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Tomchuk O, Avdeev M, Aksenov V, Shulenina A, Ivankov O, Ryukhtin V, Vékás L, Bulavin L. Temperature-dependent fractal structure of particle clusters in aqueous ferrofluids by small-angle scattering. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.126090] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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2
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Arango-Restrepo A, Barragán D, Rubi JM. Self-assembling outside equilibrium: emergence of structures mediated by dissipation. Phys Chem Chem Phys 2019; 21:17475-17493. [DOI: 10.1039/c9cp01088b] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Self-assembly under non-equilibrium conditions may give rise to the formation of structures not available at equilibrium.
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Affiliation(s)
- A. Arango-Restrepo
- Departament de Física de la Matéria Condensada
- Facultat de Física
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - D. Barragán
- Escuela de Química
- Facultad de Ciencias
- Universidad Nacional de Colombia
- Medellín
- Colombia
| | - J. M. Rubi
- Departament de Física de la Matéria Condensada
- Facultat de Física
- Universitat de Barcelona
- 08028 Barcelona
- Spain
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3
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Li Y, Ye D, Li M, Ma M, Gu N. Adaptive Materials Based on Iron Oxide Nanoparticles for Bone Regeneration. Chemphyschem 2018. [DOI: 10.1002/cphc.201701294] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yan Li
- Southeast University; State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory of Biomaterials and Devices, School of Biological Science and Medical Engineering, Sipailou 2; 210096 Nanjing China
| | - Dewen Ye
- Southeast University; State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory of Biomaterials and Devices, School of Biological Science and Medical Engineering, Sipailou 2; 210096 Nanjing China
| | - Mingxi Li
- Southeast University; State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory of Biomaterials and Devices, School of Biological Science and Medical Engineering, Sipailou 2; 210096 Nanjing China
| | - Ming Ma
- Southeast University; State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory of Biomaterials and Devices, School of Biological Science and Medical Engineering, Sipailou 2; 210096 Nanjing China
| | - Ning Gu
- Southeast University; State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory of Biomaterials and Devices, School of Biological Science and Medical Engineering, Sipailou 2; 210096 Nanjing China
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4
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Piccinetti CC, Montis C, Bonini M, Laurà R, Guerrera MC, Radaelli G, Vianello F, Santinelli V, Maradonna F, Nozzi V, Miccoli A, Olivotto I. Transfer of silica-coated magnetic (Fe3O4) nanoparticles through food: a molecular and morphological study in zebrafish. Zebrafish 2015; 11:567-79. [PMID: 25372245 DOI: 10.1089/zeb.2014.1037] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The increasing use of magnetic iron oxide nanoparticles (NPs) in biomedical applications has prompted extensive investigation of their interactions with biological systems also through animal models. A variety of toxic effects have been detected in NP-exposed fish and fish embryos, including oxidative stress and associated changes, such as lipid oxidation, apoptosis, and gene expression alterations. The main exposure route for fish is through food and the food web. This study was devised to investigate the effects of silica-coated NP administration through food in zebrafish (ZF, Danio rerio). Silica-coated magnetic NPs were administered to ZF through feed (zooplankton) from day 1 to 15 posthatching (ph). Larvae were examined 6 and 15 days ph and adults 3 and 6 months ph. A multidisciplinary approach, including morphometric examination; light, transmission electron, and confocal microscopy; inductively coupled plasma emission spectrometry; and real-time polymerase chain reaction, was applied to detect NP accumulation, structural and ultrastructural damage, and activation of detoxification processes in larvae and adults. Our findings document that the silica-coated NPs: (1) do not induce toxicity in ZF, (2) are excreted through feces, and (3) do not activate detoxification processes or promote tissue/cell injury.
