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Dwivedi M, Jindal D, Jose S, Hasan S, Nayak P. Elements in trace amount with a significant role in human physiology: a tumor pathophysiological and diagnostic aspects. J Drug Target 2024; 32:270-286. [PMID: 38251986 DOI: 10.1080/1061186x.2024.2309572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 01/09/2024] [Indexed: 01/23/2024]
Abstract
Cancer has a devastating impact globally regardless of gender, age, and community, which continues its severity to the population due to the lack of efficient strategy for the cancer diagnosis and treatment. According to the World Health Organisation report, one out of six people dies due to this deadly cancer and we need effective strategies to regulate it. In this context, trace element has a very hidden and unexplored role and require more attention from investigators. The variation in concentration of trace elements was observed during comparative studies on a cancer patient and a healthy person making them an effective target for cancer regulation. The percentage of trace elements present in the human body depends on environmental exposure, food habits, and habitats and could be instrumental in the early diagnosis of cancer. In this review, we have conducted inclusive analytics on trace elements associated with the various types of cancers and explored the several methods involved in their analysis. Further, intricacies in the correlation of trace elements with prominent cancers like prostate cancer, breast cancer, and leukaemia are represented in this review. This comprehensive information on trace elements proposes their role during cancer and as biomarkers in cancer diagnosis.
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Affiliation(s)
- Manish Dwivedi
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow, India
- Research Cell, Amity University Uttar Pradesh, Lucknow, India
| | - Divya Jindal
- Department of Biotechnology, Center for Emerging Diseases, Jaypee Institute of Information Technology, Noida, India
| | - Sandra Jose
- MET's School of Engineering, Thrissur, India
| | - Saba Hasan
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow, India
| | - Pradeep Nayak
- Department of Physics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, India
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Kim D, Kim H. Optimization of photothermal therapy conditions through diffusion analysis based on the initial injection radius of AuNPs. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING 2024:e3854. [PMID: 39051128 DOI: 10.1002/cnm.3854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 06/12/2024] [Accepted: 07/12/2024] [Indexed: 07/27/2024]
Abstract
Anticancer treatment is performed in various ways, and photothermal therapy (PTT) is gaining traction from a noninvasive treatment perspective. PTT is a treatment technique based on the photothermal effect that kills tumors by increasing their temperature. In this study, gold nanoparticles (AuNPs), which are photothermal agents, were used in numerical simulations to determine the PTT effect by considering diffusion induced changes in the distribution area of the AuNPs. The treatment effect was confirmed by varying the initial injection radius of AuNPs represented by the injection volume, the elapsed time after injection of AuNPs, and the laser intensity. The degree of maintenance of the apoptotic temperature band in the tumor was quantitatively analyzed by the apoptotic variable. Ultimately, if the initial injection radius of AuNPs is 0.7 mm or less, the optimal time to start treatment is 240 min after injection, and for 1.0 and 1.2 mm, it is optimal to start treatment when the elapsed time after injection is 90 and 30 min, respectively. This study identified the optimal treatment conditions for dosage of AuNPs and treatment start time in PTT using AuNPs, which will serve as a reference point for future PTT studies.
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Affiliation(s)
- Donghyuk Kim
- Department of Mechanical Engineering, Ajou University, Suwon-si, Gyeonggi-do, Korea
| | - Hyunjung Kim
- Department of Mechanical Engineering, Ajou University, Suwon-si, Gyeonggi-do, Korea
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3
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von der Osten-Sacken C, Staufer T, Rothkamm K, Kuhrwahl R, Grüner F. Numerical Study towards In Vivo Tracking of Micro-/Nanoplastic Based on X-ray Fluorescence Imaging. Biomedicines 2024; 12:1500. [PMID: 39062073 PMCID: PMC11274933 DOI: 10.3390/biomedicines12071500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 06/25/2024] [Accepted: 07/04/2024] [Indexed: 07/28/2024] Open
Abstract
There is a rising awareness of the toxicity of micro- and nanoplastics (MNPs); however, fundamental precise information on MNP-biodistribution in organisms is currently not available. X-ray fluorescence imaging (XFI) is introduced as a promising imaging modality to elucidate the effective MNP bioavailability and is expected to enable exact measurements on the uptake over the physical barriers of the organism and bioaccumulation in different organs. This is possible because of the ability of XFI to perform quantitative studies with a high spatial resolution and the possibility to conduct longitudinal studies. The focus of this work is a numerical study on the detection limits for a selected XFI-marker, here, palladium, to facilitate the design of future preclinical in vivo studies. Based on Monte Carlo simulations using a 3D voxel mouse model, the palladium detection thresholds in different organs under in vivo conditions in a mouse are estimated. The minimal Pd-mass in the scanning position at a reasonable significance level is determined to be <20 ng/mm2 for abdominal organs and <16 μg/mm2 for the brain. MNPs labelled with Pd and homogeneously distributed in the organ would be detectable down to a concentration of <1 μg/mL to <2.5 mg/mL in vivo. Long-term studies with a chronic MNP exposure in low concentrations are therefore possible such that XFI measurements could, in the future, contribute to MNP health risk assessment in small animals and humans.
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Affiliation(s)
- Carolin von der Osten-Sacken
- University Medical Center Hamburg-Eppendorf, Department of Radiation Oncology, Medical Faculty, University of Hamburg, Martinistraße 52, 20246 Hamburg, Germany; (C.v.d.O.-S.); (K.R.)
- Institute for Experimental Physics, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany; (T.S.); (R.K.)
| | - Theresa Staufer
- Institute for Experimental Physics, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany; (T.S.); (R.K.)
- Center for Free-Electron Laser Science (CFEL), Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Kai Rothkamm
- University Medical Center Hamburg-Eppendorf, Department of Radiation Oncology, Medical Faculty, University of Hamburg, Martinistraße 52, 20246 Hamburg, Germany; (C.v.d.O.-S.); (K.R.)
| | - Robert Kuhrwahl
- Institute for Experimental Physics, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany; (T.S.); (R.K.)
- Center for Free-Electron Laser Science (CFEL), Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Florian Grüner
- Institute for Experimental Physics, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany; (T.S.); (R.K.)
- Center for Free-Electron Laser Science (CFEL), Luruper Chaussee 149, 22761 Hamburg, Germany
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Ciatti JL, Vazquez-Guardado A, Brings VE, Park J, Ruyle B, Ober RA, McLuckie AJ, Talcott MR, Carter EA, Burrell AR, Sponenburg RA, Trueb J, Gupta P, Kim J, Avila R, Seong M, Slivicki RA, Kaplan MA, Villalpando-Hernandez B, Massaly N, Montana MC, Pet M, Huang Y, Morón JA, Gereau RW, Rogers JA. An Autonomous Implantable Device for the Prevention of Death from Opioid Overdose. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.27.600919. [PMID: 39005313 PMCID: PMC11244915 DOI: 10.1101/2024.06.27.600919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
Opioid overdose accounts for nearly 75,000 deaths per year in the United States, representing a leading cause of mortality amongst the prime working age population (25-54 years). At overdose levels, opioid-induced respiratory depression becomes fatal without timely administration of the rescue drug naloxone. Currently, overdose survival relies entirely on bystander intervention, requiring a nearby person to discover and identify the overdosed individual, and have immediate access to naloxone to administer. Government efforts have focused on providing naloxone in abundance but do not address the equally critical component for overdose rescue: a willing and informed bystander. To address this unmet need, we developed the Naloximeter: a class of life-saving implantable devices that autonomously detect and treat overdose, with the ability to simultaneously contact first-responders. We present three Naloximeter platforms, for both fundamental research and clinical translation, all equipped with optical sensors, drug delivery mechanisms, and a supporting ecosystem of technology to counteract opioid-induced respiratory depression. In small and large animal studies, the Naloximeter rescues from otherwise fatal opioid overdose within minutes. This work introduces life-changing, clinically translatable technologies that broadly benefit a susceptible population recovering from opioid use disorder.
