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Kaur G, Kaur V, Kaur N, Kaur C, Sood K, Shanavas A, Sen T. Design of Silica@Au Hybrid Nanostars for Enhanced SERS and Photothermal Effect. Chemphyschem 2023; 24:e202200809. [PMID: 37515550 DOI: 10.1002/cphc.202200809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 04/21/2023] [Accepted: 07/25/2023] [Indexed: 07/31/2023]
Abstract
Core-shell nanostructures of silicon oxide@noble metal have drawn a lot of interest due to their distinctive characteristics and minimal toxicity with remarkable biocompatibility. Due to the unique property of localized surface plasmon resonance (LSPR), plasmonic nanoparticles are being used as surface-enhanced Raman scattering (SERS) based detection of pollutants and photothermal (PT) agents in cancer therapy. Herein, we demonstrate the synthesis of multifunctional silica core - Au nanostars shell (SiO2 @Au NSs) nanostructures using surfactant free aqueous phase method. The SERS performance of the as-synthesized anisotropic core-shell NSs was examined using Rhodamine B (RhB) dye as a Raman probe and resulted in strong enhancement factor of 1.37×106 . Furthermore, SiO2 @Au NSs were also employed for PT killing of breast cancer cells and they exhibited a concentration-dependent increase in the photothermal effect. The SiO2 @Au NSs show remarkable photothermal conversion efficiency of up to 72 % which is unprecedented. As an outcome, our synthesized NIR active SiO2 @Au NSs are of pivotal importance to have their dual applications in SERS enhancement and PT effect.
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Affiliation(s)
- Gagandeep Kaur
- Institute of Nano Science and Technology, Sector- 81, Knowledge city, 140306, Mohali, India
| | - Vishaldeep Kaur
- Institute of Nano Science and Technology, Sector- 81, Knowledge city, 140306, Mohali, India
| | - Navneet Kaur
- Institute of Nano Science and Technology, Sector- 81, Knowledge city, 140306, Mohali, India
| | - Charanleen Kaur
- Institute of Nano Science and Technology, Sector- 81, Knowledge city, 140306, Mohali, India
| | - Kritika Sood
- Institute of Nano Science and Technology, Sector- 81, Knowledge city, 140306, Mohali, India
| | - Asifkhan Shanavas
- Institute of Nano Science and Technology, Sector- 81, Knowledge city, 140306, Mohali, India
| | - Tapasi Sen
- Institute of Nano Science and Technology, Sector- 81, Knowledge city, 140306, Mohali, India
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2
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Brazhe NA, Nikelshparg EI, Baizhumanov AA, Grivennikova VG, Semenova AA, Novikov SM, Volkov VS, Arsenin AV, Yakubovsky DI, Evlyukhin AB, Bochkova ZV, Goodilin EA, Maksimov GV, Sosnovtseva O, Rubin AB. SERS uncovers the link between conformation of cytochrome c heme and mitochondrial membrane potential. Free Radic Biol Med 2023; 196:133-144. [PMID: 36649901 DOI: 10.1016/j.freeradbiomed.2023.01.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 01/06/2023] [Accepted: 01/11/2023] [Indexed: 01/15/2023]
Abstract
The balance between the mitochondrial respiratory chain activity and the cell's needs in ATP ensures optimal cellular function. Cytochrome c is an essential component of the electron transport chain (ETC), which regulates ETC activity, oxygen consumption, ATP synthesis and can initiate apoptosis. The impact of conformational changes in cytochrome c on its function is not understood for the lack of access to these changes in intact mitochondria. We have developed a novel sensor that uses unique properties of label-free surface-enhanced Raman spectroscopy (SERS) to identify conformational changes in heme of cytochrome c and to elucidate their role in functioning mitochondria. We have verified that molecule bond vibrations assessed by SERS are a reliable indicator of the heme conformation during changes in the inner mitochondrial membrane potential and ETC activity. We have demonstrated that cytochrome c heme reversibly switches between planar and ruffled conformations in response to the inner mitochondrial membrane potential (ΔΨ) and H+ concentration in the intermembrane space. This regulates the efficiency of the mitochondrial respiratory chain, thus, adjusting the mitochondrial respiration to the cell's consumption of ATP and the overall activity. We have found that under hypertensive conditions cytochrome c heme loses its sensitivity to ΔΨ that can affect the regulation of ETC activity. The ability of the proposed SERS-based sensor to track mitochondrial function opens broad perspectives in cell bioenergetics.
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Affiliation(s)
- Nadezda A Brazhe
- Department of Biophysics, Biological Faculty, Moscow State University, 119234, Russia.
| | - Evelina I Nikelshparg
- Department of Biophysics, Biological Faculty, Moscow State University, 119234, Russia
| | - Adil A Baizhumanov
- Department of Biophysics, Biological Faculty, Moscow State University, 119234, Russia
| | - Vera G Grivennikova
- Department of Biochemistry, Biological Faculty, Moscow State University, 119234, Russia
| | - Anna A Semenova
- Faculty of Materials Sciences, Moscow State University, 119899, Russia
| | - Sergey M Novikov
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, 141701, Russia
| | - Valentyn S Volkov
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, 141701, Russia; GrapheneTek, Skolkovo Innovation Center, Moscow, 121205, Russia
| | - Aleksey V Arsenin
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, 141701, Russia
| | - Dmitry I Yakubovsky
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, 141701, Russia
| | - Andrey B Evlyukhin
- Institute of Quantum Optics, Leibniz Universität Hannover, Hannover, 30167, Germany
| | - Zhanna V Bochkova
- Department of Biophysics, Biological Faculty, Moscow State University, 119234, Russia
| | - Eugene A Goodilin
- Faculty of Materials Sciences, Moscow State University, 119899, Russia; Faculty of Chemistry, Moscow State University, 119991, Russia; Kurnakov Institute of General and Inorganic Chemistry RAS, Moscow, 119071, Russia
| | - Georgy V Maksimov
- Department of Biophysics, Biological Faculty, Moscow State University, 119234, Russia; Federal State Autonomous Educational Institution of Higher Education "National Research Technological University "MISiS", Moscow, 119049, Russia
| | - Olga Sosnovtseva
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, DK, 2200, Denmark.
