maturing neural network. Utilizing plasmonic-fluors as ultrabright fluorescent nanolabels, we reveal that negative surface charge of nanoparticles renders selective nano-neuro interaction with a strong correlation between the maturation stage of the individual neurons in the neural network and the density of the nanoparticles bound on the neurons. In stark contrast to homogeneous neuromodulation in a mature neural network reported so far, the maturation-dependent density of the nanoparticles bound to neurons in a developing neural network resulted in a heterogeneous optical neuromodulation (i.e., simultaneous excitation and inhibition of neural network activity). This study advances our understanding of nano-neuro interactions and nano-neuromodulation with potential applications in minimally-invasive technologies for treating neuronal disorders in parts of the mammalian brain where neurogenesis persists throughout aging.
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Affiliation(s)
- Prashant Gupta
- Department of Mechanical Engineering and Materials Science, and Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA.
| | - Priya Rathi
- Department of Mechanical Engineering and Materials Science, and Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA.
| | - Rohit Gupta
- Department of Mechanical Engineering and Materials Science, and Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA.
| | - Harsh Baldi
- Department of Mechanical Engineering and Materials Science, and Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA.
| | - Quentin Coquerel
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA.
| | - Avishek Debnath
- Department of Mechanical Engineering and Materials Science, and Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA.
| | - Hamed Gholami Derami
- Department of Mechanical Engineering and Materials Science, and Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA.
| | - Baranidharan Raman
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA.
| | - Srikanth Singamaneni
- Department of Mechanical Engineering and Materials Science, and Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA.
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26
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Cui H, Zhao S, Hong G. Wireless deep-brain neuromodulation using photovoltaics in the second near-infrared spectrum. DEVICE 2023; 1:100113. [PMID: 37990694 PMCID: PMC10659575 DOI: 10.1016/j.device.2023.100113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Conventional electrical neuromodulation techniques are constrained by the need for invasive implants in neural tissues, whereas methods using optogenetic are subjected to genetic alterations and hampered by the poor tissue penetration of visible light. Photovoltaic neuromodulation using light from the second near-infrared (NIR-II) spectrum, which minimizes scattering and enhances tissue penetration, shows promise as an alternative to existing neuromodulation technologies. NIR-II light has been used in deep-tissue imaging and in deep-brain photothermal neuromodulation via nanotransducers. This Perspective will provide an overview for the underpinning mechanisms of photovoltaic neuromodulation and identify avenues for future research in materials science and bioengineering that can further advance NIR-II photovoltaic neuromodulation methods.
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Affiliation(s)
- Han Cui
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
- Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, 94305, USA
| | - Su Zhao
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
- Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, 94305, USA
| | - Guosong Hong
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
- Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, 94305, USA
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27
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Li W, Huberman-Shlaes J, Tian B. Perspectives on Multiscale Colloid-Based Materials for Biomedical Applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:13759-13769. [PMID: 37733490 PMCID: PMC10552542 DOI: 10.1021/acs.langmuir.3c01274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Indexed: 09/23/2023]
Abstract
Colloid-based materials with tunable biophysical and chemical properties have demonstrated significant potential in a wide range of biomedical applications. The ability to manipulate these properties across various size scales, encompassing nano-, micro-, and macrodomains, is essential to enhancing current biomedical technologies and facilitating the development of novel applications. Focusing on material design, we explore various synthetic colloid-based materials at the nano- and microscales and investigate their correlation with biological systems. Furthermore, we examine the utilization of the self-assembly of colloids to construct monolithic and macroscopic materials suitable for biointerfaces. By probing the potential of spatial imaging and localized drug delivery, enhanced functionality, and colloidal manipulation, we highlight emerging opportunities that could significantly advance the field of colloid-based materials in biomedical applications.
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Affiliation(s)
- Wen Li
- Department
of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
| | - Judah Huberman-Shlaes
- Department
of Biology, The University of Chicago, Chicago, Illinois 60637, United States
| | - Bozhi Tian
- Department
of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
- The
James Franck Institute, The University of
Chicago, Chicago, Illinois 60637, United States
- The
Institute for Biophysical Dynamics, The
University of Chicago, Chicago, Illinois 60637, United States
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Bassetto CAZ, Pfeffermann J, Yadav R, Strassgschwandtner S, Glasnov T, Bezanilla F, Pohl P. Photolipid excitation triggers depolarizing optocapacitive currents and action potentials. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.11.552849. [PMID: 37645959 PMCID: PMC10462005 DOI: 10.1101/2023.08.11.552849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Optically-induced changes in membrane capacitance may regulate neuronal activity without requiring genetic modifications. Previously, they mainly relied on sudden temperature jumps due to light absorption by membrane-associated nanomaterials or water. Yet, nanomaterial targeting or the required high infrared light intensities obstruct broad applicability. Now, we propose a very versatile approach: photolipids (azobenzene-containing diacylglycerols) mediate light-triggered cellular de- or hyperpolarization. As planar bilayer experiments show, the respective currents emerge from millisecond-timescale changes in bilayer capacitance. UV light changes photolipid conformation, which awards embedding plasma membranes with increased capacitance and evokes depolarizing currents. They open voltage-gated sodium channels in cells, generating action potentials. Blue light reduces the area per photolipid, decreasing membrane capacitance and eliciting hyperpolarization. If present, mechanosensitive channels respond to the increased mechanical membrane tension, generating large depolarizing currents that elicit action potentials. Membrane self-insertion of administered photolipids and focused illumination allows cell excitation with high spatiotemporal control.
