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Nawijn CL, Segers T, Lajoinie G, Berg S, Snipstad S, Davies CDL, Versluis M. High-Speed Optical Characterization of Protein-and-Nanoparticle-Stabilized Microbubbles for Ultrasound-Triggered Drug Release. ULTRASOUND IN MEDICINE & BIOLOGY 2024; 50:1099-1107. [PMID: 38851940 DOI: 10.1016/j.ultrasmedbio.2024.03.011] [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: 01/03/2024] [Revised: 03/11/2024] [Accepted: 03/21/2024] [Indexed: 06/10/2024]
Abstract
OBJECTIVE Ultrasound-triggered bubble-mediated local drug delivery has shown potential to increase therapeutic efficacy and reduce systemic side effects, by loading drugs into the microbubble shell and triggering delivery of the payload on demand using ultrasound. Understanding the behavior of the microbubbles in response to ultrasound is crucial for efficient and controlled release. METHODS In this work, the response of microbubbles with a coating consisting of poly(2-ethyl-butyl cyanoacrylate) (PEBCA) nanoparticles and denatured casein was characterized. High-speed recordings were taken of single microbubbles, in both bright field and fluorescence. RESULTS The nanoparticle-loaded microbubbles show resonance behavior, but with a large variation in response, revealing a substantial interbubble variation in mechanical shell properties. The probability of shell rupture and the probability of nanoparticle release were found to strongly depend on microbubble size, and the most effective size was inversely proportional to the driving frequency. The probabilities of both rupture and release increased with increasing driving pressure amplitude. Rupture of the microbubble shell occurred after fewer cycles of ultrasound as the driving pressure amplitude or driving frequency was increased. CONCLUSION The results highlight the importance of careful selection of the driving frequency, driving pressure amplitude and duration of ultrasound to achieve the most efficient ultrasound-triggered shell rupture and nanoparticle release of protein-and-nanoparticle-stabilized microbubbles.
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Affiliation(s)
- Charlotte L Nawijn
- Physics of Fluids Group, Technical Medical (TechMed) Center, University of Twente, Enschede, The Netherlands.
| | - Tim Segers
- BIOS/Lab on a Chip Group, Max Planck Center Twente for Complex Fluid Dynamics, MESA+ Institute for Nanotechnology, University of Twente, Enschede, The Netherlands
| | - Guillaume Lajoinie
- Physics of Fluids Group, Technical Medical (TechMed) Center, University of Twente, Enschede, The Netherlands
| | - Sigrid Berg
- Department of Health Research, SINTEF Digital, Trondheim, Norway
| | - Sofie Snipstad
- Department of Biotechnology and Nanomedicine, SINTEF Industry, Trondheim, Norway; Cancer Clinic, St. Olav's Hospital, Trondheim, Norway; Department of Physics, Norwegian University of Science and Technology, Trondheim, Norway
| | | | - Michel Versluis
- Physics of Fluids Group, Technical Medical (TechMed) Center, University of Twente, Enschede, The Netherlands
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2
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Pattinson O, Keller SB, Evans ND, Pierron F, Carugo D. An Acoustic Device for Ultra High-Speed Quantification of Cell Strain During Cell-Microbubble Interaction. ACS Biomater Sci Eng 2023; 9:5912-5923. [PMID: 37747762 PMCID: PMC10565720 DOI: 10.1021/acsbiomaterials.3c00757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 09/11/2023] [Indexed: 09/26/2023]
Abstract
Microbubbles utilize high-frequency oscillations under ultrasound stimulation to induce a range of therapeutic effects in cells, often through mechanical stimulation and permeabilization of cells. One of the largest challenges remaining in the field is the characterization of interactions between cells and microbubbles at therapeutically relevant frequencies. Technical limitations, such as employing sufficient frame rates and obtaining sufficient image resolution, restrict the quantification of the cell's mechanical response to oscillating microbubbles. Here, a novel methodology was developed to address many of these limitations and improve the image resolution of cell-microbubble interactions at high frame rates. A compact acoustic device was designed to house cells and microbubbles as well as a therapeutically relevant acoustic field while being compatible with a Shimadzu HPV-X camera. Cell viability tests confirmed the successful culture and proliferation of cells, and the attachment of DSPC- and cationic DSEPC-microbubbles to osteosarcoma cells was quantified. Microbubble oscillation was observed within the device at a frame rate of 5 million FPS, confirming suitable acoustic field generation and ultra high-speed image capture. High spatial resolution in these images revealed observable deformation in cells following microbubble oscillation and supported the first use of digital image correlation for strain quantification in a single cell. The novel acoustic device provided a simple, effective method for improving the spatial resolution of cell-microbubble interaction images, presenting the opportunity to develop an understanding of the mechanisms driving the therapeutic effects of oscillating microbubbles upon ultrasound exposure.
