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Zhang J, Su X, Weng L, Tang K, Miao Y, Teng Z, Wang L. Gadolinium-hybridized mesoporous organosilica nanoparticles with high magnetic resonance imaging performance for targeted drug delivery. J Colloid Interface Sci 2023; 633:102-112. [PMID: 36436344 DOI: 10.1016/j.jcis.2022.11.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/14/2022] [Accepted: 11/17/2022] [Indexed: 11/23/2022]
Abstract
Magnetic resonance (MR) imaging techniques, which can provide images with excellent anatomical detail, are widely used in clinical diagnosis. However, the current clinical small molecule gadolinium (Gd) contrast agents have the defects of relatively low sensitivity and poor tumor-target specificity, preventing their adoption in biology and medicine. Herein, a facile synthetic strategy to fabricate gadolinium-hybridized mesoporous organosilica nanoparticles (MOSG) through a nanoprecipitation reaction, with the surface of nanoparticles grafted with the fluorescent dye isothiocyanate (FITC) and arginine-glycine-aspartic acid (RGD) for delivery of the antitumour drug doxorubicin hydrochloride (DOX), resulting in a high-performance nanotheranostic (RGD-MOSG-FITC/DOX) for targeted magnetic resonance imaging and chemotherapy of tumors. The prepared MOSG had a particle size of 60-80 nm and gadolinium elements were distributed in clusters that exhibited boosted longitudinal relaxivity. Routine blood tests and histopathology indicated good biocompatibility of MOSG. Furthermore, after being decorated with Arg-Gly-Asp peptide (RGD), RGD-MOSG-FITC demonstrated more preferable cellular uptake by HeLa cells (high expression of αⅤβ3) than MOSG without RGD grafting. Additionally, the tumor growth inhibition effect of RGD-MOSG-FITC/DOX was substantially more effective than that of the other groups. Therefore, this new delivery platform has good application potential in the field of tumor diagnosis and treatment.
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Affiliation(s)
- Junjie Zhang
- Department of Chemistry, Bengbu Medical College, Bengbu 233030, PR China
| | - Xiaodan Su
- Key Laboratory for Organic Electronics and Information Displays, Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing University of Posts and Telecommunications (NJUPT), Nanjing 210023, PR China
| | - Lixing Weng
- Key Laboratory for Organic Electronics and Information Displays, Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing University of Posts and Telecommunications (NJUPT), Nanjing 210023, PR China
| | - Kaiyuan Tang
- Department of Chemistry, Bengbu Medical College, Bengbu 233030, PR China
| | - Yuchen Miao
- Department of Chemistry, Bengbu Medical College, Bengbu 233030, PR China
| | - Zhaogang Teng
- Key Laboratory for Organic Electronics and Information Displays, Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing University of Posts and Telecommunications (NJUPT), Nanjing 210023, PR China.
| | - Lianhui Wang
- Key Laboratory for Organic Electronics and Information Displays, Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing University of Posts and Telecommunications (NJUPT), Nanjing 210023, PR China.
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Wang C, Wang Y, Xiao W, Chen X, Li R, Shen Z, Lu F. Carboxylated superparamagnetic Fe 3O 4 nanoparticles modified with 3-amino propanol and their application in magnetic resonance tumor imaging. BMC Cancer 2023; 23:54. [PMID: 36647053 PMCID: PMC9841710 DOI: 10.1186/s12885-023-10514-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 01/04/2023] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Ultrasmall superparamagnetic iron oxide (USPIO) nanoparticles are of potential magnetic resonance imaging (MRI) contrast agents for tumor diagnosis. However, ultrasmall particle size or negative surface charge lead to relative short half-life which limit the utilization of USPIO for in vivo MRI contrast agents. METHODS Superparamagnetic Fe3O4 nanoparticles coated with polyacrylic acid (PAA)were synthetized, and modified by 3-amino propanol and 3-diethyl amino propyl amine. The characteristics of superparamagnetic Fe3O4 nanoparticles were investigated through transmission electron microscopy, X-ray diffraction analysis, Zata potential analysis, thermogravimetric analysis, and relaxation properties analysis. Magnetic resonance imaging animal experiment was performed. RESULTS The synthetized nanoparticles were irregular spherical, with small particle size, few agglomeration, and good dispersion in water. After modification, the potential fluctuation of nanoparticles was small, and the isoelectric point of nanoparticles changed to high pH. After 3-amino propanol modification, the weight loss of the curve from 820 to 940 °C was attributed to the decomposition of 3-amino propanol molecules on the surface. The T1 relaxation rate of nanoparticles changed little before and after modification, which proved that the modification didn't change the relaxation time. Brighter vascular images were observed after 3-amino propanol modification through measurement of magnetic resonance tumor imaging. CONCLUSION These data indicated the Fe3O4 nanoparticles modified by 3-amino propanol should be a better contrast agent in the field of magnetic resonance tumor imaging.