| | - Andrey B Rubin
- Department of Biophysics, Biological Faculty, Moscow State University, 119234, Russia
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3
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Eremina OE, Kapitanova OO, Medved'ko AV, Zelenetskaya AS, Egorova BV, Shekhovtsova TN, Vatsadze SZ, Veselova IA. Plier Ligands for Trapping Neurotransmitters into Complexes for Sensitive Analysis by SERS Spectroscopy. BIOSENSORS 2023; 13:bios13010124. [PMID: 36671959 PMCID: PMC9856153 DOI: 10.3390/bios13010124] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 05/28/2023]
Abstract
Catecholamines-dopamine, noradrenaline and adrenaline are important biomarkers of neurotransmitter metabolism, indicating neuroendocrine tumors and neurodegenerative diseases. Surface-enhanced Raman spectroscopy (SERS) is a promising analytical technique with unprecedented multiplexing capabilities. However, not all important analytes exhibit strong SERS signals on stable and robust nanostructured substrates. In this work, we propose a novel indicator system based on the formation of mixed ligand complexes with bispidine-based bis-azole ligands which can serve as pliers to trap Cu(II) ions and stabilize its complexes with catecholamines. Four synthesized ligands with different functional groups: carboxyl, amino, benzyl, and methoxybenzyl, were applied for forming stable complexes to shift maximum absorbance of catecholamines from the ultraviolet region to 570-600 nm. A new absorbance band in the visible range resonates with the local surface plasmon resonance (LSPR) band of metal nanoparticles and most used laser wavelengths. This match allowed use of Molecular Immobilization and Resonant Raman Amplification by Complex-Loaded Enhancers (MIRRACLE) methodology to measure intense Raman signals on a nanostructured silver-based SERS-active substrate. The synthesized plier-like ligands fixed and stabilized catecholamine complexes with Cu(II) on the SERS sensor surface, which facilitated the determination of dopamine in a 3.2 × 10-12-1 × 10-8 M concentration range.
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Affiliation(s)
- Olga E. Eremina
- Chemistry Department, Moscow State University, Moscow 119991, Russia
| | | | - Alexei V. Medved'ko
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia
| | | | | | | | - Sergey Z. Vatsadze
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia
| | - Irina A. Veselova
- Chemistry Department, Moscow State University, Moscow 119991, Russia
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4
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Wang D, Zhu J, Hui B, Gong Z, Fan M. Halogen ions modified Ag NPs for ultrasensitive SERS detection of Polycyclic aromatic hydrocarbons. LUMINESCENCE 2022; 37:1541-1546. [PMID: 35816184 DOI: 10.1002/bio.4329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/07/2022] [Accepted: 07/07/2022] [Indexed: 11/06/2022]
Abstract
Rapid ultrasensitive detection of trace polycyclic aromatic hydrocarbons (PAHs) is essential and significant for pollution control due to their hazard, persistence, and the wide distribution in the environment. Therefore, rapid detection of PAHs is critical for controlling pollution and protecting the ecology. Considering the advantages of Surface-enhanced Raman spectroscopy (SERS), a simple and reliable SERS method was proposed for detecting PAHs in water in this work. Three chemicals, namely NaCl, KBr, and KI, were chosen to modify Ag NPs for phenanthrene (Phe) detection, and Ag NPs modified with KBr (Ag-BrNPs) show the best SERS response. The mixing sequence and the concentration of KBr were optimized. The addition order of mixing KBr and Ag NPs before Phe solution is best, and the optimal concentration of KBr was 20 mM. Under the optimal condition, the limit of quantification for Phe, pyrene (Pyr), and anthracene (Ant) were 10-6 M, 10-7 M, and 10-7 M, respectively. Mixed PAHs (Phe, Pyr, and Ant) in spiked water samples have been identified and quantified successfully. The proposed method has good application prospects in environmental pollution monitoring.
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Affiliation(s)
- Dongmei Wang
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Jingyi Zhu
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Binyu Hui
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Zhengjun Gong
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Meikun Fan
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
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Nikelshparg EI, Baizhumanov AA, Bochkova ZV, Novikov SM, Yakubovsky DI, Arsenin AV, Volkov VS, Goodilin EA, Semenova AA, Sosnovtseva O, Maksimov GV, Brazhe NA. Detection of Hypertension-Induced Changes in Erythrocytes by SERS Nanosensors. BIOSENSORS 2022; 12:32. [PMID: 35049660 PMCID: PMC8773528 DOI: 10.3390/bios12010032] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/04/2022] [Accepted: 01/05/2022] [Indexed: 05/14/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) is a promising tool that can be used in the detection of molecular changes triggered by disease development. Cardiovascular diseases (CVDs) are caused by multiple pathologies originating at the cellular level. The identification of these deteriorations can provide a better understanding of CVD mechanisms, and the monitoring of the identified molecular changes can be employed in the development of novel biosensor tools for early diagnostics. We applied plasmonic SERS nanosensors to assess changes in the properties of erythrocytes under normotensive and hypertensive conditions in the animal model. We found that spontaneous hypertension in rats leads (i) to a decrease in the erythrocyte plasma membrane fluidity and (ii) to a decrease in the mobility of the heme of the membrane-bound hemoglobin. We identified SERS parameters that can be used to detect pathological changes in the plasma membrane and submembrane region of erythrocytes.
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Affiliation(s)
- Evelina I. Nikelshparg
- Department of Biophysics, Biological Faculty, Moscow State University, 119991 Moscow, Russia; (A.A.B.); (Z.V.B.); (G.V.M.)
| | - Adil A. Baizhumanov
- Department of Biophysics, Biological Faculty, Moscow State University, 119991 Moscow, Russia; (A.A.B.); (Z.V.B.); (G.V.M.)
| | - Zhanna V. Bochkova
- Department of Biophysics, Biological Faculty, Moscow State University, 119991 Moscow, Russia; (A.A.B.); (Z.V.B.); (G.V.M.)
| | - Sergey M. Novikov
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology (MIPT), 141700 Dolgoprudny, Russia; (S.M.N.); (D.I.Y.); (A.V.A.); (V.S.V.)
| | - Dmitry I. Yakubovsky
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology (MIPT), 141700 Dolgoprudny, Russia; (S.M.N.); (D.I.Y.); (A.V.A.); (V.S.V.)
| | - Aleksey V. Arsenin
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology (MIPT), 141700 Dolgoprudny, Russia; (S.M.N.); (D.I.Y.); (A.V.A.); (V.S.V.)
| | - Valentyn S. Volkov
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology (MIPT), 141700 Dolgoprudny, Russia; (S.M.N.); (D.I.Y.); (A.V.A.); (V.S.V.)
| | - Eugene A. Goodilin
- Faculty of Materials Sciences, Moscow State University, 119991 Moscow, Russia; (E.A.G.); (A.A.S.)
