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Genin VD, Bucharskaya AB, Kirillin MY, Kurakina DA, Navolokin NA, Terentyuk GS, Khlebtsov BN, Khlebtsov NG, Maslyakova GN, Tuchin VV, Genina EA. Monitoring of optical properties of tumors during laser plasmon photothermal therapy. JOURNAL OF BIOPHOTONICS 2024; 17:e202300322. [PMID: 38221797 DOI: 10.1002/jbio.202300322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 12/04/2023] [Accepted: 12/25/2023] [Indexed: 01/16/2024]
Abstract
We studied grafted tumors obtained by subcutaneous implantation of kidney cancer cells into male white rats. Gold nanorods with a plasmon resonance of about 800 nm were injected intratumorally for photothermal heating. Experimental irradiation of tumors was carried out percutaneously using a near-infrared diode laser. Changes in the optical properties of the studied tissues in the spectral range 350-2200 nm under plasmonic photothermal therapy (PPT) were studied. Analysis of the observed changes in the absorption bands of water and hemoglobin made it possible to estimate the depth of thermal damage to the tumor. A significant decrease in absorption peaks was observed in the spectrum of the upper peripheral part and especially the tumor capsule. The obtained changes in the optical properties of tissues under laser irradiation can be used to optimize laboratory and clinical PPT procedures.
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Affiliation(s)
- Vadim D Genin
- Optics and Biophotonics Department, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
| | - Alla B Bucharskaya
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
- Core Facility of Experimental Oncology, Saratov State Medical University named after V. I. Razumovsky, Saratov, Russia
| | - Mikhail Yu Kirillin
- Biophotonics Laboratory, Institute of Applied Physics Russian Academy of Sciences, Nizhny Novgorod, Russia
- Applied Mathematics Department, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - Daria A Kurakina
- Biophotonics Laboratory, Institute of Applied Physics Russian Academy of Sciences, Nizhny Novgorod, Russia
| | - Nikita A Navolokin
- Core Facility of Experimental Oncology, Saratov State Medical University named after V. I. Razumovsky, Saratov, Russia
| | - Georgy S Terentyuk
- Core Facility of Experimental Oncology, Saratov State Medical University named after V. I. Razumovsky, Saratov, Russia
| | - Boris N Khlebtsov
- Laboratory of Nanobiotechnology, Institute of Biochemistry and Physiology of Plants and Microorganisms, Federal Research Centre "Saratov Scientific Centre of the Russian Academy of Sciences" (IBPPM RAS), Saratov, Russia
| | - Nikolai G Khlebtsov
- Optics and Biophotonics Department, Saratov State University, Saratov, Russia
- Laboratory of Nanobiotechnology, Institute of Biochemistry and Physiology of Plants and Microorganisms, Federal Research Centre "Saratov Scientific Centre of the Russian Academy of Sciences" (IBPPM RAS), Saratov, Russia
| | - Galina N Maslyakova
- Core Facility of Experimental Oncology, Saratov State Medical University named after V. I. Razumovsky, Saratov, Russia
| | - Valery V Tuchin
- Optics and Biophotonics Department, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
- Laboratory of Laser Diagnostics of Technical and Living Systems, Institute of Precision Mechanics and Control, Federal Research Centre "Saratov Scientific Centre of the Russian Academy of Sciences", Saratov, Russia
| | - Elina A Genina
- Optics and Biophotonics Department, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
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Huo Z, Wang S, Wei H, Cheng X, Li L, Li C, Wang Z. Dynamic model for the strain-modulated spectral reflectance of the human skin in vivo. BIOMEDICAL OPTICS EXPRESS 2024; 15:2238-2250. [PMID: 38633061 PMCID: PMC11019687 DOI: 10.1364/boe.507361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/05/2023] [Accepted: 12/05/2023] [Indexed: 04/19/2024]
Abstract
Hyperspectral imaging (HSI) offers a wealth of information regarding human skin. In this study, we established a dynamic skin spectral reflectance model (DSSR) relating the reflectance to skin surface strain, considering multi physiological and physical parameters of the skin. Experimentally, by HSI, we measured the reflectance variance of the forearm skin in vivo caused by the surface strain, and assessed these key parameters. For the human skin in vivo, within the strain range covered in this paper, stretching increases spectral reflectance, while compression decreases it. Our proposed model provides a possibility for non-contact strain measurement and health monitoring on the skin in vivo based on HSI.