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Affiliation(s)
- Oliver Pattinson
- Faculty
of Engineering and Physical Sciences, University
of Southampton, University Road, Southampton SO17 1BJ, United Kingdom
| | - Sara B. Keller
- Department
of Engineering Science, University of Oxford, Old Road, Headington, Oxford OX3 7LD, U.K.
| | - Nicholas D. Evans
- Faculty
of Engineering and Physical Sciences, University
of Southampton, University Road, Southampton SO17 1BJ, United Kingdom
| | - Fabrice Pierron
- Faculty
of Engineering and Physical Sciences, University
of Southampton, University Road, Southampton SO17 1BJ, United Kingdom
| | - Dario Carugo
- Nuffield
Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences
(NDORMS), University of Oxford, Old Road, Headington, Oxford OX3 7LD, United Kingdom
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3
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Antioxidant, Antibacterial, Anti-Inflammatory, and Antiproliferative Activity of Sorghum Lignin (Sorghum bicolor) Treated with Ultrasonic Pulses. Metabolites 2023; 13:metabo13030394. [PMID: 36984833 PMCID: PMC10053315 DOI: 10.3390/metabo13030394] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 03/10/2023] Open
Abstract
This investigation aimed to determine the effect of high-power ultrasonic pulses on the antioxidant, antibacterial, and antiproliferative activity of sorghum (Sorghum bicolor) lignin. A lignin yield of 7.35% was obtained using the organosolv method. Additionally, the best conditions of the ultrasonic pulses were optimized to obtain a more significant increase in antioxidant capacity, resulting in 10 min for all treatments, with amplitudes of 20% for DPPH and FRAP, 18% for ABTS, and 14% for total phenols. The effect of ultrasonic pulses was mainly observed with FRAP (1694.88 µmol TE/g), indicating that the main antioxidant mechanism of lignin is through electron transport. Sorghum lignin with and without ultrasonic pulses showed high percentages of hemolysis inhibition (>80%) at concentrations of 0.003 to 0.33 mg/mL. The AB blood group and, in general, all Rh- groups are the most susceptible to hemolysis. Lignin showed high anti-inflammatory potential due to heat and hypotonicity (>82%). A higher antimicrobial activity of lignin on Escherichia coli bacteria was observed. The lignins evaluated without sonication and sonication presented higher activity in the cell line PC-3. No effect was observed on the lignin structure with the FT-IR technique between sonication and non-sonication; however, the organosolv method helped extract pure lignin according to HPLC.
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4
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Martinez P, Bottenus N, Borden M. Cavitation Characterization of Size-Isolated Microbubbles in a Vessel Phantom Using Focused Ultrasound. Pharmaceutics 2022; 14:pharmaceutics14091925. [PMID: 36145673 PMCID: PMC9501432 DOI: 10.3390/pharmaceutics14091925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 08/30/2022] [Accepted: 09/06/2022] [Indexed: 12/03/2022] Open
Abstract
Pharmaceutical delivery can be noninvasively targeted on-demand by microbubble (MB) assisted focused ultrasound (FUS). Passive cavitation detection (PCD) has become a useful method to obtain real-time feedback on MB activity due to a FUS pulse. Previous work has demonstrated the acoustic PCD response of MBs at a variety of acoustic parameters, but few have explored variations in microbubble parameters. The goal of this study was to determine the acoustic response of different MB size populations and concentrations. Four MB size distributions were prepared (2, 3, 5 µm diameter and polydisperse) and pulled through a 2% agar wall-less vessel phantom. FUS was applied by a 1.515 MHz geometrically focused transducer for 1 ms pulses at 1 Hz PRF and seven distinct mechanical indices (MI) ranging from 0.01 to 1.0 (0.0123 to 1.23 MPa PNP). We found that the onset of harmonic (HCD) and broadband cavitation dose (BCD) depends on the mechanical index, MB size and MB concentration. When matched for MI, the HCD and BCD rise, plateau, and decline as microbubble concentration is increased. Importantly, when microbubble size and concentration are combined into gas volume fraction, all four microbubble size distributions align to similar onset and peak; these results may help guide the planning and control of MB + FUS therapeutic procedures.
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Affiliation(s)
- Payton Martinez
- Biomedical Engineering Program, University of Colorado, Boulder, CO 80309, USA; (P.M.); (N.B.)
- IQ Biology Program, University of Colorado, Boulder, CO 80309, USA
| | - Nick Bottenus
- Biomedical Engineering Program, University of Colorado, Boulder, CO 80309, USA; (P.M.); (N.B.)
- Mechanical Engineering Department, University of Colorado, Boulder, CO 80309, USA
| | - Mark Borden
- Biomedical Engineering Program, University of Colorado, Boulder, CO 80309, USA; (P.M.); (N.B.)
- Mechanical Engineering Department, University of Colorado, Boulder, CO 80309, USA
- Correspondence:
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5
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Liu P, Tian Z, Yang K, Naquin TD, Hao N, Huang H, Chen J, Ma Q, Bachman H, Zhang P, Xu X, Hu J, Huang TJ. Acoustofluidic black holes for multifunctional in-droplet particle manipulation. SCIENCE ADVANCES 2022; 8:eabm2592. [PMID: 35363512 PMCID: PMC10938576 DOI: 10.1126/sciadv.abm2592] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 02/10/2022] [Indexed: 06/14/2023]
Abstract
Acoustic black holes offer superior capabilities for slowing down and trapping acoustic waves for various applications such as metastructures, energy harvesting, and vibration and noise control. However, no studies have considered the linear and nonlinear effects of acoustic black holes on micro/nanoparticles in fluids. This study presents acoustofluidic black holes (AFBHs) that leverage controlled interactions between AFBH-trapped acoustic wave energy and particles in droplets to enable versatile particle manipulation functionalities, such as translation, concentration, and patterning of particles. We investigated the AFBH-enabled wave energy trapping and wavelength shrinking effects, as well as the trapped wave energy-induced acoustic radiation forces on particles and acoustic streaming in droplets. This study not only fills the gap between the emerging fields of acoustofluidics and acoustic black holes but also leads to a class of AFBH-based in-droplet particle manipulation toolsets with great potential for many applications, such as biosensing, point-of-care testing, and drug screening.