- Department of Chemistry, Moscow State University, 119991 Moscow, Russia
| | - Anna A. Semenova
- Faculty of Materials Sciences, Moscow State University, 119991 Moscow, Russia; (E.A.G.); (A.A.S.)
| | - Olga Sosnovtseva
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark;
| | - Georgy V. Maksimov
- Department of Biophysics, Biological Faculty, Moscow State University, 119991 Moscow, Russia; (A.A.B.); (Z.V.B.); (G.V.M.)
- Department of Physical Material Engineering, Federal State Autonomous Educational Institution of Higher Education “National Research Technological University “MISiS”, 119049 Moscow, Russia
| | - Nadezda A. Brazhe
- Department of Biophysics, Biological Faculty, Moscow State University, 119991 Moscow, Russia; (A.A.B.); (Z.V.B.); (G.V.M.)
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6
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Eremina OE, Sergeeva EA, Ferree MV, Shekhovtsova TN, Goodilin EA, Veselova IA. Dual-Purpose SERS Sensor for Selective Determination of Polycyclic Aromatic Compounds via Electron Donor-Acceptor Traps. ACS Sens 2021; 6:1057-1066. [PMID: 33529008 DOI: 10.1021/acssensors.0c02294] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Toxic, carcinogenic, and mutagenic properties of polycyclic aromatic hydrocarbons (PAHs) and environmental pollution caused by polycyclic aromatic sulfur heterocycles (PASHs) postulate the importance of their selective and sensitive determination in environmental and oil fuel samples. Surface-enhanced Raman spectroscopy (SERS) opens up an avenue toward multiplex analysis of complex mixtures, however not every molecule gives high enhancement factors and, thus, cannot be reliably detected via SERS. However, the sensitivity can be drastically increased by additional resonant enhancement as a result of the analyte absorption band overlapping with the surface plasmon band of nanoparticles (NPs) and the laser excitation wavelength. Using this idea, we developed a dual-purpose SERS sensor based on trapping the target PAHs and PASHs into colored charge-transfer complexes (CTCs) with selected organic π-acceptor molecules on the surface of AgNPs. Studying, computing, and then comparing stability constants of the formed CTC served as a powerful explanation and prediction tool for a wise choice of π-acceptor indicator systems for the further silver surface modification. Moreover, we show that CTC formation can be effectively utilized for increasing both selectivity and sensitivity by simple liquid-liquid extraction prior to SERS measurements. For the first time, the dual-purpose SERS sensor allowed determination of two different classes of polycyclic aromatic fuel components down to 10 nM concentration, lower than that restricted by the ASTM regulation, and demonstrated multi-purpose capabilities of the developed approach.
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Affiliation(s)
- Olga E. Eremina
- Chemistry Department, Lomonosov Moscow State University, 1 Lenin Hills, Moscow 119991, Russia
| | - Elena A. Sergeeva
- Chemistry Department, Lomonosov Moscow State University, 1 Lenin Hills, Moscow 119991, Russia
| | - Mariia V. Ferree
- Chemistry Department, Lomonosov Moscow State University, 1 Lenin Hills, Moscow 119991, Russia
| | - Tatyana N. Shekhovtsova
- Chemistry Department, Lomonosov Moscow State University, 1 Lenin Hills, Moscow 119991, Russia
| | - Eugene A. Goodilin
- Chemistry Department, Lomonosov Moscow State University, 1 Lenin Hills, Moscow 119991, Russia
- Faculty of Materials Science, Lomonosov Moscow State University, 1 Lenin Hills, Moscow 119991, Russia
| | - Irina A. Veselova
- Chemistry Department, Lomonosov Moscow State University, 1 Lenin Hills, Moscow 119991, Russia
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7
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Zienkiewicz-Strzałka M, Deryło-Marczewska A. Small AgNP in the Biopolymer Nanocomposite System. Int J Mol Sci 2020; 21:ijms21249388. [PMID: 33317218 PMCID: PMC7763337 DOI: 10.3390/ijms21249388] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/06/2020] [Accepted: 12/07/2020] [Indexed: 12/25/2022] Open
Abstract
In this work, ultra-small and stable silver nanoparticles (AgNP) on chitosan biopolymer (BP/AgP) were prepared by in situ reduction of the diamminesilver(I) complex ([Ag(NH3)2]+) to create a biostatic membrane system. The small AgNP (3 nm) as a stable source of silver ions, their crystal form, and homogeneous distribution in the whole solid membrane were confirmed by transmission electron microscopy (TEM), scanning electron microscopy (SEM), and atomic force microscopy (AFM). The X-ray photoelectron spectroscopy (XPS) and Auger analysis were applied to investigate the elemental composition, concentration, and chemical state of surface atoms. It was found that ultra-small metallic nanoparticles might form a steady source of silver ions and enhance the biostatic properties of solid membranes. Ultra-small AgNP with disturbed electronic structure and plasmonic properties may generate interaction between amine groups of the biopolymer for improving the homogeneity of the nanometallic layer. In this work, the significant differences between the typical way (deposition of ex-situ-prepared AgNP) and the proposed in-situ synthesis approach were determined. The improved thermal stability (by thermogravimetry and differential scanning calorimetry (TG/DSC) analysis) for BP/AgP was observed and explained by the presence of the protective layer of a low-molecular silver phase. Finally, the antibacterial activity of the BP/AgP nanocomposite was tested using selected bacteria biofilms. The grafted membrane showed clear inhibition properties by destruction and multiple damages of bacteria cells. The possible mechanisms of biocidal activity were discussed, and the investigation of the AgNP influence on the bacteria body was illustrated by AFM measurements. The results obtained concluded that the biopolymer membrane properties were significantly improved by the integration with ultra-small Ag nanoparticles, which added value to its applications as a biostatic membrane system for filtration and separation issues.
