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Pan T, Su L, Zhang Y, Xu L, Chen Y. Advances in Bio-Optical Imaging Systems for Spatiotemporal Monitoring of Intestinal Bacteria. Mol Nutr Food Res 2024; 68:e2300760. [PMID: 38491399 DOI: 10.1002/mnfr.202300760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 01/26/2024] [Indexed: 03/18/2024]
Abstract
Vast and complex intestinal communities are regulated and balanced through interactions with their host organisms, and disruption of gut microbial balance can cause a variety of diseases. Studying the mechanisms of pathogenic intestinal flora in the host and early detection of bacterial translocation and colonization can guide clinical diagnosis, provide targeted treatments, and improve patient prognosis. The use of in vivo imaging techniques to track microorganisms in the intestine, and study structural and functional changes of both cells and proteins, may clarify the governing equilibrium between the flora and host. Despite the recent rapid development of in vivo imaging of intestinal microecology, determining the ideal methodology for clinical use remains a challenge. Advances in optics, computer technology, and molecular biology promise to expand the horizons of research and development, thereby providing exciting opportunities to study the spatio-temporal dynamics of gut microbiota and the origins of disease. Here, this study reviews the characteristics and problems associated with optical imaging techniques, including bioluminescence, conventional fluorescence, novel metabolic labeling methods, nanomaterials, intelligently activated imaging agents, and photoacoustic (PA) imaging. It hopes to provide a valuable theoretical basis for future bio-intelligent imaging of intestinal bacteria.
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Affiliation(s)
- Tongtong Pan
- Hepatology Diagnosis and Treatment Center, The First Affiliated Hospital of Wenzhou Medical University & Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseases, Ouhai District, Wenzhou, Zhejiang, 325035, China
| | - Lihuang Su
- The First Affiliated Hospital of Wenzhou Medical University, Ouhai District, Wenzhou, Zhejiang, 325035, China
| | - Yiying Zhang
- Alberta Institute, Wenzhou Medical University, Ouhai District, Wenzhou, Zhejiang, 325035, China
| | - Liang Xu
- Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Yongping Chen
- Hepatology Diagnosis and Treatment Center, The First Affiliated Hospital of Wenzhou Medical University & Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseases, Ouhai District, Wenzhou, Zhejiang, 325035, China
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Xing Y, Jing R, Kang J, Li Y, Zhang H, Tang X, Jiang Z. Carbon-based Nanomaterials in Photothermal Therapy Guided by Photoacoustic Imaging: State of Knowledge and Recent Advances. Curr Med Chem 2024; 31:CMC-EPUB-139364. [PMID: 38529603 DOI: 10.2174/0109298673287448240311112523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 01/14/2024] [Accepted: 01/23/2024] [Indexed: 03/27/2024]
Abstract
Carbon-based nanomaterials (CBNM)have been widely used in various fields due to their excellent physicochemical properties. In particular, in the area of tumor diagnosis and treatment, researchers have frequently reported them for their potential fluorescence, photoacoustic (PA), and ultrasound imaging performance, as well as their photothermal, photodynamic, sonodynamic, and other therapeutic properties. As the functions of CBNM are increasingly developed, their excellent imaging properties and superior tumor treatment effects make them extremely promising theranostic agents. This review aims to integrate the considered and researched information in a specific field of this research topic and systematically present, summarize, and comment on the efforts made by authoritative scholars. In this review, we summarized the work exploring carbon-based materials in the field of tumor imaging and therapy, focusing on PA imaging-guided photothermal therapy (PTT) and discussing their imaging and therapeutic mechanisms and developments. Finally, the current challenges and potential opportunities of carbon-based materials for PA imaging-guided PTT are presented, and issues that researchers should be aware of when studying CBNM are provided.
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Affiliation(s)
- Yan Xing
- Department of Gynecology, The First Affiliated Hospital of Ningbo University, Ningbo, 315010, China
| | - Rui Jing
- School of Medical Technology, Analysis & Testing Center, Beijing Institute of Technology, Beijing 100081, China
| | - Jun Kang
- School of Medical Technology, Analysis & Testing Center, Beijing Institute of Technology, Beijing 100081, China
| | - Yuwen Li
- School of Medical Technology, Analysis & Testing Center, Beijing Institute of Technology, Beijing 100081, China
| | - Hui Zhang
- School of Medical Technology, Analysis & Testing Center, Beijing Institute of Technology, Beijing 100081, China
| | - Xiaoying Tang
- School of Medical Technology, Analysis & Testing Center, Beijing Institute of Technology, Beijing 100081, China
| | - Zhenqi Jiang
- School of Medical Technology, Analysis & Testing Center, Beijing Institute of Technology, Beijing 100081, China
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Xu Z, Locke CS, Morris R, Jamison D, Kozloff KM, Wang X. Development of a semi-anthropomorphic photoacoustic calcaneus phantom based on nano computed tomography and stereolithography 3D printing. J Orthop Res 2024; 42:647-660. [PMID: 37804209 PMCID: PMC10932887 DOI: 10.1002/jor.25702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 06/28/2023] [Accepted: 10/05/2023] [Indexed: 10/09/2023]
Abstract
Osteoporosis is a major public health threat with significant physical, psychosocial, and financial consequences. The calcaneus bone has been used as a measurement site for risk prediction of osteoporosis by noninvasive quantitative ultrasound (QUS). By adding optical contrast to QUS, our previous studies indicate that a combination of photoacoustic (PA) and QUS, that is, PAQUS, provides a novel opportunity to assess the health of human calcaneus. Calibration of the PAQUS system is crucial to realize quantitative and repeatable measurements of the calcaneus. Therefore, a phantom which simulates the optical, ultrasound, and architectural properties of the human calcaneus, for PAQUS system calibration, is required. Additionally, a controllable phantom offers researchers a versatile framework for developing versatile structures, allowing more controlled assessment of how varying bone structures cause defined alterations in PA and QUS signals. In this work, we present the first semi-anthropomorphic calcaneus phantom for PAQUS. The phantom was developed based on nano computed-tomography (nano-CT) and stereolithography 3D printing, aiming to maximize accuracy in the approximation of both trabecular and cortical bone microstructures. Compared with the original digital input calcaneus model from a human cadaveric donor, the printed model achieved accuracies of 71.15% in total structure and 87.21% in bone volume fraction. Inorganic materials including synthetic blood, mineral oil, intralipid, and agar gel were used to model the substitutes of bone marrow and soft tissue, filling and covering the calcaneus phantom. The ultrasound and optical properties of this phantom were measured, and the results were consistent with those measured by a commercialized device and from previous in vivo studies. In addition, a short-term stability test was conducted for this phantom, demonstrating that the optical and ultrasound properties of the phantom were stable without significant variation over 1 month. This semi-anthropomorphic calcaneus phantom shows structural, ultrasound, and optical properties similar to those from a human calcaneus in vivo and, thereby, can serve as an effective source for equipment calibration and the comprehensive study of human patients.
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Affiliation(s)
- Zhanpeng Xu
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Conor S. Locke
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, Michigan 48109, USA
| | | | - DeAndre Jamison
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Kenneth M. Kozloff
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Xueding Wang
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
- Department of Radiology, University of Michigan, Ann Arbor, Michigan 48109, USA
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Li F, Chen L, Zhong S, Chen J, Cao Y, Yu H, Ran H, Yin Y, Reutelingsperger C, Shu S, Ling Z. Collagen-Targeting Self-Assembled Nanoprobes for Multimodal Molecular Imaging and Quantification of Myocardial Fibrosis in a Rat Model of Myocardial Infarction. ACS Nano 2024; 18:4886-4902. [PMID: 38295159 DOI: 10.1021/acsnano.3c09801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
Currently, inadequate early diagnostic methods hinder the prompt treatment of patients with heart failure and myocardial fibrosis. Magnetic resonance imaging is the gold standard noninvasive diagnostic method; however, its effectiveness is constrained by low resolution and challenges posed by certain patients who cannot undergo the procedure. Although enhanced computed tomography (CT) offers high resolution, challenges arise owing to the unclear differentiation between fibrotic and normal myocardial tissue. Furthermore, although echocardiography is real-time and convenient, it lacks the necessary resolution for detecting fibrotic myocardium, thus limiting its value in fibrosis detection. Inspired by the postinfarction accumulation of collagen types I and III, we developed a collagen-targeted multimodal imaging nanoplatform, CNA35-GP@NPs, comprising lipid nanoparticles (NPs), encapsulating gold nanorods (GNRs) and perfluoropentane (PFP). This platform facilitated ultrasound/photoacoustic/CT imaging of postinfarction cardiac fibrosis in a rat model of myocardial infarction (MI). The surface-modified peptide CNA35 exhibited excellent collagen fiber targeting. The strong near-infrared light absorption and substantial X-ray attenuation of the nanoplatform rendered it suitable for photoacoustic and CT imaging. In the rat model of MI, our study demonstrated that CNA35-GNR/PFP@NPs (CNA35-GP@NPs) achieved photoacoustic, ultrasound, and enhanced CT imaging of the fibrotic myocardium. Notably, the photoacoustic signal intensity positively correlated with the severity of myocardial fibrosis. Thus, this study presents a promising approach for accurately detecting and treating the fibrotic myocardium.
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Affiliation(s)
- Fang Li
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Lihua Chen
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Shigeng Zhong
- Department of Ultrasound, Chongqing People's Hospital, Chongqing 400010, P. R. China
| | - Jinhua Chen
- Department of Radiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Yang Cao
- Department of Ultrasound Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Han Yu
- Department of Radiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Haitao Ran
- Department of Ultrasound Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Yuehui Yin
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Chris Reutelingsperger
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Shiyu Shu
- Department of Anesthesiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
| | - Zhiyu Ling
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P. R. China
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Zhang Y, Kang X, Li J, Song J, Li X, Li W, Qi J. Inflammation-Responsive Nanoagents for Activatable Photoacoustic Molecular Imaging and Tandem Therapies in Rheumatoid Arthritis. ACS Nano 2024; 18:2231-2249. [PMID: 38189230 DOI: 10.1021/acsnano.3c09870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Rheumatoid arthritis (RA) severely lowers the life quality by progressively destructing joint functions and eventually causing permanent disability, representing a pressing public health concern. The pathogenesis of RA includes the excessive production of proinflammatory cytokines and harmful oxygen-derived free radicals, such as nitric oxide (NO), which constitute vital targets for precise diagnosis and effective treatment of RA. In this study, we introduce an advanced nanoagent that integrates the RA microenvironment-activatable photoacoustic (PA) imaging with multitarget synergistic treatment for RA. A highly sensitive organic probe with NO-tunable energy transformation and molecular geometry is developed, which enables strong near-infrared absorption with a turn-on PA signal, and the active intramolecular motion could further boost PA conversion. The probe is coassembled with an inflammation-responsive prodrug to construct the theranostic nanoagent, on which a macrophage-derived cell membrane with natural tropism to the inflammatory sites is camouflaged to improve the targeting ability to inflamed joints. The nanoagent could not only sensitively detect RA and differentiate the severity but also efficiently alleviate RA symptoms and improve joint function. The combination of activatable probe-mediated NO scavenging and on-demand activation of anti-inflammatory prodrug significantly inhibits the proinflammatory factors and promotes macrophage repolarization from M1 to M2 phenotype. This meticulously designed nanoagent ingeniously integrates RA-specific PA molecular imaging with synergistic multitarget therapy, rendering tremendous promise for precise intervention of RA-related diseases.
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Affiliation(s)
- Yuan Zhang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, Frontiers Science Center for Cell Responses, and College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Xiaoying Kang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, Frontiers Science Center for Cell Responses, and College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Jia Li
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, Frontiers Science Center for Cell Responses, and College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Jianwen Song
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, Frontiers Science Center for Cell Responses, and College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Xueping Li
- Tianjin Key Laboratory of Biomedical Materials and Key Laboratory of Biomaterials and Nanotechnology for Cancer Immunotherapy, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Wen Li
- Tianjin Key Laboratory of Biomedical Materials and Key Laboratory of Biomaterials and Nanotechnology for Cancer Immunotherapy, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Ji Qi
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, Frontiers Science Center for Cell Responses, and College of Life Sciences, Nankai University, Tianjin 300071, China
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Wang G, Zhou Y, Yu C, Yang Q, Chen L, Ling S, Chen P, Xing J, Wu H, Zhao Q. Intravital photoacoustic brain stimulation with high-precision. J Biomed Opt 2024; 29:S11520. [PMID: 38333219 PMCID: PMC10851606 DOI: 10.1117/1.jbo.29.s1.s11520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 01/02/2024] [Accepted: 01/04/2024] [Indexed: 02/10/2024]
Abstract
Significance Neural regulation at high precision vitally contributes to propelling fundamental understanding in the field of neuroscience and providing innovative clinical treatment options. Recently, photoacoustic brain stimulation has emerged as a cutting-edge method for precise neuromodulation and shows great potential for clinical application. Aim The goal of this perspective is to outline the advancements in photoacoustic brain stimulation in recent years. And, we also provide an outlook delineating several prospective paths through which this burgeoning approach may be substantively refined for augmented capability and wider implementations. Approach First, the mechanisms of photoacoustic generation as well as the potential mechanisms of photoacoustic brain stimulation are provided and discussed. Then, the state-of-the-art achievements corresponding to this technology are reviewed. Finally, future directions for photoacoustic technology in neuromodulation are provided. Results Intensive research endeavors have prompted substantial advancements in photoacoustic brain stimulation, illuminating the unique advantages of this modality for noninvasive and high-precision neuromodulation via a nongenetic way. It is envisaged that further technology optimization and randomized prospective clinical trials will enable a wide acceptance of photoacoustic brain stimulation in clinical practice. Conclusions The innovative practice of photoacoustic technology serves as a multifaceted neuromodulation approach, possessing noninvasive, high-accuracy, and nongenetic characteristics. It has a great potential that could considerably enhance not only the fundamental underpinnings of neuroscience research but also its practical implementations in a clinical setting.
