1
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Peng Y, Li Y, Li L, Xie M, Wang Y, Butch CJ. Coating influence on inner shell water exchange: An underinvestigated major contributor to SPIONs relaxation properties. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2023; 54:102713. [PMID: 37839694 DOI: 10.1016/j.nano.2023.102713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 08/15/2023] [Accepted: 09/26/2023] [Indexed: 10/17/2023]
Abstract
Superparamagnetic iron oxide nanoparticles (SPIONs) are heavily studied as potential MRI contrast enhancing agents. Every year, novel coatings are reported which yield large increases in relaxivity compared to similar particles. However, the reason for the increased performance is not always well understood mechanistically. In this review, we attempt to relate these advances back to fundamental models of relaxivity, developed for chelated metal ions, primarily gadolinium. We focus most closely on the three-shell model which considers the relaxation of surface-bound, entrained, and bulk water molecules as three distinct contributions to total relaxation. Because SPIONs are larger, more complex, and entrain significantly more water than gadolinium-based contrast agents, we consider how to adapt the application of classical models to SPIONs in a predictive manner. By carefully considering models and previous results, a qualitative model of entrained water interactions emerges, based primarily on the contributions of core size, coating thickness, density, and hydrophilicity.
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Affiliation(s)
- Yusong Peng
- Department of Material Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, China
| | - Yunlong Li
- Department of Material Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, China
| | - Li Li
- Department of Biomedical Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, China
| | - Manman Xie
- Department of Biomedical Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, China; School of Medical Imaging, Xuzhou Medical University, Xuzhou 221006, China.
| | - Yiqing Wang
- Department of Biomedical Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, China.
| | - Christopher J Butch
- Department of Biomedical Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, China.
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2
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Yan J, Lu Z, Xu M, Liu J, Zhang Y, Yin J, Cao Y, Pei R. A tumor-targeting and ROS-responsive iron-based T 1 magnetic resonance imaging contrast agent for highly specific tumor imaging. J Mater Chem B 2023; 11:3176-3185. [PMID: 36942891 DOI: 10.1039/d3tb00217a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
T1 contrast agents (CAs) exhibit outstanding capacity in enhancing the magnetic resonance imaging (MRI) contrast between tumor tissues and normal tissues for generating bright images. However, the clinical application of representative gadolinium(III) chelate-based T1 CAs is limited due to their potential toxicity and low specificity for pathological tissues. To obtain MRI CAs with a combination of low toxicity and high tumor specificity, herein, we report a reactive oxygen species (ROS)-responsive T1 CA (GA-Fe(II)-PEG-FA), which was constructed by chelating Fe(II) with gallic acid (GA), and modified with tumor-targeted folic acid (FA). The resultant CA could accumulate in tumor tissues via the affinity between FA and their receptors on the tumor cell membrane. It realized the switch from Fe(II) to Fe(III), and further enhancing the longitudinal relaxation rate (r1) under the stimuli of ROS in the tumor microenvironment. The r1 of GA-Fe(II)-PEG-FA on a 0.5 T nuclear magnetic resonance analyzer increased to 2.20 mM-1 s-1 under ROS stimuli and was 5 times greater than the r1 (0.42 mM-1 s-1) before oxidation. The cell and in vivo experiments demonstrated that GA-Fe(II)-PEG-FA exhibited good biocompatibility and significant targeting specificity to tumor cells and tumor tissues. Furthermore, in vivo MRI studies demonstrated that the enhanced T1 contrast effect against tumors could be achieved after injecting the CA for 3 h, indicating that GA-Fe(II)-PEG-FA has the potential as an ideal tumor MRI CA to increase the contrast and improve the diagnostic precision.
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Affiliation(s)
- Jincong Yan
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China.
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Zhongzhong Lu
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China.
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
| | - Mingsheng Xu
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China.
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
| | - Jihuan Liu
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China.
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
| | - Ye Zhang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
| | - Jingbo Yin
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Yi Cao
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
| | - Renjun Pei
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China.
