1
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Yang SH, Song WL, Fan LL, Deng CF, Xie R, Wang W, Liu Z, Pan DW, Ju XJ, Chu LY. Microfluidic fabrication of monodisperse microcapsules with gas cores. LAB ON A CHIP 2024; 24:3556-3567. [PMID: 38949110 DOI: 10.1039/d4lc00443d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
A facile strategy for efficient and continuous fabrication of monodisperse gas-core microcapsules with controllable sizes and excellent ultrasound-induced burst performances is developed based on droplet microfluidics and interfacial polymerization. Monodisperse gas-in-oil-in-water (G/O/W) double emulsion droplets with a gas core and monomer-contained oil layer are fabricated in the upstream of a microfluidic device as templates, and then water-soluble monomers are added into the aqueous continuous phase in the downstream to initiate rapid interfacial polymerization at the O/W interfaces to prepare monodisperse gas-in-oil-in-solid (G/O/S) microcapsules with gas cores. The sizes of both microbubbles and G/O/W droplet templates can be precisely controlled by adjusting the gas supply pressure and the fluid flow rates. Due to the very thin shells of G/O/S microcapsules fabricated via interfacial polymerization, the sizes of the resultant G/O/S microcapsules are almost the same as those of the G/O/W droplet templates, and the microcapsules exhibit excellent deformable properties and ultrasound-induced burst performances. The proposed strategy provides a facile and efficient route for controllably and continuously fabricating monodisperse microcapsules with gas cores, which are highly desired for biomedical applications.
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Affiliation(s)
- Shi-Hao Yang
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China.
| | - Wan-Lu Song
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China.
| | - Lin-Ling Fan
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China.
| | - Chuan-Fu Deng
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China.
| | - Rui Xie
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China.
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Wei Wang
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China.
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Zhuang Liu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China.
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Da-Wei Pan
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China.
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Xiao-Jie Ju
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China.
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Liang-Yin Chu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China.
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2
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Wang K, Zhang M, Geng Z, Zhang S, Deng Z, Tan J, Zhang Q, Jiao Z, Gu N. One-Step Preparation of Magnetic Lipid Bubbles: Magnetothermal Effect Induces the Simultaneous Formation of Gas Nuclei and Self-Assembly of Phospholipids. ACS APPLIED MATERIALS & INTERFACES 2024; 16:30755-30765. [PMID: 38847111 DOI: 10.1021/acsami.4c03788] [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: 06/22/2024]
Abstract
In recent years, enveloped micro-nanobubbles have garnered significant attention in research due to their commendable stability, biocompatibility, and other notable properties. Currently, the preparation methods of enveloped micro-nanobubbles have limitations such as complicated preparation process, large bubble size, wide distribution range, low yield, etc. There exists an urgent demand to devise a simple and efficient method for the preparation of enveloped micro-nanobubbles, ensuring both high concentration and a uniform particle size distribution. Magnetic lipid bubbles (MLBs) are a multifunctional type of enveloped micro-nanobubble combining magnetic nanoparticles with lipid-coated bubbles. In this study, MLBs are prepared simply and efficiently by a magneto internal heat bubble generation process based on the interfacial self-assembly of iron oxide nanoparticles induced by the thermogenic effect in an alternating magnetic field. The mean hydrodynamic diameter of the MLBs obtained was 384.9 ± 8.5 nm, with a polydispersity index (PDI) of 0.248 ± 0.021, a zeta potential of -30.5 ± 1.0 mV, and a concentration of (7.92 ± 0.46) × 109 bubbles/mL. Electron microscopy results show that the MLBs have a regular spherical stable core-shell structure. The superparamagnetic iron oxide nanoparticles (SPIONs) and phospholipid layers adsorbed around the spherical gas nuclei of the MLBs, leading the particles to demonstrate commendable superparamagnetic and magnetic properties. In addition, the effects of process parameters on the morphology of MLBs, including phospholipid concentration, phospholipid proportiona, current intensity, magnetothermal time, and SPION concentration, were investigated and discussed to achieve controlled preparation of MLBs. In vitro imaging results reveal that the higher the concentration of MLBs loaded with iron oxide nanoparticles, the better the in vitro ultrasound (US) imaging and magnetic resonance imaging (MRI) results. This study proves that the magneto internal heat bubble generation process is a simple and efficient technique for preparing MLBs with high concentration, regular structure, and commendable properties. These findings lay a robust foundation for the mass production and application of enveloped micro-nanobubbles, particularly in biomedical fields and other related domains.
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Affiliation(s)
- Kailin Wang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu 211189, PR China
- Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu 211189, PR China
| | - Mengnan Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu 211189, PR China
- Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu 211189, PR China
| | - Zejin Geng
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu 211189, PR China
- Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu 211189, PR China
- Joint Research Institute of Southeast University and Monash University, Suzhou, Jiangsu 215123, PR China
| | - Shuo Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu 211189, PR China
- Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu 211189, PR China
| | - Zhuang Deng
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu 211189, PR China
- Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu 211189, PR China
| | - Jin Tan
- Department of Geriatrics, Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin 300052, PR China
| | - Qiang Zhang
- Department of Geriatrics, Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin 300052, PR China
| | - Zhen Jiao
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu 211189, PR China
- Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu 211189, PR China
- Joint Research Institute of Southeast University and Monash University, Suzhou, Jiangsu 215123, PR China
| | - Ning Gu
- Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu 211189, PR China
- Medical School, Nanjing University, Nanjing, Jiangsu 210093, PR China
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3
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Kim I, Elliott JC, Lawanprasert A, Wood GM, Simon JC, Medina SH. Real-Time, In Situ Imaging of Macrophages via Phase-Change Peptide Nanoemulsions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301673. [PMID: 37452514 PMCID: PMC10787802 DOI: 10.1002/smll.202301673] [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: 02/24/2023] [Revised: 06/22/2023] [Indexed: 07/18/2023]
Abstract
Macrophages are specialized phagocytes that play central roles in immunity and tissue repair. Their diverse functionalities have led to an evolution of new allogenic and autologous macrophage products. However, realizing the full therapeutic potential of these cell-based therapies requires development of imaging technologies that can track immune cell migration within tissues in real-time. Such innovations will not only inform treatment regimens and empower interpretation of therapeutic outcomes but also enable prediction and early intervention during adverse events. Here, phase-changing nanoemulsion contrast agents are reported that permit real-time, continuous, and high-fidelity ultrasound imaging of macrophages in situ. Using a de novo designed peptide emulsifier, liquid perfluorocarbon nanoemulsions are prepared and show that rational control over interfacial peptide assembly affords formulations with tunable acoustic sensitivity, macrophage internalization, and in cellulo stability. Imaging experiments demonstrate that emulsion-loaded macrophages can be readily visualized using standard diagnostic B-mode and Doppler ultrasound modalities. This allows on-demand and long-term tracking of macrophages within porcine coronary arteries, as an exemplary model. The results demonstrate that this platform is poised to open new opportunities for non-invasive, contrast-enhanced imaging of cell-based immunotherapies in tissues, while leveraging the low-cost, portable, and safe nature of diagnostic ultrasound.
