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Seemann KM, Kovács A, Schmid TE, Ilicic K, Multhoff G, Dunin-Borkowski RE, Michelagnoli C, Cieplicka-Oryńczak N, Jana S, Colombi G, Jentschel M, Schneider CM, Kuhn B. Neutron-activated, plasmonically excitable Fe-Pt-Yb 2O 3 nanoparticles delivering anti-cancer radiation against human glioblastoma cells. iScience 2023; 26:107683. [PMID: 37680485 PMCID: PMC10481348 DOI: 10.1016/j.isci.2023.107683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 05/30/2023] [Accepted: 08/14/2023] [Indexed: 09/09/2023] Open
Abstract
Magnetic nanoparticles can be functionalized in many ways for biomedical applications. Here, we combine four advantageous features in a novel Fe-Pt-Yb2O3 core-shell nanoparticle. (a) The nanoparticles have a size of 10 nm allowing them to diffuse through neuronal tissue. (b) The particles are superparamagnetic after synthesis and ferromagnetic after annealing, enabling directional control by magnetic fields, enhance NMRI contrast, and hyperthermia treatment. (c) After neutron-activation of the shell, they carry low-energetic, short half-life β-radiation from 175Yb, 177Yb, and 177Lu. (d) Additionally, the particles can be optically visualized by plasmonic excitation and luminescence. To demonstrate the potential of the particles for cancer treatment, we exposed cultured human glioblastoma cells (LN-18) to non-activated and activated particles to confirm that the particles are internalized, and that the β-radiation of the radioisotopes incorporated in the neutron-activated shell of the nanoparticles kills more than 98% of the LN-18 cancer cells, promising for future anti-cancer applications.
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Affiliation(s)
- Klaus M. Seemann
- Peter Grünberg Institute PGI-6, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52428 Jülich, Germany
- Université de Lorraine, CNRS, IJL, 54000 Nancy, France
| | - András Kovács
- Ernst-Ruska-Centre for Microscopy and Spectroscopy with Electrons, Peter Grünberg Institute, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52428 Jülich, Germany
| | - Thomas E. Schmid
- Dpt. Radiation Oncology and TranslaTUM, Klinikum rechts der Isar, Technische Universität München, Ismaninger Straße 22, 81675 München, Germany
| | - Katarina Ilicic
- Dpt. Radiation Oncology and TranslaTUM, Klinikum rechts der Isar, Technische Universität München, Ismaninger Straße 22, 81675 München, Germany
| | - Gabriele Multhoff
- Dpt. Radiation Oncology and TranslaTUM, Klinikum rechts der Isar, Technische Universität München, Ismaninger Straße 22, 81675 München, Germany
| | - Rafal E. Dunin-Borkowski
- Ernst-Ruska-Centre for Microscopy and Spectroscopy with Electrons, Peter Grünberg Institute, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52428 Jülich, Germany
| | - Caterina Michelagnoli
- Institut Laue-Langevin, 71, Avenue des Martyrs, CS 20156, 38042 Grenoble Cedex 9, France
| | - Natalia Cieplicka-Oryńczak
- Institut Laue-Langevin, 71, Avenue des Martyrs, CS 20156, 38042 Grenoble Cedex 9, France
- Institute of Nuclear Physics Polish Academy of Sciences, 31342 Krakow, Poland
| | - Soumen Jana
- Optical Neuroimaging Unit, Okinawa Institute of Science and Technology Graduate University, Tancha, Onna-son, Okinawa 904-0495, Japan
| | - Giacomo Colombi
- Institut Laue-Langevin, 71, Avenue des Martyrs, CS 20156, 38042 Grenoble Cedex 9, France
| | - Michael Jentschel
- Institut Laue-Langevin, 71, Avenue des Martyrs, CS 20156, 38042 Grenoble Cedex 9, France
| | - Claus M. Schneider
- Peter Grünberg Institute PGI-6, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52428 Jülich, Germany
| | - Bernd Kuhn
- Optical Neuroimaging Unit, Okinawa Institute of Science and Technology Graduate University, Tancha, Onna-son, Okinawa 904-0495, Japan
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2
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Farkaš B, de Leeuw NH. A Perspective on Modelling Metallic Magnetic Nanoparticles in Biomedicine: From Monometals to Nanoalloys and Ligand-Protected Particles. MATERIALS (BASEL, SWITZERLAND) 2021; 14:3611. [PMID: 34203371 PMCID: PMC8269646 DOI: 10.3390/ma14133611] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/24/2022]
Abstract
The focus of this review is on the physical and magnetic properties that are related to the efficiency of monometallic magnetic nanoparticles used in biomedical applications, such as magnetic resonance imaging (MRI) or magnetic nanoparticle hyperthermia, and how to model these by theoretical methods, where the discussion is based on the example of cobalt nanoparticles. Different simulation systems (cluster, extended slab, and nanoparticle models) are critically appraised for their efficacy in the determination of reactivity, magnetic behaviour, and ligand-induced modifications of relevant properties. Simulations of the effects of nanoscale alloying with other metallic phases are also briefly reviewed.
