Journal of biophotonics最新文献

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High-Throughput and Stain-Free Morphological Analysis of Sperm Using Optofluidic Time-Stretch Imaging Flow Cytometry.
Journal of biophotonics Pub Date : 2025-03-01 DOI: 10.1002/jbio.202400560
Yueyun Weng, Yujie Zou, Yan Jin, Shubin Wei, Feng Zhang, Rubing Li, Liye Mei, Dongyong Yang, Zhimin Deng, Rui Qu, Dongdong Tang, Du Wang, Fuling Zhou, Sheng Liu, Tailang Yin, Cheng Lei
{"title":"High-Throughput and Stain-Free Morphological Analysis of Sperm Using Optofluidic Time-Stretch Imaging Flow Cytometry.","authors":"Yueyun Weng, Yujie Zou, Yan Jin, Shubin Wei, Feng Zhang, Rubing Li, Liye Mei, Dongyong Yang, Zhimin Deng, Rui Qu, Dongdong Tang, Du Wang, Fuling Zhou, Sheng Liu, Tailang Yin, Cheng Lei","doi":"10.1002/jbio.202400560","DOIUrl":"https://doi.org/10.1002/jbio.202400560","url":null,"abstract":"<p><p>The incidence of male infertility has kept increasing year by year, severely affecting the sustainability of society. Sperm morphological analysis plays an important role in assessing sperm fertility. However, current sperm morphological analysis is usually performed using microscopic images of stained sperm, which requires complex staining operations, making it difficult to achieve a comprehensive and efficient diagnosis. In this work, we propose and experimentally demonstrate sperm morphological analysis with optofluidic time-stretch (OTS) imaging flow cytometry. Specifically, we capture the stain-free sperm images with high-throughput OTS imaging flow cytometry and analyze the morphological features using a U-Net network. The analysis of 40,000 images from 20 clinical semen samples indicates that our method achieves higher accuracy than the smear test and shows high concordance with the results using comprehensive methods of routine semen examination. This work provides a high-throughput, stain-free sperm morphological analysis method, which holds promise for a comprehensive evaluation of semen.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202400560"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143532272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Accurate Estimation of Methemoglobin and Oxygen Saturation in Skin Tissue Using Diffuse Reflectance Spectroscopy and Artificial Intelligence.
Journal of biophotonics Pub Date : 2025-02-26 DOI: 10.1002/jbio.202400413
Isra Sahli, Wesam Bachir, Moustafa Sayem El-Daher
{"title":"Accurate Estimation of Methemoglobin and Oxygen Saturation in Skin Tissue Using Diffuse Reflectance Spectroscopy and Artificial Intelligence.","authors":"Isra Sahli, Wesam Bachir, Moustafa Sayem El-Daher","doi":"10.1002/jbio.202400413","DOIUrl":"https://doi.org/10.1002/jbio.202400413","url":null,"abstract":"<p><p>In this paper, we present a noninvasive method for the accurate estimation of methemoglobin concentration. The proposed technique incorporates a novel machine learning model using the artificial neural network to detect methemoglobin and oxygen saturation from the diffuse reflectance spectra of skin tissue. Sixty-six spectra were simulated using a four-layer tissue model with varying oxygen saturation and methemoglobin concentration. A multifiber probe-based DRS setup in the visible and near-infrared wavelength range was used. The best accuracy, with a mean absolute error (MAE) of 0.0392% for the concentration of methemoglobin and 0.0273% for the percentage of oxygen saturation on the created data set, was achieved. Our method was also experimentally verified using DRS spectra collected from human subjects. Consequently, the findings demonstrate the ability of broadband DRS to noninvasively differentiate subtle changes in methemoglobin and hemoglobin levels despite their overlapping spectral features.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202400413"},"PeriodicalIF":0.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143517723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hyperspectral Imaging of Uterine Fibroids.
