1
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Sivasubramanian M, Lo LW. Assessment of Nanoparticle-Mediated Tumor Oxygen Modulation by Photoacoustic Imaging. BIOSENSORS 2022; 12:bios12050336. [PMID: 35624636 PMCID: PMC9138624 DOI: 10.3390/bios12050336] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/09/2022] [Accepted: 05/11/2022] [Indexed: 06/01/2023]
Abstract
Photoacoustic imaging (PAI) is an invaluable tool in biomedical imaging, as it provides anatomical and functional information in real time. Its ability to image at clinically relevant depths with high spatial resolution using endogenous tissues as contrast agents constitutes its major advantage. One of the most important applications of PAI is to quantify tissue oxygen saturation by measuring the differential absorption characteristics of oxy and deoxy Hb. Consequently, PAI can be utilized to monitor tumor-related hypoxia, which is a crucial factor in tumor microenvironments that has a strong influence on tumor invasiveness. Reactive oxygen species (ROS)-based therapies, such as photodynamic therapy, radiotherapy, and sonodynamic therapy, are oxygen-consuming, and tumor hypoxia is detrimental to their efficacy. Therefore, a persistent demand exists for agents that can supply oxygen to tumors for better ROS-based therapeutic outcomes. Among the various strategies, NP-mediated supplemental tumor oxygenation is especially encouraging due to its physio-chemical, tumor targeting, and theranostic properties. Here, we focus on NP-based tumor oxygenation, which includes NP as oxygen carriers and oxygen-generating strategies to alleviate hypoxia monitored by PAI. The information obtained from quantitative tumor oxygenation by PAI not only supports optimal therapeutic design but also serves as a highly effective tool to predict therapeutic outcomes.
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2
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Barik CK, Ganguly R, Li Y, Samanta S, Leong WK. Reaction of the Decaosmium Carbido Cluster [Os10(µ6-C)(CO)24]2− with Halostibines. J CLUST SCI 2021. [DOI: 10.1007/s10876-020-01857-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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3
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Koh WX, Coppo L, Holmgren A, Kong JW, Leong WK. Inhibition of Thioredoxin Reductase by Triosmium Carbonyl Clusters. Chem Res Toxicol 2020; 33:2441-2445. [PMID: 32786549 DOI: 10.1021/acs.chemrestox.0c00214] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Tumor cells are characterized by increased reactive oxygen species production in parallel with an enhanced antioxidant system to avoid oxidative damage. The inhibition of antioxidant systems is an effective way to kill cancer cells, and the thioredoxin system or, more specifically, the cytosolic selenocysteine-containing enzyme thioredoxin reductase (TrxR) has become an interesting target for cancer therapy. We show here that the known cytotoxic and apoptosis-inducing osmium carbonyl cluster Os3(CO)10(NCCH3)2 (1) is a nonsubstrate inhibitor of mammalian TrxR, with an IC50 of 5.3 ± 0.9 μM. It inhibits TrxR selectively over the closely related glutathione reductase (GR) and in the presence of excess reduced glutathione (GSH). This inhibition has also been demonstrated in cell lysates, suggesting that TrxR inhibition is a potential apoptotic pathway for 1.
