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Mayorova OA, Saveleva MS, Bratashov DN, Prikhozhdenko ES. Combination of Machine Learning and Raman Spectroscopy for Determination of the Complex of Whey Protein Isolate with Hyaluronic Acid. Polymers (Basel) 2024; 16:666. [PMID: 38475349 DOI: 10.3390/polym16050666] [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: 12/29/2023] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
Macromolecules and their complexes remain interesting topics in various fields, such as targeted drug delivery and tissue regeneration. The complex chemical structure of such substances can be studied with a combination of Raman spectroscopy and machine learning. The complex of whey protein isolate (WPI) and hyaluronic acid (HA) is beneficial in terms of drug delivery. It provides HA properties with the stability obtained from WPI. However, differences between WPI-HA and WPI solutions can be difficult to detect by Raman spectroscopy. Especially when the low HA (0.1, 0.25, 0.5% w/v) and the constant WPI (5% w/v) concentrations are used. Before applying the machine learning techniques, all the collected data were divided into training and test sets in a ratio of 3:1. The performances of two ensemble methods, random forest (RF) and gradient boosting (GB), were evaluated on the Raman data, depending on the type of problem (regression or classification). The impact of noise reduction using principal component analysis (PCA) on the performance of the two machine learning methods was assessed. This procedure allowed us to reduce the number of features while retaining 95% of the explained variance in the data. Another application of these machine learning methods was to identify the WPI Raman bands that changed the most with the addition of HA. Both the RF and GB could provide feature importance data that could be plotted in conjunction with the actual Raman spectra of the samples. The results show that the addition of HA to WPI led to changes mainly around 1003 cm-1 (correspond to ring breath of phenylalanine) and 1400 cm-1, as demonstrated by the regression and classification models. For selected Raman bands, where the feature importance was greater than 1%, a direct evaluation of the effect of the amount of HA on the Raman intensities was performed but was found not to be informative. Thus, applying the RF or GB estimators to the Raman data with feature importance evaluation could detect and highlight small differences in the spectra of substances that arose from changes in the chemical structure; using PCA to filter out noise in the Raman data could improve the performance of both the RF and GB. The demonstrated results will make it possible to analyze changes in chemical bonds during various processes, for example, conjugation, to study complex mixtures of substances, even with small additions of the components of interest.
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Affiliation(s)
- Oksana A Mayorova
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia
| | - Mariia S Saveleva
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia
| | - Daniil N Bratashov
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia
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Svenskaya Y, Pallaeva T. Exploiting Benefits of Vaterite Metastability to Design Degradable Systems for Biomedical Applications. Pharmaceutics 2023; 15:2574. [PMID: 38004553 PMCID: PMC10674703 DOI: 10.3390/pharmaceutics15112574] [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: 09/18/2023] [Revised: 10/03/2023] [Accepted: 10/12/2023] [Indexed: 11/26/2023] Open
Abstract
The widespread application of calcium carbonate is determined by its high availability in nature and simplicity of synthesis in laboratory conditions. Moreover, calcium carbonate possesses highly attractive physicochemical properties that make it suitable for a wide range of biomedical applications. This review provides a conclusive analysis of the results on using the tunable vaterite metastability in the development of biodegradable drug delivery systems and therapeutic vehicles with a controlled and sustained release of the incorporated cargo. This manuscript highlights the nuances of vaterite recrystallization to non-porous calcite, dissolution at acidic pH, biodegradation at in vivo conditions and control over these processes. This review outlines the main benefits of vaterite instability for the controlled liberation of the encapsulated molecules for the development of biodegradable natural and synthetic polymeric materials for biomedical purposes.
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Affiliation(s)
- Yulia Svenskaya
- Scientific Medical Center, Saratov State University, 410012 Saratov, Russia
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3
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Yanina IY, Dyachenko PA, Abdurashitov AS, Shalin AS, Minin IV, Minin OV, Bulygin AD, Vrazhnov DA, Kistenev YV, Tuchin VV. Light distribution in fat cell layers at physiological temperatures. Sci Rep 2023; 13:1073. [PMID: 36658207 PMCID: PMC9852459 DOI: 10.1038/s41598-022-25012-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 11/23/2022] [Indexed: 01/20/2023] Open
Abstract
Adipose tissue (AT) optical properties for physiological temperatures and in vivo conditions are still insufficiently studied. The AT is composed mainly of packed cells close to spherical shape. It is a possible reason that AT demonstrates a very complicated spatial structure of reflected or transmitted light. It was shown with a cellular tissue phantom, is split into a fan of narrow tracks, originating from the insertion point and representing filament-like light distribution. The development of suitable approaches for describing light propagation in a AT is urgently needed. A mathematical model of the propagation of light through the layers of fat cells is proposed. It has been shown that the sharp local focusing of optical radiation (light localized near the shadow surface of the cells) and its cleavage by coupling whispering gallery modes depends on the optical thickness of the cell layer. The optical coherence tomography numerical simulation and experimental studies results demonstrate the importance of sharp local focusing in AT for understanding its optical properties for physiological conditions and at AT heating.
