1
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Kamya E, Lu Z, Cao Y, Pei R. Effective design of organic luminogens for near-infrared-II fluorescence imaging and photo-mediated therapy. J Mater Chem B 2022; 10:9770-9788. [PMID: 36448479 DOI: 10.1039/d2tb01903e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Due to their electron coupling capability, organic luminescent materials exhibit powerful optoelectronic features that are responsible for their light-harvesting and light-amplification properties. The extensive modification of conjugated systems has shown significant improvement in their photonic properties thus broadening their applicability in photo-mediated imaging and photo-based treatment. Organic luminogens with emission in the near-infrared second region are found attractive not only for their deeper penetrating power but also for accurate visual imaging superiority with higher temporal resolution and spatial resolution suitable for tumor precision treatment. In this review, we underscore the latest development in organic luminogens (conjugated polymers and small molecules), focusing on chemical design, molecular engineering, and their applications in the scope of bioimaging followed by photo-assisted treatment, including photodynamic therapy (PDT), photothermal therapy (PTT), and immunotherapy ablation. Organic luminogens integrated with an aggregation-induced emission feature significantly optimize their physicochemical properties to act as quintessential nanoplatforms for controllable image-guided therapy. In conclusion, we clarify the limitations and challenges and provide insights into how to design organic dyes with improved safety for potential clinical applications.
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Affiliation(s)
- Edward Kamya
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China (USTC), Hefei, 230026, People's Republic of China. .,CAS Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Science, Suzhou, 215123, People's Republic of China
| | - Zhongzhong Lu
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China (USTC), Hefei, 230026, People's Republic of China. .,CAS Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Science, Suzhou, 215123, People's Republic of China
| | - Yi Cao
- CAS Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Science, Suzhou, 215123, People's Republic of China
| | - Renjun Pei
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China (USTC), Hefei, 230026, People's Republic of China. .,CAS Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Science, Suzhou, 215123, People's Republic of China
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2
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Mu J, Xiao M, Shi Y, Geng X, Li H, Yin Y, Chen X. The Chemistry of Organic Contrast Agents in the NIR‐II Window. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114722] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jing Mu
- Institute of Precision Medicine Peking University Shenzhen Hospital Shenzhen 518036 China
| | - Ming Xiao
- Institute of Precision Medicine Peking University Shenzhen Hospital Shenzhen 518036 China
| | - Yu Shi
- Institute of Precision Medicine Peking University Shenzhen Hospital Shenzhen 518036 China
| | - Xuewen Geng
- Department of Biology University of Rochester Rochester NY 14627 USA
| | - Hui Li
- Institute of Precision Medicine Peking University Shenzhen Hospital Shenzhen 518036 China
- Departments of Diagnostic Radiology, Surgery, Chemical and Biomolecular Engineering, and Biomedical Engineering Yong Loo Lin School of Medicine and Faculty of Engineering National University of Singapore Singapore 119074 Singapore
- Nanomedicine Translational Research Program NUS Center for Nanomedicine Yong Loo Lin School of Medicine National University of Singapore Singapore 117597 Singapore
| | - Yuxin Yin
- Institute of Precision Medicine Peking University Shenzhen Hospital Shenzhen 518036 China
| | - Xiaoyuan Chen
- Departments of Diagnostic Radiology, Surgery, Chemical and Biomolecular Engineering, and Biomedical Engineering Yong Loo Lin School of Medicine and Faculty of Engineering National University of Singapore Singapore 119074 Singapore
- Clinical Imaging Research Centre Centre for Translational Medicine Yong Loo Lin School of Medicine National University of Singapore Singapore 117599 Singapore
- Nanomedicine Translational Research Program NUS Center for Nanomedicine Yong Loo Lin School of Medicine National University of Singapore Singapore 117597 Singapore
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3
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Mu J, Xiao M, Shi Y, Geng X, Li H, Yin Y, Chen X. The Chemistry of Organic Contrast Agents in the NIR-II Window. Angew Chem Int Ed Engl 2021; 61:e202114722. [PMID: 34873810 DOI: 10.1002/anie.202114722] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Indexed: 11/08/2022]
Abstract
Optical imaging, especially fluorescence and photoacoustic imaging, possesses non-invasiveness, high spatial and temporal resolution, and high sensitivity, etc., compared to positron emission tomography (PET) or magnetic resonance imaging (MRI). Due to the merits from the second near infrared (NIR-II) window imaging, like deeper penetration depth, high signal-to-noise ratio, high resolution, and low tissue damage, researchers devote great efforts to develop contrast agents with NIR-II absorption or emission. In this review, we summarized recently developed organic luminescent and photoacoustic materials, ranging from small molecules to conjugated polymers. Then, we systematically introduced engineering strategies and their imaging performance, classified by the skeleton cores. Finally, we elucidated the challenges and prospective of these NIR-II organic dyes for potential clinical applications. We hope our summary can inspire further development of NIR-II contrast agents.
