Lens-Free Fluorometer Can Monitor Water Quality in Low-Resource Settings
Researchers from the Phutung Research Institute, the University of São Paulo, and the University of York showed that a lensless fluorometer is generally better than a lensed system for monitoring unsafe bacteria levels in water.
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Squishy Lasers Could Reveal Secrets of Cell Growth
Researchers at the University of St. Andrews and the University of Cologne have developed lasers that they have described as “squishy.” These devices could help solve the biological mysteries behind the development of embryos and cancerous tumors.
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Optical Magnetometers Measure Indicators of Potential Disease
A wearable optical device that records activity in the autonomic nervous system could provide medical professionals with a tool for detecting early signs of physical stress. The device is based on ventral cervical magnetoneurography, a method that uses magnetic field sensors to trace and visualize neural activity along peripheral nerves and identify cervical nerve firing noninvasively in real time.
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Retinal Imaging with Adaptive Optics Optical Coherence Tomography
Wed, Sep 25, 2024 10:00 AM - 11:00 AM EDT
When imaging the living human eye, even if a person has perfect vision, blur caused by ocular aberrations of the eye limits resolution. This blur rapidly fluctuates due to a number of factors, such as the impact of the heartbeat. Consequently, it is not possible using conventional methods, such as customized contact lenses, to correct for this blur. This blur can be corrected by using adaptive optics, which is a technique used in astronomy to remove the blurring effect of the atmosphere when acquiring images with ground-based telescopes. When combining adaptive optics with OCT, it is possible to image the structure and function of the retina at the single-cell level. This technology is revolutionizing the early detection of retinal disease. Given that the retina is a window to the brain, this ability opens the possibility of using retinal imaging for presymptomatic detection of neurodegenerative and psychiatric diseases.
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Features
Raman Spectroscopy and Mohs Surgery for Basal Cell Carcinoma, Raman Spectroscopy and Atopic Dermatitis, Laser Damage Threshold in Dermatology, OCT for Dermatology Applications, and AI and Imaging in Dermatology
Photonics Media is currently seeking technical feature articles on a variety of topics for publication in our magazine BioPhotonics. Please submit an informal 100-word abstract to Senior Editor Doug Farmer at [email protected], or use our online submission form www.photonics.com/submitfeature.aspx.
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