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Affiliation(s)
- Pengzhan Liu
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
- State Key Lab of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Zhenhua Tian
- Department of Aerospace Engineering, Mississippi State University, Mississippi State, MS 39762, USA
| | - Kaichun Yang
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - Ty Downing Naquin
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - Nanjing Hao
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - Huiyu Huang
- State Key Lab of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Jinyan Chen
- State Key Lab of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Qiuxia Ma
- State Key Lab of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Hunter Bachman
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - Peiran Zhang
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - Xiahong Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products; Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Junhui Hu
- State Key Lab of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Tony Jun Huang
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
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6
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Centner CS, Moore JT, Baxter ME, Long ZT, Miller JM, Kovatsenko ES, Xie B, Menze MA, Berson RE, Bates PJ, Yaddanapudi K, Kopechek JA. Acoustofluidic-mediated molecular delivery to human T cells with a three-dimensional-printed flow chamber. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2021; 150:4534. [PMID: 34972278 DOI: 10.1121/10.0009054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 11/09/2021] [Indexed: 06/14/2023]
Abstract
Cell-based therapies have garnered significant interest to treat cancer and other diseases. Acoustofluidic technologies are in development to improve cell therapy manufacturing by facilitating rapid molecular delivery across the plasma membrane via ultrasound and microbubbles (MBs). In this study, a three-dimensional (3D) printed acoustofluidic device was used to deliver a fluorescent molecule, calcein, to human T cells. Intracellular delivery of calcein was assessed after varying parameters such as MB face charge, MB concentration, flow channel geometry, ultrasound pressure, and delivery time point after ultrasound treatment. MBs with a cationic surface charge caused statistically significant increases in calcein delivery during acoustofluidic treatment compared to MBs with a neutral surface charge (p < 0.001). Calcein delivery was significantly higher with a concentric spiral channel geometry compared to a rectilinear channel geometry (p < 0.001). Additionally, calcein delivery was significantly enhanced at increased ultrasound pressures of 5.1 MPa compared to lower ultrasound pressures between 0-3.8 MPa (p < 0.001). These results demonstrate that a 3D-printed acoustofluidic device can significantly enhance intracellular delivery of biomolecules to T cells, which may be a viable approach to advance cell-based therapies.
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Affiliation(s)
- Connor S Centner
- Department of Bioengineering, University of Louisville, Louisville, Kentucky 40292, USA
| | - John T Moore
- Department of Bioengineering, University of Louisville, Louisville, Kentucky 40292, USA
| | - Mary E Baxter
- Department of Bioengineering, University of Louisville, Louisville, Kentucky 40292, USA
| | - Zachary T Long
- Department of Bioengineering, University of Louisville, Louisville, Kentucky 40292, USA
| | - Jacob M Miller
- Department of Chemical Engineering, University of Louisville, Louisville, Kentucky 40292, USA
| | | | - Benjamin Xie
- Department of Biology, University of Louisville, Louisville, Kentucky 40292, USA
| | - Michael A Menze
- Department of Biology, University of Louisville, Louisville, Kentucky 40292, USA
| | - R Eric Berson
- Department of Chemical Engineering, University of Louisville, Louisville, Kentucky 40292, USA
| | - Paula J Bates
- School of Medicine, University of Louisville, Louisville, Kentucky 40202, USA
| | - Kavitha Yaddanapudi
- Department of Surgery, University of Louisville, Louisville, Kentucky 40202, USA
| | - Jonathan A Kopechek
- Department of Bioengineering, University of Louisville, Louisville, Kentucky 40292, USA
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7
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Regnault G, Mauger C, Blanc-Benon P, Doinikov AA, Inserra C. Signatures of microstreaming patterns induced by non-spherically oscillating bubbles. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2021; 150:1188. [PMID: 34470320 DOI: 10.1121/10.0005821] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 07/14/2021] [Indexed: 06/13/2023]
Abstract
In this study, we report recent theoretical and experimental developments dealing with the axisymmetric flow surrounding non-spherically oscillating microbubbles. A wide variety of microstreaming patterns is revealed using a theoretical modeling providing exact analytical solutions of the second-order mean flows. The streaming pattern is highly dependent on the modal content of the bubble interface oscillation, including possibly spherical, translational, and nonspherical modes, as well as any combination of these modes. Experimental results on fluid flow induced by a single, non-spherically oscillating bubble in an unbounded fluid are presented and successfully compared to the theoretical predictions.
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Affiliation(s)
- Gabriel Regnault
- Univ Lyon, École Centrale de Lyon, CNRS, Univ Claude Bernard Lyon 1, INSA Lyon, LMFA, UMR5509, 69130, F-69134 Écully, France
| | - Cyril Mauger
- Univ Lyon, École Centrale de Lyon, CNRS, Univ Claude Bernard Lyon 1, INSA Lyon, LMFA, UMR5509, 69130, F-69134 Écully, France
| | - Philippe Blanc-Benon
- Univ Lyon, École Centrale de Lyon, CNRS, Univ Claude Bernard Lyon 1, INSA Lyon, LMFA, UMR5509, 69130, F-69134 Écully, France
| | - Alexander A Doinikov
- Univ Lyon, École Centrale de Lyon, Collegium de Lyon, CNRS, Univ Claude Bernard Lyon 1, INSA Lyon, LMFA, UMR5509, 69130, Écully, France
| | - Claude Inserra
- Univ Lyon, Université Lyon 1, Centre Léon Bérard, INSERM, LabTAU, F-69003, LYON, France
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8
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Bodé WN, Bruus H. Numerical study of the coupling layer between transducer and chip in acoustofluidic devices. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2021; 149:3096. [PMID: 34241126 DOI: 10.1121/10.0004871] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/16/2021] [Indexed: 06/13/2023]
Abstract
By numerical simulation in two and three dimensions, the coupling layer between the transducer and microfluidic chip in ultrasound acoustofluidic devices is studied. The model includes the transducer with electrodes, microfluidic chip with a liquid-filled microchannel, and coupling layer between the transducer and chip. Two commonly used coupling materials, solid epoxy glue and viscous glycerol, as well as two commonly used device types, glass capillary tubes and silicon-glass chips, are considered. It is studied how acoustic resonances in ideal devices without a coupling layer are either sustained or attenuated as a coupling layer of increasing thickness is inserted. A simple criterion based on the phase of the acoustic wave for whether a given zero-layer resonance is sustained or attenuated by the addition of a coupling layer is established. Finally, by controlling the thickness and the material, it is shown that the coupling layer can be used as a design component for optimal and robust acoustofluidic resonances.