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
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3
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Wang SY, Xin D, Zhou ZH. Iron(II/III) sulfite and sulfates for oxygen adsorption and degradation of methyl orange. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2021.122784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Zhong C, Qiu J, Liu M, Yuan Y, Zhu H, Gao Y. Rational design and bioimaging application of cholesterol conjugated fluorescence probe for Cu2+ detection. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113267] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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5
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Qin J, Liang G, Cheng D, Liu Y, Cheng X, Yang P, Wu N, Zhao Y, Wei J. Controllable synthesis of iron-polyphenol colloidal nanoparticles with composition-dependent photothermal performance. J Colloid Interface Sci 2021; 593:172-181. [PMID: 33744528 DOI: 10.1016/j.jcis.2021.02.082] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 02/17/2021] [Accepted: 02/18/2021] [Indexed: 10/22/2022]
Abstract
Iron-polyphenol nanoparticles are usually prepared with nontoxic plant polyphenols as a main building block, which are an emerging photothermal agent for photothermal therapy. However, till now, few works have been made on the controllable synthesis of iron-polyphenol nanoparticles with tunable composition, as well as investigation of the relationship between material composition and photothermal property. In the present study, iron-polyphenol colloidal nanoparticles with tunable diameter (21-303 nm) and ion content (9.2-97.6 mg/g), as well as high colloidal stability are successfully synthesized using different polyphenols (such as tannic acid, epigallocatechin gallate, gallic acid, epicatechin and proanthocyanidin) as a ligand. In addition, photothermal performance is highly dependent on the organic ligand, iron content and particle size. Higher iron content and smaller diameter can contribute to higher photothermal performance. The iron-polyphenol nanoparticles with the optimal iron content and particle size are selected as a photothermal agent. They can effectively inhibit the tumour growth in vivo. The current work demonstrates a general synthesis strategy for iron-polyphenol colloidal nanoparticles with tailorable composition and clarifies the relationship between material composition and photothermal performance. Moreover, it is conductive to the rational design of polyphenol-based photothermal agents for theranostic applications.
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Affiliation(s)
- Jing Qin
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Guohai Liang
- College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Dong Cheng
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Yining Liu
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Xiaoran Cheng
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Pengkun Yang
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Na Wu
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Yongxi Zhao
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Jing Wei
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
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6
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Bonnet CS, Tóth É. Metal-based environment-sensitive MRI contrast agents. Curr Opin Chem Biol 2021; 61:154-169. [PMID: 33706246 DOI: 10.1016/j.cbpa.2021.01.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/07/2021] [Accepted: 01/31/2021] [Indexed: 12/30/2022]
Abstract
Interactions of paramagnetic metal complexes with their biological environment can modulate their magnetic resonance imaging (MRI) contrast-enhancing properties in different ways, and this has been widely exploited to create responsive probes that can provide biochemical information. We survey progress in two rapidly growing areas: the MRI detection of biologically important metal ions, such as calcium, zinc, and copper, and the use of transition metal complexes as smart MRI agents. In both fields, new imaging technologies, which take advantage of other nuclei (19F) and/or paramagnetic contact shift effects, emerge beyond classical, relaxation-based applications. Most importantly, in vivo imaging is gaining ground, and the promise of molecular MRI is becoming reality, at least for preclinical research.
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Affiliation(s)
- Célia S Bonnet
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Rue Charles Sadron, Orléans, 45071, France
| | - Éva Tóth
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Rue Charles Sadron, Orléans, 45071, France.
