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Showing papers by "Edward S. Fry published in 2014"


Journal ArticleDOI
TL;DR: The detection of femtomolar concentrations of urobilin, a metabolic byproduct of heme metabolism that is excreted in both human and animal waste in water, was achieved through the use of an integrating cavity, which could allow for real-time assessment of water quality without the need for expensive laboratory equipment.
Abstract: Clean water is paramount to human health. In this article, we present a technique for detection of trace amounts of human or animal waste products in water using fluorescence emission cavity-enhanced spectroscopy. The detection of femtomolar concentrations of urobilin, a metabolic byproduct of heme metabolism that is excreted in both human and animal waste in water, was achieved through the use of an integrating cavity. This technique could allow for real-time assessment of water quality without the need for expensive laboratory equipment.

53 citations


Proceedings ArticleDOI
TL;DR: In this paper, a simple method for accurate and precise measurement of the optical absorption coefficient of cellular structures, even in the presence of strong scattering, was reported, using retinal pigment epithelium cells.
Abstract: We report a simple method for accurate and precise measurement of the optical absorption coefficient of cellular structures, even in the presence of strong scattering. Experimental results are discussed using retinal pigment epithelium cells.

6 citations