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Affiliation(s)
- William Naundrup Bodé
- Department of Physics, Technical University of Denmark, Danmarks Tekniske Universitet Physics Building 309, Kongens Lyngby, DK-2800, Denmark
| | - Henrik Bruus
- Department of Physics, Technical University of Denmark, Danmarks Tekniske Universitet Physics Building 309, Kongens Lyngby, DK-2800, Denmark
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9
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Versluis M, Stride E, Lajoinie G, Dollet B, Segers T. Ultrasound Contrast Agent Modeling: A Review. ULTRASOUND IN MEDICINE & BIOLOGY 2020; 46:2117-2144. [PMID: 32546411 DOI: 10.1016/j.ultrasmedbio.2020.04.014] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 04/11/2020] [Accepted: 04/14/2020] [Indexed: 05/21/2023]
Abstract
Ultrasound is extensively used in medical imaging, being safe and inexpensive and operating in real time. Its scope of applications has been widely broadened by the use of ultrasound contrast agents (UCAs) in the form of microscopic bubbles coated by a biocompatible shell. Their increased use has motivated a large amount of research to understand and characterize their physical properties as well as their interaction with the ultrasound field and their surrounding environment. Here we review the theoretical models that have been proposed to study and predict the behavior of UCAs. We begin with a brief introduction on the development of UCAs. We then present the basics of free-gas-bubble dynamics upon which UCA modeling is based. We review extensively the linear and non-linear models for shell elasticity and viscosity and present models for non-spherical and asymmetric bubble oscillations, especially in the presence of surrounding walls or tissue. Then, higher-order effects such as microstreaming, shedding and acoustic radiation forces are considered. We conclude this review with promising directions for the modeling and development of novel agents.
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Affiliation(s)
- Michel Versluis
- Physics of Fluids Group, MESA+ Institute for Nanotechnology, Technical Medical (TechMed) Center, University of Twente, Enschede, the Netherlands.
| | - Eleanor Stride
- Department of Engineering Science, Institute of Biomedical Engineering, University of Oxford, Oxford, UK
| | - Guillaume Lajoinie
- Physics of Fluids Group, MESA+ Institute for Nanotechnology, Technical Medical (TechMed) Center, University of Twente, Enschede, the Netherlands
| | - Benjamin Dollet
- Centre National de la Recherche Scientifique (CNRS), Laboratoire Interdisciplinaire de Physique (LIPhy), Université Grenoble Alpes, Grenoble, France
| | - Tim Segers
- Physics of Fluids Group, MESA+ Institute for Nanotechnology, Technical Medical (TechMed) Center, University of Twente, Enschede, the Netherlands
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10
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Pereno V, Lei J, Carugo D, Stride E. Microstreaming inside Model Cells Induced by Ultrasound and Microbubbles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:6388-6398. [PMID: 32407094 DOI: 10.1021/acs.langmuir.0c00536] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Studies on the bioeffects produced by ultrasound and microbubbles have focused primarily on transport in bulk tissue, drug uptake by individual cells, and disruption of biological membranes. Relatively little is known about the physical perturbations and fluid dynamics of the intracellular environment during ultrasound exposure. To investigate this, a custom acoustofluidic chamber was designed to expose model cells, in the form of giant unilamellar vesicles, to ultrasound and microbubbles. The motion of fluorescent tracer beads within the lumen of the vesicles was tracked during exposure to laminar flow (∼1 mm s-1), ultrasound (1 MHz, ∼150 kPa, 60 s), and phospholipid-coated microbubbles, alone and in combination. To decouple the effects of fluid flow and ultrasound exposure, the system was also modeled numerically by using boundary-driven streaming field equations. Both the experimental and numerical results indicate that all conditions produced internal streaming within the vesicles. Ultrasound alone produced an average bead velocity of 6.5 ± 1.3 μm/s, which increased to 8.5 ± 3.8 μm/s in the presence of microbubbles compared to 12 ± 0.12 μm/s under laminar flow. Further research on intracellular forces in mammalian cells and the associated biological effects in vitro and in vivo are required to fully determine the implications for safety and/or therapy.