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Affiliation(s)
- Wei Xiang Koh
- Division of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Lucia Coppo
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, MBB/Biokemi-Floor 9A, Solnavägen 9, SE-17165 Solna, Stockholm, Sweden
| | - Arne Holmgren
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, MBB/Biokemi-Floor 9A, Solnavägen 9, SE-17165 Solna, Stockholm, Sweden
| | - Jia Wen Kong
- Division of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Weng Kee Leong
- Division of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
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4
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Carboxylated Chalcone and Benzaldehyde Derivatives of Triosmium Carbonyl Clusters: Synthesis, Characterization and Biological Activity Towards MCF-7 Cells. J CLUST SCI 2020. [DOI: 10.1007/s10876-019-01684-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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5
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Zhou X, Pang X, Nie L, Zhu C, Zhuo K, Zhuo Q, Chen Z, Liu G, Zhang H, Lin Z, Xia H. Successive modification of polydentate complexes gives access to planar carbon- and nitrogen-based ligands. Nat Commun 2019; 10:1488. [PMID: 30940808 PMCID: PMC6445293 DOI: 10.1038/s41467-019-09367-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 03/08/2019] [Indexed: 11/15/2022] Open
Abstract
Polydentate complexes containing combinations of nitrogen and carbon (N and C) ligating atoms are among the most fundamental and ubiquitous molecules in coordination chemistry, yet the formation of such complexes with planar high-coordinate N/C sites remains challenging. Herein, we demonstrate an efficient route to access related complexes with tetradentate CCCN and pentadentate CCCCN and NCCCN cores by successive modification of the coordinating atoms in complexes with a CCCC core. Combined experimental and computational studies reveal that the rich reactivity of metal-carbon bonds and the inherent aromaticity of the metallacyclic skeletons play key roles in these transformations. This strategy addresses the paucity of synthetic approaches to mixed N/C planar pentadentate chelating species and provides valuable insights into the synthesis of carbon-based high-coordinate complexes. Furthermore, the resulting complexes are the examples of organometallic species with combined photoacoustic, photothermal, and sonodynamic properties, which makes them promising for application in related areas.
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Affiliation(s)
- Xiaoxi Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Xin Pang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Centre for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 361102, Xiamen, China
| | - Liming Nie
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Centre for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 361102, Xiamen, China
| | - Congqing Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, China
| | - Kaiyue Zhuo
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Qingde Zhuo
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Zhixin Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Gang Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Centre for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 361102, Xiamen, China
| | - Hong Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China.
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, HK, Hong Kong
| | - Haiping Xia
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
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6
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Fu Q, Zhu R, Song J, Yang H, Chen X. Photoacoustic Imaging: Contrast Agents and Their Biomedical Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1805875. [PMID: 30556205 DOI: 10.1002/adma.201805875] [Citation(s) in RCA: 258] [Impact Index Per Article: 51.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 10/10/2018] [Indexed: 05/20/2023]
Abstract
Photoacoustic (PA) imaging as a fast-developing imaging technique has great potential in biomedical and clinical applications. It is a noninvasive imaging modality that depends on the light-absorption coefficient of the imaged tissue and the injected PA-imaging contrast agents. Furthermore, PA imaging provides superb contrast, super spatial resolution, and high penetrability and sensitivity to tissue functional characteristics by detecting the acoustic wave to construct PA images. In recent years, a series of PA-imaging contrast agents are developed to improve the PA-imaging performance in biomedical applications. Here, recent progress of PA contrast agents and their biomedical applications are outlined. PA contrast agents are classified according to their components and function, and gold nanocrystals, gold-nanocrystal assembly, transition-metal chalcogenides/MXene-based nanomaterials, carbon-based nanomaterials, other inorganic imaging agents, small organic molecules, semiconducting polymer nanoparticles, and nonlinear PA-imaging contrast agents are discussed. The applications of PA contrast agents as biosensors (in the sensing of metal ions, pH, enzymes, temperature, hypoxia, reactive oxygen species, and reactive nitrogen species) and in bioimaging (lymph nodes, vasculature, tumors, and brain tissue) are discussed in detail. Finally, an outlook on the future research and investigation of PA-imaging contrast agents and their significance in biomedical research is presented.