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Affiliation(s)
- Carlos A. Z. Bassetto
- Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL 60637, USA
| | - Juergen Pfeffermann
- Institute of Biophysics, Johannes Kepler University Linz, Gruberstraße 40, 4020 Linz, Austria
| | - Rohit Yadav
- Institute of Biophysics, Johannes Kepler University Linz, Gruberstraße 40, 4020 Linz, Austria
| | | | - Toma Glasnov
- Institute of Chemistry, Karl-Franzens-University, Graz, Austria
| | - Francisco Bezanilla
- Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL 60637, USA
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
| | - Peter Pohl
- Institute of Biophysics, Johannes Kepler University Linz, Gruberstraße 40, 4020 Linz, Austria
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Gomez A, Muzzio N, Dudek A, Santi A, Redondo C, Zurbano R, Morales R, Romero G. Elucidating Mechanotransduction Processes During Magnetomechanical Neuromodulation Mediated by Magnetic Nanodiscs. Cell Mol Bioeng 2023; 16:283-298. [PMID: 37811002 PMCID: PMC10550892 DOI: 10.1007/s12195-023-00786-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 09/07/2023] [Indexed: 10/10/2023] Open
Abstract
Purpose Noninvasive cell-type-specific manipulation of neural signaling is critical in basic neuroscience research and in developing therapies for neurological disorders. Magnetic nanotechnologies have emerged as non-invasive neuromodulation approaches with high spatiotemporal control. We recently developed a wireless force-induced neurostimulation platform utilizing micro-sized magnetic discs (MDs) and low-intensity alternating magnetic fields (AMFs). When targeted to the cell membrane, MDs AMFs-triggered mechanoactuation enhances specific cell membrane receptors resulting in cell depolarization. Although promising, it is critical to understand the role of mechanical forces in magnetomechanical neuromodulation and their transduction to molecular signals for its optimization and future translation. Methods MDs are fabricated using top-down lithography techniques, functionalized with polymers and antibodies, and characterized for their physical properties. Primary cortical neurons co-cultured with MDs and transmembrane protein chemical inhibitors are subjected to 20 s pulses of weak AMFs (18 mT, 6 Hz). Calcium cell activity is recorded during AMFs stimulation. Results Neuronal activity in primary rat cortical neurons is evoked by the AMFs-triggered actuation of targeted MDs. Ion channel chemical inhibition suggests that magnetomechanical neuromodulation results from MDs actuation on Piezo1 and TRPC1 mechanosensitive ion channels. The actuation mechanisms depend on MDs size, with cell membrane stretch and stress caused by the MDs torque being the most dominant. Conclusions Magnetomechanical neuromodulation represents a tremendous potential since it fulfills the requirements of negligible heating (ΔT < 0.1 °C) and weak AMFs (< 100 Hz), which are limiting factors in the development of therapies and the design of clinical equipment. Supplementary Information The online version contains supplementary material available at 10.1007/s12195-023-00786-8.
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Affiliation(s)
- Amanda Gomez
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, 1 UTSA Circle, San Antonio, TX 78249 USA
| | - Nicolas Muzzio
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, 1 UTSA Circle, San Antonio, TX 78249 USA
| | - Ania Dudek
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, 1 UTSA Circle, San Antonio, TX 78249 USA
| | - Athena Santi
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, 1 UTSA Circle, San Antonio, TX 78249 USA
| | - Carolina Redondo
- Department of Physical Chemistry, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
| | - Raquel Zurbano
- Department of Physical Chemistry, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
| | - Rafael Morales
- Department of Physical Chemistry, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
- BCMaterials, 48940 Leioa, Spain
- IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain
| | - Gabriela Romero
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, 1 UTSA Circle, San Antonio, TX 78249 USA
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30
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Lee S, Jiao M, Zhang Z, Yu Y. Nanoparticles for Interrogation of Cell Signaling. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2023; 16:333-351. [PMID: 37314874 PMCID: PMC10627408 DOI: 10.1146/annurev-anchem-092822-085852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Cell functions rely on signal transduction-the cascades of molecular interactions and biochemical reactions that relay extracellular signals to the cell interior. Dissecting principles governing the signal transduction process is critical for the fundamental understanding of cell physiology and the development of biomedical interventions. The complexity of cell signaling is, however, beyond what is accessible by conventional biochemistry assays. Thanks to their unique physical and chemical properties, nanoparticles (NPs) have been increasingly used for the quantitative measurement and manipulation of cell signaling. Even though research in this area is still in its infancy, it has the potential to yield new, paradigm-shifting knowledge of cell biology and lead to biomedical innovations. To highlight this importance, we summarize in this review studies that pioneered the development and application of NPs for cell signaling, from quantitative measurements of signaling molecules to spatiotemporal manipulation of cell signal transduction.
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Affiliation(s)
- Seonik Lee
- Department of Chemistry, Indiana University, Bloomington, Indiana, USA;
| | - Mengchi Jiao
- Department of Chemistry, Indiana University, Bloomington, Indiana, USA;
| | - Zihan Zhang
- Department of Chemistry, Indiana University, Bloomington, Indiana, USA;
| | - Yan Yu
- Department of Chemistry, Indiana University, Bloomington, Indiana, USA;
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31
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Karatum O, Han M, Erdogan ET, Karamursel S, Nizamoglu S. Physical mechanisms of emerging neuromodulation modalities. J Neural Eng 2023; 20:031001. [PMID: 37224804 DOI: 10.1088/1741-2552/acd870] [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: 11/16/2022] [Accepted: 05/24/2023] [Indexed: 05/26/2023]
Abstract
One of the ultimate goals of neurostimulation field is to design materials, devices and systems that can simultaneously achieve safe, effective and tether-free operation. For that, understanding the working mechanisms and potential applicability of neurostimulation techniques is important to develop noninvasive, enhanced, and multi-modal control of neural activity. Here, we review direct and transduction-based neurostimulation techniques by discussing their interaction mechanisms with neurons via electrical, mechanical, and thermal means. We show how each technique targets modulation of specific ion channels (e.g. voltage-gated, mechanosensitive, heat-sensitive) by exploiting fundamental wave properties (e.g. interference) or engineering nanomaterial-based systems for efficient energy transduction. Overall, our review provides a detailed mechanistic understanding of neurostimulation techniques together with their applications toin vitro, in vivo, and translational studies to guide the researchers toward developing more advanced systems in terms of noninvasiveness, spatiotemporal resolution, and clinical applicability.
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Affiliation(s)
- Onuralp Karatum
- Department of Electrical and Electronics Engineering, Koc University, Istanbul 34450, Turkey
| | - Mertcan Han
- Department of Electrical and Electronics Engineering, Koc University, Istanbul 34450, Turkey
| | - Ezgi Tuna Erdogan
- Department of Physiology, Koc University School of Medicine, Istanbul 34450, Turkey
| | - Sacit Karamursel
- Department of Physiology, Koc University School of Medicine, Istanbul 34450, Turkey
| | - Sedat Nizamoglu
- Department of Electrical and Electronics Engineering, Koc University, Istanbul 34450, Turkey
- Department of Biomedical Science and Engineering, Koc University, Istanbul 34450, Turkey
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32
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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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33
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Sung K, Jo S, Lee J, Park JH, Park YH, Moon J, Kim SJ, Jeong J, Lee J, Eom K. Computational analysis of multichannel magnetothermal neural stimulation using magnetic resonator array. Biomed Eng Lett 2023; 13:209-219. [PMID: 37124115 PMCID: PMC10130299 DOI: 10.1007/s13534-023-00267-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 01/24/2023] [Accepted: 02/01/2023] [Indexed: 02/12/2023] Open
Abstract
Heating nanoparticles with a magnetic field could facilitate selective remote control of neural activity in deep tissue. However, current magnetothermal stimulation approaches are limited to single-channel stimulation. Here, we investigated various designs for multichannel magnetothermal stimulation based on an array of resonant coils that are driven by a single loop coil. Using a tuning capacitor that allows resonant coils to resonate at the operating frequency, each coil's ON and OFF resonance can be controlled, enabling us to select stimulation channels. We found that smaller inner diameters of resonant coils produce more localized magnetic fields while larger coils produce magnetic fields over a longer distance. The constructed multichannel resonant coil arrays can provide a high enough magnetic field intensity to raise the temperature of nanoparticles by 8 °C when we apply 35.2 W into the loop coil that is spaced 1 mm from the target neurons. This multichannel stimulation using a simple resonant circuit approach would be useful for clinical applications of magnetothermal neural stimulation.
