51
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Zheng XY, Pellico J, Khrapitchev AA, Sibson NR, Davis JJ. Dy-DOTA integrated mesoporous silica nanoparticles as promising ultrahigh field magnetic resonance imaging contrast agents. NANOSCALE 2018; 10:21041-21045. [PMID: 30427363 DOI: 10.1039/c8nr07198e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Integrating Dy-DOTA motifs into mesoporous silica nanoparticle scaffolds generates remarkable ultrahigh field T2 relaxivities for a well-defined and tailorable contrast agent, attributed to enhanced Curie outer-sphere contributions as supported by simulation.
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Affiliation(s)
- Xiao-Yu Zheng
- Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QZ, UK.
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52
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He M, Su Y, Zhang R, Liu Y, Zhang S, Jiang Z. In-situ construction of antifouling separation layer via a reaction enhanced surface segregation method. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2018.06.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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53
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Liang G, Han J, Hao Q. Gram-Scale Preparation of Iron Oxide Nanoparticles with Renal Clearance Properties for Enhanced T1-Weighted Magnetic Resonance Imaging. ACS APPLIED BIO MATERIALS 2018; 1:1389-1397. [DOI: 10.1021/acsabm.8b00346] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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
| | - Qiubo Hao
- 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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54
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Kuang Y, Cao Y, Liu M, Zu G, Zhang Y, Zhang Y, Pei R. Geometrical Confinement of Gadolinium Oxide Nanoparticles in Poly(ethylene glycol)/Arginylglycylaspartic Acid-Modified Mesoporous Carbon Nanospheres as an Enhanced T 1 Magnetic Resonance Imaging Contrast Agent. ACS APPLIED MATERIALS & INTERFACES 2018; 10:26099-26107. [PMID: 30016059 DOI: 10.1021/acsami.8b09709] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
A new strategy for designing contrast agents (CAs) based on geometrical confinement will become a competent way to improve the relaxivity of CAs. Herein, a magnetic resonance imaging (MRI) nanoconstruct is fabricated through loading Gd2O3 nanoparticles into mesoporous carbon nanospheres, followed by conjugation of poly(ethylene glycol) (PEG) and the c(RGDyK) peptide (Gd2O3@OMCN-PEG-RGD), which could prolong the blood circulation half-life as well as improve the tumor-targeting ability. As a result, the Gd2O3@OMCN-PEG-RGD exhibits an outstandingly high relaxivity ( r1 = 68.02 mM-1 s-1), which is ∼5.3 times higher than that of Gd2O3 nanoparticles ( r1 = 12.74 mM-1 s-1). Afterward, both the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide test and H&E staining show that the Gd2O3@OMCN-PEG-RGD has wonderful biocompatibility in vitro and in vivo. Moreover, the in vivo MR images indicate that the Gd2O3@OMCN-PEG-RGD could accumulate in the tumor region more rapidly than Gd2O3@OMCN-PEG. This study presents a facile method to fabricate an MRI CA with excellent T1 contrast ability based on geometrical confinement and excellent biocompatibility, which could act as an optimal contender for sensitive in vivo tumor imaging with outstanding targeting ability.
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Affiliation(s)
- Ye Kuang
- CAS Key Laboratory of Nano-Bio Interface , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Yi Cao
- CAS Key Laboratory of Nano-Bio Interface , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Min Liu
- CAS Key Laboratory of Nano-Bio Interface , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Guangyue Zu
- CAS Key Laboratory of Nano-Bio Interface , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Yajie Zhang
- CAS Key Laboratory of Nano-Bio Interface , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Ye Zhang
- CAS Key Laboratory of Nano-Bio Interface , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Renjun Pei
- CAS Key Laboratory of Nano-Bio Interface , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
- School of Nano Technology and Nano Bionics , University of Science and Technology of China , Hefei 230026 , China
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55