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Affiliation(s)
- Irina Yu Yanina
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., Saratov, Russia, 410012. .,Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin's Av., Tomsk, Russia, 634050.
| | - Polina A Dyachenko
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., Saratov, Russia, 410012.,Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin's Av., Tomsk, Russia, 634050
| | - Arkady S Abdurashitov
- Center for Neurobiology and Brain Restoration, Skolkovo Institute of Science and Technology, 3Nobelya Str., Moscow, Russia, 121205
| | - Alexander S Shalin
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, Dolgoprudny, 141700, Russia.,Institute of Telecommunications, Riga Technical University, 12 Azenes str., LV-1658, Riga, Latvia.,Laboratory of Fiber Optics and Optical Measurements UB-1, Kotel'nikov Institute of Radio Engineering and Electronics of Russian Academy of Sciences (Ulyanovsk Branch), 48 Goncharova Str., Ulyanovsk, Russia, 432011
| | - Igor V Minin
- School of Nondestructive Testing, Tomsk Polytechnic University, 30 Lenin Av., Tomsk, Russia, 634050.,Institute for Strategic Studies, Siberian State University of Geosystems and Technologies, 10 Plahotnogo Str., Novosibirsk, Russia, 630108
| | - Oleg V Minin
- School of Nondestructive Testing, Tomsk Polytechnic University, 30 Lenin Av., Tomsk, Russia, 634050.,Institute for Strategic Studies, Siberian State University of Geosystems and Technologies, 10 Plahotnogo Str., Novosibirsk, Russia, 630108
| | - Andrey D Bulygin
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin's Av., Tomsk, Russia, 634050.,Laboratory of Nonlinear Optical Interactions, V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Sciences, 1 Academician Zuev Sq., Tomsk, Russia, 634055
| | - Denis A Vrazhnov
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin's Av., Tomsk, Russia, 634050.,Laboratory for Remote Sensing of the Environment, V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Sciences, 1 Academician Zuev Sq., Tomsk, Russia, 634055
| | - Yury V Kistenev
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin's Av., Tomsk, Russia, 634050.,Laboratory for Remote Sensing of the Environment, V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Sciences, 1 Academician Zuev Sq., Tomsk, Russia, 634055
| | - Valery V Tuchin
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., Saratov, Russia, 410012.,Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin's Av., Tomsk, Russia, 634050.,Laboratory of Laser Diagnostics of Technical and Living Systems, Institute of Precision Mechanics and Control, FRC "Saratov Scientific Centre of the Russian Academy of Sciences", 24 Rabochaya Str., Saratov, Russia, 410028.,A.N. Bach Institute of Biochemistry, FRC "Fundamentals of Biotechnology", 33-2, Leninsky Av., Moscow, Russia, 119991
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Yanina IY, Tanikawa Y, Genina EA, Dyachenko PA, Tuchina DK, Bashkatov AN, Dolotov LE, Tarakanchikova YV, Terentuk GS, Navolokin NA, Bucharskaya AB, Maslyakova GN, Iga Y, Takimoto S, Tuchin VV. Immersion optical clearing of adipose tissue in rats: ex vivo and in vivo studies. JOURNAL OF BIOPHOTONICS 2022; 15:e202100393. [PMID: 35340116 DOI: 10.1002/jbio.202100393] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/24/2022] [Accepted: 03/25/2022] [Indexed: 06/14/2023]
Abstract
Optical clearing (OC) of adipose tissue has not been studied enough, although it can be promising in medical applications, including surgery and cosmetology, for example, to visualize blood vessels or increase the permeability of tissues to laser beams. The main objective of this work is to develop technology for OC of abdominal adipose tissue in vivo using hyperosmotic optical clearing agents (OCAs). The maximum OC effect (77%) was observed for ex vivo rat adipose tissue samples exposed to OCA on fructose basis for 90 minutes. For in vivo studies, the maximum effect of OC (65%) was observed when using OCA based on diatrizoic acid and dimethylsulfoxide for 120 minutes. Histological analysis showed that in vivo application of OCAs may induce a limited local necrosis of fat cells. The efficiency of OC correlated with local tissue damage through cell necrosis due to accompanied cell lipolysis.