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Affiliation(s)
- Valerio Pereno
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford OX3 7DQ, U.K
| | - Junjun Lei
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China
| | - Dario Carugo
- Faculty of Engineering and Physical Sciences and Institute for Life Sciences, Department of Mechanical Engineering, University of Southampton, Southampton SO17 1BJ, U.K
| | - Eleanor Stride
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford OX3 7DQ, U.K
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11
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Centner CS, Murphy EM, Priddy MC, Moore JT, Janis BR, Menze MA, DeFilippis AP, Kopechek JA. Ultrasound-induced molecular delivery to erythrocytes using a microfluidic system. BIOMICROFLUIDICS 2020; 14:024114. [PMID: 32341725 PMCID: PMC7176461 DOI: 10.1063/1.5144617] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 03/22/2020] [Indexed: 05/07/2023]
Abstract
Preservation of erythrocytes in a desiccated state for storage at ambient temperature could simplify blood transfusions in austere environments, such as rural clinics, far-forward military operations, and during space travel. Currently, storage of erythrocytes is limited by a short shelf-life of 42 days at 4 °C, and long-term preservation requires a complex process that involves the addition and removal of glycerol from erythrocytes before and after storage at -80 °C, respectively. Natural compounds, such as trehalose, can protect cells in a desiccated state if they are present at sufficient levels inside the cell, but mammalian cell membranes lack transporters for this compound. To facilitate compound loading across the plasma membrane via ultrasound and microbubbles (sonoporation), a polydimethylsiloxane-based microfluidic device was developed. Delivery of fluorescein into erythrocytes was tested at various conditions to assess the effects of parameters such as ultrasound pressure, ultrasound pulse interval, microbubble dose, and flow rate. Changes in ultrasound pressure and mean flow rate caused statistically significant increases in fluorescein delivery of up to 73 ± 37% (p < 0.05) and 44 ± 33% (p < 0.01), respectively, compared to control groups, but no statistically significant differences were detected with changes in ultrasound pulse intervals. Following freeze-drying and rehydration, recovery of viable erythrocytes increased by up to 128 ± 32% after ultrasound-mediated loading of trehalose compared to control groups (p < 0.05). These results suggest that ultrasound-mediated molecular delivery in microfluidic channels may be a viable approach to process erythrocytes for long-term storage in a desiccated state at ambient temperatures.
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Affiliation(s)
- Connor S. Centner
- Department of Bioengineering, University of Louisville, Louisville, Kentucky 40292, USA
| | - Emily M. Murphy
- Department of Bioengineering, University of Louisville, Louisville, Kentucky 40292, USA
| | - Mariah C. Priddy
- Department of Bioengineering, University of Louisville, Louisville, Kentucky 40292, USA
| | - John T. Moore
- Department of Bioengineering, University of Louisville, Louisville, Kentucky 40292, USA
| | - Brett R. Janis
- Department of Biology, University of Louisville, Louisville, Kentucky 40292, USA
| | - Michael A. Menze
- Department of Biology, University of Louisville, Louisville, Kentucky 40292, USA
| | | | - Jonathan A. Kopechek
- Department of Bioengineering, University of Louisville, Louisville, Kentucky 40292, USA
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12
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Zou P, Li M, Wang Z, Zhang G, Jin L, Pang Y, Du L, Duan Y, Liu Z, Shi Q. Micro-Particle Image Velocimetry Investigation of Flow Fields of SonoVue Microbubbles Mediated by Ultrasound and Their Relationship With Delivery. Front Pharmacol 2020; 10:1651. [PMID: 32116672 PMCID: PMC7025580 DOI: 10.3389/fphar.2019.01651] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 12/16/2019] [Indexed: 12/04/2022] Open
Abstract
The flow fields generated by the acoustic behavior of microbubbles can significantly increase cell permeability. This facilitates the cellular uptake of external molecules in a process known as ultrasound-mediated drug delivery. To promote its clinical translation, this study investigated the relationships among the ultrasound parameters, acoustic behavior of microbubbles, flow fields, and delivery results. SonoVue microbubbles were activated by 1 MHz pulsed ultrasound with 100 Hz pulse repetition frequency, 1:5 duty cycle, and 0.20/0.35/0.70 MPa peak rarefactional pressure. Micro-particle image velocimetry was used to detect the microbubble behavior and the resulting flow fields. Then HeLa human cervical cancer cells were treated with the same conditions for 2, 4, 10, 30, and 60 s, respectively. Fluorescein isothiocyanate and propidium iodide were used to quantitate the rates of sonoporated cells with a flow cytometer. The results indicate that (1) microbubbles exhibited different behavior in ultrasound fields of different peak rarefactional pressures. At peak rarefactional pressures of 0.20 and 0.35 MPa, the dispersed microbubbles clumped together into clusters, and the clusters showed no apparent movement. At a peak rarefactional pressure of 0.70 MPa, the microbubbles were partially broken, and the remainders underwent clustering and coalescence to form bubble clusters that exhibited translational oscillation. (2) The flow fields were unsteady before the unification of the microbubbles. After that, the flow fields showed a clear pattern. (3)The delivery efficiency improved with the shear stress of the flow fields increased. Before the formation of the microbubble/bubble cluster, the maximum shear stresses of the 0.20, 0.35, and 0.70 MPa groups were 56.0, 87.5 and 406.4 mPa, respectively, and the rates of the reversibly sonoporated cells were 2.4% ± 0.4%, 5.5% ± 1.3%, and 16.6% ± 0.2%. After the cluster formation, the maximum shear stresses of the three groups were 9.1, 8.7, and 71.7 mPa, respectively. The former two could not mediate sonoporation, whereas the last one could. These findings demonstrate the critical role of flow fields in ultrasound-mediated drug delivery and contribute to its clinical applications.
