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Avugadda SK, Wickramasinghe S, Niculaes D, Ju M, Lak A, Silvestri N, Nitti S, Roy I, Samia ACS, Pellegrino T. Uncovering the Magnetic Particle Imaging and Magnetic Resonance Imaging Features of Iron Oxide Nanocube Clusters. Nanomaterials (Basel) 2020; 11:nano11010062. [PMID: 33383768 PMCID: PMC7824301 DOI: 10.3390/nano11010062] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 12/23/2020] [Accepted: 12/24/2020] [Indexed: 02/07/2023]
Abstract
Multifunctional imaging nanoprobes continue to garner strong interest for their great potential in the detection and monitoring of cancer. In this study, we investigate a series of spatially arranged iron oxide nanocube-based clusters (i.e., chain-like dimer/trimer, centrosymmetric clusters, and enzymatically cleavable two-dimensional clusters) as magnetic particle imaging and magnetic resonance imaging probes. Our findings demonstrate that the short nanocube chain assemblies exhibit remarkable magnetic particle imaging signal enhancement with respect to the individually dispersed or the centrosymmetric cluster analogues. This result can be attributed to the beneficial uniaxial magnetic dipolar coupling occurring in the chain-like nanocube assembly. Moreover, we could effectively synthesize enzymatically cleavable two-dimensional nanocube clusters, which upon exposure to a lytic enzyme, exhibit a progressive increase in magnetic particle imaging signal at well-defined incubation time points. The increase in magnetic particle imaging signal can be used to trace the disassembly of the large planar clusters into smaller nanocube chains by enzymatic polymer degradation. These studies demonstrate that chain-like assemblies of iron oxide nanocubes offer the best spatial arrangement to improve magnetic particle imaging signals. In addition, the nanocube clusters synthesized in this study also show remarkable transverse magnetic resonance imaging relaxation signals. These nanoprobes, previously showcased for their outstanding heat performance in magnetic hyperthermia applications, have great potential as dual imaging probes and could be employed to improve the tumor thermo-therapeutic efficacy, while offering a readable magnetic signal for image mapping of material disassemblies at tumor sites.
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Affiliation(s)
- Sahitya Kumar Avugadda
- Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy; (S.K.A.); (D.N.); (A.L.); (N.S.); (S.N.)
| | - Sameera Wickramasinghe
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA; (S.W.); (M.J.)
| | - Dina Niculaes
- Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy; (S.K.A.); (D.N.); (A.L.); (N.S.); (S.N.)
| | - Minseon Ju
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA; (S.W.); (M.J.)
| | - Aidin Lak
- Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy; (S.K.A.); (D.N.); (A.L.); (N.S.); (S.N.)
| | - Niccolò Silvestri
- Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy; (S.K.A.); (D.N.); (A.L.); (N.S.); (S.N.)
| | - Simone Nitti
- Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy; (S.K.A.); (D.N.); (A.L.); (N.S.); (S.N.)
| | - Ipsita Roy
- Department of Materials Science and Engineering, University of Sheffield, Sheffield S10 2 TN, UK;
| | - Anna Cristina S. Samia
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA; (S.W.); (M.J.)
- Correspondence: (A.C.S.S.); (T.P.)
| | - Teresa Pellegrino
- Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy; (S.K.A.); (D.N.); (A.L.); (N.S.); (S.N.)
- Correspondence: (A.C.S.S.); (T.P.)
