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Rodilla BL, Arché-Núñez A, Ruiz-Gómez S, Domínguez-Bajo A, Fernández-González C, Guillén-Colomer C, González-Mayorga A, Rodríguez-Díez N, Camarero J, Miranda R, López-Dolado E, Ocón P, Serrano MC, Pérez L, González MT. Flexible metallic core-shell nanostructured electrodes for neural interfacing. Sci Rep 2024; 14:3729. [PMID: 38355737 PMCID: PMC10866994 DOI: 10.1038/s41598-024-53719-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 02/04/2024] [Indexed: 02/16/2024] Open
Abstract
Electrodes with nanostructured surface have emerged as promising low-impedance neural interfaces that can avoid the charge-injection restrictions typically associated to microelectrodes. In this work, we propose a novel approximation, based on a two-step template assisted electrodeposition technique, to obtain flexible nanostructured electrodes coated with core-shell Ni-Au vertical nanowires. These nanowires benefit from biocompatibility of the Au shell exposed to the environment and the mechanical properties of Ni that allow for nanowires longer and more homogeneous in length than their only-Au counterparts. The nanostructured electrodes show impedance values, measured by electrochemical impedance spectroscopy (EIS), at least 9 times lower than those of flat reference electrodes. This ratio is in good accordance with the increased effective surface area determined both from SEM images and cyclic voltammetry measurements, evidencing that only Au is exposed to the medium. The observed EIS profile evolution of Ni-Au electrodes over 7 days were very close to those of Au electrodes and differently from Ni ones. Finally, the morphology, viability and neuronal differentiation of rat embryonic cortical cells cultured on Ni-Au NW electrodes were found to be similar to those on control (glass) substrates and Au NW electrodes, accompanied by a lower glial cell differentiation. This positive in-vitro neural cell behavior encourages further investigation to explore the tissue responses that the implantation of these nanostructured electrodes might elicit in healthy (damaged) neural tissues in vivo, with special emphasis on eventual tissue encapsulation.
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Affiliation(s)
- Beatriz L Rodilla
- Fundación IMDEA Nanociencia, Calle Faraday 9, 28049, Madrid, Spain
- Departamento de Física de Materiales, Universidad Complutense de Madrid, Plaza de las Ciencias S/N, 28040, Madrid, Spain
| | - Ana Arché-Núñez
- Fundación IMDEA Nanociencia, Calle Faraday 9, 28049, Madrid, Spain
| | - Sandra Ruiz-Gómez
- Max Planck Institute for Chemical Physics of Solids, Dresden, Germany
| | - Ana Domínguez-Bajo
- Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, Calle Sor Juana Inés de la Cruz 3, 28049, Madrid, Spain
- Animal Molecular and Cellular Biology group (AMCB), Louvain Institute of Biomolecular Science and Technology (LIBST), Université catholique de Louvain, Place Croix du Sud 5, 1348 , Louvain la Neuve, Belgium
| | | | | | | | | | - Julio Camarero
- Fundación IMDEA Nanociencia, Calle Faraday 9, 28049, Madrid, Spain
- Department de Física de la Materia Condensada and Instituto "Nicolás Cabrera", Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Rodolfo Miranda
- Fundación IMDEA Nanociencia, Calle Faraday 9, 28049, Madrid, Spain
- Department de Física de la Materia Condensada and Instituto "Nicolás Cabrera", Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Elisa López-Dolado
- Hospital Nacional de Parapléjicos, SESCAM, Finca la Peraleda S/N, 45071, Toledo, Spain
- Design and development of Biomaterials for Neural Regeneration, HNP-SESCAM, Associated Unit With CSIC Through ICMM, Finca La Peraleda S/N, 45071, Toledo, Spain
| | - Pilar Ocón
- Departamento de Química Física Aplicada, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - María C Serrano
- Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, Calle Sor Juana Inés de la Cruz 3, 28049, Madrid, Spain
| | - Lucas Pérez
- Fundación IMDEA Nanociencia, Calle Faraday 9, 28049, Madrid, Spain
- Departamento de Física de Materiales, Universidad Complutense de Madrid, Plaza de las Ciencias S/N, 28040, Madrid, Spain
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2
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Abstract
Ni nanotubes (NTs) were produced by the template method in the pores of ion-track membranes and then were successfully functionalized with gold nanoparticles (Ni@Au NTs) using electroless wet-chemical deposition with the aim to demonstrate their high catalytic activity. The fabricated NTs were characterized using a variety of techniques in order to determine their morphology and dimensions, crystalline structure, and magnetic properties. The morphology of Au coating depended on the concentration of gold chloride aqueous solution used for Au deposition. The catalytic activity was evaluated by a model reaction of the reduction of 4-nitrophenol by borohydride ions in the presence of Ni and Ni@Au NTs. The reaction was monitored spectrophotometrically in real time by detecting the decrease in the absorption peaks. It was found that gold coating with needle-like structure formed at a higher Au-ions concentration had the strongest catalytic effect, while bare Ni NTs had little effect. The presence of a magnetic core allowed the extraction of the catalyst with the help of a magnetic field for reusable applications.