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Ji C, Oshima K, Urata T, Kimura F, Ishii K, Uehara T, Suzuki K, Takeyama S, Yamaguchi M. Transformation from hematoxylin-and-eosin staining to Ki-67 immunohistochemistry digital staining images using deep learning: experimental validation on the labeling index. J Med Imaging (Bellingham) 2024; 11:047501. [PMID: 39087085 PMCID: PMC11287056 DOI: 10.1117/1.jmi.11.4.047501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 04/09/2024] [Accepted: 06/05/2024] [Indexed: 08/02/2024] Open
Abstract
Purpose Endometrial cancer (EC) is one of the most common types of cancer affecting women. While the hematoxylin-and-eosin (H&E) staining remains the standard for histological analysis, the immunohistochemistry (IHC) method provides molecular-level visualizations. Our study proposes a digital staining method to generate the hematoxylin-3,3'-diaminobenzidine (H-DAB) IHC stain of Ki-67 for the whole slide image of the EC tumor from its H&E stain counterpart. Approach We employed a color unmixing technique to yield stain density maps from the optical density (OD) of the stains and utilized the U-Net for end-to-end inference. The effectiveness of the proposed method was evaluated using the Pearson correlation between the digital and physical stain's labeling index (LI), a key metric indicating tumor proliferation. Two different cross-validation schemes were designed in our study: intraslide validation and cross-case validation (CCV). In the widely used intraslide scheme, the training and validation sets might include different regions from the same slide. The rigorous CCV validation scheme strictly prohibited any validation slide from contributing to training. Results The proposed method yielded a high-resolution digital stain with preserved histological features, indicating a reliable correlation with the physical stain in terms of the Ki-67 LI. In the intraslide scheme, using intraslide patches resulted in a biased accuracy (e.g., R = 0.98 ) significantly higher than that of CCV. The CCV scheme retained a fair correlation (e.g., R = 0.66 ) between the LIs calculated from the digital stain and its physical IHC counterpart. Inferring the OD of the IHC stain from that of the H&E stain enhanced the correlation metric, outperforming that of the baseline model using the RGB space. Conclusions Our study revealed that molecule-level insights could be obtained from H&E images using deep learning. Furthermore, the improvement brought via OD inference indicated a possible method for creating more generalizable models for digital staining via per-stain analysis.
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Affiliation(s)
- Cunyuan Ji
- Tokyo Institute of Technology, School of Engineering, Department of Information and Communications Engineering, Yokohama, Japan
| | - Kengo Oshima
- Shinshu University, School of Health Sciences, Department of Biomedical Laboratory Sciences, Matsumoto, Japan
| | - Takumi Urata
- Tokyo Institute of Technology, School of Engineering, Department of Information and Communications Engineering, Yokohama, Japan
| | - Fumikazu Kimura
- Shinshu University, School of Health Sciences, Department of Biomedical Laboratory Sciences, Matsumoto, Japan
| | - Keiko Ishii
- Okaya City Hospital, Division of Diagnostic Pathology, Okaya, Japan
| | - Takeshi Uehara
- Shinshu University, School of Medicine, Department of Laboratory Medicine, Matsumoto, Japan
| | - Kenji Suzuki
- Tokyo Institute of Technology, Institute of Innovative Research, Biomedical AI Research Unit, Yokohama, Japan
| | - Saori Takeyama
- Tokyo Institute of Technology, School of Engineering, Department of Information and Communications Engineering, Yokohama, Japan
| | - Masahiro Yamaguchi
- Tokyo Institute of Technology, School of Engineering, Department of Information and Communications Engineering, Yokohama, Japan
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Sabir K, Ahmad N, Ali H. Monitoring the Quality Parameters of Mango Juices Using Fluorescence Spectroscopy. J Fluoresc 2024:10.1007/s10895-024-03818-2. [PMID: 38954082 DOI: 10.1007/s10895-024-03818-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Accepted: 06/24/2024] [Indexed: 07/04/2024]
Abstract
The current study looks into the characterization and differentiation of mango juices that are sold commercially using fluorescence spectroscopy. The emission spectra displayed well-defined and prominent peaks that suggested the existence of many fluorophores, such as water content, β-carotene, tartrazine food color, and chlorophyll components. For this study, water and yellow food coloring solution, the two most popular adulterants were added to pure and authenticated mango pulp that had been diluted to an 8% concentration. The fluorophore profile of the samples was ascertained by using multivariate analysis (principal component analysis) in conjunction with fluorescence spectroscopy. The findings showed that the existence of water content is directly correlated with the spectral bands at 444 and 467 nm, and for food color at 580 nm thus the best indicators to detect adulteration of high water contents and food color. Chlorophyll and β-carotene intensities varied among juices, acting as a discriminant marker to distinguish between those with unripened pulp (high chlorophyll intensity) and those with more water and other pigments (lower chlorophyll and β-carotene intensities). With fluorescence emission spectroscopy, qualitative assessment of mango juice can be quickly determined by spectral features, providing details on composition and quality.
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Affiliation(s)
- Kokab Sabir
- Institute of Engineering and Applied Sciences, National Institute of Lasers and Optronics College, Nilore, Islamabad, 45650, Pakistan
| | - Naveed Ahmad
- Institute of Engineering and Applied Sciences, National Institute of Lasers and Optronics College, Nilore, Islamabad, 45650, Pakistan.