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Affiliation(s)
- Penglin Zou
- Department of Ultrasound, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mengqi Li
- College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, China
| | - Ziqi Wang
- Department of Ultrasound, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guoxiu Zhang
- Department of Emergency, The First Affiliated Hospital of Henan University of Science and Technology, Luoyang, China
| | - Lifang Jin
- Department of Ultrasound, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Pang
- College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, China
| | - Lianfang Du
- Department of Ultrasound, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yourong Duan
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhaomiao Liu
- College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, China
| | - Qiusheng Shi
- Department of Ultrasound, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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13
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Mannaris C, Yang C, Carugo D, Owen J, Lee JY, Nwokeoha S, Seth A, Teo BM. Acoustically responsive polydopamine nanodroplets: A novel theranostic agent. ULTRASONICS SONOCHEMISTRY 2020; 60:104782. [PMID: 31539725 DOI: 10.1016/j.ultsonch.2019.104782] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 08/21/2019] [Accepted: 09/06/2019] [Indexed: 05/06/2023]
Abstract
Ultrasound-induced cavitation has been used as a tool of enhancing extravasation and tissue penetration of anticancer agents in tumours. Initiating cavitation in tissue however, requires high acoustic intensities that are neither safe nor easy to achieve with current clinical systems. The use of cavitation nuclei can however lower the acoustic intensities required to initiate cavitation and the resulting bio-effects in situ. Microbubbles, solid gas-trapping nanoparticles, and phase shift nanodroplets are some examples in a growing list of proposed cavitation nuclei. Besides the ability to lower the cavitation threshold, stability, long circulation times, biocompatibility and biodegradability, are some of the desirable characteristics that a clinically applicable cavitation agent should possess. In this study, we present a novel formulation of ultrasound-triggered phase transition sub-micrometer sized nanodroplets (~400 nm) stabilised with a biocompatible polymer, polydopamine (PDA). PDA offers some important benefits: (1) facile fabrication, as dopamine monomers are directly polymerised on the nanodroplets, (2) high polymer biocompatibility, and (3) ease of functionalisation with other molecules such as drugs or targeting species. We demonstrate that the acoustic intensities required to initiate inertial cavitation can all be achieved with existing clinical ultrasound systems. Cell viability and haemolysis studies show that nanodroplets are biocompatible. Our results demonstrate the great potential of PDA nanodroplets as an acoustically active nanodevice, which is highly valuable for biomedical applications including drug delivery and treatment monitoring.
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Affiliation(s)
- Christophoros Mannaris
- Institute of Biomedical Engineering, Old Road Campus Research Building, University of Oxford, Oxford OX3 7DQ, UK.
| | - Chuanxu Yang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China
| | - Dario Carugo
- Institute of Biomedical Engineering, Old Road Campus Research Building, University of Oxford, Oxford OX3 7DQ, UK; Mechatronics and Bioengineering Science Research Groups, Faculty of Engineering and the Environment, University of Southampton, Southampton, UK
| | - Joshua Owen
- Institute of Biomedical Engineering, Old Road Campus Research Building, University of Oxford, Oxford OX3 7DQ, UK
| | - Jeong Yu Lee
- Institute of Biomedical Engineering, Old Road Campus Research Building, University of Oxford, Oxford OX3 7DQ, UK
| | - Sandra Nwokeoha
- Institute of Biomedical Engineering, Old Road Campus Research Building, University of Oxford, Oxford OX3 7DQ, UK
| | - Anjali Seth
- Institute of Biomedical Engineering, Old Road Campus Research Building, University of Oxford, Oxford OX3 7DQ, UK
| | - Boon Mian Teo
- Institute of Biomedical Engineering, Old Road Campus Research Building, University of Oxford, Oxford OX3 7DQ, UK; Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China; School of Chemistry, Clayton Campus, Monash University Victoria, 3800, Australia.
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14
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Meng L, Liu X, Wang Y, Zhang W, Zhou W, Cai F, Li F, Wu J, Xu L, Niu L, Zheng H. Sonoporation of Cells by a Parallel Stable Cavitation Microbubble Array. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019. [PMID: 31508275 DOI: 10.1002/advs.v6.1710.1002/advs.201900557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Sonoporation is a targeted drug delivery technique that employs cavitation microbubbles to generate transient pores in the cell membrane, allowing foreign substances to enter cells by passing through the pores. Due to the broad size distribution of microbubbles, cavitation events appear to be a random process, making it difficult to achieve controllable and efficient sonoporation. In this work a technique is reported using a microfluidic device that enables in parallel modulation of membrane permeability by an oscillating microbubble array. Multirectangular channels of uniform size are created at the sidewall to generate an array of monodispersed microbubbles, which oscillate with almost the same amplitude and resonant frequency, ensuring homogeneous sonoporation with high efficacy. Stable harmonic and high harmonic signals emitted by individual oscillating microbubbles are detected by a laser Doppler vibrometer, which indicates stable cavitation occurred. Under the influence of the acoustic radiation forces induced by the oscillating microbubble, single cells can be trapped at an oscillating microbubble surface. The sonoporation of single cells is directly influenced by the individual oscillating microbubble. The parallel sonoporation of multiple cells is achieved with an efficiency of 96.6 ± 1.74% at an acoustic pressure as low as 41.7 kPa.
