1
|
Formation of hydrated PEG layers on magnetic iron oxide nanoflowers shows internal magnetisation dynamics and generates high in-vivo efficacy for MRI and magnetic hyperthermia. Acta Biomater 2022; 152:393-405. [PMID: 36007780 PMCID: PMC10141539 DOI: 10.1016/j.actbio.2022.08.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 08/12/2022] [Accepted: 08/15/2022] [Indexed: 11/24/2022]
Abstract
Multicore magnetic iron oxide nanoparticles, nanoflowers (NFs), have potential biomedical applications as efficient mediators for AC-magnetic field hyperthermia and as contrast agents for magnetic resonance imaging due to their strong magnetic responses arising from complex internal magnetic ordering. To realise these applications amenable surface chemistry must be engineered that maintain particle dispersion. Here a catechol-derived grafting approach is described to strongly bind polyethylene glycol (PEG) to NFs and provide stable hydrogen-bonded hydrated layers that ensure good long-term colloidal stability in buffers and media even at clinical MRI field strength and high concentration. The approach enables the first comprehensive study into the MRI (relaxivity) and hyperthermic (SAR) efficiencies of fully dispersed NFs. The predominant role of internal magnetisation dynamics in providing high relaxivity and SAR is confirmed, and it is shown that these properties are unaffected by PEG molecular weight or corona formation in biological environments. This result is in contrast to traditional single core nanoparticles which have significantly reduced SAR and relaxivity upon PEGylation and on corona formation, attributed to reduced Brownian contributions and weaker NP solvent interactions. The PEGylated NF suspensions described here exhibit usable blood circulation times and promising retention of relaxivity in-vivo due to the strongly anchored PEG layer. This approach to biomaterials design addresses the challenge of maintaining magnetic efficiency of magnetic nanoparticles in-vivo for applications as theragnostic agents. STATEMENT OF SIGNIFICANCE: : Application of multicore magnetic iron-oxide nanoflowers (NFs) as efficient mediators for AC-field hyperthermia and as contrast agents for MR imaging has been limited by lack of colloidal stability in complex media and biosystems. The optimized materials design presented is shown to reproducibly provide PEG grafted NF suspensions of exceptional colloidal stability in buffers and complex media, with significant hyperthermic and MRI utility which is unaffected by PEG length, anchoring group or bio-molecular adsorption. Deposition in the selected pancreatic model mirrors liposomal formulations providing a quantifiable probe of tissue-level liposome deposition and relaxivity is retained in the tumour microenvironment. Hence the biomaterials design addresses the longstanding challenges of maintaining the in vivo magnetic efficiency of nanoparticles as theragnostic agents.
Collapse
|
2
|
Queiros Campos J, Boulares M, Raboisson-Michel M, Verger-Dubois G, García Fernández JM, Godeau G, Kuzhir P. Improved Magneto-Microfluidic Separation of Nanoparticles through Formation of the β-Cyclodextrin-Curcumin Inclusion Complex. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:14345-14359. [PMID: 34855402 DOI: 10.1021/acs.langmuir.1c02245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Molecular adsorption to the nanoparticle surface may switch the colloidal interactions from repulsive to attractive and promote nanoparticle agglomeration. If the nanoparticles are magnetic, then their agglomerates exhibit a much stronger response to external magnetic fields than individual nanoparticles. Coupling between adsorption, agglomeration, and magnetism allows a synergy between the high specific area of nanoparticles (∼100 m2/g) and their easy guidance or separation by magnetic fields. This yet poorly explored concept is believed to overcome severe restrictions for several biomedical applications of magnetic nanoparticles related to their poor magnetic remote control. In this paper, we test this concept using curcumin (CUR) binding (adsorption) to β-cyclodextrin (βCD)-coated iron oxide nanoparticles (IONP). CUR adsorption is governed by host-guest hydrophobic interactions with βCD through the formation of 1:1 and, possibly, 2:1 βCD:CUR inclusion complexes on the IONP surface. A 2:1 stoichiometry is supposed to promote IONP primary agglomeration, facilitating the formation of the secondary needle-like agglomerates under external magnetic fields and their magneto-microfluidic separation. The efficiency of these field-induced processes increases with CUR concentration and βCD surface density, while their relatively short timescale (<5 min) is compatible with magnetic drug delivery application.
