منابع مشابه
Clear view, clear benefit.
n this issue of the Journal, a clinical investigation by Ozaki et al focuses on the flushing solution used for image acquisition with frequency-domain optical coherence tomography (FD-OCT).1 The authors present the cross-sectional area measurement as a quantitative evaluation using low-molecular dextran L (LMD-L) approximate to that of contrast media, and the non-inferiority of LMD-L to contras...
متن کاملColorimetric Determination of Ambient Ozone using Indigo Blue Droplet
Um método simples e sensível, baseado em uma gota líquida, é descrito para medida do ozônio atmosférico. Uma gota de 30 μL de solução de índigo azul é suspensa em uma corrente de ar para amostragem. O ozônio coletado reage com a solução de índigo azul, provocando seu descoramento. O sensor colorimétrico é composto por duas fibras ópticas; a fonte de luz monocromática usada foi um LED vermelho (...
متن کاملEarly pre-Hispanic use of indigo blue in Peru
Archaeological research has identified the use of cultivated cotton (Gossypium barbadense) in the ancient Andes dating back to at least 7800 years ago. Because of unusual circumstances of preservation, 6000-year-old cotton fabrics from the Preceramic site of Huaca Prieta on the north coast of Peru retained traces of a blue pigment that was analyzed and positively identified as an indigoid dye (...
متن کاملA crystal-clear view
S imple biominerals are composed of complex structures, which often have precise architectural order over several length scales. TIlis amazing architecture contributes to their superior strength and toughness, allowing them to outperform synthetic materials. Biominerals rely heavily on their biological constituents, such as biomacromolecules, for' regulation of mineralization. Pathological mine...
متن کاملA clear view
eye lens is composed of cells of only one type — lens fibre cells — which derive from a monolayer of undifferentiated epithelial cells covering the anterior surface of the lens. In the bulk of the lens, these cells are arranged in concentric sheets, much like the layers of an onion. In order to minimise light scatter in the lens, the fibre cells have to be precisely aligned. The scanning electr...
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ژورنال
عنوان ژورنال: Materials Today
سال: 2009
ISSN: 1369-7021
DOI: 10.1016/s1369-7021(09)70194-4