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Affiliation(s)
- Qinrui Fu
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Rong Zhu
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Jibin Song
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Huanghao Yang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
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7
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Roberts S, Andreou C, Choi C, Donabedian P, Jayaraman M, Pratt EC, Tang J, Pérez-Medina C, Jason de la Cruz M, Mulder WJM, Grimm J, Kircher M, Reiner T. Sonophore-enhanced nanoemulsions for optoacoustic imaging of cancer. Chem Sci 2018; 9:5646-5657. [PMID: 30061998 PMCID: PMC6049522 DOI: 10.1039/c8sc01706a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 05/14/2018] [Indexed: 12/14/2022] Open
Abstract
Optoacoustic imaging offers the promise of high spatial resolution and, at the same time, penetration depths well beyond the conventional optical imaging technologies, advantages that would be favorable for a variety of clinical applications. However, similar to optical fluorescence imaging, exogenous contrast agents, known as sonophores, need to be developed for molecularly targeted optoacoustic imaging. Despite numerous optoacoustic contrast agents that have been reported, there is a need for more rational design of sonophores. Here, using a library screening approach, we systematically identified and evaluated twelve commercially available near-infrared (690-900 nm) and highly absorbing dyes for multi-spectral optoacoustic tomography (MSOT). In order to achieve more accurate spectral deconvolution and precise data quantification, we sought five practical mathematical methods, namely direct classical least squares based on UV-Vis (UV/Vis-DCLS) or optoacoustic (OA-DCLS) spectra, non-negative LS (NN-LS), independent component analysis (ICA) and principal component analysis (PCA). We found that OA-DCLS is the most suitable method, allowing easy implementation and sufficient accuracy for routine analysis. Here, we demonstrate for the first time that our biocompatible nanoemulsions (NEs), in combination with near-infrared and highly absorbing dyes, enable non-invasive in vivo MSOT detection of tumors. Specifically, we found that NE-IRDye QC1 offers excellent optoacoustic performance and detection compared to related near-infrared NEs. We demonstrate that when loaded with low fluorescent or dark quencher dyes, NEs represent a flexible and new class of exogenous sonophores suitable for non-invasive pre-clinical optoacoustic imaging.
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Affiliation(s)
- Sheryl Roberts
- Department of Radiology , Memorial Sloan Kettering Cancer Center , New York , NY 10065 , USA .
| | - Chrysafis Andreou
- Department of Radiology , Memorial Sloan Kettering Cancer Center , New York , NY 10065 , USA .
| | - Crystal Choi
- Department of Radiology , Memorial Sloan Kettering Cancer Center , New York , NY 10065 , USA .
| | - Patrick Donabedian
- Department of Radiology , Memorial Sloan Kettering Cancer Center , New York , NY 10065 , USA .
| | - Madhumitha Jayaraman
- Department of Radiology , Memorial Sloan Kettering Cancer Center , New York , NY 10065 , USA .
| | - Edwin C Pratt
- Department of Molecular Pharmacology , Memorial Sloan Kettering Cancer Center , New York , NY 10054 , USA
| | - Jun Tang
- Cancer Research Institute (CRI) , 29 Broadway , New York , NY 10006 , USA
| | - Carlos Pérez-Medina
- Translational and Molecular Imaging Institute , Department of Radiology , Mount Sinai School of Medicine , New York , NY 10029 , USA
| | - M Jason de la Cruz
- Structural Biology Program , Sloan Kettering Institute , Memorial Sloan Kettering Cancer Center , New York , New York 10065 , USA
| | - Willem J M Mulder
- Translational and Molecular Imaging Institute , Department of Radiology , Mount Sinai School of Medicine , New York , NY 10029 , USA
- Department of Medical Biochemistry , Academic Medical Center , Amsterdam , The Netherlands
| | - Jan Grimm
- Department of Radiology , Memorial Sloan Kettering Cancer Center , New York , NY 10065 , USA .
- Department of Molecular Pharmacology , Memorial Sloan Kettering Cancer Center , New York , NY 10054 , USA
- Department of Radiology , Weill Cornell Medical College , New York , NY 10065 , USA
- Pharmacology Program , Weill Cornell Medical College , New York , NY 10065 , USA
| | - Moritz Kircher
- Department of Radiology , Memorial Sloan Kettering Cancer Center , New York , NY 10065 , USA .
- Department of Molecular Pharmacology , Memorial Sloan Kettering Cancer Center , New York , NY 10054 , USA
- Department of Radiology , Weill Cornell Medical College , New York , NY 10065 , USA
| | - Thomas Reiner
- Department of Radiology , Memorial Sloan Kettering Cancer Center , New York , NY 10065 , USA .
