The phrase "and a selectivity of" is correct and usable in written English.
It can be used when discussing the degree of preference or discrimination in a particular context, such as in research or decision-making processes.
Example: "The study revealed a selectivity of responses based on the participants' backgrounds."
Alternatives: "and a degree of selectivity" or "and a level of selectivity".
Whereas the crude fraction showed ∼100-fold selectivity, austocystin D, which was found to be the small molecule responsible for selective toxicity, displayed a ∼900-fold increased toxicity against MIP101 cells, and a selectivity of ∼20-fold was observed in drug-selected cells.
The etching behavior of the SrRuO3 film is investigated, and a selectivity of 1 9,100 with respect to the SrTiO3 substrate is found.
It was obtained a conversion of 94%, an epoxidation percentage of 84 and a selectivity of 89% toward the epoxides for the castor oil epoxidation.
The most selective compound, novel compound 6, has an IC50 of 0.83 ± 0.07 μM and a selectivity of more than 120-fold for AKR1B10/AKR1B1.
A conversion of 80% and a selectivity of 95% are achieved, and negligible loss of activity is detected even after reaction of 5 runs.
A comprehensive structure-activity relationship (SAR) study revealed two 5-substituted orotate analogues (5u and 5v) that exhibit Kiapp values of several ten nanomolar level and a selectivity of more than 30,000-fold over human DHODH.
Among them, compound 4g has a Ki value of 9.7 nM for the D3 receptor and displays a selectivity of >5000 and 466 times over the D1-like and D2-like receptors, respectively.
For example, compound 5 SM-12955) binds to both cIAP1 and cIAP2 proteins with Ki values of <10 nM and displays a selectivity of >900-fold for cIAP1 over XIAP.
By performing Raman-Nath [47 49] scattering on the BEC for various lattice wavelengths, we have identified the optimal wavelength around 780 nm and find a selectivity of (5000 1) for Cs.
However, 6 has a much weaker binding affinity to XIAP and displays a selectivity of 613 times for cIAP1 over XIAP.
Compound 11 with a p-phenyl substituent on the phenyl ring has a decreased binding affinity to these three IAP proteins as compared to compound 2 and has a selectivity of 92 times for cIAP1 over XIAP.