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Affiliation(s)
- Guangxing Wang
- Xiamen University, School of Public Health, Center for Molecular Imaging and Translational Medicine, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province, State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, China
- Xiamen University, National Innovation Platform for Industry-Education Integration in Vaccine Research, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Xiamen, China
| | - Yuying Zhou
- Xiamen University, School of Public Health, Center for Molecular Imaging and Translational Medicine, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province, State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, China
- Xiamen University, National Innovation Platform for Industry-Education Integration in Vaccine Research, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Xiamen, China
| | - Chunhui Yu
- Xiamen University, School of Public Health, Center for Molecular Imaging and Translational Medicine, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province, State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, China
- Xiamen University, National Innovation Platform for Industry-Education Integration in Vaccine Research, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Xiamen, China
| | - Qiong Yang
- Xiamen University, School of Public Health, Center for Molecular Imaging and Translational Medicine, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province, State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, China
- Xiamen University, National Innovation Platform for Industry-Education Integration in Vaccine Research, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Xiamen, China
| | - Lin Chen
- Xiamen University, School of Public Health, Center for Molecular Imaging and Translational Medicine, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province, State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, China
- Xiamen University, National Innovation Platform for Industry-Education Integration in Vaccine Research, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Xiamen, China
| | - Shuting Ling
- Xiamen University, School of Public Health, Center for Molecular Imaging and Translational Medicine, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province, State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, China
- Xiamen University, National Innovation Platform for Industry-Education Integration in Vaccine Research, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Xiamen, China
| | - Pengyu Chen
- Xiamen University, School of Public Health, Center for Molecular Imaging and Translational Medicine, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province, State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, China
- Xiamen University, National Innovation Platform for Industry-Education Integration in Vaccine Research, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Xiamen, China
| | - Jiwei Xing
- Xiamen University, School of Public Health, Center for Molecular Imaging and Translational Medicine, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province, State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, China
- Xiamen University, National Innovation Platform for Industry-Education Integration in Vaccine Research, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Xiamen, China
| | - Huiling Wu
- Xiamen University, School of Public Health, Center for Molecular Imaging and Translational Medicine, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province, State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, China
- Xiamen University, National Innovation Platform for Industry-Education Integration in Vaccine Research, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Xiamen, China
| | - Qingliang Zhao
- Xiamen University, School of Public Health, Center for Molecular Imaging and Translational Medicine, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province, State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Xiamen, China
- Xiamen University, National Innovation Platform for Industry-Education Integration in Vaccine Research, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Xiamen, China
- Shenzhen Research Institute of Xiamen University, Shenzhen, China
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Oh D, Kim H, Sung M, Kim C. Video-rate endocavity photoacoustic/harmonic ultrasound imaging with miniaturized light delivery. J Biomed Opt 2024; 29:S11528. [PMID: 38505737 PMCID: PMC10949014 DOI: 10.1117/1.jbo.29.s1.s11528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/02/2024] [Accepted: 02/28/2024] [Indexed: 03/21/2024]
Abstract
Significance Endocavity ultrasound (US) imaging is a frequently employed diagnostic technique in gynecology and urology for the assessment of male and female genital diseases that present challenges for conventional transabdominal imaging. The integration of photoacoustic (PA) imaging with clinical US imaging has displayed promising outcomes in clinical research. Nonetheless, its application has been constrained due to size limitations, restricting it to spatially confined locations such as vaginal or rectal canals. Aim This study presents the development of a video-rate (20 Hz) endocavity PA/harmonic US imaging (EPAUSI) system. Approach The approach incorporates a commercially available endocavity US probe with a miniaturized laser delivery unit, comprised of a single large-core fiber and a line beamshaping engineered diffuser. The system facilitates real-time image display and subsequent processing, including angular energy density correction and spectral unmixing, in offline mode. Results The spatial resolutions of the concurrently acquired PA and harmonic US images were measured at 318 μ m and 291 μ m in the radial direction, respectively, and 1.22 deg and 1.50 deg in the angular direction, respectively. Furthermore, the system demonstrated its capability in multispectral PA imaging by successfully distinguishing two clinical dyes in a tissue-mimicking phantom. Its rapid temporal resolution enabled the capture of kinetic dye perfusion into an ex vivo porcine ovary through the depth of porcine uterine tissue. EPAUSI proved its clinical viability by detecting pulsating hemodynamics in the male rat's prostate in vivo and accurately classifying human blood vessels into arteries and veins based on sO 2 measurements. Conclusions Our proposed EPAUSI system holds the potential to unveil previously overlooked indicators of vascular alterations in genital cancers or endometriosis, addressing pressing requirements in the fields of gynecology and urology.
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Affiliation(s)
- Donghyeon Oh
- Pohang University of Science and Technology, Medical Device Innovation Center, Departments of Electrical Engineering, Convergence IT Engineering, Mechanical Engineering, Medical Science and Engineering, Pohang, Republic of Korea
| | - Hyunhee Kim
- Pohang University of Science and Technology, Medical Device Innovation Center, Departments of Electrical Engineering, Convergence IT Engineering, Mechanical Engineering, Medical Science and Engineering, Pohang, Republic of Korea
| | - Minsik Sung
- Pohang University of Science and Technology, Medical Device Innovation Center, Departments of Electrical Engineering, Convergence IT Engineering, Mechanical Engineering, Medical Science and Engineering, Pohang, Republic of Korea
| | - Chulhong Kim
- Pohang University of Science and Technology, Medical Device Innovation Center, Departments of Electrical Engineering, Convergence IT Engineering, Mechanical Engineering, Medical Science and Engineering, Pohang, Republic of Korea
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Jacques SL. Honoring Lihong V. Wang, a pioneer in biomedical optics. J Biomed Opt 2024; 29:S11501. [PMID: 38094083 PMCID: PMC10716686 DOI: 10.1117/1.jbo.29.s1.s11501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 09/29/2023] [Indexed: 12/18/2023]
Abstract
A pioneer in optics based on his development of novel optical imaging techniques and acknowledged by a long list of honors, Lihong V. Wang is a model for the aspiring young student or investigator pursuing a career in the rapidly expanding field of biomedical optics and biophotonics.
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Affiliation(s)
- Steven L. Jacques
- University of Washington, Department of Bioengineering, Seattle, Washington, United States
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9
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Yang F, Chen W, Chen Z. Photoacoustic micro-viscoelastography for mapping mechanocellular properties. J Biophotonics 2024; 17:e202300262. [PMID: 37738101 DOI: 10.1002/jbio.202300262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/22/2023] [Accepted: 09/19/2023] [Indexed: 09/24/2023]
Abstract
Cellular biomechanical properties provide essential insights into biological functions regarding health and disease. Current measurements of the biomechanical properties of cells require physical contact with cells or pre-loading on the cells. Here, we have developed photoacoustic micro-viscoelastography (PAMVE), which utilizes the phase characteristics of photoacoustic (PA) response, for mapping mechanocellular properties in a load-free manner. PAMVE realizes the local viscoelasticity measurement on the macrophages and red blood cells with micrometer scale. Furthermore, PAMVE can successfully identify the adipose cell and skeletal muscle cell due to the difference in their composition-related biomechanical properties. PAMVE represents an irreplaceable option for interrogating characteristic mechanocellular properties, opening the possibility of studying cellular mechanobiology and pathophysiology.
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Affiliation(s)
- Fen Yang
- Department of Biomedical Engineering, Guangdong Provincial Key Laboratory of Advanced Biomaterials, Southern University of Science and Technology, Shenzhen, Guangdong, China
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Wei Chen
- Department of Biomedical Engineering, Guangdong Provincial Key Laboratory of Advanced Biomaterials, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Zhongjiang Chen
- School of Medical Technology and Engineering, Fujian Medical University, Fuzhou, China
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Li T, Chang TS, Shirazi A, Wu X, Lin WK, Zhang R, Guo JL, Oldham KR, Wang TD. Scaling down the dimensions of a Fabry-Perot polymer film acoustic sensor for photoacoustic endoscopy. J Biomed Opt 2024; 29:S11514. [PMID: 38169937 PMCID: PMC10760494 DOI: 10.1117/1.jbo.29.s1.s11514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/17/2023] [Accepted: 12/06/2023] [Indexed: 01/05/2024]
Abstract
Significance A Fabry-Perot (FP) polymer film sensor can be used to detect acoustic waves in a photoacoustic endoscope (PAE) if the dimensions can be adequately scaled down in size. Current FP sensors have limitations in size, sensitivity, and array configurability. Aim We aim to characterize and demonstrate the imaging performance of a miniature FP sensor to evaluate the effects of reduced size and finite dimensions. Approach A transfer matrix model was developed to characterize the frequency response of a multilayer miniature FP sensor. An analytical model was derived to describe the effects of a substrate with finite thickness. Finite-element analysis was performed to characterize the temporal response of a sensor with finite dimensions. Miniature 2 × 2 mm 2 FP sensors were designed and fabricated using gold films as reflective mirrors on either side of a parylene C film deposited on a glass wafer. A single-wavelength laser was used to interrogate the sensor using illumination delivered by fiber subprobes. Imaging phantoms were used to verify FP sensor performance, and in vivo images of blood vessels were collected from a live mouse. Results The finite thickness substrate of the FP sensor resulted in echoes in the time domain signal that could be removed by back filtering. The substrate acted as a filter in the frequency domain. The finite lateral sensor dimensions produced side waves that could be eliminated by surface averaging using an interrogation beam with adequate diameter. The fabricated FP sensor produced a noise-equivalent pressure = 0.76 kPa, bandwidth of 16.6 MHz, a spectral full-width at-half-maximum = 0.2886 nm, and quality factor Q = 2694 . Photoacoustic images were collected from phantoms and blood vessels in a live mouse. Conclusions A miniature wafer-based FP sensor design has been demonstrated with scaled down form factor for future use in PAE.
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Affiliation(s)
- Tong Li
- University of Michigan, Department of Mechanical Engineering, Ann Arbor, Michigan, United States
| | - Tse-Shao Chang
- University of Michigan, Department of Mechanical Engineering, Ann Arbor, Michigan, United States
| | - Ahmad Shirazi
- University of Michigan, Division of Integrative Systems and Design, Ann Arbor, Michigan, United States
| | - Xiaoli Wu
- University of Michigan, Department of Internal Medicine, Division of Gastroenterology, Ann Arbor, Michigan, United States
| | - Wei-Kuan Lin
- University of Michigan, Department of Electrical and Computer Engineering, Ann Arbor, Michigan, United States
| | - Ruoliu Zhang
- University of Michigan, Department of Biomedical Engineering, Ann Arbor, Michigan, United States
| | - Jay L. Guo
- University of Michigan, Department of Mechanical Engineering, Ann Arbor, Michigan, United States
- University of Michigan, Department of Electrical and Computer Engineering, Ann Arbor, Michigan, United States
- University of Michigan, Department of Macromolecular Science and Engineering, Ann Arbor, Michigan, United States
- University of Michigan, Department of Applied Physics, Ann Arbor, Michigan, United States
| | - Kenn R. Oldham
- University of Michigan, Department of Mechanical Engineering, Ann Arbor, Michigan, United States
| | - Thomas D. Wang
- University of Michigan, Department of Mechanical Engineering, Ann Arbor, Michigan, United States
- University of Michigan, Department of Internal Medicine, Division of Gastroenterology, Ann Arbor, Michigan, United States
- University of Michigan, Department of Biomedical Engineering, Ann Arbor, Michigan, United States
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11
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Hirasawa T, Tachi K, Ishikawa T, Miyashita M, Ito K, Ishihara M. Photoacoustic microscopy for real-time monitoring of near-infrared optical absorbers inside biological tissue. J Biomed Opt 2024; 29:S11527. [PMID: 38464883 PMCID: PMC10924425 DOI: 10.1117/1.jbo.29.s1.s11527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 02/09/2024] [Accepted: 02/13/2024] [Indexed: 03/12/2024]
Abstract
Significance We developed a high-speed optical-resolution photoacoustic microscopy (OR-PAM) system using a high-repetition-rate supercontinuum (SC) light source and a two-axes Galvano scanner. The OR-PAM system enabled real-time imaging of optical absorbers inside biological tissues with excellent excitation wavelength tunability. Aim In the near-infrared (NIR) wavelength range, high-speed OR-PAM faces limitations due to the lack of wavelength-tunable light sources. Our study aimed to enable high-speed OR-PAM imaging of various optical absorbers, including NIR contrast agents, and validate the performance of high-speed OR-PAM in the detection of circulating tumor cells (CTCs). Approach A high-repetition nanosecond pulsed SC light source was used for OR-PAM. The excitation wavelength was adjusted by bandpass filtering of broadband light pulses produced by an SC light source. Phantom and in vivo experiments were performed to detect tumor cells stained with an NIR contrast agent within flowing blood samples. Results The newly developed high-speed OR-PAM successfully detected stained cells both in the phantom and in vivo. The phantom experiment confirmed the correlation between the tumor cell detection rate and tumor cell concentration in the blood sample. Conclusions The high-speed OR-PAM effectively detected stained tumor cells. Combining high-speed OR-PAM with molecular probes that stain tumor cells in vivo enables in vivo CTC detection.
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Affiliation(s)
- Takeshi Hirasawa
- National Defense Medical College, Department of Medical Engineering, Tokorozawa, Japan
| | - Kazuyoshi Tachi
- National Defense Medical College, Department of Medical Engineering, Tokorozawa, Japan
- National Defense Medical College, Department of Urology, Tokorozawa, Japan
| | - Tomohiro Ishikawa
- National Defense Medical College, Department of Medical Engineering, Tokorozawa, Japan
| | - Manami Miyashita
- National Defense Medical College, Department of Medical Engineering, Tokorozawa, Japan
| | - Keiichi Ito
- National Defense Medical College, Department of Urology, Tokorozawa, Japan
| | - Miya Ishihara
- National Defense Medical College, Department of Medical Engineering, Tokorozawa, Japan
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12
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Huang C, Cheng Y, Zheng W, Bing RW, Zhang H, Komornicki I, Harris LM, Arany PR, Chakraborty S, Zhou Q, Xu W, Xia J. Dual-Scan Photoacoustic Tomography for the Imaging of Vascular Structure on Foot. IEEE Trans Ultrason Ferroelectr Freq Control 2023; 70:1703-1713. [PMID: 37276111 PMCID: PMC10809222 DOI: 10.1109/tuffc.2023.3283139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Chronic leg ulcers are affecting approximately 6.5 million Americans, and they are associated with significant mortality, reduced quality of life, and high treatment costs. Since many chronic ulcers have underlying vascular insufficiency, accurate assessment of tissue perfusion is critical to treatment planning and monitoring. This study introduces a dual-scan photoacoustic (PA) tomography (PAT) system that can simultaneously image the dorsal and plantar sides of the foot to reduce imaging time. To account for the unique shape of the foot, the system employs height-adjustable and articulating baseball stages that can scan along the foot's contour. In vivo results from healthy volunteers demonstrate the system's ability to acquire clear images of foot vasculature, and results from patients indicate that the system can image patients with various ulcer conditions. We also investigated various PA features and examined their correlation with the foot condition. Our preliminary results indicate that vessel sharpness, occupancy, intensity, and density could all be used to assess tissue perfusion. This research demonstrated the potential of PAT for routine clinical tissue perfusion assessment.
