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Debbi L, Machour M, Dahis D, Shoyhet H, Shuhmaher M, Potter R, Tabory Y, Goldfracht I, Dennis I, Blechman T, Fuchs T, Azhari H, Levenberg S. Ultrasound Mediated Polymerization for Cell Delivery, Drug Delivery, and 3D Printing. SMALL METHODS 2024:e2301197. [PMID: 38376006 DOI: 10.1002/smtd.202301197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Indexed: 02/21/2024]
Abstract
Safe and accurate in situ delivery of biocompatible materials is a fundamental requirement for many biomedical applications. These include sustained and local drug release, implantation of acellular biocompatible scaffolds, and transplantation of cells and engineered tissues for functional restoration of damaged tissues and organs. The common practice today includes highly invasive operations with major risks of surgical complications including adjacent tissue damage, infections, and long healing periods. In this work, a novel non-invasive delivery method is presented for scaffold, cells, and drug delivery deep into the body to target inner tissues. This technology is based on acousto-sensitive materials which are polymerized by ultrasound induction through an external transducer in a rapid and local fashion without additional photoinitiators or precursors. The applicability of this technology is demonstrated for viable and functional cell delivery, for drug delivery with sustained release profiles, and for 3D printing. Moreover, the mechanical properties of the delivered scaffold can be tuned to the desired target tissue as well as controlling the drug release profile. This promising technology may shift the paradigm for local and non-invasive material delivery approach in many clinical applications as well as a new printing method - "acousto-printing" for 3D printing and in situ bioprinting.
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Affiliation(s)
- Lior Debbi
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Majd Machour
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Daniel Dahis
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Hagit Shoyhet
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Margarita Shuhmaher
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Ruth Potter
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Yael Tabory
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Idit Goldfracht
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Itiel Dennis
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Tom Blechman
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Theodor Fuchs
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Haim Azhari
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Shulamit Levenberg
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
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Strohm EM, Callaghan NI, Ding Y, Latifi N, Rafatian N, Funakoshi S, Fernandes I, Reitz CJ, Di Paola M, Gramolini AO, Radisic M, Keller G, Kolios MC, Simmons CA. Noninvasive Quantification of Contractile Dynamics in Cardiac Cells, Spheroids, and Organs-on-a-Chip Using High-Frequency Ultrasound. ACS NANO 2024; 18:314-327. [PMID: 38147684 DOI: 10.1021/acsnano.3c06325] [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: 12/28/2023]
Abstract
Cell-based models that mimic in vivo heart physiology are poised to make significant advances in cardiac disease modeling and drug discovery. In these systems, cardiomyocyte (CM) contractility is an important functional metric, but current measurement methods are inaccurate and low-throughput or require complex setups. To address this need, we developed a standalone noninvasive, label-free ultrasound technique operating at 40-200 MHz to measure the contractile kinetics of cardiac models, ranging from single adult CMs to 3D microtissue constructs in standard cell culture formats. The high temporal resolution of 1000 fps resolved the beat profile of single mouse CMs paced at up to 9 Hz, revealing limitations of lower speed optical based measurements to resolve beat kinetics or characterize aberrant beats. Coupling of ultrasound with traction force microscopy enabled the measurement of the CM longitudinal modulus and facile estimation of adult mouse CM contractile forces of 2.34 ± 1.40 μN, comparable to more complex measurement techniques. Similarly, the beat rate, rhythm, and drug responses of CM spheroid and microtissue models were measured, including in configurations without optical access. In conclusion, ultrasound can be used for the rapid characterization of CM contractile function in a wide range of commonly studied configurations ranging from single cells to 3D tissue constructs using standard well plates and custom microdevices, with applications in cardiac drug discovery and cardiotoxicity evaluation.
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Affiliation(s)
- Eric M Strohm
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, M5S 3G8, Canada
- Translational Biology and Engineering Program, Ted Rogers Center for Heart Research, Toronto, M5G 1M1, Canada
| | - Neal I Callaghan
- Translational Biology and Engineering Program, Ted Rogers Center for Heart Research, Toronto, M5G 1M1, Canada
- Institute of Biomedical Engineering, University of Toronto, Toronto, M5S 3G9, Canada
| | - Yu Ding
- Translational Biology and Engineering Program, Ted Rogers Center for Heart Research, Toronto, M5G 1M1, Canada
- Institute of Biomedical Engineering, University of Toronto, Toronto, M5S 3G9, Canada
| | - Neda Latifi
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, M5S 3G8, Canada
- Translational Biology and Engineering Program, Ted Rogers Center for Heart Research, Toronto, M5G 1M1, Canada
| | - Naimeh Rafatian
- Toronto General Hospital Research Institute, Toronto, M5G 2C4, Canada
| | - Shunsuke Funakoshi
- McEwen Stem Cell Institute, University Health Network, Toronto, M5G 1L7, Canada
| | - Ian Fernandes
- McEwen Stem Cell Institute, University Health Network, Toronto, M5G 1L7, Canada
| | - Cristine J Reitz
- Translational Biology and Engineering Program, Ted Rogers Center for Heart Research, Toronto, M5G 1M1, Canada
- Department of Physiology, University of Toronto, Toronto, M5S 1A8, Canada
| | - Michelle Di Paola
- Translational Biology and Engineering Program, Ted Rogers Center for Heart Research, Toronto, M5G 1M1, Canada
- Department of Physiology, University of Toronto, Toronto, M5S 1A8, Canada
| | - Anthony O Gramolini
- Translational Biology and Engineering Program, Ted Rogers Center for Heart Research, Toronto, M5G 1M1, Canada
- Department of Physiology, University of Toronto, Toronto, M5S 1A8, Canada
| | - Milica Radisic
- Institute of Biomedical Engineering, University of Toronto, Toronto, M5S 3G9, Canada
- Toronto General Hospital Research Institute, Toronto, M5G 2C4, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, M5S 3E5, Canada
| | - Gordon Keller
- McEwen Stem Cell Institute, University Health Network, Toronto, M5G 1L7, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, M5G 1L7, Canada
| | - Michael C Kolios
- Department of Physics, Toronto Metropolitan University, Toronto, M5B 2K3, Canada
| | - Craig A Simmons
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, M5S 3G8, Canada
- Translational Biology and Engineering Program, Ted Rogers Center for Heart Research, Toronto, M5G 1M1, Canada
- Institute of Biomedical Engineering, University of Toronto, Toronto, M5S 3G9, Canada
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