1
|
Kruglov AG, Romshin AM, Nikiforova AB, Plotnikova A, Vlasov II. Warm Cells, Hot Mitochondria: Achievements and Problems of Ultralocal Thermometry. Int J Mol Sci 2023; 24:16955. [PMID: 38069275 PMCID: PMC10707128 DOI: 10.3390/ijms242316955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 12/18/2023] Open
Abstract
Temperature is a crucial regulator of the rate and direction of biochemical reactions and cell processes. The recent data indicating the presence of local thermal gradients associated with the sites of high-rate thermogenesis, on the one hand, demonstrate the possibility for the existence of "thermal signaling" in a cell and, on the other, are criticized on the basis of thermodynamic calculations and models. Here, we review the main thermometric techniques and sensors developed for the determination of temperature inside living cells and diverse intracellular compartments. A comparative analysis is conducted of the results obtained using these methods for the cytosol, nucleus, endo-/sarcoplasmic reticulum, and mitochondria, as well as their biological consistency. Special attention is given to the limitations, possible sources of errors and ambiguities of the sensor's responses. The issue of biological temperature limits in cells and organelles is considered. It is concluded that the elaboration of experimental protocols for ultralocal temperature measurements that take into account both the characteristics of biological systems, as well as the properties and limitations of each type of sensor is of critical importance for the generation of reliable results and further progress in this field.
Collapse
Affiliation(s)
- Alexey G. Kruglov
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Russia;
| | - Alexey M. Romshin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia;
| | - Anna B. Nikiforova
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142290 Pushchino, Russia;
| | - Arina Plotnikova
- Institute for Physics and Engineering in Biomedicine, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute MEPhI), 115409 Moscow, Russia;
| | - Igor I. Vlasov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia;
| |
Collapse
|
2
|
Romshin AM, Zeeb V, Glushkov E, Radenovic A, Sinogeikin AG, Vlasov II. Nanoscale thermal control of a single living cell enabled by diamond heater-thermometer. Sci Rep 2023; 13:8546. [PMID: 37236978 DOI: 10.1038/s41598-023-35141-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 05/13/2023] [Indexed: 05/28/2023] Open
Abstract
We report a new approach to controllable thermal stimulation of a single living cell and its compartments. The technique is based on the use of a single polycrystalline diamond particle containing silicon-vacancy (SiV) color centers. Due to the presence of amorphous carbon at its intercrystalline boundaries, such a particle is an efficient light absorber and becomes a local heat source when illuminated by a laser. Furthermore, the temperature of such a local heater is tracked by the spectral shift of the zero-phonon line of SiV centers. Thus, the diamond particle acts simultaneously as a heater and a thermometer. In the current work, we demonstrate the ability of such a Diamond Heater-Thermometer (DHT) to locally alter the temperature, one of the numerous parameters that play a decisive role for the living organisms at the nanoscale. In particular, we show that the local heating of 11-12 °C relative to the ambient temperature (22 °C) next to individual HeLa cells and neurons, isolated from the mouse hippocampus, leads to a change in the intracellular distribution of the concentration of free calcium ions. For individual HeLa cells, a long-term (about 30 s) increase in the integral intensity of Fluo-4 NW fluorescence by about three times is observed, which characterizes an increase in the [Ca2+]cyt concentration of free calcium in the cytoplasm. Heating near mouse hippocampal neurons also caused a calcium surge-an increase in the intensity of Fluo-4 NW fluorescence by 30% and a duration of ~ 0.4 ms.
Collapse
Affiliation(s)
- Alexey M Romshin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilov str. 38, Moscow, 119991, Russia.
| | - Vadim Zeeb
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Pushchino, Moscow Region, 142292, Russia.
| | - Evgenii Glushkov
- Laboratory of Nanoscale Biology, Institute of Bioengineering, Ecole Polytechnique Federale de Lausanne (EPFL), 1015, Lausanne, Switzerland
| | - Aleksandra Radenovic
- Laboratory of Nanoscale Biology, Institute of Bioengineering, Ecole Polytechnique Federale de Lausanne (EPFL), 1015, Lausanne, Switzerland
| | - Andrey G Sinogeikin
- NanThermix SA, Ecole Polytechnique Federale de Lausanne (EPFL) Innovation Park, 1015, Lausanne, Switzerland
| | - Igor I Vlasov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilov str. 38, Moscow, 119991, Russia
| |
Collapse
|
3
|
Romshin AM, Osypov AA, Popova IY, Zeeb VE, Sinogeykin AG, Vlasov II. Heat Release by Isolated Mouse Brain Mitochondria Detected with Diamond Thermometer. Nanomaterials (Basel) 2022; 13:98. [PMID: 36616008 PMCID: PMC9823591 DOI: 10.3390/nano13010098] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/15/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
The production of heat by mitochondria is critical for maintaining body temperature, regulating metabolic rate, and preventing oxidative damage to mitochondria and cells. Until the present, mitochondrial heat production has been characterized only by methods based on fluorescent probes, which are sensitive to environmental variations (viscosity, pH, ionic strength, quenching, etc.). Here, for the first time, the heat release of isolated mitochondria was unambiguously measured by a diamond thermometer (DT), which is absolutely indifferent to external non-thermal parameters. We show that during total uncoupling of transmembrane potential by CCCP application, the temperature near the mitochondria rises by 4-22 °C above the ambient temperature with an absolute maximum of 45 °C. Such a broad variation in the temperature response is associated with the heterogeneity of the mitochondria themselves as well as their aggregations in the isolated suspension. Spontaneous temperature bursts with comparable amplitude were also detected prior to CCCP application, which may reflect involvement of some mitochondria to ATP synthesis or membrane potential leaking to avoid hyperproduction of reactive oxygen species. The results obtained with the diamond temperature sensor shed light on the "hot mitochondria" paradox.