Journal of biophotonics Pub Date : 2025-02-25 DOI: 10.1002/jbio.202400499
Aidan M Therien, Jonah A Majumder, Arielle S Joasil, Daniella M Fodera, Kristin M Myers, Xiaowei Chen, Christine P Hendon
{"title":"Hyperspectral Imaging of Uterine Fibroids.","authors":"Aidan M Therien, Jonah A Majumder, Arielle S Joasil, Daniella M Fodera, Kristin M Myers, Xiaowei Chen, Christine P Hendon","doi":"10.1002/jbio.202400499","DOIUrl":"https://doi.org/10.1002/jbio.202400499","url":null,"abstract":"<p><p>Uterine fibroids are non-cancerous growths of the uterus that affect nearly 70%-80% of women in their lifetimes. Fibroids can cause severe pain, bleeding, and infertility. The main risk of recurrence is smaller fibroids, which are notoriously hard to detect, being missed during a surgical removal procedure, only to enlarge afterwards. In this work, hyperspectral imaging (HSI) datasets were acquired from samples from 10 patients after receiving a hysterectomy. Optical properties including absorption, scattering, and spectral morphology were extracted and fed into machine learning to classify regions as fibroid and myometrium. Top extracted optical features had significant contrast between fibroid and myometrium (p < 0.0001) and were used to train Random Forest (AUC: 0.9985 ± 0.001, Sensitivity: 0.9534 ± 0.019, Specificity: 0.9936 ± 0.009) and Logistic Regression (AUC: 0.9397 ± 0.013, Sensitivity: 0.8405 ± 0.023, Specificity: 0.8895 ± 0.032) with strong performance across testing splits. With HSI, there is contrast between fibroid and myometrium in the human uterus.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202400499"},"PeriodicalIF":0.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143506665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-Resolution Oil-Free Imaging of Chromosomes Using Fourier Ptychographic Microscopy. 利用傅立叶平片显微镜对染色体进行高分辨率无油成像。
Journal of biophotonics Pub Date : 2025-02-24 DOI: 10.1002/jbio.202400534
Changliang Yu, Yuguo Tang
{"title":"High-Resolution Oil-Free Imaging of Chromosomes Using Fourier Ptychographic Microscopy.","authors":"Changliang Yu, Yuguo Tang","doi":"10.1002/jbio.202400534","DOIUrl":"https://doi.org/10.1002/jbio.202400534","url":null,"abstract":"<p><p>In conventional microscopic imaging of chromosomes, the use of high numerical aperture (NA) oil-immersion objectives is essential. However, the use of oil-immersion objectives poses a significant challenge to automated imaging systems because it increases the risk of sample contamination and instrumental damage. The shallow depth of field (DOF) of oil-immersion objectives also demands more sophisticated mechanical focusing. Here, we introduce a chromosome oil-free microscopic imaging system based on Fourier Ptychographic Microscopy (FPM) technology. The system employs a 100×, 0.8 NA dry objective to achieve a half-pitch resolution of 194 nm at an incident wavelength of 524 nm. The reconstructed images of chromosomes surpassed the conventional imaging with a 100×, 1.25 NA oil-immersion objective. We also utilized digital refocusing methods to extend the effective DOF to ±2.4 μm. This study preliminarily validates the possibility of developing a new generation of chromosome scanners without using an oil-immersion objective.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202400534"},"PeriodicalIF":0.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143494369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Scattering Reduction and Axial Resolution Enhancement in Light-Sheet Fluorescence Microscopy.
Journal of biophotonics Pub Date : 2025-02-23 DOI: 10.1002/jbio.202400556
Yang Zhang, Runze Li, Xianghua Yu, Hao Miao, Ruiwen Yang, Xing Li, Junwei Min, Yanlong Yang, Dan Dan, Taiqiang Dai, Liang Kong, Baoli Yao
{"title":"Scattering Reduction and Axial Resolution Enhancement in Light-Sheet Fluorescence Microscopy.","authors":"Yang Zhang, Runze Li, Xianghua Yu, Hao Miao, Ruiwen Yang, Xing Li, Junwei Min, Yanlong Yang, Dan Dan, Taiqiang Dai, Liang Kong, Baoli Yao","doi":"10.1002/jbio.202400556","DOIUrl":"https://doi.org/10.1002/jbio.202400556","url":null,"abstract":"<p><p>Light-sheet fluorescence microscopy (LSFM) provides an ideal tool for long-term observation of live specimens due to its low photodamage and fast volumetric imaging speed. The wavefront distortions in the illumination path of LSFM will reduce the intensity and broaden the light-sheet thickness, thereby degrading the image quality. We propose to use the wavefront shaping technique to reduce the scattering effect and shrink the light-sheet thickness. Scanning the refocused laser beam to generate LS improves both the fluorescence intensity and the axial resolution. The axial resolution can be further enhanced by subtracting the two images captured via double scanning the samples with the refocused beam and the uncorrected scattered beam for each slice. The axial resolution is improved from 2.2 ± 0.3 to 1.5 ± 0.2 μm across the field of view of 270 μm × 270 μm. The effectiveness of the wavefront shaping subtraction method is demonstrated by imaging fluorescent beads and Aspergillus conidiophores behind a scattering medium.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202400556"},"PeriodicalIF":0.0,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143485077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spectral Differentiation of Esophageal Precancerous Lesion Staging and an Improved Feature Wavelength Selection Method Based on Enhanced Fox Algorithm.