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Affiliation(s)
- Long Meng
- Paul C. Lauterbur Research Center for Biomedical Imaging Institute of Biomedical and Health Engineering Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences 1068 Xueyuan Avenue Shenzhen 518055 China
- CAS Key Laboratory of Health Informatics Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences 1068 Xueyuan Avenue Shenzhen 518055 China
| | - Xiufang Liu
- Paul C. Lauterbur Research Center for Biomedical Imaging Institute of Biomedical and Health Engineering Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences 1068 Xueyuan Avenue Shenzhen 518055 China
- Sino-Dutch Biomedical and Information Engineering School Northeastern University 195 Innovation road Shenyang 110169 China
| | - Yuchen Wang
- Paul C. Lauterbur Research Center for Biomedical Imaging Institute of Biomedical and Health Engineering Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences 1068 Xueyuan Avenue Shenzhen 518055 China
- Faculty of Engineering and Architecture Ghent University Jozef Plateaustraat 22 9000 Ghent Belgium
| | - Wenjun Zhang
- Paul C. Lauterbur Research Center for Biomedical Imaging Institute of Biomedical and Health Engineering Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences 1068 Xueyuan Avenue Shenzhen 518055 China
- Key Laboratory of E&M Ministry of Education & Zhejiang Province Zhejiang University of Technology 18 Chaowang Road Hangzhou 310014 China
| | - Wei Zhou
- Paul C. Lauterbur Research Center for Biomedical Imaging Institute of Biomedical and Health Engineering Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences 1068 Xueyuan Avenue Shenzhen 518055 China
| | - Feiyan Cai
- Paul C. Lauterbur Research Center for Biomedical Imaging Institute of Biomedical and Health Engineering Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences 1068 Xueyuan Avenue Shenzhen 518055 China
- CAS Key Laboratory of Health Informatics Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences 1068 Xueyuan Avenue Shenzhen 518055 China
| | - Fei Li
- Paul C. Lauterbur Research Center for Biomedical Imaging Institute of Biomedical and Health Engineering Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences 1068 Xueyuan Avenue Shenzhen 518055 China
- CAS Key Laboratory of Health Informatics Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences 1068 Xueyuan Avenue Shenzhen 518055 China
| | - Junru Wu
- Department of Physics University of Vermont Burlington VT 05405 USA
| | - Lisheng Xu
- Sino-Dutch Biomedical and Information Engineering School Northeastern University 195 Innovation road Shenyang 110169 China
| | - Lili Niu
- Paul C. Lauterbur Research Center for Biomedical Imaging Institute of Biomedical and Health Engineering Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences 1068 Xueyuan Avenue Shenzhen 518055 China
- CAS Key Laboratory of Health Informatics Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences 1068 Xueyuan Avenue Shenzhen 518055 China
| | - Hairong Zheng
- Paul C. Lauterbur Research Center for Biomedical Imaging Institute of Biomedical and Health Engineering Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences 1068 Xueyuan Avenue Shenzhen 518055 China
- CAS Key Laboratory of Health Informatics Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences 1068 Xueyuan Avenue Shenzhen 518055 China
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15
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Meng L, Liu X, Wang Y, Zhang W, Zhou W, Cai F, Li F, Wu J, Xu L, Niu L, Zheng H. Sonoporation of Cells by a Parallel Stable Cavitation Microbubble Array. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900557. [PMID: 31508275 PMCID: PMC6724477 DOI: 10.1002/advs.201900557] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 05/15/2019] [Indexed: 05/06/2023]
Abstract
Sonoporation is a targeted drug delivery technique that employs cavitation microbubbles to generate transient pores in the cell membrane, allowing foreign substances to enter cells by passing through the pores. Due to the broad size distribution of microbubbles, cavitation events appear to be a random process, making it difficult to achieve controllable and efficient sonoporation. In this work a technique is reported using a microfluidic device that enables in parallel modulation of membrane permeability by an oscillating microbubble array. Multirectangular channels of uniform size are created at the sidewall to generate an array of monodispersed microbubbles, which oscillate with almost the same amplitude and resonant frequency, ensuring homogeneous sonoporation with high efficacy. Stable harmonic and high harmonic signals emitted by individual oscillating microbubbles are detected by a laser Doppler vibrometer, which indicates stable cavitation occurred. Under the influence of the acoustic radiation forces induced by the oscillating microbubble, single cells can be trapped at an oscillating microbubble surface. The sonoporation of single cells is directly influenced by the individual oscillating microbubble. The parallel sonoporation of multiple cells is achieved with an efficiency of 96.6 ± 1.74% at an acoustic pressure as low as 41.7 kPa.
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Affiliation(s)
- Long Meng
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institutes of Advanced TechnologyChinese Academy of Sciences1068 Xueyuan AvenueShenzhen518055China
- CAS Key Laboratory of Health InformaticsShenzhen Institutes of Advanced TechnologyChinese Academy of Sciences1068 Xueyuan AvenueShenzhen518055China
| | - Xiufang Liu
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institutes of Advanced TechnologyChinese Academy of Sciences1068 Xueyuan AvenueShenzhen518055China
- Sino‐Dutch Biomedical and Information Engineering SchoolNortheastern University195 Innovation roadShenyang110169China
| | - Yuchen Wang
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institutes of Advanced TechnologyChinese Academy of Sciences1068 Xueyuan AvenueShenzhen518055China
- Faculty of Engineering and ArchitectureGhent UniversityJozef Plateaustraat 229000GhentBelgium
| | - Wenjun Zhang
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institutes of Advanced TechnologyChinese Academy of Sciences1068 Xueyuan AvenueShenzhen518055China
- Key Laboratory of E&MMinistry of Education & Zhejiang ProvinceZhejiang University of Technology18 Chaowang RoadHangzhou310014China
| | - Wei Zhou
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institutes of Advanced TechnologyChinese Academy of Sciences1068 Xueyuan AvenueShenzhen518055China
| | - Feiyan Cai