| | - Hina Ali
- Department of Physics, Mirpur University of Science and Technology (MUST), Mirpur, Azad Kashmir, 10250, Pakistan
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Fan X, Gong B, Yang H, Yang J, Qi G, Wang Z, Sun J, Fang Y. Changes in temporal lobe activation during a sound stimulation task in patients with sensorineural tinnitus: a multi-channel near-infrared spectroscopy study. Biomed Eng Online 2024; 23:59. [PMID: 38902700 PMCID: PMC11191237 DOI: 10.1186/s12938-024-01255-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 06/11/2024] [Indexed: 06/22/2024] Open
Abstract
BACKGROUND The subjective sign of a serious pandemic in human work and life is mathematical neural tinnitus. fNIRS (functional near-infrared spectroscopy) is a new non-invasive brain imaging technology for studying the neurological activity of the human cerebral cortex. It is based on neural coupling effects. This research uses the fNIRS approach to detect differences in the neurological activity of the cerebral skin in the sound stimulation mission in order to better discriminate between the sensational neurological tinnitus. METHODS In the fNIRS brain imaging method, 14 sensorineural tinnitus sufferers and 14 healthy controls listened to varied noise and quiet for fNIRS data collection. Linear fitting was employed in MATLAB to eliminate slow drifts during preprocessing and event-related design analysis. The false discovery rate (FDR) procedure was applied in IBM SPSS Statistics 26.0 to control the false positive rate in multiple comparison analyses. RESULTS When the ill group and the healthy control group were stimulated by pink noise, there was a significant difference in blood oxygen concentration (P < 0.05), and the healthy control group exhibited a high activation, according to the fNIRS measurement data. The blood oxygen concentration level in the patient group was dramatically enhanced after one month of acupuncture therapy under the identical stimulation task settings, and it was favorably connected with the levels of THI and TEQ scales. CONCLUSIONS Using sensorineural tinnitus illness as an example, fNIRS technology has the potential to disclose future pathological study on subjective diseases throughout time. Other clinical disorders involving the temporal lobe and adjacent brain areas may also be examined, in addition to tinnitus-related brain alterations.
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Affiliation(s)
- Xiaoli Fan
- Department of Traditional Chinese Medicine, Songjiang Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 201699, China.
| | - Bin Gong
- School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China
| | - Hao Yang
- School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China
| | - Juanjuan Yang
- School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China
| | - Gaowei Qi
- Department of Traditional Chinese Medicine, Songjiang Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 201699, China
| | - Zheng Wang
- Department of Traditional Chinese Medicine, Songjiang Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 201699, China
| | - Jie Sun
- Department of Traditional Chinese Medicine, Songjiang Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 201699, China
| | - Yu Fang
- School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China.
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Stolz L, Beutel B, Kienle A, Foschum F. Optical Goniometer Paired with Digital Monte Carlo Twin to Determine the Optical Properties of Turbid Media. SENSORS (BASEL, SWITZERLAND) 2024; 24:3525. [PMID: 38894316 PMCID: PMC11175010 DOI: 10.3390/s24113525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/21/2024] [Accepted: 05/29/2024] [Indexed: 06/21/2024]
Abstract
We present a goniometer designed for capturing spectral and angular-resolved data from scattering and absorbing media. The experimental apparatus is complemented by a comprehensive Monte Carlo simulation, meticulously replicating the radiative transport processes within the instrument's optical components and simulating scattering and absorption across arbitrary volumes. Consequently, we were able to construct a precise digital replica, or "twin", of the experimental setup. This digital counterpart enabled us to tackle the inverse problem of deducing optical parameters such as absorption and scattering coefficients, along with the scattering anisotropy factor from measurements. We achieved this by fitting Monte Carlo simulations to our goniometric measurements using a Levenberg-Marquardt algorithm. Validation of our approach was performed using polystyrene particles, characterized by Mie scattering, supplemented by a theoretical analysis of algorithmic convergence. Ultimately, we demonstrate strong agreement between optical parameters derived using our novel methodology and those obtained via established measurement protocols.
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Affiliation(s)
- Levin Stolz
- Institut für Lasertechnologien in der Medizin und Meßtechnik, Universität Ulm, Helmholtzstr 12, 89081 Ulm, Germany; (B.B.); (A.K.); (F.F.)
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Nakazawa T, Sekine R, Kitabayashi M, Hashimoto Y, Ienaka A, Morishita K, Fujii T, Ito M, Matsushita F. Non-invasive blood glucose estimation method based on the phase delay between oxy- and deoxyhemoglobin using visible and near-infrared spectroscopy. JOURNAL OF BIOMEDICAL OPTICS 2024; 29:037001. [PMID: 38444669 PMCID: PMC10913690 DOI: 10.1117/1.jbo.29.3.037001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/22/2024] [Accepted: 02/05/2024] [Indexed: 03/07/2024]
Abstract
Significance Many researchers have attempted to estimate blood glucose levels (BGLs) noninvasively using near-infrared (NIR) spectroscopy. However, the optical absorption change induced by blood glucose is weak in the NIR region and often masked by interference from other components such as water and hemoglobin. Aim Instead of using direct optical absorption by glucose, this study proposes an index calculated from oxy- and deoxyhemoglobin signals that shows a good correlation with BGLs while using conventional visible and NIR spectroscopy. Approach The metabolic index, which is based on tissue oxygen consumption, was derived through analytical methods and further verified and reproduced in a series of glucose challenge experiments. Blood glucose estimation units were prototyped by utilizing commercially available smart devices. Results Our experimental results showed that the phase delay between the oxy- and deoxyhemoglobin signals in near-infrared spectroscopy correlates with BGL measured by a conventional continuous glucose monitor. The proposed method was also confirmed to work well with visible spectroscopy systems based on smartphone cameras. The proposed method also demonstrated excellent repeatability in results from a total of 19 oral challenge tests. Conclusions This study demonstrated the feasibility of non-invasive glucose monitoring using existing photoplethysmography sensors for pulse oximeters and smartwatches. Evaluating the proposed method in diabetic or unhealthy individuals may serve to further increase its practicality.
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Affiliation(s)
| | - Rui Sekine
- Hamamatsu Photonics K.K., Hamamatsu, Japan
| | | | | | | | | | | | - Masaki Ito
- Hamamatsu Photonics K.K., Hamamatsu, Japan
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Bhatt SJ, Routh AF. Optical absorbance profilometry for tracking time-resolved particle redistribution in high volume fraction colloidal droplets. Sci Rep 2024; 14:637. [PMID: 38182716 PMCID: PMC10770116 DOI: 10.1038/s41598-024-51250-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 01/02/2024] [Indexed: 01/07/2024] Open
Abstract
The distribution of components within colloidal suspensions is important in many complex biological and industrial fluids. A convenient method of measuring such distributions in low-volume-fraction suspensions is that of optical absorbance. Here we introduce a time-dependent validity criterion allowing extended use of optical absorbance to track colloidal distribution in high volume fraction suspensions. We define our validity criterion and show its use on a range of volume fractions from 15 to 55%, and also on larger micron sized particles, common for biological cells. Within the validity criterion, we establish the evaporative time duration in which the material's intrinsic coefficient of extinction can be treated as constant. This method enables rapid, low-cost, time-based study of the advective flow of suspended particulates, enabling advection to be straightforwardly measured from digital imaging. The residue profile predicted using our method in two test systems is compared with conventional laser profilometry measurements of the final evaporated residue, with good agreement at most radial positions.
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Affiliation(s)
- Sheila J Bhatt
- Department of Chemical Engineering and Biotechnology, Institute for Environmental and Energy Flows, University of Cambridge, Phillipa Fawcett Drive, Cambridge, CB3 0AS, UK
| | - Alexander F Routh
- Department of Chemical Engineering and Biotechnology, Institute for Environmental and Energy Flows, University of Cambridge, Phillipa Fawcett Drive, Cambridge, CB3 0AS, UK.
