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Palchoudhury S, Jungjohann KL, Weerasena L, Arabshahi A, Gharge U, Albattah A, Miller J, Patel K, Holler RA. Enhanced legume root growth with pre-soaking in α-Fe2O3 nanoparticle fertilizer. RSC Adv 2018; 8:24075-24083. [PMID: 35539206 PMCID: PMC9081864 DOI: 10.1039/c8ra04680h] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 06/28/2018] [Indexed: 11/21/2022] Open
Abstract
The rising demand for food and energy crops has triggered interest in the use of nanoparticles for agronomy. Specifically, iron oxide-based engineered nanoparticles are promising candidates for next-generation iron-deficiency fertilizers. We used iron oxide and hybrid Pt-decorated iron oxide nanoparticles, at low and high concentrations, and at varied pHs, to model seed pre-soaking solutions for investigation of their effect on embryonic root growth in legumes. This is an environmentally friendly approach, as it uses less fertilizer, therefore less nanoparticles in contact with the soil. Analysis from varied material characterization techniques combined with a statistical analysis method found that iron oxide nanoparticles could enhance root growth by 88–366% at low concentrations (5.54 × 10−3 mg L−1 Fe). Hybrid Pt-decorated iron oxide nanoparticles and a higher concentration of iron oxide nanoparticles (27.7 mg L−1 Fe) showed reduced root growth. The combined materials characterization and statistical analysis used here can be applied to address many environmental factors to finely tune the development of vital nanofertilizers for high efficiency food production. A new approach to increase root growth in legumes by pre-soaking seeds in iron oxide nanoparticle growth solution.![]()
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Affiliation(s)
- Soubantika Palchoudhury
- Department of Civil and Chemical Engineering
- University of Tennessee at Chattanooga
- Chattanooga
- USA
| | | | - Lakmali Weerasena
- Department of Mathematics
- University of Tennessee at Chattanooga
- Chattanooga
- USA
| | - Abdollah Arabshahi
- SimCenter and Department of Mechanical Engineering
- University of Tennessee at Chattanooga
- Chattanooga
- USA
| | - Uday Gharge
- Department of Civil and Chemical Engineering
- University of Tennessee at Chattanooga
- Chattanooga
- USA
| | - Abdulaziz Albattah
- Department of Civil and Chemical Engineering
- University of Tennessee at Chattanooga
- Chattanooga
- USA
| | - Justin Miller
- Department of Civil and Chemical Engineering
- University of Tennessee at Chattanooga
- Chattanooga
- USA
| | - Ketan Patel
- Department of Civil and Chemical Engineering
- University of Tennessee at Chattanooga
- Chattanooga
- USA
| | - Robert A. Holler
- Central Analytical Facility
- The University of Alabama
- Tuscaloosa
- USA
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2
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Xu Y, Sherwood JA, Lackey KH, Qin Y, Bao Y. The responses of immune cells to iron oxide nanoparticles. J Appl Toxicol 2016; 36:543-53. [PMID: 26817529 DOI: 10.1002/jat.3282] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 11/20/2015] [Accepted: 12/03/2015] [Indexed: 12/15/2022]
Abstract
Immune cells play an important role in recognizing and removing foreign objects, such as nanoparticles. Among various parameters, surface coatings of nanoparticles are the first contact with biological system, which critically affect nanoparticle interactions. Here, surface coating effects on nanoparticle cellular uptake, toxicity and ability to trigger immune response were evaluated on a human monocyte cell line using iron oxide nanoparticles. The cells were treated with nanoparticles of three types of coatings (negatively charged polyacrylic acid, positively charged polyethylenimine and neutral polyethylene glycol). The cells were treated at various nanoparticle concentrations (5, 10, 20, 30, 50 μg ml(-1) or 2, 4, 8, 12, 20 μg cm(-2)) with 6 h incubation or treated at a nanoparticle concentration of 50 μg ml(-1) (20 μg cm(-2)) at different incubation times (6, 12, 24, 48 or 72 h). Cell viability over 80% was observed for all nanoparticle treatment experiments, regardless of surface coatings, nanoparticle concentrations and incubation times. The much lower cell viability for cells treated with free ligands (e.g. ~10% for polyethylenimine) suggested that the surface coatings were tightly attached to the nanoparticle surfaces. The immune responses of cells to nanoparticles were evaluated by quantifying the expression of toll-like receptor 2 and tumor necrosis factor-α. The expression of tumor necrosis factor-α and toll-like receptor 2 were not significant in any case of the surface coatings, nanoparticle concentrations and incubation times. These results provide useful information to select nanoparticle surface coatings for biological and biomedical applications.