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Affiliation(s)
- Changyuan Wang
- grid.411176.40000 0004 1758 0478Department of Pediatric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, 350001 Fuzhou, Fujian China
| | - Yang Wang
- grid.411176.40000 0004 1758 0478Department of Pediatric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, 350001 Fuzhou, Fujian China
| | - Wangchuan Xiao
- grid.411176.40000 0004 1758 0478Department of Pediatric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, 350001 Fuzhou, Fujian China ,grid.440620.40000 0004 1799 2210School of resources and chemical engineering, Sanming University, No. 25, Jindong Road, 365004 Sanming, Fujian China
| | - Xiaohua Chen
- grid.411176.40000 0004 1758 0478Department of Pediatric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, 350001 Fuzhou, Fujian China
| | - Renfu Li
- grid.411176.40000 0004 1758 0478Department of Pediatric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, 350001 Fuzhou, Fujian China
| | - Zhiyong Shen
- grid.411176.40000 0004 1758 0478Department of Pediatric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, 350001 Fuzhou, Fujian China
| | - Fengchun Lu
- grid.411176.40000 0004 1758 0478Department of Pancreatic Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, 350001 Fuzhou, Fujian China
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Chen C, Huang C, Liu J, Tao J, Chen Y, Deng K, Xu Y, Lin B, Zhao P. Hofmeister Effect-Based T1-T2 Dual-Mode MRI and Enhanced Synergistic Therapy of Tumor. ACS APPLIED MATERIALS & INTERFACES 2022; 14:49568-49581. [PMID: 36317744 DOI: 10.1021/acsami.2c15295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The imaging resolution of magnetic resonance imaging (MRI) is influenced by many factors. The development of more effective MRI contrast agents (CAs) is significant for early tumor detection and radical treatment, albeit challenging. In this work, the Hofmeister effect of Fe2O3 nanoparticles within the tumor microenvironment was confirmed for the first time. Based on this discovery, we designed a nanocomposite (FePN) by loading Fe2O3 nanoparticles on black phosphorus nanosheets. After reacting with glutathione, the FePN will undergo two stages in the tumor microenvironment, resulting in the robust enhancement of r1 and r2 based on the Hofmeister effect in the commonly used magnetic field (3.0 T). The glutathione-activated MRI signal of FePN was higher than most of the activatable MRI CAs, enabling a more robust visualization of tumors. Furthermore, benefiting from the long circulation time of FePN in the blood and retention time in tumors, the synergistic therapy of FePN exhibited an outstanding inhibition toward tumors. The FePN with good biosafety and biocompatibility will not only pave a new way for designing a common magnetic field-tailored T1-T2 dual-mode MRI CA but also offer a novel pattern for the accurate clinical diagnosis and therapy of tumors.
