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Chapla R, Huynh KT, Schutt CE. Microbubble–Nanoparticle Complexes for Ultrasound-Enhanced Cargo Delivery. Pharmaceutics 2022; 14:pharmaceutics14112396. [PMID: 36365214 PMCID: PMC9698658 DOI: 10.3390/pharmaceutics14112396] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/05/2022] [Accepted: 10/08/2022] [Indexed: 11/09/2022] Open
Abstract
Targeted delivery of therapeutics to specific tissues is critically important for reducing systemic toxicity and optimizing therapeutic efficacy, especially in the case of cytotoxic drugs. Many strategies currently exist for targeting systemically administered drugs, and ultrasound-controlled targeting is a rapidly advancing strategy for externally-stimulated drug delivery. In this non-invasive method, ultrasound waves penetrate through tissue and stimulate gas-filled microbubbles, resulting in bubble rupture and biophysical effects that power delivery of attached cargo to surrounding cells. Drug delivery capabilities from ultrasound-sensitive microbubbles are greatly expanded when nanocarrier particles are attached to the bubble surface, and cargo loading is determined by the physicochemical properties of the nanoparticles. This review serves to highlight and discuss current microbubble–nanoparticle complex component materials and designs for ultrasound-mediated drug delivery. Nanocarriers that have been complexed with microbubbles for drug delivery include lipid-based, polymeric, lipid–polymer hybrid, protein, and inorganic nanoparticles. Several schemes exist for linking nanoparticles to microbubbles for efficient nanoparticle delivery, including biotin–avidin bridging, electrostatic bonding, and covalent linkages. When compared to unstimulated delivery, ultrasound-mediated cargo delivery enables enhanced cell uptake and accumulation of cargo in target organs and can result in improved therapeutic outcomes. These ultrasound-responsive delivery complexes can also be designed to facilitate other methods of targeting, including bioactive targeting ligands and responsivity to light or magnetic fields, and multi-level targeting can enhance therapeutic efficacy. Microbubble–nanoparticle complexes present a versatile platform for controlled drug delivery via ultrasound, allowing for enhanced tissue penetration and minimally invasive therapy. Future perspectives for application of this platform are also discussed in this review.
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Affiliation(s)
- Rachel Chapla
- Cancer Early Detection Advanced Research Center, Oregon Health and Science University, Portland, OR 97201, USA
| | - Katherine T. Huynh
- Cancer Early Detection Advanced Research Center, Oregon Health and Science University, Portland, OR 97201, USA
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR 97239, USA
| | - Carolyn E. Schutt
- Cancer Early Detection Advanced Research Center, Oregon Health and Science University, Portland, OR 97201, USA
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR 97239, USA
- Correspondence:
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2
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Vince O, Peeters S, Johanssen VA, Gray M, Smart S, Sibson NR, Stride E. Microbubbles Containing Lysolipid Enhance Ultrasound-Mediated Blood-Brain Barrier Breakdown In Vivo. Adv Healthc Mater 2021; 10:e2001343. [PMID: 33191662 DOI: 10.1002/adhm.202001343] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/09/2020] [Indexed: 12/13/2022]
Abstract
Ultrasound and microbubbles (MBs) offer a noninvasive method of temporarily enhancing blood-brain barrier (BBB) permeability to therapeutics. To reduce off-target effects, it is desirable to minimize the ultrasound pressures required. It has been shown that a new formulation of MBs containing lysolipids (Lyso-MBs) can increase the cellular uptake of a model drug in vitro. The aim of this study is to investigate whether Lyso-MBs can also enhance BBB permeability in vivo. Female BALB/c mice are injected with either Lyso-MBs or control MBs and gadolinium-DTPA (Gd-DTPA) and exposed to ultrasound (500 kHz, 1 Hz pulse repetition frequency, 1 ms pulse length, peak-negative pressures 160-480 kPa) for 2 min. BBB permeabilization is measured via magnetic resonance imaging (7.0 T) of Gd-DTPA extravasation and subsequent histological examination of brain tissue to assess serum immunoglobulin G (IgG) extravasation (n = 8 per group). An approximately twofold enhancement in BBB permeability is produced by the Lyso-MBs at the highest ultrasound pressure compared with the control. These findings indicate that modifying the composition of phospholipid-shelled MBs has the potential to improve the efficiency of BBB opening, without increasing the ultrasound pressure amplitude required. This is particularly relevant for delivery of therapeutics deep within the brain.
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Affiliation(s)
- Oliver Vince
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, OX3 7DQ, UK
| | - Sarah Peeters
- Medical Research Council Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, OX3 7DQ, UK
| | - Vanessa A Johanssen
- Medical Research Council Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, OX3 7DQ, UK
| | - Michael Gray
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, OX3 7DQ, UK
| | - Sean Smart
- Medical Research Council Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, OX3 7DQ, UK
| | - Nicola R Sibson
- Medical Research Council Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, OX3 7DQ, UK
| | - Eleanor Stride
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, OX3 7DQ, UK
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Ma L, Jiang F, Fan X, Wang L, He C, Zhou M, Li S, Luo H, Cheng C, Qiu L. Metal-Organic-Framework-Engineered Enzyme-Mimetic Catalysts. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2003065. [PMID: 33124725 DOI: 10.1002/adma.202003065] [Citation(s) in RCA: 115] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/26/2020] [Indexed: 02/05/2023]
Abstract
Nanomaterial-based enzyme-mimetic catalysts (Enz-Cats) have received considerable attention because of their optimized and enhanced catalytic performances and selectivities in diverse physiological environments compared with natural enzymes. Recently, owing to their molecular/atomic-level catalytic centers, high porosity, large surface area, high loading capacity, and homogeneous structure, metal-organic frameworks (MOFs) have emerged as one of the most promising materials in engineering Enz-Cats. Here, the recent advances in the design of MOF-engineered Enz-Cats, including their preparation methods, composite constructions, structural characterizations, and biomedical applications, are highlighted and commented upon. In particular, the performance, selectivities, essential mechanisms, and potential structure-property relations of these MOF-engineered Enz-Cats in accelerating catalytic reactions are discussed. Some potential biomedical applications of these MOF-engineered Enz-Cats are also breifly proposed. These applications include, for example, tumor therapies, bacterial disinfection, tissue regeneration, and biosensors. Finally, the future opportunities and challenges in emerging research frontiers are thoroughly discussed. Thereby, potential pathways and perspectives for designing future state-of-the-art Enz-Cats in biomedical sciences are offered.
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Affiliation(s)
- Lang Ma
- Department of Ultrasound, West China Hospital, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Fuben Jiang
- Department of Ultrasound, West China Hospital, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Xin Fan
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Takustraße 3, Berlin, 14195, Germany
| | - Liyun Wang
- Department of Ultrasound, West China Hospital, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Chao He
- Department of Ultrasound, West China Hospital, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Mi Zhou
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Shuang Li
- Functional Materials, Department of Chemistry, Technische Universität Berlin, Hardenbergstraße 40, Berlin, 10623, Germany
| | - Hongrong Luo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Chong Cheng
- Department of Ultrasound, West China Hospital, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Takustraße 3, Berlin, 14195, Germany
| | - Li Qiu
- Department of Ultrasound, West China Hospital, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
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Sharma H, Mondal S. Functionalized Graphene Oxide for Chemotherapeutic Drug Delivery and Cancer Treatment: A Promising Material in Nanomedicine. Int J Mol Sci 2020; 21:E6280. [PMID: 32872646 PMCID: PMC7504176 DOI: 10.3390/ijms21176280] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/24/2020] [Accepted: 08/27/2020] [Indexed: 02/07/2023] Open
Abstract
The usage of nanomaterials for cancer treatment has been a popular research focus over the past decade. Nanomaterials, including polymeric nanomaterials, metal nanoparticles, semiconductor quantum dots, and carbon-based nanomaterials such as graphene oxide (GO), have been used for cancer cell imaging, chemotherapeutic drug targeting, chemotherapy, photothermal therapy, and photodynamic therapy. In this review, we discuss the concept of targeted nanoparticles in cancer therapy and summarize the in vivo biocompatibility of graphene-based nanomaterials. Specifically, we discuss in detail the chemistry and properties of GO and provide a comprehensive review of functionalized GO and GO-metal nanoparticle composites in nanomedicine involving anticancer drug delivery and cancer treatment.
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Affiliation(s)
- Horrick Sharma
- Department of Pharmaceutical Sciences, College of Pharmacy, Southwestern Oklahoma State University, Weatherford, OK 73096, USA;
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Chu X, Tang J, Geng Z, Wang X, Huo G, Zhou L, Wang J, Yuan K, Yang X, Hu J, Yang F, Zhou X, Zhang L. Mechanical Properties of Sub-Microbubbles with a Nanoparticle-Decorated Polymer Shell. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:17090-17095. [PMID: 31804082 DOI: 10.1021/acs.langmuir.9b02930] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Nanoparticle-decorated polymer-coated sub-microbubbles (NP-P-coated SMBs), as proved, have shown promising application prospects in ultrasound imaging, magnetic resonance imaging, drug delivery, and so forth. However, the quantitative evaluation of the stability and mechanical properties of single NP-P-coated SMB is absent. Here, we first reported the stiffness and Young's modulus of single NP-P-coated SMB obtained by the PeakForce mode of atomic force microscopy. Such NP-P-coated SMBs could maintain perfect spherical shapes and have a thinner shell thickness (about 10 nm), as determined by characterization using a transmission electron microscope. Young's modulus of NP-P-coated SMBs is about 4.6 ± 1.2 GPa, and their stiffness is about 15.0 ± 3.1 N/m. Both modulus and stiffness are obtained from the linear region in the force-deformation curve and are nearly independent of their sizes. These results should be very useful to evaluate their stability, which plays a key role in maintaining the shell drug loading and acoustic capabilities.
