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One-pot synthesis of maghemite nanocrystals across aqueous and organic solvents for magnetic hyperthermia

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10379312" target="_blank" >RIV/00216208:11320/18:10379312 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1016/j.apmt.2018.06.003" target="_blank" >https://doi.org/10.1016/j.apmt.2018.06.003</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.apmt.2018.06.003" target="_blank" >10.1016/j.apmt.2018.06.003</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    One-pot synthesis of maghemite nanocrystals across aqueous and organic solvents for magnetic hyperthermia

  • Original language description

    Superparamagnetic iron oxide nanocrystals (SPIONs) continue to receive intensive interest due to their significant prospects in biomedical applications. However, a critical requirement for such applications is the ability to synthesise high quality nanocrystals that are not only readily dispersible in aqueous solvents, but also retain good magnetic properties in an aqueous medium. This is not easy to achieve because, although organic solvent-based syntheses provide better control over SPIONs properties, their magnetic properties in particular, tend to deteriorate during aqueous phase transfer. In the current work, we propose a new route for the synthesis of high quality SPIONs using triethylamine (TEA) as a dynamic amphiphilic molecule. We demonstrate that in a single step, TEA can directly synthesise SPIONs that are readily dispersible in both aqueous and organic media. We further demonstrate the versatility of TEA in facilitating one-step phase transfer of SPIONs from organic to aqueous solvents. We then extend the applicability of this approach to demonstrate for the first time that organic molecules-capped SPIONs can also be directly dispersed in aqueous solvents. These SPIONs show remarkable potential for hyperthermia, as demonstrated through their outstanding magnetic field induced heating performance, which improves after their phase transfer to the aqueous phase. The current study establishes the importance of a suitable nanoparticle phase transfer protocol to ensure that the final product retains all the desirable application-focussed properties. (C) 2018 Published by Elsevier Ltd.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Result continuities

  • Project

    <a href="/en/project/LM2011025" target="_blank" >LM2011025: MLTL - Magnetism and Low Temperature Laboratories - operation and development of national research infrastructure</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Applied Materials Today

  • ISSN

    2352-9407

  • e-ISSN

  • Volume of the periodical

    12

  • Issue of the periodical within the volume

    září

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    10

  • Pages from-to

    250-259

  • UT code for WoS article

    000443213700022

  • EID of the result in the Scopus database

    2-s2.0-85048725388