The phrase "activity was studied using" is correct and usable in written English.
It can be used in academic or research contexts to describe the methodology employed in examining a particular activity.
Example: "The activity was studied using a combination of surveys and observational techniques to gather comprehensive data."
Alternatives: "activity was analyzed with" or "activity was investigated through".
Anti-tumor activity was studied using the MTT assay; the BJO/NLCs showed improved cytotoxicity to A549 cells.
The influence of the temperature and pressure on the extraction efficiency and on the extract antioxidant activity was studied using a factorial experimental design.
Its surface characteristics were systematically analyzed using XRD and TEM and anodic electrocatalytic activity was studied using a linear sweep voltammetry technique in 0.5 M H2SO4 + 1 M HCOOH.
Materials and methods Rat ventilation was investigated using plethysmography and arterial blood gas analysis while brain electrical activity was studied using EEG with one implanted frontal electrode.
The influence of Fe-doping on intrinsic TiO2 photocatalytic activity was studied using photocatalytic degradation of mecoprop, under UV light irradiation.
Subsequently, Nav channel activity was studied using veratridine.
The long-term variations in solar activity are studied using the dataset comprised of sunspot number and 14C radioisotope timeseries.
Several cases that showed large electric and magnetic field fluctuations during geomagnetic disturbances were selected and the effects of geomagnetic activity were studied using the time derivatives of horizontal component of the magnetic field and the deviations in the magnetic and electric field components from the quiet background.
The effects of enzyme inhibitors on protease activity were studied using PMSF and EDTA.
In addition, the effects of chemicals on the enzyme activity were studied using 2 M H2O2 as oxidizing agent as well as 5% Triton X-100, 5%Tween-80Tween-800% SDS as ionic and nonionic surfactant agents on the protease activity determined [ 8, 14].
Soy protein isolate (SPI), bovine whey protein (BWP) and egg white protein (EWP) were hydrolyzed with the Flavourzyme 500L® protease, and the interactions of these substrates and their mixtures on their functional properties and antioxidant activities were studied using a simplex centroid mixture design.
