Halloysite nanotubes with immobilized plasmonic nanoparticles for biophotonic applications
Kornilova A.V. Novikov S.M. Kuralbayeva G.A. Jana S. Lysenko I.V. Shpichka A.I. Stavitskaya A.V. Gorbachevskii M.V. Novikov A.A. Ikramova S.B. Timashev P.S. Arsenin A.V. Volkov V.S. Vasiliev A.N. Timoshenko V.Yu.
2 May 2021MDPI AG
Applied Sciences (Switzerland)
2021#11Issue 10
Halloysite nanotubes (HNTs) with immobilized gold (Au) and silver (Ag) nanoparticles (NPs) belong to a class of nanocomposite materials whose physical properties and applications de-pend on the geometry of arrangements of the plasmonic nanoparticles on HNT’ surfaces. We ex-plore HNTs:(Au, Ag)-NPs as potential nano-templates for surface-enhanced Raman scattering (SERS). The structure and plasmonic properties of nanocomposites based on HNTs and Au-and Ag-NPs are studied by means of the transmission electron microscopy and optical spectroscopy. The optical extinction spectra of aqueous suspensions of HNTs:(Au, Ag)-NPs and spatial distributions of the electric fields are simulated, and the simulation results demonstrate the corresponding localized plasmonic resonances and numerous “hot spots” of the electric field nearby those NPs. In vitro experiments reveal an enhancement of the protein SERS in fibroblast cells with added HNTs:Ag-NPs. The observed optical properties and SERS activity of the nanocomposites based on HNTs and plasmonic NPs are promising for their applications in biosensorics and biophotonics.
Biophotonics , Biosensorics , Halloysite , Nanoparticles , Optical properties simulation , Plasmonics , Surface-enhanced Raman scattering
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Physics Department, Lomonosov Moscow State University, Moscow, 119991, Russian Federation
Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology (MIPT), Dolgoprudny, 141700, Russian Federation
National University of Science and Technology “MISIS”, Moscow, 119049, Russian Federation
S. N. Bose National Centre for Basic Sciences, Kolkata, 700106, India
Physics Department, Taras Shevchenko National University of Kyiv, Kyiv, 01601, Ukraine
World-Class Research Center Digital Biodesign and Personalized Healthcare, Sechenov University, Moscow, 119991, Russian Federation
Functional Aluminosilicate Nanomaterials Lab, Department of Physical and Colloid Chemistry, Gubkin University, Moscow, 119991, Russian Federation
Faculty of Physics and Technology, Al-Farabi Kazakh National University, 71, Al-Farabi Ave., Almaty, 050040, Kazakhstan
Institute for Regenerative Medicine, Sechenov University, Moscow, 119991, Russian Federation
Department of Polymers and Composites, N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Moscow, 119991, Russian Federation
Chemistry Department, Lomonosov Moscow State University, Moscow, 119991, Russian Federation
National Research South, Ural State University, Chelyabinsk, 454080, Russian Federation
Phys-Bio Institute, National Research Nuclear University “MEPhI”, Moscow, 115409, Russian Federation
Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, 119333, Russian Federation
Physics Department
Center for Photonics and 2D Materials
National University of Science and Technology “MISIS”
S. N. Bose National Centre for Basic Sciences
Physics Department
World-Class Research Center Digital Biodesign and Personalized Healthcare
Functional Aluminosilicate Nanomaterials Lab
Faculty of Physics and Technology
Institute for Regenerative Medicine
Department of Polymers and Composites
Chemistry Department
National Research South
Phys-Bio Institute
Lebedev Physical Institute of the Russian Academy of Sciences
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