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Semenova AA, Veselova IA, Brazhe NA, Shevelkov AV, Goodilin EA. Soft chemistry of pure silver as unique plasmonic metal of the Periodic Table of Elements. PURE APPL CHEM 2020. [DOI: 10.1515/pac-2020-0104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The International Year of The Periodic Table of Chemical Elements revealed that the Table remains both a deeply fundamental paradigm for various branches of chemistry and a universal practical tool for predictable design of new materials. Silver is a notable “nanoelement” particularly known by its plasmonic properties. A key advantage of this metal is an easily achievable morphological variety of nanostructured materials. This element represents a research branch of precise engineering of shapes and sizes of nanoparticle ensembles and smart hierarchic nanostructures. In the review, unique features of silver are discussed with respect to the development of novel analytical methods for forthcoming applications of surface-enhanced Raman spectroscopy (SERS) in ecology, biology and medicine.
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Affiliation(s)
- Anna A. Semenova
- Department of Materials Science , Lomonosov Moscow State University , Moscow, 119991 , Russia
| | - Irina A. Veselova
- Department of Chemistry , Lomonosov Moscow State University , Moscow, 119991 , Russia
| | - Nadezhda A. Brazhe
- Department of Biology , Lomonosov Moscow State University , Moscow, 119991 , Russia
| | - Andrei V. Shevelkov
- Department of Chemistry , Lomonosov Moscow State University , Moscow, 119991 , Russia
| | - Eugene A. Goodilin
- Department of Materials Science and Department of Chemistry , Lomonosov Moscow State University , Moscow, 119991 , Russia
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9
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Ambroziak R, Krajczewski J, Pisarek M, Kudelski A. Immobilization of Cubic Silver Plasmonic Nanoparticles on TiO 2 Nanotubes, Reducing the Coffee Ring Effect in Surface-Enhanced Raman Spectroscopy Applications. ACS OMEGA 2020; 5:13963-13972. [PMID: 32566863 PMCID: PMC7301603 DOI: 10.1021/acsomega.0c01356] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 05/14/2020] [Indexed: 06/11/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) substrates prepared by immobilizing silver cubic nanoparticles (Ag CNPs) on titanium dioxide nanotubes (TiO2 NTs) were used for investigations of the "coffee ring" (CR) effect and its impact on spatial reproducibility of measured Raman signals in comparison with flat surfaces (Ti and Si) where the CR effect is usually significant. The immobilization of nanoparticles from drops, which is a very simple technique, usually does not permit a homogeneous distribution of deposited NPs because there is significant accumulation of the material at the boundary of the drying area. Our proposed SERS substrates effectively reduced the CR effect through the use of well-ordered nanostructures where a smaller number of Ag CNPs were transferred to the boundary region. It was not only the surface morphology that was important but also the physicochemical properties of TiO2 NTs, such as wettability. The wettability of the prepared samples was determined by measuring the static water contact angle (WCA), and the chemical composition near the boundary of the drying area was studied using Auger electron spectroscopy. The morphology of the substrates obtained was characterized using scanning electron microscopy. Our studies showed that reducing the coffee ring effect increased the spatial reproducibility of the measured SERS signal in the area of the deposited CNPs. Therefore, the platforms obtained may be very useful in commercial SERS applications.
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Affiliation(s)
- Robert Ambroziak
- Faculty
of Chemistry, University of Warsaw, Pasteur Str. 1, 02-093 Warsaw, Poland
| | - Jan Krajczewski
- Faculty
of Chemistry, University of Warsaw, Pasteur Str. 1, 02-093 Warsaw, Poland
| | - Marcin Pisarek
- Institute
of Physical Chemistry, Polish Academy of Sciences, Laboratory of Surface
Analysis, Kasprzaka Str. 44/52, 01-224 Warsaw, Poland
| | - Andrzej Kudelski
- Faculty
of Chemistry, University of Warsaw, Pasteur Str. 1, 02-093 Warsaw, Poland
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10
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Eremina OE, Kapitanova OO, Goodilin EA, Veselova IA. Silver-chitosan nanocomposite as a plasmonic platform for SERS sensing of polyaromatic sulfur heterocycles in oil fuel. NANOTECHNOLOGY 2020; 31:225503. [PMID: 32050183 DOI: 10.1088/1361-6528/ab758f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Herein, a silver-chitosan nanocomposite for application in surface enhanced Raman spectroscopy (SERS) sensing was proposed. It was shown that optically transparent chitosan coatings with 0.8 μm thickness allow penetration of target analytes to silver nanoparticles and the analysis in both polar and nonpolar solvents. Under the chosen conditions, chitosan formed continuously smooth films and coatings stabilizing rough nanostructured metallic surfaces and served as a suitable matrix for immobilization, uniform spreading, and preconcentration of the analytes. Polycyclic aromatic sulfur heterocycles were chosen as target analytes being one of the most important fuel quality markers, hazardous components, and the hardest-to-remove impurities. For the most effective immobilization and even distribution of the analytes onto a nanostructured metallic surface, an additional polymer layer of chitosan was found to be needed. The presence of thin films of chitosan resulted in higher reproducibility of SERS spectra as compared to bare nanostructured silver substrates. Additionally, the developed nanocomposite SERS sensors provided the rapid determination of dibenzothiophene and its derivatives in isooctane with the threshold of detection better than 0.1 μM. This approach was successfully applied in the analysis of real fuel samples and the results agreed well with independently measured FTIR and GC-MS data.