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Park JC, Lee GT, Kim HK, Sung B, Lee Y, Kim M, Chang Y, Seo JH. Surface Design of Eu-Doped Iron Oxide Nanoparticles for Tuning the Magnetic Relaxivity. ACS APPLIED MATERIALS & INTERFACES 2018; 10:25080-25089. [PMID: 29989402 DOI: 10.1021/acsami.8b06569] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Relaxivity tuning of nanomaterials with the intrinsic T1- T2 dual-contrast ability has great potential for MRI applications. Until now, the relaxivity tuning of T1 and T2 dual-modal MRI nanoprobes has been accomplished through the dopant, size, and morphology of the nanoprobes, leaving room for bioapplications. However, a surface engineering method for the relaxivity tuning was seldom reported. Here, we report the novel relaxivity tuning method based on the surface engineering of dual-mode T1- T2 MRI nanoprobes (DMNPs), along with protein interaction monitoring with the DMNPs as a potential biosensor application. Core nanoparticles (NPs) of europium-doped iron oxide (EuIO) are prepared by a thermal decomposition method. As surface materials, citrate (Cit), alendronate (Ale), and poly(maleic anhydride- alt-1-octadecene)/poly(ethylene glycol) (PP) are employed for the relaxivity tuning of the NPs based on surface engineering, resulting in EuIO-Cit, EuIO-Ale, and EuIO-PP, respectively. The key achievement of the current study is that the surface materials of the DMNP have significant impacts on the r1 and r2 relaxivities. The correlation between the hydrophobicity of the surface material and longitudinal relaxivity ( r1) of EuIO NPs presents an exponential decay feature. The r1 relaxivity of EuIO-Cit is 13.2-fold higher than that of EuIO-PP. EuIO can act as T1- T2 dual-modal (EuIO-Cit) or T2-dominated MRI contrast agents (EuIO-PP) depending on the surface engineering. The feasibility of using the resulting nanosystem as a sensor for environmental changes, such as albumin interaction, was also explored. The albumin interaction on the DMNP shows both T1 and T2 relaxation time changes as mutually confirmative information. The relaxivity tuning approach based on the surface engineering may provide an insightful strategy for bioapplications of DMNPs and give a fresh impetus for the development of novel stimuli-responsive MRI nanoplatforms with T1 and T2 dual-modality for various biomedical applications.
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Affiliation(s)
- Jeong Chan Park
- Department of Chemical Engineering , Pohang University of Science and Technology , 77 Cheongam-Ro , Nam-Gu, Pohang , Gyeongbuk 37673 , Korea
| | - Gyeong Tae Lee
- School of Chemical Engineering , Yeungnam University , 280 Daehakro , Gyeongsan , Gyeongbuk 38541 , Korea
| | | | - Bokyung Sung
- Department of Medical & Biological Engineering , Kyungpook National University , 80 Daehakro , Bukgu, Daegu 702-701 , Korea
| | | | - Maengjun Kim
- Korea Multi-Purpose Accelerator Complex , Korea Atomic Energy Research Institute , 181 Mirae-ro , Geoncheon-eup, Gyeongju , Gyeongbuk 305-353 , Korea
| | | | - Jeong Hyun Seo
- School of Chemical Engineering , Yeungnam University , 280 Daehakro , Gyeongsan , Gyeongbuk 38541 , Korea
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56
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Li C, Xu L, Liu Z, Li Z, Quan Z, Al Kheraif AA, Lin J. Current progress in the controlled synthesis and biomedical applications of ultrasmall (<10 nm) NaREF 4 nanoparticles. Dalton Trans 2018. [PMID: 29527602 DOI: 10.1039/c8dt00258d] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The design and fabrication of rare earth upconversion nanoparticle (UCNP)-based nanomedical platforms have evoked increasing interest. However, their bio-safety is always the most worrisome problem. Most nanoparticles can accumulate in the internal organs, leading to acute toxicity, a long-term inflammatory response, or even fibrosis and cancer. In contrast, ultrasmall (sub-10 nm) nanoparticles have minimal safety risk because they can escape from macrophages, pass biological barriers, and be easily degraded or excreted from the body. In this review, we mainly introduce new progress in preparation strategies, imaging and drug delivery with regards to ultrasmall UCNPs, with an emphasis on rare earth fluorides, NaREF4. Finally, we discuss the future outlook and challenges relating to ultrasmall UCNPs.
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Affiliation(s)
- Chunxia Li
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, P. R. China.
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57
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Shen JW, Wang Z, Wei X, Liu J, Wei Y. Facile ex situ NaF size/morphology tuning strategy for highly monodisperse sub-5 nm β-NaGdF4:Yb/Er. CrystEngComm 2018. [DOI: 10.1039/c7ce02141k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile ex situ NaF size/morphology tuning strategy for NaF release rate regulation was presented and successfully used to achieve time-saving controlled solvothermal synthesis of highly monodisperse/crystalline sub-5 nm β-NaGdF4:Yb/Er at a high growth temperature of 300 °C.