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Affiliation(s)
- Kyungmo Sung
- Department of Electronics Engineering, College of Engineering, Pusan National University, Busan, 46241 Republic of Korea
| | - Seonghoon Jo
- Department of Electronics Engineering, College of Engineering, Pusan National University, Busan, 46241 Republic of Korea
| | - Jaewook Lee
- Department of Electronics Engineering, College of Engineering, Pusan National University, Busan, 46241 Republic of Korea
| | - Jeong Hoan Park
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, 117583 Singapore
| | - Young Hoon Park
- Department of Electronics Engineering, College of Engineering, Pusan National University, Busan, 46241 Republic of Korea
| | - Jeongjoo Moon
- Department of Electronics Engineering, College of Engineering, Pusan National University, Busan, 46241 Republic of Korea
| | - Sung June Kim
- School of Electrical and Computer Engineering, Seoul National University, Seoul, 08826 Republic of Korea
| | - Joonsoo Jeong
- School of Biomedical Convergence Engineering, Pusan National University, Yangsan, 50612 Republic of Korea
| | - Jonghwan Lee
- Center for Biomedical Engineering, School of Engineering, Brown University, Providence, RI 02912 USA
- Carney Institute for Brain Science, Brown University, Providence, RI 02912 USA
| | - Kyungsik Eom
- Department of Electronics Engineering, College of Engineering, Pusan National University, Busan, 46241 Republic of Korea
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34
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Wu X, Yang F, Cai S, Pu K, Hong G. Nanotransducer-Enabled Deep-Brain Neuromodulation with NIR-II Light. ACS NANO 2023; 17:7941-7952. [PMID: 37079455 DOI: 10.1021/acsnano.2c12068] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The second near-infrared window (NIR-II window), which ranges from 1000 to 1700 nm in wavelength, exhibits distinctive advantages of reduced light scattering and thus deep penetration in biological tissues in comparison to the visible spectrum. The NIR-II window has been widely employed for deep-tissue fluorescence imaging in the past decade. More recently, deep-brain neuromodulation has been demonstrated in the NIR-II window by leveraging nanotransducers that can efficiently convert brain-penetrant NIR-II light into heat. In this Perspective, we discuss the principles and potential applications of this NIR-II deep-brain neuromodulation technique, together with its advantages and limitations compared with other existing optical methods for deep-brain neuromodulation. We also point out a few future directions where the advances in materials science and bioengineering can expand the capability and utility of NIR-II neuromodulation methods.
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Affiliation(s)
- Xiang Wu
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, USA
- Wu Tsai Neurosciences Institute, Stanford University, Stanford, California 94305, USA
| | - Fan Yang
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, USA
- Wu Tsai Neurosciences Institute, Stanford University, Stanford, California 94305, USA
| | - Sa Cai
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, USA
- Wu Tsai Neurosciences Institute, Stanford University, Stanford, California 94305, USA
| | - Kanyi Pu
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore 637457, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 636921, Singapore
| | - Guosong Hong
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, USA
- Wu Tsai Neurosciences Institute, Stanford University, Stanford, California 94305, USA
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35
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Rodrigues AF, Rebelo C, Reis T, Simões S, Bernardino L, Peça J, Ferreira L. Engineering optical tools for remotely controlled brain stimulation and regeneration. Biomater Sci 2023; 11:3034-3050. [PMID: 36947145 DOI: 10.1039/d2bm02059a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2023]
Abstract
Neurological disorders are one of the world's leading medical and societal challenges due to the lack of efficacy of the first line treatment. Although pharmacological and non-pharmacological interventions have been employed with the aim of regulating neuronal activity and survival, they have failed to avoid symptom relapse and disease progression in the vast majority of patients. In the last 5 years, advanced drug delivery systems delivering bioactive molecules and neuromodulation strategies have been developed to promote tissue regeneration and remodel neuronal circuitry. However, both approaches still have limited spatial and temporal precision over the desired target regions. While external stimuli such as electromagnetic fields and ultrasound have been employed in the clinic for non-invasive neuromodulation, they do not have the capability of offering single-cell spatial resolution as light stimulation. Herein, we review the latest progress in this area of study and discuss the prospects of using light-responsive nanomaterials to achieve on-demand delivery of drugs and neuromodulation, with the aim of achieving brain stimulation and regeneration.
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Affiliation(s)
- Artur Filipe Rodrigues
- Center for Neurosciences and Cell Biology, Center for Innovative Biomedicine and Biotechnology, University of Coimbra, 3000-517 Coimbra, Portugal.
- Institute of Interdisciplinary Research, University of Coimbra, 3000-354 Coimbra, Portugal
| | - Catarina Rebelo
- Center for Neurosciences and Cell Biology, Center for Innovative Biomedicine and Biotechnology, University of Coimbra, 3000-517 Coimbra, Portugal.
- Institute of Interdisciplinary Research, University of Coimbra, 3000-354 Coimbra, Portugal
- Faculty of Medicine, Pólo das Ciências da Saúde, Unidade Central, University of Coimbra, 3000-354 Coimbra, Portugal.
| | - Tiago Reis
- Center for Neurosciences and Cell Biology, Center for Innovative Biomedicine and Biotechnology, University of Coimbra, 3000-517 Coimbra, Portugal.
- Institute of Interdisciplinary Research, University of Coimbra, 3000-354 Coimbra, Portugal
- Faculty of Medicine, Pólo das Ciências da Saúde, Unidade Central, University of Coimbra, 3000-354 Coimbra, Portugal.
| | - Susana Simões
- Center for Neurosciences and Cell Biology, Center for Innovative Biomedicine and Biotechnology, University of Coimbra, 3000-517 Coimbra, Portugal.
- Institute of Interdisciplinary Research, University of Coimbra, 3000-354 Coimbra, Portugal
- Faculty of Medicine, Pólo das Ciências da Saúde, Unidade Central, University of Coimbra, 3000-354 Coimbra, Portugal.
| | - Liliana Bernardino
- Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, 6201-506 Covilhã, Portugal
| | - João Peça
- Center for Neurosciences and Cell Biology, Center for Innovative Biomedicine and Biotechnology, University of Coimbra, 3000-517 Coimbra, Portugal.