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Yurdabak Karaca G, Kaya HK, Kuralay F, Uygun Oksuz A. Chitosan functionalized gold-nickel bimetallic magnetic nanomachines for motion-based deoxyribonucleic acid recognition. Int J Biol Macromol 2021; 193:370-377. [PMID: 34678384 DOI: 10.1016/j.ijbiomac.2021.10.057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/28/2021] [Accepted: 10/08/2021] [Indexed: 02/06/2023]
Abstract
In this present study, the preparation of chitosan functionalized gold‑nickel wire nanomachines (nanomotors) (CS@Au-Ni NMs) for motion-based double-stranded deoxyribonucleic acid (dsDNA) recognition and detection was described. Synthesis of the nanomachines was accomplished by Ni layer formation using direct current (DC) magnetron sputtering over electrochemically deposited Au wires. Subsequently, biopolymer chitosan was dispersed onto this bimetallic layer by drop casting which could provide a novel and functional surface for leading bio-applications. CS@Au-Ni NMs were characterized via scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and zeta potential analysis methods for the elucidation of structural morphology, elemental composition and electrophoretic mobility. On account of presenting the application of these magnetic nanomachines, they were interacted with different concentrations of dsDNA and the changes in their velocities were investigated. The speed CS@Au-Ni NMs were measured as 19 μm/s under 22 mT magnetic field. These magnetically guided nanomachines demonstrated a practical and good sensing ability by recognizing dsDNA between 0.01 mg/L and 10 mg/L. Electrochemical characterization was also performed to identify the surface characteristics. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) experiments presented the interaction of the NMs with dsDNA by indicating the convenient recognition.
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Affiliation(s)
| | - Hilmi Kaan Kaya
- Department of Chemistry, Hacettepe University, Ankara 06800, Turkey
| | - Filiz Kuralay
- Department of Chemistry, Hacettepe University, Ankara 06800, Turkey.
| | - Aysegul Uygun Oksuz
- Department of Chemistry, Suleyman Demirel University, Isparta 32260, Turkey; Department of Bioengineering, Suleyman Demirel University, Isparta 32260, Turkey.
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4
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Magnetic Properties of a Ni Nanonet Grown in Superfluid Helium under Laser Irradiation. MAGNETOCHEMISTRY 2021. [DOI: 10.3390/magnetochemistry7100139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A nanonet consisting of ultrathin Ni nanowires (diameter <4 nm) and Ni nanoballs (diameter <20 nm) has been grown through laser ablation of a Ni target in superfluid helium. At a low Ni concentration, the nanonet consists mainly of nanowires and manifests a rectangular magnetic hysteresis loop, while an increase in the Ni concentration results in an increase in both the concentration and diameter of the nanoballs. A decrease in hysteresis loop rectangularity is observed as the concentration of the nanoball increases. We show that the composition of the system can be determined from the changes in the magnetic hysteresis loop and the temperature dependence of magnetization. The significance of the work consists of the observation of evolution of magnetic properties of the ferromagnetic nanonet, while its composition varies from nanowires to a combined nanowires–nanoballs system.