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Affiliation(s)
- Barbara Farkaš
- School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK;
| | - Nora H. de Leeuw
- School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK;
- School of Chemistry, University of Leeds, Leeds LS2 9JT, UK
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3
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Giltinan J, Sridhar V, Bozuyuk U, Sheehan D, Sitti M. 3D Microprinting of Iron Platinum Nanoparticle-Based Magnetic Mobile Microrobots. ADVANCED INTELLIGENT SYSTEMS (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 3:2000204. [PMID: 33786452 PMCID: PMC7610460 DOI: 10.1002/aisy.202000204] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Indexed: 05/19/2023]
Abstract
Wireless magnetic microrobots are envisioned to revolutionize minimally invasive medicine. While many promising medical magnetic microrobots are proposed, the ones using hard magnetic materials are not mostly biocompatible, and the ones using biocompatible soft magnetic nanoparticles are magnetically very weak and, therefore, difficult to actuate. Thus, biocompatible hard magnetic micro/nanomaterials are essential toward easy-to-actuate and clinically viable 3D medical microrobots. To fill such crucial gap, this study proposes ferromagnetic and biocompatible iron platinum (FePt) nanoparticle-based 3D microprinting of microrobots using the two-photon polymerization technique. A modified one-pot synthesis method is presented for producing FePt nanoparticles in large volumes and 3D printing of helical microswimmers made from biocompatible trimethy- lolpropane ethoxylate triacrylate (PETA) polymer with embedded FePt nanoparticles. The 30 μm long helical magnetic microswimmers are able to swim at speeds of over five body lengths per second at 200 Hz, making them the fastest helical swimmer in the tens of micrometer length scale at the corresponding low- magnitude actuation fields of 5-10 mT. It is also experimentally in vitro verified that the synthesized FePt nanoparticles are biocompatible. Thus, such 3D-printed microrobots are biocompatible and easy to actuate toward creating clinically viable future medical microrobots.