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Affiliation(s)
- Xinxing Chu
- Ningbo University , Ningbo 315211 , China
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute , Chinese Academy of Sciences , Shanghai 201204 , China
| | - Jian Tang
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering , Southeast University , Nanjing 210096 , P. R. China
| | - Zhanli Geng
- University of Chinese Academy of Sciences , Beijing 100049 , China
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics , Chinese Academy of Sciences , Shanghai 201800 , China
- School of Physical Science and Technology , Shanghai Tech University , Shanghai 201210 , China
| | - Xingya Wang
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute , Chinese Academy of Sciences , Shanghai 201204 , China
| | | | - Limin Zhou
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute , Chinese Academy of Sciences , Shanghai 201204 , China
| | - Jing Wang
- University of Chinese Academy of Sciences , Beijing 100049 , China
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics , Chinese Academy of Sciences , Shanghai 201800 , China
- School of Physical Science and Technology , Shanghai Tech University , Shanghai 201210 , China
| | - Kaiwei Yuan
- University of Chinese Academy of Sciences , Beijing 100049 , China
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics , Chinese Academy of Sciences , Shanghai 201800 , China
| | - Xiaodong Yang
- University of Chinese Academy of Sciences , Beijing 100049 , China
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics , Chinese Academy of Sciences , Shanghai 201800 , China
- School of Physical Science and Technology , Shanghai Tech University , Shanghai 201210 , China
| | - Jun Hu
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute , Chinese Academy of Sciences , Shanghai 201204 , China
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics , Chinese Academy of Sciences , Shanghai 201800 , China
| | - Fang Yang
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering , Southeast University , Nanjing 210096 , P. R. China
| | | | - Lijuan Zhang
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute , Chinese Academy of Sciences , Shanghai 201204 , China
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics , Chinese Academy of Sciences , Shanghai 201800 , China
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Beguin E, Bau L, Shrivastava S, Stride E. Comparing Strategies for Magnetic Functionalization of Microbubbles. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1829-1840. [PMID: 30574777 DOI: 10.1021/acsami.8b18418] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The advancement of ultrasound-mediated therapy has stimulated the development of drug-loaded microbubble agents that can be targeted to a region of interest through an applied magnetic field prior to ultrasound activation. However, the need to incorporate therapeutic molecules while optimizing the responsiveness to both magnetic and acoustic fields and maintaining adequate stability poses a considerable challenge for microbubble synthesis. The aim of this study was to evaluate three different methods for incorporating iron oxide nanoparticles (IONPs) into phospholipid-coated microbubbles using (1) hydrophobic IONPs within an oil layer below the microbubble shell, (2) phospholipid-stabilized IONPs within the shell, or (3) hydrophilic IONPs noncovalently bound to the surface of the microbubble. All microbubbles exhibited similar acoustic response at both 1 and 7 MHz. The half-life of the microbubbles was more than doubled by the addition of IONPs by using both surface and phospholipid-mediated loading methods, provided the lipid used to coat the IONPs was the same as that constituting the microbubble shell. The highest loading of IONPs per microbubble was also achieved with the surface loading method, and these microbubbles were the most responsive to an applied magnetic field, showing a 3-fold increase in the number of retained microbubbles compared to other groups. For the purpose of drug delivery, surface loading of IONPs could restrict the attachment of hydrophilic drugs to the microbubble shell, but hydrophobic drugs could still be incorporated. In contrast, although the incorporation of phospholipid IONPs produced more weakly magnetic microbubbles, it would not interfere with hydrophilic drug loading on the surface of the microbubble.
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Affiliation(s)
- Estelle Beguin
- Department of Engineering Science, Institute of Biomedical Engineering , University of Oxford , Oxford OX3 7DQ , U.K
| | - Luca Bau
- Department of Engineering Science, Institute of Biomedical Engineering , University of Oxford , Oxford OX3 7DQ , U.K
| | - Shamit Shrivastava
- Department of Engineering Science, Institute of Biomedical Engineering , University of Oxford , Oxford OX3 7DQ , U.K
| | - Eleanor Stride
- Department of Engineering Science, Institute of Biomedical Engineering , University of Oxford , Oxford OX3 7DQ , U.K
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Ranji-Burachaloo H, Gurr PA, Dunstan DE, Qiao GG. Cancer Treatment through Nanoparticle-Facilitated Fenton Reaction. ACS NANO 2018; 12:11819-11837. [PMID: 30457834 DOI: 10.1021/acsnano.8b07635] [Citation(s) in RCA: 338] [Impact Index Per Article: 56.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Currently, cancer is the second largest cause of death worldwide and has reached critical levels. In spite of all the efforts, common treatments including chemotherapy, photodynamic therapy, and photothermal therapy suffer from various problems which limit their efficiency and performance. For this reason, different strategies are being explored which improve the efficiency of these traditional therapeutic methods or treat the tumor cells directly. One such strategy utilizing the Fenton reaction has been investigated by many groups for the possible treatment of cancer cells. This approach is based on the knowledge that high levels of hydrogen peroxide exist within cancer cells and can be used to catalyze the Fenton reaction, leading to cancer-killing reactive oxygen species. Analysis of the current literature has shown that, due to the diverse morphologies, different sizes, various chemical properties, and the tunable structure of nanoparticles, nanotechnology offers the most promising method to facilitate the Fenton reaction with cancer therapy. This review aims to highlight the use of the Fenton reaction using different nanoparticles to improve traditional cancer therapies and the emerging Fenton-based therapy, highlighting the obstacles, challenges, and promising developments in each of these areas.
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Owen J, Crake C, Lee JY, Carugo D, Beguin E, Khrapitchev AA, Browning RJ, Sibson N, Stride E. A versatile method for the preparation of particle-loaded microbubbles for multimodality imaging and targeted drug delivery. Drug Deliv Transl Res 2018; 8:342-356. [PMID: 28299722 PMCID: PMC5830459 DOI: 10.1007/s13346-017-0366-7] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Microbubbles are currently in clinical use as ultrasound contrast agents and under active investigation as mediators of ultrasound therapy. To improve the theranostic potential of microbubbles, nanoparticles can be attached to the bubble shell for imaging, targeting and/or enhancement of acoustic response. Existing methods for fabricating particle-loaded bubbles, however, require the use of polymers, oil layers or chemical reactions for particle incorporation; embed/attach the particles that can reduce echogenicity; impair biocompatibility; and/or involve multiple processing steps. Here, we describe a simple method to embed nanoparticles in a phospholipid-coated microbubble formulation that overcomes these limitations. Magnetic nanoparticles are used to demonstrate the method with a range of different microbubble formulations. The size distribution and yield of microbubbles are shown to be unaffected by the addition of the particles. We further show that the microbubbles can be retained against flow using a permanent magnet, can be visualised by both ultrasound and magnetic resonance imaging (MRI) and can be used to transfect SH-SY5Y cells with fluorescent small interfering RNA under the application of a magnetic field and ultrasound field.
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Affiliation(s)
- Joshua Owen
- Institute of Biomedical Engineering, Department of Engineering Science, Old Road Campus Research Building, University of Oxford, Headington, Oxford, OX3 7DQ, UK
| | - Calum Crake
- Institute of Biomedical Engineering, Department of Engineering Science, Old Road Campus Research Building, University of Oxford, Headington, Oxford, OX3 7DQ, UK
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 221 Longwood Avenue, Boston, MA, 02115, USA
| | - Jeong Yu Lee
- Institute of Biomedical Engineering, Department of Engineering Science, Old Road Campus Research Building, University of Oxford, Headington, Oxford, OX3 7DQ, UK
| | - Dario Carugo
- Institute of Biomedical Engineering, Department of Engineering Science, Old Road Campus Research Building, University of Oxford, Headington, Oxford, OX3 7DQ, UK
- Faculty of Engineering and the Environment, University of Southampton, Southampton, UK
| | - Estelle Beguin
- Institute of Biomedical Engineering, Department of Engineering Science, Old Road Campus Research Building, University of Oxford, Headington, Oxford, OX3 7DQ, UK
| | - Alexandre A Khrapitchev
- Cancer Research UK & Medical Research Council Oxford Institute for Radiation Oncology, Department of Oncology, Old Road Campus Research Building, University of Oxford, Headington, Oxford, OX3 7DQ, UK
| | - Richard J Browning
- Institute of Biomedical Engineering, Department of Engineering Science, Old Road Campus Research Building, University of Oxford, Headington, Oxford, OX3 7DQ, UK
| | - Nicola Sibson
- Cancer Research UK & Medical Research Council Oxford Institute for Radiation Oncology, Department of Oncology, Old Road Campus Research Building, University of Oxford, Headington, Oxford, OX3 7DQ, UK
| | - Eleanor Stride
- Institute of Biomedical Engineering, Department of Engineering Science, Old Road Campus Research Building, University of Oxford, Headington, Oxford, OX3 7DQ, UK.
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Qian X, Zheng Y, Chen Y. Micro/Nanoparticle-Augmented Sonodynamic Therapy (SDT): Breaking the Depth Shallow of Photoactivation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:8097-8129. [PMID: 27384408 DOI: 10.1002/adma.201602012] [Citation(s) in RCA: 475] [Impact Index Per Article: 59.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 05/28/2016] [Indexed: 05/08/2023]
Abstract
The fast development of photoactivation for cancer treatment provides an efficient photo-therapeutic strategy for cancer treatment, but traditional photodynamic or photothermal therapy suffers from the critical issue of low in vivo penetration depth of tissues. As a non-invasive therapeutic modality, sonodynamic therapy (SDT) can break the depth barrier of photoactivation because ultrasound has an intrinsically high tissue-penetration performance. Micro/nanoparticles can efficiently augment the SDT efficiency based on nanobiotechnology. The state-of-art of the representative achievements on micro/nanoparticle-enhanced SDT is summarized, and specific functions of micro/nanoparticles for SDT are discussed, from the different viewpoints of ultrasound medicine, material science and nanobiotechnology. Emphasis is put on the relationship of structure/composition-SDT performance of micro/nanoparticle-based sonosensitizers. Three types of micro/nanoparticle-augmented SDT are discussed, including organic and inorganic sonosensitizers and micro/nanoparticle-based but sonosensitizer-free strategies to enhance the SDT outcome. SDT-based synergistic cancer therapy augmented by micro/nanoparticles and their biosafety are also included. Some urgent critical issues and potential developments of micro/nanoparticle-augmented SDT for efficient cancer treatment are addressed. It is highly expected that micro/nanoparticle-augmented SDT will be quickly developed as a new and efficient therapeutic modality which will find practical applications in cancer treatment. At the same time, fundamental disciplines regarding materials science, chemistry, medicine and nanotechnology will be advanced.