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Affiliation(s)
- Jing Mu
- Peking University Shenzhen Hospital, Institute of Precision Medicine, CHINA
| | - Ming Xiao
- Peking University Shenzhen Hospital, Institute of Precision Medicine, CHINA
| | - Yu Shi
- Peking University Shenzhen Hospital, Institute of Precision Medicine, CHINA
| | - Xuewen Geng
- University of Rochester, Department of Biology, UNITED STATES
| | - Hui Li
- Peking University Shenzhen Hospital, Institute of Precision Medicine, CHINA
| | - Yuxin Yin
- Peking University Shenzhen Hospital, Institute of Precision Medicine, CHINA
| | - Xiaoyuan Chen
- National University of Singapore, School of Medicine and Faculty of Engineering, 10 Medical Dr, 117597, Singapore, SINGAPORE
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4
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Zhang J, Ning L, Zeng Z, Pu K. Development of Second Near-Infrared Photoacoustic Imaging Agents. TRENDS IN CHEMISTRY 2021. [DOI: 10.1016/j.trechm.2021.01.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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5
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Xu Y, Yang Y, Yin Z, Cai X, Xia X, Donovan MJ, Chen L, Chen Z, Tan W. In Situ Gastric pH Imaging with Hydrogel Capsule Isolated Paramagnetic Metallo-albumin Complexes. Anal Chem 2021; 93:5939-5946. [PMID: 33787234 DOI: 10.1021/acs.analchem.1c00538] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abnormal gastric pH (pH > 3) has instructive significance for early diagnosis of various diseases, including cancer. However, for low patient compliance, limited penetration depth, high dependence on physiological function or unsafety issue, in situ noninvasive monitoring gastric pH is challenged. Herein, we developed a hydrogel capsule isolated human serum albumin-manganese complex (HSA-Mn) for in situ magnetic resonance imaging (MRI) gastric pH monitoring for the first time. In this strategy, the rotation motion restriction of Mn2+ after binding to HSA significantly increased the R1 (longitudinal relaxation rate) signal, and its high correlation with protonation imparted the HSA-Mn system sensitive responsiveness to varying pH (R1(pH 7)/R1(pH 1) = 8.2). Moreover, a screw jointed hydrogel capsule with signal confinement and internal standard abilities was designed. Such a nanoporous hydrogel capsule with size selectivity to surrounding molecules enabled a stable and sensitive response to different pH simulated gastric fluid within 0.5 h. In addition, with the unique structural outline and stable MRI characteristics, the capsule could also work as an internal standard, which facilitates the collection of signals and trace of the capsule in vivo. Through validating in a rabbit model, the precise abnormal gastric pH recognition capacity of the HSA-Mn hydrogel capsule was amply confirmed. Hence, the hydrogel capsule isolated HSA-Mn system strategy with great biocompatibility could be expected to be a potent tool for in situ anti-disturbance MRI of gastric pH in future clinical application.