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7
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Wang R, An L, He J, Li M, Jiao J, Yang S. A class of water-soluble Fe(III) coordination complexes as T1-weighted MRI contrast agents. J Mater Chem B 2021; 9:1787-1791. [PMID: 33595044 DOI: 10.1039/d0tb02716b] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Iron-based coordination complexes are showing increasing potential to be alternatives for T1-weighted magnetic resonance imaging (MRI) and contribute to the safety of gadolinium-based compounds. In this work, three water-soluble iron-based complexes constructed using catechol ligands exhibiting T1-weighted MRI contrast behavior are described. The longitudinal relaxivity (r1) increase from 0.88 to 1.43 mM-1 s-1 mainly depends on the sizes and the number of water molecules in the second and outer spheres around the discrete complexes.
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Affiliation(s)
- Run Wang
- Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, Shanghai Normal University, Shanghai 200234, China.
| | - Lu An
- Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, Shanghai Normal University, Shanghai 200234, China.
| | - Jing He
- Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, Shanghai Normal University, Shanghai 200234, China.
| | - Mengmeng Li
- Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, Shanghai Normal University, Shanghai 200234, China.
| | - Jingjing Jiao
- Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, Shanghai Normal University, Shanghai 200234, China.
| | - Shiping Yang
- Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, Shanghai Normal University, Shanghai 200234, China. and The Key Laboratory of Resource Chemistry of the Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai 200234, P. R. China
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8
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Liang G, Han J, Xing D. Precise Tumor Photothermal Therapy Guided and Monitored by Magnetic Resonance/Photoacoustic Imaging using A Safe and pH-Responsive Fe(III) Complex. Adv Healthc Mater 2021; 10:e2001300. [PMID: 33314796 DOI: 10.1002/adhm.202001300] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 10/05/2020] [Indexed: 12/15/2022]
Abstract
Photothermal agents with strong near infrared (NIR) optical absorbance and excellent biocompatibility and traceability are highly desired for precise photothermal therapy. This study reports the development of a dual-functional Fe3+ complex (Fe-ZDS) for imaging-guided, precise photothermal therapy of tumors. The complex has stable structure and obvious zwitterionic features, resulting in excellent biocompatibility and efficient renal clearance. The iron-dopa core structure renders the complex capable of generating magnetic resonance imaging (MRI) contrast, while synergistically exhibiting optical absorption in the red and NIR regions. Interestingly, the optical absorption of the complex is pH-sensitive, with significantly higher absorption intensity in a weakly acidic environment than in a neutral environment. Thus the complex can respond to acidic tumor stimuli and confine the energy of the laser to the tumor tissue. The MRI contrast and photoacoustic signal of the complex is taken advantage of to monitor the probe injection process and optimize the injection position and dosage for maximally covering the tumor tissue and assessing the activation of the complex in tumor tissues. The evolution of temperature inside the tissue during the laser irradiation is also monitored. Using Fe-ZDS as the theranostic probe, satisfactory treatment outcomes are achieved for photothermal therapy of tumors.
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Affiliation(s)
- Guohai Liang
- MOE Key Laboratory of Laser Life Science Institute of Laser Life Science South China Normal University Guangzhou 510631 China
- College of Biophotonics South China Normal University Guangzhou 510631 China
| | - Jiamei Han
- MOE Key Laboratory of Laser Life Science Institute of Laser Life Science South China Normal University Guangzhou 510631 China
- College of Biophotonics South China Normal University Guangzhou 510631 China
| | - Da Xing
- MOE Key Laboratory of Laser Life Science Institute of Laser Life Science South China Normal University Guangzhou 510631 China
- College of Biophotonics South China Normal University Guangzhou 510631 China
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9
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Wyskocka-Gajda M, Przypis Ł, Olesiejuk M, Krawczyk T, Kuźnik A, Nawara K, Minoshima M, Sugihara F, Kikuchi K, Kuźnik N. A step towards gadolinium-free bioresponsive MRI contrast agent. Eur J Med Chem 2020; 211:113086. [PMID: 33348236 DOI: 10.1016/j.ejmech.2020.113086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 12/01/2020] [Accepted: 12/02/2020] [Indexed: 02/05/2023]
Abstract
The last 30 years of gadolinium-based "static" MRI contrast agents motivated to investigate bioresponsive agents with endogenous paramagnets. Iron(III) chelated by N,O-aminophenol skeleton of high versatility, and tuning potential was studied. The two-step convenient route of the ligand is characterized by high selectivity and allows for building a tunable chelate system. Functionalization with galactose endows a bioresponsive character sensitive to the enzyme activity. Direct relaxometric measurements of the resulting complexes revealed extremely high relaxivity of 5.62 mmol/dm3·s-1 comparable to classic gadolinium complexes. Enzymatic hydrolysis leads to relaxivity change by over 80%. Phantom MRI studies prove the bioresponsive character by contras percentage change within the range 40-275%. Cytotoxicity studies showed 70-90% viability of HeLa cells of the iron complexes. Proposed iron-based chelates with galactosidase-sensitive fragment express unequivocal relaxivity and MRI contras change and good biocompatibility. Therefore, these complexes are a promising step towards modern, bioresponsive MRI contrast agents with a "human-friendly" metal.