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Affiliation(s)
- Inhye Kim
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA, 16802-4400, USA
| | - Jacob C Elliott
- Graduate Program in Acoustics, Pennsylvania State University, University Park, PA, 16802-4400, USA
| | - Atip Lawanprasert
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA, 16802-4400, USA
| | - Grace M Wood
- Graduate Program in Acoustics, Pennsylvania State University, University Park, PA, 16802-4400, USA
| | - Julianna C Simon
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA, 16802-4400, USA
- Graduate Program in Acoustics, Pennsylvania State University, University Park, PA, 16802-4400, USA
| | - Scott H Medina
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA, 16802-4400, USA
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, 16802-4400, USA
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4
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Jiang Z, Xiao W, Fu Q. Stimuli responsive nanosonosensitizers for sonodynamic therapy. J Control Release 2023; 361:547-567. [PMID: 37567504 DOI: 10.1016/j.jconrel.2023.08.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 07/27/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023]
Abstract
Sonodynamic therapy (SDT) has gained significant attention in the treatment of deep tumors and multidrug-resistant (MDR) bacterial infections due to its high tissue penetration depth, high spatiotemporal selectivity, and noninvasive therapeutic method. SDT combines low-intensity ultrasound (US) and sonosensitizers to produce lethal reactive oxygen species (ROS) and external damage, which is the main mechanism behind this therapy. However, traditional organic small-molecule sonosensitizers display poor water solubility, strong phototoxicity, and insufficient targeting ability. Inorganic sonosensitizers, on the other hand, have low ROS yield and poor biocompatibility. These drawbacks have hindered SDT's clinical transformation and application. Hence, designing stimuli-responsive nano-sonosensitizers that make use of the lesion's local microenvironment characteristics and US stimulation is an excellent alternative for achieving efficient, specific, and safe treatment. In this review, we provide a comprehensive overview of the currently accepted mechanisms in SDT and discuss the application of responsive nano-sonosensitizers in the treatment of tumor and bacterial infections. Additionally, we emphasize the significance of the principle and process of response, based on the classification of response patterns. Finally, this review emphasizes the potential limitations and future perspectives of SDT that need to be addressed to promote its clinical transformation.
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Affiliation(s)
- Zeyu Jiang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China; Department of Cardiovascular Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266003, China
| | - Wenjing Xiao
- Department of Radiotherapy, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Qinrui Fu
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China.
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5
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Deng Q, Mi J, Dong J, Chen Y, Chen L, He J, Zhou J. Superiorly Stable Three-Layer Air Microbubbles Generated by Versatile Ethanol-Water Exchange for Contrast-Enhanced Ultrasound Theranostics. ACS NANO 2023; 17:263-274. [PMID: 36354372 DOI: 10.1021/acsnano.2c07300] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Microbubbles have been widely used as ultrasound contrast agents in clinical diagnosis. Moreover, most current preparation methods for microbubbles are uncontrollable, and the as-obtained microbubbles are unstable in aqueous solution or under ultrasound. Here, we report a strategy to prepare superiorly stable microbubbles with three-layer structures by the ethanol-water exchange. This versatile method can also be applied to prepare different kinds of protein microbubbles with various sizes for advanced biomedical applications. To demonstrate this, the protein air microbubbles are created, which is stable in water for several days with intact structures and exhibits excellent contrast-enhanced ultrasound imaging. Moreover, the protein air microbubbles can also deliver a mass of drugs while maintaining their stable structures, making them a platform for ultrasound imaging-guided drug delivery. The versatile protein air microbubbles have great potential for the design and application of theranostic platforms.
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Affiliation(s)
- Qiurong Deng
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou510006, China
| | - Jiaomei Mi
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou510006, China
| | - Jianpei Dong
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou510006, China
| | - Yin Chen
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou510006, China
| | - Lanxi Chen
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou510006, China
| | - Jinxu He
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou510006, China
| | - Jianhua Zhou
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou510006, China
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Wang T, Cornel EJ, Li C, Du J. Drug delivery approaches for enhanced antibiofilm therapy. J Control Release 2023; 353:350-365. [PMID: 36473605 DOI: 10.1016/j.jconrel.2022.12.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 11/06/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022]
Abstract
Biofilms have attracted increasing attention in recent years. Many bacterial infections are associated with biofilm formation. A bacterial biofilm is an aggregated membrane-like substance that is composed of a large number of bacteria and their secreted extracellular polymeric substances. The traditional antibiofilm approaches, such as chemotherapy based on antibiotics, are often ineffective in eradicating biofilms owing to the limited diffusion ability of antibiotics within biofilms and inactivation of antibiotics by biofilms. Moreover, a larger dosage of antibiotics could be effective, but leads to an increased tolerance. Smart drug delivery systems that deliver antibiotics into the biofilm interior is a promising strategy to meet this challenge. In this review, we focus on the methods to improve drug delivery efficiency for enhanced chemotherapy of biofilms. Furthermore, we have summarized chemical approaches for enhanced drug delivery, such as chemical shields, charge reversal, and dual corona enhanced delivery strategies; these methods focus on physicochemical biofilm properties and specific biofilm features. Afterwards, physical approaches are discussed, such as magnetism-mediated drug delivery, electricity-mediated drug delivery, ultrasound-mediated drug delivery, and shock wave-mediated drug delivery. Finally, a perspective on the development of next-generation antibiofilm drug delivery systems is given.
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Affiliation(s)
- Tao Wang
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Erik Jan Cornel
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Chang Li
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China.
| | - Jianzhong Du
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China; Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China.
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7
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Yan J, Fei W, Song Q, Zhu Y, Bu N, Wang L, Zhao M, Zheng X. Cell membrane-camouflaged PLGA biomimetic system for diverse biomedical application. Drug Deliv 2022; 29:2296-2319. [PMID: 35861175 PMCID: PMC9310915 DOI: 10.1080/10717544.2022.2100010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
The emerging cell membrane (CM)-camouflaged poly(lactide-co-glycolide) (PLGA) nanoparticles (NPs) (CM@PLGA NPs) have witnessed tremendous developments since coming to the limelight. Donning a novel membrane coat on traditional PLGA carriers enables combining the strengths of PLGA with cell-like behavior, including inherently interacting with the surrounding environment. Thereby, the in vivo defects of PLGA (such as drug leakage and poor specific distribution) can be overcome, its therapeutic potential can be amplified, and additional novel functions beyond drug delivery can be conferred. To elucidate the development and promote the clinical transformation of CM@PLGA NPs, the commonly used anucleate and eukaryotic CMs have been described first. Then, CM engineering strategies, such as genetic and nongenetic engineering methods and hybrid membrane technology, have been discussed. The reviewed CM engineering technologies are expected to enrich the functions of CM@PLGA for diverse therapeutic purposes. Third, this article highlights the therapeutic and diagnostic applications and action mechanisms of PLGA biomimetic systems for cancer, cardiovascular diseases, virus infection, and eye diseases. Finally, future expectations and challenges are spotlighted in the concept of translational medicine.
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Affiliation(s)
- Jingjing Yan
- Department of Pharmacy, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Weidong Fei
- Department of Pharmacy, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Qianqian Song
- Department of Pharmacy, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yao Zhu
- Department of Pharmacy, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Na Bu
- Department of Pharmacy, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Li Wang
- Department of Pharmacy, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Mengdan Zhao
- Department of Pharmacy, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaoling Zheng
- Department of Pharmacy, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
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8
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Yusefi H, Helfield B. The influence of inter-bubble spacing on the resonance response of ultrasound contrast agent microbubbles. ULTRASONICS SONOCHEMISTRY 2022; 90:106191. [PMID: 36223708 PMCID: PMC9563339 DOI: 10.1016/j.ultsonch.2022.106191] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 09/29/2022] [Accepted: 10/05/2022] [Indexed: 06/06/2023]
Abstract
Ultrasound-driven microbubbles, typically between 1 and 8 µm in diameter, are resonant scatterers that are employed as diagnostic contrast agents and emerging as potentiators of targeted therapies. Microbubbles are administered in populations whereby their radial dynamics - key to their effectiveness - are greatly affected by intrinsic (e.g. bubble size) and extrinsic (e.g. boundaries) factors. In this work, we aim to understand how two neighbouring microbubbles influence each other. We developed a finite element model of a system of two individual phospholipid-encapsulated microbubbles vibrating in proximity to each other to study the effect of inter-bubble distance on microbubble radial resonance response. For the case of two equal-sized and identical bubbles, each bubble exhibits a decrease between 7 and 10% in the frequency of maximum response (fMR) and an increase in amplitude of maximum response (AMR) by 9-11% as compared to its isolated response in free-space, depending on the bubble size examined. For a system of two unequal-sized microbubbles, the large bubble shows no significant change, however the smaller microbubble shows an increase in fMR by 7-11% and a significant decrease in AMR by 38-52%. Furthermore, in very close proximity the small bubble shows a secondary off-resonance peak at the corresponding fMR of its larger companion microbubble. Our work suggests that frequency-dependent microbubble response is greatly affected by the presence of another bubble, which has implications in both imaging and therapy applications. Furthermore, our work suggests a mechanism by which nanobubbles show significant off-resonance vibrations in the clinical frequency range, a behaviour that has been observed experimentally but heretofore unexplained.