Collapse
Affiliation(s)
- Alexey M. Romshin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Alexander A. Osypov
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142292 Moscow, Russia
- Institute of Higher Nervous Activity and Neurophysiology of the Russian Academy of Sciences, 117485 Moscow, Russia
| | - Irina Yu. Popova
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142292 Moscow, Russia
| | - Vadim E. Zeeb
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142292 Moscow, Russia
| | | | - Igor I. Vlasov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
| |
Collapse
|
4
|
Gritsienko AV, Duleba A, Pugachev MV, Kurochkin NS, Vlasov II, Vitukhnovsky AG, Kuntsevich AY. Photodynamics of Bright Subnanosecond Emission from Pure Single-Photon Sources in Hexagonal Boron Nitride. Nanomaterials (Basel) 2022; 12:4495. [PMID: 36558349 PMCID: PMC9782090 DOI: 10.3390/nano12244495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/06/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Bright and stable emitters of single indistinguishable photons are crucial for quantum technologies. The origin of the promising bright emitters recently observed in hexagonal boron nitride (hBN) still remains unclear. This study reports pure single-photon sources in multi-layered hBN at room temperature that demonstrate high emission rates. The quantum emitters are introduced with argon beam treatment and air annealing of mechanically exfoliated hBN flakes with thicknesses of 5-100 nm. Spectral and time-resolved measurements reveal the emitters have more than 1 GHz of excited-to-ground state transition rate. The observed photoswitching between dark and bright states indicates the strong sensitivity of the emitter to the electrostatic environment and the importance of the indirect excitation for the photodynamics.
Collapse
Affiliation(s)
- Alexander V. Gritsienko
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy Pr., 119991 Moscow, Russia
- Moscow Institute of Physics and Technology, National Research University, 9 Institutskií Per., 141700 Dolgoprudnyí, Russia
| | - Aliaksandr Duleba
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy Pr., 119991 Moscow, Russia
| | - Mikhail V. Pugachev
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy Pr., 119991 Moscow, Russia
| | - Nikita S. Kurochkin
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy Pr., 119991 Moscow, Russia
- Moscow Institute of Physics and Technology, National Research University, 9 Institutskií Per., 141700 Dolgoprudnyí, Russia
| | - Igor I. Vlasov
- Moscow Institute of Physics and Technology, National Research University, 9 Institutskií Per., 141700 Dolgoprudnyí, Russia
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilov str. 38, 119991 Moscow, Russia
| | - Alexei G. Vitukhnovsky
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy Pr., 119991 Moscow, Russia
- Moscow Institute of Physics and Technology, National Research University, 9 Institutskií Per., 141700 Dolgoprudnyí, Russia
| | - Alexandr Yu. Kuntsevich
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy Pr., 119991 Moscow, Russia
| |
Collapse
|
5
|
Kudryavtsev OS, Bagramov RH, Satanin AM, Shiryaev AA, Lebedev OI, Romshin AM, Pasternak DG, Nikolaev AV, Filonenko VP, Vlasov II. Fano-type Effect in Hydrogen-Terminated Pure Nanodiamond. Nano Lett 2022; 22:2589-2594. [PMID: 35302763 DOI: 10.1021/acs.nanolett.1c04887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Two novel properties, unique for semiconductors, a negative electron affinity and a high p-type surface electrical conductivity, were discovered in diamond at the end of the last century. Both properties appear when the diamond surface is hydrogenated. A natural question arises: is the influence of the surface hydrogen on diamond limited only to the electrical properties? Here, for the first time to our knowledge, we observe a transparency peak at 1328 cm-1 in the infrared absorption of hydrogen-terminated pure (undoped) nanodiamonds. This new optical property is ascribed to Fano-type destructive interference between zone-center optical phonons and free carriers (holes) appearing in the near-surface layer of hydrogenated nanodiamond. This work opens the way to explore the physics of electron-phonon coupling in undoped semiconductors and promises the application of H-terminated nanodiamonds as a new optical material with induced transparency in the infrared optical range.