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Affiliation(s)
- Irina Yu Yanina
- Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
| | | | - Elina A Genina
- Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
| | - Polina A Dyachenko
- Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
| | - Daria K Tuchina
- Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
| | - Alexey N Bashkatov
- Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
| | - Leonid E Dolotov
- Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
| | | | | | - Nikita A Navolokin
- Science Medical Center, Saratov State University, Saratov, Russia
- Research-Scientific Institute of Fundamental and Clinic Uronephrology, Saratov State Medical University, Saratov, Russia
| | - Alla B Bucharskaya
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
- Science Medical Center, Saratov State University, Saratov, Russia
- Research-Scientific Institute of Fundamental and Clinic Uronephrology, Saratov State Medical University, Saratov, Russia
| | - Galina N Maslyakova
- Science Medical Center, Saratov State University, Saratov, Russia
- Research-Scientific Institute of Fundamental and Clinic Uronephrology, Saratov State Medical University, Saratov, Russia
| | | | | | - Valery V Tuchin
- Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
- Science Medical Center, Saratov State University, Saratov, Russia
- Laboratory of Laser Diagnostics of Technical and Living Systems, Institute of Precision Mechanics and Control, FRC "Saratov Scientific Centre of the Russian Academy of Sciences", Saratov, Russia
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5
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Yashchenok AM, Gusliakova OI, Konovalova EV, Novoselova MV, Shipunova VO, Abakumova TO, Efimova OI, Kholodenko R, Schulga AA, Zatsepin TS, Gorin DA, Deyev SM. Barnase encapsulation into submicron porous CaCO 3 particles: studies of loading and enzyme activity. J Mater Chem B 2021; 9:8823-8831. [PMID: 34633027 DOI: 10.1039/d1tb01315g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The present study focuses on the immobilization of the bacterial ribonuclease barnase (Bn) into submicron porous calcium carbonate (CaCO3) particles. For encapsulation, we apply adsorption, freezing-induced loading and co-precipitation methods and study the effects of adsorption time, enzyme concentration and anionic polyelectrolytes on the encapsulation efficiency of Bn. We show that the use of negatively charged dextran sulfate (DS) and ribonucleic acid from yeast (RNA) increases the loading capacity (LC) of the enzyme on CaCO3 particles by about 3-fold as compared to the particles with Bn itself. The ribonuclease (RNase) activity of encapsulated enzyme depends on the LC of the particles and transformation of metastable vaterite to stable calcite, as studied by the assessment of enzyme activities in particles.
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Affiliation(s)
- Alexey M Yashchenok
- Center for Photonics and Quantum Materials, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia.
| | - Olga I Gusliakova
- Remote Controlled Theranostic Systems Lab, Saratov State University, 410012 Saratov, Russia
| | - Elena V Konovalova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Street 16/10, 117997 Moscow, Russia
| | - Marina V Novoselova
- Center for Photonics and Quantum Materials, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia.
| | - Victoria O Shipunova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Street 16/10, 117997 Moscow, Russia
| | - Tatiana O Abakumova
- Center for Life Science, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
| | - Olga I Efimova
- Center for Neurobiology and Brain Restoration, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
| | - Roman Kholodenko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Street 16/10, 117997 Moscow, Russia
| | - Alexey A Schulga
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Street 16/10, 117997 Moscow, Russia
| | - Timofei S Zatsepin
- Center for Life Science, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
| | - Dmitry A Gorin
- Center for Photonics and Quantum Materials, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia.
