منابع مشابه
Preparation of Electrolyte-free Gelatin
The method described here is a modification of the one employed by Loeb. His method consisted principally in bringing powdered gelatin, by means of acetic acid, to a pH slightly below the isoelectric point and then washing it several times with distilled water. This process brought about a complete removal of various cations. No special care was taken to remove anions except so far as they were...
متن کاملCationization of Gelatin and Preparation of Cationic Gelatin-Coated Stens
Effects of Human pE-NTPDase on rabbit platelet aggregation We had previously purified human pE-NTPDase glycoprotein 1 , and in this study we evaluated the effects of human pE-NTPDase on rabbit platelet aggregation induced by ADP as previously described. 1,2 Rabbit platelet-rich plasma (3×10 8 platelets/ml) was incubated in siliconized cuvettes at 37C for 5 minutes with or without purified huma...
متن کاملOrdnance gelatin for ballistic studies. Detrimental effect of excess heat used in gelatin preparation.
Most users of ordnance gelatin for ballistics studies are apparently unaware of the detrimental effects on this tissue simulant's properties caused by excess heating in reconstitution of the gelatin powder. Material published by the Gelatin Manufacturers Institute of America states that heating gelatin above 40 degrees C can be detrimental to its properties. The manufacturer of type 250 A Ordna...
متن کاملPreparation and Characterization of Chicken Skin Gelatin as an Alternative to Mammalian Gelatin
The aims of this study were to report for the first time, the extraction and physico-chemical properties of chicken skin gelatin compared to bovine gelatin. Extracted chicken skin gelatin 6.67 % (w/v) had a higher bloom value (355 ± 1.48 g) than bovine gelatin (259 ± 0.71 g). The dynamic viscoelastic profile of chicken gelatin exhibited higher viscous and elastic modulus values compared to bovi...
متن کاملPreparation and Properties of Gelatin Fibers Fabricated by Dry Spinning
Gelatin fibers have been prepared by dry spinning based on the sol-gel transition phenomena of aqueous gelatin solutions. This method is simple and environmentally friendly because only water is used for the spinning, thereby avoiding the use of any toxic organic solvents. A sol-state aqueous solution of gelatin at 50 ̋C was extruded into air through a thin nozzle at room temperature followed b...
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ژورنال
عنوان ژورنال: Journal of General Physiology
سال: 1928
ISSN: 1540-7748,0022-1295
DOI: 10.1085/jgp.11.5.477