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Affiliation(s)
- Hossein Yusefi
- Department of Physics, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - Brandon Helfield
- Department of Physics, Concordia University, Montreal, Quebec H4B 1R6, Canada; Department of Biology, Concordia University, Montreal, Quebec H4B 1R6, Canada.
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9
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Liu Y, Yang G, Hui Y, Ranaweera S, Zhao CX. Microfluidic Nanoparticles for Drug Delivery. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2106580. [PMID: 35396770 DOI: 10.1002/smll.202106580] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/20/2021] [Indexed: 06/14/2023]
Abstract
Nanoparticles (NPs) have attracted tremendous interest in drug delivery in the past decades. Microfluidics offers a promising strategy for making NPs for drug delivery due to its capability in precisely controlling NP properties. The recent success of mRNA vaccines using microfluidics represents a big milestone for microfluidic NPs for pharmaceutical applications, and its rapid scaling up demonstrates the feasibility of using microfluidics for industrial-scale manufacturing. This article provides a critical review of recent progress in microfluidic NPs for drug delivery. First, the synthesis of organic NPs using microfluidics focusing on typical microfluidic methods and their applications in making popular and clinically relevant NPs, such as liposomes, lipid NPs, and polymer NPs, as well as their synthesis mechanisms are summarized. Then, the microfluidic synthesis of several representative inorganic NPs (e.g., silica, metal, metal oxide, and quantum dots), and hybrid NPs is discussed. Lastly, the applications of microfluidic NPs for various drug delivery applications are presented.
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Affiliation(s)
- Yun Liu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Guangze Yang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Yue Hui
- Institute of Advanced Technology, Westlake University, Hangzhou, Zhejiang, 310024, China
| | - Supun Ranaweera
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Chun-Xia Zhao
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
- School of Chemical Engineering and Advanced Materials, Faculty of Engineering, Computer and Mathematical Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia
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10
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Soysal U, Azevedo PN, Bureau F, Aubry A, Carvalho MS, Pessoa ACSN, Torre LGDL, Couture O, Tourin A, Fink M, Tabeling P. Freeze-Dried Microfluidic Monodisperse Microbubbles as a New Generation of Ultrasound Contrast Agents. ULTRASOUND IN MEDICINE & BIOLOGY 2022; 48:1484-1495. [PMID: 35568594 DOI: 10.1016/j.ultrasmedbio.2022.03.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 03/10/2022] [Accepted: 03/17/2022] [Indexed: 06/15/2023]
Abstract
We succeeded in freeze-drying monodisperse microbubbles without degrading their performance, that is, their monodispersity in size and echogenicity. We used microfluidic technology to generate cryoprotected highly monodisperse microbubbles (coefficient of variation [CV] <5%). By using a novel retrieval technique, we were able to freeze-dry the microbubbles and resuspend them without degradation, that is, keeping their size distribution narrow (CV <6%). Acoustic characterization performed in two geometries (a centimetric cell and a millichannel) revealed that the resuspended bubbles conserved the sharpness of the backscattered resonance peak, leading to CVs ranging between 5% and 10%, depending on the geometry. As currently observed with monodisperse bubbles, the peak amplitudes are one order of magnitude higher than those of commercial ultrasound contrast agents. Our work thus solves the question of storage and transportation of highly monodisperse bubbles. This work might open pathways toward novel clinical non-invasive measurements, such as local pressure, impossible to carry out with the existing commercial ultrasound contrast agents.
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Affiliation(s)
- Ugur Soysal
- Microfluidique, MEMS et Nanostructures, Institut Pierre Gilles de Gennes, ESPCI Paris, Université PSL, CNRS, France.
| | - Pedro N Azevedo
- Microfluidique, MEMS et Nanostructures, Institut Pierre Gilles de Gennes, ESPCI Paris, Université PSL, CNRS, France; Institut Langevin, ESPCI Paris, Université PSL, CNRS, France; Department of Mechanical Engineering, PUC-Rio, Brazil
| | - Flavien Bureau
- Institut Langevin, ESPCI Paris, Université PSL, CNRS, France
| | - Alexandre Aubry
- Institut Langevin, ESPCI Paris, Université PSL, CNRS, France
| | | | | | | | | | - Arnaud Tourin
- Institut Langevin, ESPCI Paris, Université PSL, CNRS, France
| | - Mathias Fink
- Institut Langevin, ESPCI Paris, Université PSL, CNRS, France
| | - Patrick Tabeling
- Microfluidique, MEMS et Nanostructures, Institut Pierre Gilles de Gennes, ESPCI Paris, Université PSL, CNRS, France
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11
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Delaney LJ, Isguven S, Eisenbrey JR, Hickok NJ, Forsberg F. Making waves: how ultrasound-targeted drug delivery is changing pharmaceutical approaches. MATERIALS ADVANCES 2022; 3:3023-3040. [PMID: 35445198 PMCID: PMC8978185 DOI: 10.1039/d1ma01197a] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 02/23/2022] [Indexed: 05/06/2023]
Abstract
Administration of drugs through oral and intravenous routes is a mainstay of modern medicine, but this approach suffers from limitations associated with off-target side effects and narrow therapeutic windows. It is often apparent that a controlled delivery of drugs, either localized to a specific site or during a specific time, can increase efficacy and bypass problems with systemic toxicity and insufficient local availability. To overcome some of these issues, local delivery systems have been devised, but most are still restricted in terms of elution kinetics, duration, and temporal control. Ultrasound-targeted drug delivery offers a powerful approach to increase delivery, therapeutic efficacy, and temporal release of drugs ranging from chemotherapeutics to antibiotics. The use of ultrasound can focus on increasing tissue sensitivity to the drug or actually be a critical component of the drug delivery. The high spatial and temporal resolution of ultrasound enables precise location, targeting, and timing of drug delivery and tissue sensitization. Thus, this noninvasive, non-ionizing, and relatively inexpensive modality makes the implementation of ultrasound-mediated drug delivery a powerful method that can be readily translated into the clinical arena. This review covers key concepts and areas applied in the design of different ultrasound-mediated drug delivery systems across a variety of clinical applications.