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Affiliation(s)
- Zongze Huo
- Department of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
| | - Shibin Wang
- Department of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
| | - Huixin Wei
- Department of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
| | - Xuanshi Cheng
- Department of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
| | - Linan Li
- Department of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
| | - Chuanwei Li
- Department of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
| | - Zhiyong Wang
- Department of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
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Berezin KV, Grabarchuk EV, Lichter AM, Dvoretski KN, Tuchin VV. Optical clearing of human skin: Molecular modeling and in vivo OCT study. JOURNAL OF BIOPHOTONICS 2024; 17:e202300354. [PMID: 38018875 DOI: 10.1002/jbio.202300354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 11/30/2023]
Abstract
The results of in vivo immersion optical clearing of human skin under the action of two different optical clearing agents (OCAs), such as an aqueous sucrose solution and a radiographic contrast agent Omnipaque™ 300 (iohexol), were obtained with the use of optical coherence tomography (OCT) method. The rate of reduction of light scattering coefficient, obtained through an averaged A-scan of the OCT image in the region of dermis within the depths from 350 to 700 μm, were determined to evaluate the efficiency of optical clearing (EOC). The correlations between the EOC and the energy of intermolecular interaction of OCAs with a fragment of collagen peptide have been established as a result of molecular modeling by quantum chemistry methods HF/STO3G/DFT/B3LYP/6-311G(d) of a number of OCAs (glycerol, iohexol, sucrose, ribose, fructose, glucose) with mimetic peptide of collagen (GPH)3 .
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Affiliation(s)
- K V Berezin
- Institute of Physics, Saratov State University, Saratov, Russia
| | - E V Grabarchuk
- Astrakhan Tatishchev State University, Astrakhan, Russia
| | - A M Lichter
- Astrakhan Tatishchev State University, Astrakhan, Russia
| | | | - V V Tuchin
- Institute of Physics, Saratov State University, Saratov, Russia
- Science Medical Center, Saratov State University, Saratov, Russia
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Aref MH, Korganbayev S, Aboughaleb IH, Hussein AA, Abbass MA, Abdlaty R, Sabry YM, Saccomandi P, Youssef ABM. Custom Hyperspectral Imaging System Reveals Unique Spectral Signatures of Heart, Kidney, and Liver Tissues. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 305:123363. [PMID: 37776837 DOI: 10.1016/j.saa.2023.123363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 09/01/2023] [Accepted: 09/04/2023] [Indexed: 10/02/2023]
Abstract
The rapid advancement of diagnostic and therapeutic optical techniques for oncology demands a good understanding of the optical properties of biological tissues. This study explores the capabilities of hyperspectral (HS) cameras as a non-invasive and non-contact optical imaging system to distinguish and highlight spectral differences inbiological soft tissuesof three structures (kidney, heart, and liver) for use inendoscopic interventionoropen surgery. The study presents an optical system consisting of two individual setups, the transmission setup, and the reflection setup, both incorporating anHS camerawith apolychromatic light sourcewithin the range of 380 to 1050 nm to measure tissue's light transmission (Tr) and diffuse light reflectance (Rd), respectively. The optical system was calibrated with a customizedliquid optical phantom, then 30 samples from various organs were investigated fortissue characterizationby measuring both Tr and Rd at the visible and near infrared (VIS-NIR) band. We exploited the ANOVA test, subsequently by a Tukey's test on the created three independent clusters (kidney vs. heart: group I / kidney vs. liver: group II / heart vs. liver: group III) to identify the optimum wavelength for each tissue regarding their spectroscopic optical properties in the VIS-NIR spectrum. The optimum spectral span for the determined light Tr of the three groups was 640 ∼ 680 nm, and the ideal range was 720 ∼ 760 nm for the measured light Rd for mutual group I and group II. However, the group III range was different at a range of 520 ∼ 560 nm. Therefore, the investigation provides vital information concerning theoptimum spectral scalefor the computed light Tr and Rd of the investigatedbiological tissues(kidney, liver, and heart) to be employed in diagnostic andtherapeutic medical applications.
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Affiliation(s)
| | - Sanzhar Korganbayev
- Department of Mechanical Engineering, Politecnico di Milano, 20156 Milan, Italy.
| | | | | | - Mohamed A Abbass
- Head of Biomedical Engineering Department, Military Technical College, Cairo, Egypt.
| | - Ramy Abdlaty
- Biomedical Engineering Department, Military Technical College, Cairo, Egypt.
| | - Yasser M Sabry
- Faculty of Engineering, Ain Shams University, Cairo, Egypt.
| | - Paola Saccomandi
- Department of Mechanical Engineering, Politecnico di Milano, 20156 Milan, Italy.
