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Mousavi SM, Kalashgrani MY, Javanmardi N, Riazi M, Akmal MH, Rahmanian V, Gholami A, Chiang WH. Recent breakthroughs in graphene quantum dot-enhanced sonodynamic and photodynamic therapy. J Mater Chem B 2024; 12:7041-7062. [PMID: 38946657 DOI: 10.1039/d4tb00767k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Water-soluble graphene quantum dots (GQDs) have recently exhibited considerable potential for diverse biomedical applications owing to their exceptional optical and chemical properties. However, the pronounced heterogeneity in the composition, size, and morphology of GQDs poses challenges for a comprehensive understanding of the intricate correlation between their structural attributes and functional properties. This variability also introduces complexities in scaling the production processes and addressing safety considerations. Light and sound have firmly established their role in clinical applications as pivotal energy sources for minimally invasive therapeutic interventions. Given the limited penetration depth of light, photodynamic therapy (PDT) predominantly targets superficial conditions such as dermatological disorders, head and neck malignancies, ocular ailments, and early-stage esophageal cancer. Conversely, ultrasound-based sonodynamic therapy (SDT) capitalizes on its superior ability to propagate and focus ultrasound within biological tissues, enabling a diverse range of therapeutic applications, including the management of gliomas, breast cancer, hematological tumors, and modulation of the blood-brain barrier (BBB). Considering the advancements in theranostic and precision therapies, reevaluating these conventional energy sources and their associated sensitizers is imperative. This review introduces three prevalent treatment modalities that harness light and sound stimuli: PDT, SDT, and a synergistic approach that integrates PDT and SDT. This study delineated the therapeutic dynamics and contemporary designs of sensitizers tailored to these modalities. By exploring the historical context of the field and elucidating the latest design strategies, this review underscores the pivotal role of GQDs in propelling the evolution of PDT and SDT. This aspires to stimulate researchers to develop "multimodal" therapies integrating both light and sound stimuli.
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Affiliation(s)
- Seyyed Mojtaba Mousavi
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
| | | | - Negar Javanmardi
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Mohsen Riazi
- Biotechnology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Muhammad Hussnain Akmal
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
| | - Vahid Rahmanian
- Department of Mechanical Engineering, Université du Québec à Trois-Rivières, Drummondville, Quebec, J2C 0R5, Canada.
- Centre national intégré du manufacturier intelligent (CNIMI), Université du Québec à Trois-Rivières, Drummondville, QC, Canada
| | - Ahmad Gholami
- Biotechnology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Wei-Hung Chiang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
- Sustainable Electrochemical Energy Development (SEED) Center, National Taiwan University of Science and Technology, Taipei City 10607, Taiwan
- Advanced Manufacturing Research Center, National Taiwan University of Science and Technology, Taipei City 10607, Taiwan
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2
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Fan CH, Tsai CY, Lai CY, Liou YF, Lee JK, Yeh CK. Feasibility of in vitro calcification plaque disruption using ultrasound-induced microbubble inertial cavitation. ULTRASONICS 2024; 138:107238. [PMID: 38183758 DOI: 10.1016/j.ultras.2023.107238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 12/28/2023] [Accepted: 12/28/2023] [Indexed: 01/08/2024]
Abstract
Percutaneous transluminal coronary angioplasty (PTCA) is a clinical method in which plaque-narrowed arteries are widened by inflating an intravascular balloon catheter. However, PTCA remains challenging to apply in calcified plaques since the high pressure required for achieving a therapeutic outcome can result in balloon rupture, vessel rupture, and intimal dissection. To address the problem with PTCA, we hypothesized that a calcified plaque can be disrupted by microbubbles (MBs) inertial cavitation induced by ultrasound (US). This study proposed a columnar US transducer with a novel design to generate inertial cavitation at the lesion site. Experiments were carried out using tubular calcification phantom to mimic calcified plaques. After different parameters of US + MBs treatment (four types of MBs concentration, five types of cycle number, and three types of insonication duration; n = 4 in each group), inflation experiments were performed to examine the efficacy of cavitation for a clinically used balloon catheter. Finally, micro-CT was used to investigate changes in the internal structure of the tubular plaster phantoms. The inflation threshold of the untreated tubular plaster phantoms was > 11 atm, and this was significantly reduced to 7.4 ± 0.7 atm (p = 5.2E-08) using US-induced MBs inertial cavitation at a treatment duration of 20 min with an acoustic pressure of 214 kPa, an MBs concentration of 4.0 × 108 MBs/mL, a cycle number of 100 cycles, and a pulse repetition frequency of 100 Hz. Moreover, micro-CT revealed internal damage in the tubular calcification phantom, demonstrating that US-induced MBs inertial cavitation can effectively disrupt calcified plaques and reduce the inflation threshold of PTCA. The ex vivo histopathology results showed that the endothelium of pig blood vessels remained intact after the treatment. In summary, the results show that US-induced MBs inertial cavitation can markedly reduce the inflation threshold in PTCA without damaging blood vessel endothelia, indicating the potential of the proposed treatment method.
