Article
Chemistry, Analytical
Qitao Tan, Yan Wang, Zengyong Li, Daifa Wang, Wing-Kai Lam, Duo Wai-Chi Wong, Yinghu Peng, Guoxin Zhang, Ming Zhang
Summary: This study investigated the relationship between muscle hemodynamic response during recovery and exercise quantity, finding that local microvascular regulators significantly contribute to blood volume oscillations, which are in turn related to the amount of exercise.
Article
Biochemical Research Methods
Yameng Li, Pu-Chun Mo, Cheng-Feng Lin, Serah Pauly, Nikeeta Kundal, Manuel E. Hernandez, Yih-Kuen Jan
Summary: This study aims to investigate the effects of pressure and duration of cupping therapy on the hemodynamic activity of the muscle. The results showed a significant interaction between pressure and duration on deoxy-hemoglobin. There were also significant main effects of pressure and duration on oxyhemoglobin. Cupping therapy at -300 mmHg for 10 min resulted in higher concentrations of oxyhemoglobin and deoxy-hemoglobin.
JOURNAL OF BIOPHOTONICS
(2023)
Article
Neurosciences
Dominik G. Wyser, Christoph M. Kanzler, Lena Salzmann, Olivier Lambercy, Martin Wolf, Felix Scholkmann, Roger Gassert
Summary: This study investigated the effect of short-channel regression (SCR) on improving the reproducibility of fNIRS measurements on a single-subject level. The results showed that SCR increased the reproducibility of fNIRS measurements and provided insights for reliable use of fNIRS neuroimaging in single subjects for research and clinical applications.
Article
Biophysics
Anas Rashid, Silvestro Roatta
Summary: The study aimed to test the feasibility of near-infrared spectroscopy (NIRS) monitoring of the human temporal muscle. It observed the hemodynamic changes in the muscle and brain during teeth clenching and hyperventilation in healthy subjects. The results demonstrated that this technique is suitable for monitoring tissue oxygenation and hemodynamic changes in the human temporal muscle.
PHYSIOLOGICAL MEASUREMENT
(2023)
Article
Multidisciplinary Sciences
A. Machado, Z. Cai, T. Vincent, G. Pellegrino, J-M Lina, E. Kobayashi, C. Grova
Summary: The study assessed the relevance of deconvolution of hemodynamic response functions (HRF) following diffuse optical tomography (DOT) constrained along the cortical surface. Results demonstrated that deconvolution after DOT was able to accurately recover a large variability of HRFs and reconstruct the temporal dynamics of HRFs in real conditions accurately. The study found good performance of deconvolution analysis for signal to noise ratio (SNR) levels encountered in their applications.
SCIENTIFIC REPORTS
(2021)
Article
Veterinary Sciences
Lorenzo Frabasile, Caterina Amendola, Mauro Buttafava, Matteo Chincarini, Davide Contini, Bruno Cozzi, Donatella De Zani, Giulia Guerri, Michele Lacerenza, Michela Minero, Lucio Petrizzi, Lina Qiu, Vanessa Rabbogliatti, Emanuela Rossi, Lorenzo Spinelli, Paola Stratico, Giorgio Vignola, Davide Danilo Zani, Emanuela Dalla Costa, Alessandro Torricelli
Summary: Biosensors in veterinary medicine are a noninvasive method to determine the health status and welfare level of animals. Near infrared spectroscopy (NIRS) is suggested as a potential technology for this application. This study presents preliminary in vivo NIRS measurements of optical and hemodynamic properties in tissue domestic animals, revealing significant variations among tissue types and species. The results show the feasibility of TD NIRS measurements in domestic animals and suggest different properties in horses and dogs due to adipose layers and muscle coverings.
FRONTIERS IN VETERINARY SCIENCE
(2023)
Article
Neurosciences
J. Adam Noah, Xian Zhang, Swethasri Dravida, Courtney DiCocco, Tatsuya Suzuki, Richard N. Aslin, Ilias Tachtsidis, Joy Hirsch
Summary: This study compared short-channel temporal regression and spatial principal component filtering strategies for removing non-neural signals in fNIRS data, finding that both methods effectively eliminate non-neural components. Utilizing either technique is sufficient for removing these interfering signals.