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13
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Tserevelakis GJ, Theocharis A, Spyropoulou S, Trantas E, Goumas D, Ververidis F, Zacharakis G. Hybrid Autofluorescence and Optoacoustic Microscopy for the Label-Free, Early and Rapid Detection of Pathogenic Infections in Vegetative Tissues. J Imaging 2023; 9:176. [PMID: 37754940 PMCID: PMC10532063 DOI: 10.3390/jimaging9090176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 08/25/2023] [Accepted: 08/28/2023] [Indexed: 09/28/2023] Open
Abstract
Agriculture plays a pivotal role in food security and food security is challenged by pests and pathogens. Due to these challenges, the yields and quality of agricultural production are reduced and, in response, restrictions in the trade of plant products are applied. Governments have collaborated to establish robust phytosanitary measures, promote disease surveillance, and invest in research and development to mitigate the impact on food security. Classic as well as modernized tools for disease diagnosis and pathogen surveillance do exist, but most of these are time-consuming, laborious, or are less sensitive. To that end, we propose the innovative application of a hybrid imaging approach through the combination of confocal fluorescence and optoacoustic imaging microscopy. This has allowed us to non-destructively detect the physiological changes that occur in plant tissues as a result of a pathogen-induced interaction well before visual symptoms occur. When broccoli leaves were artificially infected with Xanthomonas campestris pv. campestris (Xcc), eventually causing an economically important bacterial disease, the induced optical absorption alterations could be detected at very early stages of infection. Therefore, this innovative microscopy approach was positively utilized to detect the disease caused by a plant pathogen, showing that it can also be employed to detect quarantine pathogens such as Xylella fastidiosa.
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Affiliation(s)
- George J. Tserevelakis
- Foundation for Research and Technology Hellas, Institute of Electronic Structure and Laser, N. Plastira 100, GR-70013 Heraklion, Crete, Greece; (G.J.T.); (S.S.)
| | - Andreas Theocharis
- Department of Agriculture, School of Agricultural Sciences, Hellenic Mediterranean University, Estavromenos, GR-71410 Heraklion, Crete, Greece; (A.T.); (E.T.); (D.G.)
| | - Stavroula Spyropoulou
- Foundation for Research and Technology Hellas, Institute of Electronic Structure and Laser, N. Plastira 100, GR-70013 Heraklion, Crete, Greece; (G.J.T.); (S.S.)
| | - Emmanouil Trantas
- Department of Agriculture, School of Agricultural Sciences, Hellenic Mediterranean University, Estavromenos, GR-71410 Heraklion, Crete, Greece; (A.T.); (E.T.); (D.G.)
- Institute of Agri-Food and Life Sciences, University Research Centre, Hellenic Mediterranean University, GR-71410 Heraklion, Crete, Greece
| | - Dimitrios Goumas
- Department of Agriculture, School of Agricultural Sciences, Hellenic Mediterranean University, Estavromenos, GR-71410 Heraklion, Crete, Greece; (A.T.); (E.T.); (D.G.)
- Institute of Agri-Food and Life Sciences, University Research Centre, Hellenic Mediterranean University, GR-71410 Heraklion, Crete, Greece
| | - Filippos Ververidis
- Department of Agriculture, School of Agricultural Sciences, Hellenic Mediterranean University, Estavromenos, GR-71410 Heraklion, Crete, Greece; (A.T.); (E.T.); (D.G.)
- Institute of Agri-Food and Life Sciences, University Research Centre, Hellenic Mediterranean University, GR-71410 Heraklion, Crete, Greece
| | - Giannis Zacharakis
- Foundation for Research and Technology Hellas, Institute of Electronic Structure and Laser, N. Plastira 100, GR-70013 Heraklion, Crete, Greece; (G.J.T.); (S.S.)
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14
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Mammari N, Duval RE. Photothermal/ Photoacoustic Therapy Combined with Metal-Based Nanomaterials for the Treatment of Microbial Infections. Microorganisms 2023; 11:2084. [PMID: 37630644 PMCID: PMC10458754 DOI: 10.3390/microorganisms11082084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/02/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
The increased spread and persistence of bacterial drug-resistant phenotypes remains a public health concern and has contributed significantly to the challenge of combating antibiotic resistance. Nanotechnology is considered an encouraging strategy in the fight against antibiotic-resistant bacterial infections; this new strategy should improve therapeutic efficacy and minimize side effects. Evidence has shown that various nanomaterials with antibacterial performance, such as metal-based nanoparticles (i.e., silver, gold, copper, and zinc oxide) have intrinsic antibacterial properties. These antibacterial agents, such as those made of metal oxides, carbon nanomaterials, and polymers, have been used not only to improve antibacterial efficacy but also to reduce bacterial drug resistance due to their interaction with bacteria and their photophysical properties. These nanostructures have been used as effective agents for photothermal therapy (PTT) and photodynamic therapy (PDT) to kill bacteria locally by heating or the controlled production of reactive oxygen species. Additionally, PTT or PDT therapies have also been combined with photoacoustic (PA) imaging to simultaneously improve treatment efficacy, safety, and accuracy. In this present review, we present, on the one hand, a summary of research highlighting the use of PTT-sensitive metallic nanomaterials for the treatment of bacterial and fungal infections, and, on the other hand, an overview of studies showing the PA-mediated theranostic functionality of metal-based nanomaterials.
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Affiliation(s)
- Nour Mammari
- Université de Lorraine, CNRS, L2CM, F-54000 Nancy, France
| | - Raphaël E. Duval
- Université de Lorraine, CNRS, L2CM, F-54000 Nancy, France
- ABC Platform®, F-54505 Vandœuvre-lès-Nancy, France
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15
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Dunn B, Hanafi M, Hummel J, Cressman JR, Veneziano R, Chitnis PV. NIR-II Nanoprobes: A Review of Components-Based Approaches to Next-Generation Bioimaging Probes. Bioengineering (Basel) 2023; 10:954. [PMID: 37627839 PMCID: PMC10451329 DOI: 10.3390/bioengineering10080954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/05/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Fluorescence and photoacoustic imaging techniques offer valuable insights into cell- and tissue-level processes. However, these optical imaging modalities are limited by scattering and absorption in tissue, resulting in the low-depth penetration of imaging. Contrast-enhanced imaging in the near-infrared window improves imaging penetration by taking advantage of reduced autofluorescence and scattering effects. Current contrast agents for fluorescence and photoacoustic imaging face several limitations from photostability and targeting specificity, highlighting the need for a novel imaging probe development. This review covers a broad range of near-infrared fluorescent and photoacoustic contrast agents, including organic dyes, polymers, and metallic nanostructures, focusing on their optical properties and applications in cellular and animal imaging. Similarly, we explore encapsulation and functionalization technologies toward building targeted, nanoscale imaging probes. Bioimaging applications such as angiography, tumor imaging, and the tracking of specific cell types are discussed. This review sheds light on recent advancements in fluorescent and photoacoustic nanoprobes in the near-infrared window. It serves as a valuable resource for researchers working in fields of biomedical imaging and nanotechnology, facilitating the development of innovative nanoprobes for improved diagnostic approaches in preclinical healthcare.
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Affiliation(s)
- Bryce Dunn
- Department of Bioengineering, George Mason University, Fairfax, VA 22030, USA (R.V.)
| | - Marzieh Hanafi
- Department of Bioengineering, George Mason University, Fairfax, VA 22030, USA (R.V.)
| | - John Hummel
- Department of Physics, George Mason University, Fairfax, VA 22030, USA
| | - John R. Cressman
- Department of Physics, George Mason University, Fairfax, VA 22030, USA
| | - Rémi Veneziano
- Department of Bioengineering, George Mason University, Fairfax, VA 22030, USA (R.V.)
| | - Parag V. Chitnis
- Department of Bioengineering, George Mason University, Fairfax, VA 22030, USA (R.V.)
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16
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Zhao AX, Zhu YI, Chung E, Lee J, Morais S, Yoon H, Emelianov S. Factors Influencing the Repeated Transient Optical Droplet Vaporization Threshold and Lifetimes of Phase Change, Perfluorocarbon Nanodroplets. Nanomaterials (Basel) 2023; 13:2238. [PMID: 37570555 PMCID: PMC10421047 DOI: 10.3390/nano13152238] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023]
Abstract
Perfluorocarbon nanodroplets (PFCnDs) are sub-micrometer emulsions composed of a surfactant-encased perfluorocarbon (PFC) liquid and can be formulated to transiently vaporize through optical stimulation. However, the factors governing repeated optical droplet vaporization (ODV) have not been investigated. In this study, we employ high-frame-rate ultrasound (US) to characterize the ODV thresholds of various formulations and imaging parameters and identify those that exhibit low vaporization thresholds and repeatable vaporization. We observe a phenomenon termed "preconditioning", where initial laser pulses generate reduced US contrast that appears linked with an increase in nanodroplet size. Variation in laser pulse repetition frequency is found not to change the vaporization threshold, suggesting that "preconditioning" is not related to residual heat. Surfactants (bovine serum albumin, lipids, and zonyl) impact the vaporization threshold and imaging lifetime, with lipid shells demonstrating the best performance with relatively low thresholds (21.6 ± 3.7 mJ/cm2) and long lifetimes (t1/2 = 104 ± 21.5 pulses at 75 mJ/cm2). Physiological stiffness does not affect the ODV threshold and may enhance nanodroplet stability. Furthermore, PFC critical temperatures are found to correlate with vaporization thresholds. These observations enhance our understanding of ODV behavior and pave the way for improved nanodroplet performance in biomedical applications.
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Affiliation(s)
- Andrew X. Zhao
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Emory University School of Medicine, Atlanta, GA 30332, USA;
| | - Yiying I. Zhu
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA (E.C.); (J.L.); (S.M.)
| | - Euisuk Chung
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA (E.C.); (J.L.); (S.M.)
| | - Jeehyun Lee
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA (E.C.); (J.L.); (S.M.)
| | - Samuel Morais
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA (E.C.); (J.L.); (S.M.)
| | - Heechul Yoon
- School of Electronics and Electrical Engineering, Dankook University, Yongin-si 16890, Republic of Korea;
| | - Stanislav Emelianov
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Emory University School of Medicine, Atlanta, GA 30332, USA;
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA (E.C.); (J.L.); (S.M.)
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17
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Kilian HI, Zhang H, Shiraz Bhurwani MM, Nilam AM, Seong D, Jeon M, Ionita CN, Xia J, Lovell JF. Barium sulfate and pigment admixture for photoacoustic and x-ray contrast imaging of the gut. J Biomed Opt 2023; 28:082803. [PMID: 36776721 PMCID: PMC9917716 DOI: 10.1117/1.jbo.28.8.082803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 01/13/2023] [Indexed: 06/18/2023]
Abstract
Significance X-ray imaging is frequently used for gastrointestinal imaging. Photoacoustic imaging (PAI) of the gastrointestinal tract is an emerging approach that has been demonstrated for preclinical imaging of small animals. A contrast agent active in both modalities could be useful for imaging applications. Aim We aimed to develop a dual-modality contrast agent comprising an admixture of barium sulfate with pigments that absorb light in the second near-infrared region (NIR-II), for preclinical imaging with both x-ray and PAI modalities. Approach Eleven different NIR-II dyes were evaluated after admixture with a 40% w/v barium sulfate mixture. The resulting NIR-II absorption in the soluble fraction and in the total mixture was characterized. Proof-of-principle imaging studies in mice were carried out. Results Pigments that produced more uniform suspensions were assessed further for photoacoustic contrast signal at a wavelength of 1064 nm that corresponds to the output of the Nd:YAG laser used. Phantom imaging studies demonstrated that the pigment-barium sulfate mixture generated imaging contrast in both x-ray and PAI modalities. The optimal pigment selected for further study was a cyanine tetrafluoroborate salt. Ex-vivo and whole-body mouse imaging demonstrated that photoacoustic and x-ray contrast signals co-localized in the intestines for both imaging modalities. Conclusion These data demonstrate that commercially-available NIR-II pigments can simply be admixed with barium sulfate to generate a dual-modality contrast agent appropriate for small animal gastrointestinal imaging.