Collapse
Affiliation(s)
- Oleg S Kudryavtsev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Rustem H Bagramov
- Vereshchagin Institute of High Pressure Physics, Russian Academy of Sciences, 108840 Moscow, Troitsk, Russia
| | - Arkady M Satanin
- Dukhov All-Russia Research Institute of Automatics, 127030 Moscow, Russia
- National Research University Higher School of Economics, 101000 Moscow, Russia
| | - Andrey A Shiryaev
- Frumkin Institute of Physical Chemistry and Electrochemistry RAS, 119071 Moscow, Russia
| | - Oleg I Lebedev
- Laboratoire CRISMAT, UMR 6508 CNRS-ENSICAEN, 14050, Caen, France
| | - Alexey M Romshin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Dmitrii G Pasternak
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Alexander V Nikolaev
- Skobeltsyn Institute of Nuclear Physics Lomonosov Moscow State University, 119991 Moscow, Russia
- School of Electronics, Photonics and Molecular Physics, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Moscow region, Russia
| | - Vladimir P Filonenko
- Vereshchagin Institute of High Pressure Physics, Russian Academy of Sciences, 108840 Moscow, Troitsk, Russia
| | - Igor I Vlasov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
| |
Collapse
|
6
|
Obydennov DV, Shilkin DA, Elyas EI, Yaroshenko VV, Kudryavtsev OS, Zuev DA, Lyubin EV, Ekimov EA, Vlasov II, Fedyanin AA. Spontaneous Light Emission Assisted by Mie Resonances in Diamond Nanoparticles. Nano Lett 2021; 21:10127-10132. [PMID: 34492189 DOI: 10.1021/acs.nanolett.1c02616] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Spontaneous light emission is known to be affected by the local density of states and enhanced when coupled to a resonant cavity. Here, we report on an experimental study of silicon-vacancy (SiV) color center fluorescence and spontaneous Raman scattering from subwavelength diamond particles supporting low-order Mie resonances in the visible range. For the first time to our knowledge, we have measured the size dependences of the SiV fluorescence emission rate and the Raman scattering intensity from individual diamond particles in the range from 200 to 450 nm. The obtained dependences reveal a sequence of peaks, which we explicitly associate with specific multipole resonances. The results are in agreement with our theoretical analysis and highlight the potential of intrinsic optical resonances for developing nanodiamond-based lasers and single-photon sources.
Collapse
Affiliation(s)
- Dmitry V Obydennov
- Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Daniil A Shilkin
- Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Ekaterina I Elyas
- Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Vitaly V Yaroshenko
- School of Physics and Engineering, ITMO University, St. Petersburg 191002, Russia
| | - Oleg S Kudryavtsev
- Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow 119991, Russia
| | - Dmitry A Zuev
- School of Physics and Engineering, ITMO University, St. Petersburg 191002, Russia
| | - Evgeny V Lyubin
- Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Evgeny A Ekimov
- Institute for High Pressure Physics, Russian Academy of Sciences, Troitsk 142190, Russia
- Lebedev Physical Institute, Russian Academy of Sciences, Moscow 117924, Russia
| | - Igor I Vlasov
- Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow 119991, Russia
| | - Andrey A Fedyanin
- Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| |
Collapse
|
7
|
Romshin AM, Zeeb V, Martyanov AK, Kudryavtsev OS, Pasternak DG, Sedov VS, Ralchenko VG, Sinogeykin AG, Vlasov II. A new approach to precise mapping of local temperature fields in submicrometer aqueous volumes. Sci Rep 2021; 11:14228. [PMID: 34244547 PMCID: PMC8270900 DOI: 10.1038/s41598-021-93374-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 06/16/2021] [Indexed: 11/09/2022] Open
Abstract
Nanodiamonds hosting temperature-sensing centers constitute a closed thermodynamic system. Such a system prevents direct contact of the temperature sensors with the environment making it an ideal environmental insensitive nanosized thermometer. A new design of a nanodiamond thermometer, based on a 500-nm luminescent nanodiamond embedded into the inner channel of a glass submicron pipette is reported. All-optical detection of temperature, based on spectral changes of the emission of "silicon-vacancy" centers with temperature, is used. We demonstrate the applicability of the thermometric tool to the study of temperature distribution near a local heater, placed in an aqueous medium. The calculated and experimental values of temperatures are shown to coincide within measurement error at gradients up to 20 °C/μm. Until now, temperature measurements on the submicron scale at such high gradients have not been performed. The new thermometric tool opens up unique opportunities to answer the urgent paradigm-shifting questions of cell physiology thermodynamics.
Collapse
Affiliation(s)
- Alexey M Romshin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilov str. 38, Moscow, Russia, 119991
| | - Vadim Zeeb
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Pushchino, Moscow Region, Russia, 142292.
| | - Artem K Martyanov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilov str. 38, Moscow, Russia, 119991
| | - Oleg S Kudryavtsev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilov str. 38, Moscow, Russia, 119991
| | - Dmitrii G Pasternak
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilov str. 38, Moscow, Russia, 119991
| | - Vadim S Sedov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilov str. 38, Moscow, Russia, 119991
| | - Victor G Ralchenko
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilov str. 38, Moscow, Russia, 119991
| | - Andrey G Sinogeykin
- Wonder Technologies LLC, Skolkovo Innovation Center, Bolshoy blvd. 42, Moscow, Russia
| | - Igor I Vlasov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilov str. 38, Moscow, Russia, 119991.