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Affiliation(s)
- Lauren J Delaney
- Department of Radiology, Thomas Jefferson University 132 S. 10th Street, Main 763 Philadelphia PA 19107 USA +1 (215) 955-4870
| | - Selin Isguven
- Department of Radiology, Thomas Jefferson University 132 S. 10th Street, Main 763 Philadelphia PA 19107 USA +1 (215) 955-4870
- Department of Orthopaedic Surgery, Thomas Jefferson University, 1015 Walnut Street Philadelphia PA 19107 USA
| | - John R Eisenbrey
- Department of Radiology, Thomas Jefferson University 132 S. 10th Street, Main 763 Philadelphia PA 19107 USA +1 (215) 955-4870
| | - Noreen J Hickok
- Department of Orthopaedic Surgery, Thomas Jefferson University, 1015 Walnut Street Philadelphia PA 19107 USA
| | - Flemming Forsberg
- Department of Radiology, Thomas Jefferson University 132 S. 10th Street, Main 763 Philadelphia PA 19107 USA +1 (215) 955-4870
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12
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Lin C, Chen YZ, Wu B, Yang MT, Liu CQ, Zhao Y. Advances and prospects of ultrasound targeted drug delivery systems using biomaterial-modified micro/nanobubbles for tumor therapy. Curr Med Chem 2022; 29:5062-5075. [PMID: 35362371 DOI: 10.2174/0929867329666220331110315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 01/18/2022] [Accepted: 02/01/2022] [Indexed: 11/22/2022]
Abstract
The incidence of malignant tumors is rising rapidly and tends to be in the younger, which has been one of the most important factors endangering the safety of human life. Ultrasound micro/nanobubbles, as a noninvasive and highly specific antitumor strategy, can reach and destroy tumor tissue through their effects of cavitation and acoustic perforation under the guidance of ultrasound. Meanwhile, micro/nanobubbles are now used as a novel drug carrier, releasing drugs at a target region, especially on the prospects of biomaterial-modified micro/nanobubbles as a dual modality for drug delivery and therapeutic monitoring. and successful evaluation of the sonoporation mechanism(s), ultrasound parameters, drug type and dose will need to be addressed before translating this technology for clinical use. Therefore, this paper collects the literature on the experimental and clinical studies of ultrasound biomaterial-modified micro/nanobubbles therapy in vitro and in vivo in recent years.
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Affiliation(s)
- Chen Lin
- Medical College of China three Gorges University;Yichang; China
| | - Ye-Zi Chen
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy,China Three Gorges University; Yichang; China
| | - Bo Wu
- Medical College of China three Gorges University;Yichang; China
| | - Meng-Ting Yang
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy,China Three Gorges University; Yichang; China
| | - Chao-Qi Liu
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy,China Three Gorges University; Yichang; China
| | - Yun Zhao
- Medical College of China three Gorges University;Yichang; China
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13
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Shan H, Lin Q, Wang D, Sun X, Quan B, Chen X, Chen Z. 3D Printed Integrated Multi-Layer Microfluidic Chips for Ultra-High Volumetric Throughput Nanoliposome Preparation. Front Bioeng Biotechnol 2021; 9:773705. [PMID: 34708031 PMCID: PMC8542840 DOI: 10.3389/fbioe.2021.773705] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 09/28/2021] [Indexed: 12/12/2022] Open
Abstract
Although microfluidic approaches for liposomes preparation have been developed, fabricating microfluidic devices remains expensive and time-consuming. Also, owing to the traditional layout of microchannels, the volumetric throughput of microfluidics has been greatly limited. Herein an ultra-high volumetric throughput nanoliposome preparation method using 3D printed microfluidic chips is presented. A high-resolution projection micro stereolithography (PμSL) 3D printer is applied to produce microfluidic chips with critical dimensions of 400 µm. The microchannels of the microfluidic chip adopt a three-layer layout, achieving the total flow rate (TFR) up to 474 ml min−1, which is remarkably higher than those in the reported literature. The liposome size can be as small as 80 nm. The state of flows in microchannels and the effect of turbulence on liposome formation are explored. The experimental results demonstrate that the 3D printed integrated microfluidic chip enables ultra-high volumetric throughput nanoliposome preparation and can control size efficiently, which has great potential in targeting drug delivery systems.
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Affiliation(s)
- Han Shan
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,School of Mechanical and Electrical Engineering, Central South University, Changsha, China
| | - Qibo Lin
- School of Mechanical and Electrical Engineering, Central South University, Changsha, China
| | - Danfeng Wang
- School of Mechanical and Electrical Engineering, Central South University, Changsha, China
| | - Xin Sun
- School of Mechanical and Electrical Engineering, Central South University, Changsha, China
| | - Biao Quan
- School of Mechanical and Electrical Engineering, Central South University, Changsha, China
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Zeyu Chen
- School of Mechanical and Electrical Engineering, Central South University, Changsha, China
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14
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Wang Y, Cong H, Wang S, Yu B, Shen Y. Development and application of ultrasound contrast agents in biomedicine. J Mater Chem B 2021; 9:7633-7661. [PMID: 34586124 DOI: 10.1039/d1tb00850a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
With the rapid development of molecular imaging, ultrasound (US) medicine has evolved from traditional imaging diagnosis to integrated diagnosis and treatment at the molecular level. Ultrasound contrast agents (UCAs) play a crucial role in the integration of US diagnosis and treatment. As the micro-bubbles (MBs) in UCAs can enhance the cavitation effect and promote the biological effect of US, UCAs have also been studied in the fields of US thrombolysis, mediated gene transfer, drug delivery, and high intensity focused US. The application range of UCAs is expanding, and the value of their applications is improving. This paper reviews the development and application of UCAs in biomedicine in recent years, and the existing problems and prospects are pointed out.
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Affiliation(s)
- Yu Wang
- Institute of Biomedical Materials and Engineering, College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Affiliated Hospital of Qingdao University, Qingdao University, Building D, Science Park, Qingdao 266071, China.
| | - Hailin Cong
- Institute of Biomedical Materials and Engineering, College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Affiliated Hospital of Qingdao University, Qingdao University, Building D, Science Park, Qingdao 266071, China. .,State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China
| | - Song Wang
- Institute of Biomedical Materials and Engineering, College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Affiliated Hospital of Qingdao University, Qingdao University, Building D, Science Park, Qingdao 266071, China.
| | - Bing Yu
- Institute of Biomedical Materials and Engineering, College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Affiliated Hospital of Qingdao University, Qingdao University, Building D, Science Park, Qingdao 266071, China. .,State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China
| | - Youqing Shen
- Institute of Biomedical Materials and Engineering, College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Affiliated Hospital of Qingdao University, Qingdao University, Building D, Science Park, Qingdao 266071, China. .,Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
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15
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Gupta I, Su X, Jonnalagadda US, Das D, Pramanik M, Kwan JJ. Investigating the Acoustic Response and Contrast Enhancement of Drug-Loadable PLGA Microparticles with Various Shapes and Morphologies. ULTRASOUND IN MEDICINE & BIOLOGY 2021; 47:1844-1856. [PMID: 33810888 DOI: 10.1016/j.ultrasmedbio.2021.02.012] [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: 09/11/2020] [Revised: 01/07/2021] [Accepted: 02/16/2021] [Indexed: 06/12/2023]
Abstract
Polymer nanoparticles and microparticles have been used primarily for drug delivery. There is now growing interest in further developing polymer-based solid cavitation agents to also enhance ultrasound imaging. We previously reported on a facile method to produce hollow poly(lactic-co-glycolic acid) (PLGA) microparticles with different diameters and degrees of porosity. Here, we investigate the cavitation response from these PLGA microparticles with both therapeutic and diagnostic ultrasound transducers. Interestingly, all formulations exhibited stable cavitation; larger porous and multicavity particles also provided inertial cavitation at elevated acoustic pressure amplitudes. These larger particles also achieved contrast enhancement comparable to that of commercially available ultrasound contrast agents, with a maximum recorded contrast-to-tissue ratio of 28 dB. Therefore, we found that multicavity PLGA microparticles respond to both therapeutic and diagnostic ultrasound and may be applied as a theranostic agent.
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Affiliation(s)
- Ipshita Gupta
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459
| | - Xiaoqian Su
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459
| | - Umesh Sai Jonnalagadda
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459
| | - Dhiman Das
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459
| | - Manojit Pramanik
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459
| | - James J Kwan
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459.