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Affiliation(s)
- Hailey I Kilian
- University at Buffalo, State University of New York, Department of Biomedical Engineering, Buffalo, New York, United States
| | - Huijuan Zhang
- University at Buffalo, State University of New York, Department of Biomedical Engineering, Buffalo, New York, United States
| | - Mohammad Mahdi Shiraz Bhurwani
- University at Buffalo, State University of New York, Department of Biomedical Engineering, Buffalo, New York, United States
- Canon Stroke and Vascular Research Center, Buffalo, New York, United States
| | - Anoop M Nilam
- University at Buffalo, State University of New York, Department of Biomedical Engineering, Buffalo, New York, United States
| | - Daewoon Seong
- Kyungpook National University, College of IT Engineering, School of Electronic and Electrical Engineering, Daegu, Republic of Korea
| | - Mansik Jeon
- Kyungpook National University, College of IT Engineering, School of Electronic and Electrical Engineering, Daegu, Republic of Korea
| | - Ciprian N Ionita
- University at Buffalo, State University of New York, Department of Biomedical Engineering, Buffalo, New York, United States
- Canon Stroke and Vascular Research Center, Buffalo, New York, United States
| | - Jun Xia
- University at Buffalo, State University of New York, Department of Biomedical Engineering, Buffalo, New York, United States
| | - Jonathan F Lovell
- University at Buffalo, State University of New York, Department of Biomedical Engineering, Buffalo, New York, United States
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18
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Christie LB, Zheng W, Johnson W, Marecki EK, Heidrich J, Xia J, Oh KW. Review of imaging test phantoms. J Biomed Opt 2023; 28:080903. [PMID: 37614568 PMCID: PMC10442662 DOI: 10.1117/1.jbo.28.8.080903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 07/31/2023] [Accepted: 08/04/2023] [Indexed: 08/25/2023]
Abstract
Significance Photoacoustic tomography has emerged as a prominent medical imaging technique that leverages its hybrid nature to provide deep penetration, high resolution, and exceptional optical contrast with notable applications in early cancer detection, functional brain imaging, drug delivery monitoring, and guiding interventional procedures. Test phantoms are pivotal in accelerating technology development and commercialization, specifically in photoacoustic (PA) imaging, and can be optimized to achieve significant advancements in PA imaging capabilities. Aim The analysis of material properties, structural characteristics, and manufacturing methodologies of test phantoms from existing imaging technologies provides valuable insights into their applicability to PA imaging. This investigation enables a deeper understanding of how phantoms can be effectively employed in the context of PA imaging. Approach Three primary categories of test phantoms (simple, intermediate, and advanced) have been developed to differentiate complexity and manufacturing requirements. In addition, four sub-categories (tube/channel, block, test target, and naturally occurring phantoms) have been identified to encompass the structural variations within these categories, resulting in a comprehensive classification system for test phantoms. Results Based on a thorough examination of literature and studies on phantoms in various imaging modalities, proposals have been put forth for the development of multiple PA-capable phantoms, encompassing considerations related to the material composition, structural design, and specific applications within each sub-category. Conclusions The advancement of novel and sophisticated test phantoms within each sub-category is poised to foster substantial progress in both the commercialization and development of PA imaging. Moreover, the continued refinement of test phantoms will enable the exploration of new applications and use cases for PA imaging.
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Affiliation(s)
- Liam B. Christie
- State University of New York at Buffalo, Sensors and MicroActuators Learning Lab, Electrical Engineering, Buffalo, New York, United States
| | - Wenhan Zheng
- State University of New York at Buffalo, Optical and Ultrasonic Imaging Laboratory, Biomedical Engineering, Buffalo, New York, United States
| | - William Johnson
- State University of New York at Buffalo, Sensors and MicroActuators Learning Lab, Electrical Engineering, Buffalo, New York, United States
| | - Eric K. Marecki
- State University of New York at Buffalo, Sensors and MicroActuators Learning Lab, Electrical Engineering, Buffalo, New York, United States
| | - James Heidrich
- State University of New York at Buffalo, Sensors and MicroActuators Learning Lab, Electrical Engineering, Buffalo, New York, United States
| | - Jun Xia
- State University of New York at Buffalo, Optical and Ultrasonic Imaging Laboratory, Biomedical Engineering, Buffalo, New York, United States
| | - Kwang W. Oh
- State University of New York at Buffalo, Sensors and MicroActuators Learning Lab, Electrical Engineering, Buffalo, New York, United States
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19
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Manwar R, Islam MT, Shoo A, Pillers DA, Avanaki K. Development of ex vivo brain hemorrhage phantom for photoacoustic imaging. J Biophotonics 2023; 16:e202200313. [PMID: 37052299 DOI: 10.1002/jbio.202200313] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 03/29/2023] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
Brain hemorrhage, specifically intraventricular hemorrhage (IVH), is considered one of the primary and leading causes of cerebral anomalies in neonates. Several imaging modalities including the most popular, cranial ultrasound, are not capable of detecting early stage IVHs. Photoacoustic imaging (PAI) exhibited great potential for detecting cerebral hemorrhage in studies limited to small animal models, but these models are not comparable to neonatal brain morphology. However, hemorrhage detection in large animal models using PAI is rare due to the complexity and cost of inducing hemorrhage in vivo. Moreover, in vitro studies are unable to represent the physiology and environment of the hemorrhagic lesion. Here, we proposed a pseudo hemorrhage implementation method in the sheep brain that allows us to mimic different hemorrhagic lesions ex vivo without compromising the complexity of cerebral imaging. This approach enables a true evaluation of PAI performance for detecting hemorrhages and can be utilized as a reference to optimize the PAI system for in vivo imaging.
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Affiliation(s)
- Rayyan Manwar
- The Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Md Tarikul Islam
- The Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Anthony Shoo
- Department of Pediatrics, UIHealth Children's Hospital of the University of Illinois at Chicago, Chicago, Illinois, USA
| | - De-Ann Pillers
- Department of Pediatrics, UIHealth Children's Hospital of the University of Illinois at Chicago, Chicago, Illinois, USA
| | - Kamran Avanaki
- The Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, Illinois, USA
- Department of Dermatology and Pediatric, University of Illinois at Chicago, Chicago, Illinois, USA
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20
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Lee M, Landers K, Chan J. Activity-Based Photoacoustic Probes for Detection of Disease Biomarkers beyond Oncology. ACS Bio Med Chem Au 2023; 3:223-232. [PMID: 37363076 PMCID: PMC10288495 DOI: 10.1021/acsbiomedchemau.3c00009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 02/27/2023] [Accepted: 02/28/2023] [Indexed: 06/28/2023]
Abstract
The earliest activity-based photoacoustic (PA) probes were developed as diagnostic agents for cancer. Since this seminal work over a decade ago that specifically targeted matrix metalloproteinase-2, PA instrumentation, dye platforms, and probe designs have advanced considerably, allowing for the detection of an impressive list of cancer types. However, beyond imaging for oncology purposes, the ability to selectively visualize a given disease biomarker, which can range from aberrant enzymatic activity to the overproduction of reactive small molecules, is also being exploited to study a myriad of noncancerous disease states. In this review, we have assembled a collection of recent papers to highlight the design principles that enable activity-based sensing via PA imaging with respect to biomarker identification and strategies to trigger probe activation under specific conditions.
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Gonzalez EA, Bell MAL. Photoacoustic Imaging and Characterization of Bone in Medicine: Overview, Applications, and Outlook. Annu Rev Biomed Eng 2023; 25:207-232. [PMID: 37000966 DOI: 10.1146/annurev-bioeng-081622-025405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Photoacoustic techniques have shown promise in identifying molecular changes in bone tissue and visualizing tissue microstructure. This capability represents significant advantages over gold standards (i.e., dual-energy X-ray absorptiometry) for bone evaluation without requiring ionizing radiation. Instead, photoacoustic imaging uses light to penetrate through bone, followed by acoustic pressure generation, resulting in highly sensitive optical absorption contrast in deep biological tissues. This review covers multiple bone-related photoacoustic imaging contributions to clinical applications, spanning bone cancer, joint pathologies, spinal disorders, osteoporosis, bone-related surgical guidance, consolidation monitoring, and transsphenoidal and transcranial imaging. We also present a summary of photoacoustic-based techniques for characterizing biomechanical properties of bone, including temperature, guided waves, spectral parameters, and spectroscopy. We conclude with a future outlook based on the current state of technological developments, recent achievements, and possible new directions.
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Affiliation(s)
- Eduardo A Gonzalez
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, USA
| | - Muyinatu A Lediju Bell
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, USA
- Department of Electrical and Computer Engineering and Department of Computer Science, Johns Hopkins University, Baltimore, Maryland, USA;
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Zhang W, Luo X, Yang F, Tong Z, Liang J, Yuan B, Yang S, Wang Z. Photoacoustic (532 and 1064 nm) and ultrasonic coscanning microscopy for in vivo imaging on small animals: A productized strategy. J Biophotonics 2023; 16:e202300007. [PMID: 36789474 DOI: 10.1002/jbio.202300007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/06/2023] [Accepted: 02/06/2023] [Indexed: 06/07/2023]
Abstract
Photoacoustic microscopy provides a new dimension of observation in microscopic life science. However, due to the high complexity of building a photoacoustic microscopy system, for many life science practitioners, it usually takes several years to build a stable photoacoustic microscopy system. For the above situation, in this article, a productized strategy of photoacoustic (532 and 1064 nm) and ultrasonic coscanning microscopy for in vivo imaging on small animals is presented. A 532 nm laser is applied to image blood vessels and pigments in label-free manner, whereas 1064 nm laser is applied to image pigments and some novel probes developed for NIR-II windows. Ultrasound is applied to assist photoacoustic imaging to accurately locate its imaging site in tissues. All 3D results are obtained with one single scan. The strategy presented here will help life science practitioners to build a stable photoacoustic microscopy platform.
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Affiliation(s)
- Wuyu Zhang
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Photoacoustic Technology Co., Ltd, Foshan, China
| | - Xingzhi Luo
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Photoacoustic Technology Co., Ltd, Foshan, China
| | - Fei Yang
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Zhuangzhuang Tong
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Photoacoustic Technology Co., Ltd, Foshan, China
| | - Jiaxi Liang
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Bo Yuan
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Sihua Yang
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Zhiyang Wang
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
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23
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Singh R, Yang X. A review on photo-mediated ultrasound therapy. Exp Biol Med (Maywood) 2023; 248:775-786. [PMID: 37452726 PMCID: PMC10468643 DOI: 10.1177/15353702231181191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023] Open
Abstract
Photo-mediated ultrasound therapy (PUT) is a novel therapeutic technique based on the combination of ultrasound and laser. The underlying mechanism of PUT is the enhanced cavitation effect inside blood vessels. The enhanced cavitation activity can result in bio-effects such as reduced perfusion in microvessels. The reduced perfusion effect in microvessels in the eye has the potential to control the progression of eye diseases such as diabetic retinopathy and age-related macular degeneration. Several in vivo studies have demonstrated the feasibility of PUT in removing microvasculature in the eye using rabbit eye model and vasculature in the skin using rabbit ear model. Numerical studies using a bubble dynamics model found that cavitation is enhanced during PUT due to the dramatic increase in size of air/vapor nuclei in blood. In addition, the study conducted to model cavitation dynamics inside a blood vessel during PUT found stresses induced on the vessel wall during PUT are higher than that at normal physiological levels, which may be responsible for bio-effects. The concentration of vasodilators such as nitric oxide and prostacyclin were also found to be affected during PUT in an in vitro study, which may limit blood perfusion in vessels. The main advantage of PUT over conventional techniques is non-invasive, precise, and selective removal of microvessels with high efficiency at relatively low energy levels of ultrasound and laser, without affecting the nearby structures. However, the main limitation of vessel rupture/hemorrhage needs to be overcome through the development of real-time monitoring of treatment effects during PUT. In addition to the application in removing microvessels, PUT-based techniques were also explored in treating other diseases. Studies have found a combination of ultrasound and laser to be effective in removing blood clots inside veins, which has the potential to treat deep-vein thrombosis. The disruption of atherosclerotic plaque using combined ultrasound and laser was also tested, and the feasibility was demonstrated.
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Affiliation(s)
- Rohit Singh
- Department of Mechanical Engineering, Institute for Bioengineering Research, The University of Kansas, Lawrence, KS 66045, USA
| | - Xinmai Yang
- Department of Mechanical Engineering, Institute for Bioengineering Research, The University of Kansas, Lawrence, KS 66045, USA
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24
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Djordjević KL, Markushev DK, Popović MN, Nesić MV, Galović SP, Lukić DV, Markushev DD. Photoacoustic Characterization of TiO 2 Thin-Films Deposited on Silicon Substrate Using Neural Networks. Materials (Basel) 2023; 16:2865. [PMID: 37049158 PMCID: PMC10096069 DOI: 10.3390/ma16072865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/24/2023] [Accepted: 03/31/2023] [Indexed: 06/19/2023]
Abstract
In this paper, the possibility of determining the thermal, elastic and geometric characteristics of a thin TiO2 film deposited on a silicon substrate, with a thickness of 30 μm, in the frequency range of 20 to 20 kHz with neural networks were analysed. For this purpose, the geometric (thickness), thermal (thermal diffusivity, coefficient of linear expansion) and electronic parameters of substrates were known and constant in the two-layer model, while the following nano-layer thin-film parameters were changed: thickness, expansion and thermal diffusivity. Predictions of these three parameters of the thin-film were analysed separately with three neural networks. All of them together were joined by a fourth neural network. It was shown that the neural network, which analysed all three parameters at the same time, achieved the highest accuracy, so the use of networks that provide predictions for only one parameter is less reliable. The obtained results showed that the application of neural networks in determining the thermoelastic properties of a thin film on a supporting substrate enables the estimation of its characteristics with great accuracy.
