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Biophotonics can also be described as the "development and application of optical techniques, particularly imaging, to the study of biological molecules, cells and tissue". [2] One of the main benefits of using the optical techniques which make up biophotonics is that they preserve the integrity of the biological cells being examined. [3] [4]
The term biophoton used in this narrow sense should not be confused with the broader field of biophotonics, which studies the general interaction of light with biological systems. Biological tissues typically produce an observed radiant emittance in the visible and ultraviolet frequencies ranging from 10 −17 to 10 −23 W/cm 2 (approx 1-1000 ...
Biophotonics employs tools from the field of photonics to the study of biology. Biophotonics mainly focuses on improving medical diagnostic abilities (for example for cancer or infectious diseases) [ 14 ] but can also be used for environmental or other applications.
He has served as executive director of the Institute for Research in Lasers, Photonics and Biophotonics. Prasad has contributed to the development of photonic materials for biomedical applications including nanoshells containing various diagnostic and therapeutic agents [ 5 ] [ 2 ] He has published a book entitled "Nanophotonics,"."
Reef cuttlefish (a cephalopod) using dynamic camouflage to blend in to its surroundings. Bio-inspired photonics or bio-inspired optical materials are the application of biomimicry (the use of natural models, systems, and elements for human innovations [1]) to the field of photonics (the science and application of light generation, detection, and manipulation [2]).
Since the introduction of the digital camera in the mid-1990s, several new digital phase-imaging methods have been developed, collectively known as quantitative phase-contrast microscopy. These methods digitally create two separate images, an ordinary bright-field image and a so-called phase-shift image .
Elastography was first used in 1979 [4] and subsequent progress in the field has been extensive, based largely on ultrasound, and magnetic resonance imaging. [5] [6] Optical techniques have also been proposed for elastography to probe mechanical properties of tissues dates back to at least the 1950s. [7]
Two-photon excitation microscopy of mouse intestine.Red: actin.Green: cell nuclei.Blue: mucus of goblet cells.Obtained at 780 nm using a Ti-sapphire laser.. Two-photon excitation microscopy (TPEF or 2PEF) is a fluorescence imaging technique that is particularly well-suited to image scattering living tissue of up to about one millimeter in thickness.