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Affiliation(s)
- Xiaoqin Qian
- Department of Ultrasound, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, 212002, P. R. China
| | - Yuanyi Zheng
- Sixth Affiliated Hospital of Shanghai Jiaotong University & Shanghai Institute of Ultrasound in Medicine, Shanghai, 200233, P. R. China.
| | - Yu Chen
- State Key Laboratory of High Performance Ceramic and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China.
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Wei Z, Wu Y, Zhao Y, Mi L, Wang J, Wang J, Zhao J, Wang L, Liu A, Li Y, Wei W, Zhang Y, Liu S. Multifunctional nanoprobe for cancer cell targeting and simultaneous fluorescence/magnetic resonance imaging. Anal Chim Acta 2016; 938:156-64. [PMID: 27619098 DOI: 10.1016/j.aca.2016.07.037] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 07/22/2016] [Accepted: 07/25/2016] [Indexed: 12/19/2022]
Abstract
Multifunctional nanoprobes with distinctive magnetic and fluorescent properties are highly useful in accurate and early cancer diagnosis. In this study, nanoparticles of Fe3O4 core with fluorescent SiO2 shell (MFS) are synthesized by a facile improved Stöber method. These nanoparticles owning a significant core-shell structure exhibit good dispersion, stable fluorescence, low cytotoxicity and excellent biocompatibility. TLS11a aptamer (Apt1), a specific membrane protein for human liver cancer cells which could be internalized into cells, is conjugated to the MFS nanoparticles through the formation of amide bond working as a target-specific moiety. The attached TLS11a aptamers on nanoparticles are very stable and can't be hydrolyzed by DNA hydrolytic enzyme in vivo. Both fluorescence and magnetic resonance imaging show significant uptake of aptamer conjugated nanoprobe by HepG2 cells compared to 4T1, SGC-7901 and MCF-7 cells. In addition, with the increasing concentration of the nanoprobe, T2-weighted MRI images of the as-treated HepG2 cells are significantly negatively enhanced, indicating that a high magnetic field gradient is generated by MFS-Apt1 which has been specifically captured by HepG2 cells. The relaxivity of nanoprobe is calculated to be 11.5 mg(-1)s(-1). The MR imaging of tumor-bearing nude mouse is also confirmed. The proposed multifunctional nanoprobe with the size of sub-100 nm has the potential to provide real-time imaging in early liver cancer cell diagnosis.
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Affiliation(s)
- Zhenzhen Wei
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Yafeng Wu
- Laboratory of Bio-inspired Smart Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Yuewu Zhao
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Li Mi
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Jintao Wang
- Taixing People's Hospital, Taixing 225400, People's Republic of China
| | - Jimin Wang
- Taixing People's Hospital, Taixing 225400, People's Republic of China
| | - Jinjin Zhao
- Department of Microbiology and Immunology, Medical School of Southeast University, Nanjing 211189, People's Republic of China
| | - Lixin Wang
- Department of Microbiology and Immunology, Medical School of Southeast University, Nanjing 211189, People's Republic of China
| | - Anran Liu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Ying Li
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Wei Wei
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Yuanjian Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Songqin Liu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China.
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Wen CY, Xie HY, Zhang ZL, Wu LL, Hu J, Tang M, Wu M, Pang DW. Fluorescent/magnetic micro/nano-spheres based on quantum dots and/or magnetic nanoparticles: preparation, properties, and their applications in cancer studies. NANOSCALE 2016; 8:12406-29. [PMID: 26831217 DOI: 10.1039/c5nr08534a] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The study of cancer is of great significance to human survival and development, due to the fact that cancer has become one of the greatest threats to human health. In recent years, the rapid progress of nanoscience and nanotechnology has brought new and bright opportunities to this field. In particular, the applications of quantum dots (QDs) and magnetic nanoparticles (MNPs) have greatly promoted early diagnosis and effective therapy of cancer. In this review, we focus on fluorescent/magnetic micro/nano-spheres based on QDs and/or MNPs (we may call them "nanoparticle-sphere (NP-sphere) composites") from their preparation to their bio-application in cancer research. Firstly, we outline and compare the main four kinds of methods for fabricating NP-sphere composites, including their design principles, operation processes, and characteristics (merits and limitations). The NP-sphere composites successfully inherit the unique fluorescence or magnetic properties of QDs or MNPs. Moreover, compared with the nanoparticles (NPs) alone, the NP-sphere composites show superior properties, which are also discussed in this review. Then, we summarize their recent applications in cancer research from three aspects, that is: separation and enrichment of target tumor cells or biomarkers; cancer diagnosis mainly through medical imaging or tumor biomarker detection; and cancer therapy via targeted drug delivery systems. Finally, we provide some perspectives on the future challenges and development trends of the NP-sphere composites.
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Affiliation(s)
- Cong-Ying Wen
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, State Key Laboratory of Virology, The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Wuhan, 430072, P. R. China.
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13
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Gu Y, Chen C, Tu J, Guo X, Wu H, Zhang D. Harmonic responses and cavitation activity of encapsulated microbubbles coupled with magnetic nanoparticles. ULTRASONICS SONOCHEMISTRY 2016; 29:309-316. [PMID: 26585011 DOI: 10.1016/j.ultsonch.2015.10.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Revised: 10/08/2015] [Accepted: 10/08/2015] [Indexed: 06/05/2023]
Abstract
Encapsulated microbubbles coupled with magnetic nanoparticles, one kind of hybrid agents that can integrate both ultrasound and magnetic resonance imaging/therapy functions, have attracted increasing interests in both research and clinic communities. However, there is a lack of comprehensive understanding of their dynamic behaviors generated in diagnostic and therapeutic applications. In the present work, a hybrid agent was synthesized by integrating superparamagnetic iron oxide nanoparticles (SPIOs) into albumin-shelled microbubbles (named as SPIO-albumin microbubbles). Then, both the stable and inertial cavitation thresholds of this hybrid agent were measured at varied SPIO concentrations and ultrasound parameters (e.g., frequency, pressure amplitude, and pulse length). The results show that, at a fixed acoustic driving frequency, both the stable and inertial cavitation thresholds of SPIO-albumin microbubble should decrease with the increasing SPIO concentration and acoustic driving pulse length. The inertial cavitation threshold of SPIO-albumin microbubbles also decreases with the raised driving frequency, while the minimum sub- and ultra-harmonic thresholds appear at twice and two thirds resonance frequency, respectively. It is also noticed that both the stable and inertial cavitation thresholds of SonoVue microbubbles are similar to those measured for hybrid microbubbles with a SPIO concentration of 114.7 μg/ml. The current work could provide better understanding on the impact of the integrated SPIOs on the dynamic responses (especially the cavitation activities) of hybrid microbubbles, and suggest the shell composition of hybrid agents should be appropriately designed to improve their clinical diagnostic and therapeutic performances of hybrid microbubble agents.
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Affiliation(s)
- Yuyang Gu
- Key Laboratory of Modern Acoustics (MOE), Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China
| | - Chuyi Chen
- Key Laboratory of Modern Acoustics (MOE), Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China
| | - Juan Tu
- Key Laboratory of Modern Acoustics (MOE), Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China.
| | - Xiasheng Guo
- Key Laboratory of Modern Acoustics (MOE), Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China
| | - Hongyi Wu
- Key Laboratory of Modern Acoustics (MOE), Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China
| | - Dong Zhang
- Key Laboratory of Modern Acoustics (MOE), Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China; The State Key Laboratory of Acoustics, Chinese Academy of Science, Beijing 10080, China.
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14
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Dolci S, Domenici V, Vidili G, Orecchioni M, Bandiera P, Madeddu R, Farace C, Peana M, Tiné MR, Manetti R, Sgarrella F, Delogu LG. Immune compatible cystine-functionalized superparamagnetic iron oxide nanoparticles as vascular contrast agents in ultrasonography. RSC Adv 2016. [DOI: 10.1039/c5ra19652c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Superparamagnetic iron oxide nanoparticles (SPIONs) have been investigated for biomedical applications.