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Affiliation(s)
- Katarina Lj Djordjević
- “Vinča” Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | - Dragana K. Markushev
- Institute of Physics Belgrade, National Institute of the Republic of Serbia, Pregrevica 118, University of Belgrade, Zemun, 11080 Belgrade, Serbia
| | - Marica N. Popović
- Institute of Physics Belgrade, National Institute of the Republic of Serbia, Pregrevica 118, University of Belgrade, Zemun, 11080 Belgrade, Serbia
| | - Mioljub V. Nesić
- “Vinča” Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | - Slobodanka P. Galović
- “Vinča” Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | - Dragan V. Lukić
- Institute of Physics Belgrade, National Institute of the Republic of Serbia, Pregrevica 118, University of Belgrade, Zemun, 11080 Belgrade, Serbia
| | - Dragan D. Markushev
- Institute of Physics Belgrade, National Institute of the Republic of Serbia, Pregrevica 118, University of Belgrade, Zemun, 11080 Belgrade, Serbia
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25
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Fadhel MN, Appak Baskoy S, Wang Y, Hysi E, Kolios MC. Use of photoacoustic imaging for monitoring vascular disrupting cancer treatments. J Biophotonics 2023; 16:e202000209. [PMID: 32888381 DOI: 10.1002/jbio.202000209] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 08/17/2020] [Accepted: 08/19/2020] [Indexed: 06/11/2023]
Abstract
Vascular disrupting agents disrupt tumor vessels, blocking the nutritional and oxygen supply tumors need to thrive. This is achieved by damaging the endothelium lining of blood vessels, resulting in red blood cells (RBCs) entering the tumor parenchyma. RBCs present in the extracellular matrix are exposed to external stressors resulting in biochemical and physiological changes. The detection of these changes can be used to monitor the efficacy of cancer treatments. Spectroscopic photoacoustic (PA) imaging is an ideal candidate for probing RBCs due to their high optical absorption relative to surrounding tissue. The goal of this work is to use PA imaging to monitor the efficacy of the vascular disrupting agent 5,6-Dimethylxanthenone-4-acetic acid (DMXAA) through quantitative analysis. Then, 4T1 breast cancer cells were injected subcutaneously into the left hind leg of eight BALB/c mice. After 10 days, half of the mice were treated with 15 mg/kg of DMXAA and the other half were injected with saline. All mice were imaged using the VevoLAZR X PA system before treatment, 24 and 72 hours after treatment. The imaging was done at six wavelengths and linear spectral unmixing was applied to the PA images to quantify three forms of hemoglobin (oxy, deoxy and met-hemoglobin). After imaging, tumors were histologically processed and H&E and TUNEL staining were used to detect the tissue damage induced by the DMXAA treatment. The total hemoglobin concentration remained unchanged after treatment for the saline treated mice. For DMXAA treated mice, a 10% increase of deoxyhemoglobin concentration was detected 24 hours after treatment and a 22.6% decrease in total hemoglobin concentration was observed by 72 hours. A decrease in the PA spectral slope parameters was measured 24 hours after treatment. This suggests that DMXAA induces vascular damage, causing red blood cells to extravasate. Furthermore, H&E staining of the tumor showed areas of bleeding with erythrocyte deposition. These observations are further supported by the increase in TUNEL staining in DMXAA treated tumors, revealing increased cell death due to vascular disruption. This study demonstrates the capability of PA imaging to monitor tumor vessel disruption by the vascular disrupting agent DMXAA.
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Affiliation(s)
- Muhannad N Fadhel
- Department of Physics, Ryerson University, Toronto, Ontario, Canada
- Institute for Biomedical Engineering, Science and Technology (iBEST), Toronto, Ontario, Canada
- Department of Physics, Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Toronto, Ontario, Canada
| | - Sila Appak Baskoy
- Department of Physics, Ryerson University, Toronto, Ontario, Canada
- Institute for Biomedical Engineering, Science and Technology (iBEST), Toronto, Ontario, Canada
- Department of Physics, Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Toronto, Ontario, Canada
| | - Yanjie Wang
- Department of Physics, Ryerson University, Toronto, Ontario, Canada
- Institute for Biomedical Engineering, Science and Technology (iBEST), Toronto, Ontario, Canada
- Department of Physics, Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Toronto, Ontario, Canada
| | - Eno Hysi
- Department of Physics, Ryerson University, Toronto, Ontario, Canada
- Institute for Biomedical Engineering, Science and Technology (iBEST), Toronto, Ontario, Canada
- Department of Physics, Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Toronto, Ontario, Canada
| | - Michael C Kolios
- Department of Physics, Ryerson University, Toronto, Ontario, Canada
- Institute for Biomedical Engineering, Science and Technology (iBEST), Toronto, Ontario, Canada
- Department of Physics, Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Toronto, Ontario, Canada
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26
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Guo H, Cao Z, Li J, Fu Z, Lin S, Wang L, Liu J. Integrating Bacteria with a Ternary Combination of Photosensitizers for Monochromatic Irradiation-Mediated Photoacoustic Imaging-Guided Synergistic Photothermal Therapy. ACS Nano 2023; 17:5059-5071. [PMID: 36847803 DOI: 10.1021/acsnano.3c00032] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Photosensitizer-based therapy often suffers from unitary and easily attenuated photosensitive effects, limited tumor penetration and retention, and requirement of multiple irradiation for combination therapy, which largely restrict its application. Here, bacteria are integrated with a monochromatic irradiation-mediated ternary combination of photosensitizers for photoacoustic imaging-guided synergistic photothermal therapy. Bacteria that are bioengineered to express natural melanin are decorated with dual synthetic photosensitizers by nanodeposition with indocyanine green and polydopamine under a cytocompatible condition. The combined photosensitizers, which share an adequate excitation at 808 nm, endow integrated bacteria with a stable triple photoacoustic and photothermal effect under a monochromatic irradiation. Due to their living characteristics, these bacteria preferentially colonize hypoxic tumor tissue with homogeneous distribution and durable retention and generate uniform imaging signals and a sufficient heating of tumor upon laser irradiation. Supported by significantly inhibited tumor growth and extended survival of animals in different tumor-bearing murine models, our work proposes the development of bacteria-based innovative photosensitizers for imaging-guided therapy.
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Affiliation(s)
- Haiyan Guo
- Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P. R. China
| | - Zhenping Cao
- Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Juanjuan Li
- Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Zhenzhen Fu
- Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Sisi Lin
- Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Lu Wang
- Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Jinyao Liu
- Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
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27
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Jo J, Folz J, Gonzalez ME, Paolì A, Eido A, Salfi E, Tekula S, Andò S, Caruso R, Kleer CG, Wang X, Kopelman R. Personalized Oncology by In Vivo Chemical Imaging: Photoacoustic Mapping of Tumor Oxygen Predicts Radiotherapy Efficacy. ACS Nano 2023; 17:4396-4403. [PMID: 36847392 PMCID: PMC10149113 DOI: 10.1021/acsnano.2c09502] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
We hereby apply the approach of photoacoustic chemical imaging, performing an in vivo chemical analysis that is spatially resolved (200 μm) and in real time, to predict a given tumor's response to therapy. Using triple negative breast cancer as a model, we took photoacoustic images of tumors' oxygen distributions in patient-derived xenografts (PDXs) in mice using biocompatible, oxygen-sensitive tumor-targeted chemical contrast nanoelements (nanosonophores), which function as contrast agents for photoacoustic imaging. Following radiation therapy, we established a quantitatively significant correlation between the spatial distribution of the initial oxygen levels in the tumor and its spatial distribution of the therapy's efficacy: the lower the local oxygen, the lower the local radiation therapy efficacy. We thus provide a simple, noninvasive, and inexpensive method to both predict the efficacy of radiation therapy for a given tumor and identify treatment-resistant regions within the tumor's microenvironment.
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Affiliation(s)
- Janggun Jo
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jeff Folz
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Maria E. Gonzalez
- Department of Pathology and Rogel Cancer Center, University of Michigan Health System, Ann Arbor, MI 48109, USA
| | - Alessandro Paolì
- Department of Pathology and Rogel Cancer Center, University of Michigan Health System, Ann Arbor, MI 48109, USA
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende (CS) 87036, Italy
- Department of Biology, University of Padua, Padua 35122, Italy
| | - Ahmad Eido
- Department of Pathology and Rogel Cancer Center, University of Michigan Health System, Ann Arbor, MI 48109, USA
| | - Eamon Salfi
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Shilpa Tekula
- Department of Pathology and Rogel Cancer Center, University of Michigan Health System, Ann Arbor, MI 48109, USA
| | - Sebastiano Andò
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende (CS) 87036, Italy
| | - Roberta Caruso
- Department of Pathology and Rogel Cancer Center, University of Michigan Health System, Ann Arbor, MI 48109, USA
| | - Celina G. Kleer
- Department of Pathology and Rogel Cancer Center, University of Michigan Health System, Ann Arbor, MI 48109, USA
- Corresponding Author: Drs. Kleer, Wang and Kopelman are corresponding authors, Celina G. Kleer, MD – . Telephone: 734-936-6775, Xueding Wang, PhD - . Telephone: 734-647-2728, Raoul Kopelman, PhD - . Telephone: 734-764-7541
| | - Xueding Wang
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Corresponding Author: Drs. Kleer, Wang and Kopelman are corresponding authors, Celina G. Kleer, MD – . Telephone: 734-936-6775, Xueding Wang, PhD - . Telephone: 734-647-2728, Raoul Kopelman, PhD - . Telephone: 734-764-7541
| | - Raoul Kopelman
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
- Corresponding Author: Drs. Kleer, Wang and Kopelman are corresponding authors, Celina G. Kleer, MD – . Telephone: 734-936-6775, Xueding Wang, PhD - . Telephone: 734-647-2728, Raoul Kopelman, PhD - . Telephone: 734-764-7541
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28
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Thompson WR, Brecht HPF, Ivanov V, Yu AM, Dumani DS, Lawrence DJ, Emelianov SY, Ermilov SA. Characterizing a photoacoustic and fluorescence imaging platform for preclinical murine longitudinal studies. J Biomed Opt 2023; 28:036001. [PMID: 36895414 PMCID: PMC9990133 DOI: 10.1117/1.jbo.28.3.036001] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
Significance To effectively study preclinical animal models, medical imaging technology must be developed with a high enough resolution and sensitivity to perform anatomical, functional, and molecular assessments. Photoacoustic (PA) tomography provides high resolution and specificity, and fluorescence (FL) molecular tomography provides high sensitivity; the combination of these imaging modes will enable a wide range of research applications to be studied in small animals. Aim We introduce and characterize a dual-modality PA and FL imaging platform using in vivo and phantom experiments. Approach The imaging platform's detection limits were characterized through phantom studies that determined the PA spatial resolution, PA sensitivity, optical spatial resolution, and FL sensitivity. Results The system characterization yielded a PA spatial resolution of 173 ± 17 μ m in the transverse plane and 640 ± 120 μ m in the longitudinal axis, a PA sensitivity detection limit not less than that of a sample with absorption coefficient μ a = 0.258 cm - 1 , an optical spatial resolution of 70 μ m in the vertical axis and 112 μ m in the horizontal axis, and a FL sensitivity detection limit not < 0.9 μ M concentration of IR-800. The scanned animals displayed in three-dimensional renders showed high-resolution anatomical detail of organs. Conclusions The combined PA and FL imaging system has been characterized and has demonstrated its ability to image mice in vivo, proving its suitability for biomedical imaging research applications.
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Affiliation(s)
| | | | - Vassili Ivanov
- PhotoSound Technologies, Inc., Houston, Texas, United States
| | - Anthony M. Yu
- Georgia Institute of Technology, Department of Biomedical Engineering, Atlanta, Georgia, United States
| | - Diego S. Dumani
- Georgia Institute of Technology, Department of Biomedical Engineering, Atlanta, Georgia, United States
| | | | - Stanislav Y. Emelianov
- Georgia Institute of Technology, Department of Biomedical Engineering, Atlanta, Georgia, United States
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29
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Campanholi KDSS, Junior RCDS, Morais FAP, Gonçalves RS, Rodrigues BM, Pozza MSDS, Castro-Hoshino LV, Leite SM, Capeloto OA, Baesso ML, Pozza PC, Caetano W. Copaiba Oil-Based Emulsion as a Natural Chemotherapeutic Agent for the Treatment of Bovine Mastitis: In Vivo Studies. Pharmaceutics 2023; 15. [PMID: 36839669 DOI: 10.3390/pharmaceutics15020346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/29/2022] [Accepted: 01/17/2023] [Indexed: 01/21/2023] Open
Abstract
Copaiba oil-resin (COR) extracted from Copaifera reticulata Ducke has been used as a natural chemotherapeutic agent for a wide range of therapeutic applications. This study presents an emulgel design with a high concentration of COR, designed to prevent and treat mastitis. The COR was stabilized in a gel matrix constituted by carbopol C934P and Pluronic® F127 (ECO formulation) ratios. The permeation study of ECO was accessed by Fourier transform infrared photoacoustic spectroscopy (FTIR-PAS). The results reveal a high capacity of ECO to permeate deep skin layers. Dairy cows with a history of mastitis were used as in vivo models and exposed to ECO treatment. Monitoring of the teat's inflammatory response showed that ECO effectively prevents mastitis. Furthermore, the ECO formulation was able to form a thin film gel on the application side, preventing fly proliferation and significantly reducing the pathogen load. This study reveals a drug that can used as an alternative application for mastitis in human or veterinary clinics.
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30
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Zhao S, Lee L, Zhao Y, Liang NC, Chen YS. Photoacoustic signal enhancement in dual-contrast gastrin-releasing peptide receptor-targeted nanobubbles. Front Bioeng Biotechnol 2023; 11:1102651. [PMID: 36733960 PMCID: PMC9887164 DOI: 10.3389/fbioe.2023.1102651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 01/02/2023] [Indexed: 01/18/2023] Open
Abstract
Translatable imaging agents are a crucial element of successful molecular imaging. Photoacoustic molecular imaging relies on optical absorbing materials to generate a sufficient signal. However, few materials approved for human use can generate adequate photoacoustic responses. Here we report a new nanoengineering approach to further improve photoacoustic response from biocompatible materials. Our study shows that when optical absorbers are incorporated into the shell of a gaseous nanobubble, their photoacoustic signal can be significantly enhanced compared to the original form. As an example, we constructed nanobubbles using biocompatible indocyanine green (ICG) and biodegradable poly(lactic-co-glycolic acid) (PLGA). We demonstrated that these ICG nanobubbles generate a strong ultrasound signal and almost four-fold photoacoustic signal compared to the same concentration of ICG solution; our theoretical calculations corroborate this effect and elucidate the origin of the photoacoustic enhancement. To demonstrate their molecular imaging performance, we conjugated gastrin-releasing peptide receptor (GRPR) targeting ligands with the ICG nanobubbles. Our dual photoacoustic/ultrasound molecular imaging shows a more than three-fold enhancement in targeting specificity of the GRPR-targeted ICG nanobubbles, compared to untargeted nanobubbles or prostate cancer cells not expressing GRPR, in a prostate cancer xenograft mouse model in vivo.