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Sweeney A, Arora A, Edwards S, Mallidi S. Ultrasound-guided Photoacoustic image Annotation Toolkit in MATLAB (PHANTOM) for preclinical applications. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.07.565885. [PMID: 37986998 PMCID: PMC10659350 DOI: 10.1101/2023.11.07.565885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Depth-dependent fluence-compensation in photoacoustic (PA) imaging is paramount for accurate quantification of chromophores from deep tissues. Here we present a user-friendly toolkit named PHANTOM (PHotoacoustic ANnotation TOolkit for MATLAB) that includes a graphical interface and assists in the segmentation of ultrasound-guided PA images. We modelled the light source configuration with Monte Carlo eXtreme and utilized 3D segmented tissues from ultrasound to generate fluence maps to depth compensate PA images. The methodology was used to analyze PA images of phantoms with varying blood oxygenation and results were validated with oxygen electrode measurements. Two preclinical models, a subcutaneous tumor and a calcified placenta, were imaged and fluence-compensated using the PHANTOM toolkit and the results were verified with immunohistochemistry. The PHANTOM toolkit provides scripts and auxiliary functions to enable biomedical researchers not specialized in optical imaging to apply fluence correction to PA images, enhancing accessibility of quantitative PAI for researchers in various fields.
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Affiliation(s)
- Allison Sweeney
- Department of Biomedical Engineering, Tufts University, Medford, MA, United States
| | - Aayush Arora
- Department of Biomedical Engineering, Tufts University, Medford, MA, United States
| | - Skye Edwards
- Department of Biomedical Engineering, Tufts University, Medford, MA, United States
| | - Srivalleesha Mallidi
- Department of Biomedical Engineering, Tufts University, Medford, MA, United States
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, United States
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12
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Chen CT, Tseng SH, Sung BH, Chen YY, Cheng HC. Noninvasive transcutaneous bilirubin measurement in adults using skin diffuse reflectance. BIOMEDICAL OPTICS EXPRESS 2023; 14:5405-5417. [PMID: 37854578 PMCID: PMC10581810 DOI: 10.1364/boe.500833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/17/2023] [Accepted: 09/18/2023] [Indexed: 10/20/2023]
Abstract
Accurate measurement of bilirubin concentration in adults is crucial for the diagnosis and management of liver and biliary tract diseases. Traditional methods relying on central laboratory testing pose challenges such as invasiveness, patient discomfort, and time consumption. Non-invasive alternatives have been explored, but their applicability to adult populations remains uncertain. This study aimed to develop and validate a portable non-invasive optical system based on spatially resolved diffuse reflectance spectroscopy (DRS) specifically tailored for adult transcutaneous bilirubin measurement. Forty-two adult patients with various underlying conditions were included in the study. Comparisons between transcutaneous bilirubin values measured by the DRS system and total serum bilirubin concentrations obtained through blood tests revealed strong correlations, particularly at the neck (r = 0.872) and the medial side of the right upper arm (r = 0.940). Bland-Altman analyses demonstrated substantial agreement between the transcutaneous bilirubin values and total serum bilirubin concentrations. The results highlight the potential of the non-invasive DRS system as a convenient and reliable tool for monitoring bilirubin values in adults.
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Affiliation(s)
- Chia-Te Chen
- Department of Nursing, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Sheng-Hao Tseng
- Department of Photonics, National Cheng Kung University, Tainan, Taiwan
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Bing-Hsuan Sung
- Department of Photonics, National Cheng Kung University, Tainan, Taiwan
| | - Ying-Yu Chen
- Department of Photonics, National Cheng Kung University, Tainan, Taiwan
| | - Hsiu-Chi Cheng
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Internal Medicine, Tainan Hospital, Ministry of Health and Welfare, Tainan, Taiwan
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Tzroya A, Erblich S, Duadi H, Fixler D. Detecting Contaminants in Water Based on Full Scattering Profiles within the Single Scattering Regime. ACS OMEGA 2023; 8:23733-23738. [PMID: 37426274 PMCID: PMC10323954 DOI: 10.1021/acsomega.3c01977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 06/06/2023] [Indexed: 07/11/2023]
Abstract
Clean water is essential for maintaining human health. To ensure clean water, it is important to use sensitive detection methods that can identify contaminants in real time. Most techniques do not rely on optical properties and require calibrating the system for each level of contamination. Therefore, we suggest a new technique to measure water contamination using the full scattering profile, which is the angular intensity distribution. From this, we extracted the iso-pathlength (IPL) point which minimizes the effects of scattering. The IPL point is an angle where the intensity values remain constant for different scattering coefficients while the absorption coefficient is set. The absorption coefficient does not affect the IPL point but only attenuates its intensity. In this paper, we show the appearance of the IPL in single scattering regimes for small concentrations of Intralipid. We extracted a unique point for each sample diameter wherein light intensity remained constant. The results describe a linear dependency between the angular position of the IPL point and the sample diameter. In addition, we show that the IPL point separates the absorption from the scattering, which allows the absorption coefficient to be extracted. Eventually, we present how we used the IPL point to detect the contamination levels of Intralipid and India ink in concentrations of 30-46 and 0-4 ppm, respectively. These findings suggest that the IPL point is an intrinsic parameter of a system that can be used as an absolute calibration point. This method provides a new and efficient way of measuring and differentiating between various types of contaminants in water.
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Affiliation(s)
- Alon Tzroya
- The
Faculty of Engineering and the Institute of Nanotechnology and Advanced
Materials, Bar Ilan University, Ramat Gan 5290000, Israel
| | - Shoshana Erblich
- School
of Engineering, Rutgers University, New Brunswick, New Jersey 08901-8554, United
States
| | - Hamootal Duadi
- The
Faculty of Engineering and the Institute of Nanotechnology and Advanced
Materials, Bar Ilan University, Ramat Gan 5290000, Israel
| | - Dror Fixler
- The
Faculty of Engineering and the Institute of Nanotechnology and Advanced
Materials, Bar Ilan University, Ramat Gan 5290000, Israel
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14
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Ye Y, Gu D, Wang W. Impact of Different Skin Penetration Depths of Red and Green Wavelengths on Camera-based SpO2 Measurement. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2023; 2023:1-5. [PMID: 38082996 DOI: 10.1109/embc40787.2023.10341163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Remote camera-based estimation of blood oxygen saturation (SpO2) using visible lights has been studied recently, typically for red (660 nm) and green (550 nm) wavelengths. This paper investigates the impact of different skin penetration depths of red and green wavelengths on the SpO2 estimation based on mathematical modeling and experiments, where the SpO2-calibritability between two illumination setups, narrow-band red/green and narrow-band red/infrared, are statistically compared using the "ratio-of-ratios" method. The results show that the performance of the setup using red/green is less consistent among 17 volunteers than the setup using red/infrared, and larger SpO2 disparity between different skin regions (by SpO2 imaging) have been found for individuals in the red/green wavelengths setup. The use of visible light (red and green) may impose a risk of SpO2 calibration due to the different skin penetration depths of these two wavelengths.