| |
Collapse
|
8
|
Barmina EV, Mukhametyanov BA, Uvarov OV, Vlasov II, Kudryavtsev OS, Kalachev YL, Skoulas E, Kourmoulakis G, Voronov VV, Stratakis E, Shafeev GA. Laser-Assisted Synthesis of Composite Nanoparticles of Perovskite BaTiO 3 in Aqueous Solutions and Their Optical Properties. Materials (Basel) 2020; 13:ma13184086. [PMID: 32937999 PMCID: PMC7560434 DOI: 10.3390/ma13184086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 08/27/2020] [Accepted: 09/10/2020] [Indexed: 11/16/2022]
Abstract
Experimental results are presented on laser-assisted synthesis of composite nanoparticles of perovskite BaTiO3 with gold nanoparticles using the technique of laser ablation in water and aqueous solution of hydrogen peroxide. Nanoparticles of BaTiO3 are generated by near IR laser radiation with pulse durations of 170 fs, 1 ps, and 200 ns. Nanoparticles of barium titanate BaTiO3 (BTO) have tetragonal structure for all used pulse durations. Two ways of synthesis are tested. In the first one a gold target is ablated in the colloidal solution of BaTiO3 nanoparticles. The second way consists of laser exposure of the mixture of colloidal solutions of nanoparticles of BaTiO3 and Au. Synthesized composite nanoparticles are characterized by optical spectroscopy, Raman spectroscopy, X-Ray diffractometry, and Transmission Electron Microscopy. Composite BaTiO3‑Au nanoparticles have the absorption band in the visible range of spectrum and demonstrate plasmonic luminescence.
Collapse
Affiliation(s)
- Ekaterina V Barmina
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38, Vavilov street, 119991 Moscow, Russia, (E.V.B.)
| | - Bulat A Mukhametyanov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38, Vavilov street, 119991 Moscow, Russia, (E.V.B.)
| | - Oleg V Uvarov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38, Vavilov street, 119991 Moscow, Russia, (E.V.B.)
| | - Igor I Vlasov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38, Vavilov street, 119991 Moscow, Russia, (E.V.B.)
| | - Oleg S Kudryavtsev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38, Vavilov street, 119991 Moscow, Russia, (E.V.B.)
| | - Yurii L Kalachev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38, Vavilov street, 119991 Moscow, Russia, (E.V.B.)
| | - Evangelos Skoulas
- Ιnstitute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, Heraklion, 71110 Crete, Greece, (E.S.)
- Department of Materials Science and Technology, University of Crete, Heraklion, 70013 Crete, Greece
| | - George Kourmoulakis
- Ιnstitute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, Heraklion, 71110 Crete, Greece, (E.S.)
- Department of Materials Science and Technology, University of Crete, Heraklion, 70013 Crete, Greece
| | - Valeriy V Voronov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38, Vavilov street, 119991 Moscow, Russia, (E.V.B.)
| | - Emmanuel Stratakis
- Ιnstitute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, Heraklion, 71110 Crete, Greece, (E.S.)
- Department of Physics, University of Crete, Heraklion, 70013 Crete, Greece
| | - Georgy A Shafeev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38, Vavilov street, 119991 Moscow, Russia, (E.V.B.)
- National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 31, Kashira Hwy, 115409 Moscow, Russia
| |
Collapse
|
9
|
Vervald AM, Burikov SA, Scherbakov AM, Kudryavtsev OS, Kalyagina NA, Vlasov II, Ekimov EA, Dolenko TA. Boron-Doped Nanodiamonds as Anticancer Agents: En Route to Hyperthermia/Thermoablation Therapy. ACS Biomater Sci Eng 2020; 6:4446-4453. [PMID: 33455177 DOI: 10.1021/acsbiomaterials.0c00505] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Local targeted "inside-out" hyperthermia of tumors via nanoparticles is able to sensitize tumor cells to chemotherapy, radiation therapy, gene therapy, immunotherapy, or other effects, significantly reducing the duration and intensity of treatment. In this article, new nanomaterials are proposed to be used as anticancer agents: boron-doped nanodiamonds with sizes of about 10 nm synthesized for the first time by the high-temperature high-pressure (HTHP) method. The heating ability of boron-doped nanodiamonds was investigated under different heating conditions in different environments: water, chicken egg white, and MCF-7 breast cancer cells. It was discovered that, with the same conversion of the absorbed energy into heat, the ability to heat the environment when excited at a wavelength of 808 nm of boron-doped nanodiamonds is much higher than that of detonation nanodiamonds. It was established that boron-doped nanodiamonds are extremely promising for carrying out hyperthermia and thermoablation of tumors.
