'Assay by using' is correct and can be used in written English.
It is often used in scientific or technical writing to describe a method of testing or analyzing something. Example: The purity of the substance was determined by assay, using a spectrophotometer to measure its absorbance.
After validation of the assay by using 5-HT3 andnists antagonistsists of reference, a pilot screen enabled us to identify azelastine, a well-known histamine H1 antagonist, as a potent 5-HT3 antagonist.
Takeda, M. et al. Development of In Vitro Drug-Induced Cardiotoxicity Assay by Using Three-Dimensional Cardiac Tissues Derived from Human Induced Pluripotent Stem Cells.
One standard curve was generated from each assay by using 10-fold dilutions in sterilized water (Gibco by Life Technologies) of a target plasmid (Eurofins Genomics, Germany).
After 24-hour incubation, culture media were collected for cytokine assay by using enzyme-linked immunosorbent assay.
A simple, rapid assay by using a single-tube PCR to detect the two deletions has been needed.
In this work, we designed a rapid and simple assay by using a magnetic platform and avoiding a long and complicated electrode-modifying procedure.
The aim of this study was to evaluate the cytotoxicity of orange oil, eucalyptol, and chloroform in a cell culture assay by using peritoneal macrophages from Swiss mice.
The compounds were tested for glucose uptake assay by using 3T3-L1 celinesnes, where all the candidates exhibited nearly similar potential for uptake of glucose into the lines as that of standard drug rosiglitazone.
Rapid diagnosis of Escherichia coli (E. coli), Salmonella and Vibrio cholera pathogens can be done with simultaneously in a single multiplex PCR assay by using specific primers with adjusted PCR conditions.
The objective of the study was to design a rapid, specific and accurate duplex real-time PCR assay by using SYBR Green fluorescence dye that is cheaper than double labelled probes to detect a group of mixed meats simultaneously.
We validated the assay by using 2522 subjects affected with hemoglobinopathies and applied it to carrier testing in a cohort of 10,111 couples who were also screened through traditional methods.
