Heparin was modified with adipic diliydrazide and covalently linked to surface-activated silica. Contact angle measurements were made to determine changes in surface at various stages of the derivatization. Xray photoelectron spectroscopy was used to analyze the elemental composition of the surface at each step of immobilizing heparin as well and...
Heparin was modified and immobilized to surface-activated silica surfaces using two different reaction schemes. End-aminated heparin was reacted with 2-iminothiolane to produce free thiol groups at the terminal ends of the heparin chains. The end-thiolated heparin was immobilized by reaction with a pyridyl disulfide activated poly[ethylene oxide]-poly[propylene oxide]-poly[ethylene oxide] triblock...
Adipic dihydrazide-modified heparin was prepared and
subsequently immobilized on surface-activated silica wafers. X-ray
photoelectron spectroscopy (XPS) was used to quantify the elemental
composition of the silica surface at each stage of activation and results
showed that successful immobilization had taken place. Contact angle
measurements were made to verify the high...
Chloride is actively transported across the skin of
the intact
leopard frog, Rana pipiens.
The influx and efflux in 0.2 mM NaC1
are 0.67 and 0. 72 μeq/10 g-hr, respectively.
The renal efflux of
chloride is 0.02 μeq/10 g-h .
The transepithelial potential differences (TEP) range from -1 to +32...
Bacteria were isolated from water at Alder Slough, Oregon. Of
15 isolates grown successfully in the medium employed, 100% showed
measurable uptake of Zn-65. A growth curve was established for one
isolate, a gram-negative rod designated AS-1. Increasing Zn-65 uptake
was found generally to correspond with increasing growth of
AS-1....
The purpose of this thesis is to determine if dietary and
metabolic relationships exist between cobalt and selenium. Two
groups of lambs were compared. The dams of one group of lambs
received an alfalfa hay adequate in selenium and the dams of the
other group received an alfalfa hay deficient...
Copper in blood and liver can be divided into several fractions.
Copper in blood is about evenly divided between erythrocytes and
plasma. Normal concentrations for most species range between one and
two parts per million. Plasma copper is mainly a copper protein,
ceruloplasmin and a loosely bound form, reacting directly...
Pentobarbital binding to hemoglobin, evidence of an interaction
between pentobarbital and 2,3-DPG in binding to hemoglobin, and the
effect of altered oxygen dissociation on the outcome of barbiturate
poisoning were studied.
Ultrafiltration and equilibrium dialysis techniques were used to
determine the binding of pentobarbital to solutions of purified
hemoglobin, diluted...