Article
Multidisciplinary Sciences
Alistair D. Bounds, John M. Girkin
Summary: This study presents a spatial frequency domain imaging technique to characterize the optical properties of dental tissue, enabling easy differentiation between different types of dental tissues based on reduced scattering coefficients. The use of near-infrared light at 850 nm allows high depth penetration into the tissue, simplifying the analysis method and providing a tool to guide dentists' attention to areas of interest and potential demineralization.
SCIENTIFIC REPORTS
(2021)
Article
Food Science & Technology
Jamille Carvalho Souza, Celio Pasquini, Maria C. Hespanhol
Summary: The study evaluated two low-cost, miniaturized near-infrared (NIR) spectrophotometers in assessing several traits of commercial ground roasted coffee. The results show that these instruments have the potential to characterize coffee qualitatively and quantitatively, with a certain ability for discrimination and prediction.
Article
Food Science & Technology
Welder Angelo Baldassini, Otavio Rodrigues Machado Neto, Talita Tanaka Fernandes, Hyezza de Paula Ament, Matheus Geraldine Luz, Bismarck Moreira Santiago, Rogerio Abdallah Curi, Luis Artur Loyola Chardulo
Summary: This study found that meat tenderness can be accurately measured using the CT3 device at different cooking temperatures, with results close to those obtained using the WBSF, but not suitable for evaluation using the FHT device.
JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE
(2021)
Review
Biology
Marlies Michi, Max Madu, Henri A. H. Winters, Daniel M. de Bruin, Joost R. van der Vorst, Caroline Driessen
Summary: The evidence on bone perfusion measured with near-infrared fluorescence (NIRF) is limited, and more clinical studies are needed to evaluate its clinical significance.
Article
Engineering, Electrical & Electronic
Dalchand Ahirwar, Dheeraj Khurana, Shubhajit Roy Chowdhury
Summary: This research focuses on detecting ischemic stroke conditions by adding new hemodynamic biomarker information to the proposed low-cost wearable point-of-care diagnostic near-infrared spectroscopy (NIRS) device. A new protocol-based sequence of experiments has been carried out to validate the system performance and temporal characteristics of biomarkers for ischemic condition detection.
IEEE SENSORS JOURNAL
(2022)
Article
Engineering, Biomedical
Chengcheng Tao, Xinxing Miao, Jun Yan, Xiang Xiao, Renfei Wu, Qinghua Cao, Zhexiang Wang, Rui Lv, Tianjin Ge, Jian Liu
Summary: This study presents a new method for eliminating hypoxic tumors using nanoantenna-sensitized engineered bacteria in a highly effective and dual selective manner. The engineered bacteria are equipped with upconversion nanoparticles as antennas on their surface, allowing the NIR laser-switchable generation of HlyE perforin to kill cancer cells. The enrichment of the engineered bacteria on hypoxic tumor sites, combined with localized NIR laser irradiation, improves the efficacy and selectivity of tumor suppression, minimizing potential side effects. This concept of using nanoantenna-sensitized engineered bacteria offers a promising approach for addressing the challenges of hypoxic tumors in cancer therapies.
ACTA BIOMATERIALIA
(2023)
Article
Dermatology
Fanfan Li, Min Wang, Ting Wang, Xiaolan Wang, Xiaoli Ma, Hua He, Guojing Ma, Dan Zhao, Qin Yue, Panpan Wang, Minjie Ma
Summary: Smartphone-based handheld thermal imagers can be used to assess healing progress and predict the healing status of surgical incisions. In this study, thermal images and temperature readings were obtained from 40 patients for 7 days postoperatively. The temperature readings showed non-linear trajectory changes, and readings on day 4 achieved high prediction capability for healing status at 1-2 months, with sensitivities and specificities of 91.67% and 85.71% respectively, suggesting a promising clinical application of portable thermography in assessing incision healing dynamics and guiding decision algorithms.
INTERNATIONAL WOUND JOURNAL
(2023)
Article
Neurosciences
Uzair Hakim, Paola Pinti, Adam J. Noah, Xian Zhang, Paul Burgess, Antonia Hamilton, Joy Hirsch, Ilias Tachtsidis
Summary: In this study, a new hemodynamic signal (HPC) was developed to combine HbO(2) and HHb for localization of functional activation. The HPC signal showed comparable accuracy to HHb and was more robust against false positives.