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Salvetti A, Gambino G, Rossi L, De Pasquale D, Pucci C, Linsalata S, Degl'Innocenti A, Nitti S, Prato M, Ippolito C, Ciofani G. Stem cell and tissue regeneration analysis in low-dose irradiated planarians treated with cerium oxide nanoparticles. Materials Science and Engineering: C 2020; 115:111113. [DOI: 10.1016/j.msec.2020.111113] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 05/17/2020] [Accepted: 05/20/2020] [Indexed: 12/21/2022]
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Quarta A, Amorín M, Aldegunde MJ, Blasi L, Ragusa A, Nitti S, Pugliese G, Gigli G, Granja JR, Pellegrino T. Novel synthesis of platinum complexes and their intracellular delivery to tumor cells by means of magnetic nanoparticles. Nanoscale 2019; 11:23482-23497. [PMID: 31808496 DOI: 10.1039/c9nr07015j] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Platinum-based drugs are popular in clinics as chemotherapeutic agents to treat solid tumors. However, severe side effects such as nephro- and neurotoxicity impose strict dosage limitations that can lead to the development of drug resistance and tumor relapse. To overcome these issues Pt(iv) prodrugs and platinum delivery systems might represent the next generation of platinum-based drugs. In this study four novel Pt(ii) complexes (namely, PEG-Glu-Pt-EDA, PEG-Glu-Pt-DACH, PEG-Mal-Pt-EDA and PEG-Mal-Pt-DACH) were synthesized and a general strategy to covalently bind them to iron oxide nanoparticles was developed. The intracellular uptake and cell distribution studies of Pt-tethered magnetic nanoparticles on breast and ovarian cancer cell line models indicate that binding of the Pt complexes to the nanoparticles facilitates, for all the complexes, cellular internalization. Moreover, the magnetic nanoparticles (MNPs), as shown in a magnetofection experiment, enhance the uptake of MNP-Pt conjugates if a magnet is placed beneath the culture dish of tumor cells. As shown by a Pt release experiment, intranuclear platinum quantification and TEM analysis on cell sections, the presence of a pH-sensitive dicarboxylic group coordinating the Pt complex, triggers platinum dissociation from the NP surface. In addition, the triazole moiety facilitates endosomal swelling and the leakage of platinum from the endosomes with intranuclear localization of platinum release by the NPs. Finally, as assessed by MTT, caspase, calcein/ethidium bromide live/dead assays, among the four NP-Pt conjugates, the NP-Glu-Pt-EDA complex having a glutamate ring and ethylenediamine as a chelating amine group of the platinum showed higher cytotoxicity than the other three MNP-platinum conjugates.
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Affiliation(s)
- Alessandra Quarta
- CNR NANOTEC - Institute of Nanotechnology, c/o Campus Ecotekne, via Monteroni, 73100, Lecce, Italy.
| | - Manuel Amorín
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - María José Aldegunde
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Laura Blasi
- CNR, Institute for Microelectronics and Microsystems, Via Monteroni, Lecce, 73100, Italy
| | - Andrea Ragusa
- CNR NANOTEC - Institute of Nanotechnology, c/o Campus Ecotekne, via Monteroni, 73100, Lecce, Italy. and Dipartimento di Scienze e Tecnologie Biologiche e Ambientali, Università del Salento, Campus Ecotekne, via Monteroni, 73100, Lecce, Italy
| | - Simone Nitti
- Istituto Italiano di Tecnologia, via Morego 30, 16163, Genova, Italy.
| | | | - Giuseppe Gigli
- CNR NANOTEC - Institute of Nanotechnology, c/o Campus Ecotekne, via Monteroni, 73100, Lecce, Italy. and Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, Campus Ecotekne, via Monteroni, 73100, Lecce, Italy
| | - Juan R Granja
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Teresa Pellegrino
- Istituto Italiano di Tecnologia, via Morego 30, 16163, Genova, Italy.
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Avugadda SK, Materia ME, Nigmatullin R, Cabrera D, Marotta R, Cabada TF, Marcello E, Nitti S, Artés-Ibañez EJ, Basnett P, Wilhelm C, Teran FJ, Roy I, Pellegrino T. Esterase-Cleavable 2D Assemblies of Magnetic Iron Oxide Nanocubes: Exploiting Enzymatic Polymer Disassembling To Improve Magnetic Hyperthermia Heat Losses. Chem Mater 2019; 31:5450-5463. [PMID: 31631940 PMCID: PMC6795213 DOI: 10.1021/acs.chemmater.9b00728] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 06/25/2019] [Indexed: 05/24/2023]
Abstract
Here, we report a nanoplatform based on iron oxide nanocubes (IONCs) coated with a bioresorbable polymer that, upon exposure to lytic enzymes, can be disassembled increasing the heat performances in comparison with the initial clusters. We have developed two-dimensional (2D) clusters by exploiting benchmark IONCs as heat mediators for magnetic hyperthermia and a polyhydroxyalkanoate (PHA) copolymer, a biodegradable polymer produced by bacteria that can be digested by intracellular esterase enzymes. The comparison of magnetic heat performance of the 2D assemblies with 3D centrosymmetrical assemblies or single IONCs emphasizes the benefit of the 2D assembly. Moreover, the heat losses of 2D assemblies dispersed in water are better than the 3D assemblies but worse than for single nanocubes. On the other hand, when the 2D magnetic beads (2D-MNBs) are incubated with the esterase enzyme at a physiological temperature, their magnetic heat performances began to progressively increase. After 2 h of incubation, specific absorption rate values of the 2D assembly double the ones of individually coated nanocubes. Such an increase can be mainly correlated to the splitting of the 2D-MNBs into smaller size clusters with a chain-like configuration containing few nanocubes. Moreover, 2D-MNBs exhibited nonvariable heat performances even after intentionally inducing their aggregation. Magnetophoresis measurements indicate a comparable response of 3D and 2D clusters to external magnets (0.3 T) that is by far faster than that of single nanocubes. This feature is crucial for a physical accumulation of magnetic materials in the presence of magnetic field gradients. This system is the first example of a nanoplatform that, upon exposure to lytic enzymes, such as those present in a tumor environment, can be disassembled from the initial 2D-MNB organization to chain-like assemblies with clear improvement of the heat magnetic losses resulting in better heat dissipation performances. The potential application of 2D nanoassemblies based on the cleavable PHAs for preserving their magnetic losses inside cells will benefit hyperthermia therapies mediated by magnetic nanoparticles under alternating magnetic fields.