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Lin H, Li D, Zhu J, Liu S, Li J, Yu T, Tuchin VV, Semyachkina-Glushkovskaya O, Zhu D. Transcranial photobiomodulation for brain diseases: review of animal and human studies including mechanisms and emerging trends. NEUROPHOTONICS 2024; 11:010601. [PMID: 38317779 PMCID: PMC10840571 DOI: 10.1117/1.nph.11.1.010601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 12/07/2023] [Accepted: 01/05/2024] [Indexed: 02/07/2024]
Abstract
The brain diseases account for 30% of all known diseases. Pharmacological treatment is hampered by the blood-brain barrier, limiting drug delivery to the central nervous system (CNS). Transcranial photobiomodulation (tPBM) is a promising technology for treating brain diseases, due to its effectiveness, non-invasiveness, and affordability. tPBM has been widely used in pre-clinical experiments and clinical trials for treating brain diseases, such as stroke and Alzheimer's disease. This review provides a comprehensive overview of tPBM. We summarize emerging trends and new discoveries in tPBM based on over one hundred references published in the past 20 years. We discuss the advantages and disadvantages of tPBM and highlight successful experimental and clinical protocols for treating various brain diseases. A better understanding of tPBM mechanisms, the development of guidelines for clinical practice, and the study of dose-dependent and personal effects hold great promise for progress in treating brain diseases.
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Affiliation(s)
- Hao Lin
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
| | - Dongyu Li
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
- Huazhong University of Science and Technology, School of Optical Electronic Information, Wuhan, China
| | - Jingtan Zhu
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
| | - Shaojun Liu
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
| | - Jingting Li
- Huazhong University of Science and Technology, School of Engineering Sciences, Wuhan, China
| | - Tingting Yu
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
| | - Valery V. Tuchin
- Saratov State University, Science Medical Center, Saratov, Russia
- Research Center of Biotechnology of the Russian Academy of Sciences, Bach Institute of Biochemistry, Moscow, Russia
- Tomsk State University, Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk, Russia
| | - Oxana Semyachkina-Glushkovskaya
- Saratov State University, Science Medical Center, Saratov, Russia
- Humboldt University, Department of Physics, Berlin, Germany
| | - Dan Zhu
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
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Rosenfeld PJ, Cheng Y, Shen M, Gregori G, Wang RK. Unleashing the power of optical attenuation coefficients to facilitate segmentation strategies in OCT imaging of age-related macular degeneration: perspective. BIOMEDICAL OPTICS EXPRESS 2023; 14:4947-4963. [PMID: 37791280 PMCID: PMC10545179 DOI: 10.1364/boe.496080] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/22/2023] [Accepted: 07/27/2023] [Indexed: 10/05/2023]
Abstract
The use of optical attenuation coefficients (OAC) in optical coherence tomography (OCT) imaging of the retina has improved the segmentation of anatomic layers compared with traditional intensity-based algorithms. Optical attenuation correction has improved our ability to measure the choroidal thickness and choroidal vascularity index using dense volume scans. Algorithms that combine conventional intensity-based segmentation with depth-resolved OAC OCT imaging have been used to detect elevations of the retinal pigment epithelium (RPE) due to drusen and basal laminar deposits, the location of hyperpigmentation within the retina and along the RPE, the identification of macular atrophy, the thickness of the outer retinal (photoreceptor) layer, and the presence of calcified drusen. OAC OCT algorithms can identify the risk-factors that predict disease progression in age-related macular degeneration.