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Affiliation(s)
- Joshua Giltinan
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Stuttgart 70569, Germany
| | - Varun Sridhar
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Stuttgart 70569, Germany
| | - Ugur Bozuyuk
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Stuttgart 70569, Germany
| | - Devin Sheehan
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Stuttgart 70569, Germany
| | - Metin Sitti
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Stuttgart 70569, Germany, School of Medicine and School of Engineering, Ko$ University, Istanbul 34450, Turkey, Institute for Biomedical Engineering, ETH Zurich, Zurich 8092, Switzerland
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4
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Preller T, Menzel D, Knickmeier S, Temel B, Garnweitner G. Herstellung von Nanokomposit‐Dünnschichten mit speziellen magnetischen Eigenschaften aus nanopartikulären Bausteinen. CHEM-ING-TECH 2020. [DOI: 10.1002/cite.202000087] [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)
- Tobias Preller
- Technische Universität Braunschweig Institut für Partikeltechnik Volkmaroder Straße 5 38104 Braunschweig Deutschland
| | - Dirk Menzel
- Technische Universität Braunschweig Institut für Physik der Kondensierten Materie Mendelssohnstraße 3 38106 Braunschweig Deutschland
| | - Saskia Knickmeier
- Technische Universität Braunschweig Institut für Partikeltechnik Volkmaroder Straße 5 38104 Braunschweig Deutschland
| | - Bilal Temel
- Technische Universität Braunschweig Institut für Partikeltechnik Volkmaroder Straße 5 38104 Braunschweig Deutschland
| | - Georg Garnweitner
- Technische Universität Braunschweig Institut für Partikeltechnik Volkmaroder Straße 5 38104 Braunschweig Deutschland
- Technische Universität Braunschweig Laboratory for Emerging Nanometrology (LENA) Langer Kamp 6A 38106 Braunschweig Deutschland
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5
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Liu TI, Lu TY, Chang SH, Shen MY, Chiu HC. Dual stimuli-guided lipid-based delivery system of cancer combination therapy. J Control Release 2020; 318:16-24. [DOI: 10.1016/j.jconrel.2019.12.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 10/25/2019] [Accepted: 12/03/2019] [Indexed: 12/18/2022]
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6
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Fonseca T, Antunes P, Belo M, Bastos F, Campos T, Geraldo J, Mendes A, Mendes B, Paixão L, Santana P, Seniwal B, Squair P, Yoriyaz H. MCMEG: Intercomparison exercise on prostate radiotherapy dose assessment. Radiat Phys Chem Oxf Engl 1993 2020. [DOI: 10.1016/j.radphyschem.2019.04.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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7
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Jeyaraj M, Gurunathan S, Qasim M, Kang MH, Kim JH. A Comprehensive Review on the Synthesis, Characterization, and Biomedical Application of Platinum Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1719. [PMID: 31810256 PMCID: PMC6956027 DOI: 10.3390/nano9121719] [Citation(s) in RCA: 147] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 11/22/2019] [Accepted: 11/25/2019] [Indexed: 12/15/2022]
Abstract
Platinum nanoparticles (PtNPs) are noteworthy scientific tools that are being explored in various biotechnological, nanomedicinal, and pharmacological fields. They are unique because of their large surface area and their numerous catalytic applications such as their use in automotive catalytic converters and as petrochemical cracking catalysts. PtNPs have been widely utilized not only in the industry, but also in medicine and diagnostics. PtNPs are extensively studied because of their antimicrobial, antioxidant, and anticancer properties. So far, only one review has been dedicated to the application of PtNPs to nanomedicine. However, no studies describe the synthesis, characterization, and biomedical application of PtNPs. Therefore, the aim of this review is to provide a comprehensive assessment of the current knowledge regarding the synthesis, including physical, chemical, and biological and toxicological effects of PtNPs on human health, in terms of both in vivo and in vitro experimental analysis. Special attention has been focused on the biological synthesis of PtNPs using various templates as reducing and stabilizing agents. Finally, we discuss the biomedical and other applications of PtNPs.
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Affiliation(s)
| | | | | | | | - Jin-Hoi Kim
- Department of Stem Cell and Regenerative Biotechnology and Humanized Pig Center (SRC), Konkuk Institute of Technology, Konkuk University, Seoul 05029, Korea; (M.J.); (S.G.); (M.Q.); (M.-H.K.)
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8
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Montoro Bustos AR, Pettibone JM, Murphy KE. Characterization of Nanoparticles: Advances. NANOPARTICLE DESIGN AND CHARACTERIZATION FOR CATALYTIC APPLICATIONS IN SUSTAINABLE CHEMISTRY 2019. [DOI: 10.1039/9781788016292-00037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Over the past two decades, the unique properties of engineered nanoparticles (NPs) have placed them at the centre of revolutionary advancements in many sectors of science, technology and commerce. Multi-technique and multi-disciplinary analytical approaches are required to identify, quantify, and characterize the chemical composition, size and size distribution, surface properties and the number and concentration of NPs. In this chapter, an overview of the recent advances in the characterization of NPs will be presented.