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Affiliation(s)
- Ching-Hsiang Fan
- Department of Biomedical Engineering, National Cheng Kung University, Tainan 701, Taiwan; Medical Device Innovation Center, National Cheng Kung University, Tainan 701, Taiwan
| | - Chieh-Yu Tsai
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Chun-Yen Lai
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Ya-Fu Liou
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Jen-Kuang Lee
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital, Taipei 10617, Taiwan
| | - Chih-Kuang Yeh
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan.
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Lin CW, Fan CH, Yeh CK. The relationship between surface drug distribution of Dox-loaded microbubbles and drug release/cavitation behaviors with ultrasound. ULTRASONICS SONOCHEMISTRY 2024; 102:106728. [PMID: 38103369 PMCID: PMC10765110 DOI: 10.1016/j.ultsonch.2023.106728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 11/23/2023] [Accepted: 12/12/2023] [Indexed: 12/19/2023]
Abstract
Ultrasound (US)-triggered microbubbles (MBs) drug delivery is a promising tool for noninvasive and localized therapy. Several studies have shown the potential of drug-loaded MBs to boost the delivery of therapeutic substances to target tissue effectively. Nevertheless, little is known about the surface payload distribution affecting the cavitation activity and drug release behavior of the drug-loaded MBs. In this study, we designed a common chemodrug (Doxorubicin, Dox)-loaded MB (Dox-MBs) and regulated the payload distribution as uniform or cluster onto the outer surface of MBs. The Dox distribution on the MB shells was assessed by confocal fluorescence microscopic imaging. The acoustic properties of the Dox-MBs with different Dox distributions were evaluated by their acoustic stability and cavitation activities. The payload release and the fragments from Dox-MBs in response to different US parameters were measured and visualized by column chromatography and cryo-electron microscopy, respectively. By amalgamating these methodologies, we found that stable cavitation was sufficient for triggering uniform-loaded MBs to release their payload, but stable cavitation and inertial cavitation were required for cluster-loaded MBs. The released substances included free Dox and Dox-containing micelle/liposome; their portions depended on the payload distribution, acoustic pressure, cycle number, and sonication duration. Furthermore, we also revealed that the Dox-containing micelle/liposome in cluster-loaded MBs had the potential for multiple drug releases upon US sonication. This study compared uniform-loaded MBs and cluster-loaded MBs to enhance our comprehension of drug-loaded MBs mediated drug delivery.
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Affiliation(s)
- Chia-Wei Lin
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Ching-Hsiang Fan
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan; Medical Device Innovation Center, National Cheng Kung University, Tainan, Taiwan
| | - Chih-Kuang Yeh
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan.
