Surface Characterization of Colloidal Drug Carriers for Drug Targeting by Aqueous Two-Phase Partitioning

1989 ◽  
pp. 149-155
Author(s):  
Rainer H. Müller ◽  
Stanley S. Davis ◽  
Eric Mak
Keyword(s):  
Drug Targeting ◽  
Surface Characterization ◽  
Drug Carriers ◽  
Two Phase ◽  
Phase Partitioning ◽  
Colloidal Drug Carriers

Two-phase partitioning and partial characterization of a collagenase from Penicillium aurantiogriseum URM4622: Application to collagen hydrolysis

2013 ◽  
Vol 75 ◽  
pp. 64-71 ◽  
Author(s):  
Carolina A. Lima ◽  
Augusto C.V. Freitas Júnior ◽  
José L. Lima Filho ◽  
Attilio Converti ◽  
Daniela A. Viana Marques ◽  
...  
Keyword(s):  
Partial Characterization ◽  
Two Phase ◽  
Phase Partitioning ◽  
Penicillium Aurantiogriseum

Preparation and Analysis of Ti and Alloyed Ti Surfaces Used in the Evaluation of Biological Response

1987 ◽  
Vol 110 ◽  
Author(s):  
J. Lausmaa ◽  
M. Ask ◽  
U. Rolander ◽  
B. Kasemo
Keyword(s):  
Surface Characterization ◽  
Biological Response ◽  
Anodic Oxide ◽  
Surface Oxide ◽  
Grain Structure ◽  
Two Phase ◽  
Bulk Metal ◽  
Ti Alloys ◽  
Surface Oxides

AbstractThe biocompatibility of Ti and Ti alloys is closely associated with the passivating surface oxide which covers these materials. In this paper results are presented from a broad surface characterization of pure Ti and Ti6A14V alloy surface oxides prepared by thermal oxidation by machining, or by electrochemical procedures (electropolishing and anodic oxidation). The chemical composition of the surface oxide on both materials is mainly TiO2, as shown by XPS, AES, and SIMS analyses. Significant differences exist for both the thermal and anodic oxides, in that the alloying elements are present in the surface oxide of the alloy. TEM and STEM studies show that the microstructure of the anodic oxide films is rather heterogeneous with areas of different porosity which can be correlated with the grain structure of the bulk metals. Oxides on the alloy are even more heterogeneous than on Ti, due to the more complex (two-phase) microstructure of the bulk metal, and also differ in crystallinity. The differences in the surface oxide properties can be expected to lead to differences in the biological response to these two materials. With the alloy, one must consider the risk of Al and/or V dissolution into the biological system.

Aqueous two-phase partitioning and characterization of xylanase produced by Streptomyces geysiriensis from low cost lignocellulosic substrates

2020 ◽  
Vol 130 (6) ◽  
pp. 571-576
Author(s):  
Shanmugam Poornima ◽  
Palanisamy Divya ◽  
Natchimuthu Karmegam ◽  
Vivekanandhan Karthik ◽  
Ramasamy Subbaiya
Keyword(s):  
Low Cost ◽  
Two Phase ◽  
Phase Partitioning ◽  
Lignocellulosic Substrates

Characterization of pH dependence in organic acid absorption with non-reactive and reactive polymers for application in two-phase partitioning bioreactors

2016 ◽  
Vol 287 ◽  
pp. 503-510 ◽  
Author(s):  
Eric C. Peterson ◽  
David Contreras-López ◽  
Jesse Harris ◽  
J. Scott Parent ◽  
Andrew J. Daugulis
Keyword(s):  
Organic Acid ◽  
Ph Dependence ◽  
Two Phase ◽  
Phase Partitioning ◽  
Acid Absorption ◽  
Reactive Polymers
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