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Affiliation(s)
- A. R. Montoro Bustos
- National Institute of Standards and Technology 100 Bureau Drive Gaithersburg MD 20899-1070 USA
| | - J. M. Pettibone
- National Institute of Standards and Technology 100 Bureau Drive Gaithersburg MD 20899-1070 USA
| | - K. E. Murphy
- National Institute of Standards and Technology 100 Bureau Drive Gaithersburg MD 20899-1070 USA
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9
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Hobernik D, Bros M. DNA Vaccines-How Far From Clinical Use? Int J Mol Sci 2018; 19:ijms19113605. [PMID: 30445702 PMCID: PMC6274812 DOI: 10.3390/ijms19113605] [Citation(s) in RCA: 290] [Impact Index Per Article: 48.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/07/2018] [Accepted: 11/09/2018] [Indexed: 12/12/2022] Open
Abstract
Two decades ago successful transfection of antigen presenting cells (APC) in vivo was demonstrated which resulted in the induction of primary adaptive immune responses. Due to the good biocompatibility of plasmid DNA, their cost-efficient production and long shelf life, many researchers aimed to develop DNA vaccine-based immunotherapeutic strategies for treatment of infections and cancer, but also autoimmune diseases and allergies. This review aims to summarize our current knowledge on the course of action of DNA vaccines, and which factors are responsible for the poor immunogenicity in human so far. Important optimization steps that improve DNA transfection efficiency comprise the introduction of DNA-complexing nano-carriers aimed to prevent extracellular DNA degradation, enabling APC targeting, and enhanced endo/lysosomal escape of DNA. Attachment of virus-derived nuclear localization sequences facilitates nuclear entry of DNA. Improvements in DNA vaccine design include the use of APC-specific promotors for transcriptional targeting, the arrangement of multiple antigen sequences, the co-delivery of molecular adjuvants to prevent tolerance induction, and strategies to circumvent potential inhibitory effects of the vector backbone. Successful clinical use of DNA vaccines may require combined employment of all of these parameters, and combination treatment with additional drugs.
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Affiliation(s)
- Dominika Hobernik
- Department of Dermatology, University Medical Center, 55131 Mainz, Germany.
| | - Matthias Bros
- Department of Dermatology, University Medical Center, 55131 Mainz, Germany.
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10
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Preller T, Menzel D, Knickmeier S, Porsiel JC, Temel B, Garnweitner G. Non-Aqueous Sol-Gel Synthesis of FePt Nanoparticles in the Absence of In Situ Stabilizers. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E297. [PMID: 29751508 PMCID: PMC5977311 DOI: 10.3390/nano8050297] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 04/24/2018] [Accepted: 04/30/2018] [Indexed: 11/17/2022]
Abstract
The synthesis of FePt nanocrystals is typically performed in an organic solvent at rather high temperatures, demanding the addition of the in situ stabilizers oleic acid and oleylamine to produce monomodal particles with well-defined morphologies. Replacing frequently-used solvents with organic media bearing functional moieties, the use of the stabilizers can be completely circumvented. In addition, various morphologies and sizes of the nanocrystals can be achieved by the choice of organic solvent. The kinetics of particle growth and the change in the magnetic behavior of the superparamagnetic FePt nanocrystals during the synthesis with a set of different solvents, as well as the resulting morphologies and stoichiometries of the nanoparticles were determined by powder X-ray diffraction (PXRD), small-angle X-ray scattering (SAXS), transmission electron microscopy (TEM), inductively coupled plasma optical emission spectroscopy (ICP-OES)/mass spectrometry (ICP-MS), and superconducting quantum interference device (SQUID) measurements. Furthermore, annealing of the as-prepared FePt nanoparticles led to the ordered L1₀ phase and, thus, to hard magnetic materials with varying saturation magnetizations and magnetic coercivities.