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Affiliation(s)
- Olga E Eremina
- Faculty of Chemistry, Moscow State University, Leninskie gory, Moscow, 119991, Russia
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Abstract
This is a review of relevant Raman spectroscopy (RS) techniques and their use in structural biology, biophysics, cells, and tissues imaging towards development of various medical diagnostic tools, drug design, and other medical applications. Classical and contemporary structural studies of different water-soluble and membrane proteins, DNA, RNA, and their interactions and behavior in different systems were analyzed in terms of applicability of RS techniques and their complementarity to other corresponding methods. We show that RS is a powerful method that links the fundamental structural biology and its medical applications in cancer, cardiovascular, neurodegenerative, atherosclerotic, and other diseases. In particular, the key roles of RS in modern technologies of structure-based drug design are the detection and imaging of membrane protein microcrystals with the help of coherent anti-Stokes Raman scattering (CARS), which would help to further the development of protein structural crystallography and would result in a number of novel high-resolution structures of membrane proteins—drug targets; and, structural studies of photoactive membrane proteins (rhodopsins, photoreceptors, etc.) for the development of new optogenetic tools. Physical background and biomedical applications of spontaneous, stimulated, resonant, and surface- and tip-enhanced RS are also discussed. All of these techniques have been extensively developed during recent several decades. A number of interesting applications of CARS, resonant, and surface-enhanced Raman spectroscopy methods are also discussed.
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12
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Nikelshparg EI, Grivennikova VG, Baizhumanov AA, Semenova AA, Sosnovtseva V, Goodilin EA, Maksimov GV, Brazhe NA. Probing lipids in biological membranes using SERS. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.11.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Juneja S, Bhattacharya J. Coffee ring effect assisted improved S. aureus screening on a physically restrained gold nanoflower enriched SERS substrate. Colloids Surf B Biointerfaces 2019; 182:110349. [DOI: 10.1016/j.colsurfb.2019.110349] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 07/05/2019] [Accepted: 07/06/2019] [Indexed: 12/29/2022]
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15
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Semenova AA, Savilov SV, Baranchikov AE, Ivanov VK, Goodilin EA. Skeleton pseudomorphs of nanostructured silver for the surface-enhanced Raman spectroscopy. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Hierarchical structure of SERS substrates possessing the silver ring morphology. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.05.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Goodilin E, Semenova A, Eremina O, Brazhe N, Goodilinа E, Danzanova T, Maksimov G, Veselova I. Promising methods for noninvasive medical diagnosis based on the use of nanoparticles: surface-enhanced raman spectroscopy in the study of cells, cell organelles and neurotransmitter metabolism markers. BULLETIN OF RUSSIAN STATE MEDICAL UNIVERSITY 2018. [DOI: 10.24075/brsmu.2018.077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Application of advances in nanomedicine and materials science to medical diagnostics is a promising area of research. Surface-enhanced Raman spectroscopy (SERS) is an innovative analytical method that exploits noble metal nanoparticles to noninvasively study cells, cell organelles and protein molecules. Below, we summarize the literature on the methods for early clinical diagnosis of some neurodegenerative and neuroendocrine diseases. We discuss the specifics, advantages and limitations of different diagnostic techniques based on the use of low- and high molecular weight biomarkers. We talk about the prospects of optical methods for rapid diagnosis of neurotransmitter metabolism disorders. Special attention is paid to new approaches to devising optical systems that expand the analytical potential of SERS, the tool that demonstrates remarkable sensitivity, selectivity and reproducibility of the results in determining target analytes in complex biological matrices.
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Affiliation(s)
- E.A. Goodilin
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow; Faculty of Materials Science, Lomonosov Moscow State University, Moscow
| | - A.A. Semenova
- Faculty of Materials Science, Lomonosov Moscow State University, Moscow
| | - O.E. Eremina
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow
| | - N.A. Brazhe
- Faculty of Biology, Lomonosov Moscow State University, Moscow
| | | | | | - G.V. Maksimov
- Faculty of Biology, Lomonosov Moscow State University, Moscow
| | - I.A. Veselova
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow
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Eremina OE, Semenova AA, Sergeeva EA, Brazhe NA, Maksimov GV, Shekhovtsova TN, Goodilin EA, Veselova IA. Surface-enhanced Raman spectroscopy in modern chemical analysis: advances and prospects. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4804] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Yu Polyakov A, Zak A, Tenne R, Goodilin EA, Solntsev KA. Nanocomposites based on tubular and onion nanostructures of molybdenum and tungsten disulfides: inorganic design, functional properties and applications. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4798] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The review concerns the development and the state-of-the-art in studies on the surface modification methods aimed at fabricating promising nanocomposites based on multilayer inorganic tubular and onion (fullerene-like) MoS2 and WS2 nanostructures. The synthetic details and structural features of these materials are considered. Considerable attention is paid to targeted functionalization of molybdenum and tungsten disulfide nanostructures and to fundamental principles that underlie their ability to chemical interactions. The functional properties and applications of the obtained materials are described.
The bibliography includes 183 references.
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Eremina OE, Sidorov AV, Shekhovtsova TN, Goodilin EA, Veselova IA. Novel Multilayer Nanostructured Materials for Recognition of Polycyclic Aromatic Sulfur Pollutants and Express Analysis of Fuel Quality and Environmental Health by Surface Enhanced Raman Spectroscopy. ACS APPLIED MATERIALS & INTERFACES 2017; 9:15058-15067. [PMID: 28402098 DOI: 10.1021/acsami.7b02018] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A novel concept of advanced SERS (surface enhanced Raman spectroscopy) planar sensors is suggested for fast analysis of sulfur-containing hazardous oil components and persistent pollutants. The main advantage of the proposed sensors is the utilization of an additional preconcentrating layer of optically transparent chitosan gel, which is chemically modified with appropriate π-acceptor compounds to selectively form charge-transfer complexes (CTCs) at the interface with nanostructured silver coatings. The CTCs shift absorption bands of polycyclic aromatic sulfur heterocycles (PASHs) and other important analytes in a controllable way and thus provide a surplus enhancement of vibration modes due to resonant Raman scattering. This novel indicator system provides multiplex determination of PASHs in different forms in a small volume of oil without any tedious sample pretreatment steps. This approach opens new possibilities of increasing either spectral and concentration sensitivity or specificity of SERS-based sensors, allowing for new developments in the fields of ecology, advanced fuel analysis, and other prospective applications.