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Affiliation(s)
- Ji-Wei Shen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry & Materials Science
- Northwest University
- Xi'an 710069
- China
| | - Zhiqing Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry & Materials Science
- Northwest University
- Xi'an 710069
- China
| | - Xiaoxuan Wei
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry & Materials Science
- Northwest University
- Xi'an 710069
- China
| | - Jiawei Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry & Materials Science
- Northwest University
- Xi'an 710069
- China
| | - Yinmao Wei
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry & Materials Science
- Northwest University
- Xi'an 710069
- China
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58
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Chen ML, Pang SC, Chen XM, Yi-Zhang, Li L. Synthesis of permeable yolk-shell structured gadolinium-doped quantum dots as a potential nanoscale multimodal-visible delivery system. Talanta 2017; 175:280-288. [DOI: 10.1016/j.talanta.2017.07.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 07/10/2017] [Accepted: 07/13/2017] [Indexed: 11/26/2022]
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59
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Ni D, Bu W, Ehlerding EB, Cai W, Shi J. Engineering of inorganic nanoparticles as magnetic resonance imaging contrast agents. Chem Soc Rev 2017; 46:7438-7468. [PMID: 29071327 PMCID: PMC5705441 DOI: 10.1039/c7cs00316a] [Citation(s) in RCA: 264] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Magnetic resonance imaging (MRI) is a highly valuable non-invasive imaging tool owing to its exquisite soft tissue contrast, high spatial resolution, lack of ionizing radiation, and wide clinical applicability. Contrast agents (CAs) can be used to further enhance the sensitivity of MRI to obtain information-rich images. Recently, extensive research efforts have been focused on the design and synthesis of high-performance inorganic nanoparticle-based CAs to improve the quality and specificity of MRI. Herein, the basic rules, including the choice of metal ions, effect of electron motion on water relaxation, and involved mechanisms, of CAs for MRI have been elucidated in detail. In particular, various design principles, including size control, surface modification (e.g. organic ligand, silica shell, and inorganic nanolayers), and shape regulation, to impact relaxation of water molecules have been discussed in detail. Comprehensive understanding of how these factors work can guide the engineering of future inorganic nanoparticles with high relaxivity. Finally, we have summarized the currently available strategies and their mechanism for obtaining high-performance CAs and discussed the challenges and future developments of nanoparticulate CAs for clinical translation in MRI.
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Affiliation(s)
- Dalong Ni
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China.
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60
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Hu X, Lu F, Chen L, Tang Y, Hu W, Lu X, Ji Y, Yang Z, Zhang W, Yin C, Huang W, Fan Q. Perylene Diimide-Grafted Polymeric Nanoparticles Chelated with Gd 3+ for Photoacoustic/T 1-Weighted Magnetic Resonance Imaging-Guided Photothermal Therapy. ACS APPLIED MATERIALS & INTERFACES 2017; 9:30458-30469. [PMID: 28825456 DOI: 10.1021/acsami.7b09633] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Developing versatile and easily prepared nanomaterials with both imaging and therapeutic properties have received significant attention in cancer diagnostics and therapeutics. Here, we facilely fabricated Gd3+-chelated poly(isobutylene-alt-maleic anhydride) (PMA) framework pendent with perylene-3,4,9,10-tetracarboxylic diimide (PDI) derivatives and poly(ethylene glycol) (PEG) as an efficient theranostic platform for dual-modal photoacoustic imaging (PAI) and magnetic resonance imaging (MRI)-guided photothermal therapy. The obtained polymeric nanoparticles (NPs) chelated with Gd3+ (PMA-PDI-PEG-Gd NPs) exhibited a high T1 relaxivity coefficient (13.95 mM-1 s-1) even at the higher magnetic fields. After 3.5 h of tail vein injection of PMA-PDI-PEG-Gd NPs, the tumor areas showed conspicuous enhancement in both photoacoustic signal and T1-weighted MRI intensity, indicating the efficient accumulation of PMA-PDI-PEG-Gd NPs owing to the enhanced permeation and retention effect. In addition, the excellent tumor ablation therapeutic effect in vivo was demonstrated with living mice. Overall, our work illustrated a straightforward synthetic strategy for engineering multifunctional polymeric nanoparticles for dual-modal imaging to obtain more accurate information for efficient diagnosis and therapy.