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Affiliation(s)
- Sahitya Kumar Avugadda
- Istituto Italiano
di Tecnologia, via Morego 30, 16163 Genoa, Italy
- Dipartimento di Chimica
e Chimica Industriale, Università
di Genova, Via Dodecaneso,
31, 16146 Genova, Italy
| | | | - Rinat Nigmatullin
- School of Life Sciences, College of Liberal
Arts and Sciences, University of Westminster, New Cavendish Street, London W1W 6UW, U.K.
| | - David Cabrera
- iMdea Nanociencia, Campus Universitario de Cantoblanco, C/ Faraday 9, 28049 Madrid, Spain
| | - Roberto Marotta
- Istituto Italiano
di Tecnologia, via Morego 30, 16163 Genoa, Italy
| | | | - Elena Marcello
- School of Life Sciences, College of Liberal
Arts and Sciences, University of Westminster, New Cavendish Street, London W1W 6UW, U.K.
| | - Simone Nitti
- Istituto Italiano
di Tecnologia, via Morego 30, 16163 Genoa, Italy
| | - Emilio J. Artés-Ibañez
- iMdea Nanociencia, Campus Universitario de Cantoblanco, C/ Faraday 9, 28049 Madrid, Spain
| | - Pooja Basnett
- School of Life Sciences, College of Liberal
Arts and Sciences, University of Westminster, New Cavendish Street, London W1W 6UW, U.K.
| | - Claire Wilhelm
- Laboratoire Matière et Systèmes Complexes
(MSC) UMR 7057 CNRS and Université Paris Diderot, 75205 Paris Cedex
05, France
| | - Francisco J. Teran
- iMdea Nanociencia, Campus Universitario de Cantoblanco, C/ Faraday 9, 28049 Madrid, Spain
- Unidad Asociada al Centro Nacional de Biotecnología
(CSIC), Nanobiotecnología (iMdea
Nanociencia), 28049 Madrid, Spain
| | - Ipsita Roy
- School of Life Sciences, College of Liberal
Arts and Sciences, University of Westminster, New Cavendish Street, London W1W 6UW, U.K.
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Kakwere H, Materia ME, Curcio A, Prato M, Sathya A, Nitti S, Pellegrino T. Dually responsive gold-iron oxide heterodimers: merging stimuli-responsive surface properties with intrinsic inorganic material features. Nanoscale 2018; 10:3930-3944. [PMID: 29423465 DOI: 10.1039/c7nr06726g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We demonstrate a versatile approach for the preparation of dually responsive smart inorganic heterostructures (HSs) with the potential for exploitation in nanomedicine. We utilize Au-FexOy dimers as templates for generating smart inorganic HSs with a pH-responsive coating and a thermo-responsive coating attached to iron oxide and gold nanoparticles (NPs), respectively. First, a thiol-modified thermo-responsive (PNIPAAM-co-PEGA) polymer could be selectively attached to the gold domain by ligand exchange. The sequential attachment of a catechol-modified initiator to the iron oxide surface enables the in situ polymerization of a pH-responsive (PDMAEA) polymer. As hereby shown, the presence of the two distinct polymer domains on each NP subdomain enables each side of the HS to be loaded with different agents. Indeed, by a gel electrophoresis experiment we demonstrate the loading of siRNA on the pH-responsive polymer and the loading of Nile Blue dye, used as a drug model molecule, on the thermo-responsive polymer. The smart HSs exhibited good biocompatibility and downregulated GFP production when loaded with anti-GFP siRNA molecules. In addition, an investigation of the magnetic relaxivity times revealed that the high R2 relaxivity values of the HSs suggest their potential as contrast agents in magnetic resonance imaging (MRI) applications.