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Affiliation(s)
- Chuyao Chen
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China
| | - Cong Huang
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China
- Department of Ultrasound, The First Affiliated Hospital of Shantou University Medical College, 515041 Shantou, China
| | - Jiamin Liu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation and School of Pharmaceutical Sciences, Southern Medical University, 510515 Guangzhou, China
| | - Jia Tao
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640 Guangzhou, China
| | - Yuying Chen
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640 Guangzhou, China
| | - Kan Deng
- Philips Healthcare, 510000 Guangzhou, China
| | - Yikai Xu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China
| | - Bingquan Lin
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China
| | - Peng Zhao
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation and School of Pharmaceutical Sciences, Southern Medical University, 510515 Guangzhou, China
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Thi Thuy Khue N, Thanh Tam LT, Thanh Dung N, The Tam L, Xuan Chung N, Thi Ngoc Linh N, Dinh Vinh N, Minh Quy B, Trong Lu L. Water‐dispersible Gadolinium Oxide Nanoplates as an Effective Positive Magnetic Resonance Imaging Contrast Agent. ChemistrySelect 2022. [DOI: 10.1002/slct.202202062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Nguyen Thi Thuy Khue
- Graduate University of Science and Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Hanoi Vietnam
- Haiphong University of Medicine and Pharmacy 72A Nguyen Binh Khiem, Ngo Quyen Hai Phong Vietnam
| | - Le Thi Thanh Tam
- Institute for Tropical Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Hanoi Vietnam
| | - Ngo Thanh Dung
- Institute for Tropical Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Hanoi Vietnam
| | - Le The Tam
- Vinh University 182 Le Duan Vinh City Vietnam
| | - Nguyen Xuan Chung
- Department of Physics Hanoi University of Mining and Geology 18 Pho Vien, Bac Tu Liem Hanoi Vietnam
| | - Nguyen Thi Ngoc Linh
- Thai Nguyen University of Sciences Tan Thinh Ward, Thai Nguyen City 25000 Thai Nguyen Vietnam
| | - Nguyen Dinh Vinh
- Thai Nguyen University of Sciences Tan Thinh Ward, Thai Nguyen City 25000 Thai Nguyen Vietnam
| | - Bui Minh Quy
- Thai Nguyen University of Sciences Tan Thinh Ward, Thai Nguyen City 25000 Thai Nguyen Vietnam
| | - Le Trong Lu
- Graduate University of Science and Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Hanoi Vietnam
- Institute for Tropical Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Hanoi Vietnam
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Ouyang J, Rao S, Liu R, Wang L, Chen W, Tao W, Kong N. 2D materials-based nanomedicine: From discovery to applications. Adv Drug Deliv Rev 2022; 185:114268. [PMID: 35398466 DOI: 10.1016/j.addr.2022.114268] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 03/11/2022] [Accepted: 04/02/2022] [Indexed: 01/14/2023]
Abstract
Due to their unique physicochemical characteristics, 2D materials have attracted more and more attention in the biomedicine field. Currently, 2D materials-based nanomedicines have been extensively applied in various diseases including cancer, bacterial infection, tissue engineering, biological protection, neurodegenerative diseases, and cardiovascular disease. Depending on their various characteristics, these 2D nanomedicines exert their therapeutic effect in different ways, showing great clinical application prospects. Herein, we focus on the various biomedical applications of 2D materials-based nanomedicine. The structures and characteristics of several typical 2D nanomaterials with different configurations and their corresponding biomedical applications are first introduced. Then, the potential of 2D nanomedicines on therapeutic and imaging and their biological functionalization are discussed. Furthermore, the therapeutic potentials of 2D nanomedicines in various diseases are also comprehensively summarized. At last, the challenges and perspectives for the advancement of 2D nanomedicines in clinical transformation are outlooks.
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Affiliation(s)
- Jiang Ouyang
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Siyuan Rao
- Guangzhou University of Chinese Medicine, Guangzhou, China & Orthopedics Department, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, Guangdong 510006, China
| | - Runcong Liu
- Zhuhai Hospital Affiliated, Jinan University, Zhuhai, Guangdong 519000, China
| | - Liqiang Wang
- School of Material Science and Engineering, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Wei Chen
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Wei Tao
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
| | - Na Kong
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, Zhejiang 311121, China; Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
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Shi XY, Shen TX, Zhang AL, Tan LT, Shen WC, Zhong HJ, Zhang SL, Gu YL, Shen L. Rational Design of a Gd(III)–Cu(II) Nanobooster for Chemodynamic Therapy Against Cancer Cells. Front Chem 2022; 10:856495. [PMID: 35464207 PMCID: PMC9021535 DOI: 10.3389/fchem.2022.856495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 02/28/2022] [Indexed: 11/13/2022] Open
Abstract
Copper (II) containing coordination complexes have attracted much attention for chemodynamic therapy (CDT) against cancer cells. In this study, the bimetallic nanobooster [Gd2Cu(L)2(H2O)10]·6H2O was prepared by a solvothermal method based on tetrazole carboxylic acid ligand H4L [H4L = 3,3-di (1H-tetrazol-5-yl) pentanedioic acid]. It showed considerable cytotoxicity toward three kinds of human cancer cells (HeLa, HepG2, and HT29). The MTT assay showed that the IC50 (half-maximal inhibitory concentration) of the complex NPs on HeLa cells (4.9 μg/ml) is superior to that of HepG2 (11.1 μg/ml) and HT29 (5.5 μg/ml). This result showed that [Gd2Cu(L)2(H2O)10]·6H2O NPs can inhibit cell proliferation in vitro and may be potential candidates for chemodynamic therapy. In addition, the cytotoxicity was also confirmed by the trypan blue staining experiment. The results promise the great potential of Gd(III)–Cu(II) for CDT against cancer cells.
