Thermodynamics of cholesterol compounds in supercritical carbon dioxide experimental and modeling studies

... THERMODYNAMICS OF CHOLESTEROL COMPOUNDS IN SUPERCRITICAL CARBON DIOXIDE: EXPERIMENTAL AND MODELING STUDIES HUANG ZHEN (M ENG., TIANJIN UNIVERISTY) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR ... Largescale supercritical CO2 extraction has been in commercial operation since the late 1970s for decaffeination of coffee and tea, refining of cooking oils, recover...

Ngày tải lên: 17/09/2015, 17:19

... silk fibroin fiber scaffolds containing bone morphogenetic protein (BMP-2) and/ or nanoparticles of hydroxyapatite (nHAp) using electrospinning, and showed its ability in inducing in vitro bone formation ... the applications of electrospinning and supercritical CO2 foaming techniques With the aid of physical and chemical modifications on mechanical properties...

Ngày tải lên: 14/09/2015, 08:41

... 1660-1680 Turn 26 2 38±18 30 2 29±1 26 2 1681-16 92 β- Antiparallel 26 ±3 24 ±4 25 2 24±1 26 2 α-helix percentage is the most important criterion in judging the denaturation of protein In Figure 3.9, ... conformations BMP -2 from from from F1 components native F2 F3 F4 (cm-1) 1647-1660 α-Helix 12 1 9 2 11 2 11 2 12 1 1615-1636 β- sheet 26 ±4 19±7 24 ±6 26 2 25 2 163...

Ngày tải lên: 14/09/2015, 08:41

... 4 .3 Comparison of performance scores for all samples at specific intervals* Control F1 F2 F3 F4 Week 0.00 0.00 0 .33 0.67 1 .33 Week 1.67 2.00 1.00 2.00 2.00 Week 2.67 3. 33 2.67 3. 33 3 .33 Week 3. 67 ... with increasing HAp content From 408ppm in scaffold F1, the DCM content dropped to 34 035 0ppm in scaffolds F2 and F4, and dropped even further to almost 33 2ppm in sca...

Ngày tải lên: 14/09/2015, 08:41

... DNA release from different scaffolds in PBS at 37 ºC Irrespective of the release modes, the release rate of plasmid DNA increases with increasing loading of HAp nanoparticles, but the whole release ... their release properties and morphology We further explored the in vitro study of plasmid DNA by investigating the effects of HAp content and the different methods...

Ngày tải lên: 14/09/2015, 08:41

... three kinds of scaffolds was well maintained, which helped improve the formation of new bone and the healing of segmental defects in vivo Groups A, B and C released DNA or DNA nanoparticles in different ... solution (0.02% in mM sodium acetate buffer, pH 5. 0) and DNA solution of 100µg/mL in 5- 50 mM of sodium sulfate solution were preheated to 50 -55 °C separatel...

Ngày tải lên: 14/09/2015, 08:41

... fabricated by the combination of spray drying and supercritical CO2 foaming techniques and the effects of chitosan incorporation on the following factors was investigated: in vitro release of DNA, cell ... cases of scaffolds F1 and F2 To evaluate the effects of the fabrication process (including spray drying, supercritical CO2 foaming, and handling of samples)...

Ngày tải lên: 14/09/2015, 08:41

... promising results in controlled release of DNA, but the release rate of DNA and subsequent expression of target protein is too low, especially in the initial stage (Figures 7. 5a and 7. 7b) Therefore, ... by a period of slow release profile Compared with the release profile of F0, the release profiles of F1 and F2 are relatively linear and sustainable The...

Ngày tải lên: 14/09/2015, 08:41

... potential applications of electrospinning and supercritical CO2 foaming techniques in the fabrication of three dimensional scaffolds for controlled release and bone regeneration These two techniques ... sustained release of DNA, possibly due to a balance of electrostatic interaction and hydrophilic interaction between DNA and the surface of Lysine pep...

Ngày tải lên: 14/09/2015, 08:41

... Demonstration of the disassembly of a defunct LCD Carbon dioxide extraction was carried out using a Thar Technologies SFE-500F-2-FMC System and liquid withdrawal carbon dioxide (99.9 %) The extraction ... for extraction of liquid crystals from defunct display devices with high efficiency MATERIALS AND METHODS A LCD (Figure 2A) device may be disassembled b...

Ngày tải lên: 28/04/2014, 10:50

... ) % extraction of curcumin using acetone Fig Curcumin extraction by supercritical CO2 ( ) % Extraction of curcumin from curcuma powder using supercritical CO2 3.3 Ultra- sonic assisted extraction ... extraction (UAE) 3.4 Supercritical carbon dioxide extraction (SC CO2 E) 3.3.1 Effect of ultra- sonic irradiation Fig shows the effect of ultra- s...

Ngày tải lên: 01/07/2014, 13:23

... suggest that vasopressin could be more potent than epinephrine in increasing the cardiac output Table End-tidal pressure of carbon dioxide and mean arterial blood pressure in two groups of cardiac ... KB, Sanders AB, Otto CW, Ewy GA: Effects of graded doses of epinephrine on both noninvasive and invasive measures of myocardial perfusion and blood...

Ngày tải lên: 13/08/2014, 03:20

... Properties of Lemongrass Oil 32 Table 5: Physicochemical Properties of main components of essential oil 34 Table 6: Investigation of SC CO2 extraction of essential oil from lemongrass ... result of Lemongrass essential oil from steam distillation, stem 106 Figure 38: GC result of Lemongrass essential oil from steam distillation, leaf 106 Figure...

Ngày tải lên: 13/11/2014, 06:25

... METHOD 525.2 DETERMINATION OF ORGANIC COMPOUNDS IN DRINKING WATER BY LIQUID-SOLID EXTRACTION AND CAPILLARY COLUMN GAS CHROMATOGRAPHY/MASS SPECTROMETRY 1.0 SCOPE AND APPLICATION 1.1 This ... procedures for determination of organic compounds in finished drinking water, source water, or drinking water in any treatment stage The method is appl...

Ngày tải lên: 22/03/2014, 14:20

... between leaf carbon isotope discrimination (∆) and intrinsic water-use efficiency (WUE = A/gs ) for potted seedlings of 22 tropical rainforest species grown in non-limiting environmental conditions in ... 57] Leaf carbon traits of tropical rainforest seedlings studied here were in agreement with general trade-offs since carbon assimilation increases with i...

Ngày tải lên: 07/08/2014, 16:20