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Affiliation(s)
- Tobias Preller
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Straße 5, 38104 Braunschweig, Germany.
| | - Dirk Menzel
- Institute of Condensed Matter Physics, Technische Universität Braunschweig, Mendelssohnstraße 3, 38106 Braunschweig, Germany.
| | - Saskia Knickmeier
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Straße 5, 38104 Braunschweig, Germany.
| | - Julian Cedric Porsiel
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Straße 5, 38104 Braunschweig, Germany.
| | - Bilal Temel
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Straße 5, 38104 Braunschweig, Germany.
| | - Georg Garnweitner
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Straße 5, 38104 Braunschweig, Germany.
- Laboratory for Emerging Nanometrology (LENA), Technische Universität Braunschweig, 38106 Braunschweig, Germany.
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11
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Prompt gamma neutron activation analysis (PGAA): recent developments and applications. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5483-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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First-principles calculations on Fe-Pt nanoclusters of various morphologies. Sci Rep 2017; 7:10579. [PMID: 28874775 PMCID: PMC5585362 DOI: 10.1038/s41598-017-11236-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 08/18/2017] [Indexed: 11/15/2022] Open
Abstract
Bimetallic FePt nanoparticles with L10 structure are attracting a lot of attention due to their high magnetocrystalline anisotropy and high coercivity what makes them potential material for storage of ultra-high density magnetic data. FePt nanoclusters are considered also as nanocatalysts for growth of carbon nanotubes of different chiralities. Using the DFT-LCAO CRYSTAL14 code, we have performed large-scale spin-polarized calculations on 19 different polyhedral structures of FePt nanoparticles in order to estimate which icosahedral or hcp-structured morphology is the energetically more preferable. Surface energy calculations of all aforementioned nanoparticles indicate that the global minimum corresponds to the nanocluster possessing the icosahedron “onion-like” structure and Fe43Pt104 morphology where the outer layer consists of Pt atoms. The presence of the Pt-enriched layer around FePt core explains high oxidation resistance and environmental stability, both observed experimentally.
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Huang WC, Lu IL, Chiang WH, Lin YW, Tsai YC, Chen HH, Chang CW, Chiang CS, Chiu HC. Tumortropic adipose-derived stem cells carrying smart nanotherapeutics for targeted delivery and dual-modality therapy of orthotopic glioblastoma. J Control Release 2017; 254:119-130. [DOI: 10.1016/j.jconrel.2017.03.035] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 12/30/2016] [Accepted: 03/19/2017] [Indexed: 01/07/2023]
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14
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Fang N, Ji YM, Li CY, Wu YY, Ma CG, Liu HL, Li MX. Synthesis and adsorption properties of [Cu(L)2(H2O)]H2[Cu(L)2(P2Mo5O23)]·4H2O/Fe3O4 nanocomposites. RSC Adv 2017. [DOI: 10.1039/c7ra02133j] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Multifunctional [Cu(L)2(H2O)]H2[Cu(L)2(P2Mo5O23)]·4H2O/Fe3O4 (HL = pyridine-2-carboxamide) nanocomposites were successfully synthesized by combining [Cu(L)2(H2O)]H2[Cu(L)2(P2Mo5O23)]·4H2O and Fe3O4 nanoparticles.