Collapse
Affiliation(s)
- J Queiros Campos
- University Côte d'Azur, CNRS UMR 7010, Institute of Physics of Nice (INPHYNI) - Parc Valrose, Nice 06108, France
| | - M Boulares
- University of Carthage, Faculty of Sciences of Bizerte, Centre des Recherches et des Technologies des Eaux (CERTE) Technopole de Borj-Cédria, Route touristique de Soliman BPn° 273, Soliman 8020, Tunisia
| | - M Raboisson-Michel
- University Côte d'Azur, CNRS UMR 7010, Institute of Physics of Nice (INPHYNI) - Parc Valrose, Nice 06108, France
- Axlepios Biomedical, 1st Avenue, 5th Street, Carros 06510, France
| | - G Verger-Dubois
- Axlepios Biomedical, 1st Avenue, 5th Street, Carros 06510, France
| | - J M García Fernández
- Instituto de Investigaciones Qumicas, CSIC and Universidad de Sevilla, Av. Amrico Vespucio 49, Isla de la Cartuja, Sevilla 41092, Spain
| | - G Godeau
- University Côte d'Azur, CNRS UMR 7010, Institute of Physics of Nice (INPHYNI) - Parc Valrose, Nice 06108, France
| | - P Kuzhir
- University Côte d'Azur, CNRS UMR 7010, Institute of Physics of Nice (INPHYNI) - Parc Valrose, Nice 06108, France
| |
Collapse
|
3
|
Queiros Campos J, Checa-Fernandez BL, Marins JA, Lomenech C, Hurel C, Godeau G, Raboisson-Michel M, Verger-Dubois G, Bee A, Talbot D, Kuzhir P. Adsorption of Organic Dyes on Magnetic Iron Oxide Nanoparticles. Part II: Field-Induced Nanoparticle Agglomeration and Magnetic Separation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:10612-10623. [PMID: 34436906 DOI: 10.1021/acs.langmuir.1c02021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This paper (part II) is devoted to the effect of molecular adsorption on the surface of magnetic iron oxide nanoparticles (IONP) on the enhancement of their (secondary) field-induced agglomeration and magnetic separation. Experimentally, we use Methylene Blue (MB) cationic dye adsorption on citrate-coated maghemite nanoparticles to provoke primary agglomeration of IONP in the absence of the field. The secondary agglomeration is manifested through the appearance of needlelike micron-sized agglomerates in the presence of an applied magnetic field. With the increasing amount of adsorbed MB molecules, the size of the field-induced agglomerates increases and the magnetic separation on a magnetized micropillar becomes more efficient. These effects are mainly governed by the ratio of magnetic-to-thermal energy α, suspension supersaturation Δ0, and Brownian diffusivity Deff of primary agglomerates. The three parameters (α, Δ0, and Deff) are implicitly related to the surface coverage θ of IONP by MB molecules through the hydrodynamic size of primary agglomerates exponentially increasing with θ. Experiments and developed theoretical models allow quantitative evaluation of the θ effect on the efficiency of the secondary agglomeration and magnetic separation.