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Affiliation(s)
- Yaolin Xu
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama, USA
| | - Jennifer A Sherwood
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama, USA
| | - Kimberly H Lackey
- Department of Biological Science, The University of Alabama, Tuscaloosa, Alabama, USA
| | - Ying Qin
- Alabama Innovation and Mentoring of Entrepreneurs, The University of Alabama, Tuscaloosa, Alabama, USA
| | - Yuping Bao
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama, USA
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3
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Xu Y, Sherwood J, Qin Y, Holler RA, Bao Y. A general approach to the synthesis and detailed characterization of magnetic ferrite nanocubes. NANOSCALE 2015; 7:12641-9. [PMID: 26148705 DOI: 10.1039/c5nr03096j] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
A general approach to the synthesis and detailed characterization of magnetic ferrite nanocubes were reported, where the nanocubes were synthesized by the thermal decomposition of metal-oleate complexes following a step-heating method. The doping ions were introduced during the precursor preparation by forming M(2+)/Fe(3+) oleate mixed complex (M(2+) = Fe(2+), Mn(2+), Zn(2+), Cu(2+), Ca(2+), and Mg(2+)). The mechanistic studies showed that the presence of sodium oleate in combination with step-heating was critical for the formation of the cubic shapes for the doped magnetic ferrites. The nanocubes were extensively characterized, including morphology and crytsal structure by advanced transmission electron microscopy, doping level and distribution by energy dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy, cation distribution within the spinel structures by Fourier transform infrared and Raman spectroscopy, and magnetic properties by alternating gradient magnetometer at room temperature.
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Affiliation(s)
- Yaolin Xu
- Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA.
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4
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Surface charge and dosage dependent potential developmental toxicity and biodistribution of iron oxide nanoparticles in pregnant CD-1 mice. Reprod Toxicol 2014; 50:36-42. [DOI: 10.1016/j.reprotox.2014.09.010] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 09/15/2014] [Accepted: 09/19/2014] [Indexed: 11/22/2022]
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5
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Xu Y, Baiu DC, Sherwood JA, McElreath MR, Qin Y, Lackey KH, Otto M, Bao Y. Linker-free conjugation and specific cell targeting of antibody functionalized iron-oxide nanoparticles. J Mater Chem B 2014; 2:6198-6206. [PMID: 26660881 PMCID: PMC4675334 DOI: 10.1039/c4tb00840e] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Specific targeting is a key step to realize the full potential of iron oxide nanoparticles in biomedical applications, especially tumor-associated diagnosis and therapy. Here, we developed anti-GD2 antibody conjugated iron oxide nanoparticles for highly efficient neuroblastoma cell targeting. The antibody conjugation was achieved through an easy, linker-free method based on catechol reactions. The targeting efficiency and specificity of the antibody-conjugated nanoparticles to GD2-positive neuroblastoma cells were confirmed by flow cytometry, fluorescence microscopy, Prussian blue staining and transmission electron microscopy. These detailed studies indicated that the receptor-recognition capability of the antibody was fully retained after conjugation and the conjugated nanoparticles quickly attached to GD2-positive cells within four hours. Interestingly, longer treatment (12 h) led the cell membrane-bound nanoparticles to be internalized into cytosol, either by directly penetrating the cell membrane or escaping from the endosomes. Last but importantly, the uniquely designed functional surfaces of the nanoparticles allow easy conjugation of other bioactive molecules.