Collapse
Affiliation(s)
- Alexey M Vervald
- Faculty of Physics, M. V. Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russia
| | - Sergey A Burikov
- Faculty of Physics, M. V. Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russia
| | - Alexander M Scherbakov
- N. N. Blokhin National Medical Research Center of Oncology, Kashirskoye sh. 24, Moscow 115522, Russia
| | - Oleg S Kudryavtsev
- A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, Vavilov Str. 38, Moscow 119991, Russia
| | - Nina A Kalyagina
- A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, Vavilov Str. 38, Moscow 119991, Russia
| | - Igor I Vlasov
- A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, Vavilov Str. 38, Moscow 119991, Russia
| | - Evgeny A Ekimov
- Institute for High Pressure Physics, Russian Academy of Sciences, Troitsk 142190, Russia
| | - Tatiana A Dolenko
- Faculty of Physics, M. V. Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russia
| |
Collapse
|
10
|
Laptinskiy KA, Burikov SA, Patsaeva SV, Vlasov II, Shenderova OA, Dolenko TA. Absolute luminescence quantum yield for nanosized carbon particles in water as a function of excitation wavelength. Spectrochim Acta A Mol Biomol Spectrosc 2020; 229:117879. [PMID: 31839574 DOI: 10.1016/j.saa.2019.117879] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 11/18/2019] [Accepted: 11/29/2019] [Indexed: 06/10/2023]
Abstract
The absolute luminescence quantum yield Q as a function of excitation wavelength λex in a wide spectral range 270-470 nm was measured for the first time for the group of carbon nanoparticles dispersed in water: carbon dots (CD), detonation nanodiamonds (DND), as well as detonation nanodiamonds decorated with carbon dots (CD-DND). The luminescence quantum yield for DND increased after functionalization; the CD-decorated DND demonstrated significantly higher Q values in the UV region of excitation. We found that the quantum yield for CD luminescence is 4-8 times higher than that for CD-DND luminescence, and 20 times higher than that for DND luminescence. Roughly three spectral regions can be distinguished within the Q(λex): below 330 nm, 330-390 nm and 390-470 nm. Conclusions are drawn about the number of chromophores of the studied nanoparticles and transfer of photoexcitation energy in the systems under consideration.
Collapse
Affiliation(s)
- Kirill A Laptinskiy
- Physical Department M.V. Lomonosov Moscow State University, Moscow, Leninskie Gory 1/2, 119991, Russia; Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Leninskie Gory 1/2, Moscow, Russia.
| | - Sergey A Burikov
- Physical Department M.V. Lomonosov Moscow State University, Moscow, Leninskie Gory 1/2, 119991, Russia
| | - Svetlana V Patsaeva
- Physical Department M.V. Lomonosov Moscow State University, Moscow, Leninskie Gory 1/2, 119991, Russia
| | - Igor I Vlasov
- A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Olga A Shenderova
- Adamas Nanotechnologies, Inc., 8100 Brownleigh Dr, Suit 120, Raleigh, NC 27617, USA
| | - Tatiana A Dolenko
- Physical Department M.V. Lomonosov Moscow State University, Moscow, Leninskie Gory 1/2, 119991, Russia
| |
Collapse
|
11
|
Shiryaev AA, Hinks JA, Marks NA, Greaves G, Valencia FJ, Donnelly SE, González RI, Kiwi M, Trigub AL, Bringa EM, Fogg JL, Vlasov II. Ion implantation in nanodiamonds: size effect and energy dependence. Sci Rep 2018; 8:5099. [PMID: 29572465 PMCID: PMC5865192 DOI: 10.1038/s41598-018-23434-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 03/05/2018] [Indexed: 11/29/2022] Open
Abstract
Nanoparticles are ubiquitous in nature and are increasingly important for technology. They are subject to bombardment by ionizing radiation in a diverse range of environments. In particular, nanodiamonds represent a variety of nanoparticles of significant fundamental and applied interest. Here we present a combined experimental and computational study of the behaviour of nanodiamonds under irradiation by xenon ions. Unexpectedly, we observed a pronounced size effect on the radiation resistance of the nanodiamonds: particles larger than 8 nm behave similarly to macroscopic diamond (i.e. characterized by high radiation resistance) whereas smaller particles can be completely destroyed by a single impact from an ion in a defined energy range. This latter observation is explained by extreme heating of the nanodiamonds by the penetrating ion. The obtained results are not limited to nanodiamonds, making them of interest for several fields, putting constraints on processes for the controlled modification of nanodiamonds, on the survival of dust in astrophysical environments, and on the behaviour of actinides released from nuclear waste into the environment.
Collapse
Affiliation(s)
- Andrey A Shiryaev
- Frumkin Institute of Physical Chemistry and Electrochemistry RAS, Leninsky pr .31 korp. 4, Moscow, 119071, Russia. .,Chemistry Dept., Lomonosov Moscow State University, Moscow, Russia.