- Department of Radiology , Weill Cornell Medical College , New York , NY 10065 , USA
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8
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Batchelor LK, Berti B, Cesari C, Ciabatti I, Dyson PJ, Femoni C, Iapalucci MC, Mor M, Ruggieri S, Zacchini S. Water soluble derivatives of platinum carbonyl Chini clusters: synthesis, molecular structures and cytotoxicity of [Pt 12(CO) 20(PTA) 4] 2- and [Pt 15(CO) 25(PTA) 5] 2- . Dalton Trans 2018; 47:4467-4477. [PMID: 29504622 DOI: 10.1039/c8dt00228b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The reactions of [Pt3n(CO)6n]2- (n = 2-5) homoleptic Chini-type clusters with increasing amounts of 1,3,5-triaza-7-phosphaadamantane (PTA) result in the stepwise substitution of one terminal CO ligand per Pt3 triangular unit up to the formation of [Pt3n(CO)5n(PTA)n]2- (n = 2-5). Competition between the nonredox substitution with retention of the nuclearity and the redox fragmentation to afford lower nuclearity heteroleptic Chini-type clusters is observed as a function of the amount of PTA and the nuclearity of the starting cluster. Because of this, [Pt12(CO)20(PTA)4]2- and [Pt15(CO)25(PTA)5]2- are more conveniently obtained via the oxidation of [Pt9(CO)15(PTA)3]2-. All the new species were spectroscopically characterized, and the structures of [Pt12(CO)20(PTA)4]2- and [Pt15(CO)25(PTA)5]2- were determined by single-crystal X-ray diffraction. These clusters may be viewed as heteroleptic Chini-type clusters composed of stacks of four and five Pt3(μ-CO)3(CO)2(PTA) units, respectively. The solubility in water of [Pt12(CO)20(PTA)4]2- and [Pt15(CO)25(PTA)5]2- has been determined and their cytotoxicity towards human ovarian (A2780) cancer cells and their cisplatin-resistant strain (A2780cisR) has been evaluated.
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Affiliation(s)
- Lucinda K Batchelor
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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9
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Tan MJ, Pan HC, Tan HR, Chai JW, Lim QF, Wong TI, Zhou X, Hong ZY, Liao LD, Kong KV. Flexible Modulation of CO-Release Using Various Nuclearity of Metal Carbonyl Clusters on Graphene Oxide for Stroke Remediation. Adv Healthc Mater 2018; 7. [PMID: 29327505 DOI: 10.1002/adhm.201701113] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 11/29/2017] [Indexed: 11/11/2022]
Abstract
Utilizing the size-dependent adsorption properties of ruthenium carbonyl clusters (Ru-carbon monoxide (CO)) onto graphene oxide (GO), a facile CO-release platform for in situ vasodilation as a treatment for stroke-related vascular diseases is developed. The rate and amount of formation of the CO-release-active RuII (CO)2 species can be modulated by a simple mixing procedure at room temperature. The subsequent thermally induced oxidation of RuII (CO)2 to RuO2 on the GO surface results in the release of CO. Further modulation of thermal and CO-release properties can be achieved via a hybridization of medium- and high-nuclearity of Ru-CO clusters that produces a RuO2 /RuII (CO)2 /6 Ru-CO-GO composite, where 6 Ru-CO-GO provides a photothermally activated reservoir of RuII (CO)2 species and the combined infrared absorption properties of GO and RuO2 provides photothermal response for in situ CO-release. The RuO2 /RuII (CO)2 /6 Ru-CO-GO composite does not produce any cytotoxicity and the efficacy of the composite is further demonstrated in a cortical photothrombotic ischemia rat model.