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4
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Fernandes DA. Liposomes for Cancer Theranostics. Pharmaceutics 2023; 15:2448. [PMID: 37896208 PMCID: PMC10610083 DOI: 10.3390/pharmaceutics15102448] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/16/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
Cancer is one of the most well-studied diseases and there have been significant advancements over the last few decades in understanding its molecular and cellular mechanisms. Although the current treatments (e.g., chemotherapy, radiotherapy, gene therapy and immunotherapy) have provided complete cancer remission for many patients, cancer still remains one of the most common causes of death in the world. The main reasons for the poor response rates for different cancers include the lack of drug specificity, drug resistance and toxic side effects (i.e., in healthy tissues). For addressing the limitations of conventional cancer treatments, nanotechnology has shown to be an important field for constructing different nanoparticles for destroying cancer cells. Due to their size (i.e., less than 1 μm), nanoparticles can deliver significant amounts of cancer drugs to tumors and are able to carry moieties (e.g., folate, peptides) for targeting specific types of cancer cells (i.e., through receptor-mediated endocytosis). Liposomes, composed of phospholipids and an interior aqueous core, can be used as specialized delivery vehicles as they can load different types of cancer therapy agents (e.g., drugs, photosensitizers, genetic material). In addition, the ability to load imaging agents (e.g., fluorophores, radioisotopes, MRI contrast media) enable these nanoparticles to be used for monitoring the progress of treatment. This review examines a wide variety of different liposomes for cancer theranostics, with the different available treatments (e.g., photothermal, photodynamic) and imaging modalities discussed for different cancers.
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Hu C, Hou B, Xie S. Application of nanosonosensitizer materials in cancer sono-dynamic therapy. RSC Adv 2022; 12:22722-22747. [PMID: 36105955 PMCID: PMC9376763 DOI: 10.1039/d2ra03786f] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 07/26/2022] [Indexed: 11/21/2022] Open
Abstract
Sonodynamic therapy (SDT) is a novel non-invasive treatment for cancer combining low-intensity ultrasound and sonosensitizers.
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Affiliation(s)
- Chaotao Hu
- Department of Hand and Foot Microsurgery, The Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, China
| | - Biao Hou
- Department of Hand and Foot Microsurgery, The Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, China
| | - Songlin Xie
- Department of Hand and Foot Microsurgery, The Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, China
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6
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Lin CW, Fan CH, Yeh CK. The Impact of Surface Drug Distribution on the Acoustic Behavior of DOX-Loaded Microbubbles. Pharmaceutics 2021; 13:pharmaceutics13122080. [PMID: 34959362 PMCID: PMC8703561 DOI: 10.3390/pharmaceutics13122080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/28/2021] [Accepted: 11/30/2021] [Indexed: 11/22/2022] Open
Abstract
Previous studies have reported substantial improvement of microbubble (MB)-mediated drug delivery with ultrasound when drugs are loaded onto the MB shell compared with a physical mixture. However, drug loading may affect shell properties that determine the acoustic responsiveness of MBs, producing unpredictable outcomes. The aim of this study is to reveal how the surface loaded drug (doxorubicin, DOX) affects the acoustic properties of MBs. A suitable formulation of MBs for DOX loading was first identified by regulating the proportion of two lipid materials (1,2-distearoyl-sn-glycero-3-phosphocholine (DSPC) and 1,2-distearoyl-sn-glycero-3-phospho-rac-glycerol sodium salt (DSPG)) with distinct electrostatic properties. We found that the DOX loading capacity of MBs was determined by the proportion of DSPG, since there was an electrostatic interaction with DOX. The DOX payload reduced the lipid fluidity of MBs, although this effect was dependent on the spatial uniformity of DOX on the MB shell surface. Loading DOX onto MBs enhanced acoustic stability 1.5-fold, decreased the resonance frequency from 12–14 MHz to 5–7 MHz, and reduced stable cavitation dose by 1.5-fold, but did not affect the stable cavitation threshold (300 kPa). Our study demonstrated that the DOX reduces lipid fluidity and decreases the elasticity of the MB shell, thereby influencing the acoustic properties of MBs.