| | - Jonathan A Hinks
- University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, United Kingdom
| | - Nigel A Marks
- Dept. of Physics and Astronomy, Curtin University, Perth, Australia
| | - Graeme Greaves
- University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, United Kingdom
| | - Felipe J Valencia
- Núcleo de Matemáticas, Física y Estadística, Facultad de Ciencias, Universidad Mayor, Chile.,Departamento de Física, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile.,Centro para el Desarrollo de la Nanociencia y la Nanotecnología, CEDENNA, Avda. Ecuador 3493, Santiago, 9170124, Chile
| | - Stephen E Donnelly
- University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, United Kingdom
| | - Rafael I González
- Centro para el Desarrollo de la Nanociencia y la Nanotecnología, CEDENNA, Avda. Ecuador 3493, Santiago, 9170124, Chile.,Centro de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor, Camino La Pirámide, 5750, Huechuraba, Santiago, Chile
| | - Miguel Kiwi
- Departamento de Física, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile.,Centro para el Desarrollo de la Nanociencia y la Nanotecnología, CEDENNA, Avda. Ecuador 3493, Santiago, 9170124, Chile
| | | | - Eduardo M Bringa
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, 5500, Argentina.,CONICET, Mendoza, Argentina
| | - Jason L Fogg
- Dept. of Physics and Astronomy, Curtin University, Perth, Australia
| | - Igor I Vlasov
- General Physics Institute RAS, Vavilova St. 38, Moscow, Russia.,National Research Nuclear University MEPhI, Moscow, 115409, Russia
| |
Collapse
|
12
|
Ekimov EA, Kudryavtsev OS, Khomich AA, Lebedev OI, Dolenko TA, Vlasov II. High-Pressure Synthesis of Boron-Doped Ultrasmall Diamonds from an Organic Compound. Adv Mater 2015; 27:5518-5522. [PMID: 26283646 DOI: 10.1002/adma.201502672] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 07/13/2015] [Indexed: 06/04/2023]
Abstract
The first application of the high-pressure-high-temperature (HPHT) technique for direct production of doped ultrasmall diamonds starting from a one-component organic precursor is reported. Heavily boron-doped diamond nanoparticles with a size below 10 nm are produced by HPHT treatment of 9-borabicyclo [3,3,1]nonane dimer molecules.
Collapse
Affiliation(s)
| | | | - Andrey A Khomich
- General Physics Institute, RAS, Vavilov Str. 38, Moscow, 119991, Russia
| | - Oleg I Lebedev
- Laboratoire CRISMAT, UMR 6508 CNRS-ENSICAEN, 6 Boulevard Marechal Juin, 14050, Caen, France
| | - Tatiana A Dolenko
- Physics Department, Moscow State University, Leninskie Gory 1, Moscow, 119991, Russia
| | - Igor I Vlasov
- General Physics Institute, RAS, Vavilov Str. 38, Moscow, 119991, Russia
- National Research Nuclear University MEPhI, Kashirskoe Road 31, Moscow, 115409, Russia
| |
Collapse
|
13
|
Prabhakar N, Näreoja T, von Haartman E, Şen Karaman D, Burikov SA, Dolenko TA, Deguchi T, Mamaeva V, Hänninen PE, Vlasov II, Shenderova OA, Rosenholm JM. Functionalization of graphene oxide nanostructures improves photoluminescence and facilitates their use as optical probes in preclinical imaging. Nanoscale 2015; 7:10410-10420. [PMID: 25998585 DOI: 10.1039/c5nr01403d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Recently reported photoluminescent nanographene oxides (nGOs), i.e. nanographene oxidised with a sulfuric/nitric acid mixture (SNOx method), have tuneable photoluminescence and are scalable, simple and fast to produce optical probes. This material belongs to the vast class of photoluminescent carbon nanostructures, including carbon dots, nanodiamonds (NDs), graphene quantum dots (GQDs), all of which demonstrate a variety of properties that are attractive for biomedical imaging such as low toxicity and stable photoluminescence. In this study, the nGOs were organically surface-modified with poly(ethylene glycol)-poly(ethylene imine) (PEG-PEI) copolymers tagged with folic acid as the affinity ligand for cancer cells expressing folate receptors. The functionalization enhanced both the cellular uptake and quantum efficiency of the photoluminescence as compared to non-modified nGOs. The nGOs exhibited an excitation dependent photoluminescence that facilitated their detection with a wide range of microscope configurations. The functionalized nGOs were non-toxic, they were retained in the stained cell population over a period of 8 days and they were distributed equally between daughter cells. We have evaluated their applicability in in vitro and in vivo (chicken embryo CAM) models to visualize and track migratory cancer cells. The good biocompatibility and easy detection of the functionalized nGOs suggest that they could address the limitations faced with quantum dots and organic fluorophores in long-term in vivo biomedical imaging.
Collapse
Affiliation(s)
- Neeraj Prabhakar
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, 20520 Turku, Finland.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Rosenholm JM, Vlasov II, Burikov SA, Dolenko TA, Shenderova OA. Nanodiamond-Based Composite Structures for Biomedical Imaging and Drug Delivery. J Nanosci Nanotechnol 2015; 15:959-971. [PMID: 26353602 DOI: 10.1166/jnn.2015.9742] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Nanodiamond particles are widely recognized candidates for biomedical applications due to their excellent biocompatibility, bright photoluminescence based on color centers and outstanding photostability. Recently, more complex architectures with a nanodiamond core and an external shell or nanostructure which provides synergistic benefits have been developed, and their feasibility for biomedical applications has been demonstrated. This review is aimed at summarizing recent achievements in the fabrication and functional demonstrations of nanodiamond-based composite structures, along with critical considerations that should be taken into account in the design of such structures from a biomedical point of view. A particular focus of the review is core/shell structures of nanodiamond surrounded by porous silica shells, which demonstrate a remarkable increase in drug loading efficiency; as well as nanodiamonds decorated with carbon dots, which have excellent potential as bioimaging probes. Other combinations are also considered, relying on the discussed inherent properties of the inorganic materials being integrated in a way to advance inorganic nanomedicine in the quest for better health-related nanotechnology.