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5
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Synthesis of Ni@Au core-shell magnetic nanotubes for bioapplication and SERS detection. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127077] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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6
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Demir E. A review on nanotoxicity and nanogenotoxicity of different shapes of nanomaterials. J Appl Toxicol 2020; 41:118-147. [PMID: 33111384 DOI: 10.1002/jat.4061] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 08/15/2020] [Accepted: 08/18/2020] [Indexed: 12/16/2022]
Abstract
Nanomaterials (NMs) generally display fascinating physical and chemical properties that are not always present in bulk materials; therefore, any modification to their size, shape, or coating tends to cause significant changes in their chemical/physical and biological characteristics. The dramatic increase in efforts to use NMs renders the risk assessment of their toxicity highly crucial due to the possible health perils of this relatively uncharted territory. The different sizes and shapes of the nanoparticles are known to have an impact on organisms and an important place in clinical applications. The shape of nanoparticles, namely, whether they are rods, wires, or spheres, is a particularly critical parameter to affect cell uptake and site-specific drug delivery, representing a significant factor in determining the potency and magnitude of the effect. This review, therefore, intends to offer a picture of research into the toxicity of different shapes (nanorods, nanowires, and nanospheres) of NMs to in vitro and in vivo models, presenting an in-depth analysis of health risks associated with exposure to such nanostructures and benefits achieved by using certain model organisms in genotoxicity testing. Nanotoxicity experiments use various models and tests, such as cell cultures, cores, shells, and coating materials. This review article also attempts to raise awareness about practical applications of NMs in different shapes in biology, to evaluate their potential genotoxicity, and to suggest approaches to explain underlying mechanisms of their toxicity and genotoxicity depending on nanoparticle shape.
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Affiliation(s)
- Eşref Demir
- Vocational School of Health Services, Department of Medical Services and Techniques, Medical Laboratory Techniques Programme, Antalya Bilim University, Dosemealti, Antalya, Turkey
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7
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Abstract
Magnetic nanostructures and nanomaterials play essential roles in modern bio medicine and technology. Proper surface functionalization of nanoparticles (NPs) allows the selective bonding thus application of magnetic forces to a vast range of cellular structures and biomolecules. However, the spherical geometry of NPs poises a series of limitations in various potential applications. Mostly, typical spherical core shell structure consists of magnetic and non-magnetic layers have little tunability in terms of magnetic responses, and their single surface functionality also limits chemical activity and selectivity. In comparison to spherical NPs, nanowires (NWs) possess more degrees of freedom in achieving magnetic and surface chemical tenability. In addition to adjustment of magnetic anisotropy and inter-layer interactions, another important feature of NWs is their ability to combine different components along their length, which can result in diverse bio-magnetic applications. Magnetic NWs have become the candidate material for biomedical applications owing to their high magnetization, cheapness and cost effective synthesis. With large magnetic moment, anisotropy, biocompatibility and low toxicity, magnetic NWs have been recently used in living cell manipulation, magnetic cell separation and magnetic hyperthermia. In this review, the basic concepts of magnetic characteristics of nanoscale objects and the influences of aspect ratio, composition and diameter on magnetic properties of NWs are addressed. Some underpinning physical principles of magnetic hyperthermia (MH), magnetic resonance imaging (MRI) and magnetic separation (MS) have been discussed. Finally, recent studies on magnetic NWs for the applications in MH, MRI and MS were discussed in detail.