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Affiliation(s)
- Olga E Eremina
- Faculty of Chemistry, Moscow State University , Lenin Hills, 1-3, Moscow 119991, Russia
| | - Alexander V Sidorov
- Faculty of Materials Science, Moscow State University , Lenin Hills, 1-73, Moscow 119991, Russia
| | | | - Eugene A Goodilin
- Faculty of Chemistry, Moscow State University , Lenin Hills, 1-3, Moscow 119991, Russia
- Faculty of Materials Science, Moscow State University , Lenin Hills, 1-73, Moscow 119991, Russia
- Institute of General and Inorganic Chemistry , Leninskii prosp., 31, Moscow 119071, Russia
| | - Irina A Veselova
- Faculty of Chemistry, Moscow State University , Lenin Hills, 1-3, Moscow 119991, Russia
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21
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Farrell ME, Strobbia P, Pellegrino PM, Cullum B. Surface regeneration and signal increase in surface-enhanced Raman scattering substrates. APPLIED OPTICS 2017; 56:B198-B213. [PMID: 28157898 DOI: 10.1364/ao.56.00b198] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Regenerated surface-enhanced Raman scattering (SERS) substrates allow users the ability to not only reuse sensing surfaces, but also tailor them to the sensing application needs (wavelength of the available laser, plasmon band matching). In this review, we discuss the development of SERS substrates for response to emerging threats and some of our collaborative efforts to improve on the use of commercially available substrate surfaces. Thus, we are able to extend the use of these substrates to broader Army needs (like emerging threat response).
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22
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Semenova AA, Semenov AP, Gudilina EA, Sinyukova GT, Brazhe NA, Maksimov GV, Goodilin EA. Nanostructured silver materials for noninvasive medical diagnostics by surface-enhanced Raman spectroscopy. MENDELEEV COMMUNICATIONS 2016. [DOI: 10.1016/j.mencom.2016.04.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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23
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Volodina MO, Polyakov AY, Sidorov AV, Grigorieva AV, Eremina EA, Savilov SV, Goodilin EA. One-pot preparation of SERS nanocomposites of silver and graphene oxide with tunable properties. MENDELEEV COMMUNICATIONS 2016. [DOI: 10.1016/j.mencom.2016.05.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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24
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Yorov KE, Sidorov AV, Polyakov AY, Sukhorukova IV, Shtansky DV, Grünert W, Grigorieva AV. Correction: Inkjet printing of silver rainbow colloids for SERS chips with polychromatic sensitivity. RSC Adv 2016. [DOI: 10.1039/c6ra90035f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Correction for ‘Inkjet printing of silver rainbow colloids for SERS chips with polychromatic sensitivity’ by K. E. Yorov et al., RSC Adv., 2016, 6, 15535–15540.
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Affiliation(s)
- K. E. Yorov
- Department of Materials Science
- Lomonosov Moscow State University
- Moscow 119991
- Russia
| | - A. V. Sidorov
- Department of Materials Science
- Lomonosov Moscow State University
- Moscow 119991
- Russia
| | - A. Yu. Polyakov
- Department of Materials Science
- Lomonosov Moscow State University
- Moscow 119991
- Russia
| | - I. V. Sukhorukova
- National University of Science and Technology MISiS
- Moscow 119049
- Russia
| | - D. V. Shtansky
- National University of Science and Technology MISiS
- Moscow 119049
- Russia
| | - W. Grünert
- Department of Chemistry and Biochemistry
- Ruhr-University at Bochum
- Bochum 44801
- Germany
| | - A. V. Grigorieva
- Department of Materials Science
- Lomonosov Moscow State University
- Moscow 119991
- Russia
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25
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Semenova AA, Braze NA, Maksimov GV, Semenova IA, Semenov AP, Goodilin EA. Plasmonic properties of aged silver hydrosols. MENDELEEV COMMUNICATIONS 2016. [DOI: 10.1016/j.mencom.2016.01.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Semenova AA, Brazhe NA, Parshina EY, Sarycheva AS, Maksimov GV, Goodilin EA. A new route for SERS analysis of intact erythrocytes using polydisperse silver nanoplatelets on biocompatible scaffolds. RSC Adv 2016. [DOI: 10.1039/c6ra20372h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
We provided mutual survival of anisotropic silver nanoparticles and intact erythrocyte in salines to record SERS spectra on biocompatible cellulose scaffolds after replacement of chloride ions with nitrates.
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Affiliation(s)
- Anna A. Semenova
- Faculty of Materials Science
- Moscow State University
- Moscow
- Russian Federation
| | | | | | - Asia S. Sarycheva
- Faculty of Materials Science
- Moscow State University
- Moscow
- Russian Federation
| | | | - Eugene A. Goodilin
- Faculty of Materials Science
- Moscow State University
- Moscow
- Russian Federation
- Kurnakov Institute of General Anorganic Chemistry
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Sarycheva AS, Brazhe NA, Baizhumanov AA, Nikelshparg EI, Semenova AA, Garshev AV, Baranchikov AE, Ivanov VK, Maksimov GV, Sosnovtseva O, Goodilin EA. New nanocomposites for SERS studies of living cells and mitochondria. J Mater Chem B 2015; 4:539-546. [PMID: 32263217 DOI: 10.1039/c5tb01886b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A great enhancement in Raman scattering (SERS) from heme-containing submembrane biomolecules inside intact erythrocytes and functional mitochondria is demonstrated for the first time using silver-silica beads prepared using a new method involving aerosol pyrolysis with aqueous diamminesilver(i) hydroxide as a unique source of plasmonic nanoparticles for SiO2 microspheres. The recorded SERS spectra reveal a set of characteristic peaks at 750, 1127, 1170, 1371, 1565, 1585 and 1638 cm-1, resulting from the normal group vibrations of the pyrrole rings, methine bridges and side radicals in the heme molecules. The SERS spectra of functional mitochondria are sensitive to the activity of the mitochondrial electron transport chain, thus making the method a novel label-free approach to monitor the redox state and conformation of cytochromes in their natural cell environment. The developed nanocomposites are highly suitable for the analysis of biological objects due to their robust synthesis and superior spatial and temporal signal reproducibility, which was preserved for a period of at least one year.