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Affiliation(s)
- Sara Dolci
- Department of Chemistry and Industrial Chemistry
- University of Pisa
- 56124 Pisa
- Italy
| | - Valentina Domenici
- Department of Chemistry and Industrial Chemistry
- University of Pisa
- 56124 Pisa
- Italy
| | - Gianpaolo Vidili
- Department of Clinical and Experimental Medicine
- University of Sassari
- 07100 Sassari
- Italy
| | - Marco Orecchioni
- Department of Chemistry and Pharmacy
- University of Sassari
- 07100 Sassari
- Italy
| | - Pasquale Bandiera
- Department of Biomedical Sciences
- University of Sassari
- 07100 Sassari
- Italy
| | - Roberto Madeddu
- Department of Biomedical Sciences
- University of Sassari
- 07100 Sassari
- Italy
| | - Cristiano Farace
- Department of Biomedical Sciences
- University of Sassari
- 07100 Sassari
- Italy
| | - Massimiliano Peana
- Department of Chemistry and Pharmacy
- University of Sassari
- 07100 Sassari
- Italy
| | - Maria Rosaria Tiné
- Department of Chemistry and Industrial Chemistry
- University of Pisa
- 56124 Pisa
- Italy
| | - Roberto Manetti
- Department of Clinical and Experimental Medicine
- University of Sassari
- 07100 Sassari
- Italy
| | | | - Lucia Gemma Delogu
- Department of Chemistry and Pharmacy
- University of Sassari
- 07100 Sassari
- Italy
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15
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Owen J, Rademeyer P, Chung D, Cheng Q, Holroyd D, Coussios C, Friend P, Pankhurst QA, Stride E. Magnetic targeting of microbubbles against physiologically relevant flow conditions. Interface Focus 2015; 5:20150001. [PMID: 26442137 PMCID: PMC4549839 DOI: 10.1098/rsfs.2015.0001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The localization of microbubbles to a treatment site has been shown to be essential to their effectiveness in therapeutic applications such as targeted drug delivery and gene therapy. A variety of different strategies for achieving localization has been investigated, including biochemical targeting, acoustic radiation force, and the incorporation of superparamagnetic nanoparticles into microbubbles to enable their manipulation using an externally applied magnetic field. The third of these strategies has the advantage of concentrating microbubbles in a target region without exposing them to ultrasound, and can be used in conjunction with biochemical targeting to achieve greater specificity. Magnetic microbubbles have been shown to be effective for therapeutic delivery in vitro and in vivo. Whether this technique can be successfully applied in humans however remains an open question. The aim of this study was to determine the range of flow conditions under which targeting could be achieved. In vitro results indicate that magnetic microbubbles can be retained using clinically acceptable magnetic fields, for both the high shear rates (approx. 104 s−1) found in human arterioles and capillaries, and the high flow rates (approx. 3.5 ml s−1) of human arteries. The potential for human in vivo microbubble retention was further demonstrated using a perfused porcine liver model.
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Affiliation(s)
- Joshua Owen
- Institute of Biomedical Engineering, Department of Engineering Science , University of Oxford , Old Road Campus Research Building, Oxford OX3 7DQ , UK
| | - Paul Rademeyer
- Institute of Biomedical Engineering, Department of Engineering Science , University of Oxford , Old Road Campus Research Building, Oxford OX3 7DQ , UK
| | - Daniel Chung
- Institute of Biomedical Engineering, Department of Engineering Science , University of Oxford , Old Road Campus Research Building, Oxford OX3 7DQ , UK ; Nuffield Department of Surgical Sciences , University of Oxford , John Radcliffe Hospital, Oxford OX3 9DU , UK
| | - Qian Cheng
- Institute of Biomedical Engineering, Department of Engineering Science , University of Oxford , Old Road Campus Research Building, Oxford OX3 7DQ , UK
| | - David Holroyd
- Institute of Biomedical Engineering, Department of Engineering Science , University of Oxford , Old Road Campus Research Building, Oxford OX3 7DQ , UK ; Nuffield Department of Surgical Sciences , University of Oxford , John Radcliffe Hospital, Oxford OX3 9DU , UK
| | - Constantin Coussios
- Institute of Biomedical Engineering, Department of Engineering Science , University of Oxford , Old Road Campus Research Building, Oxford OX3 7DQ , UK
| | - Peter Friend
- Nuffield Department of Surgical Sciences , University of Oxford , John Radcliffe Hospital, Oxford OX3 9DU , UK
| | - Quentin A Pankhurst
- Healthcare Biomagnetics Laboratory , University College London , 21 Albemarle Street, London W1S 4BS , UK ; Institute of Biomedical Engineering , University College London , Gower Street, London WC1E 6BT , UK
| | - Eleanor Stride
- Institute of Biomedical Engineering, Department of Engineering Science , University of Oxford , Old Road Campus Research Building, Oxford OX3 7DQ , UK
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16
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Lee N, Yoo D, Ling D, Cho MH, Hyeon T, Cheon J. Iron Oxide Based Nanoparticles for Multimodal Imaging and Magnetoresponsive Therapy. Chem Rev 2015; 115:10637-89. [PMID: 26250431 DOI: 10.1021/acs.chemrev.5b00112] [Citation(s) in RCA: 586] [Impact Index Per Article: 65.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Nohyun Lee
- School of Advanced Materials Engineering, Kookmin University , Seoul 136-702, Korea
| | - Dongwon Yoo
- Department of Chemistry, Yonsei University , Seoul 120-749, Korea
| | - Daishun Ling
- Center for Nanoparticle Research, Institute for Basic Science (IBS) , Seoul 151-742, Korea.,School of Chemical and Biological Engineering, Seoul National University , Seoul 151-742, Korea.,Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, PR China
| | - Mi Hyeon Cho
- Department of Chemistry, Yonsei University , Seoul 120-749, Korea
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS) , Seoul 151-742, Korea.,School of Chemical and Biological Engineering, Seoul National University , Seoul 151-742, Korea
| | - Jinwoo Cheon
- Department of Chemistry, Yonsei University , Seoul 120-749, Korea
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17
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Duan L, Yang F, Song L, Fang K, Tian J, Liang Y, Li M, Xu N, Chen Z, Zhang Y, Gu N. Controlled assembly of magnetic nanoparticles on microbubbles for multimodal imaging. SOFT MATTER 2015; 11:5492-5500. [PMID: 26061750 DOI: 10.1039/c5sm00864f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Magnetic microbubbles (MMBs) consisting of microbubbles (MBs) and magnetic nanoparticles (MNPs) were synthesized for use as novel markers for improving multifunctional biomedical imaging. The MMBs were fabricated by assembling MNPs in different concentrations on the surfaces of MBs. The relationships between the structure, magnetic properties, stability of the MMBs, and their use in magnetic resonance/ultrasound (MR/US) dual imaging applications were determined. The MNPs used were NPs of 3-aminopropyltriethoxysilane (APTS)-functionalized superparamagnetic iron oxide γ-Fe2O3 (SPIO). SPIO was assembled on the surfaces of polymer MBs using a "surface-coating" approach. An analysis of the underlying mechanism showed that the synergistic effects of covalent coupling, electrostatic adsorption, and aggregation of the MNPs allowed them to be unevenly assembled in large amounts on the surfaces of the MBs. With an increase in the MNP loading amount, the magnetic properties of the MMBs improved significantly; in this way, the shell structure and mechanical properties of the MMBs could be modified. For surface densities ranging from 2.45 × 10(-7) μg per MMB to 8.45 × 10(-7) μg per MMB, in vitro MR/US imaging experiments showed that, with an increase in the number of MNPs on the surfaces of the MBs, the MMBs exhibited better T2 MR imaging contrast, as well as an increase in the US contrast for longer durations. In vivo experiments also showed that, by optimizing the structure of the MMBs, enhanced MR/US dual-modality image signals could be obtained for mouse tumors. Therefore, by adjusting the shell composition of MBs through the assembly of MNPs in different concentrations, MMBs with good magnetic and acoustic properties for MR/US dual-modality imaging contrast agents could be obtained.
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Affiliation(s)
- Lei Duan
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China.
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18
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Wang X, Niu D, Li P, Wu Q, Bo X, Liu B, Bao S, Su T, Xu H, Wang Q. Dual-Enzyme-Loaded Multifunctional Hybrid Nanogel System for Pathological Responsive Ultrasound Imaging and T2-Weighted Magnetic Resonance Imaging. ACS NANO 2015; 9:5646-56. [PMID: 26035730 DOI: 10.1021/nn5068094] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
A dual-enzyme-loaded multifunctional hybrid nanogel probe (SPIO@GCS/acryl/biotin-CAT/SOD-gel, or SGC) has been developed for dual-modality pathological responsive ultrasound (US) imaging and enhanced T2-weighted magnetic resonance (MR) imaging. This probe is composed of functionalized superparamagnetic iron oxide particles, a dual enzyme species (catalase and superoxide dismutase), and a polysaccharide cationic polymer glycol chitosan gel. The dual-modality US/MR imaging capabilities of the hybrid nanogel for responsive US imaging and enhanced T2-weighted MR imaging have been evaluated both in vitro and in vivo. These results show that the hybrid nanogel SGC can exhibit efficient dual-enzyme biocatalysis with pathological species for responsive US imaging. SGC also demonstrates increased accumulation in acidic environments for enhanced T2-weighted MR imaging. Further research on these nanogel systems may lead to the development of more efficient US/MR contrast agents.
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Affiliation(s)
- Xia Wang
- †Department of Chemistry and Advanced Research Institute, Tongji University, Shanghai, 200092, China
| | - Dechao Niu
- ‡Lab of Low-Dimensional Materials Chemistry, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Pei Li
- §Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Tenth People's Hospital of Tongji University, Shanghai, 200072, China
| | - Qing Wu
- †Department of Chemistry and Advanced Research Institute, Tongji University, Shanghai, 200092, China
| | - Xiaowan Bo
- §Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Tenth People's Hospital of Tongji University, Shanghai, 200072, China
| | - Boji Liu
- §Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Tenth People's Hospital of Tongji University, Shanghai, 200072, China
| | - Song Bao
- †Department of Chemistry and Advanced Research Institute, Tongji University, Shanghai, 200092, China
| | - Teng Su
- †Department of Chemistry and Advanced Research Institute, Tongji University, Shanghai, 200092, China
| | - Huixiong Xu
- §Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Tenth People's Hospital of Tongji University, Shanghai, 200072, China
| | - Qigang Wang
- †Department of Chemistry and Advanced Research Institute, Tongji University, Shanghai, 200092, China
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Hou M, Chen C, Tang D, Luo S, Yang F, Gu N. Magnetic microbubble-mediated ultrasound-MRI registration based on robust optical flow model. Biomed Eng Online 2015; 14 Suppl 1:S14. [PMID: 25602434 PMCID: PMC4306103 DOI: 10.1186/1475-925x-14-s1-s14] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background As a dual-modality contrast agent, magnetic microbubbles (MMBs) can not only improve contrast of ultrasound (US) image, but can also serve as a contrast agent of magnetic resonance image (MRI). With the help of MMBs, a new registration method between US image and MRI is presented. Methods In this method, MMBs were used in both ultrasound and magnetic resonance imaging process to enhance the most important information of interest. In order to reduce the influence of the speckle noise to registration, semi-automatic segmentations of US image and MRI were carried out by using active contour model. After that, a robust optical flow model between US image segmentation (floating image) and MRI segmentation (reference image) was built, and the vector flow field was estimated by using the Coarse-to-fine Gaussian pyramid and graduated non-convexity (GNC) schemes. Results Qualitative and quantitative analyses of multiple group comparison experiments showed that registration results using all methods tested in this paper without MMBs were unsatisfactory. On the contrary, the proposed method combined with MMBs led to the best registration results. Conclusion The proposed algorithm combined with MMBs contends with larger deformation and performs well not only for local deformation but also for global deformation. The comparison experiments also demonstrated that ultrasound-MRI registration using the above-mentioned method might be a promising method for obtaining more accurate image information.
