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  • Volume 7, Issue 5
  • Volume 7, Issue 5

    More content from Volume 7, Issue 5

    FIGURE 1. Each of the major biological chromophores has an absorption spectra. The wavelength of light needed to activate each of these correlates with a semiconductor laser material. Above are shown typical solid-state lasers used for these wavelengths. Penetration depth of light is strongly dependent on wavelength, and must be considered when determining the energy for a particular application.
    Advances in semiconductor diode laser sources are facilitating the migration of medical and aesthetic lasers to consumer markets. Semiconductor diode lasers offer advantages over...
    Sept. 16, 2014
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    With a resolution of 1-2 microns, micro-OCT is the only noninvasive method able to comprehensively and simultaneously study both the subcellular structures and functions important...
    Sept. 16, 2014
    Two entities working on photonics-based biomedicine have recently attracted funding in the same amount: $1.4 million.
    Sept. 16, 2014
    The China Food and Drug Administration has given clearance to Bruker Corp. to market and sell its in vitro diagnostics MALDI Biotyper system as a medical device for identifying...
    Sept. 16, 2014
    The first at-home, noninvasive test for colorectal cancer, by Exact Sciences, analyzes DNA and biomarkers using fluorescence.
    Biophotonics-based systems earning recent regulatory approval include a welcome advance in colorectal cancer screening that gives patients a pass on the usual dietary restrictions...
    Sept. 16, 2014
    Anita Goel, MD, Ph.D., who was a featured speaker at Strategies in Biophotonics (Boston; Sept. 9-11, 2014), pursues global health advances as chairman and CEO of both Nanobiosym Inc. (NBS) and Nanobiosym Diagnostics.
    Dr. Anita Goel's ultimate goal, to understand living systems, has led her on a 20-year quest to help decentralize, mobilize, and personalize medicine.
    Sept. 16, 2014
    "Potential applications in medicine are exciting," says J. Gary Eden, professor of electrical and computer engineering (ECE) at the University of Illinois Urbana-Champaign (UIUC...
    Sept. 16, 2014
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    Singlet oxygen, the first excited state of molecular oxygen, is a highly reactive species that plays an important role in a wide range of biological processes, including cell ...
    Sept. 16, 2014
    A powerful new imaging technology involving femtosecond laser pulses and bioluminescent proteins is fast enough to observe life processes as they happen at the molecular level...
    Sept. 16, 2014
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    Nanoparticles suspended in liquid, ingested by patients, promises to enable photoacoustic tomography (PAT) imaging for a noninvasive, real-time view of the small intestine.
    Sept. 16, 2014
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    A new discovery could improve medical imaging within biological tissue: Physicists from the University of Twente and Yale University found that light traveling through a diffusing...
    Sept. 16, 2014
    A portable, inexpensive, and microchip-based fluorescence biosensor could improve Type 1 diabetes diagnosis and care, and help researchers better understand the disease.
    Sept. 16, 2014
    Image courtesy of Camp/NIST
    High-speed BCARS allows detailed mapping of specific components of tissue samples. A false-color BCARS image of mouse liver tissue (left) picks out cell nuclei in blue, collagen in orange, and proteins in green. An image of tumor and normal brain tissue from a mouse (right) has been colored to show cell nuclei in blue, lipids in red, and red blood cells in green. Images show an area about 200 µm across.
    A new form of spontaneous Raman spectroscopy delivers signals 10,000 times stronger than those obtained from spontaneous Raman scattering, and 100 times stronger than signals ...
    Sept. 16, 2014
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    On average, a new study on optogenetics is reported every day. That's been the trend for the past two years.
    Sept. 15, 2014