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Affiliation(s)
- Shensheng Zhao
- Department of Electrical and Computer Engineering, University of Illinois Urbana-Champaign, Urbana, IL, United States,Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL, United States
| | - Leanne Lee
- Department of Electrical and Computer Engineering, University of Illinois Urbana-Champaign, Urbana, IL, United States,Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, IL, United States
| | - Yang Zhao
- Department of Electrical and Computer Engineering, University of Illinois Urbana-Champaign, Urbana, IL, United States,Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, IL, United States,Carl R. Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, IL, United States
| | - Nu-Chu Liang
- Department of Psychology, University of Illinois Urbana-Champaign, Urbana, IL, United States
| | - Yun-Sheng Chen
- Department of Electrical and Computer Engineering, University of Illinois Urbana-Champaign, Urbana, IL, United States,Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL, United States.,Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, IL, United States,Department of Biomedical and Translational Sciences, University of Illinois Urbana-Champaign, Urbana, IL, United States,*Correspondence: Yun-Sheng Chen,
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31
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Wu M, Huang Y, Huang X, Wang F, Wei X. Copolymerized carbon nitride nanoparticles for near-infrared II photoacoustic-guided synergistic photothermal/radiotherapy. Front Chem 2023; 11:1124559. [PMID: 36711234 PMCID: PMC9880048 DOI: 10.3389/fchem.2023.1124559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 01/06/2023] [Indexed: 01/15/2023] Open
Abstract
Nanotheranostic agents that integrate diagnosis and treatment are promising for precision medicine, but they encounter some obstacles such as penetration depth and efficiency. In this study, novel carbon nitride-rose bengal nanoparticles (CN-RB NPs) with a graphite carbon nitride skeleton were synthesized by one-step thermal copolymerization. The enhanced absorption in the near-infrared-II region (NIR-II) endows CN-RB NPs with an excellent photothermal effect under 1064 nm laser irradiation, as well as an obvious photoacoustic signal for imaging in vivo. Interestingly, due to the introduced iodine element, CN-RB NPs exhibit enhanced radiation therapy, indicating that CN-RB NPs can achieve ideal therapeutic outcome through collaborative photothermal/radiation therapy under the guidance of NIR-II photoacoustic imaging. Moreover, CN-RB NPs demonstrate minimal side effects and long-term biological stability after 14 days. Therefore, the proposed new multifunctional nano-platform CN-RB NPs hold great potential in the application of deep therapeutics.
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Affiliation(s)
- Min Wu
- Department of Plastic and Reconstructive Surgery, School of Medicine, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China,*Correspondence: Min Wu, ; Fu Wang, ; Xunbin Wei,
| | - Yuxin Huang
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoyu Huang
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Fu Wang
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China,*Correspondence: Min Wu, ; Fu Wang, ; Xunbin Wei,
| | - Xunbin Wei
- Biomedical Engineering Department, Peking University, Beijing, China,*Correspondence: Min Wu, ; Fu Wang, ; Xunbin Wei,
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Basij M, John S, Bustamante D, Kabbani L, Maskoun W, Mehrmohammadi M. Integrated Ultrasound and Photoacoustic-Guided Laser Ablation Theranostic Endoscopic System. IEEE Trans Biomed Eng 2023; 70:67-75. [PMID: 35724291 PMCID: PMC10355465 DOI: 10.1109/tbme.2022.3184495] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Advancements in ablation techniques have paved the way towards the development of safer and more effective clinical procedures for treating various maladies such as atrial fibrillation (AF). AF is characterized by rapid, chaotic atrial activation and is commonly treated using radiofrequency applicators or laser ablation catheters. However, the lack of thermal lesion formation and temperature monitoring capabilities in these devices prevents them from measuring the treatment outcome directly. In addition, poor differentiation between healthy and ablated tissues leads to incomplete ablation, which reduces safety and causes complications in patients. Hence, a novel photoacoustic (PA)-guided laser ablation theranostic device was developed around a traditional phased-array endoscope. The proposed technology provides lesion formation, tissue distinguishing, and temperature monitoring capabilities. Our results have validated the lesion monitoring capability of the proposed technology through PA correlation maps. The tissue distinguishing capability of the theranostic device was verified by the measurable differences in the PA signal between pre-and post-ablated mice myocardial tissue. The increase in the PA signal with temperature variations caused by the ablation laser confirmed the ability of the proposed device to provide temperature feedback.
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Affiliation(s)
- Maryam Basij
- Department of Biomedical Engineering Wayne State University, Detroit, MI, USA
| | - Samuel John
- Department of Biomedical Engineering Wayne State University, Detroit, MI, USA
| | - David Bustamante
- Department of Biomedical Engineering Wayne State University, Detroit, MI, USA
| | - Loay Kabbani
- Department of Vascular Surgery, Henry Ford Health Systems, Detroit, MI, USA
| | - Waddah Maskoun
- Department of Cardiology, Henry Ford Hospital, Detroit, MI, USA
| | - Mohammad Mehrmohammadi
- Department of Biomedical Engineering at Wayne State University and Scientific member of molecular imaging at Barbara Ann Karmanos Cancer Institute, Detroit, MI, USA
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Seguchi M, Aytekin A, Lenz T, Nicol P, Klosterman GR, Beele A, Sabic E, Utsch L, Alyaqoob A, Gorpas D, Ntziachristos V, Jaffer FA, Rauschendorfer P, Joner M. Intravascular molecular imaging: translating pathophysiology of atherosclerosis into human disease conditions. Eur Heart J Cardiovasc Imaging 2022; 24:e1-e16. [PMID: 36002376 DOI: 10.1093/ehjci/jeac163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 07/31/2022] [Indexed: 12/25/2022] Open
Abstract
Progression of atherosclerotic plaque in coronary arteries is characterized by complex cellular and non-cellular molecular interactions. Within recent years, atherosclerosis has been recognized as inflammation-driven disease condition, where progressive stages are characterized by morphological changes in plaque composition but also relevant molecular processes resulting in increased plaque vulnerability. While existing intravascular imaging modalities are able to resolve key morphological features during plaque progression, they lack capability to characterize the molecular profile of advanced atherosclerotic plaque. Because hybrid imaging modalities may provide incremental information related to plaque biology, they are expected to provide synergistic effects in detecting high risk patients and lesions. The aim of this article is to review existing literature on intravascular molecular imaging approaches, and to provide clinically oriented proposals of their application. In addition, we assembled an overview of future developments in this field geared towards detection of patients at risk for cardiovascular events.
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Affiliation(s)
- Masaru Seguchi
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Alp Aytekin
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Tobias Lenz
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Philipp Nicol
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Grace R Klosterman
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Alicia Beele
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Emina Sabic
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Léa Utsch
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Aseel Alyaqoob
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany
| | - Dimitris Gorpas
- Chair of Biological Imaging and TranslaTUM, Technical University of Munich, Munich 80333, Germany.,Institute of Biological and Medical Imaging, Helmholtz Zentrum München GmbH, Neuherberg 85764, Germany
| | - Vasilis Ntziachristos
- Chair of Biological Imaging and TranslaTUM, Technical University of Munich, Munich 80333, Germany.,Institute of Biological and Medical Imaging, Helmholtz Zentrum München GmbH, Neuherberg 85764, Germany.,Deutsches Zentrum für Herz- und Kreislauf-Forschung (DZHK) e.V. (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich 80336, Germany
| | - Farouc A Jaffer
- Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Philipp Rauschendorfer
- Chair of Biological Imaging and TranslaTUM, Technical University of Munich, Munich 80333, Germany.,Institute of Biological and Medical Imaging, Helmholtz Zentrum München GmbH, Neuherberg 85764, Germany.,Deutsches Zentrum für Herz- und Kreislauf-Forschung (DZHK) e.V. (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich 80336, Germany
| | - Michael Joner
- Klinik für Herz- und Kreislauferkrankungen, Deutsches Herzzentrum München, Technical University Munich, Munich 80636, Germany.,Deutsches Zentrum für Herz- und Kreislauf-Forschung (DZHK) e.V. (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich 80336, Germany
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Nakazawa H, Tokumine J, Lefor AK, Yamamoto K, Karasawa H, Shimazu K, Yorozu T. Use of a photoacoustic needle improves needle tip recognition in a video recording of simulated ultrasound-guided vascular access: A pilot study. J Vasc Access 2022:11297298221122137. [PMID: 36519739 DOI: 10.1177/11297298221122137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024] Open
Abstract
BACKGROUND We developed a novel photoacoustic needle, which emits ultrasound produced by the photoacoustic effect. This study focused on the most common "pitfall" associated with placement during ultrasound-guided vascular access, which is misidentification of the needle tip. METHODS The study was conducted as a prospective cohort study using a questionnaire. The authors intentionally created two successful and one failed ultrasound-guided central venous catheterization videos using the photoacoustic needle on a simulator. Each of these three videos was then split into two movies for viewing, one with standard ultrasound images only and the second including the images from the photoacoustic needle, for a total of six movies. RESULTS Participants who were 18 anesthesiologists, 12 residents, and 10 medical students, watched each of the six movies and completed a survey whether the puncture was successful or not. In the results, there was a significant difference in the percentage of correct answers whether the movie depicted successful or failed puncture with and without the photoacoustic ultrasound (p = 0.0001). CONCLUSION The novel photoacoustic needle improved the ability to identify the needle tip on recorded videos. It may have efficacy to prevent serious mechanical complication during the ultrasound-guided vascular access in clinical practice.
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Affiliation(s)
- Harumasa Nakazawa
- Department of Anesthesiology, Kyorin University School of Medicine, Mitaka, Tokyo, Japan
| | - Joho Tokumine
- Department of Anesthesiology, Kyorin University School of Medicine, Mitaka, Tokyo, Japan
| | - Alan Kawarai Lefor
- Department of Surgery, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Katsuya Yamamoto
- Medical System Research & Development Center, FUJIFILM Corporation, Kanagawa, Japan
| | - Hiroyuki Karasawa
- Medical System Research & Development Center, FUJIFILM Corporation, Kanagawa, Japan
| | - Keisuke Shimazu
- Department of Anesthesiology, Kyorin University School of Medicine, Mitaka, Tokyo, Japan
| | - Tomoko Yorozu
- Department of Anesthesiology, Kyorin University School of Medicine, Mitaka, Tokyo, Japan
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Yoon C, Lee C, Shin K, Kim C. Motion Compensation for 3D Multispectral Handheld Photoacoustic Imaging. Biosensors (Basel) 2022; 12:1092. [PMID: 36551059 PMCID: PMC9775698 DOI: 10.3390/bios12121092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/26/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
Three-dimensional (3D) handheld photoacoustic (PA) and ultrasound (US) imaging performed using mechanical scanning are more useful than conventional 2D PA/US imaging for obtaining local volumetric information and reducing operator dependence. In particular, 3D multispectral PA imaging can capture vital functional information, such as hemoglobin concentrations and hemoglobin oxygen saturation (sO2), of epidermal, hemorrhagic, ischemic, and cancerous diseases. However, the accuracy of PA morphology and physiological parameters is hampered by motion artifacts during image acquisition. The aim of this paper is to apply appropriate correction to remove the effect of such motion artifacts. We propose a new motion compensation method that corrects PA images in both axial and lateral directions based on structural US information. 3D PA/US imaging experiments are performed on a tissue-mimicking phantom and a human wrist to verify the effects of the proposed motion compensation mechanism and the consequent spectral unmixing results. The structural motions and sO2 values are confirmed to be successfully corrected by comparing the motion-compensated images with the original images. The proposed method is expected to be useful in various clinical PA imaging applications (e.g., breast cancer, thyroid cancer, and carotid artery disease) that are susceptible to motion contamination during multispectral PA image analysis.
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Affiliation(s)
- Chiho Yoon
- Department of Electrical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Changyeop Lee
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | | | - Chulhong Kim
- Departments of Electrical Engineering, Convergence IT Engineering, and Mechanical Engineering, Medical Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
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Jang J, Jo Y, Park CB. Metal-Organic Framework-Derived Carbon as a Photoacoustic Modulator of Alzheimer's β-Amyloid Aggregate Structure. ACS Nano 2022; 16:18515-18525. [PMID: 36260563 DOI: 10.1021/acsnano.2c06759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Photoacoustic materials emit acoustic waves into the surrounding by absorbing photon energy. In an aqueous environment, light-induced acoustic waves form cavitation bubbles by altering the localized pressure to trigger the phase transition of liquid water into vapor. In this study, we report photoacoustic dissociation of beta-amyloid (Aβ) aggregates, a hallmark of Alzheimer's disease, by metal-organic framework-derived carbon (MOFC). MOFC exhibits a near-infrared (NIR) light-responsive photoacoustic characteristic that possesses defect-rich and entangled graphitic layers that generate intense cavitation bubbles by absorbing tissue-penetrable NIR light. According to our video analysis, the photoacoustic cavitation by MOFC occurs within milliseconds in the water, which was controllable by NIR light dose. The photoacoustic cavitation successfully transforms robust, β-sheet-dominant neurotoxic Aβ aggregates into nontoxic debris by changing the asymmetric distribution of water molecules around the Aβ's amino acid residues. This work unveils the therapeutic potential of NIR-triggered photoacoustic cavitation as a modulator of the Aβ aggregate structure.
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Affiliation(s)
- Jinhyeong Jang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon 34141, Republic of Korea
| | - Yonghan Jo
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon 34141, Republic of Korea
| | - Chan Beum Park
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon 34141, Republic of Korea
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Chen G, Shi L, Lan L, Wang R, Li Y, Du Z, Hyman M, Cheng JX, Yang C. High-precision neural stimulation by a highly efficient candle soot fiber optoacoustic emitter. Front Neurosci 2022; 16:1005810. [PMID: 36408413 PMCID: PMC9669258 DOI: 10.3389/fnins.2022.1005810] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/10/2022] [Indexed: 09/01/2023] Open
Abstract
Highly precise neuromodulation with a high efficacy poses great importance in neuroscience. Here we developed a candle soot fiber optoacoustic emitter (CSFOE), capable of generating a high pressure of over 10 MPa with a central frequency of 12.8 MHz, enabling highly efficient neuromodulation in vitro. The design of the fiber optoacoustic emitter, including the choice of the material and the thickness of the layered structure, was optimized in both simulations and experiments. The optoacoustic conversion efficiency of the optimized CSFOE was found to be 10 times higher than the other carbon-based fiber optoacoustic emitters. Driven by a single laser, the CSFOE can perform dual-site optoacoustic activation of neurons, confirmed by calcium (Ca2+) imaging. Our work opens potential avenues for more complex and programmed control in neural circuits using a simple design for multisite neuromodulation in vivo.