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Affiliation(s)
- Ning Fang
- Henan Key Laboratory of Polyoxometalates
- Instittute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
| | - Yu-Mei Ji
- Henan Key Laboratory of Polyoxometalates
- Instittute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
| | - Chun-Yan Li
- Henan Key Laboratory of Polyoxometalates
- Instittute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
| | - Yuan-Yuan Wu
- Henan Key Laboratory of Polyoxometalates
- Instittute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
| | - Chen-Guang Ma
- Henan Key Laboratory of Polyoxometalates
- Instittute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
| | - Hong-Ling Liu
- Henan Key Laboratory of Polyoxometalates
- Instittute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
| | - Ming-Xue Li
- Henan Key Laboratory of Polyoxometalates
- Instittute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
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15
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Lo WC, Cheng PW, Wang CT, Shueng PW, Hsieh CH, Chang YL, Liao LJ. The Effect of Radiotherapy on Ultrasound-Guided Fine Needle Aspiration Biopsy and the Ultrasound Characteristics of Neck Lymph Nodes in Oral Cancer Patients after Primary Treatment. PLoS One 2016; 11:e0149346. [PMID: 26954569 PMCID: PMC4783113 DOI: 10.1371/journal.pone.0149346] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 01/29/2016] [Indexed: 02/07/2023] Open
Abstract
Objectives To investigate the effect of radiotherapy (RT) on ultrasound-guided fine needle aspiration (USgFNA) and sonographic characteristics in the assessment of cervical lymph nodes (LNs) in oral squamous cell carcinoma (OSCC) patients after primary treatment. Materials and Methods 88 treated OSCC patients underwent 111 USgFNAs of the neck LNs after US evaluation. Among them, 48 USgFNAs were performed on 40 patients following RT and 63 USgFNAs on 48 patients without previous RT. The results of USgFNA and the US characteristics were compared between these two groups. Results USgFNA had a sensitivity of 88.0%, specificity of 91.4%, positive predictive value (PPV) of 88.0%, negative predictive value (NPV) of 91.4% and accuracy of 90.0% in patients without previous RT, and a sensitivity of 97.1%, specificity of 83.3%, PPV of 94.3%, NPV of 90.9% and accuracy of 93.5% in those with previous neck RT. The ranges of the short-axis and long-axis length were 13.3 ± 8.0 mm (mean ± SD) versus 17.8 ± 9.1 mm, and 18.6 ± 9.0 mm versus 24.4 ± 10.9 mm for recurrent LNs from patients with, versus without, previous RT (both ps < 0.05), respectively. 76.5% (26/34) of the recurrent nodes after RT and 48% (12/25) of the recurrent nodes without previous RT exhibited an irregular margin (p < 0.05). Additionally, irradiated recurrent LNs had a significantly decreased percentage of discernable calcification compared with non-irradiated recurrent nodes (48% versus 20.6%, p < 0.05). Conclusions RT had influence on sonographic characteristics but no influence on USgFNA in diagnosing recurrent LNs in treated OSCC patients.
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Affiliation(s)
- Wu-Chia Lo
- Department and Graduate Institute of Pathology, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Otolaryngology, Far Eastern Memorial Hospital, Taipei, Taiwan
- Oriental Institute of Technology, Taipei, Taiwan
| | - Po-Wen Cheng
- Department of Otolaryngology, Far Eastern Memorial Hospital, Taipei, Taiwan
- Oriental Institute of Technology, Taipei, Taiwan
| | - Chi-Te Wang
- Department of Otolaryngology, Far Eastern Memorial Hospital, Taipei, Taiwan
| | - Pei-Wei Shueng
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, Taipei, Taiwan
| | - Chen-Hsi Hsieh
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, Taipei, Taiwan
| | - Yih-Leong Chang
- Department and Graduate Institute of Pathology, National Taiwan University College of Medicine, Taipei, Taiwan
- * E-mail: (YLC); ; (LJL)
| | - Li-Jen Liao
- Department of Otolaryngology, Far Eastern Memorial Hospital, Taipei, Taiwan
- * E-mail: (YLC); ; (LJL)
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16
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Kalidasan V, Liu XL, Herng TS, Yang Y, Ding J. Bovine Serum Albumin-Conjugated Ferrimagnetic Iron Oxide Nanoparticles to Enhance the Biocompatibility and Magnetic Hyperthermia Performance. NANO-MICRO LETTERS 2016; 8:80-93. [PMID: 30464997 PMCID: PMC6223930 DOI: 10.1007/s40820-015-0065-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 09/14/2015] [Indexed: 05/09/2023]