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Affiliation(s)
- Hamilton Kakwere
- Istituto Italiano di Tecnologia, via Morego 30, 16145, Genoa, Italy.
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Guardia P, Nitti S, Materia ME, Pugliese G, Yaacoub N, Greneche JM, Lefevre C, Manna L, Pellegrino T. Gold-iron oxide dimers for magnetic hyperthermia: the key role of chloride ions in the synthesis to boost the heating efficiency. J Mater Chem B 2017; 5:4587-4594. [PMID: 29308203 PMCID: PMC5708522 DOI: 10.1039/c7tb00968b] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 04/28/2017] [Indexed: 12/13/2022]
Abstract
With the aim of producing Au-Fe x O y dimers with outstanding heating performances under magnetic hyperthermia conditions applicable to human patients, here we report two synthesis routes, a two-pot and a one-pot method. The addition of chloride ions and the absence of 1,2-hexadecanediol (HDDOL), a commonly used chemical in this synthesis, are the key factors that enable us to produce dimers at low temperature with crystalline iron oxide domains in the size range between 18-39 nm that is ideal for magnetic hyperthermia. In the case of two-pot synthesis, in which no chloride ions are initially present in the reaction pot, dimers are obtained only at 300 °C. In order to lower the reaction temperature to 200 °C and to tune the size of the iron oxide domain, the addition of chloride ions becomes the crucial parameter. In the one-pot method, the presence of chloride ions from the start of the synthesis (as counter ions of the gold salt precursor) enables a prompt formation of dimers directly at 200 °C. In this case, the reaction time is the main parameter used to tune the iron oxide size. A record value of specific absorption rates (SARs) up to 1300 W gFe-1 at 330 kHz and 24 kA m-1 was measured for dimers with an iron oxide domain of 24 nm in size.
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Affiliation(s)
- P Guardia
- Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy .
- Centro de Tecnologia Quimica de Cataluña , Carrer de Marcel·lí Domingo s/n , 43007 Tarragona , Spain
| | - S Nitti
- Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy .
| | - M E Materia
- Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy .
| | - G Pugliese
- Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy .
| | - N Yaacoub
- Institut des Molécules et Matériaux du Mans IMMM UMR CNRS 6283 , Université du Maine, Avenue Olivier Messiaen , F-72085 Le Mans Cedex , France
| | - J-M Greneche
- Institut des Molécules et Matériaux du Mans IMMM UMR CNRS 6283 , Université du Maine, Avenue Olivier Messiaen , F-72085 Le Mans Cedex , France
| | - C Lefevre
- Institut de Physique et de Chimie des Matériaux de Strasbourg 23 , rue du Loess , BP 43 67034 Strasbourg Cedex 2 , France
| | - L Manna
- Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy .
| | - T Pellegrino
- Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy .
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Marino A, Tonda-Turo C, De Pasquale D, Ruini F, Genchi G, Nitti S, Cappello V, Gemmi M, Mattoli V, Ciardelli G, Ciofani G. Gelatin/nanoceria nanocomposite fibers as antioxidant scaffolds for neuronal regeneration. Biochim Biophys Acta Gen Subj 2016; 1861:386-395. [PMID: 27864151 DOI: 10.1016/j.bbagen.2016.11.022] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 11/04/2016] [Accepted: 11/14/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND The design of efficient nerve conduits able to sustain the axonal outgrowth and its guidance towards appropriate targets is of paramount importance in nerve tissue engineering. METHODS In this work, we propose the preparation of highly aligned nanocomposite fibers of gelatin/cerium oxide nanoparticles (nanoceria), prepared by electrospinning. Nanoceria are powerful self-regenerative antioxidant nanomaterials, that behave as strong reactive oxygen species scavengers, and among various beneficial effects, they have been proven to inhibit the cell senescence and to promote the neurite sprouting. RESULTS After a detailed characterization of the developed substrates, they have been tested on neuron-like SH-SY5Y cells, demonstrating strong antioxidant properties and beneficial multi-cue effects in terms of neurite development and alignment. CONCLUSIONS Obtained findings suggest efficiency of the proposed substrates in providing combined topographical stimuli and antioxidant effects to cultured cells. GENERAL SIGNIFICANCE Proposed nanocomposite scaffolds represent a promising approach for nerve tissue engineering and regenerative medicine.