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Affiliation(s)
- Aiman Mukhtar
- The State Key Laboratory of Refractories and Metallurgy, Hubei Province Key Laboratory of Systems Science in Metallurgical Process, International Research Institute for Steel Technology, Wuhan University of Science and Technology, Wuhan, People's Republic of China
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8
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Nana ABA, Marimuthu T, Kondiah PPD, Choonara YE, Du Toit LC, Pillay V. Multifunctional Magnetic Nanowires: Design, Fabrication, and Future Prospects as Cancer Therapeutics. Cancers (Basel) 2019; 11:E1956. [PMID: 31817598 PMCID: PMC6966456 DOI: 10.3390/cancers11121956] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 11/24/2019] [Accepted: 11/25/2019] [Indexed: 11/27/2022] Open
Abstract
Traditional cancer therapeutics are limited by factors such as multi-drug resistance and a plethora of adverse effect. These limitations need to be overcome for the progression of cancer treatment. In order to overcome these limitations, multifunctional nanosystems have recently been introduced into the market. The employment of multifunctional nanosystems provide for the enhancement of treatment efficacy and therapeutic effect as well as a decrease in drug toxicity. However, in addition to these effects, magnetic nanowires bring specific advantages over traditional nanoparticles in multifunctional systems in terms of the formulation and application into a therapeutic system. The most significant of which is its larger surface area, larger net magnetic moment compared to nanoparticles, and interaction under a magnetic field. This results in magnetic nanowires producing a greater drug delivery and therapeutic platform with specific regard to magnetic drug targeting, magnetic hyperthermia, and magnetic actuation. This, in turn, increases the potential of magnetic nanowires for decreasing adverse effects and improving patient therapeutic outcomes. This review focuses on the design, fabrication, and future potential of multifunctional magnetic nanowire systems with the emphasis on improving patient chemotherapeutic outcomes.
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Affiliation(s)
| | | | | | | | | | - Viness Pillay
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa; (A.B.A.N.); (T.M.); (P.P.D.K.); (Y.E.C.); (L.C.D.T.)
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9
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Kozlovskiy A, Zdorovets M, Kadyrzhanov K, Korolkov I, Rusakov V, Nikolaevich L, Fesenko O, Budnyk O, Yakimchuk D, Shumskaya A, Kaniukov E. FeCo nanotubes: possible tool for targeted delivery of drugs and proteins. APPLIED NANOSCIENCE 2018. [DOI: 10.1007/s13204-018-0889-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Kouser L, Paudyal B, Kaur A, Stenbeck G, Jones LA, Abozaid SM, Stover CM, Flahaut E, Sim RB, Kishore U. Human Properdin Opsonizes Nanoparticles and Triggers a Potent Pro-inflammatory Response by Macrophages without Involving Complement Activation. Front Immunol 2018; 9:131. [PMID: 29483907 PMCID: PMC5816341 DOI: 10.3389/fimmu.2018.00131] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 01/16/2018] [Indexed: 12/28/2022] Open
Abstract
Development of nanoparticles as tissue-specific drug delivery platforms can be considerably influenced by the complement system because of their inherent pro-inflammatory and tumorigenic consequences. The complement activation pathways, and its recognition subcomponents, can modulate clearance of the nanoparticles and subsequent inflammatory response and thus alter the intended translational applications. Here, we report, for the first time, that human properdin, an upregulator of the complement alternative pathway, can opsonize functionalized carbon nanotubes (CNTs) via its thrombospondin type I repeat (TSR) 4 and 5. Binding of properdin and TSR4+5 is likely to involve charge pattern/polarity recognition of the CNT surface since both carboxymethyl cellulose-coated carbon nanotubes (CMC-CNT) and oxidized (Ox-CNT) bound these proteins well. Properdin enhanced the uptake of CMC-CNTs by a macrophage cell line, THP-1, mounting a robust pro-inflammatory immune response, as revealed by qRT-PCR, multiplex cytokine array, and NF-κB nuclear translocation analyses. Properdin can be locally synthesized by immune cells in an inflammatory microenvironment, and thus, its interaction with nanoparticles is of considerable importance. In addition, recombinant TSR4+5 coated on the CMC-CNTs inhibited complement consumption by CMC-CNTs, suggesting that nanoparticle decoration with TSR4+5, can be potentially used as a complement inhibitor in a number of pathological contexts arising due to exaggerated complement activation.