Collapse
Affiliation(s)
- J Queiros Campos
- Université Côte d'Azur, CNRS UMR 7010 Institute of Physics of Nice (INPHYNI), Parc Valrose, 06108 Nice, France
| | - B L Checa-Fernandez
- Department of Applied Physics, University of Granada, Avenida de la Fuente Nueva, 18071 Granada, Spain
- CEIT-Basque Research and Technology Alliance (BRTA) and Tecnun, University of Navarra, 20018 Donostia/San Sebastián, Spain
| | - J A Marins
- Université Côte d'Azur, CNRS UMR 7010 Institute of Physics of Nice (INPHYNI), Parc Valrose, 06108 Nice, France
| | - C Lomenech
- Université Côte d'Azur, CNRS UMR 7010 Institute of Physics of Nice (INPHYNI), Parc Valrose, 06108 Nice, France
| | - Ch Hurel
- Université Côte d'Azur, CNRS UMR 7010 Institute of Physics of Nice (INPHYNI), Parc Valrose, 06108 Nice, France
| | - G Godeau
- Université Côte d'Azur, CNRS UMR 7010 Institute of Physics of Nice (INPHYNI), Parc Valrose, 06108 Nice, France
| | - M Raboisson-Michel
- Université Côte d'Azur, CNRS UMR 7010 Institute of Physics of Nice (INPHYNI), Parc Valrose, 06108 Nice, France
- Axlepios Biomedical, 1ere Avenue 5eme rue, 06510 Carros, France
| | - G Verger-Dubois
- Axlepios Biomedical, 1ere Avenue 5eme rue, 06510 Carros, France
| | - A Bee
- Sorbonne Université, CNRS, UMR 8234, PHENIX, 4 place Jussieu, 75252 Paris Cedex 5, France
| | - D Talbot
- Sorbonne Université, CNRS, UMR 8234, PHENIX, 4 place Jussieu, 75252 Paris Cedex 5, France
| | - P Kuzhir
- Université Côte d'Azur, CNRS UMR 7010 Institute of Physics of Nice (INPHYNI), Parc Valrose, 06108 Nice, France
| |
Collapse
|
4
|
Talbot D, Queiros Campos J, Checa-Fernandez BL, Marins J, Lomenech C, Hurel C, Godeau GD, Raboisson-Michel M, Verger-Dubois G, Obeid L, Kuzhir P, Bee A. Adsorption of Organic Dyes on Magnetic Iron Oxide Nanoparticles. Part I: Mechanisms and Adsorption-Induced Nanoparticle Agglomeration. ACS OMEGA 2021; 6:19086-19098. [PMID: 34337247 PMCID: PMC8320151 DOI: 10.1021/acsomega.1c02401] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 07/05/2021] [Indexed: 06/01/2023]
Abstract
This series of two papers is devoted to the effect of organic dye (methylene blue, MB; or methyl orange, MO) adsorption on the surface of either bare or citrate-coated magnetic iron oxide nanoparticles (IONPs) on their primary agglomeration (in the absence of an applied magnetic field) and secondary field-induced agglomeration. The present paper (Part I) is focused on physicochemical mechanisms of dye adsorption and adsorption-induced primary agglomeration of IONPs. Dye adsorption to oppositely charged IONPs is found to be mostly promoted by electrostatic interactions and is very sensitive to pH and ionic strength variations. The shape of adsorption isotherms is correctly reproduced by the Langmuir law. For the particular MB/citrated IONP pair, the maximum surface density of adsorbed MB seems to correspond to the packing density of an adsorbed monolayer rather than to the surface density of the available adsorption sites. MB is shown to form H-aggregates on the surface of citrate-coated IONPs. The effective electric charge on the IONP surface remains nearly constant in a broad range of surface coverages by MB due to the combined action of counterion exchange and counterion condensation. Primary agglomeration of IONPs (revealed by an exponential increase of hydrodynamic size with surface coverage by MB) probably comes from correlation attractions or π-stacking aromatic interactions between adsorbed MB molecules or H-aggregates. From the application perspective, the maximum adsorption capacity is 139 ± 4 mg/g for the MB/citrated IONP pair (pH = 4-11) and 257 ± 16 mg/g for the MO/bare IONP pair (pH ∼ 4). Citrated IONPs have shown a good potential for their reusability in water treatment, with the adsorption efficiency remaining about 99% after nine adsorption/desorption cycles.