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Affiliation(s)
- Yaolin Xu
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, AL35487, USA
| | - Dana C. Baiu
- Department of Pediatrics, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Jennifer A. Sherwood
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, AL35487, USA
| | - Meghan R. McElreath
- Department of Pediatrics, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Ying Qin
- Alabama Innovation and Mentoring of Entrepreneurs, The University of Alabama, Tuscaloosa, AL35487, USA
| | - Kimberly H. Lackey
- Department of Biological Science, The University of Alabama, Tuscaloosa, AL35487, USA
| | - Mario Otto
- Department of Pediatrics, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Yuping Bao
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, AL35487, USA
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6
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Liang Q, Macher T, Xu Y, Bao Y, Cassady CJ. MALDI MS In-Source Decay of Glycans Using a Glutathione-Capped Iron Oxide Nanoparticle Matrix. Anal Chem 2014; 86:8496-503. [DOI: 10.1021/ac502422a] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Qiaoli Liang
- Department
of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Thomas Macher
- Department
of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Yaolin Xu
- Department
of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Yuping Bao
- Department
of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Carolyn J. Cassady
- Department
of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487, United States
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7
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Canfarotta F, Piletsky SA. Engineered magnetic nanoparticles for biomedical applications. Adv Healthc Mater 2014; 3:160-75. [PMID: 24497448 DOI: 10.1002/adhm.201300141] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Indexed: 12/11/2022]
Abstract
In the past decades, magnetic nanoparticles (MNPs) have been used in wide range of diverse applications, ranging from separation to sensing. Here, synthesis and applications of functionalized MNPs in the biomedical field are discussed, in particular in drug delivery, imaging, and cancer therapy, highlighting also recent progresses in the development of multifunctional and stimuli-responsive MNPs. The role of their size, composition, and surface functionalization is analyzed, together with their biocompatibility issues.
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8
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Melnyczuk JM, Palchoudhury S. Synthesis and Characterization of Iron Oxide Nanoparticles. HANDBOOK OF RESEARCH ON NANOSCIENCE, NANOTECHNOLOGY, AND ADVANCED MATERIALS 2014. [DOI: 10.4018/978-1-4666-5824-0.ch004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Iron oxide nanoparticles show great promise in bio-applications like drug delivery, magnetic resonance imaging, and hyperthermia. This is because the size of these magnetic nanoparticles is comparable to biomolecules and the particles can be removed via normal iron metabolic pathways. These nanoparticles are also attractive for industrial separations and catalysis because they can be magnetically recovered. However, the size, morphology, and surface coating of the iron oxide nanoparticles greatly affect their magnetic properties and biocompatibility. Therefore, nanoparticles with tunable characteristics are desirable. This chapter elaborates the synthesis techniques for the formation of iron oxide nanoparticles with good control over reproducibility, surface and magnetic properties, and morphology. The well-known co-precipitation and thermal decomposition methods are detailed in this chapter. The surface modification routes and characterization of these nanoparticles are also discussed. The chapter will be particularly useful for engineering/science graduate students and/or faculty interested in synthesizing iron oxide nanoparticles for specific research applications.
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9
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Xu Y, Sherwood J, Qin Y, Crowley D, Bonizzoni M, Bao Y. The role of protein characteristics in the formation and fluorescence of Au nanoclusters. NANOSCALE 2014; 6:1515-24. [PMID: 24322720 DOI: 10.1039/c3nr06040c] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Protein-encapsulated gold nanoclusters have shown many advantages over other gold nanocluster systems, including green synthesis, biocompatibility, high water solubility, and the ease of further conjugation. In this article, we systematically investigated the effects of the protein size and amino acid content on the formation and fluorescent properties of gold nanoclusters using four model proteins (bovine serum albumin, lysozyme, trypsin, and pepsin). We discovered that the balance of amine and tyrosine/tryptophan containing residues was critical for the nanocluster formation. Protein templates with low cysteine contents caused blue shifts in the fluorescent emissions and difference in fluorescent lifetimes of the gold nanoclusters. Furthermore, the protein size was found to be a critical factor for the photostability and long-term stability of gold nanoclusters. The size of the protein also affected the Au nanocluster behaviour after immobilization.
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Affiliation(s)
- Yaolin Xu
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, AL35487, USA.