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20
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Guo G, Lu L, Yin L, Tu J, Guo X, Wu J, Xu D, Zhang D. Mechanical and dynamic characteristics of encapsulated microbubbles coupled by magnetic nanoparticles as multifunctional imaging and drug delivery agents. Phys Med Biol 2014; 59:6729-47. [DOI: 10.1088/0031-9155/59/22/6729] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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21
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Kothapalli SVVN, Oddo L, Paradossi G, Brodin LÅ, Grishenkov D. Assessment of the viscoelastic and oscillation properties of a nano-engineered multimodality contrast agent. ULTRASOUND IN MEDICINE & BIOLOGY 2014; 40:2476-2487. [PMID: 25194455 DOI: 10.1016/j.ultrasmedbio.2014.05.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 05/20/2014] [Accepted: 05/26/2014] [Indexed: 06/03/2023]
Abstract
Combinations of microbubbles (MBs) and superparamagnetic iron oxide nanoparticles (SPIONs) are used to fabricate dual contrast agents for ultrasound and MRI. This study examines the viscoelastic and oscillation characteristics of two MB types that are manufactured with SPIONs and either anchored chemically on the surface (MBs-chem) or physically embedded (MBs-phys) into a polymer shell. A linearized Church model was employed to simultaneously fit attenuation coefficients and phase velocity spectra that were acquired experimentally. The model predicted lower viscoelastic modulus values, undamped resonance frequencies and total damping ratios for MBs-chem. MBs-chem had a resonance frequency of approximately 13 MHz and a damping ratio of approximately 0.9; thus, MBs-chem can potentially be used as a conventional ultrasound contrast agent with the combined functionality of MRI detection. In contrast, MBs-phys had a resonance frequency and damping of 28 MHz and 1.2, respectively, and requires further modification of clinically available contrast pulse sequences to be visualized.
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Affiliation(s)
- Satya V V N Kothapalli
- Department of Medical Engineering, School of Technology and Health, KTH, Royal Institute of Technology, Sweden
| | - Letizia Oddo
- Department of Chemical Sciences and Technologies, University of Rome Tor Vergata, Rome, Italy
| | - Gaio Paradossi
- Department of Chemical Sciences and Technologies, University of Rome Tor Vergata, Rome, Italy
| | - Lars-Åke Brodin
- Department of Medical Engineering, School of Technology and Health, KTH, Royal Institute of Technology, Sweden
| | - Dmitry Grishenkov
- Department of Medical Engineering, School of Technology and Health, KTH, Royal Institute of Technology, Sweden; Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institute, Huddinge, Sweden; Department of Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden.
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22
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Guo C, Jin Y, Dai Z. Multifunctional Ultrasound Contrast Agents for Imaging Guided Photothermal Therapy. Bioconjug Chem 2014; 25:840-54. [DOI: 10.1021/bc500092h] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Caixin Guo
- School
of Life Science and Technology, Harbin Institute of Technology, Harbin 150080, China
| | - Yushen Jin
- School
of Life Science and Technology, Harbin Institute of Technology, Harbin 150080, China
- Department
of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Zhifei Dai
- Department
of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China
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23
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Liu L, Xiao Z, Xiao Y, Wang Z, Li F, Li M, Peng X. Potential enhancement of intravenous nano-hydroxyapatite in high-intensity focused ultrasound ablation for treating hepatocellular carcinoma in a rabbit model. Oncol Lett 2014; 7:1485-1492. [PMID: 24765161 PMCID: PMC3997670 DOI: 10.3892/ol.2014.1900] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Accepted: 01/15/2014] [Indexed: 11/17/2022] Open
Abstract
The aim of the present study was to evaluate the safety and efficiency of an intravenously delivered nano-hydroxyapatite (Nano-HA) solution into a rabbit model (Oryctolagus cuniculus) to determine the potential enhancement of high-intensity focused ultrasound (HIFU) for the ablation of hepatocellular carcinoma (HCC) in liver tissue. The present study clearly indicated that the intravenous delivery of large quantities of Nano-HA into the body of the rabbit model over relatively short periods of time may be absorbed by the hepatic reticuloendothelial system. Subsequent HIFU treatment for HCC, as well as intravenous Nano-HA, produced a rapid increase in temperature and an enlargement of the coagulated necrotic area during ablation in the in vivo and ex vivo environments. In addition, it was found that the therapeutic doses of Nano-HA produced mild and transient abnormalities in the normal renal function and hepatic enzymes during the first 24 h following administration. The results of the current study indicated that the combination of Nano-HA and HIFU may provide a safe and effective alternative to conventional surgical procedures.
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Affiliation(s)
- Liping Liu
- Department of Ultrasound, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Ziwen Xiao
- Department of Ultrasound, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Yanbing Xiao
- Department of Ultrasound, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Zhibiao Wang
- Department of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Faqi Li
- Department of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Maoping Li
- Department of Ultrasound, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Xiaoqiong Peng
- Department of Ultrasound, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
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Kim JJ, Singh RK, Seo SJ, Kim TH, Kim JH, Lee EJ, Kim HW. Magnetic scaffolds of polycaprolactone with functionalized magnetite nanoparticles: physicochemical, mechanical, and biological properties effective for bone regeneration. RSC Adv 2014. [DOI: 10.1039/c4ra00040d] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Novel nanocomposite magnetic scaffolds demonstrated excellent bone cell responses.
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Affiliation(s)
- Jung-Ju Kim
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
- Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
| | - Rajendra K. Singh
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
- Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
| | - Seog-Jin Seo
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
- Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
| | - Tae-Hyun Kim
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
- Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
| | - Joong-Hyun Kim
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
- Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
| | - Eun-Jung Lee
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
- Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
| | - Hae-Won Kim
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
- Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
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25
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Li XD, Liang XL, Yue XL, Wang JR, Li CH, Deng ZJ, Jing LJ, Lin L, Qu EZ, Wang SM, Wu CL, Wu HX, Dai ZF. Imaging guided photothermal therapy using iron oxide loaded poly(lactic acid) microcapsules coated with graphene oxide. J Mater Chem B 2014; 2:217-223. [DOI: 10.1039/c3tb21281e] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Li A, Zheng Y, Yu J, Wang Z, Yang Y, Wu W, Guo D, Ran H. Superparamagnetic perfluorooctylbromide nanoparticles as a multimodal contrast agent for US, MR, and CT imaging. Acta Radiol 2013; 54:278-83. [PMID: 23319724 DOI: 10.1258/ar.2012.120130] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
BACKGROUND Multimodal contrast agents usually containing two or more signal components can be used for several imaging modalities. Thus, complimentary information can be obtained by using just one kind of contrast agents. PURPOSE To investigate the potential of superparamagnetic perfluorooctylbromide nanoparticles (M-PFOBNP) as a multimodal contrast agent for ultrasonography (US)/magnetic resonance (MR)/computed tomography (CT) multimodality imaging. MATERIAL AND METHODS The composite agent M-PFOBNP was developed by introducing superparamagnetic Fe3O4 nanoparticles into perfluorooctylbromide nanoparticles (PFOBNP). Several analytical tools were employed to characterize the agent. The potential of M-PFOBNP for US/MR/CT multimodality imaging were assessed in vivo. The cellular uptake and cytotoxicity of the agent were studied in vitro. RESULTS M-PFOBNP with well-defined spherical morphology and homogeneous size of 200-250 nm was obtained. Fe3O4 nanoparticles were successfully integrated into PFOBNP and preserved their superparamagnetic characteristics after encapsulation. The in vivo studies showed that M-PFOBNP produced higher echogenicity than PFOBNP and possessed strong magnetic susceptibility and radiopacity for multimodality imaging. Macrophages incubated with different concentrations of M-PFOBNP resulted in a dose-dependent cellular uptake, which did not affect the viability of the cells. CONCLUSION M-PFOBNP may potentially serve as a multimodal contrast agent for enhanced US, MR, and CT imaging.