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Affiliation(s)
- A S Sarycheva
- Department of Nanomaterials, Faculty of Material Sciences, Moscow State University, Leninskie gory 1/3, Moscow, 119991, Russia.
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Sidorov AV, Eremina OE, Veselova IA, Goodilin EA. Polymer-coated substrates for surface enhanced Raman spectroscopy. MENDELEEV COMMUNICATIONS 2015. [DOI: 10.1016/j.mencom.2015.11.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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29
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Brazhe NA, Evlyukhin AB, Goodilin EA, Semenova AA, Novikov SM, Bozhevolnyi SI, Chichkov BN, Sarycheva AS, Baizhumanov AA, Nikelshparg EI, Deev LI, Maksimov EG, Maksimov GV, Sosnovtseva O. Probing cytochrome c in living mitochondria with surface-enhanced Raman spectroscopy. Sci Rep 2015; 5:13793. [PMID: 26346634 PMCID: PMC4561893 DOI: 10.1038/srep13793] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 08/03/2015] [Indexed: 11/29/2022] Open
Abstract
Selective study of the electron transport chain components in living mitochondria is essential for fundamental biophysical research and for the development of new medical diagnostic methods. However, many important details of inter- and intramembrane mitochondrial processes have remained in shadow due to the lack of non-invasive techniques. Here we suggest a novel label-free approach based on the surface-enhanced Raman spectroscopy (SERS) to monitor the redox state and conformation of cytochrome c in the electron transport chain in living mitochondria. We demonstrate that SERS spectra of living mitochondria placed on hierarchically structured silver-ring substrates provide exclusive information about cytochrome c behavior under modulation of inner mitochondrial membrane potential, proton gradient and the activity of ATP-synthetase. Mathematical simulation explains the observed enhancement of Raman scattering due to high concentration of electric near-field and large contact area between mitochondria and nanostructured surfaces.
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Affiliation(s)
- Nadezda A. Brazhe
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
- Department of Biomedical Sciences, Faculty of Medical and Health Sciences, Copenhagen University, Blegdamsvej 3, Copenhagen, DK-2200, Denmark
| | - Andrey B. Evlyukhin
- Laser Zentrum Hannover e. V., Hollerihallee 8, D-30419 Hannover, Germany
- Department of Technology and Innovation, University of Southern Denmark, Odense M, DK-5230 Denmark
| | - Eugene A. Goodilin
- Department of Nanomaterials, Faculty of Material Sciences, Moscow State University, Moscow, Leninskie gory 1/73, 119991, Russia
- Department of Inorganic chemistry, Faculty of Chemistry, Moscow State University, Moscow, Leninskie gory 1/3, 119991, Russia
- Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences, Moscow, Leninskiy prospekt, 119992, Russia
| | - Anna A. Semenova
- Department of Nanomaterials, Faculty of Material Sciences, Moscow State University, Moscow, Leninskie gory 1/73, 119991, Russia
| | - Sergey M. Novikov
- Department of Technology and Innovation, University of Southern Denmark, Odense M, DK-5230 Denmark
| | - Sergey I. Bozhevolnyi
- Department of Technology and Innovation, University of Southern Denmark, Odense M, DK-5230 Denmark
| | - Boris N. Chichkov
- Laser Zentrum Hannover e. V., Hollerihallee 8, D-30419 Hannover, Germany
| | - Asya S. Sarycheva
- Department of Nanomaterials, Faculty of Material Sciences, Moscow State University, Moscow, Leninskie gory 1/73, 119991, Russia
| | - Adil A. Baizhumanov
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
| | - Evelina I. Nikelshparg
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
| | - Leonid I. Deev
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
| | - Eugene G. Maksimov
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
| | - Georgy V. Maksimov
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
| | - Olga Sosnovtseva
- Department of Biomedical Sciences, Faculty of Medical and Health Sciences, Copenhagen University, Blegdamsvej 3, Copenhagen, DK-2200, Denmark
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Langer J, Novikov SM, Liz-Marzán LM. Sensing using plasmonic nanostructures and nanoparticles. NANOTECHNOLOGY 2015; 26:322001. [PMID: 26207013 DOI: 10.1088/0957-4484/26/32/322001] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Nanoparticles are widely used in various fields of science and technology as well as in everyday life. In particular, gold and silver nanoparticles display unique optical properties that render them extremely attractive for various applications. In this review, we focus on the use of noble metal nanoparticles as plasmonic nanosensors with extremely high sensitivity, even reaching single molecule detection. Sensors based on plasmon resonance shifts, as well as the use of surface-enhanced Raman scattering and surface-enhanced fluorescence, will be considered in this work.
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Affiliation(s)
- Judith Langer
- Bionanoplasmonics Laboratory, CIC biomaGUNE, Paseo de Miramón 182, E-20009 Donostia-San Sebastián, Spain
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31
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Label-free surface-enhanced Raman spectroscopy of biofluids: fundamental aspects and diagnostic applications. Anal Bioanal Chem 2015; 407:8265-77. [DOI: 10.1007/s00216-015-8697-z] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 04/09/2015] [Accepted: 04/10/2015] [Indexed: 01/11/2023]
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32
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Shcherbakov AB, Zholobak NM, Baranchikov AE, Ryabova AV, Ivanov VK. Cerium fluoride nanoparticles protect cells against oxidative stress. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 50:151-9. [DOI: 10.1016/j.msec.2015.01.094] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 01/12/2015] [Accepted: 01/30/2015] [Indexed: 12/29/2022]
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Ksenofontov AL, Parshina EY, Fedorova NV, Arutyunyan AM, Rumvolt R, Paalme V, Baratova LA, Järvekülg L, Dobrov EN. Heating-induced transition of Potyvirus Potato Virus A coat protein into β-structure. J Biomol Struct Dyn 2015; 34:250-8. [PMID: 25851284 DOI: 10.1080/07391102.2015.1022604] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In our previous communication, we have reported that virions of plant Potyvirus Potato Virus A (PVA) have a peculiar structure characterized by high content of disordered regions in intravirus coat protein (CP). In this report, we describe unusual properties of the PVA CP. With the help of a number of physicochemical methods, we have observed that the PVA CP just released from the virions by heating at 60-70 °C undergoes association into oligomers and transition to β- (and even cross-β-) conformation. Transition to β-structure on heating has been recently reported for a number of viral and non-viral proteins. The PVA CP isolated by LiCl method was also transformed into cross-β-structure on heating to 60 °C. Using the algorithms for protein aggregation prediction, we found that the aggregation-prone segments should be located in the central region of a PVA CP molecule. Possibly this transition mimics some functions of PVA CP in the virus life cycle in infected plants.