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Affiliation(s)
- Mein Jin Tan
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Han-Chi Pan
- Institute of Biomedical Engineering and Nanomedicine; National Health Research Institutes; 35 Keyan Road Zhunan Miaoli County 35053 Taiwan
| | - Hui Ru Tan
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Jian Wei Chai
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Qi Feng Lim
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Ten It Wong
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Xiaodong Zhou
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Zi-Yao Hong
- Department of Chemistry; National Taiwan University; Taipei 10617 Taiwan
| | - Lun-De Liao
- Institute of Biomedical Engineering and Nanomedicine; National Health Research Institutes; 35 Keyan Road Zhunan Miaoli County 35053 Taiwan
| | - Kien Voon Kong
- Department of Chemistry; National Taiwan University; Taipei 10617 Taiwan
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10
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11
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Bag A, Ghorai PK. Enhancement of biocompatibility and photoacoustic contrast activity of metal clusters. J Mol Graph Model 2017; 75:220-232. [PMID: 28601707 DOI: 10.1016/j.jmgm.2017.05.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 05/12/2017] [Accepted: 05/16/2017] [Indexed: 01/23/2023]
Abstract
Organometallic carbonyl clusters (OMCC) of group VIII elements are water soluble, bio-compatible and stable high-contrast photoacoustic agents for live cell imaging. But, they have limited application due to weak absorption within 700-1000nm wavelength which is known as the biological window of absorption. In this article, we report that hexa-nuclear iron (Fe6) carbonyl cluster derivatized with sodium thio-propanoate has very good absorption within 700-1600nm wave length. This modeled compound is water soluble and bio-compatible. The bio-compatibility of this compound is tested through cytotoxicity, LogP and metabolic probability at CYP450-2D6 enzyme.
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Affiliation(s)
- Arijit Bag
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur 741246, WB, India
| | - Pradip Kr Ghorai
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur 741246, WB, India.
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12
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Lam Z, Balasundaram G, Kong KV, Chor BY, Goh D, Khezri B, Webster RD, Leong WK, Olivo M. High nuclearity carbonyl clusters as near-IR contrast agents for photoacoustic in vivo imaging. J Mater Chem B 2016; 4:3886-3891. [DOI: 10.1039/c6tb00075d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The high nuclearity osmium carbonyl cluster Na2[Os10(μ6-C)(CO)24] is a good near-IR photoacoustic contrast agent for full body imaging.
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Affiliation(s)
- Zhiyong Lam
- Division of Chemistry and Biological Chemistry
- Nanyang Technological University
- Singapore
- Singapore Bioimaging Consortium
- Agency for Science and Technology and Research (A*STAR)
| | - Ghayathri Balasundaram
- Singapore Bioimaging Consortium
- Agency for Science and Technology and Research (A*STAR)
- Singapore
| | | | - Bo Yang Chor
- Division of Chemistry and Biological Chemistry
- Nanyang Technological University
- Singapore
| | - Douglas Goh
- Singapore Bioimaging Consortium
- Agency for Science and Technology and Research (A*STAR)
- Singapore
| | - Bahareh Khezri
- Division of Chemistry and Biological Chemistry
- Nanyang Technological University
- Singapore
| | - Richard D. Webster
- Division of Chemistry and Biological Chemistry
- Nanyang Technological University
- Singapore
| | - Weng Kee Leong
- Division of Chemistry and Biological Chemistry
- Nanyang Technological University
- Singapore
| | - Malini Olivo
- Singapore Bioimaging Consortium
- Agency for Science and Technology and Research (A*STAR)
- Singapore
- School of Physics
- National University of Ireland
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13
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Synthesis of water-soluble ruthenium clusters by reaction with PTA (1,3,5-triaza-7-phosphaadamantane). J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.06.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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Zhu C, Yang Y, Luo M, Yang C, Wu J, Chen L, Liu G, Wen T, Zhu J, Xia H. Stabilizing Two Classical Antiaromatic Frameworks: Demonstration of Photoacoustic Imaging and the Photothermal Effect in Metalla-aromatics. Angew Chem Int Ed Engl 2015; 54:6181-5. [PMID: 25824395 DOI: 10.1002/anie.201501349] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Indexed: 11/06/2022]
Abstract
Antiaromatic species are substantially less thermodynamically stable than aromatic moieties. Herein, we report the stabilization of two classical antiaromatic frameworks, cyclobutadiene and pentalene, by introducing one metal fragment through the first [2+2] cycloaddition reaction of a late-transition-metal carbyne with alkynes. Experimental observations and theoretical calculations reveal that the metal fragment decreases the antiaromaticity in cyclobutadiene and pentalene simultaneously, leading to air- and moisture-stable products. These molecules show broad absorption from the UV to the near-IR region, resulting in photoacoustic and photothermal effects for metalla-aromatic compounds for the first time. These results will encourage further efforts into the exploration of organometallic compounds for photoacoustic-imaging-guided photothermal therapy.
