The phrase "a more sensitive assay" is correct and usable in written English.
It can be used when discussing the improved ability of a test or measurement to detect or quantify a substance or condition.
Example: "In our latest study, we developed a more sensitive assay to detect trace levels of the biomarker in blood samples."
Alternatives: "a more precise test" or "an enhanced detection method".
Methylation for 16 patients was additionally assessed using a more sensitive assay, MCA.
The micro-neutralization is a more sensitive assay than HI as it measures antibodies to other neutralizing epitopes in addition to the haemagglutinin antigen.
The odorant assay may simply be a more sensitive assay that can reveal the weaker defects of such mutants as odr-1, odr-3, and odr-7 odr-1 that were not detectable in water soluble assays.
We next reduced the levels of QKI expression in Schwann/DRGN cultures using the same strategy except we used a more sensitive assay, quantitative RT-PCR, to monitor knockdown in rat Schwann cells [39].
These results suggest that if there is a difference between cases and controls for these markers it must be very small and we would need a more sensitive assay to detect the difference.
Also by replacing the conventional gel-purification protocol with one based on single-strand DNA separation, higher purity of ligated versus non-ligated DNA can be achieved, resulting in a more sensitive assay (data not shown).
The use of oligonucleotide-array CGH (aCGH) provides a much more sensitive assay for the detection of genomic variance than traditional CGH methods.
Another limitation of our study is that only 80% of the HC2-positive samples were positive by LiPA, a much more sensitive assay than HC2.
As the urea concentrations in the iontophoretic buffer were much smaller (of the micromolar order), this required a much more sensitive assay.
Thus an even more sensitive assay may have been able to detect differences that were not picked up by the current assay.
Thus, the SYBR Green I/PI assay provides a convenient and more sensitive assay for evaluating the antibiotic susceptibility of B. burgdorferi than other currently used viability assays, such as the LIVE/DEAD BacLight method, and it can be used for high-throughput screening of new drugs.