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Affiliation(s)
- Lubna Kouser
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Basudev Paudyal
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
- Faculty of Science, Engineering and Computing, Kingston University, Kingston upon Thames, Surrey, United Kingdom
| | - Anuvinder Kaur
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Gudrun Stenbeck
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Lucy A. Jones
- Faculty of Science, Engineering and Computing, Kingston University, Kingston upon Thames, Surrey, United Kingdom
| | - Suhair M. Abozaid
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Cordula M. Stover
- Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
| | - Emmanuel Flahaut
- Université de Toulouse, CNRS, INPT, UPS, UMR CNRS-UPS-INP N°5085, 3 Paul Sabatier, Bât. CIRIMAT, Toulouse, France
| | - Robert B. Sim
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
| | - Uday Kishore
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
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11
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Schrittwieser S, Reichinger D, Schotter J. Applications, Surface Modification and Functionalization of Nickel Nanorods. MATERIALS (BASEL, SWITZERLAND) 2017; 11:E45. [PMID: 29283415 PMCID: PMC5793543 DOI: 10.3390/ma11010045] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 12/20/2017] [Accepted: 12/22/2017] [Indexed: 02/07/2023]
Abstract
The growing number of nanoparticle applications in science and industry is leading to increasingly complex nanostructures that fulfill certain tasks in a specific environment. Nickel nanorods already possess promising properties due to their magnetic behavior and their elongated shape. The relevance of this kind of nanorod in a complex measurement setting can be further improved by suitable surface modification and functionalization procedures, so that customized nanostructures for a specific application become available. In this review, we focus on nickel nanorods that are synthesized by electrodeposition into porous templates, as this is the most common type of nickel nanorod fabrication method. Moreover, it is a facile synthesis approach that can be easily established in a laboratory environment. Firstly, we will discuss possible applications of nickel nanorods ranging from data storage to catalysis, biosensing and cancer treatment. Secondly, we will focus on nickel nanorod surface modification strategies, which represent a crucial step for the successful application of nanorods in all medical and biological settings. Here, the immobilization of antibodies or peptides onto the nanorod surface adds another functionality in order to yield highly promising nanostructures.
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Affiliation(s)
- Stefan Schrittwieser
- Molecular Diagnostics, AIT Austrian Institute of Technology, 1220 Vienna, Austria.
| | - Daniela Reichinger
- Molecular Diagnostics, AIT Austrian Institute of Technology, 1220 Vienna, Austria.
| | - Joerg Schotter
- Molecular Diagnostics, AIT Austrian Institute of Technology, 1220 Vienna, Austria.
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12
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Hopkins X, Gill WA, Kringel R, Wang G, Hass J, Acharya S, Park J, Jeon IT, An BH, Lee JS, Ryu JE, Hill R, McIlroy D, Kim YK, Choi DS. Radio frequency-mediated local thermotherapy for destruction of pancreatic tumors using Ni-Au core-shell nanowires. NANOTECHNOLOGY 2017; 28:03LT01. [PMID: 27966462 DOI: 10.1088/1361-6528/28/3/03lt01] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We present a novel method of radio frequency (RF)-mediated thermotherapy in tumors by remotely heating nickel (Ni)-gold (Au) core-shell nanowires (CSNWs). Ectopic pancreatic tumors were developed in nude mice to evaluate the thermotherapeutic effects on tumor progression. Tumor ablation was produced by RF-mediated thermotherapy via activation of the paramagnetic properties of the Ni-Au CSNWs. Histopathology demonstrated that heat generated by RF irradiation caused significant cellular death with pyknotic nuclei and nuclear fragmentation dispersed throughout the tumors. These preliminary results suggest that thermotherapy ablation induced via RF activation of nanowires provides a potential alternative therapy for cancer treatment.
