The degree of deacetylation determined by 1H-NMR using a 400 MHz AVANCE II spectrometer (Bruker, Billerica, MA, US) at a temperature of 300 K and elemental analysis of the CS was 89%. The sample was dissolved in D2O with two drops of trifluoroacetic and 3-(trimethylsilyl)propionic acid-d4 as reference salt. The elemental analysis was performed using a Flash EA 1112 system (Thermo Electron, Waltham, MA, US).
2 propanol
2-propanol is a colorless, flammable liquid chemical compound. It is a common organic solvent used in various industrial and laboratory applications. The primary function of 2-propanol is to serve as a general-purpose solvent for a wide range of organic compounds.
Lab products found in correlation
566 protocols using 2 propanol
Synthesis and Characterization of TiO2 Nanoparticles and Graphene Oxide
The degree of deacetylation determined by 1H-NMR using a 400 MHz AVANCE II spectrometer (Bruker, Billerica, MA, US) at a temperature of 300 K and elemental analysis of the CS was 89%. The sample was dissolved in D2O with two drops of trifluoroacetic and 3-(trimethylsilyl)propionic acid-d4 as reference salt. The elemental analysis was performed using a Flash EA 1112 system (Thermo Electron, Waltham, MA, US).
Quantifying Adipocyte Lipid Accumulation
Synthesis and Characterization of CMC/ACP Scaffold
CMC gel was first prepared by mixing 2.5 g CMC into 40ml water under stirring (1000 rpm) until the CMC powder was completely dissolved. Then, 0.498 g K2HPO4 was added into the CMC gel under stirring (500 rpm). Next, 0.555 g CaCl2 was added into 10 ml deionized water and this solution was added dropwise into the CMC gel under stirring for 5 min to form CMC/ACP gel. The final concentrations of calcium and phosphate ions were 100 mM and 60 mM, respectively. This gel was immediately frozen at -80°C for 2 h and then lyophilized in vacuum freeze dryer (Lgj-B10, Beijing, China) for 6 h to form CMC/ACP scaffolds.
Polycaprolactone-Based Antimicrobial Hydrogels
Fabrication of Perovskite Solar Cells
was cleaned in a sequence with a detergent and deionized water, acetone,
and IPA via sonication for 10 min for each at room temperature. A
thin TiO2 compact layer was deposited on a cleaned ITO
substrate by spin-coating using a solution composed of 0.15 M titanium
diisopropoxide bis(acetylacetonate) (75 wt % in 2-propanol, Sigma-Aldrich)
in 2-propanol (99.9% Sigma-Aldrich) at 4000 rpm for 30 s. The coated
ITO substrate was then dried at 120 °C for 5 min, followed by
calcination at 450 °C for 30 min. Furthermore, TiO2 paste (Titania Paste, Dyesol) diluted in ethanol (5 mg/mL) was spin-coated
on the compact TiO2-coated ITO substrate at 6000 rpm for
30 s to get a mesoporous TiO2 film at ambient temperature.
After coating, the bilayer samples were dried at 120 °C for 5
min and then sintered at 450 °C for 30 min. On the deposited
TiO2 layer, thin films of undoped and KMnO4-doped
MAPbI3 perovskite solutions in anhydrous DMF were deposited
by one-step solution spin-casting of the PbI2/MAI (1:1,
ratio) mixture in anhydrous DMF at 4000 rpm for 40 s in an ambient
atmosphere. Thus, the obtained films were annealed at 100 °C
for 10 min in ambient air to obtain dark-brown-colored perovskite
films.
Adipocyte Lipid Staining Protocol
Preparation and Characterization of Electrophoretic Ink Particles
Example 8
24.0 g Dodecylmethacrylate (Merck, 800589), 8.9 g (2-(Methylacryloyloxy)ethyltrimethyl ammoniummethylsulfat (Aldrich, 408123), 1.2 g 2-Mercaptoethanol (Merck, 805740), and 50.0 g 2-Propanol (Merck, 109634) are combined in a 250 ml three-neck flask equipped with reflux condenser and argon supply. The reaction mixture is heated to 90° C. and the setup is flushed with argon, 0.2 g Vazo 67 (DuPont) is added and the reaction is continued for 6 hours.
2.5 g of the resulting polymer, 20.0 g 2-Propanol (Merck, 109634), 25.7 g Dodecane (Aldrich, 386707), and 10.0 g TiPure R960 (DuPont) are combined in a 100 ml round bottom flask and homogenised. Remaining volatile components are removed using a rotator evaporator until no further condensation at 60° C. and 2 mbar is observed. Subsequently, the dispersion is stirred for 3 hours at 120° C. The resulting dispersion in Dodecane has a solid content of 38.6% and exhibits dispersed particles under an optical microscope.
Electrophoretic inks with 3% wt of the prepared particles and 3% wt additive are prepared and the Zetapotential characterised using a Malvern Zetasizer Nano ZS.
With Aerosol OT (Aldrich, 323586) a Zetapotential of +43 mV, and with Span 85 (Aldrich, S7135) a Zetapotential of +0 mV is found.
Adipogenic Differentiation of MSCs
Synthesis and Purification of Sulfonated Diphenyl Sulfone
Preparation of Alcoholic Solutions
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