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Affiliation(s)
- Chiara Carla Piccinetti
- 1 Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche , Ancona, Italy
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Banchelli M, Nappini S, Montis C, Bonini M, Canton P, Berti D, Baglioni P. Magnetic nanoparticle clusters as actuators of ssDNA release. Phys Chem Chem Phys 2014; 16:10023-31. [PMID: 24487734 DOI: 10.1039/c3cp55470h] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
One of the major areas of research in nanomedicine is the design of drug delivery systems with remotely controllable release of the drug. Despite the enormous progress in the field, this aspect still poses a challenge, especially in terms of selectivity and possible harmful interactions with biological components other than the target. We report an innovative approach for the controlled release of DNA, based on clusters of core-shell magnetic nanoparticles. The primary nanoparticles are functionalized with a single-stranded oligonucleotide, whose pairing with a half-complementary strand in solution induces clusterization. The application of a low frequency (6 KHz) alternating magnetic field induces DNA melting with the release of the single strand that induces clusterization. The possibility of steering and localizing the magnetic nanoparticles, and magnetically actuating the DNA release discloses new perspectives in the field of nucleic-acid based therapy.
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Affiliation(s)
- M Banchelli
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, 50019 Florence, Italy.
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6
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Avdeev MV. Particle interaction in polydisperse magnetic fluids: Experimental aspects of small-angle neutron scattering applications. J Mol Liq 2014. [DOI: 10.1016/j.molliq.2013.05.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Ghosh S, Puri IK. Soft Polymer Magnetic Nanocomposites: Microstructure Patterning by Magnetophoretic Transport and Self-Assembly. SOFT MATTER 2013; 9:2024-2029. [PMID: 25383088 PMCID: PMC4224291 DOI: 10.1039/c2sm27420e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
A method to produce and pattern magnetic microstructure in a soft-polymer matrix is demonstrated. An externally applied magnetic field is used to influence the dynamics of magnetophoretic transport and dipolar self-assembly of magnetic nanoparticle clusters in the liquid precursor of poly-dimethylsiloxane (PDMS). Magnetic nanoparticles agglomerate by an interplay of van der Waals forces and dipolar interactions to form anisotropic clusters. These clusters are concentrated on a substrate by magnetophoresis, wherein they self-organize by dipolar interactions to form microscopic filaments. The polymer is cured in the presence of the magnetic field to preserve the microstructure shape. The externally applied magnetic field and its gradient are the two main control variables of interest when considering magnetic control during nanoparticle self-assembly. Their influence on microstructure geometry is investigated through correlations with the height of a characteristic self-assembled filament, fraction of the substrate area covered by the microstructure and its shape anisotropy. These relations enable a priori design.
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Affiliation(s)
- Suvojit Ghosh
- Department of Engineering Science and Mechanics, Virginia Tech, Blacksburg, VA, 24061. Fax: +1-540-231-4574; Tel:+1-540-231-3243
| | - Ishwar K. Puri
- Department of Engineering Science and Mechanics, Virginia Tech, Blacksburg, VA, 24061. Fax: +1-540-231-4574; Tel:+1-540-231-3243
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8
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Pyanzina E, Kantorovich S, Cerdà JJ, Ivanov A, Holm C. How to analyse the structure factor in ferrofluids with strong magnetic interactions: a combined analytic and simulation approach. Mol Phys 2010. [DOI: 10.1080/00268970902893149] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Hong Y, Honda RJ, Myung NV, Walker SL. Transport of iron-based nanoparticles: role of magnetic properties. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2009; 43:8834-8839. [PMID: 19943654 DOI: 10.1021/es9015525] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The transport of magnetic nanoparticles in aquatic environments was studied using maghemite (gamma-Fe(2)O(3)) and gamma-Fe(2)O(3) based (Fe(x)Ni(1-x))(y)O(z) nanoparticles as a function of pH and particle iron content that induced a different magnetic property. Transport studies were conducted in packed bed columns (1 mM KCl, pH 6 and 9) and stability studies were done by dynamic light scattering and sedimentation measurements. Results showed that the stability and transport of these magnetic nanoparticles were influenced by a combination of electrostatic and magnetic interactions. Transport results showed that the less magnetic nanoparticles (possessing higher nickel content) eluted to a greater extent than the more magnetic particles at both pH 6 and 9. The stability in water at both pH 6 and 9 also increased, as nickel content in particles increased suggesting that magnetic interactions enhance aggregation. The nanoparticles eluted to a greater extent at pH 9, at which they were more negatively charged, than at pH 6. Complementary experiments were conducted with alpha-Fe(2)O(3), a nonmagnetic, highly negatively charged nanoparticle which was transported more than the other magnetic particles. The majority of particles were retained at the column inlet (1-2 cm) for all transport experiments, with the greatest amount of retention being that of the magnetic nanoparticles (gamma-Fe(2)O(3)), indicating that magnetically induced aggregation and subsequent straining resulted in greater retention.