- Institute of Interdisciplinary Research, University of Coimbra, 3000-354 Coimbra, Portugal
- Faculty of Medicine, Pólo das Ciências da Saúde, Unidade Central, University of Coimbra, 3000-354 Coimbra, Portugal.
| | - Lino Ferreira
- Center for Neurosciences and Cell Biology, Center for Innovative Biomedicine and Biotechnology, University of Coimbra, 3000-517 Coimbra, Portugal.
- Institute of Interdisciplinary Research, University of Coimbra, 3000-354 Coimbra, Portugal
- Faculty of Medicine, Pólo das Ciências da Saúde, Unidade Central, University of Coimbra, 3000-354 Coimbra, Portugal.
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Baričević Z, Ayar Z, Leitao SM, Mladinic M, Fantner GE, Ban J. Label-Free Long-Term Methods for Live Cell Imaging of Neurons: New Opportunities. BIOSENSORS 2023; 13:404. [PMID: 36979616 PMCID: PMC10046152 DOI: 10.3390/bios13030404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 06/18/2023]
Abstract
Time-lapse light microscopy combined with in vitro neuronal cultures has provided a significant contribution to the field of Developmental Neuroscience. The establishment of the neuronal polarity, i.e., formation of axons and dendrites, key structures responsible for inter-neuronal signaling, was described in 1988 by Dotti, Sullivan and Banker in a milestone paper that continues to be cited 30 years later. In the following decades, numerous fluorescently labeled tags and dyes were developed for live cell imaging, providing tremendous advancements in terms of resolution, acquisition speed and the ability to track specific cell structures. However, long-term recordings with fluorescence-based approaches remain challenging because of light-induced phototoxicity and/or interference of tags with cell physiology (e.g., perturbed cytoskeletal dynamics) resulting in compromised cell viability leading to cell death. Therefore, a label-free approach remains the most desirable method in long-term imaging of living neurons. In this paper we will focus on label-free high-resolution methods that can be successfully used over a prolonged period. We propose novel tools such as scanning ion conductance microscopy (SICM) or digital holography microscopy (DHM) that could provide new insights into live cell dynamics during neuronal development and regeneration after injury.
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Affiliation(s)
- Zrinko Baričević
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, Croatia; (Z.B.); (M.M.)
| | - Zahra Ayar
- Laboratory for Bio- and Nano-Instrumentation, Institute of Bioengineering, School of Engineering, Swiss Federal Institute of Technology Lausanne (EPFL), 1015 Lausanne, Switzerland; (Z.A.); (S.M.L.)
| | - Samuel M. Leitao
- Laboratory for Bio- and Nano-Instrumentation, Institute of Bioengineering, School of Engineering, Swiss Federal Institute of Technology Lausanne (EPFL), 1015 Lausanne, Switzerland; (Z.A.); (S.M.L.)
| | - Miranda Mladinic
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, Croatia; (Z.B.); (M.M.)
| | - Georg E. Fantner
- Laboratory for Bio- and Nano-Instrumentation, Institute of Bioengineering, School of Engineering, Swiss Federal Institute of Technology Lausanne (EPFL), 1015 Lausanne, Switzerland; (Z.A.); (S.M.L.)
| | - Jelena Ban
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, Croatia; (Z.B.); (M.M.)
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37
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Soloviev A, Ivanova I, Sydorenko V, Sukhanova K, Melnyk M, Dryn D, Zholos A. Calcium-dependent modulation of BK Ca channel activity induced by plasmonic gold nanoparticles in pulmonary artery smooth muscle cells and hippocampal neurons. Acta Physiol (Oxf) 2023; 237:e13922. [PMID: 36599422 DOI: 10.1111/apha.13922] [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: 03/25/2022] [Revised: 12/07/2022] [Accepted: 01/02/2023] [Indexed: 01/06/2023]
Abstract
AIM Gold nanoparticles are widely used for biomedical applications, but the precise molecular mechanism of their interaction with cellular structures is still unclear. Assuming that intracellular calcium fluctuations associated with surface plasmon-induced calcium entry could modulate the activity of potassium channels, we studied the effect of 5 nm gold nanoparticles on calcium-dependent potassium channels and associated calcium signaling in freshly isolated rat pulmonary artery smooth muscle cells and cultured hippocampal neurons. METHODS Outward potassium currents were recorded using patch-clamp techniques. Changes in intracellular calcium concentration were measured using the high affinity Ca2+ fluorescent indicator fluo-3 and laser confocal microscope. RESULTS In pulmonary artery smooth muscle cells, plasmonic gold nanoparticles increased the amplitude of currents via large-conductance Ca2+ -activated potassium channels, which was potentiated by green laser irradiation near plasmon resonance wavelength (532 nm). Buffering of intracellular free calcium with ethylene glycol-bis-N,N,N',N'-tetraacetic acid (EGTA) abolished these effects. Furthermore, using confocal laser microscopy it was found that application of gold nanoparticles caused oscillations of intracellular calcium concentration that were decreasing in amplitude with time. In cultured hippocampal neurons gold nanoparticles inhibited the effect of EGTA slowing down the decline of the BKCa current while partially restoring the amplitude of the slow after hyperpolarizing currents. CONCLUSION We conclude that fluctuations in intracellular calcium can modulate plasmonic gold nanoparticles-induced gating of BKCa channels in smooth muscle cells and neurons through an indirect mechanism, probably involving the interaction of plasmon resonance with calcium-permeable ion channels, which leads to a change in intracellular calcium level.