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Affiliation(s)
- Ao Li
- Department of Ultrasound in Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing
| | - Yuanyi Zheng
- Institute of Ultrasound Imaging, the Second Affiliated Hospital of Chongqing Medical University, Chongqing
| | - Jinhong Yu
- Institute of Ultrasound Imaging, the Second Affiliated Hospital of Chongqing Medical University, Chongqing
| | - Zhigang Wang
- Institute of Ultrasound Imaging, the Second Affiliated Hospital of Chongqing Medical University, Chongqing
| | - Yang Yang
- Institute of Ultrasound Imaging, the Second Affiliated Hospital of Chongqing Medical University, Chongqing
| | - Wei Wu
- Department of Radiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dajing Guo
- Department of Radiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Haitao Ran
- Institute of Ultrasound Imaging, the Second Affiliated Hospital of Chongqing Medical University, Chongqing
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Abstract
A novel remotely triggered drug vehicle having multimodal imaging functionality was developed. It exhibits magnetic resonance (MR) imaging, ultrasound (US) imaging, encapsulation of a hydrophobic agent and US-triggered release behavior. Lipophilic superparamagnetic iron oxide (SPIO) nanoparticles were self-assembled with an amphiphilic chitosan derivative, carboxymethyl hexanoyl chitosan (CHC), to form superparamagnetic CHC/SPIO micelles and then loaded with camptothecin (a hydrophobic anticancer agent). The superparamagnetic micelles were then conjugated with albumin-based microbubbles (MBs) to form superparamagnetic micelle-decorated MBs (CHC/SPIO-decorated MBs). The albumin MBs and CHC/SPIO-decorated MBs both demonstrated in vitro concentration-dependent US imaging contrast. Interestingly, the in vitro US contrast was enhanced by decoration. In vivo US images showed that the B-mode contrast of the proposed vehicles could be clearly observed in the veins and arteries of Sprague-Dawley rats. Moreover, the proposed vehicle exhibited significant US-triggered release behavior under therapeutic US sonication at a frequency of 1MHz and power density of 2.4Wcm(-2) for 30min. However, similar behavior was not observed under diagnostic US bombardment at a frequency of 12MHz and mechanical index of 0.5. On the other hand, in vitro MR images of the CHC/SPIO-micelle-decorated MBs also revealed a significant concentration-dependent T(2) (spin-spin relaxation time) contrast due to their decoration with superparamagnetic micelles. Most importantly, the r(2)(∗)-r(2) value of the CHC/SPIO-decorated MBs decreased after therapeutic US bombardment for 30min. This might be considered as an index to probe destruction of the drug-loaded CHC/SPIO micelles.
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Niu C, Wang Z, Lu G, Krupka TM, Sun Y, You Y, Song W, Ran H, Li P, Zheng Y. Doxorubicin loaded superparamagnetic PLGA-iron oxide multifunctional microbubbles for dual-mode US/MR imaging and therapy of metastasis in lymph nodes. Biomaterials 2012; 34:2307-17. [PMID: 23276658 DOI: 10.1016/j.biomaterials.2012.12.003] [Citation(s) in RCA: 164] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Accepted: 12/09/2012] [Indexed: 02/05/2023]
Abstract
Current strategies for tumor-induced sentinel lymph node detection and metastasis therapy have limitations. In this work, we co-encapsulated iron oxide nanoparticles and chemotherapeutic drug into poly(lactic-co-glycolic acid) (PLGA) microbubbles to form multifunctional polymer microbubbles (MPMBs) for both tumor lymph node imaging and therapy. Fe(3)O(4) nanoparticles and doxorubicin (DOX) co-encapsulated PLGA microbubbles were prepared and filled with perfluorocarbon gas. Enhancement of ultrasound (US)/magnetic resonance (MR) imaging and US triggered drug delivery were evaluated both in vitro and in vivo. The MPMBs exhibited characters like narrow size distribution and smooth surface with a mean diameter of 868.0 ± 68.73 nm. In addition, varying the concentration of Fe(3)O(4) nanoparticles in the bubbles did not significantly influence the DOX encapsulation efficiency or drug loading efficiency. Our in vitro results demonstrated that these MPMBs could enhance both US and MR imaging which was further validated in vivo showing that these MPMBs enhanced tumor lymph nodes signals. The anti-tumor effect of MPMBs mediated chemotherapy was assessed in vivo using end markers like tumor proliferation index, micro blood vessel density and micro lymphatic vessel density, which were shown consistently the lowest after the MPMBs plus sonication treatment compared to controls. In line with these findings, the tumor cell apoptotic index was found the largest after the MPMBs plus sonication treatment. In conclusion, we have successfully developed a doxorubicin loaded superparamagnetic PLGA-Iron Oxide multifunctional theranostic agent for dual-mode US/MR Imaging of lymph node, and for low frequency US triggered therapy of metastasis in lymph nodes, which might provide a strategy for the imaging and chemotherapy of primary tumor and their metastases.
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Affiliation(s)
- Chengcheng Niu
- Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, PR China
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Wang X, Chen H, Zheng Y, Ma M, Chen Y, Zhang K, Zeng D, Shi J. Au-nanoparticle coated mesoporous silica nanocapsule-based multifunctional platform for ultrasound mediated imaging, cytoclasis and tumor ablation. Biomaterials 2012; 34:2057-68. [PMID: 23246067 DOI: 10.1016/j.biomaterials.2012.11.044] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2012] [Accepted: 11/23/2012] [Indexed: 02/07/2023]
Abstract
Au nanoparticles-coated, perfluorohexane-encapsulated and PEGylated mesoporous silica nanocapsule-based enhancement agents (MSNC@Au-PFH-PEG, abb. as MAPP) have been synthesized, for the ultrasound-induced cytoclasis, contrast-intensified ultrasound (US) imaging and US-guided high intensity focused ultrasound (HIFU) surgical therapy. Both the US-induced thermal effect and US triggered release of loaded model drug with MAPP under US exposure indicated the excellent US sensitivity of MAPP and its applicability for the combined chemo-/thermal therapy and future potential for HIFU ablation; US imaging under different modes verify the attractive US contrast intensification by using MAPP; US-guided HIFU therapy ex vivo and in vivo with MAPP is found to be highly efficient on rabbit VX2 xenograft tumor ablation due to the high thermal energy accumulation and increased mechanical/thermal effects from US-induced PFH bubble cavitations. MAPP can be promisingly used as an inorganic theranostic platform for contrast-intensified US imaging, combined chemotherapy and efficient HIFU tumor ablation under the guidance by the intensified US.
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Affiliation(s)
- Xia Wang
- State Key Laboratory of High Performance Ceramic and Superfine Microstructures, Shanghai Institute of Ceramics Chinese Academy of Science, Shanghai 200050, China
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Owen J, Zhou B, Rademeyer P, Tang MX, Pankhurst Q, Eckersley R, Stride E. Understanding the structure and mechanism of formation of a new magnetic microbubble formulation. Theranostics 2012; 2:1127-39. [PMID: 23382771 PMCID: PMC3563147 DOI: 10.7150/thno.4307] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Accepted: 07/06/2012] [Indexed: 11/06/2022] Open
Abstract
Magnetic nanoparticles and ultrasound contrast agents have both been used as vehicles for therapeutic delivery. More recently, magnetic microbubbles have been developed as a new theranostic agent which combines the advantages of the individual carriers and overcomes many of their limitations. In a previous study of gene delivery using magnetic microbubbles, it was found that a combination of magnetic liquid droplets and non-magnetic phospholipid microbubbles produced higher transfection rates than magnetic microbubbles. The reasons for this were not fully understood, however. The aim of this study was to investigate the hypothesis that conjugation between the droplets and the microbubbles occurred. A combination of optical and fluorescence microscopy and ultrasound imaging studies in a flow phantom were performed. No interaction between magnetic droplets and microbubbles was observed under optical microscopy but the results from the fluorescence and acoustic imaging indicated that magnetic droplets and microbubbles do indeed combine to form a new magnetically and acoustically responsive particle. Theoretical calculations indicate that the driving force of the interaction is the relative surface energy and thus thermodynamic stability of the microbubbles and the droplets. The new particles were resistant to centrifugation, of comparable echogenicity to conventional ultrasound contrast agents and could be retained by a magnetic field (0.2T) in a flow phantom at centre line velocities of ~6 cm s(-1) and shear rates of ~60 s( -1).
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Affiliation(s)
- Joshua Owen
- 1. Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, UK
| | - Bin Zhou
- 2. Department of Bioengineering, Imperial College London, UK
| | - Paul Rademeyer
- 1. Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, UK
| | - Meng-Xing Tang
- 2. Department of Bioengineering, Imperial College London, UK
| | - Quentin Pankhurst
- 3. Davy-Faraday Research Laboratory, The Royal Institution of Great Britain, London, UK
| | | | - Eleanor Stride
- 1. Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, UK
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Lin CAJ, Chuang WK, Huang ZY, Kang ST, Chang CY, Chen CT, Li JL, Li JK, Wang HH, Kung FC, Shen JL, Chan WH, Yeh CK, Yeh HI, Lai WFT, Chang WH. Rapid transformation of protein-caged nanomaterials into microbubbles as bimodal imaging agents. ACS NANO 2012; 6:5111-5121. [PMID: 22607131 DOI: 10.1021/nn300768d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We present a general method for converting colloidal nanomaterials into microbubbles as ultrasound contrast agents. Protein-caged nanomaterials, made either by self-assembled nanoparticles' protein corona or by fluorescent gold nanoclusters, can be rapidly transformed into microbubbles via a sonochemical route, which promote disulfide cross-linking of cysteine residues between protein-caged nanomaterials and free albumin during acoustic cavitation. The proposed methods yielded microbubbles with multiple functions by adjusting the original nanoparticle/protein mixture. We also showed a new dual-modal imaging agent of fluorescent gold microbubbles in vitro and in vivo, which can hold many potential applications in medical diagnostics and therapy.
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Affiliation(s)
- Cheng-An J Lin
- Department of Biomedical Engineering, Chung Yuan Christian University, Chung-Li 32023, Taiwan.