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Affiliation(s)
- Alexander L Ksenofontov
- a A.N. Belozersky Institute of Physico-Chemical Biology , Lomonosov Moscow State University , 1/40 Leninskie gory, Moscow 119991 , Russia
| | - Evgenia Yu Parshina
- b Department of Biophysics , Moscow State University , Moscow 119991 , Russia
| | - Natalia V Fedorova
- a A.N. Belozersky Institute of Physico-Chemical Biology , Lomonosov Moscow State University , 1/40 Leninskie gory, Moscow 119991 , Russia
| | - Alexander M Arutyunyan
- a A.N. Belozersky Institute of Physico-Chemical Biology , Lomonosov Moscow State University , 1/40 Leninskie gory, Moscow 119991 , Russia
| | - Reet Rumvolt
- c Department of Gene Technology , Tallinn University of Technology , Akadeemia tee 15, Tallinn 12618 , Estonia
| | - Viiu Paalme
- c Department of Gene Technology , Tallinn University of Technology , Akadeemia tee 15, Tallinn 12618 , Estonia
| | - Ludmila A Baratova
- a A.N. Belozersky Institute of Physico-Chemical Biology , Lomonosov Moscow State University , 1/40 Leninskie gory, Moscow 119991 , Russia
| | - Lilian Järvekülg
- c Department of Gene Technology , Tallinn University of Technology , Akadeemia tee 15, Tallinn 12618 , Estonia
| | - Eugeny N Dobrov
- a A.N. Belozersky Institute of Physico-Chemical Biology , Lomonosov Moscow State University , 1/40 Leninskie gory, Moscow 119991 , Russia
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Byeon JH, Park D, Kim JY. An aerosol-based soft lithography to fabricate nanoscale silver dots and rings for spectroscopic applications. NANOSCALE 2015; 7:2271-2275. [PMID: 25578812 DOI: 10.1039/c4nr07476a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Site-selective deposition of aerosol Pd nanoparticles on a substrate was employed to fabricate nanoscale Ag dots and rings through a subsequent electroless deposition. The fabricated nanoscale dot and ring arrays respectively showed properties in surface-enhanced Raman (SER, with a 1.8 × 10(5) enhancement factor) and Fourier transform near infrared (FT-NIR, at 6153 cm(-1) absorption band) spectra.
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Affiliation(s)
- Jeong Hoon Byeon
- School of Mechanical Engineering, Yeungnam University, Gyeongsan 712-749, Republic of Korea.
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35
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Sarycheva AS, Ivanov VK, Baranchikov AE, Savilov SV, Sidorov AV, Goodilin EA. Microbead silica decorated with polyhedral silver nanoparticles as a versatile component of sacrificial gel films for SERS applications. RSC Adv 2015. [DOI: 10.1039/c5ra16788d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new method of microbead silica preparation with polyhedral 20–50 nm silver nanoparticles encrusting silica surface. Such microengineered building blocks are stored safely in a sacrificial biopolymer (ethylcellulose) film.
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Affiliation(s)
- Asia S. Sarycheva
- Faculty of Materials Science
- Moscow State University
- Moscow
- Russian Federation
| | - Vladimir K. Ivanov
- Faculty of Materials Science
- Moscow State University
- Moscow
- Russian Federation
- Institute of General and Inorganic Chemistry
| | | | | | - Alexander V. Sidorov
- Faculty of Materials Science
- Moscow State University
- Moscow
- Russian Federation
- National Research Centre "Kurchatov Institute"
| | - Eugene A. Goodilin
- Faculty of Materials Science
- Moscow State University
- Moscow
- Russian Federation
- Institute of General and Inorganic Chemistry
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36
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Shcherbakov AB, Zholobak NM, Spivak NY, Ivanov VK. Advances and prospects of using nanocrystalline ceria in cancer theranostics. RUSS J INORG CHEM+ 2014. [DOI: 10.1134/s003602361413004x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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37
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Sidorov A, Vashkinskaya O, Grigorieva A, Shekhovtsova T, Veselova I, Goodilin E. Entrapment into charge transfer complexes for resonant Raman scattering enhancement. Chem Commun (Camb) 2014; 50:6468-70. [DOI: 10.1039/c4cc01550a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Dobrov EN, Nikitin NA, Trifonova EA, Parshina EY, Makarov VV, Maksimov GV, Karpova OV, Atabekov JG. β-structure of the coat protein subunits in spherical particles generated by tobacco mosaic virus thermal denaturation. J Biomol Struct Dyn 2013; 32:701-8. [PMID: 24404770 DOI: 10.1080/07391102.2013.788983] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Conversion of the rod-like tobacco mosaic virus (TMV) virions into "ball-like particles" by thermal denaturation at 90-98 °C had been described by R.G. Hart in 1956. We have reported recently that spherical particles (SPs) generated by thermal denaturation of TMV at 94-98 °C were highly stable, RNA-free, and water-insoluble. The SPs were uniform in shape but varied widely in size (53-800 nm), which depended on the virus concentration. Here, we describe some structural characteristics of SPs using circular dichroism, fluorescence spectroscopy, and Raman spectroscopy. It was found that the structure of SPs protein differs strongly from that of the native TMV and is characterized by coat protein subunits transition from mainly (about 50%) α-helical structure to a structure with low content of α-helices and a significant fraction of β-sheets. The SPs demonstrate strong reaction with thioflavin T suggesting the formation of amyloid-like structures.
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Affiliation(s)
- Evgeny N Dobrov
- a A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University , 1/40 Leninskie gory, Moscow , 119991 , Russia
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Semenova AA, Ivanov VK, Savilov SV, Goodilin EA. Unusual silver nanostructures prepared by aerosol spray pyrolysis. CrystEngComm 2013. [DOI: 10.1039/c3ce41077c] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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