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Affiliation(s)
- Anatoly Soloviev
- Department of Pharmacology of Cell Signaling Systems and Experimental Therapeutics, Institute of Pharmacology and Toxicology, National Academy of Medical Science of Ukraine, Kyiv, Ukraine
| | - Irina Ivanova
- Department of Pharmacology of Cell Signaling Systems and Experimental Therapeutics, Institute of Pharmacology and Toxicology, National Academy of Medical Science of Ukraine, Kyiv, Ukraine
| | - Vadym Sydorenko
- Department of Pharmacology of Cell Signaling Systems and Experimental Therapeutics, Institute of Pharmacology and Toxicology, National Academy of Medical Science of Ukraine, Kyiv, Ukraine
| | - Khrystyna Sukhanova
- McKelvey School of Engineering, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Mariia Melnyk
- Department of Biophysics and Medical Informatics, Educational and Scientific Centre "Institute of Biology and Medicine", Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
- Department of Cellular Membranology, A.A. Bogomoletz Institute of Physiology, Kyiv, Ukraine
| | - Dariia Dryn
- Department of Cellular Membranology, A.A. Bogomoletz Institute of Physiology, Kyiv, Ukraine
| | - Alexander Zholos
- Department of Biophysics and Medical Informatics, Educational and Scientific Centre "Institute of Biology and Medicine", Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
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Wang M, Zhang Z, Sun N, Yang B, Mo J, Wang D, Su M, Hu J, Wang M, Wang L. Gold Nanoparticles Reduce Food Sensation in Caenorhabditis elegans via the Voltage-Gated Channel EGL-19. Int J Nanomedicine 2023; 18:1659-1676. [PMID: 37020688 PMCID: PMC10069523 DOI: 10.2147/ijn.s394666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 03/07/2023] [Indexed: 03/31/2023] Open
Abstract
Introduction The increasing use of gold nanoparticles (Au NPs) in the medical field has raised concerns about the potential adverse effect of Au NPs exposure. However, it is difficult to assess the health risks of Au NPs exposure at the individual organ level using current measurement techniques. Methods The physical and chemical properties of Au NPs were characterized by transmission electron microscope (TEM), Fourier transform infrared (FTIR), and zeta sizer. The RNA-seq data of Au NPs-exposed worms were analyzed. The food intake was measured by liquid culture and Pharyngeal pumping rate. The function of the smell and taste neurons was evaluated by the chemotaxis and avoidance assay. The activation of ASE neurons was analyzed by calcium imaging. The gene expression of ins-22 and egl-19 was obtained from the C. elegans single cell RNA-seq databases. Results Our data analysis indicated that 62.8% of the significantly altered genes were functional in the nervous system. Notably, developmental stage analysis demonstrated that exposure to Au NPs interfered with animal development by regulating foraging behavior. Also, our chemotaxis results showed that exposure to Au NPs reduced the sensation of C. elegans to NaCl, which was consistent with the decrease in calcium transit of ASEL. Further studies confirmed that the reduced calcium transit was dependent on voltage-gated calcium channel EGL-19. The neuropeptide INS-22 was partially involved in Au NPs-induced NaCl sensation defect. Therefore, we proposed that Au NPs reduced the calcium transit in the ASEL neuron through egl-19-dependent calcium channels. It was partially regulated by the DAF-16 targeting neuropeptide INS-22. Discussion Our results demonstrate that Au NPs affect food sensation by reducing the calcium transit in ASEL neurons, which further leads to reduced pharynx pumping and feeding defects. The toxicology studies of Au NPs from worms have great potential to guide the usage of Au NPs in the medical field such as targeted drug delivery.
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Affiliation(s)
- Meimei Wang
- Department of Pathophysiology, School of Basic Medical Science, Anhui Medical University, Hefei, Anhui, 230032, People’s Republic of China
| | - Zhenzhen Zhang
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, People’s Republic of China
| | - Ning Sun
- Institute of Clinical Laboratory Science, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu, 210002, People’s Republic of China
| | - Baolin Yang
- Institute of Technical Biology & Agriculture Engineering, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230032, People’s Republic of China
| | - Jihao Mo
- Department of Medical Laboratory, Luoyang Orthopedic Hospital of Henan Province, Orthopedic Institute of Henan Province, Luoyang, Henan, 459001, People’s Republic of China
| | - Daping Wang
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, People’s Republic of China
| | - Mingqin Su
- Department of Pathophysiology, School of Basic Medical Science, Anhui Medical University, Hefei, Anhui, 230032, People’s Republic of China
| | - Jian Hu
- Department of Pathophysiology, School of Basic Medical Science, Anhui Medical University, Hefei, Anhui, 230032, People’s Republic of China
| | - Miaomiao Wang
- School of Medical Science, Huang He Science and Technology University, Zhengzhou, Henan, 459001, People’s Republic of China
| | - Lei Wang
- School of Biological Sciences, Nanyang Technological University, Singapore, 639798, Singapore
- Department of Physiology and Biophysics, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
- Correspondence: Lei Wang, Department of Physiology and Biophysics, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA, Tel +1 786-620-1400, Email
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Injectable 2D flexible hydrogel sheets for optoelectrical/biochemical dual stimulation of neurons. BIOMATERIALS ADVANCES 2023; 146:213284. [PMID: 36682202 DOI: 10.1016/j.bioadv.2023.213284] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 12/15/2022] [Accepted: 01/04/2023] [Indexed: 01/09/2023]
Abstract
Major challenges in developing implanted neural stimulation devices are the invasiveness, complexity, and cost of the implantation procedure. Here, we report an injectable, nanofibrous 2D flexible hydrogel sheet-based neural stimulation device that can be non-invasively implanted via syringe injection for optoelectrical and biochemical dual stimulation of neuron. Specifically, methacrylated gelatin (GelMA)/alginate hydrogel nanofibers were mechanically reinforced with a poly(lactide-co-ε-caprolactone) (PLCL) core by coaxial electrospinning. The lubricant hydrogel shell enabled not only injectability, but also facile incorporation of functional nanomaterials and bioactives. The nanofibers loaded with photocatatlytic g-C3N4/GO nanoparticles were capable of stimulating neural cells via blue light, with a significant 36.3 % enhancement in neurite extension. Meanwhile, the nerve growth factor (NGF) loaded nanofibers supported a sustained release of NGF with well-maintained function to biochemically stimulate neural differentiation. We have demonstrated the capability of an injectable, hydrogel nanofibrous, neural stimulation system to support neural stimulation both optoelectrically and biochemically, which represents crucial early steps in a larger effort to create a minimally invasive system for neural stimulation.
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Andolfi A, Arnaldi P, Lisa DD, Pepe S, Frega M, Fassio A, Lagazzo A, Martinoia S, Pastorino L. A micropatterned thermoplasmonic substrate for neuromodulation of in vitro neuronal networks. Acta Biomater 2023; 158:281-291. [PMID: 36563774 DOI: 10.1016/j.actbio.2022.12.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 12/05/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
Understanding how the spatial organization of a neural network affects its activity represents a leading issue in neuroscience. Thanks to their accessibility and easy handling, in vitro studies remain an essential tool to investigate the relationship between the structure and function of a neuronal network. Among all the patterning techniques, ink-jet printing acquired great interest thanks to its direct-write approach, which allows the patterned substrate realization without mold, leading to a considerable saving of both cost and time. However, the inks commonly used give the possibility to control only the structure of a neuronal network, leaving aside the functional aspect. In this work, we synthesize a photosensitive ink combining the rheological and bioadhesive properties of chitosan with the plasmonic properties of gold nanorods, obtaining an ink able to control both the spatial organization of a two-dimensional neuronal network and its activity through photothermal effect. After the ink characterization, we demonstrate that it is possible to print, with high precision, different geometries on a microelectrode array. In this way, it is possible obtaining a patterned device to control the structure of a neuronal network, to record its activity and to modulate it via photothermal effect. Finally, to our knowledge, we report the first evidence of photothermal inhibition of human neurons activity. STATEMENT OF SIGNIFICANCE: Patterned cell cultures remain the most efficient and simple tool for linking structural and functional studies, especially in the neuronal field. Ink-jet printing is the technique with which it is possible to realize patterned structures in the fastest, simple, versatile and low-cost way. However, the inks currently used permit the control only of the neuronal network structure but do not allow the control-modulation of the network activity. In this study, we realize and characterize a photosensitive bioink with which it is possible to drive both the structure and the activity of a neuronal network. Moreover, we report the first evidence of activity inhibition by the photothermal effect on human neurons as far as we know.