Abstract
ABSTRACT Magnetic hyperthermia is a fast emerging, non-invasive cancer treatment method which is used synergistically with the existing cancer therapeutics. We have attempted to address the current challenges in clinical magnetic hyperthermia-improved biocompatibility and enhanced heating characteristics, through a single combinatorial approach. Both superparamagnetic iron oxide nanoparticles (SPIONs) of size 10 nm and ferrimagnetic iron oxide nanoparticles (FIONs) of size 30 nm were synthesized by thermal decomposition method for comparison studies. Two different surface modifying agents, viz, Cetyl Trimethyl Ammonium Bromide and 3-Aminopropyltrimethoxysilane, were used to conjugate Bovine Serum Albumin (BSA) over the iron oxide nanoparticles via two different methods-surface charge adsorption and covalent amide bonding, respectively. The preliminary haemolysis and cell viability experiments show that BSA conjugation mitigates the haemolytic effect of the iron oxide nanoparticles on erythrocytes and is non-cytotoxic to the healthy Baby Hamster Kidney cells. It was observed from the results that due to better colloidal stability, the SAR value of the BSA-iron oxide nanoparticles is higher than the iron oxide nanoparticles without BSA, irrespective of the size of the iron oxide nanoparticles and method of conjugation. The BSA-FIONs seem to show improved biocompatibility, as the haemolytic index is less than 2 % and cell viability is up to 120 %, when normalized with the control. The SAR value of BSA-FIONs is 2300 W g-1 when compared to 1700 W g-1 of FIONs without BSA conjugation. Thus, we report here that BSA conjugation over FIONs (with a high saturation magnetization of 87 emu g-1) provide a single combinatorial approach to improve the biocompatibility and enhance the SAR value for magnetic hyperthermia, thus addressing both the current challenges of the same.
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Affiliation(s)
- Viveka Kalidasan
- Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore, 117574 Singapore
| | - Xiao Li Liu
- Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore, 117574 Singapore
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi’an, 710069 Shaanxi People’s Republic of China
| | - Tun Seng Herng
- Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore, 117574 Singapore
| | - Yong Yang
- Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore, 117574 Singapore
| | - Jun Ding
- Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore, 117574 Singapore
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Liuzzi R, Savino F, D’Avino V, Pugliese M, Cella L. Evaluation of LiF:Mg,Ti (TLD-100) for Intraoperative Electron Radiation Therapy Quality Assurance. PLoS One 2015; 10:e0139287. [PMID: 26427065 PMCID: PMC4591127 DOI: 10.1371/journal.pone.0139287] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 09/09/2015] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Purpose of the present work was to investigate thermoluminescent dosimeters (TLDs) response to intraoperative electron radiation therapy (IOERT) beams. In an IOERT treatment, a large single radiation dose is delivered with a high dose-per-pulse electron beam (2-12 cGy/pulse) during surgery. To verify and to record the delivered dose, in vivo dosimetry is a mandatory procedure for quality assurance. The TLDs feature many advantages such as a small detector size and close tissue equivalence that make them attractive for IOERT as in vivo dosimeters. METHODS LiF:Mg,Ti dosimeters (TLD-100) were irradiated with different IOERT electron beam energies (5, 7 and 9 MeV) and with a 6 MV conventional photon beam. For each energy, the TLDs were irradiated in the dose range of 0-10 Gy in step of 2 Gy. Regression analysis was performed to establish the response variation of thermoluminescent signals with dose and energy. RESULTS The TLD-100 dose-response curves were obtained. In the dose range of 0-10 Gy, the calibration curve was confirmed to be linear for the conventional photon beam. In the same dose region, the quadratic model performs better than the linear model when high dose-per-pulse electron beams were used (F test; p<0.05). CONCLUSIONS This study demonstrates that the TLD dose response, for doses ≤10 Gy, has a parabolic behavior in high dose-per-pulse electron beams. TLD-100 can be useful detectors for IOERT patient dosimetry if a proper calibration is provided.