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Exploring the structure–property relationships of ultrasonic/MRI dual imaging magnetite/PLA microbubbles: magnetite@Cavity versus magnetite@Shell systems. Colloid Polym Sci 2012. [DOI: 10.1007/s00396-012-2682-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Owen J, Pankhurst Q, Stride E. Magnetic targeting and ultrasound mediated drug delivery: Benefits, limitations and combination. Int J Hyperthermia 2012; 28:362-73. [DOI: 10.3109/02656736.2012.668639] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Liao AH, Liu HL, Su CH, Hua MY, Yang HW, Weng YT, Hsu PH, Huang SM, Wu SY, Wang HE, Yen TC, Li PC. Paramagnetic perfluorocarbon-filled albumin-(Gd-DTPA) microbubbles for the induction of focused-ultrasound-induced blood-brain barrier opening and concurrent MR and ultrasound imaging. Phys Med Biol 2012; 57:2787-802. [PMID: 22510713 DOI: 10.1088/0031-9155/57/9/2787] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
This paper presents new albumin-shelled Gd-DTPA microbubbles (MBs) that can concurrently serve as a dual-modality contrast agent for ultrasound (US) imaging and magnetic resonance (MR) imaging to assist blood-brain barrier (BBB) opening and detect intracerebral hemorrhage (ICH) during focused ultrasound brain drug delivery. Perfluorocarbon-filled albumin-(Gd-DTPA) MBs were prepared with a mean diameter of 2320 nm and concentration of 2.903×10(9) MBs ml(-1) using albumin-(Gd-DTPA) and by sonication with perfluorocarbon (C(3)F(8)) gas. The albumin-(Gd-DTPA) MBs were then centrifuged and the procedure was repeated until the free Gd(3+) ions were eliminated (which were detected by the xylenol orange sodium salt solution). The albumin-(Gd-DTPA) MBs were also characterized and evaluated both in vitro and in vivo by US and MR imaging. Focused US was used with the albumin-(Gd-DTPA) MBs to induce disruption of the BBB in 18 rats. BBB disruption was confirmed with contrast-enhanced T(1)-weighted turbo-spin-echo sequence MR imaging. Heavy T(2)*-weighted 3D fast low-angle shot sequence MR imaging was used to detect ICH. In vitro US imaging experiments showed that albumin-(Gd-DTPA) MBs can significantly enhance the US contrast in T(1)-, T(2)- and T(2)*-weighted MR images. The r(1) and r(2) relaxivities for Gd-DTPA were 7.69 and 21.35 s(-1)mM(-1), respectively, indicating that the MBs represent a positive contrast agent in T(1)-weighted images. In vivo MR imaging experiments on 18 rats showed that focused US combined with albumin-(Gd-DTPA) MBs can be used to both induce disruption of the BBB and detect ICH. To compare the signal intensity change between pure BBB opening and BBB opening accompanying ICH, albumin-(Gd-DTPA) MB imaging can provide a ratio of 5.14 with significant difference (p = 0.026), whereas Gd-DTPA imaging only provides a ratio of 2.13 and without significant difference (p = 0.108). The results indicate that albumin-(Gd-DTPA) MBs have potential as a US/MR dual-modality contrast agent for BBB opening and differentiating focused-US-induced BBB opening from ICH, and can monitor the focused ultrasound brain drug delivery process.
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Affiliation(s)
- Ai-Ho Liao
- Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, ROC
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Brismar TB, Grishenkov D, Gustafsson B, Härmark J, Barrefelt A, Kothapalli SVVN, Margheritelli S, Oddo L, Caidahl K, Hebert H, Paradossi G. Magnetite nanoparticles can be coupled to microbubbles to support multimodal imaging. Biomacromolecules 2012; 13:1390-9. [PMID: 22458325 DOI: 10.1021/bm300099f] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Microbubbles (MBs) are commonly used as injectable ultrasound contrast agent (UCA) in modern ultrasonography. Polymer-shelled UCAs present additional potentialities with respect to marketed lipid-shelled UCAs. They are more robust; that is, they have longer shelf and circulation life, and surface modifications are quite easily accomplished to obtain enhanced targeting and local drug delivery. The next generation of UCAs will be required to support not only ultrasound-based imaging methods but also other complementary diagnostic approaches such as magnetic resonance imaging or computer tomography. This work addresses the features of MBs that could function as contrast agents for both ultrasound and magnetic resonance imaging. The results indicate that the introduction of iron oxide nanoparticles (SPIONs) in the poly(vinyl alcohol) shell or on the external surface of the MBs does not greatly decrease the echogenicity of the host MBs compared with the unmodified one. The presence of SPIONs provides enough magnetic susceptibility to the MBs to accomplish good detectability both in vitro and in vivo. The distribution of SPIONs on the shell and their aggregation state seem to be key factors for the optimization of the transverse relaxation rate.
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Affiliation(s)
- Torkel B Brismar
- Department of Clinical Science, Intervention and Technology at Karolinska Institutet, Division of Medical Imaging and Technology, Stockholm, Sweden
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Li L, Wei Q, Li HB, Wen S, Teng GJ. Evaluation of microbubbles as contrast agents for ultrasonography and magnetic resonance imaging. PLoS One 2012; 7:e34644. [PMID: 22506039 PMCID: PMC3323543 DOI: 10.1371/journal.pone.0034644] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Accepted: 03/06/2012] [Indexed: 11/18/2022] Open
Abstract
Background Microbubbles (MBs) can serve as an ultrasound contrast agent, and has the potential for magnetic resonance imaging (MRI). Due to the relatively low effect of MBs on MRI, it is necessary to develop new MBs that are more suitable for MRI. In this study, we evaluate the properties of SonoVue® and custom-made Fe3O4-nanoparticle-embedded microbubbles (Fe3O4-MBs) in terms of contrast agents for ultrsonography (US) and MRI. Methodology/Principal Findings A total of 20 HepG2 subcutaneous-tumor-bearing nude mice were randomly assigned to 2 groups (i.e., n = 10 mice each group), one for US test and the other for MRI test. Within each group, two tests were performed for each mouse. The contrast agent for the first test is SonoVue®, and the second is Fe3O4-MBs. US was performed using a TechnosMPX US system (Esaote, Italy) with a contrast-tuned imaging (CnTI™) mode. MRI was performed using a 7.0T Micro-MRI (PharmaScan, Bruker Biospin GmbH, Germany) with an EPI-T2* sequence. The data of signal-to-noise ratio (SNR) from the region-of-interest of each US and MR image was calculated by ImageJ (National Institute of Health, USA). In group 1, enhancement of SonoVue® was significantly higher than Fe3O4-MBs on US (P<0.001). In group 2, negative enhancement of Fe3O4-MBs was significantly higher than SonoVue® on MRI (P<0.001). The time to peak showed no significant differences between US and MRI, both of which used the same MBs (P>0.05). The SNR analysis of the enhancement process reveals a strong negative correlation in both cases (i.e., SonoVue® r = −0.733, Fe3O4-MBs r = −0.903, with P<0.05). Conclusions It might be important to change the Fe3O4-MBs' shell structure and/or the imagining strategy of US to improve the imaging quality of Fe3O4-MBs on US. As an intriguing prospect that can be detected by US and MRI, MBs are worthy of further study.
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Affiliation(s)
- Ling Li
- Jiangsu Key Laboratory of Molecular Imaging and Functional Imaging, Department of Radiology, Zhong-Da Hospital, Medical School of Southeast University, Nanjing, China
| | - Qiang Wei
- Department of Ultrasound, the Second Affiliated Hospital, Southeast University, Nanjing, China
| | - Hong-Bo Li
- Department of Ultrasound, the Second Affiliated Hospital, Southeast University, Nanjing, China
| | - Song Wen
- Jiangsu Key Laboratory of Molecular Imaging and Functional Imaging, Department of Radiology, Zhong-Da Hospital, Medical School of Southeast University, Nanjing, China
| | - Gao-Jun Teng
- Jiangsu Key Laboratory of Molecular Imaging and Functional Imaging, Department of Radiology, Zhong-Da Hospital, Medical School of Southeast University, Nanjing, China
- * E-mail:
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Cai X, Yang F, Gu N. Applications of magnetic microbubbles for theranostics. Theranostics 2012; 2:103-12. [PMID: 22287990 PMCID: PMC3267385 DOI: 10.7150/thno.3464] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Accepted: 12/01/2011] [Indexed: 12/02/2022] Open
Abstract
Compared with other diagnostic methods, ultrasound is proven to be a safe, simple, non-invasive and cost-effective imaging technique, but the resolution is not comparable to that of magnetic resonance imaging (MRI). Contrast-enhanced ultrasound employing microbubbles can gain a better resolution and is now widely used to diagnose a number of diseases in the clinic. For the last decade, microbubbles have been widely used as ultrasound contrast agents, drug delivery systems and nucleic acid transfection tools. However, microbubbles are not fairly stable enough in some conditions and are not well administrated distributed in the circulation system. On the other hand, magnetic nanoparticles, as MRI contrast agents, can non-specifically penetrate into normal tissues because of their relatively small sizes. By taking advantage of these two kinds of agents, the magnetic microbubbles which couple magnetic iron oxides nanoparticles in the microbubble structure have been explored. The stability of microbubbles can be raised by encapsulating magnetic nanoparticles into the bubble shells and with the guidance of magnetic field, magnetic microbubbles can be delivered to regions of interest, and after appropriate ultrasound exposure, the nanoparticles can be released to the desired area while the magnetic microbubbles collapse. In this review, we summarize magnetic microbubbles used in diagnostic and therapeutic fields, and predict the potential applications of magnetic microbubbles in the future.
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Feshitan JA, Vlachos F, Sirsi SR, Konofagou EE, Borden MA. Theranostic Gd(III)-lipid microbubbles for MRI-guided focused ultrasound surgery. Biomaterials 2011; 33:247-55. [PMID: 21993236 DOI: 10.1016/j.biomaterials.2011.09.026] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2011] [Accepted: 09/06/2011] [Indexed: 12/16/2022]
Abstract
We have synthesized a biomaterial consisting of Gd(III) ions chelated to lipid-coated, size-selected microbubbles for utility in both magnetic resonance and ultrasound imaging. The macrocyclic ligand DOTA-NHS was bound to PE headgroups on the lipid shell of pre-synthesized microbubbles. Gd(III) was then chelated to DOTA on the microbubble shell. The reaction temperature was optimized to increase the rate of Gd(III) chelation while maintaining microbubble stability. ICP-OES analysis of the microbubbles determined a surface density of 7.5 × 10(5) ± 3.0 × 10(5) Gd(III)/μm(2) after chelation at 50 °C. The Gd(III)-bound microbubbles were found to be echogenic in vivo during high-frequency ultrasound imaging of the mouse kidney. The Gd(III)-bound microbubbles also were characterized by magnetic resonance imaging (MRI) at 9.4 T by a spin-echo technique and, surprisingly, both the longitudinal and transverse proton relaxation rates were found to be roughly equal to that of no-Gd(III) control microbubbles and saline. However, the relaxation rates increased significantly, and in a dose-dependent manner, after sonication was used to fragment the Gd(III)-bound microbubbles into non-gas-containing lipid bilayer remnants. The longitudinal (r(1)) and transverse (r(2)) molar relaxivities were 4.0 ± 0.4 and 120 ± 18 mM(-1)s(-1), respectively, based on Gd(III) content. The Gd(III)-bound microbubbles may find application in the measurement of cavitation events during MRI-guided focused ultrasound therapy and to track the biodistribution of shell remnants.