Collapse
Affiliation(s)
- Delphine Talbot
- Sorbonne
Université, CNRS, UMR 8234, PHENIX, 4 place Jussieu, 75252 Paris Cedex 5, France
| | - Jordy Queiros Campos
- Université
Côte d’Azur, CNRS UMR 7010 Institute of Physics of Nice
(INPHYNI), Parc Valrose, 06108 Nice, France
| | - Blanca L. Checa-Fernandez
- Department
of Applied Physics, University of Granada, Avenida de la Fuente Nueva, 18071 Granada, Spain
- CEIT-Basque
Research and Technology Alliance (BRTA) and Tecnun, University of Navarra, 20018 Donostia/San Sebastián, Spain
| | - Jéssica
A. Marins
- Université
Côte d’Azur, CNRS UMR 7010 Institute of Physics of Nice
(INPHYNI), Parc Valrose, 06108 Nice, France
| | - Claire Lomenech
- Université
Côte d’Azur, CNRS UMR 7010 Institute of Physics of Nice
(INPHYNI), Parc Valrose, 06108 Nice, France
| | - Charlotte Hurel
- Université
Côte d’Azur, CNRS UMR 7010 Institute of Physics of Nice
(INPHYNI), Parc Valrose, 06108 Nice, France
| | - Guilhem D. Godeau
- Université
Côte d’Azur, CNRS UMR 7010 Institute of Physics of Nice
(INPHYNI), Parc Valrose, 06108 Nice, France
| | - Maxime Raboisson-Michel
- Université
Côte d’Azur, CNRS UMR 7010 Institute of Physics of Nice
(INPHYNI), Parc Valrose, 06108 Nice, France
- Axlepios
Biomedical, 1ere Avenue
5eme rue, 06510 Carros, France
| | | | - Layaly Obeid
- Sorbonne
Université, CNRS, UMR 8234, PHENIX, 4 place Jussieu, 75252 Paris Cedex 5, France
| | - Pavel Kuzhir
- Université
Côte d’Azur, CNRS UMR 7010 Institute of Physics of Nice
(INPHYNI), Parc Valrose, 06108 Nice, France
| | - Agnès Bee
- Sorbonne
Université, CNRS, UMR 8234, PHENIX, 4 place Jussieu, 75252 Paris Cedex 5, France
| |
Collapse
|
5
|
Abstract
Magnetophoresis offers many advantages for manipulating magnetic targets in microsystems. The integration of micro-flux concentrators and micro-magnets allows achieving large field gradients and therefore large reachable magnetic forces. However, the associated fabrication techniques are often complex and costly, and besides, they put specific constraints on the geometries. Magnetic composite polymers provide a promising alternative in terms of simplicity and fabrication costs, and they open new perspectives for the microstructuring, design, and integration of magnetic functions. In this review, we propose a state of the art of research works implementing magnetic polymers to trap or sort magnetic micro-beads or magnetically labeled cells in microfluidic devices.
Collapse
|
6
|
Schwaminger SP, Schwarzenberger K, Gatzemeier J, Lei Z, Eckert K. Magnetically Induced Aggregation of Iron Oxide Nanoparticles for Carrier Flotation Strategies. ACS APPLIED MATERIALS & INTERFACES 2021; 13:20830-20844. [PMID: 33884871 DOI: 10.1021/acsami.1c02919] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
On the nanoscale, iron oxides can be used for multiple applications ranging from medical treatment to biotechnology. We aimed to utilize the specific properties of these nanoparticles for new process concepts in flotation. Magnetic nanoparticles were synthesized by alkaline coprecipitation, leading to a primary particle size of 9 nm, and coated with oleate. The nanomaterial was characterized for its superparamagnetism and its colloidal stability at different ionic strengths, with and without an external magnetic field. The nanomaterial was used for model experiments on magnetic carrier flotation of microplastic particles, based on magnetically induced heteroagglomeration. We were able to demonstrate the magnetically induced aggregation of the nanoparticles which allows for new flotation strategies. Since the nanomaterial has zero remanent magnetization, the agglomeration is reversible which facilitates the process control. Magnetic carrier flotation based on iron oxide nanoparticles can pave the way to promising new recycling processes for microplastic wastes.