Collapse
|
15
|
Vlasov II, Shiryaev AA, Rendler T, Steinert S, Lee SY, Antonov D, Vörös M, Jelezko F, Fisenko AV, Semjonova LF, Biskupek J, Kaiser U, Lebedev OI, Sildos I, Hemmer PR, Konov VI, Gali A, Wrachtrup J. Molecular-sized fluorescent nanodiamonds. Nat Nanotechnol 2014; 9:54-8. [PMID: 24317283 DOI: 10.1038/nnano.2013.255] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Accepted: 10/28/2013] [Indexed: 05/03/2023]
Abstract
Doping of carbon nanoparticles with impurity atoms is central to their application. However, doping has proven elusive for very small carbon nanoparticles because of their limited availability and a lack of fundamental understanding of impurity stability in such nanostructures. Here, we show that isolated diamond nanoparticles as small as 1.6 nm, comprising only ∼400 carbon atoms, are capable of housing stable photoluminescent colour centres, namely the silicon vacancy (SiV). Surprisingly, fluorescence from SiVs is stable over time, and few or only single colour centres are found per nanocrystal. We also observe size-dependent SiV emission supported by quantum-chemical simulation of SiV energy levels in small nanodiamonds. Our work opens the way to investigating the physics and chemistry of molecular-sized cubic carbon clusters and promises the application of ultrasmall non-perturbative fluorescent nanoparticles as markers in microscopy and sensing.
Collapse
Affiliation(s)
- Igor I Vlasov
- General Physics Institute RAS, Vavilov Street 38, 119991 Moscow, Russia
| | - Andrey A Shiryaev
- Institute of Physical Chemistry and Electrochemistry RAS, Leninsky pr. 31, 119071, Moscow, Russia
| | - Torsten Rendler
- 3rd Physical Institute and Research Center SCOPE, University of Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany
| | - Steffen Steinert
- 3rd Physical Institute and Research Center SCOPE, University of Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany
| | - Sang-Yun Lee
- 3rd Physical Institute and Research Center SCOPE, University of Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany
| | - Denis Antonov
- 3rd Physical Institute and Research Center SCOPE, University of Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany
| | - Márton Vörös
- Department of Atomic Physics, Budapest University of Technology and Economics, Budapest, Budafoki út 8, H-1111, Hungary
| | - Fedor Jelezko
- Institute for Quantum Optics, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Anatolii V Fisenko
- Vernadsky Institute of Geochemistry and Analytical Chemistry RAS, Kosygin Street 19, Moscow, Russia
| | - Lubov F Semjonova
- Vernadsky Institute of Geochemistry and Analytical Chemistry RAS, Kosygin Street 19, Moscow, Russia
| | - Johannes Biskupek
- Central Facility of Electron Microscopy, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Ute Kaiser
- Central Facility of Electron Microscopy, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Oleg I Lebedev
- Laboratoire CRISMAT, UMR 6508 CNRS ENSICAEN, 6 boulevard Marechal Juin, 14050 Caen, France
| | - Ilmo Sildos
- Institute of Physics, University of Tartu, Riia Street 142, 51014 Tartu, Estonia
| | - Philip R Hemmer
- Department of Electrical and Computer Engineering, 3128 Texas A&M University, College Station, Texas 77843-3128, USA
| | - Vitaly I Konov
- General Physics Institute RAS, Vavilov Street 38, 119991 Moscow, Russia
| | - Adam Gali
- 1] Department of Atomic Physics, Budapest University of Technology and Economics, Budapest, Budafoki út 8, H-1111, Hungary [2] Institute for Solid State Physics and Optics, Wigner Research Centre for Physics, Hungarian Academy of Sciences, PO Box 49, 1525 Budapest, Hungary
| | - Jörg Wrachtrup
- 3rd Physical Institute and Research Center SCOPE, University of Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany
| |
Collapse
|
16
|
Dolenko TA, Burikov SA, Vervald AM, Vlasov II, Dolenko SA, Laptinskiy KA, Rosenholm JM, Shenderova OA. Optical imaging of fluorescent carbon biomarkers using artificial neural networks. J Biomed Opt 2014; 19:117007. [PMID: 25396714 DOI: 10.1117/1.jbo.19.11.117007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 10/15/2014] [Indexed: 06/04/2023]
Abstract
The principle possibility of extraction of fluorescence of nanoparticles in the presence of background autofluorescence of a biological environment using neural network algorithms is demonstrated. It is shown that the methods used allow detection of carbon nanoparticles fluorescence against the background of the autofluorescence of egg white with a sufficiently low concentration detection threshold (not more than 2 μg/ml for carbon dots 3 μg/ml and for nanodiamonds). It was also shown that the use of the input data compression can further improve the accuracy of solving the inverse problem by 1.5 times.