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Affiliation(s)
- Chia-Wei Lin
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan;
| | - Ching-Hsiang Fan
- Department of Biomedical Engineering, National Cheng Kung University, Tainan 70101, Taiwan;
- Medical Device Innovation Center, National Cheng Kung University, No. 1, University Road, Tainan 70101, Taiwan
| | - Chih-Kuang Yeh
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan;
- Correspondence:
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Li D, Yang Y, Li D, Pan J, Chu C, Liu G. Organic Sonosensitizers for Sonodynamic Therapy: From Small Molecules and Nanoparticles toward Clinical Development. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2101976. [PMID: 34350690 DOI: 10.1002/smll.202101976] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 05/17/2021] [Indexed: 06/13/2023]
Abstract
Sonodynamic therapy (SDT) is a novel noninvasive therapeutic modality that combines low-intensity ultrasound and sonosensitizers. Versus photo-mediated therapy, SDT has the advantages of deeper tissue penetration, high accuracy, and less side effects. Sonosensitizers are critical for therapeutic efficacy during SDT and organic sonosensitizers are important because of their clear structure, easy monitoring, evaluation of drug metabolism, and clinical transformation. Notably, nanotechnology can be used in the field of sonosensitizers and SDT to overcome the inherent obstacles and achieve sustainable innovation. This review introduces organic small molecule sonosensitizers, nano organic sonosensitizers, and their clinical translation by providing ideas and references for the design of sonosensitizers and SDT so as to promote its transformation to clinical applications in the future.
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Affiliation(s)
- Dong Li
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Yang Yang
- Department of Cardiovascular, Xiang'an Hospital of Xiamen University, Xiamen, 361102, China
| | - Dengfeng Li
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Jie Pan
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Chengchao Chu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine School of Public Health, Xiamen University, Xiamen, 361102, China
- Eye Institute of Xiamen University, Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Engineering Research Center of Eye Regenerative Medicine, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Gang Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine School of Public Health, Xiamen University, Xiamen, 361102, China
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8
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Mou C, Yang Y, Bai Y, Yuan P, Wang Y, Zhang L. Hyaluronic acid and polydopamine functionalized phase change nanoparticles for ultrasound imaging-guided photothermal-chemotherapy. J Mater Chem B 2019; 7:1246-1257. [DOI: 10.1039/c8tb03056a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Hyaluronic acid and polydopamine functionalized phase change nanoparticles for ultrasound imaging-guided photothermal-chemotherapy.
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Affiliation(s)
- Chongyan Mou
- Chongqing Research Center for Pharmaceutical Engineering
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology
- College of Pharmacy
- Chongqing Medical University
- Chongqing 400016
| | - Yang Yang
- Chongqing Key Laboratory of Ultrasound Molecular Imaging
- Institute of Ultrasound Imaging
- Chongqing Medical University
- Chongqing 400016
- P. R. China
| | - Yan Bai
- Chongqing Research Center for Pharmaceutical Engineering
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology
- College of Pharmacy
- Chongqing Medical University
- Chongqing 400016
| | - Pei Yuan
- Chongqing Research Center for Pharmaceutical Engineering
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology
- College of Pharmacy
- Chongqing Medical University
- Chongqing 400016
| | - Yiwu Wang
- Experimental Teaching and Management Center
- Chongqing Medical University
- Chongqing 400016
- P. R. China
| | - Liangke Zhang
- Chongqing Research Center for Pharmaceutical Engineering
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology
- College of Pharmacy
- Chongqing Medical University
- Chongqing 400016
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9
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Yang Y, Qiu Z, Hou X, Sun L. Ultrasonic Characteristics and Cellular Properties of Anabaena Gas Vesicles. ULTRASOUND IN MEDICINE & BIOLOGY 2017; 43:2862-2870. [PMID: 28889941 DOI: 10.1016/j.ultrasmedbio.2017.08.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 07/24/2017] [Accepted: 08/08/2017] [Indexed: 06/07/2023]
Abstract
Ultrasound imaging is a common modality in clinical examination and biomedical research, but has not played a significant role in molecular imaging for lack of an appropriate contrast agent. Recently, biogenic gas vesicles (GVs), naturally formed by cyanobacteria and haloarchaea, have exhibited great potential as an ultrasound molecular imaging probe with a much smaller size (∼100 nm) and improved imaging contrast. However, the basic acoustic and biological properties of GVs remain unclear, which hinders future application. Here, we studied the fundamental acoustic properties of a rod-shaped gas vesicle from Anabaena, a kind of cyanobacterium, including attenuation, oscillation resonance, and scattering, as well as biological behaviors (cellular internalization and cytotoxicity). We found that GVs have two resonance peaks (85 and 120 MHz). We also observed a significant non-linear effect and its pressure dependence as well. Ultrasound B-mode imaging reveals sufficient echogenicity of GVs for ultrasound imaging enhancement at high frequencies. Biological characterization also reveals endocytosis and non-toxicity.