Journal of biophotonics Pub Date : 2025-02-23 DOI: 10.1002/jbio.202400518
Jinbao Zhang, Shuangli Liu, Fanrong Wang, Li Wang, Jiamin Qin, Liming Wen, Weijia Wan
{"title":"Spectral Differentiation of Esophageal Precancerous Lesion Staging and an Improved Feature Wavelength Selection Method Based on Enhanced Fox Algorithm.","authors":"Jinbao Zhang, Shuangli Liu, Fanrong Wang, Li Wang, Jiamin Qin, Liming Wen, Weijia Wan","doi":"10.1002/jbio.202400518","DOIUrl":"https://doi.org/10.1002/jbio.202400518","url":null,"abstract":"<p><p>Near-infrared (NIR) spectroscopy, known for its non-destructive, rapid, and precise nature, captures spectral responses to chemical bond changes in cancerous tissues. This provides a promising approach for accurate cancer staging and identifying spectral differences between cancerous and healthy tissues. In this study, NIR data from esophageal lesions excised via endoscopic submucosal dissection were analyzed using partial least squares discriminant analysis (PLS-DA) to classify normal tissues, low-grade, and high-grade intraepithelial neoplasia, confirming its feasibility for staging diagnosis. To enhance wavelength selection, the FOX algorithm, a swarm intelligence optimization method, is improved with two modifications: a nonlinear time-varying sigmoid transfer function and mirror selection. These enhancements are combined to form an improved FOX algorithm (iFOX) for wavelength selection. iFOX effectively enhances the algorithm's stability while enhancing classification performance.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202400518"},"PeriodicalIF":0.0,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143485079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
External Validation of Raman Spectroscopy for Lyme Disease Diagnostics.
Journal of biophotonics Pub Date : 2025-02-20 DOI: 10.1002/jbio.202400520
Isaac D Juárez, Aidan P Holman, Elizabeth J Horn, Artem S Rogovskyy, Dmitry Kurouski
{"title":"External Validation of Raman Spectroscopy for Lyme Disease Diagnostics.","authors":"Isaac D Juárez, Aidan P Holman, Elizabeth J Horn, Artem S Rogovskyy, Dmitry Kurouski","doi":"10.1002/jbio.202400520","DOIUrl":"https://doi.org/10.1002/jbio.202400520","url":null,"abstract":"<p><p>Lyme disease (LD), caused by Borreliella burgdorferi, is the most common tick-borne illness in the United States, yet early-stage diagnosis remains challenging due to the limitations of current serological diagnostics. Raman spectroscopy (RS), paired with partial least squares discriminant analysis (PLS-DA), showed promise as an alternative diagnostic tool. Using RS, we analyzed 107 coded human blood samples (42 LD-positive and 65 LD-negative) obtained from the Lyme Disease Biobank. PLS-DA models showed nearly perfect internal validation performance with a sensitivity and specificity of 97.1% and 100.0%, respectively, indicating robust predictive capabilities. External validation of the developed chemometrics model with 80/20 training/validation split of all spectra gave true positive rates of 92.7% and 87.3% for serological positive and negative spectra, respectively. These findings highlight the potential of RS as a rapid and noninvasive diagnostic platform for LD, particularly when integrated with machine learning.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202400520"},"PeriodicalIF":0.0,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143470437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development and Validation of a Noninvasive Diffuse Reflectance Spectroscopic Method for Bilirubin Estimation in Neonates.