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institutes of Advanced TechnologyChinese Academy of Sciences1068 Xueyuan AvenueShenzhen518055China
- CAS Key Laboratory of Health InformaticsShenzhen Institutes of Advanced TechnologyChinese Academy of Sciences1068 Xueyuan AvenueShenzhen518055China
| | - Fei Li
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institutes of Advanced TechnologyChinese Academy of Sciences1068 Xueyuan AvenueShenzhen518055China
- CAS Key Laboratory of Health InformaticsShenzhen Institutes of Advanced TechnologyChinese Academy of Sciences1068 Xueyuan AvenueShenzhen518055China
| | - Junru Wu
- Department of PhysicsUniversity of VermontBurlingtonVT05405USA
| | - Lisheng Xu
- Sino‐Dutch Biomedical and Information Engineering SchoolNortheastern University195 Innovation roadShenyang110169China
| | - Lili Niu
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institutes of Advanced TechnologyChinese Academy of Sciences1068 Xueyuan AvenueShenzhen518055China
- CAS Key Laboratory of Health InformaticsShenzhen Institutes of Advanced TechnologyChinese Academy of Sciences1068 Xueyuan AvenueShenzhen518055China
| | - Hairong Zheng
- Paul C. Lauterbur Research Center for Biomedical ImagingInstitute of Biomedical and Health EngineeringShenzhen Institutes of Advanced TechnologyChinese Academy of Sciences1068 Xueyuan AvenueShenzhen518055China
- CAS Key Laboratory of Health InformaticsShenzhen Institutes of Advanced TechnologyChinese Academy of Sciences1068 Xueyuan AvenueShenzhen518055China
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16
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Jamburidze A, Huerre A, Baresch D, Poulichet V, De Corato M, Garbin V. Nanoparticle-Coated Microbubbles for Combined Ultrasound Imaging and Drug Delivery. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:10087-10096. [PMID: 31033294 DOI: 10.1021/acs.langmuir.8b04008] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Biomedical microbubbles stabilized by a coating of magnetic or drug-containing nanoparticles show great potential for theranostics applications. Nanoparticle-coated microbubbles can be made to be stable, to be echogenic, and to release the cargo of drug-containing nanoparticles with an ultrasound trigger. This Article reviews the design principles of nanoparticle-coated microbubbles for ultrasound imaging and drug delivery, with a particular focus on the physical chemistry of nanoparticle-coated interfaces; the formation, stability, and dynamics of nanoparticle-coated bubbles; and the conditions for controlled nanoparticle release in ultrasound. The emerging understanding of the modes of nanoparticle expulsion and of the transport of expelled material by microbubble-induced flow is paving the way toward more efficient nanoparticle-mediated drug delivery. This Article highlights the knowledge gap that still remains to be addressed before we can control these phenomena.
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Affiliation(s)
- Akaki Jamburidze
- Department of Chemical Engineering , Imperial College London , London SW7 2AZ , United Kingdom
| | - Axel Huerre
- Department of Chemical Engineering , Imperial College London , London SW7 2AZ , United Kingdom
| | - Diego Baresch
- Department of Chemical Engineering , Imperial College London , London SW7 2AZ , United Kingdom
| | - Vincent Poulichet
- Department of Chemistry , Ecole Normale Superieure , 75005 Paris , France
| | - Marco De Corato
- Department of Chemical Engineering , Imperial College London , London SW7 2AZ , United Kingdom
| | - Valeria Garbin
- Department of Chemical Engineering , Imperial College London , London SW7 2AZ , United Kingdom
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17
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Fix SM, Koppolu BP, Novell A, Hopkins J, Kierski TM, Zaharoff DA, Dayton PA, Papadopoulou V. Ultrasound-Stimulated Phase-Change Contrast Agents for Transepithelial Delivery of Macromolecules, Toward Gastrointestinal Drug Delivery. ULTRASOUND IN MEDICINE & BIOLOGY 2019; 45:1762-1776. [PMID: 31003709 PMCID: PMC6701470 DOI: 10.1016/j.ultrasmedbio.2019.02.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 02/01/2019] [Accepted: 02/06/2019] [Indexed: 05/23/2023]
Abstract
The gastrointestinal (GI) tract presents a notoriously difficult barrier for macromolecular drug delivery, especially for biologics. Herein, we demonstrate that ultrasound-stimulated phase change contrast agents (PCCAs) can transiently disrupt confluent colorectal adenocarcinoma monolayers and improve the transepithelial transport of a macromolecular model drug. With ultrasound treatment in the presence of PCCAs, we achieved a maximum of 44 ± 15% transepithelial delivery of 70-kDa fluorescein isothiocyanate-dextran, compared with negligible delivery through sham control monolayers. Among all tested rarefactional pressures (300-600 kPa), dextran delivery efficiency was consistently greatest at 300 kPa. To explore this unexpected finding, we quantified stable and inertial cavitation energy generated by various ultrasound exposure conditions. In general, lower pressures resulted in more persistent cavitation activity during the 30-s ultrasound exposures, which may explain the enhanced dextran delivery efficiency. Thus, a unique advantage of using low boiling point PCCAs for this application is that the same low-pressure pulses can be used to induce vaporization and provide maximal delivery.
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Affiliation(s)
- Samantha M Fix
- Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Bhanu P Koppolu
- Joint Department of Biomedical Engineering, University of North Carolina and North Carolina State University, Chapel Hill, NC 27599, USA
| | - Anthony Novell
- IR4M, Université Paris-Saclay, CNRS UMR 8081, 91401 Orsay, France
| | - Jared Hopkins
- Joint Department of Biomedical Engineering, University of North Carolina and North Carolina State University, Chapel Hill, NC 27599, USA
| | - Thomas M Kierski
- Joint Department of Biomedical Engineering, University of North Carolina and North Carolina State University, Chapel Hill, NC 27599, USA
| | - David A Zaharoff
- Joint Department of Biomedical Engineering, University of North Carolina and North Carolina State University, Chapel Hill, NC 27599, USA
| | - Paul A Dayton
- Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA; Joint Department of Biomedical Engineering, University of North Carolina and North Carolina State University, Chapel Hill, NC 27599, USA
| | - Virginie Papadopoulou
- Joint Department of Biomedical Engineering, University of North Carolina and North Carolina State University, Chapel Hill, NC 27599, USA.
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