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16
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Xu L, Chen Y, Jin Q, Wu Y, Deng C, Zhong Y, Lin L, Chen L, Fu W, Yi L, Sun Z, Qin X, Li Y, Yang Y, Xie M. Biomimetic PLGA Microbubbles Coated with Platelet Membranes for Early Detection of Myocardial Ischaemia-Reperfusion Injury. Mol Pharm 2021; 18:2974-2985. [PMID: 34197128 DOI: 10.1021/acs.molpharmaceut.1c00145] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Early diagnosis of myocardial ischaemia-reperfusion (MI/R) injury is important for protecting the myocardium and improving patient prognoses. Fortunately, the platelet membrane possesses the ability to target the region of MI/R injury. Therefore, we hypothesized that platelet membrane-coated particles (PMPs) could be used to detect early MI/R injury by ultrasound imaging. We designed PMPs with a porous polylactic-co-glycolic acid (PLGA) core coated with a platelet membrane shell. Red blood cell membrane-coated particles (RMPs) were fabricated as controls. Transmission electron microscopy (TEM) and fluorescence microscopy were applied to confirm the membrane coatings of the PMPs and RMPs. In vitro imaging of the PMPs and RMPs was verified. Moreover, binding experiments were designed to examine the targeting ability of the PMPs. Finally, we assessed the signal intensity of the adherent PMPs in the risk area and remote area by ultrasound imaging based on an MI/R rat model. The platelet membrane equipped the PMPs with an accurate targeting ability. Compared with RMPs, PMPs showed significantly more adhesion to human umbilical vein endothelial cells and collagen IV in vitro. Both PMPs and RMPs exhibited good enhancement ability in vitro and in vivo. Furthermore, the signal intensity of PMPs in the risk area was significantly higher than that in remote areas. These results were further validated by an immunofluorescence assay and ex vivo fluorescence imaging. In summary, ultrasound imaging with PMPs can detect early MI/R injury in a noninvasive manner.
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Affiliation(s)
- Lingling Xu
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Yihan Chen
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Qiaofeng Jin
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Ya Wu
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Cheng Deng
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Yi Zhong
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Ling Lin
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Ling Chen
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Wenpei Fu
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Luyang Yi
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Zhenxing Sun
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Xiaojuan Qin
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Yuman Li
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Yali Yang
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Mingxing Xie
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
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17
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Tsirkin S, Goldbart R, Traitel T, Kost J. Tailor-Made Single-Core PLGA Microbubbles as Acoustic Cavitation Enhancers for Therapeutic Applications. ACS APPLIED MATERIALS & INTERFACES 2021; 13:25748-25758. [PMID: 34048218 DOI: 10.1021/acsami.1c04770] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Microbubbles (MBs), being gas bubbles encapsulated inside a solid shell, have been investigated extensively in the field of therapeutic ultrasound as acoustic cavitation enhancers. Hard-shell MBs have an advantage over soft-shell MBs due to their improved stability. Poly(lactic-co-glycolic acid) (PLGA) is one of the most attractive polymers for hard-shell MB synthesis; however, very little is known regarding the effect of synthesis parameters on the acoustic cavitation activity of PLGA MBs and the tunability of this activity. In this study, by manipulating the synthesis parameters, we were able to control the characteristics of the MBs, such as their internal structure, gas core, size distribution, and shell thickness, which significantly affect the total acoustic cavitation activity that they exhibit (i.e., their cavitation dose). We showed that single-core MBs filled with C3F8 gas can produce cavitation effects for extended periods under continuous circulation. These MBs exhibited high stability, and their cavitation activity was not affected by prior circulation in the system. Preliminary in vivo results demonstrated that intravenously injected MBs did not cause adverse effects and produced cavitation activity that increased the permeability of the pig blood-brain barrier. Although more tests should be performed to evaluate the MB long-term safety and activity in vivo, these encouraging results suggest that our PLGA MBs have potential for future therapeutic applications as cavitation enhancers.
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Affiliation(s)
- Shani Tsirkin
- Department of Chemical Engineering, Ben-Gurion University of the Negev, 8410501 Beer Sheva, Israel
| | - Riki Goldbart
- Department of Chemical Engineering, Ben-Gurion University of the Negev, 8410501 Beer Sheva, Israel
| | - Tamar Traitel
- Department of Chemical Engineering, Ben-Gurion University of the Negev, 8410501 Beer Sheva, Israel
| | - Joseph Kost
- Department of Chemical Engineering, Ben-Gurion University of the Negev, 8410501 Beer Sheva, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, 8410501 Beer Sheva, Israel
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18
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Chen X, Zhang Y, Zhang H, Zhang L, Liu L, Cao Y, Ran H, Tian J. A non-invasive nanoparticles for multimodal imaging of ischemic myocardium in rats. J Nanobiotechnology 2021; 19:82. [PMID: 33752679 PMCID: PMC7986298 DOI: 10.1186/s12951-021-00822-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 03/05/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Ischemic heart disease (IHD) is the leading cause of morbidity and mortality worldwide, and imposes a serious economic load. Thus, it is crucial to perform a timely and accurate diagnosis and monitoring in the early stage of myocardial ischemia. Currently, nanoparticles (NPs) have emerged as promising tools for multimodal imaging, because of their advantages of non-invasion, high-safety, and real-time dynamic imaging, providing valuable information for the diagnosis of heart diseases. RESULTS In this study, we prepared a targeted nanoprobe (termed IMTP-Fe3O4-PFH NPs) with enhanced ultrasound (US), photoacoustic (PA), and magnetic resonance (MR) performance for direct and non-invasive visual imaging of ischemic myocardium in a rat model. This successfully designed nanoprobe had excellent properties such as nanoscale size, good stability, phase transformation by acoustic droplet vaporization (ADV), and favorable safety profile. Besides, it realized obvious targeting performance toward hypoxia-injured cells as well as model rat hearts. After injection of NPs through the tail vein of model rats, in vivo imaging results showed a significantly enhanced US/PA/MR signal, well indicating the remarkable feasibility of nanoprobe to distinguish the ischemic myocardium. CONCLUSIONS IMTP-Fe3O4-PFH NPs may be a promising nanoplatform for early detection of ischemic myocardium and targeted treatment under visualization for the future.
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Affiliation(s)
- Xiajing Chen
- Department of Cardiology, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, 400014, People's Republic of China
| | - Yanan Zhang
- Department of Cardiology, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, 400014, People's Republic of China
| | - Hui Zhang
- Department of Cardiology, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, 400014, People's Republic of China
| | - Liang Zhang
- Chongqing Key Laboratory of Ultrasound Molecular Imaging & Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China
| | - Lingjuan Liu
- Department of Cardiology, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, 400014, People's Republic of China
| | - Yang Cao
- Chongqing Key Laboratory of Ultrasound Molecular Imaging & Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China
| | - Haitao Ran
- Chongqing Key Laboratory of Ultrasound Molecular Imaging & Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People's Republic of China
| | - Jie Tian
- Department of Cardiology, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, People's Republic of China.
- Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, 400014, People's Republic of China.
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19
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Chabouh G, Dollet B, Quilliet C, Coupier G. Spherical oscillations of encapsulated microbubbles: Effect of shell compressibility and anisotropy. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2021; 149:1240. [PMID: 33639825 DOI: 10.1121/10.0003500] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
We introduce a model that describes spherical oscillations of encapsulated microbubbles in an unbounded surrounding fluid. A Rayleigh-Plesset-like equation is derived by coupling the Navier-Stokes equation that describes fluid dynamics with the Navier equation that describes solid dynamics via the internal/external boundary conditions. While previous models were restricted to incompressible isotropic shells, the solid shell is modeled here as a compressible viscoelastic isotropic material and then generalized to an anisotropic material. The exact value of the resonance frequency is calculated analytically, and the damping constant is computed in the approximation of weak damping. A correction of the widely used Church model for incompressible shells is evidenced, and the effects of shell compressibility and anisotropy are discussed.