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15
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Hasan MZ, Yan J, Yi Z, Korfhage MO, Tong S, Zhu C. Low-cost compact optical spectroscopy and novel spectroscopic algorithm for point-of-care real-time monitoring of nanoparticle delivery in biological tissue models. IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS : A PUBLICATION OF THE IEEE LASERS AND ELECTRO-OPTICS SOCIETY 2023; 29:7100208. [PMID: 36341280 PMCID: PMC9635618 DOI: 10.1109/jstqe.2022.3205862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective Real-time monitoring of nanoparticle delivery in biological models is essential to optimize nanoparticle-mediated therapies. However, few techniques are available for convenient real-time monitoring of nanoparticle concentrations in tissue samples. This work reported novel optical spectroscopic approaches for low-cost point-of-care real-time quantification of nanoparticle concentrations in biological tissue samples. Methods Fiber probe measured diffuse reflectance can be described with a simple analytical model by introducing an explicit dependence on the reduced scattering coefficient. Relying on this, the changes on the inverse of diffuse reflectance are proportional to absorption change when the scattering perturbation is negligible. We developed this model with proper wavelength pairs and implemented it with both a standard optical spectroscopy platform and a low-cost compact spectroscopy device for near real-time quantification of nanoparticle concentrations in biological tissue models. Results Both tissue-mimicking phantom and ex vivo tissue sample studies showed that our optical spectroscopic techniques could quantify nanoparticle concentrations in near real-time with high accuracies (less than 5% error) using only a pair of narrow wavelengths (530 nm and 630 nm). Conclusion Novel low-cost point-of-care optical spectroscopic techniques were demonstrated for rapid accurate quantification of nanoparticle concentrations in tissue-mimicking medium and ex vivo tissue samples using optical signals measured at a pair of narrow wavelengths. Significance Our methods will potentially facilitate real-time monitoring of nanoparticle delivery in biological models using low-cost point-of-care optical spectroscopy platforms, which will significantly advance nanomedicine in cancer research.
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Affiliation(s)
- Md Zahid Hasan
- Department of Biomedical Engineering, University of Kentucky, Lexington, KY 40506, USA
| | - Jing Yan
- Department of Biomedical Engineering, University of Kentucky, Lexington, KY 40506, USA
| | - Zhongchao Yi
- Department of Biomedical Engineering, University of Kentucky, Lexington, KY 40506, USA
| | - Madison O Korfhage
- Department of Biomedical Engineering, University of Kentucky, Lexington, KY 40506, USA
| | - Sheng Tong
- Department of Biomedical Engineering, University of Kentucky, Lexington, KY 40506, USA
| | - Caigang Zhu
- Department of Biomedical Engineering, University of Kentucky, Lexington, KY 40506, USA
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16
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Binzoni T, Mazzolo A. Probability density function for random photon steps in a binary (isotropic-Poisson) statistical mixture. Sci Rep 2023; 13:9887. [PMID: 37336902 DOI: 10.1038/s41598-023-36919-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 06/12/2023] [Indexed: 06/21/2023] Open
Abstract
Monte Carlo (MC) simulations allowing to describe photons propagation in statistical mixtures represent an interest that goes way beyond the domain of optics, and can cover, e.g., nuclear reactor physics, image analysis or life science just to name a few. MC simulations are considered a "gold standard" because they give exact solutions (in the statistical sense), however, in the case of statistical mixtures their implementation is often extremely complex. For this reason, the aim of the present contribution is to propose a new approach that should allow us in the future to simplify the MC approach. This is done through an explanatory example, i.e.; by deriving the 'exact' analytical expression for the probability density function of photons' random steps (single step function, SSF) propagating in a medium represented as a binary (isotropic-Poisson) statistical mixture. The use of the SSF reduces the problem to an 'equivalent' homogeneous medium behaving exactly as the original binary statistical mixture. This will reduce hundreds MC simulations, allowing to obtain one set of wanted parameters, to only one equivalent simple MC simulation. To the best of our knowledge the analytically 'exact' SSF for a binary (isotropic-Poisson) statistical mixture has never been derived before.
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Affiliation(s)
- Tiziano Binzoni
- Department of Radiology and Medical Informatics, University Hospital, Geneva, 1211, Switzerland.
| | - Alain Mazzolo
- Université Paris-Saclay, CEA, Service d'Études des Réacteurs et de Mathématiques Appliquées, 91191, Gif-sur-Yvette, France
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17
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Demirtas B, Yanar K, Koenhemsi L, Erozkan Dusak N, Guzel O, Akdogan Kaymaz A. Tobacco smoke induces oxidative stress and alters pro-inflammatory cytokines and some trace elements in healthy indoor cats. VETERINARY RESEARCH FORUM : AN INTERNATIONAL QUARTERLY JOURNAL 2023; 14:301-308. [PMID: 37383655 PMCID: PMC10298841 DOI: 10.30466/vrf.2022.545424.3357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 04/09/2022] [Indexed: 06/30/2023]
Abstract
This study was aimed to assess oxidative stress, pro-inflammatory cytokines and some trace elements in healthy pet cats exposed to environmental tobacco smoke. Forty healthy cats were included in this study. Cats were divided in two groups: Exposed to tobacco smoke (ETS; n = 20) and non-exposed to tobacco smoke (NETS; n = 20). Blood levels of cotinine, total oxidant status (TOS), oxidative stress index (OSI), lipid hydroperoxide (LOOH), protein carbonyl (PCO), advanced oxidative protein products (AOPP), total antioxidant status (TAS), copper, zinc-superoxide dismutase (Cu, Zn-SOD), catalase (CAT), total thiol (T-SH), interferon gamma (INF-γ), tumor necrosis factor (TNF-α), interleukin β (IL-1β), interleukin 6 (IL-6), interleukin-8 (IL-8), inter-leukin 2 (IL-2) and iron (Fe), zinc (Zn), copper (Cu), selenium (Se) levels were measured. Hematological and biochemical parameters were also measured. Serum cotinine, TOS, OSI, PCO, AOPP and LOOH levels were higher, whereas TAS and Cu, Zn-SOD levels were lower in ETS group. In ETS group INF-γ, IL-1β, IL-2, and IL-6 levels were higher. The Cu level was higher in ETS group. Blood reticulocyte number, serum creatinine and glucose were higher in ETS group. It could be concluded that exposure to tobacco smoke in cats impaired the oxidant/antioxidant balance and potentially triggered the release of pro-inflammatory cytokines.