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Affiliation(s)
- Xiaoping Hopkins
- Department of Chemical and Materials Engineering, University of Idaho, Moscow, ID 83844, USA
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13
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Krithiga N, Viswanath KB, Vasantha V, Jayachitra A. Specific and selective electrochemical immunoassay for Pseudomonas aeruginosa based on pectin–gold nano composite. Biosens Bioelectron 2016; 79:121-9. [DOI: 10.1016/j.bios.2015.12.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Revised: 11/24/2015] [Accepted: 12/04/2015] [Indexed: 01/01/2023]
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14
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Gispert C, Serrà A, Alea M, Rodrigues M, Gómez E, Mora M, Sagristá M, Pérez-García L, Vallés E. Electrochemical preparation and characterization of magnetic core–shell nanowires for biomedical applications. Electrochem commun 2016. [DOI: 10.1016/j.elecom.2015.12.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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15
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Pondman KM, Pednekar L, Paudyal B, Tsolaki AG, Kouser L, Khan HA, Shamji MH, Ten Haken B, Stenbeck G, Sim RB, Kishore U. Innate immune humoral factors, C1q and factor H, with differential pattern recognition properties, alter macrophage response to carbon nanotubes. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2015; 11:2109-18. [PMID: 26169151 DOI: 10.1016/j.nano.2015.06.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 06/09/2015] [Accepted: 06/21/2015] [Indexed: 02/05/2023]
Abstract
UNLABELLED Interaction between the complement system and carbon nanotubes (CNTs) can modify their intended biomedical applications. Pristine and derivatised CNTs can activate complement primarily via the classical pathway which enhances uptake of CNTs and suppresses pro-inflammatory response by immune cells. Here, we report that the interaction of C1q, the classical pathway recognition molecule, with CNTs involves charge pattern and classical pathway activation that is partly inhibited by factor H, a complement regulator. C1q and its globular modules, but not factor H, enhanced uptake of CNTs by macrophages and modulated the pro-inflammatory immune response. Thus, soluble complement factors can interact differentially with CNTs and alter the immune response even without complement activation. Coating CNTs with recombinant C1q globular heads offers a novel way of controlling classical pathway activation in nanotherapeutics. Surprisingly, the globular heads also enhance clearance by phagocytes and down-regulate inflammation, suggesting unexpected complexity in receptor interaction. FROM THE CLINICAL EDITOR Carbon nanotubes (CNTs) maybe useful in the clinical setting as targeting drug carriers. However, it is also well known that they can interact and activate the complement system, which may have a negative impact on the applicability of CNTs. In this study, the authors functionalized multi-walled CNT (MWNT), and investigated the interaction with the complement pathway. These studies are important so as to gain further understanding of the underlying mechanism in preparation for future use of CNTs in the clinical setting.
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Affiliation(s)
- Kirsten M Pondman
- Centre for Infection, Immunity and Disease Mechanisms, Department of Life Sciences, College of Health and Life Sciences, Brunel University London, UK; Neuro Imaging, MIRA Institute, University of Twente, Enschede, the Netherlands
| | - Lina Pednekar
- Centre for Infection, Immunity and Disease Mechanisms, Department of Life Sciences, College of Health and Life Sciences, Brunel University London, UK
| | - Basudev Paudyal
- Centre for Infection, Immunity and Disease Mechanisms, Department of Life Sciences, College of Health and Life Sciences, Brunel University London, UK
| | - Anthony G Tsolaki
- Centre for Infection, Immunity and Disease Mechanisms, Department of Life Sciences, College of Health and Life Sciences, Brunel University London, UK
| | - Lubna Kouser
- Centre for Infection, Immunity and Disease Mechanisms, Department of Life Sciences, College of Health and Life Sciences, Brunel University London, UK
| | - Haseeb A Khan
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohamed H Shamji
- Allergy and Clinical Immunology, National Heart and lung Institute, Imperial College London, London, UK; MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
| | - Bennie Ten Haken
- Neuro Imaging, MIRA Institute, University of Twente, Enschede, the Netherlands
| | - Gudrun Stenbeck
- Centre for Infection, Immunity and Disease Mechanisms, Department of Life Sciences, College of Health and Life Sciences, Brunel University London, UK
| | - Robert B Sim
- Department of Pharmacology, University of Oxford, Oxford, UK; Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, UK
| | - Uday Kishore
- Centre for Infection, Immunity and Disease Mechanisms, Department of Life Sciences, College of Health and Life Sciences, Brunel University London, UK.