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Affiliation(s)
- Georges Chabouh
- Université Grenoble Alpes, CNRS, LIPhy, F-38000 Grenoble, France
| | - Benjamin Dollet
- Université Grenoble Alpes, CNRS, LIPhy, F-38000 Grenoble, France
| | | | - Gwennou Coupier
- Université Grenoble Alpes, CNRS, LIPhy, F-38000 Grenoble, France
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20
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Khan AH, Dalvi SV. Kinetics of albumin microbubble dissolution in aqueous media. SOFT MATTER 2020; 16:2149-2163. [PMID: 32016261 DOI: 10.1039/c9sm01516g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The effectiveness of microbubbles as ultrasound contrast agents and targeted drug delivery vehicles depends on their persistence in blood. It is therefore necessary to understand the dissolution behavior of microbubbles in an aqueous medium. While there are several reports available in the literature on the dissolution of lipid microbubbles, there are no reports available on the dissolution kinetics of protein microbubbles. Moreover, shell parameters such as interfacial tension, shell resistance and shell elasticity/stiffness which characterize microbubble shells, have been reported for lipid shells but no such data are available for protein shells. Accordingly, this work was focused on capturing the dissolution behavior of protein microbubbles and estimation of shell parameters such as surface tension, shell resistance and shell elasticity. Bovine serum albumin (BSA) was used as a model protein and microbubbles were synthesized using sonication. During dissolution, a large portion of the protein shell was found to disengage from the gas-liquid interface after a stagnant dissolution phase, leading to a sudden disappearance of the microbubbles due to complete dissolution. In order to estimate shell parameters, microbubble dissolution kinetic data (radius vs. time) was fit numerically to a mass transfer model describing a microbubble dissolution process. Analysis of the results shows that the interfacial tension increases drastically and the shell resistance reduces significantly, as protein molecules leave the gas-liquid interface. Furthermore, the effect of processing conditions such as preheating temperature, microbubble size, and core gas and shell composition on the protein shell parameters was also evaluated.
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Affiliation(s)
- Aaqib H Khan
- Chemical Engineering, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar 382355, Gujarat, India.
| | - Sameer V Dalvi
- Chemical Engineering, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar 382355, Gujarat, India.
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21
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Wang Q, Xue C, zhao H, Qin Y, Zhang X, Li Y. The fabrication of protein microbubbles with diverse gas core and the novel exploration on the role of interface introduction in protein crystallization. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124471] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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22
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Zhu J, Wang Z, Xu X, Xu M, Yang X, Zhang C, Liu J, Zhang F, Shuai X, Wang W, Cao Z. Polydopamine-Encapsulated Perfluorocarbon for Ultrasound Contrast Imaging and Photothermal Therapy. Mol Pharm 2020; 17:817-826. [PMID: 31910019 DOI: 10.1021/acs.molpharmaceut.9b01070] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jinjin Zhu
- School of Biomedical Engineering, Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, Sun Yat-sen University, No.132, East Waihuan Road, Guangzhou Higher Education Mega Center, Guangzhou 510006, China
| | - Zhu Wang
- Department of Medical Ultrasound, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan Road 2, Guangzhou 510080, China
| | - Xiaolin Xu
- Department of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No. 107 Yanjiang Road West, Guangzhou 510120, China
| | - Ming Xu
- Department of Medical Ultrasound, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan Road 2, Guangzhou 510080, China
| | - Xi Yang
- School of Biomedical Engineering, Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, Sun Yat-sen University, No.132, East Waihuan Road, Guangzhou Higher Education Mega Center, Guangzhou 510006, China
| | - Chunyang Zhang
- Department of Medical Ultrasound, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan Road 2, Guangzhou 510080, China
| | - Jie Liu
- School of Biomedical Engineering, Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, Sun Yat-sen University, No.132, East Waihuan Road, Guangzhou Higher Education Mega Center, Guangzhou 510006, China
| | - Fan Zhang
- School of Biomedical Engineering, Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, Sun Yat-sen University, No.132, East Waihuan Road, Guangzhou Higher Education Mega Center, Guangzhou 510006, China
| | - Xintao Shuai
- PCFM Lab of Ministry of Education, School of Chemistry and Chemical Engineering, Sun Yat-sen University, No. 135 West Xingang Road, Guangzhou 510275, China
| | - Wei Wang
- Department of Medical Ultrasound, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan Road 2, Guangzhou 510080, China
| | - Zhong Cao
- School of Biomedical Engineering, Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, Sun Yat-sen University, No.132, East Waihuan Road, Guangzhou Higher Education Mega Center, Guangzhou 510006, China
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Hameed S, Zhang M, Bhattarai P, Mustafa G, Dai Z. Enhancing cancer therapeutic efficacy through ultrasound‐mediated micro‐to‐nano conversion. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2019; 12:e1604. [DOI: 10.1002/wnan.1604] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/15/2019] [Accepted: 11/04/2019] [Indexed: 12/18/2022]
Affiliation(s)
- Sadaf Hameed
- Department of Biomedical Engineering, College of Engineering Peking University Beijing China
| | - Miaomiao Zhang
- Department of Biomedical Engineering, College of Engineering Peking University Beijing China
| | - Pravin Bhattarai
- Department of Biomedical Engineering, College of Engineering Peking University Beijing China
- Phutung Research Institute Kathmandu Nepal
| | - Ghulam Mustafa
- Department of Sciences Bahria University Lahore Lahore Pakistan
| | - Zhifei Dai
- Department of Biomedical Engineering, College of Engineering Peking University Beijing China
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24
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Zhu Z, Huang F, Yang C, Si T, Xu RX. On-Demand Generation of Double Emulsions Based on Interface Shearing for Controlled Ultrasound Activation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:40932-40943. [PMID: 31589392 DOI: 10.1021/acsami.9b15182] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Stimuli-responsive microcarriers (SRMs) based on multiple emulsions can be widely used in advanced drug delivery, tissue engineering, biosensing, and cell biology. Here a simple and effective compound interface shearing (CIS) method is proposed to one-step produce SRMs for controlled ultrasound (US) activation. In the CIS process, a coaxial needle supplying the core and shell liquids vibrates periodically across a free gas-liquid surface, resulting in the pinch-off of a compound liquid neck for on-demand generation of multiple emulsions. The CIS process is free of confined walls with a pure interface shearing mechanism. Perfectly uniform SRMs with tunable core-shell volume ratios can be produced, following a scaling law of their size as a function of the liquid flow rates and the vibration frequency. US- and magnetic-responsive microcapsules are prepared for magnetic-guided site-targeting delivery, and acid-aided sequential US activation realizes the synergistic delivery of hydrophilic and hydrophobic payloads. It can be concluded that the CIS technique is able to generate multifunctional SRMs at low cost, high uniformity, high flexibility, and effective process control for various fields of potential applications.
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Affiliation(s)
| | | | | | | | - Ronald X Xu
- Department of Biomedical Engineering , The Ohio State University , Columbus , Ohio 43210 , United States
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25
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Drug-Loaded Microbubbles Combined with Ultrasound for Thrombolysis and Malignant Tumor Therapy. BIOMED RESEARCH INTERNATIONAL 2019; 2019:6792465. [PMID: 31662987 PMCID: PMC6791276 DOI: 10.1155/2019/6792465] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 07/22/2019] [Accepted: 09/14/2019] [Indexed: 12/14/2022]
Abstract
Cardiac-cerebral thrombosis and malignant tumor endanger the safety of human life seriously. Traditional chemotherapy drugs have side effects which restrict their applications. Drug-loaded microbubbles can be destroyed by ultrasound irradiation at the focus position and be used for thrombolysis and tumor therapy. Compared with traditional drug treatment, the drug-loaded microbubbles can be excited by ultrasound and release drugs to lesion sites, increasing the local drug concentration and the exposure dose to nonfocal regions, thus reducing the cytotoxicity and side effects of drugs. This article reviews the applications of drug-loaded microbubbles combined with ultrasound for thrombolysis and tumor therapy. We focus on highlighting the advantages of using this new technique for disease treatment and concluding with recommendations for future efforts on the applications of this technology.