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Affiliation(s)
- Xin-Ya Shi
- Department of Oncology, Changshu No.2 People’s Hospital, Changshu, China
| | - Ting-Xiao Shen
- Jiangsu Laboratory of Advanced Functional Materials, College of Material Engineering, Changshu Institute of Technology, Changshu, China
| | - Ao-Lin Zhang
- Jiangsu Laboratory of Advanced Functional Materials, College of Material Engineering, Changshu Institute of Technology, Changshu, China
| | - Li-Tao Tan
- Jiangsu Laboratory of Advanced Functional Materials, College of Material Engineering, Changshu Institute of Technology, Changshu, China
| | - Wen-Chang Shen
- Jiangsu Laboratory of Advanced Functional Materials, College of Material Engineering, Changshu Institute of Technology, Changshu, China
| | - Hai-Jiang Zhong
- Jiangsu Laboratory of Advanced Functional Materials, College of Material Engineering, Changshu Institute of Technology, Changshu, China
| | - Shun-Lin Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, China
- *Correspondence: Shun-Lin Zhang, ; Yu-Lan Gu, ; Lei Shen,
| | - Yu-Lan Gu
- Department of Oncology, Changshu No.2 People’s Hospital, Changshu, China
- *Correspondence: Shun-Lin Zhang, ; Yu-Lan Gu, ; Lei Shen,
| | - Lei Shen
- Jiangsu Laboratory of Advanced Functional Materials, College of Material Engineering, Changshu Institute of Technology, Changshu, China
- *Correspondence: Shun-Lin Zhang, ; Yu-Lan Gu, ; Lei Shen,
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Liu K, Cai Z, Chi X, Kang B, Fu S, Luo X, Lin ZW, Ai H, Gao J, Lin H. Photoinduced Superhydrophilicity of Gd-Doped TiO 2 Ellipsoidal Nanoparticles Boosts T1 Contrast Enhancement for Magnetic Resonance Imaging. NANO LETTERS 2022; 22:3219-3227. [PMID: 35380442 DOI: 10.1021/acs.nanolett.1c04676] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The unsatisfactory performance of current gadolinium chelate based T1 contrast agents (CAs) for magnetic resonance imaging (MRI) stimulates the search for better alternatives. Herein, we report a new strategy to substantially improve the capacity of nanoparticle-based T1 CAs by exploiting the photoinduced superhydrophilic assistance (PISA) effect. As a proof of concept, we synthesized citrate-coated Gd-doped TiO2 ellipsoidal nanoparticles (GdTi-SC NPs), whose r1 increases significantly upon UV irradiation. The reduced water contact angle and the increased number of surface hydroxyl groups substantiate the existence of the PISA effect, which considerably promotes the efficiency of paramagnetic relaxation enhancement (PRE) and thus the imaging performance of GdTi-SC NPs. In vivo MRI of SD rats with GdTi-SC NPs further demonstrates that GdTi-SC NPs could serve as a high-performance CA for sensitive imaging of blood vessels and accurate diagnosis of vascular lesions, indicating the success of our strategy.