Collapse
Affiliation(s)
- Sebastian P Schwaminger
- Bioseparation Engineering Group, Department of Mechanical Engineering, Technical University of Munich, Boltzmannstraße 15, 85748 Garching, Germany
| | - Karin Schwarzenberger
- Institute of Fluid Dynamics, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
- Institute of Process Engineering and Environmental Technology, TU Dresden, 01062 Dresden, Germany
| | - Jacqueline Gatzemeier
- Bioseparation Engineering Group, Department of Mechanical Engineering, Technical University of Munich, Boltzmannstraße 15, 85748 Garching, Germany
| | - Zhe Lei
- Institute of Fluid Dynamics, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
- Institute of Process Engineering and Environmental Technology, TU Dresden, 01062 Dresden, Germany
| | - Kerstin Eckert
- Institute of Fluid Dynamics, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
- Institute of Process Engineering and Environmental Technology, TU Dresden, 01062 Dresden, Germany
| |
Collapse
|
7
|
Reusable magnetite nanoparticles-biochar composites for the efficient removal of chromate from water. Sci Rep 2020; 10:19007. [PMID: 33149170 PMCID: PMC7642354 DOI: 10.1038/s41598-020-75924-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 10/18/2020] [Indexed: 11/29/2022] Open
Abstract
Biochar (BC) and magnetite (Fe3O4) nanoparticles (MNP) have both received considerable recent attention in part due to their potential use in water treatment. While both are effective independently in the removal of a range of anionic metals from aqueous solution, the efficacy of these materials is reduced considerably at neutral pH due to decreased metal adsorption and MNP aggregation. In addition to synthetic metal oxide–biochar composites for use in treatment and remediation technologies, aggregates may also occur in nature when pyrolytic carbon is deposited in soils. In this study, we tested whether magnetite synthesized in the presence of biochar leads to increased removal efficiency of hexavalent chromium, Cr(VI), at the mildly acidic to neutral pH values characteristic of most natural and contaminated aqueous environments. To do so, magnetite nanoparticles and biochar produced from ground willow were synthesized to form composites (MNP–BC). Batch studies showed that MNP–BC markedly enhanced both adsorption and reduction of Cr(VI) from aqueous solution at acidic to neutral pH as compared to MNP and BC separately, suggesting a strong synergetic effect of hybridizing Fe3O4 with BC. Mechanistically, the Cr(VI) removal processes occurred through both adsorption and intraparticle diffusion followed by reduction to Cr(III). Synchrotron-based X-ray absorption spectroscopy analyses confirmed that Cr(VI) was reduced at the surface of MNP–BC, with electrons derived directly from both biochar and magnetite at low pH, while at near-neutral pH, biochar increased Cr(VI) reduction by inhibiting MNP aggregation. Extended X-ray absorption fine structure fitting results confirmed that the Cr(III) precipitates consist of Cr(OH)3 and chromite (Cr2FeO4) nanoparticles. Our results demonstrate that MNP–BC composites have great potential as a material for the treatment of chromate-containing aqueous solutions across a wide range of pH values, and provide information valuable broadly relevant to soils and sediments that contain biochar.