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Affiliation(s)
- Attilio Marino
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy.
| | - Chiara Tonda-Turo
- Nanobiotechnology Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Daniele De Pasquale
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Francesca Ruini
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Giada Genchi
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Simone Nitti
- Nanobiotechnology Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Valentina Cappello
- Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127 Pisa, Italy
| | - Mauro Gemmi
- Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127 Pisa, Italy
| | - Virgilio Mattoli
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Gianluca Ciardelli
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Gianni Ciofani
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy; Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
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Lak A, Niculaes D, Anyfantis GC, Bertoni G, Barthel MJ, Marras S, Cassani M, Nitti S, Athanassiou A, Giannini C, Pellegrino T. Facile transformation of FeO/Fe 3O 4 core-shell nanocubes to Fe 3O 4 via magnetic stimulation. Sci Rep 2016; 6:33295. [PMID: 27665698 PMCID: PMC5036086 DOI: 10.1038/srep33295] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 08/24/2016] [Indexed: 01/01/2023] Open
Abstract
Here, we propose the use of magnetic hyperthermia as a means to trigger the oxidation of Fe1-xO/Fe3-δO4 core-shell nanocubes to Fe3-δO4 phase. As a first relevant consequence, the specific absorption rate (SAR) of the initial core-shell nanocubes doubles after exposure to 25 cycles of alternating magnetic field stimulation. The improved SAR value was attributed to a gradual transformation of the Fe1-xO core to Fe3-δO4, as evidenced by structural analysis including high resolution electron microscopy and Rietveld analysis of X-ray diffraction patterns. The magnetically oxidized nanocubes, having large and coherent Fe3-δO4 domains, reveal high saturation magnetization and behave superparamagnetically at room temperature. In comparison, the treatment of the same starting core-shell nanocubes by commonly used thermal annealing process renders a transformation to γ-Fe2O3. In contrast to other thermal annealing processes, the method here presented has the advantage of promoting the oxidation at a macroscopic temperature below 37 °C. Using this soft oxidation process, we demonstrate that biotin-functionalized core-shell nanocubes can undergo a mild self-oxidation transformation without losing their functional molecular binding activity.
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Affiliation(s)
- Aidin Lak
- Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Dina Niculaes
- Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | | | | | | | - Sergio Marras
- Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Marco Cassani
- Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Simone Nitti
- Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | | | - Cinzia Giannini
- Institute of Crystallography, National Research Council, via Amendola 122/O, Bari 70126 Italy
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Salvetti A, Rossi L, Iacopetti P, Li X, Nitti S, Pellegrino T, Mattoli V, Golberg D, Ciofani G. In vivo biocompatibility of boron nitride nanotubes: effects on stem cell biology and tissue regeneration in planarians. Nanomedicine (Lond) 2015; 10:1911-22. [PMID: 25835434 DOI: 10.2217/nnm.15.46] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
AIM Boron nitride nanotubes (BNNTs) represent an extremely interesting class of nanomaterials, and recent findings have suggested a number of applications in the biomedical field. Anyhow, extensive biocompatibility investigations are mandatory before any further advancement toward preclinical testing. MATERIALS & METHODS Here, we report on the effects of multiwalled BNNTs in freshwater planarians, one of the best-characterized in vivo models for developmental biology and regeneration research. RESULTS & DISCUSSION Obtained results indicate that BNNTs are biocompatible in the investigated model, since they do not induce oxidative DNA damage and apoptosis, and do not show adverse effects on planarian stem cell biology and on de novo tissue regeneration. In summary, collected findings represent another important step toward BNNT realistic applications in nanomedicine.