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16
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Fratila RM, Rivera-Fernández S, de la Fuente JM. Shape matters: synthesis and biomedical applications of high aspect ratio magnetic nanomaterials. NANOSCALE 2015; 7:8233-8260. [PMID: 25877250 DOI: 10.1039/c5nr01100k] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
High aspect ratio magnetic nanomaterials possess anisotropic properties that make them attractive for biological applications. Their elongated shape enables multivalent interactions with receptors through the introduction of multiple targeting units on their surface, thus enhancing cell internalization. Moreover, due to their magnetic anisotropy, high aspect ratio nanomaterials can outperform their spherical analogues as contrast agents for magnetic resonance imaging (MRI) applications. In this review, we first describe the two main synthetic routes for the preparation of anisotropic magnetic nanomaterials: (i) direct synthesis (in which the anisotropic growth is directed by tuning the reaction conditions or by using templates) and (ii) assembly methods (in which the high aspect ratio is achieved by assembly from individual building blocks). We then provide an overview of the biomedical applications of anisotropic magnetic nanomaterials: magnetic separation and detection, targeted delivery and magnetic resonance imaging.
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Affiliation(s)
- Raluca M Fratila
- Instituto de Nanociencia de Aragon (INA), Universidad de Zaragoza, C/Mariano Esquillor s/n, 50018 Zaragoza, Spain.
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17
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Lentijo-Mozo S, Tan RP, Garcia-Marcelot C, Altantzis T, Fazzini PF, Hungria T, Cormary B, Gallagher JR, Miller JT, Martinez H, Schrittwieser S, Schotter J, Respaud M, Bals S, Van Tendeloo G, Gatel C, Soulantica K. Air- and water-resistant noble metal coated ferromagnetic cobalt nanorods. ACS NANO 2015; 9:2792-2804. [PMID: 25734760 DOI: 10.1021/nn506709k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Cobalt nanorods possess ideal magnetic properties for applications requiring magnetically hard nanoparticles. However, their exploitation is undermined by their sensitivity toward oxygen and water, which deteriorates their magnetic properties. The development of a continuous metal shell inert to oxidation could render them stable, opening perspectives not only for already identified applications but also for uses in which contact with air and/or aqueous media is inevitable. However, the direct growth of a conformal noble metal shell on magnetic metals is a challenge. Here, we show that prior treatment of Co nanorods with a tin coordination compound is the crucial step that enables the subsequent growth of a continuous noble metal shell on their surface, rendering them air- and water-resistant, while conserving the monocrystallity, metallicity and the magnetic properties of the Co core. Thus, the as-synthesized core-shell ferromagnetic nanorods combine high magnetization and strong uniaxial magnetic anisotropy, even after exposure to air and water, and hold promise for successful implementation in in vitro biodiagnostics requiring probes of high magnetization and anisotropic shape.