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Affiliation(s)
- Yiting Xu
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan 410082, China
| | - Yanxia Yang
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan 410082, China
| | - Zhiwei Yin
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan 410082, China
| | - Xinqi Cai
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan 410082, China
| | - Xin Xia
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan 410082, China
| | - Michael J Donovan
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan 410082, China
| | - Long Chen
- Faculty of Science and Technology, University of Macau, Avenida da Universidade, Taipa 999078, Macau
| | - Zhuo Chen
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan 410082, China
| | - Weihong Tan
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan 410082, China.,The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
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6
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Zhou C, Zhang L, Sun T, Zhang Y, Liu Y, Gong M, Xu Z, Du M, Liu Y, Liu G, Zhang D. Activatable NIR-II Plasmonic Nanotheranostics for Efficient Photoacoustic Imaging and Photothermal Cancer Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2006532. [PMID: 33283355 DOI: 10.1002/adma.202006532] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 10/28/2020] [Indexed: 05/18/2023]
Abstract
Precise manipulation of optical properties through the structure-evolution of plasmonic nanoparticles is of great interest in biomedical fields including bioimaging and phototherapy. However, previous success has been limited to fixed assembled structures or visible-NIR-I absorption. Here, an activatable NIR-II plasmonic theranostics system based on silica-encapsulated self-assembled gold nanochains (AuNCs@SiO2 ) for accurate tumor diagnosis and effective treatment is reported. This transformable chain structure breaks through the traditional molecular imaging window, whose absorption can be redshifted from the visible to the NIR-II region owing to the fusion between adjacent gold nanoparticles in the restricted local space of AuNCs@SiO2 triggered by the high H2 O2 level in the tumor microenvironment (TME), leading to the generation of a new string-like structure with strong NIR-II absorption, which is further confirmed by finite-difference-time-domain (FDTD) simulation. With the TME-activated characteristics, AuNCs@SiO2 exhibits excellent properties for photoacoustic imaging and a high photothermal conversion efficiency of 82.2% at 1064 nm leading to severe cell death and remarkable tumor growth inhibition in vivo. These prominent intelligent TME-responsive features of AuNCs@SiO2 may open up a new avenue to explore optical regulated nano-platform for intelligent, accurate, and noninvasive theranostics in NIR-II window.
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Affiliation(s)
- Chunyu Zhou
- Department of Radiology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, P. R. China
| | - Liang Zhang
- Department of Radiology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, P. R. China
| | - Tao Sun
- Department of Radiology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, P. R. China
| | - Yang Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, P. R. China
| | - Yiding Liu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, P. R. China
| | - Mingfu Gong
- Department of Radiology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, P. R. China
| | - Zhongsheng Xu
- Department of Radiology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, P. R. China
| | - Mengmeng Du
- Department of Radiology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, P. R. China
| | - Yun Liu
- Department of Radiology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, P. R. China
| | - Gang Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, P. R. China
| | - Dong Zhang
- Department of Radiology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, P. R. China
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7
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Upputuri PK, Pramanik M. Recent advances in photoacoustic contrast agents for in vivo imaging. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2020; 12:e1618. [DOI: 10.1002/wnan.1618] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 12/31/2019] [Accepted: 01/16/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Paul Kumar Upputuri
- School of Chemical and Biomedical Engineering Nanyang Technological University Singapore Singapore
| | - Manojit Pramanik
- School of Chemical and Biomedical Engineering Nanyang Technological University Singapore Singapore
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8
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Sharma A, Srishti, Periyasamy V, Pramanik M. Photoacoustic imaging depth comparison at 532-, 800-, and 1064-nm wavelengths: Monte Carlo simulation and experimental validation. JOURNAL OF BIOMEDICAL OPTICS 2019; 24:121904. [PMCID: PMC7005538 DOI: 10.1117/1.jbo.24.12.121904] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 07/18/2019] [Indexed: 07/30/2023]
Abstract
Photoacoustic imaging (PAI) provides high-resolution and high-optical-contrast imaging beyond optical diffusion limit. Further improvement in imaging depth has been achieved by using near-infrared window-I (NIR-I, 700 to 900 nm) for illumination, due to lower scattering and absorption by tissues in this wavelength range. Recently, near-infrared window-II (NIR-II, 900 to 1700 nm) has been explored for PAI. We studied the imaging depths in biological tissues for different illumination wavelengths in visible, NIR-I, and NIR-II regions using Monte Carlo (MC) simulations and validated with experimental results. MC simulations were done to compute fluence in tissue, absorbance in blood vessel, and in a spherical absorber (mimicking sentinel lymph node) embedded at different depths in breast tissue. Photoacoustic tomography and acoustic resolution photoacoustic microscopy experiments were conducted to validate the MC results. We demonstrate that maximum imaging depth is achieved by wavelengths in NIR-I window (∼800 nm) when the energy density deposited is same for all wavelengths. However, illumination using wavelengths around 1064 nm (NIR-II window) gives the maximum imaging depth when the energy density deposited is proportional to maximum permissible exposure (MPE) at corresponding wavelength. These results show that it is the higher MPE of NIR-II window that helps in increasing the PAI depth for chromophores embedded in breast tissue.
