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Author Rehor, I.; Lee, K.L.; Chen, K.; Hajek, M.; Havlik, J.; Lokajova, J.; Masat, M.; Slegerova, J.; Shukla, S.; Heidari, H.; Bals, S.; Steinmetz, N.F.; Cigler, P.
Title Plasmonic nanodiamonds : targeted coreshell type nanoparticles for cancer cell thermoablation Type A1 Journal article
Year (down) 2015 Publication Advanced healthcare materials Abbreviated Journal Adv Healthc Mater
Volume 4 Issue 4 Pages 460-468
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract Targeted biocompatible nanostructures with controlled plasmonic and morphological parameters are promising materials for cancer treatment based on selective thermal ablation of cells. Here, coreshell plasmonic nanodiamonds consisting of a silica-encapsulated diamond nanocrystal coated in a gold shell are designed and synthesized. The architecture of particles is analyzed and confirmed in detail using electron tomography. The particles are biocompatibilized using a PEG polymer terminated with bioorthogonally reactive alkyne groups. Azide-modified transferrin is attached to these particles, and their high colloidal stability and successful targeting to cancer cells overexpressing the transferrin receptor are demonstrated. The particles are nontoxic to the cells and they are readily internalized upon binding to the transferrin receptor. The high plasmonic cross section of the particles in the near-infrared region is utilized to quantitatively ablate the cancer cells with a short, one-minute irradiation by a pulse 750-nm laser.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000349961600014 Publication Date 2015-02-18
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2192-2640; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 5.11 Times cited 30 Open Access OpenAccess
Notes 335078 Colouratom; ECAS_Sara; (ROMEO:yellow; preprint:; postprint:restricted ; pdfversion:cannot); Approved Most recent IF: 5.11; 2015 IF: 5.797
Call Number c:irua:125375 Serial 2647
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Author Rehor, I.; Slegerova, J.; Kucka, J.; Proks, V.; Petrakova, V.; Adam, M.P.; Treussart, F.; Turner, S.; Bals, S.; Sacha, P.; Ledvina, M.; Wen, A.M.; Steinmetz, N.F.; Cigler, P.;
Title Fluorescent nanodiamonds embedded in biocompatible translucent shells Type A1 Journal article
Year (down) 2014 Publication Small Abbreviated Journal Small
Volume 10 Issue 6 Pages 1106-1115
Keywords A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
Abstract High pressure high temperature (HPHT) nanodiamonds (NDs) represent extremely promising materials for construction of fluorescent nanoprobes and nanosensors. However, some properties of bare NDs limit their direct use in these applications: they precipitate in biological solutions, only a limited set of bio-orthogonal conjugation techniques is available and the accessible material is greatly polydisperse in shape. In this work, we encapsulate bright 30-nm fluorescent nanodiamonds (FNDs) in 1020-nm thick translucent (i.e., not altering FND fluorescence) silica shells, yielding monodisperse near-spherical particles of mean diameter 66 nm. High yield modification of the shells with PEG chains stabilizes the particles in ionic solutions, making them applicable in biological environments. We further modify the opposite ends of PEG chains with fluorescent dyes or vectoring peptide using click chemistry. High conversion of this bio-orthogonal coupling yielded circa 2000 dye or peptide molecules on a single FND. We demonstrate the superior properties of these particles by in vitro interaction with human prostate cancer cells: while bare nanodiamonds strongly aggregate in the buffer and adsorb onto the cell membrane, the shell encapsulated NDs do not adsorb nonspecifically and they penetrate inside the cells.
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Corporate Author Thesis
Publisher Place of Publication Weinheim Editor
Language Wos 000333538000012 Publication Date 2014-02-05
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1613-6810; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 8.643 Times cited 79 Open Access Not_Open_Access
Notes 262348 ESMI; Hercules; FWO Approved Most recent IF: 8.643; 2014 IF: 8.368
Call Number UA @ lucian @ c:irua:115566 Serial 1234
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Author Rehor, I.; Mackova, H.; Filippov, S.K.; Kucka, J.; Proks, V.; Slegerova, J.; Turner, S.; Van Tendeloo, G.; Ledvina, M.; Hruby, M.; Cigler, P.;
Title Fluorescent nanodiamonds with bioorthogonally reactive protein-resistant polymeric coatings Type A1 Journal article
Year (down) 2014 Publication ChemPlusChem Abbreviated Journal Chempluschem
Volume 79 Issue 1 Pages 21-24
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract The novel synthesis of a polymeric interface grown from the surface of bright fluorescent nanodiamonds is reported. The polymer enables bioorthogonal attachment of various molecules by click chemistry; the particles are resistant to nonspecific protein adsorption and show outstanding colloidal stability in buffers and biological media. The coating fully preserves the unique optical properties of the nitrogen-vacancy centers that are crucial for bioimaging and sensoric applications.
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000337974900002 Publication Date 2013-12-11
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2192-6506; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 2.797 Times cited 34 Open Access
Notes EU 7FP Program (no.262348); European Soft Matter Infrastructure; ESMI; ERC (grant no.246791)-COUNTATOMS; FWO Approved Most recent IF: 2.797; 2014 IF: 2.997
Call Number UA @ lucian @ c:irua:113088 Serial 1235
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