Gelatin complexing

The biologic half-lives of ACTHi 39 and ACTHi 24 are under 20 minutes. Tissue uptake occurs in the liver and kidneys. ACTHi 39 is transformed into a biologically inactive substance, probably by modification of a side chain. ACTH is not excreted in the urine in significant amounts. The effects of long-acting repository forms of porcine corticotropin persist for up to 18 hours with a gelatin complex of the peptide and up to several days with a zinc hydroxide complex. 

Complex colloids can be characterized advantageously by a combination of Fl-FFF with different analytical or other FFF techniques, yielding supplemental information. Examples reported in the literature are combinations of Fl-FFF and S-FFF for size (Fl-FFF) and density (S-FFF) as well as the thickness and density of the shell of core shell latexes [402],El-FFF for the charge and composition of emulsions [403],Th-FFF for the characterization of the size and composition of core shell latexes [404] and, finally, with SEC for the particle size distribution and stoichiometry of gelatin complexes with poly(styrene sulfonate) and poly(2-acrylamido-2-methylpropane sulfonate) [405]. 

Tan, J.S. Harrison, C.A. Li, J.T. Caldwell, K.D. Characterization of soluble polyelectrolyte-gelatin complexes by differential size-exclusion chromatography and flow-field flow fractionation. J. Polym. Sci., Part B, Polym. Phys. 

Pal T, Ganguly A, Maity DS. 1986. Use of a silver gelatin complex for the microdetermination of hydrogen sulphide in the atmosphere. Analyst 111 691-693. 

A combination of thermally induced phase separation and an industrial knitting technique was used to produce a porous chitosan-gelatin complex Scaffold prepared using... 

The calcium cation produces many relatively insoluble salts. The most insoluble is calcium oxalate. Oxalic acid is used to demonstrate the presence of calcium in a liquid as it causes turbidity and precipitation. Calcium tartrate is also relatively insoluble, especially in the presence of ethanol (Section 1.6.5). In the same way, calcium gluconate and mucate, present in wine made from botrytized grapes, are reputed to be responsible for crystalline turbidity (Section 1.2.2). Calcium concentrations in white wines are between 80 and 140 mg/1, while they are slightly lower in red wines. The calcium content may increase following deacidification with calcium carbonate. As calcium is divalent, it is more energetically involved than potassium in colloid flocculation and precipitation, e.g. ferric phosphate, tannin-gelatin complexes, etc. 

To further characterise the interaction between the CS-PLA-PEG-gelatin NP particles and RIF, samples were analysed using Fourier-Transform infrared (FTIR) spectroscopy. The FTIR spectra of GS-PLA, CS-PLA-PEG and CS-PLA-PEG-gelatin complexes at 10% RIF were determined. 

McMullen, J. N., D. W. Newton, and C. H. Becker, Pectin-gelatin complex coacervates II Effect of microencapsulated sulfamerazine on size, morphology, recovery, and extraction of water-dispersible microglobules. J. Pharm. ScL, 73(12) (1984) 1799-1803. 

In turbidimetric titration, a polyelectrolyte is added incrementally to another highly dilute polyelectrolyte solution and the intensity of the light scattered by or the turbidity due to complex or precipitate formation is measured. In this colloid titration, turbidity is recorded as a function of titrant volume and the end point indicated by maximum turbidity is used to ascertain the stoichiometry of complex formation as shown in Figure 56.5. Jiang and Zhu" used colloid titration to investigate PAA-gelatin complexation and Tsuboi et al." used it to study complexation of papain with potassium poly(vinylsulfonate) (KPVS). 

Jiang, H.L., Zhu, K.J. Polyanion/gelatin complexes as pH-sensitive gels for controlled protein. J. Appl. 

Saravanan M., Rao K. R (2010). Pectin-gelatin and alginate-gelatin complex coacervation for controlled drug delivery Influence of anionic polysaccharides and drugs being encapsulated on physicochemical properties of microcapsules. 80, 808-816. 

Figure 2, ABTS radical cation scavenging as a function ofpH by either procyanidin or by procyanidin-gelatin complexes. Procyanidin (0.8 nmol) with or without 0.09 nmol gelatin was mixed with 55 nmol of the colored radical cation and the loss of color was immediately determined. Bars show the average of 3 determinations standard deviations are indicated.

Continental Waters. Some data have recently been obtained for Central Kazakstan (Table 25) on waters in cracks and sediments of Devonian volcanics and sediments and water from the Sea of Azov and Lake Balkash (Andreyev et al, 1967). In this difficult analitical problem, the lead was collected either (1) on activated charcoal saturated with chloroform saturated with dithizone or (2) as a coprecipitate with a tannin-gelatin complex. The transient water was found to be highly variable in lead isotope ratios, both radiogenic and non-radiogenic and the lake waters had about the same ratios as oceanic manganese nodules or were less radiogenic. 

Molecular Sizes of BSA-Gelatin Complexes and Stability BSA Structure in Complex.361... 

LIMITED THERMO AGGREGATION AS A EACTOR DETERMINING MOLECULAR SIZES OE BSA-GELATIN COMPLEXES AND STABILITY BSA STRUCTURE IN COMPLEX... 

Tsung, M., Burgess, D.J. Preparation and stabilization of heparin/gelatin complex coacer-vate microcapsules. J. Pharm. Sci. 86(5), 603-607 (1997)... 

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