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Affiliation(s)
- Alessandra Salvetti
- Department of Clinical & Experimental Medicine, University of Pisa, Via Alessandro Volta 4, 56126 Pisa, Italy
| | - Leonardo Rossi
- Department of Clinical & Experimental Medicine, University of Pisa, Via Alessandro Volta 4, 56126 Pisa, Italy
| | - Paola Iacopetti
- Department of Clinical & Experimental Medicine, University of Pisa, Via Alessandro Volta 4, 56126 Pisa, Italy
| | - Xia Li
- National Institute for Materials Science (NIMS), International Center for Materials Nanoarchitectonics (MANA), Namiki 1-1, 305-0044 Tsukuba (Ibaraki), Japan
| | - Simone Nitti
- Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | | | - Virgilio Mattoli
- Istituto Italiano di Tecnologia, Center for Micro-BioRobotics @SSSA, Viale Rinaldo Piaggio 34, 56025 Pontedera (Pisa), Italy
| | - Dmitri Golberg
- National Institute for Materials Science (NIMS), International Center for Materials Nanoarchitectonics (MANA), Namiki 1-1, 305-0044 Tsukuba (Ibaraki), Japan
| | - Gianni Ciofani
- Istituto Italiano di Tecnologia, Center for Micro-BioRobotics @SSSA, Viale Rinaldo Piaggio 34, 56025 Pontedera (Pisa), Italy
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Bartczak D, Muskens OL, Nitti S, Millar TM, Kanaras AG. Nanoparticles for inhibition of in vitro tumour angiogenesis: synergistic actions of ligand function and laser irradiation. Biomater Sci 2015. [PMID: 26222592 DOI: 10.1039/c5bm00053j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Careful design of nanoparticles plays a crucial role in their biomedical applications. It not only defines the stability of nanoparticles in a biological medium but also programs their biological functionality and specific interactions with cells. Here, an inorganic nanoparticulate system engineered to have a dual role as anti-angiogenic and hyperthermic agent is presented. The inorganic rod-shaped core is designed to strongly absorb near-infrared laser irradiation through the surface plasmon resonance and convert it into localized heat, while a peptide coating acts as an anti-angiogenic drug, altogether inhibiting vascular growth. The synergistic dual action provides an improved inhibition of the in vitro tumour angiogenesis, offering new possibilities for the development of nano-engineered anti-angiogenic drugs for therapies.
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Affiliation(s)
- Dorota Bartczak
- Physics and Astronomy, Faculty of Applied and Physical Sciences, University of Southampton, Southampton, SO17 1BJ, UK.
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Quarta A, Bernareggi D, Benigni F, Luison E, Nano G, Nitti S, Cesta MC, Di Ciccio L, Canevari S, Pellegrino T, Figini M. Targeting FR-expressing cells in ovarian cancer with Fab-functionalized nanoparticles: a full study to provide the proof of principle from in vitro to in vivo. Nanoscale 2015; 7:2336-2351. [PMID: 25504081 DOI: 10.1039/c4nr04426f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Efficient targeting in tumor therapies is still an open issue: systemic biodistribution and poor specific accumulation of drugs weaken efficacy of treatments. Engineered nanoparticles are expected to bring benefits by allowing specific delivery of drug to the tumor or acting themselves as localized therapeutic agents. In this study we have targeted epithelial ovarian cancer with inorganic nanoparticles conjugated to a human antibody fragment against the folate receptor over-expressed on cancer cells. The conjugation approach is generally applicable. Indeed several types of nanoparticles (either magnetic or fluorescent) were engineered with the fragment, and their biological activity was preserved as demonstrated by biochemical methods in vitro. In vivo studies with mice bearing orthotopic and subcutaneous tumors were performed. Elemental and histological analyses showed that the conjugated magnetic nanoparticles accumulated specifically and were retained at tumor sites longer than the non-conjugated nanoparticles.
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Affiliation(s)
- Alessandra Quarta
- Nanoscience Institute of CNR, National Nanotechnology Laboratory, via Arnesano, 73100, Lecce, Italy
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12
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Fernandes R, Smyth NR, Muskens OL, Nitti S, Heuer-Jungemann A, Ardern-Jones MR, Kanaras AG. Interactions of skin with gold nanoparticles of different surface charge, shape, and functionality. Small 2015; 11:713-21. [PMID: 25288531 DOI: 10.1002/smll.201401913] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 08/27/2014] [Indexed: 05/07/2023]
Abstract
The interactions between skin and colloidal gold nanoparticles of different physicochemical characteristics are investigated. By systematically varying the charge, shape, and functionality of gold nanoparticles, the nanoparticle penetration through the different skin layers is assessed. The penetration is evaluated both qualitatively and quantitatively using a variety of complementary techniques. Inductively coupled plasma optical emission spectrometry (ICP-OES) is used to quantify the total number of particles which penetrate the skin structure. Transmission electron microscopy (TEM) and two photon photoluminescence microscopy (TPPL) on skin cross sections provide a direct visualization of nanoparticle migration within the different skin substructures. These studies reveal that gold nanoparticles functionalized with cell penetrating peptides (CPPs) TAT and R7 are found in the skin in larger quantities than polyethylene glycol-functionalized nanoparticles, and are able to enter deep into the skin structure. The systematic studies presented in this work may be of strong interest for developments in transdermal administration of drugs and therapy.
