Physical and chemical stability of β-carotene-enriched nanoemulsions: Influence of pH, ionic strength, temperature, and emulsifier type

2012 ◽  
Vol 132 (3) ◽  
pp. 1221-1229 ◽  
Author(s):  
Cheng Qian ◽  
Eric Andrew Decker ◽  
Hang Xiao ◽  
David Julian McClements
Keyword(s):  
Ionic Strength ◽  
Chemical Stability ◽  
Physical And Chemical ◽  
Influence Of Ph ◽  
Β Carotene

Studies on Characteristics and Adsorption of BSA on Hydrogel Biomaterials

2007 ◽  
Vol 330-332 ◽  
pp. 901-904
Author(s):  
G.X. Tan ◽  
Ying De Cui ◽  
Ying Jun Wang
Keyword(s):  
Ionic Strength ◽  
Bovine Serum Albumin ◽  
Chemical Stability ◽  
Contact Lens ◽  
Bovine Serum ◽  
Protein Concentration ◽  
Radical Copolymerization ◽  
Vinyl Pyrrolidone ◽  
Equilibrium Water Content ◽  
Influence Of Ph

Hydrogel biomaterials were synthesized by radical copolymerization of N-vinyl pyrrolidone (NVP) and 2-hydroxyethylmathacrylate (HEMA), with azobisisobutyronitrile (AIBN) as an initiator, reacting at 60~70°C for 24 hours, which were designed as contact lens due to the good chemical stability and high biocompatibility. The absorbency of bovine serum albumin (BSA) was measured by the ultraviolet spectrophotometer. The influence of pH, initial protein concentration and ionic strength were investigated in detail. The results showed that the absorption of protein on hydrogel biomaterials increased with the immersing time increasing, and was stable during 4 days. The absorption of protein on hydrogel increased with the equilibrium water content increasing. The protein absorption on hydrogels reduced the permeability of the oxygen of the biomaterials.

Effect of Ionic Strength and pH on the Physical and Chemical Stability of a Monoclonal Antibody Antigen-Binding Fragment

2013 ◽  
Vol 102 (8) ◽  
pp. 2520-2537 ◽  
Author(s):  
Tingting Wang ◽  
Ozan S. Kumru ◽  
Li Yi ◽  
Y. John Wang ◽  
Jennifer Zhang ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Ionic Strength ◽  
Chemical Stability ◽  
Antigen Binding ◽  
Physical And Chemical

scholarly journals Physical and chemical stability of β-carotene nanoemulsions during storage and thermal process

2019 ◽  
Vol 121 ◽  
pp. 229-237 ◽  
Author(s):  
Carina M. Borba ◽  
Millene N. Tavares ◽  
Luana P. Macedo ◽  
Gabriela S. Araújo ◽  
Eliana B. Furlong ◽  
...  
Keyword(s):  
Chemical Stability ◽  
Thermal Process ◽  
Physical And Chemical ◽  
Β Carotene

Lutein-enriched emulsion-based delivery systems: Influence of pH and temperature on physical and chemical stability

2016 ◽  
Vol 196 ◽  
pp. 821-827 ◽  
Author(s):  
Gabriel Davidov-Pardo ◽  
Cansu Ekin Gumus ◽  
David Julian McClements
Keyword(s):  
Chemical Stability ◽  
Delivery Systems ◽  
Physical And Chemical ◽  
Influence Of Ph

Influence of pH and ionic strength on the thermal gelation behaviour of pea protein

2021 ◽  
pp. 106903
Author(s):  
Caren Tanger ◽  
Michaela Müller ◽  
David Andlinger ◽  
Ulrich Kulozik
Keyword(s):  
Ionic Strength ◽  
Pea Protein ◽  
Thermal Gelation ◽  
Influence Of Ph

Diffusion and Migration of Ions in Sedimentary Rock Matrix: Effects of Ionic Strength and Tracer Concentration on Diffusion of Cs+ ions in Sandstone

2003 ◽  
Vol 807 ◽  
Author(s):  
Haruo Sato
Keyword(s):  
Ionic Strength ◽  
Matrix Effects ◽  
Chemical Properties ◽  
Effective Diffusivity ◽  
Concentration Profiles ◽  
Tracer Concentration ◽  
And Migration ◽  
Physical And Chemical ◽  
Cs Ions ◽  
And Chemical Properties

ABSTRACTIn-diffusion experiments for Cs+ and I− in sandstone were performed as a function of ionic strength ([NaCl]=0.01, 0.51M) and tracer concentration ([CsI]=7.5E-5, 1.5E-2M) together with the measurements of the physical and chemical properties of sandstone, and apparent diffusivities (Da) for Cs+ were obtained. The obtained Da-values for Cs+ scarcely depended on [NaCl], but increased with increasing [Cs+]. This trend is consistent with that of rock capacity factors (α), indicating that distribution coefficient (Kd) onto sandstone and effective diffusivity scarcely depend on [NaCl]. The concentration profiles of I− were all in already breakthrough. Although this indicates that I− diffusion is faster than that of Cs+, the concentration profiles of I− may have been lower than those for blank samples, judging synthetically from the correlations between α-values and the concentration profiles of Cs+ and from the concentration profiles of I− in the blank samples. Finally, the effects of [Cs+] and[NaCl] on Kd/-values for Cs+ were discussed from the viewpoint of adsorption by ion exchange and electrostatic attraction. The kd-values were considered to be combined sorption by both reactions.

Fabrication of 239/238Pu-Zirconolite Ceramic Pellets by Natural Sintering

2003 ◽  
Vol 807 ◽  
Author(s):  
T. Advocat ◽  
F. Jorion ◽  
T. Marcillat ◽  
G. Leturcq ◽  
X. Deschanels ◽  
...  
Keyword(s):  
Grain Size ◽  
Radioactive Waste ◽  
Nuclear Waste ◽  
Chemical Stability ◽  
Minor Actinides ◽  
Loading Capacity ◽  
X Ray Diffraction ◽  
X Ray ◽  
Physical And Chemical ◽  
Inorganic Matrix

ABSTRACTZirconolite is a potential inorganic matrix that is currently investigated in France, in the framework of the 1991 radioactive waste management law, with a view to provide durable containment of the trivalent and tetravalent minor actinides like neptunium, curium, americium and small quantities of unrecyclable plutonium separated from other nuclear waste. To confirm the actinide loading capacity of the zirconolite calcium site and to study the physical and chemical stability of this type of ceramic when subjected to alpha self-irradiation, zirconolite ceramic pellets were fabricated with 10 wt% plutonium oxide (isotope 239 or 238). The 55 pellets are dense (> 93.3% of the theoretical density on average) and free of cracks. They are characterized by a grain size of between 10 and 20 micrometers. X-ray diffraction analyses confirmed the presence of the zirconolite 2M crystalline structure.

scholarly journals Light-induced crosslinkable semiconducting polymer dots

2015 ◽  
Vol 6 (3) ◽  
pp. 2102-2109 ◽  
Author(s):  
Yue Zhang ◽  
Fangmao Ye ◽  
Wei Sun ◽  
Jiangbo Yu ◽  
I-Che Wu ◽  
...  
Keyword(s):  
Small Molecules ◽  
Chemical Stability ◽  
Semiconducting Polymer ◽  
Polymer Dots ◽  
Semiconducting Polymer Dots ◽  
Physical And Chemical

This paper describes photocrosslinkable Pdots with enhanced colloidal, physical, and chemical stability, and excellent encapsulating ability of functional small molecules.

Sign in / Sign up

Export Citation Format

Share Document