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Affiliation(s)
- Yongsuk Hong
- Department of Chemical and Environmental Engineering, University of California, Riverside, Riverside, California 92521, USA
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10
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Khomutov GB, Koksharov YA. Effects of organic ligands, electrostatic and magnetic interactions in formation of colloidal and interfacial inorganic nanostructures. Adv Colloid Interface Sci 2006; 122:119-47. [PMID: 16887093 DOI: 10.1016/j.cis.2006.06.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This paper discusses effects of organic ligands, electrostatic and magnetic interactions involved in morphological control of chemically synthesized inorganic nanostructures including colloid and planar systems. The special attention was concentrated on noble metal (gold and palladium) nanoparticles and nanostructures formed at the gas-liquid interface. The analysis of experimental data showed that electrostatic and ligand-related interactions influence very strongly on the metal nanostructure morphology. The hydrophobicity of ligand, charge and binding affinity to inorganic phase are important factors influencing the morphology of inorganic nanostructures formed in a layer at the gas/liquid interface by the interfacial synthesis method. The important point of this method is the quasi two-dimensional character of reaction area and possibilities to realize ultimately thin and anisotropic dynamic monomolecular reaction system with two-dimensional diffusion and interactions of precursors, intermediates and ligands resulting in planar growth and organization of inorganic nanoparticles and nanostructures in the plain of Langmuir monolayer. The morphology of resulting inorganic nanostructures can be controlled efficiently by variations of growth conditions via changes in state and composition of interfacial planar reaction media with the same precursor, and by variations of composition of adjacent bulk phases. The extreme anisotropy and heterogeneity of two-dimensional interfacial reaction system allows creating conditions when growing inorganic particles floating on the aqueous phase surface interact selectively with hydrophobic water-insoluble ligands in interfacial monolayer or with hydrophilic bulk-phase ligands, or at the same time with ligands of different nature present in monolayer and in aqueous phase. The spatial anisotropy of interfacial reaction system and non-homogeneity of ligand binding to inorganic phase gives possibilities for growth of integrated anisotropic nanostructures with unique morphologies, in particularly those characterized by very high surface/volume ratio, high effective perimeter, and labyrinth-like structure. In a case of magnetic nanoparticles dispersed in colloids specific magnetic dipolar interactions can result in formation of chains, rings and more complex nanoparticulate structures or separated highly anisotropic nanoparticles. Theoretical considerations indicate to the importance of system dimensionality in relation to the energy balance which determines specific features of structure organization in planar charged metallic and magnetic nanostructures. For example, a requirement of Coulomb energy minimum, the possibility of free electron redistribution and strengthened attractive interactions between particles in metallic nanostructures can explain formation of very branchy systems with extremely high "effective perimeter". The obtained experimental and literature data show that system dimensionality, organic ligand nature along with electrostatic and magnetic interactions are most important factors of morphological control of chemically synthesized inorganic nanomaterials. The understanding and appropriate exploitation of these factors can be useful for further developments of efficient nanofabrication techniques based on colloidal and interfacial synthetic methods.
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Affiliation(s)
- G B Khomutov
- Faculty of Physics, Moscow State University, 119992 Moscow, Russia.
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Krouskop PE, Garrison J, Gedeon PC, Madura JD. A novel hybrid simulation for study of multiscale phenomena. MOLECULAR SIMULATION 2006. [DOI: 10.1080/08927020600779368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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