However, PIT-induced immediate massive cell death, which rarely happens in cancer therapy, did not depict after with the fluorescence imaging for hours but depicted with the bioluminescence imaging because fluorescent substances are stable than ATP, which hydrized immediately in vivo.
However, this is unlikely since capsules filled with ATP or adenosine in crystalline form were stored dry at 4°C, at which storage conditions both substances are stable for 24 months according to the manufacturer's specifications (BUFA BV, Uitgeest, The Netherlands).
This correlation was not observed for triglycerides, where the level of bound substances was stable despite the time of incubation (2 hours, 43.3% and 24 hours, 41.6%).
Both the crystalline and the amorphous phases of this substance are stable at any temperature a device is likely to experience, and thin films of it are more or less transparent.
The substance is stable towards photolysis in aqueous solution and stable towards hydrolysis between pH 5 and 9 at 25°C [19].
Although dyes are a class of industrially important substances, they are stable and difficult to be degraded once they enter the natural ecosystem (Gupta and Suhas 2009; Uddin et al. 2009; Dogan et al. 2009; Suteu et al. 2009).
Finally, once formed, these substances are relatively stable to further atmospheric transformation processes that can alter their oxidation state.
The synthesized colloidal substances are quite stable even at very high concentrations under both in vitro and in vivo conditions [ 9, 10, 12– 15].
The compounds may be crystallized from ethanol, are stable as pure substances and are soluble in common organic solvents.
On the contrary, in our opinion, when the interest is focused on the DE of HS, it is normally much more efficient the formulation of liquid products (solid water-soluble products) with high concentration of HS (in aqueous alkaline solution, usually, the maximum amount of humic substances that is stable in solutions is around 20%%), which are applied by foliar or drip irrigation (fertigation). .
On the contrary, in our opinion, when the interest is focused on the DE of HS, it is normally much more efficient the formulation of liquid products (solid water-soluble products) with high concentration of HS (in aqueous alkaline solution, usually, the maximum amount of humic substances that is stable in solutions is around 20%%), which are applied by foliar or drip irrigation (fertigation).