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Affiliation(s)
- Jameel A Feshitan
- Department of Chemical Engineering, Columbia University, NY 10027, USA
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Xu B, Dou H, Tao K, Sun K, Ding J, Shi W, Guo X, Li J, Zhang D, Sun K. "Two-in-one" fabrication of Fe3O4/MePEG-PLA composite nanocapsules as a potential ultrasonic/MRI dual contrast agent. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:12134-12142. [PMID: 21863846 DOI: 10.1021/la202096x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A new method for the fabrication of Fe(3)O(4) nanoparticles enveloped by polymeric nanocapsules is proposed. This method is characterized by combining a double emulsification with the interfacial coprecipitation of iron salts to form Fe(3)O(4)/polymer composite nanocapsules in a single step. To demonstrate the viability of this approach, methoxy poly(ethylene glycol)-poly(lactide) (MePLEG) was chosen as the shell material for Fe(3)O(4)/MePLEG nanocapsules. In addition to the versatility offered for fabricating nanocapsules with different shell materials, the method was found to be convenient for adjusting the magnetite content of the nanocapsules from 0 to 43%. In addition to their confirmed T(2)-weighted magnetic resonance imaging (MRI) enhancement, the resultant composite nanocapsules display much more obvious acoustic responses than MePLEG nanocapsules in an acoustic investigation. Furthermore, the low toxicity of these composite nanocapsules, as confirmed by our study, combined with their magnetic and acoustic properties ensure that these composite nanocapsules have great potential in acting as ultrasonic/MRI dual contrast agents.
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Affiliation(s)
- Bin Xu
- The State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China
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Kateb B, Chiu K, Black KL, Yamamoto V, Khalsa B, Ljubimova JY, Ding H, Patil R, Portilla-Arias JA, Modo M, Moore DF, Farahani K, Okun MS, Prakash N, Neman J, Ahdoot D, Grundfest W, Nikzad S, Heiss JD. Nanoplatforms for constructing new approaches to cancer treatment, imaging, and drug delivery: what should be the policy? Neuroimage 2011; 54 Suppl 1:S106-24. [PMID: 20149882 PMCID: PMC3524337 DOI: 10.1016/j.neuroimage.2010.01.105] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2009] [Revised: 01/22/2010] [Accepted: 01/22/2010] [Indexed: 01/29/2023] Open
Abstract
Nanotechnology is the design and assembly of submicroscopic devices called nanoparticles, which are 1-100 nm in diameter. Nanomedicine is the application of nanotechnology for the diagnosis and treatment of human disease. Disease-specific receptors on the surface of cells provide useful targets for nanoparticles. Because nanoparticles can be engineered from components that (1) recognize disease at the cellular level, (2) are visible on imaging studies, and (3) deliver therapeutic compounds, nanotechnology is well suited for the diagnosis and treatment of a variety of diseases. Nanotechnology will enable earlier detection and treatment of diseases that are best treated in their initial stages, such as cancer. Advances in nanotechnology will also spur the discovery of new methods for delivery of therapeutic compounds, including genes and proteins, to diseased tissue. A myriad of nanostructured drugs with effective site-targeting can be developed by combining a diverse selection of targeting, diagnostic, and therapeutic components. Incorporating immune target specificity with nanostructures introduces a new type of treatment modality, nano-immunochemotherapy, for patients with cancer. In this review, we will discuss the development and potential applications of nanoscale platforms in medical diagnosis and treatment. To impact the care of patients with neurological diseases, advances in nanotechnology will require accelerated translation to the fields of brain mapping, CNS imaging, and nanoneurosurgery. Advances in nanoplatform, nano-imaging, and nano-drug delivery will drive the future development of nanomedicine, personalized medicine, and targeted therapy. We believe that the formation of a science, technology, medicine law-healthcare policy (STML) hub/center, which encourages collaboration among universities, medical centers, US government, industry, patient advocacy groups, charitable foundations, and philanthropists, could significantly facilitate such advancements and contribute to the translation of nanotechnology across medical disciplines.
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Affiliation(s)
- Babak Kateb
- Brain Mapping Foundation, West Hollywood, CA 90046, USA.
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Park JI, Jagadeesan D, Williams R, Oakden W, Chung S, Stanisz GJ, Kumacheva E. Microbubbles loaded with nanoparticles: a route to multiple imaging modalities. ACS NANO 2010; 4:6579-86. [PMID: 20968309 DOI: 10.1021/nn102248g] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
We report a single-step approach to producing small and stable bubbles functionalized with nanoparticles. The strategy includes the following events occurring in sequence: (i) a microfluidic generation of bubbles from a mixture of CO(2) and a minute amount of gases with low solubility in water, in an aqueous solution of a protein, a polysaccharide, and anionic nanoparticles; (ii) rapid dissolution of CO(2) leading to the shrinkage of bubbles and an increase in acidity of the medium in the vicinity of the bubbles; and (iii) co-deposition of the biopolymers and nanoparticles at the bubble-liquid interface. The proposed approach yielded microbubbles with a narrow size distribution, long-term stability, and multiple functions originating from the attachment of metal oxide, metal, or semiconductor nanoparticles onto the bubble surface. We show the potential applications of these bubbles in ultrasound and magnetic resonance imaging.
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Affiliation(s)
- Jai Il Park
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, ON, M5S3H6 Canada
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Seo M, Gorelikov I, Williams R, Matsuura N. Microfluidic assembly of monodisperse, nanoparticle-incorporated perfluorocarbon microbubbles for medical imaging and therapy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:13855-60. [PMID: 20666507 DOI: 10.1021/la102272d] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
New medical imaging contrast agents that permit multiple imaging and therapy applications using a single agent can result in more accurate diagnosis and local treatment of diseased tissue. Solid nanoparticles (NPs) (5-150 nm in size) have emerged as promising imaging and therapy agents, as have micrometer-scale, perfluorocarbon gas-filled microbubbles (MBs) used in patients as intravascular ultrasound contrast agents. We propose that the modular combination of small, solid NPs and larger, highly compressible MBs into a single agent is an effective way to attain the desired complementary and hybrid properties of two very different agents. Presented here is a new strategy for the simple and robust incorporation of various medical NPs with monodisperse MBs based upon the controlled pH-based regulation of the electrostatic attraction between NPs and the MB shell. Using this simple approach, microfluidic-generated, protein-lipid-coated, perfluorobutane MBs (with size control down to 3 microm) were incorporated with silica-coated NPs, including CdSe/ZnS quantum dots, gold nanorods, iron oxide NPs, and Gd-loaded mesoporous silica NPs. The silica interface permits NP inclusion within MBs to be independent of NP composition, morphology, and size. Significantly, the NP-incorporated MBs (NP-MBs) diluted in saline were detectable using low-pressure ultrasound, and the monodisperse MB platform can be produced at high-throughput, sufficient for in vivo usage (10(6) MB/sec). The modular synthesis of a variety of NP-MBs can facilitate flexible, user-defined, multifunctional imaging and therapy agents tailored for specific applications and disease types.
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Affiliation(s)
- Minseok Seo
- Department of Medical Biophysics, University of Toronto, Ontario, Canada M4N 3M5
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Lu R, Tao K, Sun K, Dou H, Xu B. Facile synthesis of magnetic microcapsules by synchronous formation of magnetite nanoparticles. Colloid Polym Sci 2009. [DOI: 10.1007/s00396-009-2165-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Liu ZY, Wang Y, Liang CH, Li XH, Wang GY, Liu HJ, Li Y. In Vitro Labeling of Mesenchymal Stem Cells with Superparamagnetic Iron Oxide by Means of Microbubble-enhanced US Exposure: Initial Experience. Radiology 2009; 253:153-9. [DOI: 10.1148/radiol.2531081974] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Superparamagnetic iron oxide nanoparticle-embedded encapsulated microbubbles as dual contrast agents of magnetic resonance and ultrasound imaging. Biomaterials 2009; 30:3882-90. [PMID: 19395082 DOI: 10.1016/j.biomaterials.2009.03.051] [Citation(s) in RCA: 185] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2009] [Accepted: 03/29/2009] [Indexed: 11/20/2022]
Abstract
An encapsulated microbubble (EMB) of a novel construct is proposed to enhance the magnetic resonance imaging contrast by introducing superparamagnetic iron oxide (SPIO) nanoparticles (mean diameter is 12 nm) into the polymer shell of the microbubble. Such microbubble vesicle has nitrogen gas in the core and its mean diameter is 3.98 microm. An in vitro MR susceptibility experiment using a phantom consisting EMBs has shown that the relationship between the transverse relaxation rate R(2) and the Fe(3)O(4) nanoparticle concentration in the shell (the volume fraction of EMBs is kept constant) can be fitted to a linear function and an exponentially growth function is observed between R(2) and the SPIO-inclusion microbubble concentration. The in vivo MRI experiments also show that the SPIO-inclusion microbubbles have longer contrast-enhancement duration time in rat liver than non-SPIO-inclusion microbubbles. An in vitro ultrasound imaging experiment of SPIO-inclusion microbubbles also shows that they can enhance the ultrasound contrast significantly. Additionally, the interaction between the SPIO-inclusion microbubbles and cells indicates that such microbubble construct can retain the acoustic property under the ultrasound exposure by controlling the SPIO concentration in the shell. Therefore, the proposed SPIO nanoparticle-embedded EMBs potentially can become effective MR susceptibility contrast agents while also can be good US contrast agents.
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