(2) Fluorescent basis phantom solution preparation: The solutions for four fluorescent basis phantoms with a total volume of 2 mL were made using IL, India ink, and fluorescein solutions as described above.
Venous blood was collected into two 9mL K3EDTA Vacuette tubes (Greiner Bio-One, Frickenhausen, Germany) from subjects either prior to them being sedated for colonoscopy but after consumption of bowel preparation solution, or prior to preparation for surgery but following colonoscopic diagnosis.
Determination of immobilization conditions has revealed, that irrespectively of the enzyme origin (lytic, proteolytic or amylolytic) and its source (1% acetone precipitated preparation solution or culture filtrate), optimal for immobilization v/w ratio of the liquid phase and the polymer matrix (Biocarb L) remains the same and is equal to 10 1 (approximate).
Based upon these results, we are now developing a standardized method for optimal preparation of CAP solutions for use in tussigenic challenges.
We recommend the use of a 10% ethanol/water solvent system without Tween in the preparation of capsaicin solutions for tussigenic challenges.
Preparation of inhaled capsaicin solutions for cough induction varies greatly from one lab to another, which creates inconsistencies between tussigenic challenge results.
Similarly studies on the staining procedures for LMD sections, have suggested the use of RNase free aqueous staining solutions for preparation of the toluidine dye and washes to protect RNA integrity [ 26].
The methods for the preparation of solutions and for all enzyme assays in 30 mM TEA buffer (pH 7.5) at I = 0.1 (NaCl) and 25 °C were described in a recent publication.
The tissues were frozen in liquid nitrogen and stored at -80°C until preparation for solution hybridisation analyses.
Stock solutions for the preparation of the bioreactor medium were prepared as described in Willenbacher et al. (2014), except for the concentration of the glucose stock solution which was about 48 g/L in 250 mL and the usage of 0.05 M (NH4 2SO4 and 0.008 mM Na3citrate.
Using alkaline solutions for ultrasonic preparation could exclude hydrophobic organic solvents and consequently contamination by organic residuals and undesired functionalization of the nanosheets.