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Affiliation(s)
- Andrea Andolfi
- Department of Informatics, Bioengineering, Robotics and Systems Engineering (DIBRIS), University of Genoa, Genoa, Italy.
| | - Pietro Arnaldi
- Department of Informatics, Bioengineering, Robotics and Systems Engineering (DIBRIS), University of Genoa, Genoa, Italy.
| | - Donatella Di Lisa
- Department of Informatics, Bioengineering, Robotics and Systems Engineering (DIBRIS), University of Genoa, Genoa, Italy.
| | - Sara Pepe
- Department of Experimental Medicine, University of Genoa, Genoa, Italy.
| | - Monica Frega
- Department of Clinical Neurophysiology, University of Twente, Enschede, the Netherlands.
| | - Anna Fassio
- Department of Experimental Medicine, University of Genoa, Genoa, Italy.
| | - Alberto Lagazzo
- Department of Civil, Chemical and Environmental Engineering (DICCA), University of Genoa, Genoa, Italy.
| | - Sergio Martinoia
- Department of Informatics, Bioengineering, Robotics and Systems Engineering (DIBRIS), University of Genoa, Genoa, Italy.
| | - Laura Pastorino
- Department of Informatics, Bioengineering, Robotics and Systems Engineering (DIBRIS), University of Genoa, Genoa, Italy.
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Wang Y, Garg R, Cohen-Karni D, Cohen-Karni T. Neural modulation with photothermally active nanomaterials. NATURE REVIEWS BIOENGINEERING 2023; 1:193-207. [PMID: 39221032 PMCID: PMC11364367 DOI: 10.1038/s44222-023-00022-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/02/2023] [Indexed: 09/04/2024]
Abstract
Modulating neural electrophysiology with high precision is essential for understanding neural communication and for the diagnosis and treatment of neural disorders. Photothermal modulation offers a remote and non-genetic method for neural modulation with high spatiotemporal resolution and specificity. This technique induces highly localized and transient temperature changes at the cell membrane interfaced with photothermally active nanomaterials. This rapid temperature change affects the electrical properties of the cell membrane or temperature-sensitive ion channels. In this Review, we discuss the fundamental material properties and illumination conditions that are necessary for nanomaterial-assisted photothermal neural excitation and inhibition. We examine how this versatile technique allows direct investigation of neural electrophysiology and signalling pathways in two-dimensional and three-dimensional cell cultures and tissues, and highlight the scientific and technological challenges in terms of cellular specificity, light delivery and biointerface stability on the road to clinical translation.
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Affiliation(s)
- Yingqiao Wang
- Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
- These authors contributed equally: Yingqiao Wang, Raghav Garg
| | - Raghav Garg
- Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
- These authors contributed equally: Yingqiao Wang, Raghav Garg
| | - Devora Cohen-Karni
- Preclinical education biochemistry, Lake Erie College of Osteopathic Medicine at Seton Hill, Greensburg, PA, USA
| | - Tzahi Cohen-Karni
- Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
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42
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Bassetto CAZ, Pinto BI, Latorre R, Bezanilla F. Ion channel thermodynamics studied with temperature jumps measured at the cell membrane. Biophys J 2023; 122:661-671. [PMID: 36654507 PMCID: PMC9989882 DOI: 10.1016/j.bpj.2023.01.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 11/29/2022] [Accepted: 01/12/2023] [Indexed: 01/19/2023] Open
Abstract
Perturbing the temperature of a system modifies its energy landscape, thus providing a ubiquitous tool to understand biological processes. Here, we developed a framework to generate sudden temperature jumps (Tjumps) and sustained temperature steps (Tsteps) to study the temperature dependence of membrane proteins under voltage clamp while measuring the membrane temperature. Utilizing the melanin under the Xenopus laevis oocytes membrane as a photothermal transducer, we achieved short Tjumps up to 9°C in less than 1.5 ms and constant Tsteps for durations up to 150 ms. We followed the temperature at the membrane with sub-ms time resolution by measuring the time course of membrane capacitance, which is linearly related to temperature. We applied Tjumps in Kir1.1 isoform b, which reveals a highly temperature-sensitive blockage relief, and characterized the effects of Tsteps on the temperature-sensitive channels TRPM8 and TRPV1. These newly developed approaches provide a general tool to study membrane protein thermodynamics.
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Affiliation(s)
- Carlos A Z Bassetto
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, Illinois
| | - Bernardo I Pinto
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, Illinois
| | - Ramon Latorre
- Centro Interdisciplinario de Neurociencias de Valparaiso, Universidad de Valparaiso, Valparaiso, Chile.
| | - Francisco Bezanilla
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, Illinois; Centro Interdisciplinario de Neurociencias de Valparaiso, Universidad de Valparaiso, Valparaiso, Chile.
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43
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Begeng JM, Tong W, Rosal BD, Ibbotson M, Kameneva T, Stoddart PR. Activity of Retinal Neurons Can Be Modulated by Tunable Near-Infrared Nanoparticle Sensors. ACS NANO 2023; 17:2079-2088. [PMID: 36724043 DOI: 10.1021/acsnano.2c07663] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The vision of patients rendered blind by photoreceptor degeneration can be partially restored by exogenous stimulation of surviving retinal ganglion cells (RGCs). Whereas conventional electrical stimulation techniques have failed to produce naturalistic visual percepts, nanoparticle-based optical sensors have recently received increasing attention as a means to artificially stimulate the RGCs. In particular, nanoparticle-enhanced infrared neural modulation (NINM) is a plasmonically mediated photothermal neuromodulation technique that has a demonstrated capacity for both stimulation and inhibition, which is essential for the differential modulation of ON-type and OFF-type RGCs. Gold nanorods provide tunable absorption through the near-infrared wavelength window, which reduces interference with any residual vision. Therefore, NINM may be uniquely well-suited to retinal prosthesis applications but, to our knowledge, has not previously been demonstrated in RGCs. In the present study, NINM laser pulses of 100 μs, 500 μs and 200 ms were applied to RGCs in explanted rat retinae, with single-cell responses recorded via patch-clamping. The shorter laser pulses evoked robust RGC stimulation by capacitive current generation, while the long laser pulses are capable of inhibiting spontaneous action potentials by thermal block. Importantly, an implicit bias toward OFF-type inhibition is observed, which may have important implications for the feasibility of future high-acuity retinal prosthesis design based on nanoparticle sensors.