Collapse
|
8
|
Krasia-Christoforou T, Socoliuc V, Knudsen KD, Tombácz E, Turcu R, Vékás L. From Single-Core Nanoparticles in Ferrofluids to Multi-Core Magnetic Nanocomposites: Assembly Strategies, Structure, and Magnetic Behavior. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2178. [PMID: 33142887 PMCID: PMC7692798 DOI: 10.3390/nano10112178] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 12/20/2022]
Abstract
Iron oxide nanoparticles are the basic components of the most promising magnetoresponsive nanoparticle systems for medical (diagnosis and therapy) and bio-related applications. Multi-core iron oxide nanoparticles with a high magnetic moment and well-defined size, shape, and functional coating are designed to fulfill the specific requirements of various biomedical applications, such as contrast agents, heating mediators, drug targeting, or magnetic bioseparation. This review article summarizes recent results in manufacturing multi-core magnetic nanoparticle (MNP) systems emphasizing the synthesis procedures, starting from ferrofluids (with single-core MNPs) as primary materials in various assembly methods to obtain multi-core magnetic particles. The synthesis and functionalization will be followed by the results of advanced physicochemical, structural, and magnetic characterization of multi-core particles, as well as single- and multi-core particle size distribution, morphology, internal structure, agglomerate formation processes, and constant and variable field magnetic properties. The review provides a comprehensive insight into the controlled synthesis and advanced structural and magnetic characterization of multi-core magnetic composites envisaged for nanomedicine and biotechnology.
Collapse
Affiliation(s)
- Theodora Krasia-Christoforou
- Department of Mechanical and Manufacturing Engineering, University of Cyprus, 75 Kallipoleos Avenue, P.O. Box 20537, Nicosia 1678, Cyprus;
| | - Vlad Socoliuc
- Laboratory of Magnetic Fluids, Center for Fundamental and Advanced Technical Research, Romanian Academy–Timisoara Branch, Mihai Viteazul Ave. 24, 300223 Timisoara, Romania;
| | - Kenneth D. Knudsen
- Department for Neutron Materials Characterization, Institute for Energy Technology (IFE), 2027 Kjeller, Norway;
| | - Etelka Tombácz
- Soós Ernő Water Technology Research and Development Center, University of Pannonia, Zrínyi M. Str. 18., H-8800 Nagykanizsa, Hungary;
| | - Rodica Turcu
- Department of Physics of Nanostructured Systems, National Institute for Research and Development of Isotopic and Molecular Technologies, Donat Str. 67-103, 400293 Cluj-Napoca, Romania
| | - Ladislau Vékás
- Laboratory of Magnetic Fluids, Center for Fundamental and Advanced Technical Research, Romanian Academy–Timisoara Branch, Mihai Viteazul Ave. 24, 300223 Timisoara, Romania;
| |
Collapse
|
9
|
Raboisson-Michel M, Queiros Campos J, Schaub S, Zubarev A, Verger-Dubois G, Kuzhir P. Kinetics of field-induced phase separation of a magnetic colloid under rotating magnetic fields. J Chem Phys 2020; 153:154902. [DOI: 10.1063/5.0023706] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- M. Raboisson-Michel
- Université Côte d’Azur, CNRS UMR 7010, Institute of Physics of Nice, Parc Valrose, 06108 Nice, France
- Axlepios Biomedical, 1ere Avenue 5eme rue, 06510 Carros, France
| | - J. Queiros Campos
- Université Côte d’Azur, CNRS UMR 7010, Institute of Physics of Nice, Parc Valrose, 06108 Nice, France
| | - S. Schaub
- Sorbonne University, CNRS, Developmental Biology Laboratory (LBDV), Quai de la Darse, 06234 Villefranche-sur-Mer Cedex, France
| | - A. Zubarev
- Theoretical and Mathematical Physics Department, Institute of Natural Sciences and Mathematics, Ural Federal University, Lenin Ave., 51, Ekaterinburg 620083, Russia
- M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia
| | | | - P. Kuzhir
- Université Côte d’Azur, CNRS UMR 7010, Institute of Physics of Nice, Parc Valrose, 06108 Nice, France
| |
Collapse
|
10
|
Zaw Thin M, Allan H, Bofinger R, Kostelec TD, Guillaume S, Connell JJ, Patrick PS, Hailes HC, Tabor AB, Lythgoe MF, Stuckey DJ, Kalber TL. Multi-modal imaging probe for assessing the efficiency of stem cell delivery to orthotopic breast tumours. NANOSCALE 2020; 12:16570-16585. [PMID: 32749427 PMCID: PMC7586303 DOI: 10.1039/d0nr03237a] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 07/09/2020] [Indexed: 05/05/2023]