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Affiliation(s)
- Marzena Wyskocka-Gajda
- Silesian University of Technology, Faculty of Chemistry, M. Strzody 9, 44-100, Gliwice, Poland
| | - Łukasz Przypis
- Silesian University of Technology, Faculty of Chemistry, M. Strzody 9, 44-100, Gliwice, Poland
| | - Monika Olesiejuk
- Silesian University of Technology, Faculty of Chemistry, M. Strzody 9, 44-100, Gliwice, Poland
| | - Tomasz Krawczyk
- Silesian University of Technology, Faculty of Chemistry, M. Strzody 9, 44-100, Gliwice, Poland
| | - Anna Kuźnik
- Silesian University of Technology, Faculty of Chemistry, M. Strzody 9, 44-100, Gliwice, Poland
| | - Krzysztof Nawara
- Faculty of Mathematics and Science, Cardinal Stefan Wyszyński University, Dewajtis 5, 01-815, Warsaw, Poland
| | - Masafumi Minoshima
- Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka, 565-0871, Japan
| | - Fuminori Sugihara
- Immunology Frontier Research Center, Osaka University, Yamadaoka 3-1, Suita, Osaka, 565-0871, Japan
| | - Kazuya Kikuchi
- Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka, 565-0871, Japan
| | - Nikodem Kuźnik
- Silesian University of Technology, Faculty of Chemistry, M. Strzody 9, 44-100, Gliwice, Poland.
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10
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Fu Y, Jang MS, Wang N, Li Y, Wu TP, Lee JH, Lee DS, Yang HY. Dual activatable self-assembled nanotheranostics for bioimaging and photodynamic therapy. J Control Release 2020; 327:129-139. [PMID: 32771476 DOI: 10.1016/j.jconrel.2020.07.045] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 07/27/2020] [Accepted: 07/29/2020] [Indexed: 01/03/2023]
Abstract
Multifunctional nanosystems that can transport therapeutic and diagnostic agents into tumor sites and activate their respective functions via tumor-microenvironment recognition are highly desirable for clinical applications. We fabricated pH and redox dual-activatable self-assembled nanotheranostics (named as DA-SNs) via coordination-driven self-assembly of chlorin e6 (Ce6) disulfide-linked pH sensitive polymer ligand, poly (isobutylene-alt-maleic anhydride-graft-methoxy-poly (ethyleneglycol)-graft-imidazole-graft-Cystamine-Ce6) [PIMA-mPEG-API-SS-Ce6], and gadolinium ions (Gd3+). DA-SNs exhibited uniform particle size of ~48 nm, excellent stability, and inherent biosafety. Negatively charged DA-SNs could prolong blood circulation time (t1/2 = 2.91 h) and improve tumor accumulation. Moreover, DA-SNs could undergo surface charge switch from negative charge to positive one in a slightly acidic tumor extracellular environment (pH 6.8), thus enhancing cellular uptake. After entering tumor cells, fluorescence, photodynamic therapeutic activity, and T1MR contrast from DA-SNs could be activated within this intracellular environment with lowered pH and high level of GSH. Importantly, human tumors implanted in mice could be successfully visualized via distinct pH and redox dual-sensitive T1MR contrast and fluorescence imaging, indicating that DA-SNs could serve as a dual-modal MR/fluorescence imaging probe for tumor-targeting diagnosis. In addition, DA-SNs exhibited superior photodynamic therapeutic efficiency with negligible side effects. Therefore, this DA-SN shows great promise for synergistic photodynamic therapy and diagnostic imaging.