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Affiliation(s)
- James M Begeng
- School of Science, Computing and Engineering Technologies, Swinburne University of Technology, John Street, Hawthorn, VictoriaAustralia3122
- The Australian College of Optometry, The National Vision Research Institute, 386 Cardigan Street, Carlton, VictoriaAustralia3053
| | - Wei Tong
- The Australian College of Optometry, The National Vision Research Institute, 386 Cardigan Street, Carlton, VictoriaAustralia3053
- Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, Melbourne, Victoria, Australia3010
- School of Physics, The University of Melbourne, Parkville, Melbourne, Victoria, Australia3010
| | - Blanca Del Rosal
- School of Science, RMIT University, Melbourne, Victoria, Australia3000
| | - Michael Ibbotson
- The Australian College of Optometry, The National Vision Research Institute, 386 Cardigan Street, Carlton, VictoriaAustralia3053
- Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, Melbourne, Victoria, Australia3010
| | - Tatiana Kameneva
- School of Science, Computing and Engineering Technologies, Swinburne University of Technology, John Street, Hawthorn, VictoriaAustralia3122
| | - Paul R Stoddart
- School of Science, Computing and Engineering Technologies, Swinburne University of Technology, John Street, Hawthorn, VictoriaAustralia3122
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44
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Nanocomposite Hydrogels as Functional Extracellular Matrices. Gels 2023; 9:gels9020153. [PMID: 36826323 PMCID: PMC9957407 DOI: 10.3390/gels9020153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/31/2023] [Accepted: 02/08/2023] [Indexed: 02/16/2023] Open
Abstract
Over recent years, nano-engineered materials have become an important component of artificial extracellular matrices. On one hand, these materials enable static enhancement of the bulk properties of cell scaffolds, for instance, they can alter mechanical properties or electrical conductivity, in order to better mimic the in vivo cell environment. Yet, many nanomaterials also exhibit dynamic, remotely tunable optical, electrical, magnetic, or acoustic properties, and therefore, can be used to non-invasively deliver localized, dynamic stimuli to cells cultured in artificial ECMs in three dimensions. Vice versa, the same, functional nanomaterials, can also report changing environmental conditions-whether or not, as a result of a dynamically applied stimulus-and as such provide means for wireless, long-term monitoring of the cell status inside the culture. In this review article, we present an overview of the technological advances regarding the incorporation of functional nanomaterials in artificial extracellular matrices, highlighting both passive and dynamically tunable nano-engineered components.
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45
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Zhang Y, Yang D, Nie J, Dai J, Wu H, Zheng JC, Zhang F, Fang Y. Transcranial Nongenetic Neuromodulation via Bioinspired Vesicle-Enabled Precise NIR-II Optical Stimulation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2208601. [PMID: 36305036 DOI: 10.1002/adma.202208601] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/24/2022] [Indexed: 06/16/2023]
Abstract
Regulating the activity of specific neurons is essentially important in neurocircuit dissection and neuropathy therapy. As a recently developed strategy, nanomaterial-enabled nongenetic neuromodulations that realize remote physical stimuli have made vast progress and shown great clinical potential. However, minimal invasiveness and high spatiotemporal resolution are still challenging for nongenetic neuromodulation. Herein, a second near-infrared (NIR-II)-light-induced transcranial nongenetic neurostimulation via bioinspired nanovesicles is reported. The rationally designed vesicles are obtained from vesicle-membrane-confined enzymatic reactions. This study demonstrates that the vesicle-enabled NIR-II photothermal stimuli can elicit neuronal signaling dynamics with precise spatiotemporal control and thus evoke defined neural circuits in nontransgenic mice. Moreover, the vesicle-mediated NIR-II optical stimulation can regulate mouse motor behaviors with minimal invasiveness by eliminating light-emitting implants. Furthermore, the biological modulation is integrated with photoacoustic brain imaging, realizing navigational, and efficient neuromodulation. Such transcranial and precise NIR-II optical neuromodulation mediated by bioinspired vesicles shows the potential for the optical-theranostics of neurological diseases in nontransgenic organisms.
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Affiliation(s)
- Ya Zhang
- Research Center for Translational Medicine, Shanghai East Hospital Affiliated to Tongji University, Shanghai, 200120, China
- The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Deqi Yang
- Research Center for Translational Medicine, Shanghai East Hospital Affiliated to Tongji University, Shanghai, 200120, China
- The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Jianfang Nie
- Research Center for Translational Medicine, Shanghai East Hospital Affiliated to Tongji University, Shanghai, 200120, China
- The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Jing Dai
- Research Center for Translational Medicine, Shanghai East Hospital Affiliated to Tongji University, Shanghai, 200120, China
- The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Haofan Wu
- Research Center for Translational Medicine, Shanghai East Hospital Affiliated to Tongji University, Shanghai, 200120, China
- The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Jialin Charles Zheng
- The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200092, China
- Center for Translational Neurodegeneration and Regenerative Therapy, Tongji Hospital affiliated to Tongji University, Shanghai, 200065, China
| | - Fan Zhang
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers and iChem, Shanghai Key Laboratory of Molecular Catalysis and Innovative Material, Fudan University, Shanghai, 200433, China
| | - Yin Fang
- Research Center for Translational Medicine, Shanghai East Hospital Affiliated to Tongji University, Shanghai, 200120, China
- The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200092, China
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46
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Central Nervous System Nanotechnology. Nanomedicine (Lond) 2023. [DOI: 10.1007/978-981-16-8984-0_29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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Sessler CD, Zhou Y, Wang W, Hartley ND, Fu Z, Graykowski D, Sheng M, Wang X, Liu J. Optogenetic polymerization and assembly of electrically functional polymers for modulation of single-neuron excitability. SCIENCE ADVANCES 2022; 8:eade1136. [PMID: 36475786 PMCID: PMC9728971 DOI: 10.1126/sciadv.ade1136] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 10/28/2022] [Indexed: 06/17/2023]
Abstract
Ionic conductivity and membrane capacitance are two foundational parameters that govern neuron excitability. Conventional optogenetics has emerged as a powerful tool to temporarily manipulate membrane ionic conductivity in intact biological systems. However, no analogous method exists for precisely manipulating cell membrane capacitance to enable long-lasting modulation of neuronal excitability. Genetically targetable chemical assembly of conductive and insulating polymers can modulate cell membrane capacitance, but further development of this technique has been hindered by poor spatiotemporal control of the polymer deposition and cytotoxicity from the widely diffused peroxide. We address these issues by harnessing genetically targetable photosensitizer proteins to assemble electrically functional polymers in neurons with precise spatiotemporal control. Using whole-cell patch-clamp recordings, we demonstrate that this optogenetic polymerization can achieve stepwise modulation of both neuron membrane capacitance and intrinsic excitability. Furthermore, cytotoxicity can be limited by controlling light exposure, demonstrating a promising new method for precisely modulating cell excitability.
