منابع مشابه
The interaction of proteins with silicic acid.
Although silicon is a constituent of normal animal tissues, silicic acid formed by the dissolution of inhaled quartz particles can induce the formation of pathological lesions in which the normal tissue is replaced by fibrotic tissue arranged concentrically around the silica particles. The mechanism of the change which constitutes the disease, silicosis, is unknown. Schulman & Rideal (1937) dem...
متن کاملLiv. the Biochemistry of Silicic Acid
THE presence of silica in blood, and the much larger amounts sometimes found in urine, indicate that silica is appreciably soluble in body fluids. The determination of such solubility, however, is a matter of considerable difficulty and different results have been obtained by various workers, owing to the operation of such variable factors as particle size, concentration of suspension, method o...
متن کاملCxxix. the Biochemistry of Silicic Acid
OF the several colorimetric methods which have been described for the estimation of small amounts of silica, probably that of Dienert and Wandenbulche [1923] has met with most favour. The principle of this method is the production of a yellow silicomolybdic acid complex; it was first studied by Schreiner [1903] and Lincoln and Barker [1904]. Winkler [1914] used a similar method for studying the...
متن کاملSilicic acid regeneration from estuarine sediment cores*
The release of silicic acid from sediments is known to play a n important role in determining the silicic acid concentration in the water columns of estuaries, but factors controlling the rate of release are poorly understood. Silicic acid efflux from sandy Chesapeake Bay sediment cores that were maintained in the dark was strongly dependent on biogenic silica deposition, temperature and salini...
متن کاملBiological and therapeutic effects of ortho-silicic acid and some ortho-silicic acid-releasing compounds: New perspectives for therapy
Silicon (Si) is the most abundant element present in the Earth's crust besides oxygen. However, the exact biological roles of silicon remain unknown. Moreover, the ortho-silicic acid (H4SiO4), as a major form of bioavailable silicon for both humans and animals, has not been given adequate attention so far. Silicon has already been associated with bone mineralization, collagen synthesis, skin, h...
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 1921
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja01441a011