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Affiliation(s)
- Congqing Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China) http://junzhu.chem8.org/ http://chem.xmu.edu.cn/group/hpxia/index.htm
| | - Yuhui Yang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China) http://junzhu.chem8.org/ http://chem.xmu.edu.cn/group/hpxia/index.htm
| | - Ming Luo
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China) http://junzhu.chem8.org/ http://chem.xmu.edu.cn/group/hpxia/index.htm
| | - Caixia Yang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102 (China)
| | - Jingjing Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China) http://junzhu.chem8.org/ http://chem.xmu.edu.cn/group/hpxia/index.htm
| | - Lina Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China) http://junzhu.chem8.org/ http://chem.xmu.edu.cn/group/hpxia/index.htm
| | - Gang Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102 (China)
| | - Tingbin Wen
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China) http://junzhu.chem8.org/ http://chem.xmu.edu.cn/group/hpxia/index.htm
| | - Jun Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China) http://junzhu.chem8.org/ http://chem.xmu.edu.cn/group/hpxia/index.htm.
| | - Haiping Xia
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China) http://junzhu.chem8.org/ http://chem.xmu.edu.cn/group/hpxia/index.htm.
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Zhu C, Yang Y, Luo M, Yang C, Wu J, Chen L, Liu G, Wen T, Zhu J, Xia H. Stabilizing Two Classical Antiaromatic Frameworks: Demonstration of Photoacoustic Imaging and the Photothermal Effect in Metalla-aromatics. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501349] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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16
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Bag A, Ghorai PK. Computational investigation of the ligand field effect to improve the photoacoustic properties of organometallic carbonyl clusters. RSC Adv 2015. [DOI: 10.1039/c5ra01757b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Organometallic nitrosyl carbonyl clusters are stable and better high-contrast photoacoustic contrast agents (PACAs) than organometallic carbonyl clusters.
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Affiliation(s)
- Arijit Bag
- Indian Institute of Science Education and Research Kolkata
- India
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17
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Rare-Earth doped particles as dual-modality contrast agent for minimally-invasive luminescence and dual-wavelength photoacoustic imaging. Sci Rep 2014; 4:6562. [PMID: 25297843 PMCID: PMC4190509 DOI: 10.1038/srep06562] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 09/12/2014] [Indexed: 11/17/2022] Open
Abstract
Multi-modal imaging is an emerging area that integrates multiple imaging modalities to simultaneously capture visual information over many spatial scales. Complementary contrast agents need to be co-developed in order to achieve high resolution and contrast. In this work, we demonstrated that rare-earth doped particles (REDPs) can be employed as dual-modal imaging agents for both luminescence and photoacoustic (PA) imaging to achieve intrinsic high contrast, temporal and spatial resolution, reaching deeper depth. REDPs synthesized with different surfactants (citric acid, polyacrylic acid, ethylenediaminetetraacetic acid and sodium citrate) exhibit tunable emission properties and PA signal amplitudes. Amongst these samples, sodium citrate-modified REDPs showed the strongest PA signals. Furthermore, since REDPs have multiple absorption peaks, they offer a unique opportunity for multi-wavelength PA imaging (e.g. PA signals were measured using 520 and 975 nm excitations). The in vivo PA images around the cortical superior sagittal sinus (SSS) blood vessel captured with enhanced signal arising from REDPs demonstrated that in addition to be excellent luminescent probes, REDPs can also be used as successful PA contrast agents. Anisotropic polyacrylic acid-modified REDPs were found to be the best candidates for dual-modal luminescence and PA imaging due to their strong luminescence and PA signal intensities.
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