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Affiliation(s)
- Chanan D. Sessler
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Yiming Zhou
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Wenbo Wang
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Nolan D. Hartley
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Zhanyan Fu
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - David Graykowski
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Morgan Sheng
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Xiao Wang
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Jia Liu
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
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Wang H, Chen YS, Zhao Y. Understanding the near-field photoacoustic spatiotemporal profile from nanostructures. PHOTOACOUSTICS 2022; 28:100425. [PMID: 36425224 PMCID: PMC9679035 DOI: 10.1016/j.pacs.2022.100425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 10/13/2022] [Accepted: 11/11/2022] [Indexed: 05/25/2023]
Abstract
Understanding the mechanism of photoacoustic generation at the nanoscale is key to developing more efficient photoacoustic devices and agents. Unlike the far-field photoacoustic effect that has been well employed in imaging, the near-field profile leads to a complex wave-tissue interaction but is understudied. Here we show that the spatiotemporal profile of the near-field photoacoustic waves can be shaped by laser pulses, anisotropy, and the spatial arrangement of nanostructure(s). Using a gold nanorod as an example, we discovered that the near-field photoacoustic amplitude in the short axis is ∼75 % stronger than the long axis, and the anisotropic spatial distribution converges to an isotropic spherical wave at ∼50 nm away from the nanorod's surface. We further extend the model to asymmetric gold nanostructures by arranging isotropic nanoparticles anisotropically with broken symmetry to achieve a precisely controlled near-field photoacoustic "focus" largely within an acoustic wavelength.
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Affiliation(s)
- Hanwei Wang
- Department of Electrical and Computer Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
- Micro and Nanotechnology Laboratory, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - Yun-Sheng Chen
- Department of Electrical and Computer Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
- Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL, USA
- Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
- Carle Illinois College of Medicine, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - Yang Zhao
- Department of Electrical and Computer Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
- Micro and Nanotechnology Laboratory, University of Illinois Urbana-Champaign, Urbana, IL, USA
- Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, IL, USA
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Signorelli L, Hescham SA, Pralle A, Gregurec D. Magnetic nanomaterials for wireless thermal and mechanical neuromodulation. iScience 2022; 25:105401. [PMID: 36388996 PMCID: PMC9641224 DOI: 10.1016/j.isci.2022.105401] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Magnetic fields are very attractive for non-invasive neuromodulation because they easily penetrate trough the skull and tissue. Cell specific neuromodulation requires the magnetic field energy to be converted by an actuator to a biologically relevant signal. Miniaturized actuators available today range from small, isotropic magnetic nanoparticles to larger, submicron anisotropic magnetic nanomaterials. Depending on the parameters of external magnetic fields and the properties of the nanoactuators, they create either a thermal or a mechanical stimulus. Ferromagnetic nanomaterials generate heat in response to high frequency alternating magnetic fields associated with dissipative losses. Anisotropic nanomaterials with large magnetic moments are capable of exerting forces at stationary or slowly varying magnetic fields. These tools allow exploiting thermosensitive or mechanosensitive neurons in circuit or cell specific tetherless neuromodulation schemes. This review will address assortment of available magnetic nanomaterial-based neuromodulation techniques that rely on application of external magnetic fields.
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Affiliation(s)
- Lorenzo Signorelli
- Department of Chemistry and Pharmacy, Chair of Aroma and Smell Research, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Sarah- Anna Hescham
- Department of Neurosurgery, Mental Health and Neuroscience, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Arnd Pralle
- Department of Physics, University at Buffalo, Buffalo, NY, USA
| | - Danijela Gregurec
- Department of Chemistry and Pharmacy, Chair of Aroma and Smell Research, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
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50
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Janicka M, Ranoszek-Soliwoda K, Chodaczek G, Antos-Bielska M, Brytan M, Tomaszewska E, Celichowski G, Grobelny J, Cymerys J, Krzyżowska M, Chodkowski M. Functionalized Noble Metal Nanoparticles for the Treatment of Herpesvirus Infection. Microorganisms 2022; 10:microorganisms10112161. [PMID: 36363754 PMCID: PMC9695377 DOI: 10.3390/microorganisms10112161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/14/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022] Open
Abstract
Neuroinfections caused by herpesviruses, mainly by HHV-1, represent a significant problem for modern medicine due to the small number of therapeutic substances available in the pharmaceutical sector. Furthermore, HHV-1 infection has been linked to neurodegenerative processes such as Alzheimer’s disease, which justifies the search for new effective therapies. The development of nanotechnology opens up new possibilities for the treatment of neuroinflammation. Gold and silver nanoparticles are gaining popularity, and the number of clinical trials involving metallic nanoparticles is constantly increasing. This paper reviews the research on gold and silver nanoparticles and their potential use in the treatment of herpesvirus neuroinfection.
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Affiliation(s)
- Martyna Janicka
- Military Institute of Hygiene and Epidemiology, Kozielska 4, 01-163 Warsaw, Poland
- Division of Microbiology, Department of Preclinical Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-786 Warsaw, Poland
| | - Katarzyna Ranoszek-Soliwoda
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163 St., 90-236 Lodz, Poland
| | - Grzegorz Chodaczek
- Bioimaging Laboratory, Łukasiewicz Research Network—PORT Polish Center for Technology Development, 54-066 Wroclaw, Poland
| | | | - Marek Brytan
- Military Institute of Hygiene and Epidemiology, Kozielska 4, 01-163 Warsaw, Poland
| | - Emilia Tomaszewska
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163 St., 90-236 Lodz, Poland
| | - Grzegorz Celichowski
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163 St., 90-236 Lodz, Poland
| | - Jarosław Grobelny
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163 St., 90-236 Lodz, Poland
| | - Joanna Cymerys
- Division of Microbiology, Department of Preclinical Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-786 Warsaw, Poland
| | - Małgorzata Krzyżowska
- Military Institute of Hygiene and Epidemiology, Kozielska 4, 01-163 Warsaw, Poland
- Correspondence: (M.K.); (M.C.)
| | - Marcin Chodkowski
- Military Institute of Hygiene and Epidemiology, Kozielska 4, 01-163 Warsaw, Poland
- Correspondence: (M.K.); (M.C.)
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