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Affiliation(s)
- Philip J. Rosenfeld
- Department of Ophthalmology, Bascom Palmer
Eye Institute, University of Miami Miller School of
Medicine, Miami, Florida, USA
| | - Yuxuan Cheng
- Department of Bioengineering,
University of Washington, Seattle,
Washington, USA
| | - Mengxi Shen
- Department of Ophthalmology, Bascom Palmer
Eye Institute, University of Miami Miller School of
Medicine, Miami, Florida, USA
| | - Giovanni Gregori
- Department of Ophthalmology, Bascom Palmer
Eye Institute, University of Miami Miller School of
Medicine, Miami, Florida, USA
| | - Ruikang K. Wang
- Department of Bioengineering,
University of Washington, Seattle,
Washington, USA
- Department of Ophthalmology,
University of Washington, Seattle,
Washington, USA
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Setchfield K, Gorman A, Simpson AHRW, Somekh MG, Wright AJ. Relevance and utility of the in-vivo and ex-vivo optical properties of the skin reported in the literature: a review [Invited]. BIOMEDICAL OPTICS EXPRESS 2023; 14:3555-3583. [PMID: 37497524 PMCID: PMC10368038 DOI: 10.1364/boe.493588] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/07/2023] [Accepted: 06/07/2023] [Indexed: 07/28/2023]
Abstract
Imaging non-invasively into the human body is currently limited by cost (MRI and CT scan), image resolution (ultrasound), exposure to ionising radiation (CT scan and X-ray), and the requirement for exogenous contrast agents (CT scan and PET scan). Optical imaging has the potential to overcome all these issues but is currently limited by imaging depth due to the scattering and absorption properties of human tissue. Skin is the first barrier encountered by light when imaging non-invasively, and therefore a clear understanding of the way that light interacts with skin is required for progress on optical medical imaging to be made. Here we present a thorough review of the optical properties of human skin measured in-vivo and compare these to the previously collated ex-vivo measurements. Both in-vivo and ex-vivo published data show high inter- and intra-publication variability making definitive answers regarding optical properties at given wavelengths challenging. Overall, variability is highest for ex-vivo absorption measurements with differences of up to 77-fold compared with 9.6-fold for the in-vivo absorption case. The impact of this variation on optical penetration depth and transport mean free path is presented and potential causes of these inconsistencies are discussed. We propose a set of experimental controls and reporting requirements for future measurements. We conclude that a robust in-vivo dataset, measured across a broad spectrum of wavelengths, is required for the development of future technologies that significantly increase the depth of optical imaging.
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Affiliation(s)
- Kerry Setchfield
- Optics and Photonics Research Group, Faculty of Engineering, University of Nottingham, NG7 2RD, UK
| | | | - A Hamish R W Simpson
- Department of Orthopaedics, Division of Clinical and Surgical Sciences, University of Edinburgh, EH8 9YL, UK
| | - Michael G Somekh
- Optics and Photonics Research Group, Faculty of Engineering, University of Nottingham, NG7 2RD, UK
| | - Amanda J Wright
- Optics and Photonics Research Group, Faculty of Engineering, University of Nottingham, NG7 2RD, UK
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The Glycerol-Induced Perfusion-Kinetics of the Cat Ovaries in the Follicular and Luteal Phases of the Cycle. Diagnostics (Basel) 2023; 13:diagnostics13030490. [PMID: 36766594 PMCID: PMC9914571 DOI: 10.3390/diagnostics13030490] [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: 12/23/2022] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 02/01/2023] Open
Abstract
The method of immersion optical clearing reduces light scattering in tissues, which improves the use of optical technologies in the practice of clinicians. In this work, we studied the optical and molecular diffusion properties of cat ovarian tissues in the follicular (F-ph) and luteal (L-ph) phases under the influence of glycerol using reflectance spectroscopy in a broad wavelength range from 200 to 800 nm. It was found that the reflectance and transmittance of the ovaries are significantly lower in the range from 200 to 600 nm than for longer wavelengths from 600 to 800 nm, and the efficiency of optical clearing is much lower for the ovaries in the luteal phase compared to the follicular phase. For shorter wavelengths, the following tissue transparency windows were observed: centered at 350 nm and wide (46 ± 5) nm, centered at 500 nm and wide (25 ± 7) nm for the F-ph state and with a center of 500 nm and a width of (21 ± 6) nm for the L-ph state. Using the free diffusion model, Fick's law of molecular diffusion and the Bouguer-Beer-Lambert radiation attenuation law, the glycerol/tissue water diffusion coefficient was estimated as D = (1.9 ± 0.2)10-6 cm2/s for ovaries at F-ph state and D = (2.4 ± 0.2)10-6 cm2/s-in L-ph state, and the time of complete dehydration of ovarian samples, 0.8 mm thick, as 22.3 min in F-ph state and 17.7 min in L-ph state. The ability to determine the phase in which the ovaries are stated, follicular or luteal, is also important in cryopreservation, new reproductive technologies and ovarian implantation.
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