Collapse
Affiliation(s)
- Tatiana A Dolenko
- M. V. Lomonosov Moscow State University, Department of Physics, Leninskie Gory 1/2, Moscow 119991, Russia
| | - Sergey A Burikov
- M. V. Lomonosov Moscow State University, Department of Physics, Leninskie Gory 1/2, Moscow 119991, Russia
| | - Alexey M Vervald
- M. V. Lomonosov Moscow State University, Department of Physics, Leninskie Gory 1/2, Moscow 119991, Russia
| | - Igor I Vlasov
- A. M. Prokhorov General Physics Institute, RAS, Vavilova Street 38, Moscow 119991, RussiacNational Research Nuclear University MEPhI, Kashirskoe Avenue 31, Moscow 115409, Russia
| | - Sergey A Dolenko
- M. V. Lomonosov Moscow State University, D. V. Skobeltsyn Institute of Nuclear Physics, Leninskie Gory 1/2, Moscow 119991, Russia
| | - Kirill A Laptinskiy
- M. V. Lomonosov Moscow State University, Department of Physics, Leninskie Gory 1/2, Moscow 119991, Russia
| | - Jessica M Rosenholm
- Abo Akademi University, Laboratory for Physical Chemistry, Porthansgatan 3, 20500 Turku, Finland
| | - Olga A Shenderova
- Adámas Nanotechnologies, Inc., Raleigh, North Carolina 27617, United States
| |
Collapse
|
17
|
Prabhakar N, Näreoja T, von Haartman E, Karaman DŞ, Jiang H, Koho S, Dolenko TA, Hänninen PE, Vlasov DI, Ralchenko VG, Hosomi S, Vlasov II, Sahlgren C, Rosenholm JM. Core-shell designs of photoluminescent nanodiamonds with porous silica coatings for bioimaging and drug delivery II: application. Nanoscale 2013; 5:3713-22. [PMID: 23493921 DOI: 10.1039/c3nr33926b] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Recent advances within materials science and its interdisciplinary applications in biomedicine have emphasized the potential of using a single multifunctional composite material for concurrent drug delivery and biomedical imaging. Here we present a novel composite material consisting of a photoluminescent nanodiamond (ND) core with a porous silica (SiO2) shell. This novel multifunctional probe serves as an alternative nanomaterial to address the existing problems with delivery and subsequent tracing of the particles. Whereas the unique optical properties of ND allows for long-term live cell imaging and tracking of cellular processes, mesoporous silica nanoparticles (MSNs) have proven to be efficient drug carriers. The advantages of both ND and MSNs were hereby integrated in the new composite material, ND@MSN. The optical properties provided by the ND core rendered the nanocomposite suitable for microscopy imaging in fluorescence and reflectance mode, as well as super-resolution microscopy as a STED label; whereas the porous silica coating provided efficient intracellular delivery capacity, especially in surface-functionalized form. This study serves as a demonstration how this novel nanomaterial can be exploited for both bioimaging and drug delivery for future theranostic applications.
Collapse
Affiliation(s)
- Neeraj Prabhakar
- Centre for Functional Materials, Laboratory for Physical Chemistry, Department of Natural Sciences, Åbo Akademi University, 20500 Turku, Finland
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
von Haartman E, Jiang H, Khomich AA, Zhang J, Burikov SA, Dolenko TA, Ruokolainen J, Gu H, Shenderova OA, Vlasov II, Rosenholm JM. Core–shell designs of photoluminescent nanodiamonds with porous silica coatings for bioimaging and drug delivery I: fabrication. J Mater Chem B 2013; 1:2358-2366. [DOI: 10.1039/c3tb20308e] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
19
|
Vlasov II, Shenderova O, Turner S, Lebedev OI, Basov AA, Sildos I, Rähn M, Shiryaev AA, Van Tendeloo G. Nitrogen and luminescent nitrogen-vacancy defects in detonation nanodiamond. Small 2010; 6:687-94. [PMID: 20108229 DOI: 10.1002/smll.200901587] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
An efficient method to investigate the microstructure and spatial distribution of nitrogen and nitrogen-vacancy (N-V) defects in detonation nanodiamond (DND) with primary particle sizes ranging from approximately 3 to 50 nm is presented. Detailed analysis reveals atomic nitrogen concentrations as high as 3 at% in 50% of diamond primary particles with sizes smaller than 6 nm. A non-uniform distribution of nitrogen within larger primary DND particles is also presented, indicating a preference for location within the defective central part or at twin boundaries. A photoluminescence (PL) spectrum with well-pronounced zero-phonon lines related to the N-V centers is demonstrated for the first time for electron-irradiated and annealed DND particles at continuous laser excitation. Combined Raman and PL analysis of DND crystallites dispersed on a Si substrate leads to the conclusion that the observed N-V luminescence originates from primary particles with sizes exceeding 30 nm. These findings demonstrate that by manipulation of the size/nitrogen content in DND there are prospects for mass production of nanodiamond photoemitters based on bright and stable luminescence from nitrogen-related defects.
Collapse
Affiliation(s)
- Igor I Vlasov
- General Physics Institute, Russian Academy of Sciences, 38 Vavilov Street, 119991 Moscow, Russia.
| | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Kulak AI, Kokorin AI, Meissner D, Ralchenko VG, Vlasov II, Kondratyuk AV, Kulak TI. Electrodeposition of nanostructured diamond-like films by oxidation of lithium acetylide. Electrochem commun 2003. [DOI: 10.1016/s1388-2481(03)00050-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|