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Affiliation(s)
- Guo Chen
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, United States
- Photonics Center, Boston University, Boston, MA, United States
| | - Linli Shi
- Photonics Center, Boston University, Boston, MA, United States
- Department of Chemistry, Boston University, Boston, MA, United States
| | - Lu Lan
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, United States
| | - Runyu Wang
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, United States
| | - Yueming Li
- Photonics Center, Boston University, Boston, MA, United States
- Department of Mechanical Engineering, Boston University, Boston, MA, United States
| | - Zhiyi Du
- Photonics Center, Boston University, Boston, MA, United States
- Department of Chemistry, Boston University, Boston, MA, United States
| | - Mackenzie Hyman
- Photonics Center, Boston University, Boston, MA, United States
- Department of Biomedical Engineering, Boston University, Boston, MA, United States
| | - Ji-Xin Cheng
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, United States
- Department of Biomedical Engineering, Boston University, Boston, MA, United States
| | - Chen Yang
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, United States
- Department of Chemistry, Boston University, Boston, MA, United States
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Lengert L, Lohmann H, Johannsmeier S, Ripken T, Maier H, Heisterkamp A, Kalies S. Optoacoustic tones generated by nanosecond laser pulses can cover the entire human hearing range. J Biophotonics 2022; 15:e202200161. [PMID: 36328060 DOI: 10.1002/jbio.202200161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 06/16/2023]
Abstract
The aim of this work is to generate defined tones that cover the human hearing range in aqueous media for a later application in middle or inner ear implants. In our experiments, we investigated the characteristics of single laser pulses and pulse trains with different laser repetition rates of nanosecond laser pulses that were focused into aqueous media in a small volume. The frequency of the generated tones was limited by the spectral properties of the single acoustic pulses, which depended on the medium. Tones with fundamental frequencies above 8 kHz were generated using laser pulses focused into water. By replacing water with gel, tones between 500 Hz and 20 kHz could be produced. The generation of tones in the low-frequency range was only possible when laser pulse trains with pulse density modulated pulse patterns were applied in gel. This enabled the generation of tones between 20 Hz and 2 kHz. Consequently, the combination of different pulse patterns for the different frequency ranges allows generating optoacoustic tones between 20 Hz and 20 kHz in gel. Thus, we can cover the complete range of human hearing through optoacoustically generated tones.
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Affiliation(s)
- Liza Lengert
- Industrial and Biomedical Optics, Laser Zentrum Hannover e.V., Hannover, Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover, Germany
- Cluster of Excellence Hearing4all, Hannover and Oldenburg, Hannover, Germany
| | - Hinnerk Lohmann
- Institute of Quantum Optics, Leibniz University Hannover, Hannover, Germany
| | - Sonja Johannsmeier
- Industrial and Biomedical Optics, Laser Zentrum Hannover e.V., Hannover, Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover, Germany
| | - Tammo Ripken
- Industrial and Biomedical Optics, Laser Zentrum Hannover e.V., Hannover, Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover, Germany
- Cluster of Excellence Hearing4all, Hannover and Oldenburg, Hannover, Germany
| | - Hannes Maier
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover, Germany
- Cluster of Excellence Hearing4all, Hannover and Oldenburg, Hannover, Germany
- Department of Otorhinolaryngology, Hannover Medical School MHH, Hannover, Germany
| | - Alexander Heisterkamp
- Industrial and Biomedical Optics, Laser Zentrum Hannover e.V., Hannover, Germany
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover, Germany
- Cluster of Excellence Hearing4all, Hannover and Oldenburg, Hannover, Germany
- Institute of Quantum Optics, Leibniz University Hannover, Hannover, Germany
| | - Stefan Kalies
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover, Germany
- Cluster of Excellence Hearing4all, Hannover and Oldenburg, Hannover, Germany
- Institute of Quantum Optics, Leibniz University Hannover, Hannover, Germany
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Chen J, Zeng S, Xue Q, Hong Y, Liu L, Song L, Fang C, Zhang H, Wang B, Sedgwick AC, Zhang P, Sessler JL, Liu C, Chen J. Photoacoustic image-guided biomimetic nanoparticles targeting rheumatoid arthritis. Proc Natl Acad Sci U S A 2022; 119:e2213373119. [PMID: 36256822 DOI: 10.1073/pnas.2213373119] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The high level of reactive oxygen species (ROS) in the rheumatoid arthritis (RA) microenvironment (RAM) and its persistent inflammatory nature can promote damage to joints, bones, and the synovium. Targeting strategies that integrate effective RAM regulation with imaging-based monitoring could lead to improvements in the diagnosis and treatment of RA. Here, we report the combined use of small interfering RNAs (siRNAsT/I) and Prussian blue nanoparticles (PBNPs) to silence the expression of proinflammatory cytokines TNF-α/IL-6 and scavenge the ROS associated with RAM. To enhance the in vitro and in vivo biological stability, biocompatibility, and targeting capability of the siRNAsT/I and PBNPs, macrophage membrane vesicles were used to prepare biomimetic nanoparticles, M@P-siRNAsT/I. The resulting constructs were found to suppress tumor necrosis factor-α/interleukin-6 expression and overcome the hypoxic nature of RAM, thus alleviating RA-induced joint damage in a mouse model. The M@P-siRNAsT/I of this study could be monitored via near-infrared photoacoustic (PA) imaging. Moreover, multispectral PA imaging without the need for labeling permitted the real-time evaluation of M@P-siRNAsT/I as a putative RA treatment. Clinical microcomputed tomography and histological analysis confirmed the effectiveness of the treatment. We thus suggest that macrophage-biomimetic M@P-siRNAsT/I and their analogs assisted by PA imaging could provide a new strategy for RA diagnosis, treatment, and monitoring.
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Goh Y, Balasundaram G, Tan HM, Putti TC, Ng CWQ, Fang E, Bi R, Tang SW, Buhari SA, Hartman M, Chan CW, Lim YT, Olivo M, Quek ST. Photoacoustic Tomography Appearance of Fat Necrosis: A First-in-Human Demonstration of Biochemical Signatures along with Histological Correlation. Diagnostics (Basel) 2022; 12:diagnostics12102456. [PMID: 36292144 PMCID: PMC9600102 DOI: 10.3390/diagnostics12102456] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/06/2022] [Accepted: 10/10/2022] [Indexed: 11/17/2022] Open
Abstract
A 50-year-old woman with no past medical history presented with a left anterior chest wall mass that was clinically soft, mobile, and non-tender. A targeted ultrasound (US) showed findings suggestive of a lipoma. However, focal “mass-like” nodules seen within the inferior portion suggested malignant transformation of a lipomatous lesion called for cross sectional imaging, such as MRI or invasive biopsy or excision for histological confirmation. A T1-weighted image demonstrated a large lipoma that has a central fat-containing region surrounded by an irregular hypointense rim in the inferior portion, confirming the benignity of the lipoma. An ultrasound-guided photoacoustic imaging (PA) of the excised specimen to derive the biochemical distribution demonstrated the “mass-like” hypoechoic regions on US as fat-containing, suggestive of benignity of lesion, rather than fat-replacing suggestive of malignancy. The case showed the potential of PA as an adjunct to US in improving the diagnostic confidence in lesion characterization.
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Affiliation(s)
- Yonggeng Goh
- Department of Diagnostic Imaging, National University Hospital, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Ghayathri Balasundaram
- Translational Biophotonics Laboratory, Institute of Bioengineering & Bioimaging, Agency for Science, Technology & Research, 11 Biopolis Way, #02-02 Helios, Singapore 138667, Singapore
| | - Hui Min Tan
- Department of Pathology, National University Hospital, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Thomas Choudary Putti
- Department of Pathology, National University Hospital, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Celene Wei Qi Ng
- Department of Breast Surgery, National University Hospital, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Eric Fang
- Department of Diagnostic Imaging, National University Hospital, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Renzhe Bi
- Translational Biophotonics Laboratory, Institute of Bioengineering & Bioimaging, Agency for Science, Technology & Research, 11 Biopolis Way, #02-02 Helios, Singapore 138667, Singapore
| | - Siau Wei Tang
- Department of Breast Surgery, National University Hospital, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Shaik Ahmad Buhari
- Department of Breast Surgery, National University Hospital, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Mikael Hartman
- Department of Breast Surgery, National University Hospital, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Ching Wan Chan
- Department of Breast Surgery, National University Hospital, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Yi Ting Lim
- Department of Diagnostic Imaging, National University Hospital, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Malini Olivo
- Translational Biophotonics Laboratory, Institute of Bioengineering & Bioimaging, Agency for Science, Technology & Research, 11 Biopolis Way, #02-02 Helios, Singapore 138667, Singapore
- Correspondence: (M.O.); (S.T.Q.); Tel.: +65-6478 7018 (M.O.)
| | - Swee Tian Quek
- Department of Diagnostic Imaging, National University Hospital, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
- Correspondence: (M.O.); (S.T.Q.); Tel.: +65-6478 7018 (M.O.)
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Gonzalez EA, Lediju Bell MA. Dual-wavelength photoacoustic atlas method to estimate fractional methylene blue and hemoglobin contents. J Biomed Opt 2022; 27:JBO-220093GR. [PMID: 36050818 PMCID: PMC9433893 DOI: 10.1117/1.jbo.27.9.096002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 08/03/2022] [Indexed: 06/15/2023]
Abstract
SIGNIFICANCE Methylene blue (MB) is an exogenous contrast agent that has the potential to assist with visualization and penetration challenges in photoacoustic imaging. However, monitoring the local concentration between MB and endogenous chromophores is critical for avoiding unnecessary MB accumulations that could lead to adverse effects such as hemolysis when exposed to increased dose and photodamage when exposed to high laser energies. AIM We developed a modified version of a previously proposed acoustic-based atlas method to estimate concentration levels from a mixture of two photoacoustic-sensitive materials after two laser wavelength emissions. APPROACH Photoacoustic data were acquired from mixtures of 100-μM MB and either human or porcine blood (Hb) injected in a plastisol phantom, using laser wavelengths of 710 and 870 nm. An algorithm to perform linear regression of the acoustic frequency response from an atlas composed of pure concentrations was designed to assess the concentration levels from photoacoustic samples obtained from 11 known MB/Hb volume mixtures. The mean absolute error (MAE), coefficient of determination (i.e., R2), and Spearman's correlation coefficient (i.e., ρ) between the estimated results and ground-truth labels were calculated to assess the algorithm performance, linearity, and monotonicity, respectively. RESULTS The overall MAE, R2, and ρ were 12.68%, 0.80, and 0.89, respectively, for the human Hb dataset and 9.92%, 0.86, and 0.93, respectively, for the porcine Hb dataset. In addition, a similarly linear relationship was observed between the acoustic frequency response at 2.3 MHz and 870-nm laser wavelength and the ground-truth concentrations, with R2 and | ρ | values of 0.76 and 0.88, respectively. CONCLUSIONS Contrast agent concentration monitoring is feasible with the proposed approach. The potential for minimal data acquisition times with only two wavelength emissions is advantageous toward real-time implementation in the operating room.
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Affiliation(s)
- Eduardo A. Gonzalez
- Johns Hopkins University, School of Medicine, Department of Biomedical Engineering, Baltimore, Maryland, United States
| | - Muyinatu A. Lediju Bell
- Johns Hopkins University, School of Medicine, Department of Biomedical Engineering, Baltimore, Maryland, United States
- Johns Hopkins University, Whiting School of Engineering, Department of Electrical and Computer Engineering, Baltimore, Maryland, United States
- Johns Hopkins University, Whiting School of Engineering, Department of Computer Science, Baltimore, Maryland, United States
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Yoon C, Kang J, Song TK, Chang JH. Elevational Synthetic Aperture Focusing for Three-Dimensional Photoacoustic Imaging Using a Clinical One-Dimensional Array Transducer. IEEE Trans Biomed Eng 2022; 69:2817-2825. [PMID: 35226597 PMCID: PMC9520468 DOI: 10.1109/tbme.2022.3154754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
OBJECTIVE Two-dimensional (2D) photoacoustic (PA) imaging based on array transducers provide high spatial resolution in the lateral direction by adopting receive dynamic focusing. However, the quality of PA image is often deteriorated by poor elevational resolution which is achieved by an acoustic lens. To overcome this limitation, we present a three-dimensional (3D) image reconstruction method using a commercial one-dimensional (1D) array transducer. METHODS In the method, the elevational resolution is improved by applying synthetic aperture focusing (SAF) technique along the elevational direction. For this, a commercially available 1D array transducer with an acoustic lens is modeled and appropriate synthetic focusing delay that can minimize the effect of the acoustic lens is derived by mathematical analysis. RESULTS From the simulation and experiment results, it was demonstrated that the proposed method can enhance the image quality of PA imaging, i.e., elevational resolution and signal-to-noise ratio (SNR). CONCLUSION 3D PA images with improved elevational resolution were achieved using a clinical 1D array transducer. SIGNIFICANCE The presented method may be useful for clinical application such as detecting microcalcification, imaging of tumor vasculature and guidance of biopsy in real time.
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Kang X, Li Y, Yin S, Li W, Qi J. Reactive Species-Activatable AIEgens for Biomedical Applications. Biosensors (Basel) 2022; 12:bios12080646. [PMID: 36005044 PMCID: PMC9406055 DOI: 10.3390/bios12080646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/11/2022] [Accepted: 08/13/2022] [Indexed: 05/27/2023]
Abstract
Precision medicine requires highly sensitive and specific diagnostic strategies with high spatiotemporal resolution. Accurate detection and monitoring of endogenously generated biomarkers at the very early disease stage is of extensive importance for precise diagnosis and treatment. Aggregation-induced emission luminogens (AIEgens) have emerged as a new type of excellent optical agents, which show great promise for numerous biomedical applications. In this review, we highlight the recent advances of AIE-based probes for detecting reactive species (including reactive oxygen species (ROS), reactive nitrogen species (RNS), reactive sulfur species (RSS), and reactive carbonyl species (RCS)) and related biomedical applications. The molecular design strategies for increasing the sensitivity, tuning the response wavelength, and realizing afterglow imaging are summarized, and theranostic applications in reactive species-related major diseases such as cancer, inflammation, and vascular diseases are reviewed. The challenges and outlooks for the reactive species-activatable AIE systems for disease diagnostics and therapeutics are also discussed. This review aims to offer guidance for designing AIE-based specifically activatable optical agents for biomedical applications, as well as providing a comprehensive understanding about the structure-property application relationships. We hope it will inspire more interesting researches about reactive species-activatable probes and advance clinical translations.