Journal of biophotonics Pub Date : 2025-02-20 DOI: 10.1002/jbio.202400505
Chitra R, Shanthi Prince, Ashok Chandrasekaran, Subash Sundar
{"title":"Development and Validation of a Noninvasive Diffuse Reflectance Spectroscopic Method for Bilirubin Estimation in Neonates.","authors":"Chitra R, Shanthi Prince, Ashok Chandrasekaran, Subash Sundar","doi":"10.1002/jbio.202400505","DOIUrl":"https://doi.org/10.1002/jbio.202400505","url":null,"abstract":"<p><p>Jaundice due to excess bilirubin buildup in neonates remains an alarming problem, especially during the very first week of postnatal life. The common method of measuring total serum bilirubin (TSB) levels involves invasive blood testing, which is time-consuming and uncomfortable for neonates. While noninvasive transcutaneous bilirubinometers (TcB) are available, that often lack accuracy due to interference from other biological chromophores. This study aims to improve bilirubin assessment by developing a noninvasive system that uses diffuse reflectance spectroscopy and a novel algorithm accounting for chromophores like melanin and hemoglobin. Focusing on the sternum as the measurement site, spectra are collected from 285 newborns. Using the proposed algorithm, the bilirubin concentration is calculated at 450, 460, and 470 nm. Compared to TSB levels, the proposed method demonstrated strong accuracy with an average bias of -0.10 mg/dL and narrower limits of agreement of 4.85 mg/dL at 470 nm.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202400505"},"PeriodicalIF":0.0,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143470436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fluorescence Lifetime Imaging Techniques-A Review on Principles, Applications and Clinical Relevance.
Journal of biophotonics Pub Date : 2025-02-19 DOI: 10.1002/jbio.202400450
V I Shcheslavskiy, M V Shirmanova, K S Yashin, A C Rück, M C Skala, W Becker
{"title":"Fluorescence Lifetime Imaging Techniques-A Review on Principles, Applications and Clinical Relevance.","authors":"V I Shcheslavskiy, M V Shirmanova, K S Yashin, A C Rück, M C Skala, W Becker","doi":"10.1002/jbio.202400450","DOIUrl":"https://doi.org/10.1002/jbio.202400450","url":null,"abstract":"<p><p>This article gives an overview of the most frequently used fluorescence-lifetime imaging (FLIM) techniques, their capabilities, and typical applications. Starting from a general introduction to fluorescence and phosphorescence lifetime, we will show that the fluorescence lifetime or, more accurately, the fluorescence decay function of a fluorophore is a direct indicator of the interaction with its molecular environment. FLIM is therefore more than a simple contrast technique in microscopy-it is a technique of molecular imaging. FLIM techniques can be classified into time-domain and frequency-domain techniques, analogue and photon counting techniques, and scanning and wide-field techniques. Starting from an overview of these general technical principles we will describe the features and peculiarities of the different FLIM techniques in use. An extended section is dedicated to TCSPC FLIM, addressing unique capabilities that make the technique especially interesting to FLIM of biological systems.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202400450"},"PeriodicalIF":0.0,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143461200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photobiomodulation of Blue Light Enhance Melanoma Cellular Recovery Following Viral Infection via Mitochondrial Pathways.
Journal of biophotonics Pub Date : 2025-02-17 DOI: 10.1002/jbio.202400525
Haokuan Qin, Hui Jiang, Shijie Huang, Jiali Yang, Qiqi Fu, Ruixiao Zhang, Zeqing Chen, Muqing Liu
{"title":"Photobiomodulation of Blue Light Enhance Melanoma Cellular Recovery Following Viral Infection via Mitochondrial Pathways.","authors":"Haokuan Qin, Hui Jiang, Shijie Huang, Jiali Yang, Qiqi Fu, Ruixiao Zhang, Zeqing Chen, Muqing Liu","doi":"10.1002/jbio.202400525","DOIUrl":"https://doi.org/10.1002/jbio.202400525","url":null,"abstract":"<p><p>This study aimed to elucidate the response of B16F10 cells to blue light following infection with an empty adenoviral vector (Adv). Twenty-four hours post-infection, the B16F10 cells underwent phototherapy, and a range of cellular parameters were assessed, including cell viability, melanin content, cell cycle progression, reactive oxygen species (ROS) production, mitochondrial membrane potential (MMP), apoptosis, necrosis, lactate dehydrogenase (LDH) release, and autophagy. The findings indicated that Adv infection elevated melanin content and autophagy, resulting in G1 phase cell cycle arrest. In comparison to the control group, light-treated, Adv-infected cells exhibited reduced inhibition rates, LDH release, apoptosis, and necrosis, while MMP and ROS levels were elevated. The study concluded that although Adv, as a gene delivery vector in conjunction with light therapy, significantly modulated melanin content and autophagy. Moreover, while melanin's light absorption capacity mitigated MMP reduction, the resultant excitation molecules generated ROS, enhancing oxidative stress.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202400525"},"PeriodicalIF":0.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143434645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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