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10
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Gao F, Qu H, Duan Y, Wang J, Song X, Ji T, Cao L, Nie G, Sun S. Dopamine coating as a general and facile route to biofunctionalization of superparamagnetic Fe3O4 nanoparticles for magnetic separation of proteins. RSC Adv 2014. [DOI: 10.1039/c3ra46938g] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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11
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Mao Y, Yi P, Deng Z, Ge J. Fe3O4–Ag heterostructure nanocrystals with tunable Ag domains and magnetic properties. CrystEngComm 2013. [DOI: 10.1039/c3ce40095f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Wang W, Savadogo O, Ma ZF. The oxygen reduction reaction on Pt/TiO x N y -based electrocatalyst for PEM fuel cell applications. J APPL ELECTROCHEM 2012. [DOI: 10.1007/s10800-012-0452-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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13
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Kim KW, Kim SM, Choi S, Kim J, Lee IS. Electroless Pt deposition on Mn3O4 nanoparticles via the galvanic replacement process: electrocatalytic nanocomposite with enhanced performance for oxygen reduction reaction. ACS NANO 2012; 6:5122-5129. [PMID: 22578142 DOI: 10.1021/nn300782m] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A novel electroless Pt deposition method was exploited by employing the galvanic replacement process occurring between the Mn(3)O(4) surface and PtCl(4)(2-) complexes. The newly discovered process provides a simple protocol to produce the catalytic nanocomposite, in which a high density of ultrafine Pt nanocrystals is stably immobilized in a homogeneously dispersive state on the surface of Mn(3)O(4) nanoparticles. When the eletrocatalytic activity was tested for the oxygen reduction reaction, which limits the rate of the overall process in proton-exchange membrane fuel cells, the resulting Pt/Mn(3)O(4) nanocomposite showed highly enhanced specific activity and durability, compared with those of the commercial Pt/C catalyst.
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Affiliation(s)
- Ki Woong Kim
- Department of Applied Chemistry, Kyung Hee University, Gyeonggi-do 446-701, Korea
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14
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Xu Y, Palchoudhury S, Qin Y, Macher T, Bao Y. Make conjugation simple: a facile approach to integrated nanostructures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:8767-8772. [PMID: 22607168 DOI: 10.1021/la301200g] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report a facile approach to the conjugation of protein-encapsulated gold fluorescent nanoclusters to the iron oxide nanoparticles through catechol reaction. This method eliminates the use of chemical linkers and can be readily extended to the conjugation of biological molecules and other nanomaterials onto nanoparticle surfaces. The key to the success was producing water-soluble iron oxide nanoparticles with active catechol groups. Further, advanced electron microscopy analysis of the integrated gold nanoclusters and iron oxide nanoparticles provided direct evidence of the presence of a single fluorescent nanocluster per protein template. Interestingly, the integrated nanoparticles exhibited enhanced fluorescent emission in biological media. These studies will provide significantly practical value in chemical conjugation, the development of multifunctional nanostructures, and exploration of multifunctional nanoparticles for biological applications.
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Affiliation(s)
- Yaolin Xu
- Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama 35487, USA
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15
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Palchoudhury S, Xu Y, Rushdi A, Holler RA, Bao Y. Controlled synthesis of iron oxide nanoplates and nanoflowers. Chem Commun (Camb) 2012; 48:10499-501. [DOI: 10.1039/c2cc35945f] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Xu S, Luo Z, Han Y, Guo J, Wang C. Ultrafast microwave-assisted synthesis of MCNCs with high saturation magnetization and sustained aqueous stability. RSC Adv 2012. [DOI: 10.1039/c2ra01169g] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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17
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Xu Y, Qin Y, Palchoudhury S, Bao Y. Water-soluble iron oxide nanoparticles with high stability and selective surface functionality. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:8990-7. [PMID: 21644795 DOI: 10.1021/la201652h] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The water dispensability and stability of high quality iron oxide nanoparticles synthesized in organic solvents are major issues for biomedical and biological applications. In this paper, a versatile approach for preparing water-soluble iron oxide nanoparticles with great stability and selective surface functionality (-COOH, -NH(2), or -SH) was demonstrated. The hydrophobic nanoparticles were first synthesized by the thermal decomposition of an iron oleate complex in organic solvent. Subsequently, the hydrophobic coatings of nanoparticles were replaced with poly(acrylic acid) , polyethylenimine, or glutathione, yielding charged nanoparticles in aqueous solution. Two parameters were found to be critical for obtaining highly stable nanoparticle dispersions: the original coating and the surfactant-to-nanoparticle ratio. These charged nanoparticles exhibited different stabilities in biological buffers, which were directly influenced by the surface coatings. This report will provide significant practical value in exploring the biological or biomedical applications of iron oxide nanoparticles.
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Affiliation(s)
- Yaolin Xu
- Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama 35487, United States
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