Abstract
Stem cells have been utilised as anti-cancer agents due to their ability to home to and integrate within tumours. Methods to augment stem cell homing to tumours are being investigated with the goal of enhancing treatment efficacy. However, it is currently not possible to evaluate both cell localisation and cell viability after engraftment, hindering optimisation of therapy. In this study, luciferase-expressing human adipocyte-derived stem cells (ADSCs) were incubated with Indium-111 radiolabelled iron oxide nanoparticles to produce cells with tri-modal imaging capabilities. ADSCs were administered intravenously (IV) or intracardially (IC) to mice bearing orthotopic breast tumours. Cell fate was monitored using bioluminescence imaging (BLI) as a measure of cell viability, magnetic resonance imaging (MRI) for cell localisation and single photon emission computer tomography (SPECT) for cell quantification. Serial monitoring with multi-modal imaging showed the presence of viable ADSCs within tumours as early as 1-hour post IC injection and the percentage of ADSCs within tumours to be 2-fold higher after IC than IV. Finally, histological analysis was used to validate engraftment of ADSC within tumour tissue. These findings demonstrate that multi-modal imaging can be used to evaluate the efficiency of stem cell delivery to tumours and that IC cell administration is more effective for tumour targeting.
Collapse
Affiliation(s)
- May Zaw Thin
- UCL Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London, WC1E 6DD, UK.
| | - Helen Allan
- Department of Chemistry, University College London, 20, Gordon Street, London, WC1H 0AJ, UK
| | - Robin Bofinger
- Department of Chemistry, University College London, 20, Gordon Street, London, WC1H 0AJ, UK
| | - Tomas D Kostelec
- Department of Chemistry, University College London, 20, Gordon Street, London, WC1H 0AJ, UK
| | - Simon Guillaume
- Department of Chemistry, University College London, 20, Gordon Street, London, WC1H 0AJ, UK
| | - John J Connell
- UCL Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London, WC1E 6DD, UK.
| | - P Stephen Patrick
- UCL Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London, WC1E 6DD, UK.
| | - Helen C Hailes
- Department of Chemistry, University College London, 20, Gordon Street, London, WC1H 0AJ, UK
| | - Alethea B Tabor
- Department of Chemistry, University College London, 20, Gordon Street, London, WC1H 0AJ, UK
| | - Mark F Lythgoe
- UCL Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London, WC1E 6DD, UK.
| | - Daniel J Stuckey
- UCL Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London, WC1E 6DD, UK.
| | - Tammy L Kalber
- UCL Centre for Advanced Biomedical Imaging, Division of Medicine, University College London, London, WC1E 6DD, UK.
| |
Collapse
|
11
|
Hou Z, Liu Y, Xu J, Zhu J. Surface engineering of magnetic iron oxide nanoparticles by polymer grafting: synthesis progress and biomedical applications. NANOSCALE 2020; 12:14957-14975. [PMID: 32648868 DOI: 10.1039/d0nr03346d] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Magnetic iron oxide nanoparticles (IONPs) have wide applications in magnetic resonance imaging (MRI), biomedicine, drug delivery, hyperthermia therapy, catalysis, magnetic separation, and others. However, these applications are usually limited by irreversible agglomeration of IONPs in aqueous media because of their dipole-dipole interactions, and their poor stability. A protecting polymeric shell provides IONPs with not only enhanced long-term stability, but also the functionality of polymer shells. Therefore, polymer-grafted IONPs have recently attracted much attention of scientists. In this tutorial review, we will present the current strategies for grafting polymers onto the surface of IONPs, basically including "grafting from" and "grafting to" methods. Available functional groups and chemical reactions, which could be employed to bind polymers onto the IONP surface, are comprehensively summarized. Moreover, the applications of polymer-grafted IONPs will be briefly discussed. Finally, future challenges and perspectives in the synthesis and application of polymer-grafted IONPs will also be discussed.
