Near Infrared Therapy
Near Infrared Therapy - Related Videos
08:11
Infrared Spectroscopy
0 Views •
2023
Source: Vy M. Dong and Zhiwei Chen, Department of Chemistry, University of California, Irvine, CA This experiment will demonstrate the use of infrared (IR) spectroscopy (also known as vibrational spectroscopy) to elucidate the identity of an unknown compound by identifying the functional group(s) present. IR spectra will be obtained on an IR spectrometer using the attenuated total reflection (ATR) sampling technique with a neat sample of the unknown.
02:29
Modulating Sensory Neuronal Signaling in a Mouse Model Using Near Infrared Light
0 Views •
2025
Source: Zhang, L., et al. Near Infrared (NIr) Light Increases Expression of a Marker of Mitochondrial Function in the Mouse Vestibular Sensory Epithelium. J. Vis. Exp. (2015)This video demonstrates the process of applying NIr light to a shaved mouse scalp to activate vestibular neurons and stimulate superoxide dismutase-1 (SOD-1) production, supporting neuronal function. The procedure highlights NIr therapy as a neuroprotective strategy.
09:38
Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
0 Views •
Cited by 4 •
2015
We describe the generation of far-infrared radiation using an optically pumped molecular laser along with the measurement of their frequencies with heterodyne techniques. The experimental system and techniques are demonstrated using difluoromethane (CH2F2) as the laser medium whose results include three new laser emissions and eight measured laser frequencies.
10:12
Near-infrared Fluorescence Imaging of Abdominal Aortic Aneurysms
0 Views •
2023
Source: Arvin H. Soepriatna1, Kelsey A. Bullens2, and Craig J. Goergen1 1 Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 2 Department of Biochemistry, Purdue University, West Lafayette, Indiana Near-infrared fluorescence (NIRF) imaging is an exciting optical technique that utilizes fluorescent probes to visualize complex biomolecular assemblies in tissues. NIRF imaging has many advantages over conventional imaging methods for noninvasive imaging of diseases.
01:45
Visualization of Mouse Cerebral Thrombi Using Near-Infrared Fluorescence Imaging
0 Views •
2025
Source: Kim, D. E., et al. Combined Near-infrared Fluorescent Imaging and Micro-computed Tomography for Directly Visualizing Cerebral Thromboemboli. J. Vis. Exp. (2016)This video demonstrates near-infrared fluorescent (NIRF) imaging to visualize thrombi in excised brain tissue labeled with a fibrin-specific probe. Near-infrared light excites the probe, causing the thrombus to fluoresce, enabling high-contrast thrombi visualization in the major cerebral artery and small cortical blood vessels.
FAQs
These parameters jointly determine how much optical energy reaches tissue and how the tissue responds. Wavelength affects photon penetration, while power and exposure time shape the delivered exposure. Investigators must balance these variables because a response associated with photobiomodulation is intended to occur without relying primarily on heating. Controlled parameter selection therefore supports meaningful comparisons between treatments.
Photobiomodulation may influence mitochondrial activity, cellular signaling, and local blood flow. These processes provide distinct biological pathways through which engineered light delivery can affect tissue responses. Studying them helps researchers connect device settings with observed therapeutic effects, rather than evaluating treatment only by its immediate physical exposure or by temperature changes.
Irradiance describes the delivered optical power over an area, while treatment geometry determines how that energy is distributed across the target. LED and laser systems can therefore produce different exposure patterns even when their nominal settings appear similar. Engineering control of these features improves dosimetry, supports repeatable experiments, and helps relate tissue responses to specific device conditions.
An evaluation begins by selecting an LED- or laser-based device and defining its wavelength, power, exposure time, irradiance, and treatment geometry. Researchers then measure tissue responses under controlled conditions and include safety testing. This workflow links the physical delivery system to biological outcomes, helping determine whether the observed effects are consistent and suitable for further therapeutic investigation.
Studies investigate this approach in pain management, wound repair, rehabilitation, and neurological research. Each area can require different exposure conditions and response measurements, so the device must be evaluated in relation to its intended use. The broad application range also makes the technique relevant to engineering research on adaptable energy-delivery systems for biological tissues.
Engineering contributes by controlling device output, exposure geometry, dosimetry, and safety testing. These controls make treatment conditions more consistent and help researchers interpret whether a biological response reflects the intended light exposure. Reliable measurement is especially important when studies examine therapeutic outcomes such as pain, wound repair, rehabilitation effects, or neurological responses.