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26
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Chen Z, Pulsipher KW, Chattaraj R, Hammer DA, Sehgal CM, Lee D. Engineering the Echogenic Properties of Microfluidic Microbubbles Using Mixtures of Recombinant Protein and Amphiphilic Copolymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:10079-10086. [PMID: 30768278 PMCID: PMC6698903 DOI: 10.1021/acs.langmuir.8b03882] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Microbubbles are used as ultrasound contrast agents in medical diagnosis and also have shown great promise in ultrasound-mediated therapy. However, short lifetime and broad size distribution of microbubbles limit their applications in therapy and imaging. Moreover, it is challenging to tailor the echogenic response of microbubbles to make them suitable for specific applications. To overcome these challenges, we use microfluidic flow-focusing to prepare monodisperse microbubbles with a mixture of a recombinant amphiphilic protein, oleosin, and a synthetic amphiphilic copolymer, Pluronic. We show that these microbubbles have superior uniformity and stability under ultrasonic stimulation compared to commercial agents. We also demonstrate that by using different Pluronics, the echogenic response of the microbubbles can be tailored. Our work shows the versatility of using the combination of microfluidics and protein/copolymer mixtures as a method of engineering microbubbles. This tunability could potentially be important and powerful in producing microbubble agents for theranostic applications.
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Affiliation(s)
- Zhuo Chen
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Katherine W. Pulsipher
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Rajarshi Chattaraj
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Department of Radiology, University of Pennsylvania Medical Center, Philadelphia, Pennsylvania 19104, United States
| | - Daniel A. Hammer
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Chandra M. Sehgal
- Department of Radiology, University of Pennsylvania Medical Center, Philadelphia, Pennsylvania 19104, United States
| | - Daeyeon Lee
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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27
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Abenojar EC, Nittayacharn P, de Leon AC, Perera R, Wang Y, Bederman I, Exner AA. Effect of Bubble Concentration on the in Vitro and in Vivo Performance of Highly Stable Lipid Shell-Stabilized Micro- and Nanoscale Ultrasound Contrast Agents. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:10192-10202. [PMID: 30913884 DOI: 10.1021/acs.langmuir.9b00462] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Ultrasound (US) is a widely used diagnostic imaging tool because it is inexpensive, safe, portable, and broadly accessible. Ultrasound contrast agents (UCAs) are employed to enhance backscatter echo and improve imaging contrast. The most frequently utilized UCAs are echogenic bubbles made with a phospholipid or protein-stabilized hydrophobic gas core. While clinically utilized, applications of UCAs are often limited by rapid signal decay (<5 min) in vivo under typical ultrasound imaging protocols. Here, we report on a formulation of lipid shell-stabilized perfluoropropane (C3F8) microbubbles and nanobubbles with a significantly prolonged in vivo stability. Microbubbles (875 ± 280 nm) of the target size were prepared by utilizing a multiple-step centrifugation cycle, while nanobubbles (299 ± 189 nm) were isolated from the activated vial using a single centrifugation step. To provide in-depth acoustic characterization of the new construct we evaluated the effect of size and concentration on their in vitro and in vivo performance. In vitro and in vivo characterization were carried out for a range of bubble concentrations normalized by total gas volume quantified via headspace gas chromatography/mass spectrometry (GC/MS). In vitro characterization revealed that nanobubbles at different concentrations are more consistently stable over time with the highest and lowest dilutions (50-fold decrease) only differing in US signal after 8 min exposure by 10.34%, while for microbubbles the difference was 86.46%. As expected, due to the difference in hydrodynamic diameter and scattering cross section difference, nanobubbles showed lower overall initial signal intensity. In vivo experiments showed that both microbubbles and nanobubbles with similar initial peak signal intensity are comparably stable over time with 66.8% and 60.6% remaining signal after 30 min, respectively. This study demonstrates that bubble concentration has significant effects on the persistence of both microbubbles and nanobubbles in vitro and in vivo, but the effects are more pronounced in larger bubbles. These effects should be taken into account when selecting the appropriate bubble parameters for future imaging applications.
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Affiliation(s)
- Eric C Abenojar
- Department of Radiology , Case Western Reserve University , 10900 Euclid Avenue , Cleveland , Ohio 44106 , United States
| | - Pinunta Nittayacharn
- Department of Biomedical Engineering , Case Western Reserve University , 10900 Euclid Avenue , Cleveland , Ohio 44106 , United States
| | - Al Christopher de Leon
- Department of Radiology , Case Western Reserve University , 10900 Euclid Avenue , Cleveland , Ohio 44106 , United States
| | - Reshani Perera
- Department of Radiology , Case Western Reserve University , 10900 Euclid Avenue , Cleveland , Ohio 44106 , United States
| | - Yu Wang
- Department of Radiology , Case Western Reserve University , 10900 Euclid Avenue , Cleveland , Ohio 44106 , United States
| | - Ilya Bederman
- Department of Pediatrics, School of Medicine , Case Western Reserve University , 10900 Euclid Avenue , Cleveland , Ohio 44106 , United States
| | - Agata A Exner
- Department of Radiology , Case Western Reserve University , 10900 Euclid Avenue , Cleveland , Ohio 44106 , United States
- Department of Biomedical Engineering , Case Western Reserve University , 10900 Euclid Avenue , Cleveland , Ohio 44106 , United States
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28
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Song R, Peng S, Lin Q, Luo M, Chung HY, Zhang Y, Yao S. pH-Responsive Oxygen Nanobubbles for Spontaneous Oxygen Delivery in Hypoxic Tumors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:10166-10172. [PMID: 30698448 DOI: 10.1021/acs.langmuir.8b03650] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Tumor hypoxia is a significant factor leading to the resistance of tumors to treatment, especially for photodynamic therapy and radiotherapy where oxygen is needed to kill cancer cells. Oxygen delivery agents such as oxygen-saturated perfluorocarbon nanoemulsions and lipid oxygen microbubbles have been employed to supply oxygen to hypoxic tumors with ultrasound activation. Such oxygen delivery systems are still associated with several drawbacks, including premature oxygen release and the dependence of external stimuli. To address these limitations, we developed oxygen nanobubbles that were enclosed by the acetalated dextran polymer shells for spontaneous oxygeneration in response to a minor pH drop in the tumor microenvironment. The acetalated dextran polymer shell serves as a robust barrier against gas dissolution in the circulating blood to retain the majority of the oxygen payload, and its pH-responsive property enables an abrupt burst release of oxygen in the mild acidic tumor microenvironment. The acetalated dextran oxygen nanobubbles exhibited excellent stability and biocompatibility. In vitro and in vivo experiments were conducted to investigate the pH-responsive oxygen release. The external stimuli-free supply of oxygen by the acetalated dextran oxygen nanobubbles was evaluated on CNE2 tumor-bearing mice, and the intratumoral oxygen level increased by 6-fold after the administration of the oxygen nanobubbles, manifesting that our pH-responsive oxygen nanobubbles hold great potential as a potent oxygen delivery agent to overcome the hypoxia-induced resistance.
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29
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Fu JW, Lin YS, Gan SL, Li YR, Wang Y, Feng ST, Li H, Zhou GF. Multifunctionalized Microscale Ultrasound Contrast Agents for Precise Theranostics of Malignant Tumors. CONTRAST MEDIA & MOLECULAR IMAGING 2019; 2019:3145647. [PMID: 31360144 PMCID: PMC6642784 DOI: 10.1155/2019/3145647] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 04/26/2019] [Accepted: 06/10/2019] [Indexed: 11/17/2022]
Abstract
In ultrasonography, ultrasound contrast agents (UCAs) that possess high acoustic impedance mismatch with the bulk medium are frequently employed to highlight the borders between tissues by enhanced ultrasound scattering in a clinic. Typically, the most common UCA, microbubble, is generally close in size to a red blood cell (<∼10 μm). These microscale UCAs cannot be directly entrapped into the target cells but generate several orders of magnitude stronger echo signals than the nanoscale ones. And their large containment and high ultrasound responsiveness also greatly facilitate to perform combined treatments, e.g., drug delivery and other imaging techniques. So multifunctionalized microscale UCAs appear on this scene and keep growing toward a promising direction for precise theranostics. In this review, we systematically summarize the new advances in the principles and preparations of multifunctionalized microscale UCAs and their medical applications for malignant tumors.