| | - Sergey M Deyev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Street 16/10, 117997 Moscow, Russia
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6
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Svenskaya Y, Garello F, Lengert E, Kozlova A, Verkhovskii R, Bitonto V, Ruggiero MR, German S, Gorin D, Terreno E. Biodegradable polyelectrolyte/magnetite capsules for MR imaging and magnetic targeting of tumors. Nanotheranostics 2021; 5:362-377. [PMID: 33850694 PMCID: PMC8040826 DOI: 10.7150/ntno.59458] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 03/15/2021] [Indexed: 01/14/2023] Open
Abstract
Rationale: The tireless research for effective drug delivery approaches is prompted by poor target tissue penetration and limited selectivity against diseased cells. To overcome these issues, various nano- and micro-carriers have been developed so far, but some of them are characterized by slow degradation time, thus hampering repeated drug administrations. The aim of this study was to pursue a selective delivery of magnetic biodegradable polyelectrolyte capsules in a mouse breast cancer model, using an external magnetic field. Methods: Four different kinds of magnetic polyelectrolyte capsules were fabricated via layer-by-layer assembly of biodegradable polymers on calcium carbonate templates. Magnetite nanoparticles were embedded either into the capsules' shell (sample S) or both into the shell and the inner volume of the capsules (samples CnS, where n is the number of nanoparticle loading cycles). Samples were first characterized in terms of their relaxometric and photosedimentometric properties. In vitro magnetic resonance imaging (MRI) experiments, carried out on RAW 264.7 cells, allowed the selection of two lead samples that proceeded for the in vivo testing on a mouse breast cancer model. In the set of in vivo experiments, an external magnet was applied for 1 hour following the intravenous injection of the capsules to improve their delivery to tumor, and MRI scans were acquired at different time points post administration. Results: All samples were considered non-cytotoxic as they provided more than 76% viability of RAW 264.7 cells upon 2 h incubation. Sample S appeared to be the most efficient in terms of T2-MRI contrast, but the less sensitive to external magnet navigation, since no difference in MRI signal with and without the magnet was observed. On the other side, sample C6S was efficiently delivered to the tumor tissue, with a three-fold T2-MRI contrast enhancement upon the external magnet application. The effective magnetic targeting of C6S capsules was also confirmed by the reduction in T2-MRI contrast in spleen if compared with the untreated with magnet mice values, and the presence of dense and clustered iron aggregates in tumor histology sections even 48 h after the magnetic targeting. Conclusion: The highlighted strategy of magnetic biodegradable polyelectrolyte capsules' design allows for the development of an efficient drug delivery system, which through an MRI-guided externally controlled navigation may lead to a significant improvement of the anticancer chemotherapy performance.
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Affiliation(s)
- Yulia Svenskaya
- Remote Controlled Systems for Theranostics laboratory, Research and Educational Institute of Nanostructures and Biosystems, Saratov State University, 410012 Saratov, Russia
| | - Francesca Garello
- Molecular and Preclinical Imaging Centres, Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy
| | - Ekaterina Lengert
- Remote Controlled Systems for Theranostics laboratory, Research and Educational Institute of Nanostructures and Biosystems, Saratov State University, 410012 Saratov, Russia
| | - Anastasiia Kozlova
- Biomedical Photoacoustics Laboratory, Saratov State University, 410012 Saratov, Russia
| | - Roman Verkhovskii
- Biomedical Photoacoustics Laboratory, Saratov State University, 410012 Saratov, Russia
| | - Valeria Bitonto
- Molecular and Preclinical Imaging Centres, Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy
| | - Maria Rosaria Ruggiero
- Molecular and Preclinical Imaging Centres, Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy
| | - Sergey German
- Laboratory of Optics and Spectroscopy of Nanoobjects, Institute of Spectroscopy of the RAS, Troitsk 108840, Russia.,Center of Photonics and Quantum Materials, Skolkovo Institute of Science and Technology, 143026 Moscow, Russia
| | - Dmitry Gorin
- Center of Photonics and Quantum Materials, Skolkovo Institute of Science and Technology, 143026 Moscow, Russia
| | - Enzo Terreno
- Molecular and Preclinical Imaging Centres, Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy
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7
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Musina GR, Dolganova IN, Chernomyrdin NV, Gavdush AA, Ulitko VE, Cherkasova OP, Tuchina DK, Nikitin PV, Alekseeva AI, Bal NV, Komandin GA, Kurlov VN, Tuchin VV, Zaytsev KI. Optimal hyperosmotic agents for tissue immersion optical clearing in terahertz biophotonics. JOURNAL OF BIOPHOTONICS 2020; 13:e202000297. [PMID: 32881362 DOI: 10.1002/jbio.202000297] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/20/2020] [Accepted: 08/28/2020] [Indexed: 05/05/2023]
Abstract
In this work, a thorough analysis of hyperosmotic agents for the immersion optical clearing (IOC) in terahertz (THz) range was performed. It was aimed at the selection of agents for the efficient enhancement of penetration depth of THz waves into biological tissues. Pulsed spectroscopy in the frequency range of 0.1 to 2.5 THz was applied for investigation of the optical properties of common IOC agents. Using the collimated transmission spectroscopy in visible range, binary diffusion coefficients of tissue water and agent in ex vivo rat brain tissue were measured. IOC agents were objectively compared using two-dimensional nomogram, accounting for their THz-wave absorption coefficients and binary diffusion coefficients. The results of this study demonstrate an interplay between the penetration depth enhancement and the diffusion rate and allow for pointing out glycerol as an optimal agent among the considered ones for particular applications in THz biophotonics.
