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Ponomarev VA, Sheveyko AN, Kuptsov KA, Sukhanova EV, Popov ZI, Permyakova ES, Slukin PV, Ignatov SG, Ilnitskaya AS, Gloushankova NA, Timoshenko RV, Erofeev AS, Kuchmizhak AA, Shtansky DV. X-ray and UV Irradiation-Induced Reactive Oxygen Species Mediated Antibacterial Activity in Fe and Pt Nanoparticle-Decorated Si-Doped TiCaCON Films. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37888937 DOI: 10.1021/acsami.3c13242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Bone implants with biocompatibility and the ability to biomineralize and suppress infection are in high demand. The occurrence of early infections after implant placement often leads to repeated surgical treatment due to the ineffectiveness of antibiotic therapy. Therefore, an extremely attractive solution to this problem would be the ability to initiate bacterial protection of the implant by an external influence. Here, we present a proof-of-concept study based on the generation of reactive oxygen species (ROS) by the implant surface in response to X-ray irradiation, including through a layer of 3 mm adipose tissue, providing bactericidal protection. The effect of UV and X-ray irradiation of the implant surface on the ROS formation and the associated bactericidal activity was compared. The focus of our study was light-sensitive Si-doped TiCaCON films decorated with Fe and Pt nanoparticles (NPs) with photoinduced antibacterial activity mediated by ROS. In the visible and infrared range of 300-1600 nm, the films absorb more than 60% of the incident light. The high light absorption capacity of TiO2/TiC and TiO2/TiN heterostructures was demonstrated by density functional theory calculations. After short-term (5-10 s) low-dose X-ray irradiation, the films generated significantly more ROS than after UV illumination for 1 h. The Fe/TiCaCON-Si films showed enhanced biomineralization capacity, superior cytocompatibility, and excellent antibacterial activity against multidrug-resistant hospital Escherichia coli U20 and K261 strains and methicillin-resistant Staphylococcus aureus MW2 strain. Our study clearly demonstrates that oxidized Fe NPs are a promising alternative to the widely used Ag NPs in antibacterial coatings, and X-rays can potentially be used in ROS-regulating therapy to suppress inflammation in case of postimplant complications.
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Affiliation(s)
- Viktor A Ponomarev
- National University of Science and Technology "MISIS", Moscow 119049, Russia
| | | | | | | | - Zakhar I Popov
- Emanuel Institute of Biochemical Physics RAS, Moscow 199339, Russia
- Plekhanov Russian University of Economics, 36 Stremyanny per., Moscow 117997, Russia
| | | | - Pavel V Slukin
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia
| | - Sergei G Ignatov
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia
| | - Alla S Ilnitskaya
- N.N. Blokhin National Medical Research Center of Oncology, Kashirskoe Shosse 24, Moscow 115478, Russia
| | - Natalya A Gloushankova
- N.N. Blokhin National Medical Research Center of Oncology, Kashirskoe Shosse 24, Moscow 115478, Russia
| | - Roman V Timoshenko
- National University of Science and Technology "MISIS", Moscow 119049, Russia
| | - Alexander S Erofeev
- National University of Science and Technology "MISIS", Moscow 119049, Russia
| | - Aleksandr A Kuchmizhak
- Institute for Automation and Control Processes, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690041, Russia
- Pacific Quantum Center, Far Eastern Federal University, Vladivostok 690922, Russia
| | - Dmitry V Shtansky
- National University of Science and Technology "MISIS", Moscow 119049, Russia
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Polozhentsev OE, Pankin IA, Khodakova DV, Medvedev PV, Goncharova AS, Maksimov AY, Kit OI, Soldatov AV. Synthesis, Characterization and Biodistribution of GdF 3:Tb 3+@RB Nanocomposites. MATERIALS 2022; 15:ma15020569. [PMID: 35057287 PMCID: PMC8779613 DOI: 10.3390/ma15020569] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/28/2021] [Accepted: 12/31/2021] [Indexed: 01/04/2023]
Abstract
Herein we report the development of a nanocomposite for X-ray-induced photodynamic therapy (X-PDT) and computed tomography (CT) based on PEG-capped GdF3:Tb3+ scintillating nanoparticles conjugated with Rose Bengal photosensitizer via electrostatic interactions. Scintillating GdF3:Tb3+ nanoparticles were synthesized by a facile and cost-effective wet chemical precipitation method. All synthesized nanoparticles had an elongated "spindle-like" clustered morphology with an orthorhombic structure. The structure, particle size, and morphology were determined by transmission electron microscopy (TEM), X-ray diffraction (XRD), and dynamic light scattering (DLS) analysis. The presence of a polyethylene glycol (PEG) coating and Rose Bengal conjugates was proved by Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TG), and ultraviolet-visible (UV-vis) analysis. Upon X-ray irradiation of the colloidal PEG-capped GdF3:Tb3+-Rose Bengal nanocomposite solution, an efficient fluorescent resonant energy transfer between scintillating nanoparticles and Rose Bengal was detected. The biodistribution of the synthesized nanoparticles in mice after intravenous administration was studied by in vivo CT imaging.
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Affiliation(s)
- Oleg E. Polozhentsev
- The Smart Materials Research Institute, Southern Federal University, 344090 Rostov-on-Don, Russia; (I.A.P.); (P.V.M.); (A.V.S.)
- Correspondence:
| | - Ilia A. Pankin
- The Smart Materials Research Institute, Southern Federal University, 344090 Rostov-on-Don, Russia; (I.A.P.); (P.V.M.); (A.V.S.)
| | - Darya V. Khodakova
- National Medical Research Centre for Oncology of the Ministry of Health of Russia, 344037 Rostov-on-Don, Russia; (D.V.K.); (A.S.G.); (A.Y.M.); (O.I.K.)
| | - Pavel V. Medvedev
- The Smart Materials Research Institute, Southern Federal University, 344090 Rostov-on-Don, Russia; (I.A.P.); (P.V.M.); (A.V.S.)
| | - Anna S. Goncharova
- National Medical Research Centre for Oncology of the Ministry of Health of Russia, 344037 Rostov-on-Don, Russia; (D.V.K.); (A.S.G.); (A.Y.M.); (O.I.K.)
| | - Aleksey Yu. Maksimov
- National Medical Research Centre for Oncology of the Ministry of Health of Russia, 344037 Rostov-on-Don, Russia; (D.V.K.); (A.S.G.); (A.Y.M.); (O.I.K.)
| | - Oleg I. Kit
- National Medical Research Centre for Oncology of the Ministry of Health of Russia, 344037 Rostov-on-Don, Russia; (D.V.K.); (A.S.G.); (A.Y.M.); (O.I.K.)
| | - Alexander V. Soldatov
- The Smart Materials Research Institute, Southern Federal University, 344090 Rostov-on-Don, Russia; (I.A.P.); (P.V.M.); (A.V.S.)
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