While drug release was not a simple function of glutaraldehyde concentration, the effective diffusivity was found to be inversely proportional to glutaraldehyde concentration in the form of a power function when the initial drug distribution was taken into consideration.
These PCN materials at low clay concentration in the form of coating on cold-rolled steel (CRS) were found to be much superior in corrosion protection over those of pure epoxy resin when tested for performance in a series of electrochemical measurements of corrosion potential, polarization resistance, corrosion current, and impedance spectroscopy in 5 wt.% aqueous NaCl electrolyte.
While the deterministic rate equation approach or Langevin dynamics explicitly gives the time-evolution of molecular concentration in the form of ordinary differential equations, chemical master equation (CME) describes the evolution of a molecular number state as a continuous-time jump Markov process.
Polymeric delivery systems may, instead, mimic certain sequestration and binding characteristics of the extracellular matrix and lead to the provision of therapeutic molecules at therapeutically efficient local concentrations [V], in the form of spatial gradients (d[V]/dx) and temporal gradients (d[V]/dt), and in combination with other morphogenetic cues.
Propagation of concentration disturbances in the form of (bio chemical waves satisfying Fermat's principle of minimum time is analysed by methods of the classical variational calculus, Finsler geometry and optimal control theory.
Especially the dynamics of the near-bed region of such high-concentration currents in the form of dense suspensions is still poorly understood, as it is governed by intense particle-fluid and particle-particle interactions that give rise to strongly non-Newtonian dynamics and to mass and momentum exchanges between the current and the sediment bed.
After 10 days, potted plants were treated with different concentrations of SLE in the form of foliar spray.
In the experiments, concentrations of tritium in the form of tritium gas (HT + T2) and tritiated water (HTO + T2O) in the outlet streams of a reactor tube were measured separately with an ionization chamber and a liquid scintillation radiometer.
Since growth and photosynthesis of Chlorella tolerate much higher concentrations of microelements in the form of nanocarboxylates than those in ionic forms, nanocarboxylates can be further applied in algal biotechnology.
