Another observation from Fig. 3 is that the decrease of diffraction peaks intensity of substrate with increasing number of focus shots reveals a growth in the coating deposited on the substrate surface.
Chen et al. [ 76] found that when transcriptional regulatory sequences, transcription factors, and target genes were the same, expression level of luciferase and luminous intensity of substrates could truly reflect the expression of the target genes.
But when the intensities of the substrate MBP was compared almost no signal was obtained from the phosphatase-treated samples.
Samples were separated with a 15% polyacrylamide gel containing 7 MM urea and exposed to a Molecular Dynamics Phosphoimager to measure the intensities of the substrate and product bands, and to film overnight for visualisation.
Due to the fact that SERS hot spots are confined to a small area but dominate the overall SERS intensity of the substrate, the distribution of SERS intensity in a SERS substrate was found to be inhomogeneous, thus limiting their application as reproducible and ultrasensitive sensing platforms.
The studies of Almaas et al., [37], [38] have shown that the internal metabolic activities are adjusted to environmental changes through two distinct mechanisms: Flux plasticity, involving changes in the active catalytic reactions when the organism is shifted from one growth condition to another; these reactive reorganizations result in changes in the intensity of the substrate fluxes.
The intensity of GusB substrate fluorescence was stronger in OA fibroblasts as compared with those isolated from patients with RA.
The fluorescence intensity of the substrate was read in kinetics mode for 30 min at excitation and emission wavelengths of 365 and 445 nm, respectively.
The percentage of HDR was calculated using the following equation (b + c / a + b + c) × 100, where 'a' is the band intensity of DNA substrate and 'b' and 'c' are the cleavage products.
The TE frequency was measured using a T7 endonuclease I assay and calculated using the following equation (1 − (1 − (b + c / a + b + c))1/2 ) × 100, where 'a' is the band intensity of DNA substrate and 'b' and 'c' are the cleavage products (Ran et al., 2013).