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Affiliation(s)
- Berjan Demirtas
- Department of Plant and Animal Production, Equine and Training Program, Vocational School of Veterinary Medicine, Istanbul University-Cerrahpaşa, Istanbul, Türkiye;
| | - Karolin Yanar
- Department of Medical Biochemistry, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Türkiye;
| | - Lora Koenhemsi
- Department of Internal Medicine,Faculty of Veterinary Medicine, Istanbul University-Cerrahpaşa, Istanbul, Türkiye;
| | - Nurcan Erozkan Dusak
- Central Laboratory, Faculty of Veterinary Medicine, Istanbul University-Cerrahpaşa, Istanbul, Türkiye;
| | - Ozlem Guzel
- Department of Surgery,Faculty of Veterinary Medicine, Istanbul University-Cerrahpaşa, Istanbul, Türkiye.
| | - Alev Akdogan Kaymaz
- Department of Internal Medicine,Faculty of Veterinary Medicine, Istanbul University-Cerrahpaşa, Istanbul, Türkiye;
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18
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Kaub L, Schmitz C. Comparison of the Penetration Depth of 905 nm and 1064 nm Laser Light in Surface Layers of Biological Tissue Ex Vivo. Biomedicines 2023; 11:biomedicines11051355. [PMID: 37239026 DOI: 10.3390/biomedicines11051355] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/28/2023] [Accepted: 05/02/2023] [Indexed: 05/28/2023] Open
Abstract
The choice of parameters for laser beams used in the treatment of musculoskeletal diseases is of great importance. First, to reach high penetration depths into biological tissue and, secondly, to achieve the required effects on a molecular level. The penetration depth depends on the wavelength since there are multiple light-absorbing and scattering molecules in tissue with different absorption spectra. The present study is the first comparing the penetration depth of 1064 nm laser light with light of a smaller wavelength (905 nm) using high-fidelity laser measurement technology. Penetration depths in two types of tissue ex vivo (porcine skin and bovine muscle) were investigated. The transmittance of 1064 nm light through both tissue types was consistently higher than of 905 nm light. The largest differences (up to 5.9%) were seen in the upper 10 mm of tissue, while the difference vanished with increasing tissue thickness. Overall, the differences in penetration depth were comparably small. These results may be of relevance in the selection of a certain wavelength in the treatment of musculoskeletal diseases with laser therapy.
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Affiliation(s)
- Leon Kaub
- Department of Anatomy II, Faculty of Medicine, Ludwig-Maximilians-University Munich, 80336 Munich, Germany
| | - Christoph Schmitz
- Department of Anatomy II, Faculty of Medicine, Ludwig-Maximilians-University Munich, 80336 Munich, Germany
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19
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Zhang Y, Liu F, Zhang Y, Wang J, D’Andrea D, Walters JB, Li S, Yoon HJ, Wu M, Li S, Hu Z, Wang T, Choi J, Bailey K, Dempsey E, Zhao K, Lantsova A, Bouricha Y, Huang I, Guo H, Ni X, Wu Y, Lee G, Jiang F, Huang Y, Franz CK, Rogers JA. Self-powered, light-controlled, bioresorbable platforms for programmed drug delivery. Proc Natl Acad Sci U S A 2023; 120:e2217734120. [PMID: 36888661 PMCID: PMC10089205 DOI: 10.1073/pnas.2217734120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 02/06/2023] [Indexed: 03/09/2023] Open
Abstract
Degradable polymer matrices and porous scaffolds provide powerful mechanisms for passive, sustained release of drugs relevant to the treatment of a broad range of diseases and conditions. Growing interest is in active control of pharmacokinetics tailored to the needs of the patient via programmable engineering platforms that include power sources, delivery mechanisms, communication hardware, and associated electronics, most typically in forms that require surgical extraction after a period of use. Here we report a light-controlled, self-powered technology that bypasses key disadvantages of these systems, in an overall design that is bioresorbable. Programmability relies on the use of an external light source to illuminate an implanted, wavelength-sensitive phototransistor to trigger a short circuit in an electrochemical cell structure that includes a metal gate valve as its anode. Consequent electrochemical corrosion eliminates the gate, thereby opening an underlying reservoir to release a dose of drugs by passive diffusion into surrounding tissue. A wavelength-division multiplexing strategy allows release to be programmed from any one or any arbitrary combination of a collection of reservoirs built into an integrated device. Studies of various bioresorbable electrode materials define the key considerations and guide optimized choices in designs. In vivo demonstrations of programmed release of lidocaine adjacent the sciatic nerves in rat models illustrate the functionality in the context of pain management, an essential aspect of patient care that could benefit from the results presented here.
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Affiliation(s)
- Yamin Zhang
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL60208
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL60208
| | - Fei Liu
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL60208
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL60208
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL60208
| | - Yuhe Zhang
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL60208
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL60208
| | - Jin Wang
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL60208
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL60208
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL60208
| | - Dominic D’Andrea
- Regenerative Neurorehabilitation Laboratory, Shirley Ryan Ability Lab, Chicago, IL60611
| | - Jordan B. Walters
- Regenerative Neurorehabilitation Laboratory, Shirley Ryan Ability Lab, Chicago, IL60611
| | - Shupeng Li
- Department of Mechanical Engineering, Northwestern University, Evanston, IL60208
| | - Hong-Joon Yoon
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL60208
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL60208
- Department of Electronic Engineering, Gachon University, Seongnam-si, Gyeonggi-do13120, Republic of Korea
| | - Mingzheng Wu
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL60208
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL60208
- Department of Neurobiology, Northwestern University, Evanston, IL60208
| | - Shuo Li
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL60208
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL60208
| | - Ziying Hu
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL60208
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL60208
| | - Tong Wang
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL60208
| | - Junhwan Choi
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL60208
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL60208
- Department of Chemical Engineering, Dankook University, Yongin16890, Republic of Korea
| | | | - Elizabeth Dempsey
- Developmental Therapeutics Core, Northwestern University, Evanston, IL60208
| | - Kaiyu Zhao
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL60208
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL60208
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL60208
| | - Anastasia Lantsova
- Department of Biomedical Engineering, Northwestern University, Evanston, IL60208
| | - Yasmine Bouricha
- Regenerative Neurorehabilitation Laboratory, Shirley Ryan Ability Lab, Chicago, IL60611
| | - Ivy Huang
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL60208
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL60208
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL60208
| | - Hexia Guo
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL60208
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL60208
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL60208
| | - Xinchen Ni
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL60208
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL60208
| | - Yunyun Wu
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL60208
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL60208
| | - Geumbee Lee
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL60208
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL60208
| | - Fuchang Jiang
- Department of Biomedical Engineering, Northwestern University, Evanston, IL60208
| | - Yonggang Huang
- Department of Mechanical Engineering, Northwestern University, Evanston, IL60208
| | - Colin K. Franz
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL60208
- Regenerative Neurorehabilitation Laboratory, Shirley Ryan Ability Lab, Chicago, IL60611
- Department of Physical Medicine and Rehabilitation, Feinberg School of Medicine, Northwestern University, Chicago, IL60611
- The Ken and Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL60611
| | - John A. Rogers
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL60208
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL60208
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL60208
- Department of Mechanical Engineering, Northwestern University, Evanston, IL60208
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL60611
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20
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Analytical and numerical analysis of the dual-pulse lag heat transfer in a three-dimensional tissue subjected to a moving multi-point laser beam. J Therm Biol 2023; 112:103431. [PMID: 36796889 DOI: 10.1016/j.jtherbio.2022.103431] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 11/07/2022] [Accepted: 12/15/2022] [Indexed: 12/28/2022]
Abstract
An extensive algorithm based on both analytical and numerical solution methodologies is proposed to obtain transient temperature distributions in a three-dimensional living tissue subjected to a moving single-point and multi-point laser beam by considering metabolic heat generation and blood perfusion rate. Here, the dual-phase lag/Pennes equation is analytically solved by using the method of Fourier series and the Laplace transform. The ability to model single-point or multi-point laser beams as an arbitrary function of place and time is a significant advantage of the proposed analytical approach, which can be used to solve similar heat transfer problems in other living tissues. Besides, the related heat conduction problem is numerically solved based on the finite element method. The effects of laser beam transitional speed, laser power, and the number of laser points on the temperature distribution within the skin tissue are investigated. Moreover, the temperature distribution predicted by the dual-phase lag model is compared with that of the Pennes model under different working conditions. For the studied cases, it is observed that the maximum tissue temperature decreased about 63% by an increase of 6mm/s in the speed of the laser beam. An increase in the laser power from 0.8W/cm3 to 1.2W/cm3 results in a 28 °C increase in the maximum temperature of the skin tissue. It is observed that the maximum temperature predicted by the dual-phase lag model is always lower than that of the Pennes model and the temperature variations over time are sharper, while their results are entirely consistent over the simulation time. The obtained numerical results indicated that the dual-phase lag model is preferred in heating processes occurring at short intervals. Among the investigated parameters, the laser beam speed has the most considerable effect on the difference between the results of the Pennes and the dual-phase lag models.