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Affiliation(s)
- Arunima Sharma
- Nanyang Technological University, School of Chemical and Biomedical Engineering, Singapore
| | - Srishti
- Nanyang Technological University, School of Chemical and Biomedical Engineering, Singapore
| | - Vijitha Periyasamy
- Nanyang Technological University, School of Chemical and Biomedical Engineering, Singapore
| | - Manojit Pramanik
- Nanyang Technological University, School of Chemical and Biomedical Engineering, Singapore
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9
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Periyasamy V, Das N, Sharma A, Pramanik M. 1064 nm acoustic resolution photoacoustic microscopy. JOURNAL OF BIOPHOTONICS 2019; 12:e201800357. [PMID: 30511496 DOI: 10.1002/jbio.201800357] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 11/22/2018] [Accepted: 11/30/2018] [Indexed: 05/03/2023]
Abstract
Photoacoustic imaging is a noninvasive imaging technique having the advantages of high-optical contrast and good acoustic resolution at improved imaging depths. Light transport in biological tissues is mainly characterized by strong optical scattering and absorption. Photoacoustic microscopy is capable of achieving high-resolution images at greater depth compared to conventional optical microscopy methods. In this work, we have developed a high-resolution, acoustic resolution photoacoustic microscopy (AR-PAM) system in the near infra-red (NIR) window II (NIR-II, eg, 1064 nm) for deep tissue imaging. Higher imaging depth is achieved as the tissue scattering at 1064 nm is lesser compared to visible or near infrared window-I (NIR-I). Our developed system can provide a lateral resolution of 130 μm, axial resolution of 57 μm, and image up to 11 mm deep in biological tissues. This 1064-AR-PAM system was used for imaging sentinel lymph node and the lymph vessel in rat. Urinary bladder of rat filled with black ink was also imaged to validate the feasibility of the developed system to study deeply seated organs.
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Affiliation(s)
- Vijitha Periyasamy
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
| | - Nandan Das
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
| | - Arunima Sharma
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
| | - Manojit Pramanik
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
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10
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Yang Y, Chen J, Yang Y, Xie Z, Song L, Zhang P, Liu C, Liu J. A 1064 nm excitable semiconducting polymer nanoparticle for photoacoustic imaging of gliomas. NANOSCALE 2019; 11:7754-7760. [PMID: 30949651 DOI: 10.1039/c9nr00552h] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Photoacoustic (PA) imaging in the second near-infrared (NIR-II) window (especially at 1064 nm) has the benefits of low background signal, high spatial resolution and deep tissue penetration. Here we report a semiconducting polymer nanoparticle (PDPPTBZ NP) and demonstrate its potential as a contrast agent for PA imaging of orthotopic brain tumors, using a 1064 nm pulsed laser as a light source. PDPPTBZ NPs have maximum absorption at 1064 nm with a mass extinction coefficient of 43 mL mg-1 cm-1, which is the highest value reported so far in this region. The high photothermal conversion efficiency (67%) and near non-fluorescence impart PDPPTBZ NPs with excellent PA properties. We used PDPPTBZ NP-containing agar gel phantoms even at a low concentration (50 μg mL-1) to successfully image to a depth of 4 cm (of chicken-breast tissue), with an ultralow power fluence (4 mJ cm-2). Furthermore, we could clearly visualize a glioma tumor in a mouse at a depth of 3.8 mm below the skull. This study demonstrates that PDPPTBZ NPs display great potential as a NIR-II PA contrast agent for high quality deep tissue imaging.
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Affiliation(s)
- Yanqing Yang
- Key Laboratory of Flexible Electronics (KLOFE) Institute of Advanced Materials (IAM), Nanjing Tech University (Nianjing Tech), 30 South Puzhu Road, Nanjing 211800, China.
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11
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Upputuri PK, Pramanik M. Photoacoustic imaging in the second near-infrared window: a review. JOURNAL OF BIOMEDICAL OPTICS 2019; 24:1-20. [PMID: 30968648 PMCID: PMC6990072 DOI: 10.1117/1.jbo.24.4.040901] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 03/18/2019] [Indexed: 05/04/2023]
Abstract
Photoacoustic (PA) imaging is an emerging medical imaging modality that combines optical excitation and ultrasound detection. Because ultrasound scatters much less than light in biological tissues, PA generates high-resolution images at centimeters depth. In recent years, wavelengths in the second near-infrared (NIR-II) window (1000 to 1700 nm) have been increasingly explored due to its potential for preclinical and clinical applications. In contrast to the conventional PA imaging in the visible (400 to 700 nm) and the first NIR-I (700 to 1000 nm) window, PA imaging in the NIR-II window offers numerous advantages, including high spatial resolution, deeper penetration depth, reduced optical absorption, and tissue scattering. Moreover, the second window allows a fivefold higher light excitation energy density compared to the visible window for enhancing the imaging depth significantly. We highlight the importance of the second window for PA imaging and discuss the various NIR-II PA imaging systems and contrast agents with strong absorption in the NIR-II spectral region. Numerous applications of NIR-II PA imaging, including whole-body animal imaging and human imaging, are also discussed.