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Affiliation(s)
- Rute Fernandes
- Institute of Life Sciences, Physics and Astronomy, Faculty of Applied and Physical Sciences, University of Southampton, Southampton, SO171BJ, UK
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13
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Ferreira TH, Marino A, Rocca A, Liakos I, Nitti S, Athanassiou A, Mattoli V, Mazzolai B, de Sousa EMB, Ciofani G. Folate-grafted boron nitride nanotubes: possible exploitation in cancer therapy. Int J Pharm 2015; 481:56-63. [PMID: 25637832 DOI: 10.1016/j.ijpharm.2015.01.048] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 01/22/2015] [Accepted: 01/27/2015] [Indexed: 12/20/2022]
Abstract
Boron nitride nanotubes (BNNTs) have generated considerable interest among the scientific community because of their unique physical and chemical properties. They present good chemical inertness, high thermal stability, and optimal resistance to oxidation, that make them ideal candidates for biomedical applications, in particular as nanovectors for drug, gene and protein delivery into the cells. In this study, BNNTs were prepared through a synthesis based on a chemical vapor deposition (CVD) method, and thereafter chemically functionalized with folic acid. The obtained nanostructures have been characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The characterization showed efficiently functionalized BNNTs of length of about 1 μm. Furthermore, confocal laser microscopy demonstrated that our nanotubes can be fluorescently-traced under appropriate excitation. Thanks to this property, it has been possible to investigate their internalization by HeLa cells through confocal microscopy, demonstrating that the BNNT up-take clearly increases after the functionalization with folate, a result confirmed by inductively coupled plasma (ICP) assessment of boron content inside the treated cell cultures.
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Affiliation(s)
- Tiago H Ferreira
- SENAN - Centro de Desenvolvimento da Tecnologia Nuclear - CDTN/CNEN, Av. Presidente Antônio Carlos 6627 - Campus da UFMG, Belo Horizonte, MG CEP 30270-901, Brazil
| | - Attilio Marino
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, Pontedera, Pisa 56025, Italy; The BioRobotics Institute, Scuola Superiore Sant'Anna, Viale Rinaldo Piaggio 34, Pontedera, Pisa 56025, Italy
| | - Antonella Rocca
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, Pontedera, Pisa 56025, Italy; The BioRobotics Institute, Scuola Superiore Sant'Anna, Viale Rinaldo Piaggio 34, Pontedera, Pisa 56025, Italy
| | - Ioannis Liakos
- Nanophysics Department, Istituto Italiano di Tecnologia, Via Morego 30, Genova 16163, Italy
| | - Simone Nitti
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, Genova 16163, Italy
| | - Athanassia Athanassiou
- Nanophysics Department, Istituto Italiano di Tecnologia, Via Morego 30, Genova 16163, Italy
| | - Virgilio Mattoli
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, Pontedera, Pisa 56025, Italy
| | - Barbara Mazzolai
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, Pontedera, Pisa 56025, Italy
| | - Edesia M B de Sousa
- SENAN - Centro de Desenvolvimento da Tecnologia Nuclear - CDTN/CNEN, Av. Presidente Antônio Carlos 6627 - Campus da UFMG, Belo Horizonte, MG CEP 30270-901, Brazil.
| | - Gianni Ciofani
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, Pontedera, Pisa 56025, Italy.