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Affiliation(s)
- Xiaoming Hu
- Key Laboratory for Organic Electronics and Information Displays (KLOEID) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
| | - Feng Lu
- Key Laboratory for Organic Electronics and Information Displays (KLOEID) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
| | - Liang Chen
- Department of Orthopedics, Zhongnan Hospital of Wuhan University , Wuhan, Hubei 430071, China
| | - Yufu Tang
- Key Laboratory for Organic Electronics and Information Displays (KLOEID) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
| | - Wenbo Hu
- Key Laboratory for Organic Electronics and Information Displays (KLOEID) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
| | - Xiaomei Lu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech) , 30 South Puzhu Road, Nanjing 211816, China
| | - Yu Ji
- Key Laboratory for Organic Electronics and Information Displays (KLOEID) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
| | - Zhen Yang
- Key Laboratory for Organic Electronics and Information Displays (KLOEID) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
| | - Wansu Zhang
- Key Laboratory for Organic Electronics and Information Displays (KLOEID) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
| | - Chao Yin
- Key Laboratory for Organic Electronics and Information Displays (KLOEID) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
| | - Wei Huang
- Key Laboratory for Organic Electronics and Information Displays (KLOEID) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech) , 30 South Puzhu Road, Nanjing 211816, China
| | - Quli Fan
- Key Laboratory for Organic Electronics and Information Displays (KLOEID) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
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61
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Zuluaga S, Manchanda P, Zhang YY, Pantelides ST. Design of Optimally Stable Molecular Coatings for Fe-Based Nanoparticles in Aqueous Environments. ACS OMEGA 2017; 2:4480-4487. [PMID: 31457740 PMCID: PMC6641751 DOI: 10.1021/acsomega.7b00762] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 07/28/2017] [Indexed: 06/10/2023]
Abstract
Magnetic nanoparticles are widely used in biomedical and oil-well applications in aqueous, often harsh environments. The pursuit for high-saturation magnetization together with high stability of the molecular coating that prevents agglomeration and oxidation remains an active research area. Here, we report a detailed analysis of the criteria for the stability of molecular coatings in aqueous environments along with extensive first-principles calculations for magnetite, which has been widely used, and cementite, a promising emerging candidate. A key result is that the simple binding energies of molecules cannot be used as a definitive indicator of relative stability in a liquid environment. Instead, we find that H+ ions and water molecules facilitate the desorption of molecules from the surface. We further find that, because of differences in the geometry of crystal structures, molecules generally form stronger bonds on cementite surfaces than they do on magnetite surfaces. The net result is that molecular coatings of cementite nanoparticles are more stable. This feature, together with the better magnetic properties, makes cementite nanoparticles a promising candidate for biomedical and oil-well applications.
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Affiliation(s)
- Sebastian Zuluaga
- Department of Physics and Astronomy and Department of
Electrical Engineering
and Computer Science, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Priyanka Manchanda
- Department of Physics and Astronomy and Department of
Electrical Engineering
and Computer Science, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Yu-Yang Zhang
- Department of Physics and Astronomy and Department of
Electrical Engineering
and Computer Science, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Sokrates T. Pantelides
- Department of Physics and Astronomy and Department of
Electrical Engineering
and Computer Science, Vanderbilt University, Nashville, Tennessee 37235, United States
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62
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Chen H, Li X, Liu F, Zhang H, Wang Z. Renal Clearable Peptide Functionalized NaGdF 4 Nanodots for High-Efficiency Tracking Orthotopic Colorectal Tumor in Mouse. Mol Pharm 2017; 14:3134-3141. [PMID: 28727430 DOI: 10.1021/acs.molpharmaceut.7b00361] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The effective delivery of bioimaging probes to a selected cancerous tissue has extensive significance for biological studies and clinical investigations. Herein, the peptide functionalized NaGdF4 nanodots (termed as, pPeptide-NaGdF4 nanodots) have been prepared for highly efficient magnetic resonance imaging (MRI) of tumor by formation of Gd-phosphonate coordinate bonds among hydrophobic NaGdF4 nanodots (4.2 nm in diameter) with mixed phosphorylated peptide ligands including a tumor targeting phosphopeptide and a cell penetrating phosphopeptide. The tumor targeting pPeptide-NaGdF4 nanodots have paramagnetic property with ultrasmall hydrodynamic diameter (HD, c.a., 7.3 nm) which greatly improves their MRI contrast ability of tumor and facilitates renal clearance. In detail, the capability of the pPeptide-NaGdF4 nanodots as high efficient contrast agent for in vivo MRI is evaluated successfully through tracking small drug induced orthotopic colorectal tumor (c.a., 195 mm3 in volume) in mouse.
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Affiliation(s)
- Hongda Chen
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, P. R. China.,University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Xiaodong Li
- Department of Radiology, The First Hospital of Jilin University , Changchun 130021, P. R. China
| | - Fuyao Liu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, P. R. China
| | - Huimao Zhang
- Department of Radiology, The First Hospital of Jilin University , Changchun 130021, P. R. China
| | - Zhenxin Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, P. R. China
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63
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Liu K, Yan X, Xu YJ, Dong L, Hao LN, Song YH, Li F, Su Y, Wu YD, Qian HS, Tao W, Yang XZ, Zhou W, Lu Y. Sequential growth of CaF2:Yb,Er@CaF2:Gd nanoparticles for efficient magnetic resonance angiography and tumor diagnosis. Biomater Sci 2017; 5:2403-2415. [DOI: 10.1039/c7bm00797c] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
It is a significant challenge to develop nanoscale magnetic resonance imaging (MRI) contrast agents with high performance of relaxation.
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