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Affiliation(s)
- Kun Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Fujian Provincial Key Laboratory of Chemical Biology, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhongyuan Cai
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Xiaoqin Chi
- Fujian Provincial Key Laboratory of Chronic Liver Disease and Hepatocellular Carcinoma, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen 361004, China
| | - Bilun Kang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Fujian Provincial Key Laboratory of Chemical Biology, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Shengxiang Fu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Xiangjie Luo
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Fujian Provincial Key Laboratory of Chemical Biology, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhi-Wei Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Fujian Provincial Key Laboratory of Chemical Biology, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Hua Ai
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China.,Department of Radiology, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Jinhao Gao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Fujian Provincial Key Laboratory of Chemical Biology, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Hongyu Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Fujian Provincial Key Laboratory of Chemical Biology, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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Liu Y, Dai Y, Li H, Duosiken D, Tang N, Sun K, Tao K. Revisiting the factors influencing the magnetic resonance contrast of Gd 2O 3 nanoparticles. NANOSCALE ADVANCES 2021; 4:95-101. [PMID: 36132966 PMCID: PMC9418219 DOI: 10.1039/d1na00612f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 10/22/2021] [Indexed: 06/16/2023]
Abstract
Gadolinium oxide nanoparticles (GONs) have the potential to be one of the best candidates for the contrast agents of magnetic resonance imaging. Even though the influence of parameters on the relaxation has been substantially demonstrated, the variation of the r 1 of GONs with a similar structure and surface chemistry implied our limited understanding. We herein synthesized GONs with adjustable size, shape, and crystallinity, modified them with a series of molecules with different acidities, and recorded their r 1 values and imaging contrast. Our results showed that the isoelectric point could be regarded as an indicator of the relaxation covering the influence of both surface modification and size, which highlighted the impact of protons dissociated from the contrast agents. We further showed that the nanoparticles with lower crystallinity possess higher relaxivity, and this phenomenon manifested significantly under a low field. Our work clarified that the longitudinal relaxivity of Gd2O3 nanoparticles is sensitively dependent on the numbers of H+ generated from the surface and in the environment, which may shed light on developing high-performance nanoparticulate T 1 contrast agents.
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Affiliation(s)
- Yanyue Liu
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Yingfan Dai
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Haifeng Li
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Dida Duosiken
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Na Tang
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Kang Sun
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Ke Tao
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University Shanghai 200240 P. R. China
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Stueber DD, Villanova J, Aponte I, Xiao Z, Colvin VL. Magnetic Nanoparticles in Biology and Medicine: Past, Present, and Future Trends. Pharmaceutics 2021; 13:943. [PMID: 34202604 PMCID: PMC8309177 DOI: 10.3390/pharmaceutics13070943] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/27/2021] [Accepted: 06/16/2021] [Indexed: 12/23/2022] Open
Abstract
The use of magnetism in medicine has changed dramatically since its first application by the ancient Greeks in 624 BC. Now, by leveraging magnetic nanoparticles, investigators have developed a range of modern applications that use external magnetic fields to manipulate biological systems. Drug delivery systems that incorporate these particles can target therapeutics to specific tissues without the need for biological or chemical cues. Once precisely located within an organism, magnetic nanoparticles can be heated by oscillating magnetic fields, which results in localized inductive heating that can be used for thermal ablation or more subtle cellular manipulation. Biological imaging can also be improved using magnetic nanoparticles as contrast agents; several types of iron oxide nanoparticles are US Food and Drug Administration (FDA)-approved for use in magnetic resonance imaging (MRI) as contrast agents that can improve image resolution and information content. New imaging modalities, such as magnetic particle imaging (MPI), directly detect magnetic nanoparticles within organisms, allowing for background-free imaging of magnetic particle transport and collection. "Lab-on-a-chip" technology benefits from the increased control that magnetic nanoparticles provide over separation, leading to improved cellular separation. Magnetic separation is also becoming important in next-generation immunoassays, in which particles are used to both increase sensitivity and enable multiple analyte detection. More recently, the ability to manipulate material motion with external fields has been applied in magnetically actuated soft robotics that are designed for biomedical interventions. In this review article, the origins of these various areas are introduced, followed by a discussion of current clinical applications, as well as emerging trends in the study and application of these materials.
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Affiliation(s)
- Deanna D. Stueber
- Center for Biomedical Engineering, School of Engineering, Brown University, 171 Meeting Street, Providence, RI 02912, USA; (D.D.S.); (J.V.); (I.A.)
| | - Jake Villanova
- Center for Biomedical Engineering, School of Engineering, Brown University, 171 Meeting Street, Providence, RI 02912, USA; (D.D.S.); (J.V.); (I.A.)
- Department of Chemistry, Brown University, 324 Brook Street, Providence, RI 02912, USA;
| | - Itzel Aponte
- Center for Biomedical Engineering, School of Engineering, Brown University, 171 Meeting Street, Providence, RI 02912, USA; (D.D.S.); (J.V.); (I.A.)
| | - Zhen Xiao
- Department of Chemistry, Brown University, 324 Brook Street, Providence, RI 02912, USA;
| | - Vicki L. Colvin
- Center for Biomedical Engineering, School of Engineering, Brown University, 171 Meeting Street, Providence, RI 02912, USA; (D.D.S.); (J.V.); (I.A.)
- Department of Chemistry, Brown University, 324 Brook Street, Providence, RI 02912, USA;
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