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Affiliation(s)
- Paul Kumar Upputuri
- Nanyang Technological University, School of Chemical and Biomedical Engineering, Singapore
| | - Manojit Pramanik
- Nanyang Technological University, School of Chemical and Biomedical Engineering, Singapore
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12
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Ge X, Fu Q, Bai L, Chen B, Wang R, Gao S, Song J. Photoacoustic imaging and photothermal therapy in the second near-infrared window. NEW J CHEM 2019. [DOI: 10.1039/c9nj01402k] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review summarizes the recent progress of PA imaging and PTT agents in the second NIR window.
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Affiliation(s)
- Xiaoguang Ge
- Department of Nuclear Medicine
- China-Japan Union Hospital of Jilin University
- Changchun
- China
- MOE Key Laboratory for Analytical Science of Food Safety and Biology
| | - Qinrui Fu
- MOE Key Laboratory for Analytical Science of Food Safety and Biology
- College of Chemistry
- Fuzhou University
- Fuzhou 350108
- China
| | - Lin Bai
- Department of Nuclear Medicine
- China-Japan Union Hospital of Jilin University
- Changchun
- China
| | - Bin Chen
- Department of Nuclear Medicine
- China-Japan Union Hospital of Jilin University
- Changchun
- China
| | - Renjie Wang
- Department of Nuclear Medicine
- China-Japan Union Hospital of Jilin University
- Changchun
- China
| | - Shi Gao
- Department of Nuclear Medicine
- China-Japan Union Hospital of Jilin University
- Changchun
- China
| | - Jibin Song
- MOE Key Laboratory for Analytical Science of Food Safety and Biology
- College of Chemistry
- Fuzhou University
- Fuzhou 350108
- China
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13
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Nguyen VP, Li Y, Aaberg M, Zhang W, Wang X, Paulus YM. In Vivo 3D Imaging of Retinal Neovascularization Using Multimodal Photoacoustic Microscopy and Optical Coherence Tomography Imaging. J Imaging 2018; 4:150. [PMID: 31681820 PMCID: PMC6824200 DOI: 10.3390/jimaging4120150] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The pathological process of neovascularization of the retina plays a critical role in causing vision loss in several diseases, including diabetes, retinal vein occlusion, and sickle cell disease. Retinal neovascularization can lead to vitreous hemorrhage and retinal detachment, yet the pathological process of neovascularization is a complex phenomenon under active investigation. Understanding and monitoring retinal neovascularization is critically important in clinical ophthalmology. This study describes a novel multimodal ocular imaging system which combines photoacoustic microscopy (PAM) and a spectral domain optical coherence tomography (SD-OCT) to improve the visualization of retinal neovascularization (RNV), their depth, and the surrounding anatomy in living rabbits. RNV was induced in New Zealand rabbits by intravitreal injection of vascular endothelial growth factor (VEGF). The retinal vasculature before and after injection at various times was monitored and evaluated using multimodal imaging including color fundus photography, fluorescein angiography (FA), OCT, and PAM. In vivo experiments demonstrate that PAM imaging distinctly characterized the location as well as the morphology of individual RNV with high contrast at a safe laser energy of 80 nJ. SD-OCT was used to identify a cross-sectional structure of RNV. In addition, dynamic changes in the retinal morphology and retinal neovascularization were observed at day 4, 5, 6, 7, 9, 11, 14, 28, and day 35 after VEGF injection. PAM demonstrated high-resolution optical absorption of hemoglobin and vascular imaging of the retina and choroid with increased depth of penetration. With the current multimodal imaging system, RNV can be easily visualized in both 2D and 3D angiography. This multimodal ocular imaging system provides improved characterization of the microvasculature in a safe manner in larger rabbit eyes.
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Affiliation(s)
- Van Phuc Nguyen
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI 48105, USA
| | - Yanxiu Li
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI 48105, USA
| | - Michael Aaberg
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI 48105, USA
| | - Wei Zhang
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48105, USA
| | - Xueding Wang
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48105, USA
- Department of Radiology, University of Michigan, Ann Arbor, MI 48105, USA
| | - Yannis M. Paulus
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI 48105, USA
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48105, USA
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