Synthesis of Ni@Au core-shell magnetic nanotubes for bioapplication and SERS detection
Shumskaya A. Korolkov I. Rogachev A. Ignatovich Z. Kozlovskiy A. Zdorovets M. Anisovich M. Bashouti M. Shalabny A. Busool R. Khubezhov S. Yakimchuk D. Bundyukova V. Panina L.V. Kaniukov E.
5 October 2021Elsevier B.V.
Colloids and Surfaces A: Physicochemical and Engineering Aspects
2021#626
Ni@Au core-shell nanotubes were synthesized using a two-stage method including Ni nanotubes growth in pores of PET template and their electroless wet-chemical functionalizing with gold. The structure, morphology, chemical composition, surface condition and magnetic properties of Ni@Au nanotubes were comprehensively studied. Cellular cytotoxicity of Ni and Ni@Au nanotubes was evaluated demonstrating its strong reduction when nanotubes were coated with Au layer. The gold layer had a granular structure with some agglomerations resulting in surface irregularities which is advantageous for surface-enhanced Raman spectroscopy (SERS). The fundamental possibility of using the functionalized Ni@Au nanotubes as SERS substrates was demonstrated by the example of methylene blue detection for concentrations down to 10−6 M. The average enhancement factor was 104, which is sufficient for use in chemo- and biosensorics.
Core-shell magnetic nanostructures , Magnetic nanotubes , SERS , Template synthesis , Toxicity
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Institute of Chemistry of New Materials of the National Academy of Sciences of Belarus, Minsk, Belarus
L.N. Gumilyov Eurasian National University, Astana, Kazakhstan
The Institute of Nuclear Physics, Almaty, Kazakhstan
Ural Federal University named after the first President of Russia B.N.Yeltsin, Ekaterinburg, Russian Federation
Republican Unitary Enterprise “Scientific-Practical Centre of Hygiene”, Minsk, Belarus
Department of Solar Energy and Environmental Physics, Swiss Institute for Dryland Environmental and Energy Research, J. Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshset Ben-Gurion, 8499000, Israel
The IlSe-Katz Institute for Nanoscale Science & Technology, Ben-Gurion University of the Negev, Beersheba, 8410501, Israel
Department of Physics, North-Ossetian State University, Vladikavkaz, 362025, Russian Federation
Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russian Federation
SSPA “Scientific and Practical Materials Research Center of NAS of Belarus”, P. Brovki str., 19, Minsk, 220072, Belarus
National University of Science and Technology “MISIS”, Leninsky prospect, 4, Moscow, 119049, Russian Federation
Institute for Design Problems in Microelectronics RAS, Moscow, 124365, Russian Federation
South Ural State University, Lenin prospekt, 76, Chelyabinsk, 454080, Russian Federation
Institute of Chemistry of New Materials of the National Academy of Sciences of Belarus
L.N. Gumilyov Eurasian National University
The Institute of Nuclear Physics
Ural Federal University named after the first President of Russia B.N.Yeltsin
Republican Unitary Enterprise “Scientific-Practical Centre of Hygiene”
Department of Solar Energy and Environmental Physics
The IlSe-Katz Institute for Nanoscale Science & Technology
Department of Physics
Department of Physics and Engineering
SSPA “Scientific and Practical Materials Research Center of NAS of Belarus”
National University of Science and Technology “MISIS”
Institute for Design Problems in Microelectronics RAS
South Ural State University
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