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Affiliation(s)
- Yaoheng Yang
- Interdisciplinary Division of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hong, Hong Kong SA
| | - Zhihai Qiu
- Interdisciplinary Division of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hong, Hong Kong SA
| | - Xuandi Hou
- Interdisciplinary Division of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hong, Hong Kong SA
| | - Lei Sun
- Interdisciplinary Division of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hong, Hong Kong SA.
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10
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Yang J, Wang J, Ta CN, Ward E, Barback CV, Sung TW, Mendez N, Blair SL, Kummel AC, Trogler WC. Ultrasound Responsive Macrophase-Segregated Microcomposite Films for in Vivo Biosensing. ACS APPLIED MATERIALS & INTERFACES 2017; 9:1719-1727. [PMID: 28001041 DOI: 10.1021/acsami.6b10728] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Ultrasound imaging is a safe, low-cost, and in situ method for detecting in vivo medical devices. A poly(methyl-2-cyanoacrylate) film containing 2 μm boron-doped, calcined, porous silica microshells was developed as an ultrasound imaging marker for multiple medical devices. A macrophase separation drove the gas-filled porous silica microshells to the top surface of the polymer film by controlled curing of the cyanoacrylate glue and the amount of microshell loading. A thin film of polymer blocked the wall pores of the microshells to seal air in their hollow core, which served as an ultrasound contrast agent. The ultrasound activity disappeared when curing conditions were modified to prevent the macrophase segregation. Phase segregated films were attached to multiple surgical tools and needles and gave strong color Doppler signals in vitro and in vivo with the use of a clinical ultrasound imaging instrument. Postprocessing of the simultaneous color Doppler and B-mode images can be used for autonomous identification of implanted surgical items by correlating the two images. The thin films were also hydrophobic, thereby extending the lifetime of ultrasound signals to hours of imaging in tissues by preventing liquid penetration. This technology can be used as a coating to guide the placement of implantable medical devices or used to image and help remove retained surgical items.
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Affiliation(s)
- Jian Yang
- Department of Chemistry and Biochemistry, ‡Department of Nanoengineering, §Department of Computer, ∥Department of Surgery, ⊥Department of Radiology, and #Materials Science and Engineering Program, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - James Wang
- Department of Chemistry and Biochemistry, ‡Department of Nanoengineering, §Department of Computer, ∥Department of Surgery, ⊥Department of Radiology, and #Materials Science and Engineering Program, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Casey N Ta
- Department of Chemistry and Biochemistry, ‡Department of Nanoengineering, §Department of Computer, ∥Department of Surgery, ⊥Department of Radiology, and #Materials Science and Engineering Program, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Erin Ward
- Department of Chemistry and Biochemistry, ‡Department of Nanoengineering, §Department of Computer, ∥Department of Surgery, ⊥Department of Radiology, and #Materials Science and Engineering Program, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Christopher V Barback
- Department of Chemistry and Biochemistry, ‡Department of Nanoengineering, §Department of Computer, ∥Department of Surgery, ⊥Department of Radiology, and #Materials Science and Engineering Program, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Tsai-Wen Sung
- Department of Chemistry and Biochemistry, ‡Department of Nanoengineering, §Department of Computer, ∥Department of Surgery, ⊥Department of Radiology, and #Materials Science and Engineering Program, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Natalie Mendez
- Department of Chemistry and Biochemistry, ‡Department of Nanoengineering, §Department of Computer, ∥Department of Surgery, ⊥Department of Radiology, and #Materials Science and Engineering Program, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Sarah L Blair
- Department of Chemistry and Biochemistry, ‡Department of Nanoengineering, §Department of Computer, ∥Department of Surgery, ⊥Department of Radiology, and #Materials Science and Engineering Program, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Andrew C Kummel