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Affiliation(s)
- Sergio Lentijo-Mozo
- †Laboratoire de Physique et Chimie des Nano-objets (LPCNO), Université de Toulouse; INSA, UPS, CNRS, 135 avenue de Rangueil, 31077 Toulouse, France
| | - Reasmey P Tan
- †Laboratoire de Physique et Chimie des Nano-objets (LPCNO), Université de Toulouse; INSA, UPS, CNRS, 135 avenue de Rangueil, 31077 Toulouse, France
| | - Cécile Garcia-Marcelot
- †Laboratoire de Physique et Chimie des Nano-objets (LPCNO), Université de Toulouse; INSA, UPS, CNRS, 135 avenue de Rangueil, 31077 Toulouse, France
- ‡Centre d'Elaboration de Matériaux et d'Etudes Structurales (CEMES-CNRS), 29 rue Jeanne Marvig, B.P. 94347, 31055 Toulouse, France
| | - Thomas Altantzis
- §Electron Microscopy for Materials Research (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Pier-Francesco Fazzini
- †Laboratoire de Physique et Chimie des Nano-objets (LPCNO), Université de Toulouse; INSA, UPS, CNRS, 135 avenue de Rangueil, 31077 Toulouse, France
| | - Teresa Hungria
- †Laboratoire de Physique et Chimie des Nano-objets (LPCNO), Université de Toulouse; INSA, UPS, CNRS, 135 avenue de Rangueil, 31077 Toulouse, France
| | - Benoit Cormary
- †Laboratoire de Physique et Chimie des Nano-objets (LPCNO), Université de Toulouse; INSA, UPS, CNRS, 135 avenue de Rangueil, 31077 Toulouse, France
| | - James R Gallagher
- ⊥Chemical Science and Engineering Division, Argonne National Laboratory, 9700 S Cass Avenue, Argonne, Illinois 60439, United States
| | - Jeffrey T Miller
- ⊥Chemical Science and Engineering Division, Argonne National Laboratory, 9700 S Cass Avenue, Argonne, Illinois 60439, United States
| | - Herve Martinez
- ∥IPREM-ECP CNRS UMR 5254, Université de Pau, Hélioparc Pau Pyrénées, 2 av. Pierre Angot, 64053 Pau Cedex 9, France
| | - Stefan Schrittwieser
- #Molecular Diagnostics, AIT Austrian Institute of Technology, Vienna, Donau City Strasse 1, 1220 Vienna, Austria
| | - Joerg Schotter
- #Molecular Diagnostics, AIT Austrian Institute of Technology, Vienna, Donau City Strasse 1, 1220 Vienna, Austria
| | - Marc Respaud
- †Laboratoire de Physique et Chimie des Nano-objets (LPCNO), Université de Toulouse; INSA, UPS, CNRS, 135 avenue de Rangueil, 31077 Toulouse, France
| | - Sara Bals
- §Electron Microscopy for Materials Research (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Gustaaf Van Tendeloo
- §Electron Microscopy for Materials Research (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Christophe Gatel
- ‡Centre d'Elaboration de Matériaux et d'Etudes Structurales (CEMES-CNRS), 29 rue Jeanne Marvig, B.P. 94347, 31055 Toulouse, France
| | - Katerina Soulantica
- †Laboratoire de Physique et Chimie des Nano-objets (LPCNO), Université de Toulouse; INSA, UPS, CNRS, 135 avenue de Rangueil, 31077 Toulouse, France
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Zhao Y, Liu L, Kong D, Kuang H, Wang L, Xu C. Dual amplified electrochemical immunosensor for highly sensitive detection of Pantoea stewartii sbusp. stewartii. ACS APPLIED MATERIALS & INTERFACES 2014; 6:21178-21183. [PMID: 25384268 DOI: 10.1021/am506104r] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Accurate and highly sensitive detection of Pantoea stewartii sbusp. stewartii-NCPPB 449 (PSS) is urgently required for international shipments due to tremendous agricultural economic losses. Herein, a dual amplified electrochemical sandwich immunosensor for PSS detection was developed, utilizing the good specificity and low cost of electrochemical immunoassay, the favorable conductivity and large specific surface area of gold nanoparticles (Au NPs), and the excellent catalytic ability of and horseradish peroxidase (HRP). A linear curve between current response and PSS concentration was established, and the limit of detection (LOD) was 7.8 × 10(3) cfu/mL, which is 20 times lower than that for conventional enzyme-linked immunosorbent assay (ELISA). This strategy is a useful approach for the highly sensitive detection of plant pathogenic bacterium.
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Affiliation(s)
- Yuan Zhao
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University , Wuxi, Jiangsu 214122, People's Republic of China
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Shi L, Chu Z, Liu Y, Peng J, Jin W. Three-dimensional porous microarray of gold modified electrode for ultrasensitive and simultaneous assay of various cancer biomarkers. J Mater Chem B 2014; 2:2658-2665. [DOI: 10.1039/c4tb00016a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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