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Knaster J, Bernardi D, García A, Groeschel F, Heidinger R, Ida M, Ibarra A, Micchiche G, Nitti S, Sugimoto M, Wakai E. Assessment of the beam–target interaction of IFMIF: A state of the art. Fusion Engineering and Design 2014. [DOI: 10.1016/j.fusengdes.2014.01.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Monticelli O, Putti M, Gardella L, Cavallo D, Basso A, Prato M, Nitti S. New Stereocomplex PLA-Based Fibers: Effect of POSS on Polymer Functionalization and Properties. Macromolecules 2014. [DOI: 10.1021/ma500528a] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Orietta Monticelli
- Dipartimento
di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso,
31, 16146 Genova, Italy
| | - Matilde Putti
- Dipartimento
di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso,
31, 16146 Genova, Italy
| | - Lorenza Gardella
- Dipartimento
di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso,
31, 16146 Genova, Italy
| | - Dario Cavallo
- Dipartimento
di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso,
31, 16146 Genova, Italy
| | - Andrea Basso
- Dipartimento
di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso,
31, 16146 Genova, Italy
| | - Mirko Prato
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Simone Nitti
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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Guardia P, Riedinger A, Nitti S, Pugliese G, Marras S, Genovese A, Materia ME, Lefevre C, Manna L, Pellegrino T. One pot synthesis of monodisperse water soluble iron oxide nanocrystals with high values of the specific absorption rate. J Mater Chem B 2014; 2:4426-4434. [DOI: 10.1039/c4tb00061g] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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17
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Pisanello F, De Paolis R, Lorenzo D, Guardia P, Nitti S, Monti G, Fragouli D, Athanassiou A, Tarricone L, Manna L, De Vittorio M, Martiradonna L. GHz properties of magnetophoretically aligned iron-oxide nanoparticle doped polymers. ACS Appl Mater Interfaces 2013; 5:2908-2914. [PMID: 23537058 DOI: 10.1021/am400239b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We show that assembled domains of magnetic iron-oxide nanoparticles (IONPs) are effective at increasing the dielectric permittivity of polydimethylsiloxane (PDMS) nanocomposites in the GHz frequency range. The assembly has been achieved by means of magnetophoretic transport and its efficacy, as well as the electromagnetic properties of the nanocomposite, has been found to depend on IONPs diameter. Remarkably, the dielectric permittivity increase has been obtained by keeping dielectric and magnetic losses very low, making us envision the suitability of nanocomposites based on aligned IONPs as substrates for radiofrequency applications.
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Affiliation(s)
- Ferruccio Pisanello
- Center for Biomolecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia, 73010 Arnesano (LE), Italy.
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Ciofani G, Danti S, Nitti S, Mazzolai B, Mattoli V, Giorgi M. Biocompatibility of boron nitride nanotubes: An up-date of in vivo toxicological investigation. Int J Pharm 2013; 444:85-8. [DOI: 10.1016/j.ijpharm.2013.01.037] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 01/13/2013] [Accepted: 01/16/2013] [Indexed: 12/27/2022]
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Abstract
We present the exocytosis profile of two types of peptide-coated nanoparticles, which have similar charge and size but different functionality. While one kind of particles appears to progressively exocytose, the other one has a more complex profile, suggesting that some of the particles are re-uptaken by the cells. Both types of particles retain their colloidal stability after exocytosis.
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Affiliation(s)
- Dorota Bartczak
- Institute for Life Sciences and Physics and Astronomy, Faculty of Physical and Applied Sciences, Highfield, University of Southampton, Southampton, UKSO17 1BJ
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Bartczak D, Muskens OL, Nitti S, Sanchez-Elsner T, Millar TM, Kanaras AG. Interactions of human endothelial cells with gold nanoparticles of different morphologies. Small 2012; 8:122-30. [PMID: 22102541 DOI: 10.1002/smll.201101422] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2011] [Revised: 08/25/2011] [Indexed: 05/02/2023]
Abstract
The interactions between noncancerous, primary endothelial cells and gold nanoparticles with different morphologies but the same ligand capping are investigated. The endothelial cells are incubated with gold nanospheres, nanorods, hollow gold spheres, and core/shell silica/gold nanocrystals, which are coated with monocarboxy (1-mercaptoundec-11-yl) hexaethylene glycol (OEG). Cell viability studies show that all types of gold particles are noncytotoxic. The number of particles taken up by the cells is estimated using inductively coupled plasma (ICP), and are found to differ depending on particle morphology. The above results are discussed with respect to heating efficiency. Using experimental data reported earlier and theoretical model calculations which take into account the physical properties and distribution of particles in the cellular microenvironment, it is found that collective heating effects of several cells loaded with nanoparticles must be included to explain the observed viability of the endothelial cells.
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Affiliation(s)
- Dorota Bartczak
- School of Physics and Astronomy, University of Southampton, Southampton, SO171BJ, UK
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