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21
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Kaub L, Schmitz C. More than Ninety Percent of the Light Energy Emitted by Near-Infrared Laser Therapy Devices Used to Treat Musculoskeletal Disorders Is Absorbed within the First Ten Millimeters of Biological Tissue. Biomedicines 2022; 10:biomedicines10123204. [PMID: 36551959 PMCID: PMC9775104 DOI: 10.3390/biomedicines10123204] [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: 11/08/2022] [Revised: 12/02/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
There is increasing interest in the application of near-infrared (NIR) laser light for the treatment of various musculoskeletal disorders. The present study thoroughly examined the physical characteristics of laser beams from two different laser therapy devices that are commercially available for the treatment of musculoskeletal disorders. Then, these laser beams were used to measure the penetration depth in various biological tissues from different animal species. The key result of the present study was the finding that for all investigated tissues, most of the initial light energy was lost in the first one to two millimeters, more than 90% of the light energy was absorbed within the first ten millimeters, and there was hardly any light energy left after 15-20 mm of tissue. Furthermore, the investigated laser therapy devices fundamentally differed in several laser beam parameters that can have an influence on how light is transmitted through tissue. Overall, the present study showed that a laser therapy device that is supposed to reach deep layers of tissue for treatments of musculoskeletal disorders should operate with a wavelength between 800 nm and 905 nm, a top-hat beam profile, and it should emit very short pulses with a large peak power.
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22
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Oshina I, Spigulis J, Kuzmina I, Dambite L, Berzina A. Three-dimensional representation of triple spectral line imaging data as an option for noncontact skin diagnostics. JOURNAL OF BIOMEDICAL OPTICS 2022; 27:095005. [PMID: 36114603 PMCID: PMC9478380 DOI: 10.1117/1.jbo.27.9.095005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
SIGNIFICANCE Skin malformations in dermatology are mostly evaluated subjectively, based on a doctor's experience and visual perception; an option for objective quantitative skin assessment is camera-based spectrally selective diagnostics. Multispectral imaging is a technique capable to provide information about concentrations of the absorbing chromophores and their distribution over the malformation in a noncontact way. Conversion of spectral images into distribution maps of chromophores can be performed by means of the modified Beer-Lambert law. However, such distribution maps represent only single specific cases, therefore, some extensive method for data comparison is needed. AIM This study aims to develop a more informative approach for identification and characterization of skin malformations using three-dimensional (3D) representation of triple spectral line imaging data. APPROACH The 3D-representation method is experimentally tested on eight different skin pathology types, including both benign and malignant pathologies; an imaging device ensuring uniform three laser line (448, 532, and 659 nm) illumination is used. Three spectral line images are extracted from a single snapshot RGB image data, with subsequent calculation of attenuation coefficients for each working wavelength at every image pixel and represented as 3D graphs. Skin chromophore content variations in malformations are represented in a similar way. RESULTS Clinical measurement results for 99 skin pathologies, including basal cell carcinomas, melanoma, dermal nevi, combined nevi, junctional nevi, blue nevi, seborrheic keratosis, and hemangiomas. They are presented as 3D spectral attenuation maps exhibiting specific individual features for each group of pathologies. Along with intensity attenuation maps, 3D maps for content variations of three main skin chromophores (melanin, oxyhemoglobin, and deoxyhemoglobin), calculated in frame of a model based on modified Beer-Lambert law, are also presented. Advantages and disadvantages of the proposed data representation method are discussed. CONCLUSIONS The described 3D-representation method of triple spectral line imaging data shows promising potential for objective quantitative noncontact diagnosis of skin pathologies.
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Affiliation(s)
- Ilze Oshina
- University of Latvia, Biophotonics Laboratory, Institute of Atomic Physics and Spectroscopy, Riga, Latvia
| | - Janis Spigulis
- University of Latvia, Biophotonics Laboratory, Institute of Atomic Physics and Spectroscopy, Riga, Latvia
- University of Latvia, Physics Department, Faculty of Physics, Mathematics and Optometry, Riga, Latvia
| | - Ilona Kuzmina
- University of Latvia, Biophotonics Laboratory, Institute of Atomic Physics and Spectroscopy, Riga, Latvia
| | - Laura Dambite
- University of Latvia, Biophotonics Laboratory, Institute of Atomic Physics and Spectroscopy, Riga, Latvia
| | - Anna Berzina
- University of Latvia, Biophotonics Laboratory, Institute of Atomic Physics and Spectroscopy, Riga, Latvia
- The Clinic of Laser Plastics, Riga, Latvia
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23
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Sharma A, Cressman E, Attaluri A, Kraitchman DL, Ivkov R. Current Challenges in Image-Guided Magnetic Hyperthermia Therapy for Liver Cancer. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2768. [PMID: 36014633 PMCID: PMC9414548 DOI: 10.3390/nano12162768] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/03/2022] [Accepted: 08/06/2022] [Indexed: 05/09/2023]
Abstract
For patients diagnosed with advanced and unresectable hepatocellular carcinoma (HCC), liver transplantation remains the best option to extend life. Challenges with organ supply often preclude liver transplantation, making palliative non-surgical options the default front-line treatments for many patients. Even with imaging guidance, success following treatment remains inconsistent and below expectations, so new approaches are needed. Imaging-guided thermal therapy interventions have emerged as attractive procedures that offer individualized tumor targeting with the potential for the selective targeting of tumor nodules without impairing liver function. Furthermore, imaging-guided thermal therapy with added standard-of-care chemotherapies targeted to the liver tumor can directly reduce the overall dose and limit toxicities commonly seen with systemic administration. Effectiveness of non-ablative thermal therapy (hyperthermia) depends on the achieved thermal dose, defined as time-at-temperature, and leads to molecular dysfunction, cellular disruption, and eventual tissue destruction with vascular collapse. Hyperthermia therapy requires controlled heat transfer to the target either by in situ generation of the energy or its on-target conversion from an external radiative source. Magnetic hyperthermia (MHT) is a nanotechnology-based thermal therapy that exploits energy dissipation (heat) from the forced magnetic hysteresis of a magnetic colloid. MHT with magnetic nanoparticles (MNPs) and alternating magnetic fields (AMFs) requires the targeted deposition of MNPs into the tumor, followed by exposure of the region to an AMF. Emerging modalities such as magnetic particle imaging (MPI) offer additional prospects to develop fully integrated (theranostic) systems that are capable of providing diagnostic imaging, treatment planning, therapy execution, and post-treatment follow-up on a single platform. In this review, we focus on recent advances in image-guided MHT applications specific to liver cancer.