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Affiliation(s)
- Xiaoying Kang
- State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Center for Cell Responses, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yue Li
- State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Center for Cell Responses, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Shuai Yin
- State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Center for Cell Responses, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Wen Li
- Tianjin Key Laboratory of Biomedical Materials, Key Laboratory of Biomaterials and Nanotechnology for Cancer Immunotherapy, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Ji Qi
- State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Center for Cell Responses, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
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Mahmud M, Islam MS, Ahmed A, Younis M, Choa FS. Cross-Medium Photoacoustic Communications: Challenges, and State of the Art. Sensors (Basel) 2022; 22:4224. [PMID: 35684851 DOI: 10.3390/s22114224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 05/25/2022] [Accepted: 05/30/2022] [Indexed: 12/07/2022]
Abstract
The current era is notably characterized by the major advances in communication technologies. The increased connectivity has been transformative in terrestrial, space, and undersea applications. Nonetheless, the water medium imposes unique constraints on the signals that can be pursued for establishing wireless links. While numerous studies have been dedicated to tackling the challenges for underwater communication, little attention has been paid to effectively interfacing the underwater networks to remote entities. Particularly it has been conventionally assumed that a surface node will be deployed to act as a relay using acoustic links for underwater nodes and radio links for air-based communication. Yet, such an assumption could be, in fact, a hindrance in practice. The paper discusses alternative means by allowing communication across the air-water interface. Specifically, the optoacoustic effect, also referred to as photoacoustic effect, is being exploited as a means for achieving connectivity between underwater and airborne nodes. The paper provides background, discusses technical challenges, and summarizes progress. Open research problems are also highlighted.
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Asao Y, Nagae K, Miyasaka K, Sekiguchi H, Aiso S, Watanabe S, Sato M, Kizaka-Kondoh S, Nakajima Y, Kishi K, Yagi T. In Vivo Label-Free Observation of Tumor-Related Blood Vessels in Small Animals Using a Newly Designed Photoacoustic 3D Imaging System. Ultrason Imaging 2022; 44:96-104. [PMID: 35549598 PMCID: PMC9207988 DOI: 10.1177/01617346221099201] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Photoacoustic (PA) technology can be used for non-invasive imaging of blood vessels. In this paper, we report on our prototype PA imaging system with a newly designed ultrasound sensor and its visualization performance of microvascular in animal. We fabricated an experimental system for animals using a high-frequency sensor. The system has two modes: still image mode by wide scanning and moving image mode by small rotation of sensor array. Optical test target, euthanized mice and rats, and live mice were used as objects. The results of optical test target showed that the spatial resolution was about two times higher than that of our conventional prototype. The image performance in vivo was evaluated in euthanized healthy mice and rats, allowing visualization of detailed blood vessels in the liver and kidneys. In tumor-bearing mice, different results of vascular induction were shown depending on the type of tumor and the method of transplantation. By utilizing the video imaging function, we were able to observe the movement of blood vessels around the tumor. We have demonstrated the feasibility of the system as a less invasive animal experimental device, as it can acquire vascular images in animals in a non-contrast and non-invasive manner.
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Affiliation(s)
| | | | | | | | | | | | - Marika Sato
- Tokyo Institute of Technology, Yokohama, Kanagawa, Japan
| | | | | | - Kazuo Kishi
- Keio University School of Medicine, Tokyo, Japan
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Benyamin M, Zalevsky Z. All Optical Speckle Contrast-Based Vibration Sensor for Photoacoustic Signal Detection. Sensors (Basel) 2022; 22:3250. [PMID: 35590940 PMCID: PMC9102577 DOI: 10.3390/s22093250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/17/2022] [Accepted: 04/21/2022] [Indexed: 06/15/2023]
Abstract
Remote detection of photoacoustic signals is a well desired ability, enabling to perform advanced imaging in scenarios where contact is not possible. Various unique solutions have been suggested, including a camera-based speckle contrast photoacoustic detection. In this manuscript, a significant upgrade to the camera-based speckle contrast approach is presented and experimentally demonstrated. This solution is based on all-optical vibration sensing setup. The technique is based on spectral estimation of speckle pattern contrast and relies on several pre-developed works. First, it relies on the suggested application of speckle contrast to vibration sensing, and then on the realization of intensity pattern spectral manipulation, using a shearing interferometer. The method is evaluated and compared to traditional contrast estimation, and demonstrated in several applications in various vibration frequency band such as photoacoustic signal analysis and phonocardiographic heart sounds. The method is also applicable to measuring contrast changes due to a general speckle changing behavior, rather than surface vibration alone.
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Affiliation(s)
- Matan Benyamin
- Faculty of Engineering and the Nanotechnology Center, Bar Ilan University, Ramat Gan 5290002, Israel;
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Yu Z, He Y, Schomann T, Wu K, Hao Y, Suidgeest E, Zhang H, Eich C, Cruz LJ. Achieving Effective Multimodal Imaging with Rare-Earth Ion-Doped CaF 2 Nanoparticles. Pharmaceutics 2022; 14:840. [PMID: 35456674 PMCID: PMC9024546 DOI: 10.3390/pharmaceutics14040840] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/06/2022] [Accepted: 04/08/2022] [Indexed: 01/16/2023] Open
Abstract
Nowadays, cancer poses a significant hazard to humans. Limitations in early diagnosis techniques not only result in a waste of healthcare resources but can even lead to delays in diagnosis and treatment, consequently reducing cure rates. Therefore, it is crucial to develop an imaging probe that can provide diagnostic information precisely and rapidly. Here, we used a simple hydrothermal method to design a multimodal imaging probe based on the excellent properties of rare-earth ions. Calcium fluoride co-doped with ytterbium, gadolinium, and neodymium (CaF2:Y,Gd,Nd) nanoparticles (NPs) is highly crystalline, homogeneous in morphology, and displays a high biosafety profile. In addition, in vitro and ex vivo experiments explored the multimodal imaging capability of CaF2:Y,Gd,Nd and demonstrated the efficient performance of CaF2:Y,Gd,Nd during NIR-II fluorescence/photoacoustic/magnetic resonance imaging. Collectively, our novel diagnosis nanoparticle will generate new ideas for the development of multifunctional nanoplatforms for disease diagnosis and treatment.
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Affiliation(s)
- Zhenfeng Yu
- Translational Nanobiomaterials and Imaging Group, Department of Radiology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (Z.Y.); (Y.H.); (T.S.); (Y.H.)
| | - Yuanyuan He
- Translational Nanobiomaterials and Imaging Group, Department of Radiology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (Z.Y.); (Y.H.); (T.S.); (Y.H.)
| | - Timo Schomann
- Translational Nanobiomaterials and Imaging Group, Department of Radiology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (Z.Y.); (Y.H.); (T.S.); (Y.H.)
- Percuros B.V., Zernikedreef 8, 2333 CL Leiden, The Netherlands
| | - Kefan Wu
- Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands; (K.W.); (H.Z.)
| | - Yang Hao
- Translational Nanobiomaterials and Imaging Group, Department of Radiology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (Z.Y.); (Y.H.); (T.S.); (Y.H.)
| | - Ernst Suidgeest
- C.J. Gorter Center for High Field MRI, Department of Radiology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands;
| | - Hong Zhang
- Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands; (K.W.); (H.Z.)
| | - Christina Eich
- Translational Nanobiomaterials and Imaging Group, Department of Radiology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (Z.Y.); (Y.H.); (T.S.); (Y.H.)
| | - Luis J. Cruz
- Translational Nanobiomaterials and Imaging Group, Department of Radiology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (Z.Y.); (Y.H.); (T.S.); (Y.H.)
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Zheng N, Fitzpatrick V, Cheng R, Shi L, Kaplan DL, Yang C. Photoacoustic Carbon Nanotubes Embedded Silk Scaffolds for Neural Stimulation and Regeneration. ACS Nano 2022; 16:2292-2305. [PMID: 35098714 DOI: 10.1021/acsnano.1c08491] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Neural interfaces using biocompatible scaffolds provide crucial properties, such as cell adhesion, structural support, and mass transport, for the functional repair of nerve injuries and neurodegenerative diseases. Neural stimulation has also been found to be effective in promoting neural regeneration. This work provides a generalized strategy to integrate photoacoustic (PA) neural stimulation into hydrogel scaffolds using a nanocomposite hydrogel approach. Specifically, polyethylene glycol (PEG)-functionalized carbon nanotubes (CNT), highly efficient photoacoustic agents, are embedded into silk fibroin to form biocompatible and soft photoacoustic materials. We show that these photoacoustic functional scaffolds enable nongenetic activation of neurons with a spatial precision defined by the area of light illumination, promoting neuron regeneration. These CNT/silk scaffolds offered reliable and repeatable photoacoustic neural stimulation, and 94% of photoacoustic-stimulated neurons exhibit a fluorescence change larger than 10% in calcium imaging in the light-illuminated area. The on-demand photoacoustic stimulation increased neurite outgrowth by 1.74-fold in a rat dorsal root ganglion model, when compared to the unstimulated group. We also confirmed that promoted neurite outgrowth by photoacoustic stimulation is associated with an increased concentration of neurotrophic factor (BDNF). As a multifunctional neural scaffold, CNT/silk scaffolds demonstrated nongenetic PA neural stimulation functions and promoted neurite outgrowth, providing an additional method for nonpharmacological neural regeneration.
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Affiliation(s)
| | - Vincent Fitzpatrick
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | | | | | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
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Gassner S, Schaller R, Eberl M, von Koblinski C, Essing S, Ghaderi M, Schmitt K, Wöllenstein J. Anodically Bonded Photoacoustic Transducer: An Approach towards Wafer-Level Optical Gas Sensors. Sensors (Basel) 2022; 22:685. [PMID: 35062646 PMCID: PMC8778516 DOI: 10.3390/s22020685] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/13/2022] [Accepted: 01/14/2022] [Indexed: 02/04/2023]
Abstract
We present a concept for a wafer-level manufactured photoacoustic transducer, suitable to be used in consumer-grade gas sensors. The transducer consists of an anodically bonded two-layer stack of a blank silicon wafer and an 11 µm membrane, which was wet-etched from a borosilicate wafer. The membrane separates two cavities; one of which was hermetically sealed and filled with CO2 during the anodic bonding and acts as an infrared absorber. The second cavity was designed to be connected to a standard MEMS microphone on PCB-level forming an infrared-sensitive photoacoustic detector. CO2 sensors consisting of the detector and a MEMS infrared emitter were built up and characterized towards their sensitivity and noise levels at six different component distance ranging from 3.0 mm to 15.5 mm. The signal response for the sample with the longest absorption path ranged from a decrease of 8.3% at a CO2 concentration of 9400 ppm to a decrease of 0.8% at a concentration of 560 ppm. A standard deviation of the measured values of 18 ppm was determined when the sensor was exposed to 1000 ppm CO2.
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Affiliation(s)
- Simon Gassner
- Department of Microsystems Engineering (IMTEK), Albert-Ludwigs-Universität Freiburg, 79085 Freiburg im Breisgau, Germany; (K.S.); (J.W.)
- Infineon Technologies AG, 81549 Neubiberg, Germany; (R.S.); (M.E.); (M.G.)
| | - Rainer Schaller
- Infineon Technologies AG, 81549 Neubiberg, Germany; (R.S.); (M.E.); (M.G.)
| | - Matthias Eberl
- Infineon Technologies AG, 81549 Neubiberg, Germany; (R.S.); (M.E.); (M.G.)
| | | | - Simon Essing
- Department of Electrical and Computer Engineering, Technical University of Munich, 80333 München, Germany;
| | | | - Katrin Schmitt
- Department of Microsystems Engineering (IMTEK), Albert-Ludwigs-Universität Freiburg, 79085 Freiburg im Breisgau, Germany; (K.S.); (J.W.)
- Fraunhofer IPM, 79110 Freiburg, Germany
| | - Jürgen Wöllenstein
- Department of Microsystems Engineering (IMTEK), Albert-Ludwigs-Universität Freiburg, 79085 Freiburg im Breisgau, Germany; (K.S.); (J.W.)
- Fraunhofer IPM, 79110 Freiburg, Germany
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Liu YH, Brunner LM, Rebling J, Ben-Yehuda Greenwald M, Werner S, Detmar M, Razansky D. Non-invasive longitudinal imaging of VEGF-induced microvascular alterations in skin wounds. Theranostics 2022; 12:558-573. [PMID: 34976201 PMCID: PMC8692907 DOI: 10.7150/thno.65287] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 10/03/2021] [Indexed: 12/19/2022] Open
Abstract
Background: Microcirculation is essential for skin homeostasis and repair. A variety of growth factors have been identified as important regulators of wound healing. However, direct observation and longitudinal monitoring of skin remodeling in an unperturbed in vivo environment remains challenging. Methods: We report on non-invasive longitudinal imaging of the wound healing process in transgenic mice overexpressing vascular endothelial growth factor A (VEGF-A) in keratinocytes by means of large-scale optoacoustic microscopy (LSOM). This rapid, label-free, high throughput intravital microscopy method averts the use of dorsal skin-fold chambers, allowing for fully non-invasive repeated imaging of intact wounds with capillary resolution over field-of-view spanning several centimeters. Results: We observed VEGF-driven enhancement of dermal vascularization in ears, dorsal skin and healing wounds and quantified the hemoglobin content, fill fraction, vessel diameter and tortuosity. The in vivo findings were further corroborated by detailed side-by-side classical histological whole-mount vascular stainings and pan-endothelial CD31 immunofluorescence. Conclusion: The new approach is suitable for supplementing or replacing the cumbersome histological procedures in a broad range of skin regeneration and tissue engineering applications.
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