- Department of Chemistry and Biochemistry, ‡Department of Nanoengineering, §Department of Computer, ∥Department of Surgery, ⊥Department of Radiology, and #Materials Science and Engineering Program, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - William C Trogler
- Department of Chemistry and Biochemistry, ‡Department of Nanoengineering, §Department of Computer, ∥Department of Surgery, ⊥Department of Radiology, and #Materials Science and Engineering Program, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
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11
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Jin Q, Kang ST, Chang YC, Zheng H, Yeh CK. Inertial cavitation initiated by polytetrafluoroethylene nanoparticles under pulsed ultrasound stimulation. ULTRASONICS SONOCHEMISTRY 2016; 32:1-7. [PMID: 27150739 DOI: 10.1016/j.ultsonch.2016.02.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 02/05/2016] [Accepted: 02/06/2016] [Indexed: 05/07/2023]
Abstract
Nanoscale gas bubbles residing on a macroscale hydrophobic surface have a surprising long lifetime (on the order of days) and can serve as cavitation nuclei for initiating inertial cavitation (IC). Whether interfacial nanobubbles (NBs) reside on the infinite surface of a hydrophobic nanoparticle (NP) and could serve as cavitation nuclei is unknown, but this would be very meaningful for the development of sonosensitive NPs. To address this problem, we investigated the IC activity of polytetrafluoroethylene (PTFE) NPs, which are regarded as benchmark superhydrophobic NPs due to their low surface energy caused by the presence of fluorocarbon. Both a passive cavitation detection system and terephthalic dosimetry was applied to quantify the intensity of IC. The IC intensities of the suspension with PTFE NPs were 10.30 and 48.41 times stronger than those of deionized water for peak negative pressures of 2 and 5MPa, respectively. However, the IC activities were nearly completely inhibited when the suspension was degassed or ethanol was used to suspend PTFE NPs, and they were recovered when suspended in saturated water, which may indicates the presence of interfacial NBs on PTFE NPs surfaces. Importantly, these PTFE NPs could sustainably initiate IC for excitation by a sequence of at least 6000 pulses, whereas lipid microbubbles were completely depleted after the application of no more than 50 pulses under the same conditions. The terephthalic dosimetry has shown that much higher hydroxyl yields were achieved when PTFE NPs were present as cavitation nuclei when using ultrasound parameters that otherwise did not produce significant amounts of free radicals. These results show that superhydrophobic NPs may be an outstanding candidate for use in IC-related applications.
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Affiliation(s)
- Qiaofeng Jin
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Shih-Tsung Kang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Yuan-Chih Chang
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Hairong Zheng
- Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
| | - Chih-Kuang Yeh
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan.
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12
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Huang HY, Lin CAJ, Chang WH, Yeh CK. Template-based formation of ultrasound microbubble contrast agents. RSC Adv 2016. [DOI: 10.1039/c6ra09316g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Precisely controlling microbubble size is critical for medical ultrasound imaging, where large microbubble contrast agents may lead to pulmonary microvascular embolization. Here we introduced a method of preparing uniform microbubbles for ultrasound images.
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Affiliation(s)
- Hsiu-Ying Huang
- Department of Biomedical Engineering
- Chung Yuan Christian University
- Republic of China
- Center for Biomedical Technology
- Chung Yuan Christian University
| | - Cheng-An J. Lin
- Department of Biomedical Engineering
- Chung Yuan Christian University
- Republic of China
- Center for Biomedical Technology
- Chung Yuan Christian University
| | - Walter H. Chang
- Department of Biomedical Engineering
- Chung Yuan Christian University
- Republic of China
- Center for Biomedical Technology
- Chung Yuan Christian University
| | - Chih-Kuang Yeh
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Republic of China
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