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Affiliation(s)
- Anirudh Sharma
- Department of Radiation Oncology and Molecular Radiation Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Erik Cressman
- Department of Interventional Radiology, Division of Diagnostic Imaging, MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Anilchandra Attaluri
- Department of Mechanical Engineering, School of Science, Engineering, and Technology, The Pennsylvania State University, Middletown, PA 17057, USA
| | - Dara L. Kraitchman
- Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Robert Ivkov
- Department of Radiation Oncology and Molecular Radiation Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
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24
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Stergar J, Lakota K, Perše M, Tomšič M, Milanič M. Hyperspectral evaluation of vasculature in induced peritonitis mouse models. BIOMEDICAL OPTICS EXPRESS 2022; 13:3461-3475. [PMID: 35781958 PMCID: PMC9208583 DOI: 10.1364/boe.460288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/28/2022] [Accepted: 05/08/2022] [Indexed: 06/15/2023]
Abstract
Imaging of blood vessel structure in combination with functional information about blood oxygenation can be important in characterizing many different health conditions in which the growth of new vessels contributes to the overall condition. In this paper, we present a method for extracting comprehensive maps of the vasculature from hyperspectral images that include tissue and vascular oxygenation. We also show results from a preclinical study of peritonitis in mice. First, we analyze hyperspectral images using Beer-Lambert exponential attenuation law to obtain maps of hemoglobin species throughout the sample. We then use an automatic segmentation algorithm to extract blood vessels from the hemoglobin map and combine them into a vascular structure-oxygenation map. We apply this methodology to a series of hyperspectral images of the abdominal wall of mice with and without induced peritonitis. Peritonitis is an inflammation of peritoneum that leads, if untreated, to complications such as peritoneal sclerosis and even death. Characteristic inflammatory response can also be accompanied by changes in vasculature, such as neoangiogenesis. We demonstrate a potential application of the proposed segmentation and processing method by introducing an abnormal tissue fraction metric that quantifies the amount of tissue that deviates from the average values of healthy controls. It is shown that the proposed metric successfully discriminates between healthy control subjects and model subjects with induced peritonitis and has a high statistical significance.
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Affiliation(s)
- Jošt Stergar
- J. Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia
- Faculty of Mathematics and Physics, University of Ljubljana, Jadranska ulica 19, 1000 Ljubljana, Slovenia
| | - Katja Lakota
- FAMNIT, University of Primorska, Glagoljaska 8, 6000 Koper, Slovenia
- University Medical Centre, Department of Rheumatology, Vodnikova ulica 62, 1000 Ljubljana, Slovenia
| | - Martina Perše
- Faculty of Medicine,University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia
| | - Matija Tomšič
- University Medical Centre, Department of Rheumatology, Vodnikova ulica 62, 1000 Ljubljana, Slovenia
- Faculty of Medicine,University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia
| | - Matija Milanič
- J. Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia
- Faculty of Mathematics and Physics, University of Ljubljana, Jadranska ulica 19, 1000 Ljubljana, Slovenia
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25
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Mainard N, Tsiakaka O, Li S, Denoulet J, Messaoudene K, Vialle R, Feruglio S. Intraoperative Optical Monitoring of Spinal Cord Hemodynamics Using Multiwavelength Imaging System. SENSORS (BASEL, SWITZERLAND) 2022; 22:3840. [PMID: 35632249 PMCID: PMC9146887 DOI: 10.3390/s22103840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/13/2022] [Accepted: 05/16/2022] [Indexed: 12/10/2022]
Abstract
The spinal cord is a major structure of the central nervous system allowing, among other things, the transmission of afferent sensory and efferent motor information. During spinal surgery, such as scoliosis correction, this structure can be damaged, resulting in major neurological damage to the patient. To date, there is no direct way to monitor the oxygenation of the spinal cord intraoperatively to reflect its vitality. This is essential information that would allow surgeons to adapt their procedure in case of ischemic suffering of the spinal cord. We report the development of a specific device to monitor the functional status of biological tissues with high resolution. The device, operating with multiple wavelengths, uses Near-InfraRed Spectroscopy (NIRS) in combination with other additional sensors, including ElectroNeuroGraphy (ENG). In this paper, we focused primarily on aspects of the PhotoPlethysmoGram (PPG), emanating from four different light sources to show in real time and record biological signals from the spinal cord in transmission and reflection modes. This multispectral system was successfully tested in in vivo experiments on the spinal cord of a pig for specific medical applications.
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Affiliation(s)
- Nicolas Mainard
- Department of Pediatric Surgery, Jeanne-de-Flandre Hospital, CHU Lille, Avenue Eugène-Avinée, 59000 Lille, France
- Laboratoire D’Informatique de Paris 6 (LIP6), CNRS UMR7606, Sorbonne Université, 4 Place Jussieu, CEDEX 05, 75252 Paris, France; (S.L.); (J.D.); (K.M.); (S.F.)
| | - Olivier Tsiakaka
- CERVO, Biomedical Microsystems Laboratory, Université Laval, Quebec, QC G1V 0A6, Canada;
| | - Songlin Li
- Laboratoire D’Informatique de Paris 6 (LIP6), CNRS UMR7606, Sorbonne Université, 4 Place Jussieu, CEDEX 05, 75252 Paris, France; (S.L.); (J.D.); (K.M.); (S.F.)
| | - Julien Denoulet
- Laboratoire D’Informatique de Paris 6 (LIP6), CNRS UMR7606, Sorbonne Université, 4 Place Jussieu, CEDEX 05, 75252 Paris, France; (S.L.); (J.D.); (K.M.); (S.F.)
| | - Karim Messaoudene
- Laboratoire D’Informatique de Paris 6 (LIP6), CNRS UMR7606, Sorbonne Université, 4 Place Jussieu, CEDEX 05, 75252 Paris, France; (S.L.); (J.D.); (K.M.); (S.F.)
| | - Raphael Vialle
- Clinical Research Group “RIC” Robotics and Surgical Innovations, GRC-33 Sorbonne University, 26 Avenue du Dr. Arnold Netter, 75012 Paris, France;
| | - Sylvain Feruglio
- Laboratoire D’Informatique de Paris 6 (LIP6), CNRS UMR7606, Sorbonne Université, 4 Place Jussieu, CEDEX 05, 75252 Paris, France; (S.L.); (J.D.); (K.M.); (S.F.)
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