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Affiliation(s)
- Yan Fu
- College of Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, PR China
| | - Moon-Sun Jang
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine and Center for Molecular and Cellular Imaging, Samsung Biomedical Research Institute, Seoul 06351, Republic of Korea
| | - Nannan Wang
- College of Biology and Food Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, PR China
| | - Yi Li
- College of Material and Textile Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, PR China
| | - Te Peng Wu
- Theranostic Macromolecules Research Center and School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Jung Hee Lee
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine and Center for Molecular and Cellular Imaging, Samsung Biomedical Research Institute, Seoul 06351, Republic of Korea.
| | - Doo Sung Lee
- Theranostic Macromolecules Research Center and School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 16419, Republic of Korea.
| | - Hong Yu Yang
- College of Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, PR China.
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11
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Furuya S, Kanemoto K, Fukuzawa SI. Copper-Catalyzed Asymmetric 1,3-Dipolar Cycloaddition of Imino Esters to Unsaturated Sultones. J Org Chem 2020; 85:8142-8148. [DOI: 10.1021/acs.joc.0c01023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Shohei Furuya
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Kazuya Kanemoto
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Shin-ichi Fukuzawa
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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12
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Qin J, Liang G, Feng Y, Feng B, Wang G, Wu N, Zhao Y, Wei J. Synthesis of gadolinium/iron-bimetal-phenolic coordination polymer nanoparticles for theranostic applications. NANOSCALE 2020; 12:6096-6103. [PMID: 32129393 DOI: 10.1039/c9nr10020b] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Integration of diagnostic and therapeutic components into a single coordination polymer nanoparticle is desirable for theranostic applications, but still challenging. Herein, we report the synthesis of bimetal-phenolic coordination polymer nanoparticles using gadolinium nitrate and ferrous sulphate as a metal source, and plant polyphenols (i.e., tannic acid) as an organic ligand via a metal-catechol coordination assembly process. Such coordination polymers show a tunable molar ratio of Gd/Fe and high dispersibility and stability in aqueous solution. The coordination polymers reveal composition-dependent performance for longitudinal relaxivity and photothermal conversion. The longitudinal relaxivity is positively related to the molar ratio of Gd/Fe, while the photothermal performance is negatively related to the molar ratio of Gd/Fe in the coordination polymers. The coordination polymers with an optimized molar ratio of Gd/Fe exhibit an ultra-small hydrodynamic diameter (∼23 nm), a high r1 value (9.3 mM-1 s-1) with low r2/r1 (1.26) and high photothermal conversion efficiency (η = 37%). They can be used as a contrast agent for T1-weighted magnetic resonance imaging of EMT-6 tumor bearing mice, which can effectively enhance the signals of tumors. They can also effectively suppress tumor growth via photothermal therapy. This work brings new insights for the synthesis of multifunctional coordination polymer nanoparticles and extending their potential applications in theranostics.
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Affiliation(s)
- Jing Qin
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China.
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13
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Xiong Z, Shen M, Shi X. Zwitterionic Modification of Nanomaterials for Improved Diagnosis of Cancer Cells. Bioconjug Chem 2019; 30:2519-2527. [DOI: 10.1021/acs.bioconjchem.9b00543] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Zhijuan Xiong
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People’s Republic of China
| | - Mingwu Shen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People’s Republic of China
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People’s Republic of China
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