Collapse
Affiliation(s)
- Zaiyan Hou
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China.
| | - Yijing Liu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China.
| | - Jiangping Xu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China.
| | - Jintao Zhu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China.
| |
Collapse
|
12
|
Akhtar K, Javed Y, Jamil Y, Muhammad F. Functionalized cobalt ferrite cubes: toxicity, interactions and mineralization into ferritin proteins. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01484-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
|
13
|
Abstract
Magnetic iron oxide nanoclusters, which refers to a group of individual nanoparticles, have recently attracted much attention because of their distinctive behaviors compared to individual nanoparticles. In this review, we discuss preparation methods for creating iron oxide nanoclusters, focusing on synthetic procedures, formation mechanisms, and the quality of the products. Then, we discuss the emerging applications for iron oxide nanoclusters in various fields, covering traditional and novel applications in magnetic separation, bioimaging, drug delivery, and magnetically responsive photonic crystals.
Collapse
|
14
|
Uskoković V, Huynh E, Tang S, Jovanović S, Wu VM. Colloids or powders: Which nanoparticle formulations do cells like more? Colloids Surf B Biointerfaces 2019; 181:39-47. [PMID: 31121380 DOI: 10.1016/j.colsurfb.2019.05.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 05/08/2019] [Accepted: 05/09/2019] [Indexed: 01/24/2023]
Abstract
Understanding the difference in physicochemical properties and biological response between colloidal and powder formulations of identical materials is important before the given materials are used in a medical milieu. In this study we compared a set of biological effects of colloidal and powder formulations of composite nanoparticles comprising superparamagnetic iron oxide cores and silicate/carbon shells. Magnetic dipole interaction between adjacent nanoparticles was more pronounced in their powders than in their colloidal formulations. Nanoparticles delivered as powders were thus more responsive to the magnetic field, but exhibited reduced uptake in bone and brain cancer cells, including K7M2 osteosarcoma line and U87 and E297 glioblastoma lines. Specifically, while the alternate magnetic field elicited a more rapid heat generation in cell culture media supplemented with the magnetic powders, the nanoparticles dispersed in the same media were uptaken by the cancer cells more copiously. The cellular uptake proved to be more crucial in defining the effect on cell survival, given that suspended formulations elicited a greater degree of cancer cell death in the magnetic field compared to the powder-containing formulations. Because of this effect, colloidal formulations were able to target cancer cells more effectively than the powders: they reduced the viability of all three tested cancer cell lines to a significantly greater degree that the viability of the normal, MDCK-MDR1 cell line. It is concluded that better uptake profile can make up for the lower heating rate in the AC field and lead to a more effective magnetic hyperthermia therapy. These results also demonstrate that the direct delivery of ferrofluids is more optimal than the administration of their constitutive particles as powders.
Collapse
Affiliation(s)
- Vuk Uskoković
- Department of Bioengineering, University of Illinois, Chicago, IL 60607, United States; Advanced Materials and Nanobiotechnology Laboratory, Center for Targeted Drug Delivery, Chapman University, Irvine, CA 92618-1908, United States.
| | - Eric Huynh
- Advanced Materials and Nanobiotechnology Laboratory, Center for Targeted Drug Delivery, Chapman University, Irvine, CA 92618-1908, United States
| | - Sean Tang
- Advanced Materials and Nanobiotechnology Laboratory, Center for Targeted Drug Delivery, Chapman University, Irvine, CA 92618-1908, United States
| | - Sonja Jovanović
- Advanced Materials Department, Jožef Stefan Institute, Ljubljana, Slovenia; Laboratory of Physics, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - Victoria M Wu
- Advanced Materials and Nanobiotechnology Laboratory, Center for Targeted Drug Delivery, Chapman University, Irvine, CA 92618-1908, United States
| |
Collapse
|