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Affiliation(s)
- Raffaele Liuzzi
- Institute of Biostructure and Bioimaging, National Research Council (CNR), Naples, Italy
| | - Federica Savino
- Department of Physics, Federico II University, Naples, Italy
| | - Vittoria D’Avino
- Institute of Biostructure and Bioimaging, National Research Council (CNR), Naples, Italy
| | | | - Laura Cella
- Institute of Biostructure and Bioimaging, National Research Council (CNR), Naples, Italy
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18
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Bergs JWJ, Wacker MG, Hehlgans S, Piiper A, Multhoff G, Rödel C, Rödel F. The role of recent nanotechnology in enhancing the efficacy of radiation therapy. Biochim Biophys Acta Rev Cancer 2015; 1856:130-43. [PMID: 26142869 DOI: 10.1016/j.bbcan.2015.06.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 05/29/2015] [Accepted: 06/30/2015] [Indexed: 10/23/2022]
Abstract
Radiation therapy is one of the most commonly used non-surgical interventions in tumor treatment and is often combined with other modalities to enhance its efficacy. Despite recent advances in radiation oncology, treatment responses, however, vary considerably between individual patients. A variety of approaches have been developed to enhance radiation response or to counteract resistance to ionizing radiation. Among them, a relatively novel class of radiation sensitizers comprises nanoparticles (NPs) which are highly efficient and selective systems in the nanometer range. NPs can either encapsulate radiation sensitizing agents, thereby protecting them from degradation, or sensitize cancer cells to ionizing radiation via their physicochemical properties, e.g. high Z number. Moreover, they can be chemically modified for active molecular targeting and the imaging of tumors. In this review we will focus on recent developments in nanotechnology, different classes and modifications of NPs and their radiation sensitizing properties.
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Affiliation(s)
- Judith W J Bergs
- Department of Radiotherapy and Oncology, Goethe-University, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany; German Cancer Research Center (DKFZ), Heidelberg, Germany; German Cancer Consortium (DKTK) partner site: Frankfurt, Germany
| | - Matthias G Wacker
- Fraunhofer-Institute for Molecular Biology and Applied Ecology, Department of Pharmaceutical Technology, Goethe University, Frankfurt am Main, Germany
| | - Stephanie Hehlgans
- Department of Radiotherapy and Oncology, Goethe-University, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany
| | - Albrecht Piiper
- Department of Medicine I, Goethe-University, Frankfurt am Main, Germany
| | - Gabriele Multhoff
- German Cancer Research Center (DKFZ), Heidelberg, Germany; German Cancer Consortium (DKTK) partner site: Frankfurt, Germany; Department of Radiation Oncology, Technische Universität München, Ismaninger Str. 22, D-81675 Munich, Germany; Clinical Cooperation Group (CCG) "Innate Immunity in Tumor Biology", Helmholtz Zentrum München, German Research Center for Environmental Health Munich, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
| | - Claus Rödel
- Department of Radiotherapy and Oncology, Goethe-University, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany; German Cancer Research Center (DKFZ), Heidelberg, Germany; German Cancer Consortium (DKTK) partner site: Frankfurt, Germany
| | - Franz Rödel
- Department of Radiotherapy and Oncology, Goethe-University, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany.
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Jochym PT, Łażewski J, Sternik M, Piekarz P. Dynamics and stability of icosahedral Fe–Pt nanoparticles. Phys Chem Chem Phys 2015; 17:28096-102. [DOI: 10.1039/c5cp00277j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An ab initio theoretical study on icosahedral Fe–Pt clusters – one of the most interesting nanoalloys with high application potential.
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Affiliation(s)
- Paweł T. Jochym
- Department of Computational Materials Science
- Institute of Nuclear Physics PAN
- Cracow
- Poland
| | - Jan Łażewski
- Department of Computational Materials Science
- Institute of Nuclear Physics PAN
- Cracow
- Poland
| | - Małgorzata Sternik
- Department of Computational Materials Science
- Institute of Nuclear Physics PAN
- Cracow
- Poland
| | - Przemysław Piekarz
- Department of Computational Materials Science
- Institute of Nuclear Physics PAN
- Cracow
- Poland
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