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Affiliation(s)
- Guzel R Musina
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russian Federation
| | - Irina N Dolganova
- Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka, Russian Federation
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation
| | - Nikita V Chernomyrdin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russian Federation
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation
| | - Arsenii A Gavdush
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russian Federation
| | - Vladislav E Ulitko
- Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka, Russian Federation
| | - Olga P Cherkasova
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russian Federation
- Institute of Laser Physics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation
- National Research Tomsk State University, Tomsk, Russian Federation
| | - Daria K Tuchina
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russian Federation
- National Research Tomsk State University, Tomsk, Russian Federation
- Saratov State University, Saratov, Russian Federation
| | - Pavel V Nikitin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russian Federation
- Burdenko Neurosurgery Institute, Moscow, Russian Federation
| | - Anna I Alekseeva
- Research Institute of Human Morphology, Moscow, Russian Federation
| | - Natalia V Bal
- Institute of Higher Nervous Activity and Neurophysiology of the Russian Academy of Sciences, Moscow, Russian Federation
| | - Gennady A Komandin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russian Federation
| | - Vladimir N Kurlov
- Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka, Russian Federation
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation
| | - Valery V Tuchin
- National Research Tomsk State University, Tomsk, Russian Federation
- Saratov State University, Saratov, Russian Federation
- Institute of Precision Mechanics and Control of the Russian Academy of Sciences, Saratov, Russian Federation
| | - Kirill I Zaytsev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russian Federation
- Bauman Moscow State Technical University, Moscow, Russian Federation
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8
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Yanina IY, Navolokin NA, Bucharskaya AB, Мaslyakova GN, Tuchin VV. Skin and subcutaneous fat morphology alterations under the LED or laser treatment in rats in vivo. JOURNAL OF BIOPHOTONICS 2019; 12:e201900117. [PMID: 31454458 DOI: 10.1002/jbio.201900117] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 07/26/2019] [Accepted: 08/25/2019] [Indexed: 06/10/2023]
Abstract
The main objective of this work is to quantify the impact of photodynamic/photothermal treatment by using visible LED and NIR laser irradiation through the skin of subcutaneous fat in vivo followed up by tissue sampling and histology. The optical method may provide reduction of regional or site-specific accumulations of abdominal or subcutaneous adipose tissue precisely and least-invasively by inducing cell apoptosis and controlled necrosis of fat tissue. As photodynamic/photothermal adipose tissue sensitizers Brilliant Green (BG) or Indocyanine Green (ICG) dyes were injected subcutaneously in rats. The CW LED device (625 nm) or CW diode laser (808 nm) were used as light sources, respectively. Biopsies of skin together with subcutaneous tissues were taken for histology. The combined action BG-staining and LED-irradiation (BG + LED) or ICG-staining and NIR-laser irradiation (ICG + NIR) causes pronounced signs of damage of adipose tissue characterized by a strong stretching, thinning, folding and undulating of cell membranes and appearance of necrotic areas. As a posttreatment after 14 days only connective tissue was observed at the site of necrotic areas. The data obtained are important for safe light treatment of site-specific fat accumulations, including cellulite. This work provides a basis for the development of fat lipolysis technologies and to move them to clinical applications. Schematics of animal experiment.
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Affiliation(s)
- Irina Y Yanina
- Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
- Interdisciplinary Laboratory of Biophotonics, Tomsk State University, Tomsk, Russia
| | - Nikita A Navolokin
- Department of Pathological Anatomy, Saratov State Medical University, Saratov, Russia
| | - Alla B Bucharskaya
- Department of Pathological Anatomy, Saratov State Medical University, Saratov, Russia
| | - Galina N Мaslyakova
- Department of Pathological Anatomy, Saratov State Medical University, Saratov, Russia
| | - Valery V Tuchin
- Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
- Interdisciplinary Laboratory of Biophotonics, Tomsk State University, Tomsk, Russia
- Laboratory of Laser Diagnostics of Technical and Living Systems, Institute of Precision Mechanics and Control of the Russian Academy of Sciences, Saratov, Russia
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