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Affiliation(s)
- Jia-Wei Fu
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
- National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Yi-Sheng Lin
- Department of Radiology, The First Affiliated Hospital, Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong 510405, China
| | - Sheng-Long Gan
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
- National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Yong-Rui Li
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
- National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Yao Wang
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
- National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Shi-Ting Feng
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
| | - Hao Li
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
- National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Guo-Fu Zhou
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
- National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China
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30
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Gao S, Cheng X, Li J. Lipid nanobubbles as an ultrasound-triggered artesunate delivery system for imaging-guided, tumor-targeted chemotherapy. Onco Targets Ther 2019; 12:1841-1850. [PMID: 30881036 PMCID: PMC6408921 DOI: 10.2147/ott.s190208] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
PURPOSE Herein, this study is to prepare folic acid (FA)-conjugated lipid nanobubbles (NBs) that highly load artesunate (Arte; FA-ALNBs), as an ultrasound (US)-triggered Arte delivery system for imaging-guided, tumor-targeted chemotherapy. MATERIALS AND METHODS The morphology, size, zeta potential, and stability of the FA-ALNBs were detected by optical microscopy and dynamic light scattering analysis. The cellular uptake of the FA-ALNBs was evaluated by confocal laser scanning microscopy and flow cytometry. RESULTS The FA-ALNBs showed uniform spheroidal structure, with 781.2±5.3 nm in average diameter, great physiological stability, and ~91.9%±1.1% encapsulation efficiency of Arte. Using focused US, about 36.1%±2.5% of the entrapped Arte was trigger-released from the FA-ALNBs. Owing to the US contrast property, FA-ALNBs showed an enhanced US signal in vitro when using an ultrasonic diagnostic apparatus with a 1-MHz linear transducer. Due to the FA receptor-mediated endocytosis effect, FA-ALNBs can be efficiently internalized by cells, showing an uptake ratio of about 56.4%±3.1%. FA-ALNBs showed an enhanced, dose-dependent cell-killing ability, while FA-ALNBs plus US irradiation exhibited a stronger anticancer effect in vitro. Post intravenous injection into tumor-bearing mice, FA-ALNBs showed an enhanced US contrast effect with increase in time, indicating the increasing accumulation of FA-ALNBs in tumor tissue, which peaked at 4 hours post injection. Focused US irradiation was conducted on the tumor region at 4 hours post injection of FA-ALNBs, which showed a greater tumor suppression effect after 30 days of treatment compared with all other treatment groups. Moreover, FA-ALNBs showed negligible systemic toxicity in vivo. CONCLUSION This versatile US-triggered drug delivery system with great anticancer efficacy was assessed both in vitro and in vivo, revealing great potential as a cancer theranostic agent for future application.
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Affiliation(s)
- Shuang Gao
- Ultrasound Department, Guilin People's Hospital, Guilin, Guangxi 541002, China
| | - Xiaohui Cheng
- Department of Clinical Pharmacy, Daqing Oilfield General Hospital, Daqing, Heilongjiang 163000, China
| | - Jinhua Li
- Traditional Chinese Medicine Department, Gansu Provincial Hospital, Lanzhou, Gansu 730000, China,
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31
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Peng Y, Li Q, Seekell RR, Kheir JN, Porter TM, Polizzotti BD. Tunable Nonlinear Acoustic Reporters Using Micro- and Nanosized Air Bubbles with Porous Polymeric Hard Shells. ACS APPLIED MATERIALS & INTERFACES 2019; 11:7-12. [PMID: 30444111 DOI: 10.1021/acsami.8b16737] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The ability to tailor acoustic cavitation of contrast agents is pivotal for ultrasound applications in enhanced imaging, drug delivery, and cancer therapy, etc. A biopolymer-based system of microbubbles and nanobubbles was developed as acoustic reporters that consist of extremely porous hard shells. Despite the existence of an incompressible shell, these porous contrast agents exhibited strong nonlinear acoustic response under very low acoustic pressure, e.g, harmonics, characteristic of free gas bubbles. The large air/water surface area within the transmural capillaries are believed to facilitate oscillation of the inner gas core. Furthermore, the acoustic cavitation can be tailored by variation in polymer structures. This synthetically based platform offers insight for the rational design of advanced acoustic biomaterials.
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Affiliation(s)
- Yifeng Peng
- Department of Cardiology , Boston Children's Hospital , Boston , Massachusetts 02115 , United States
- Department of Pediatrics , Harvard Medical School , Boston , Massachussets 02115 , United States
| | - Qian Li
- Department of Biomedical Engineering , Boston University , Boston , Massachusetts 02215 , United States
| | - Raymond R Seekell
- Department of Cardiology , Boston Children's Hospital , Boston , Massachusetts 02115 , United States
- Department of Pediatrics , Harvard Medical School , Boston , Massachussets 02115 , United States
| | - John N Kheir
- Department of Cardiology , Boston Children's Hospital , Boston , Massachusetts 02115 , United States
- Department of Pediatrics , Harvard Medical School , Boston , Massachussets 02115 , United States
| | - Tyrone M Porter
- Department of Biomedical Engineering , Boston University , Boston , Massachusetts 02215 , United States
| | - Brian D Polizzotti
- Department of Cardiology , Boston Children's Hospital , Boston , Massachusetts 02115 , United States
- Department of Pediatrics , Harvard Medical School , Boston , Massachussets 02115 , United States
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32
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Song R, Hu D, Chung HY, Sheng Z, Yao S. Lipid-Polymer Bilaminar Oxygen Nanobubbles for Enhanced Photodynamic Therapy of Cancer. ACS APPLIED MATERIALS & INTERFACES 2018; 10:36805-36813. [PMID: 30300545 DOI: 10.1021/acsami.8b15293] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hypoxia in solid tumors may be a hindrance to effective treatments of tumors in achieving their therapeutic potential, especially for photodynamic therapy (PDT) which requires oxygen as the supplement substrate. Oxygen delivery using perfluorocarbon emulsions or lipid oxygen microbubbles has been developed as the agents to supply endogenous oxygen to fuel singlet oxygen generation in PDT. However, such methods suffer from premature oxygen release and storage issues. To address these limitations, we designed lipid-polymer bilaminar oxygen nanobubbles with chlorin e6 (Ce6) conjugated to the polymer shell as a novel oxygen self-supplement agent for PDT. The resultant nanobubbles possessed excellent stability to reduce the risk of premature oxygen release and were stored as freeze-dried powders to avoid shelf storage issues. In vitro and in vivo experimental results demonstrated that the nanobubbles exhibited much higher cellular uptake rates and tumor targeting efficiency compared to free Ce6. Using the oxygen nanobubbles for PDT, a significant enhancement of therapeutic efficacy and survival rates was achieved on a C6 glioma-bearing mice model with no noticeable side effects, owing to the greatly enhanced singlet oxygen generation powered by oxygen encapsulated nanobubbles.
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Affiliation(s)
- Ruyuan Song
- Bioengineering Graduate Program, Department of Chemical and Biological Engineering , The Hong Kong University of Science and Technology , Hong Kong , China
| | - Dehong Hu
- Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology , Chinese Academy of Sciences , Shenzhen 518055 , China
| | - Ho Yin Chung
- Department of Mechanical and Aerospace Engineering , The Hong Kong University of Science and Technology , Hong Kong 999077 , China
| | - Zonghai Sheng
- Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology , Chinese Academy of Sciences , Shenzhen 518055 , China
| | - Shuhuai Yao
- Bioengineering Graduate Program, Department of Chemical and Biological Engineering , The Hong Kong University of Science and Technology , Hong Kong , China
- Department of Mechanical and Aerospace Engineering , The Hong Kong University of Science and Technology , Hong Kong 999077 , China
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