The phrase "a hallmark on" is not correct in standard written English.
It is typically used to indicate a distinguishing feature or characteristic of something, but the preposition "on" is not appropriate in this context.
Example: "The innovative design is a hallmark of the company's commitment to quality."
Alternatives: "a hallmark of" or "a hallmark in".
To investigate the expression of CCR5 and CCR4, two chemokine receptors, as markers of the T helper (Th) 1 and Th2 pathways, respectively, and class II antigen HLA-DR as a hallmark of inflammation on conjunctival cells obtained from patients receiving long-term glaucoma treatment.
Bar codes are a hallmark of modernity, found on groceries, parcels, machine components, tickets, and billions of other items.
I recently visited the Parisian shops of five members of the group, and found the timeless craftsmanship that is a hallmark of French life on full display.
But this engagement with the modern world is a hallmark of the International Congress on Medieval Studies, a yearly conference held at Western Michigan University in Kalamazoo, which attracted Ms. Arden and about 3,000 other scholars earlier this month.
His most recent book, Convergence Culture: Where Old and New Media Collide, is recognized as a hallmark of recent research on the subject of transmedia storytelling.
Spared myelination is a hallmark of protective effects on injured neural networks.
Cell Death Detection ELISA assay measures the cytosolic histone fragments, which are a hallmark of apoptosis, based on optical density.
The inhibition by clofilium was irreversible, which is a hallmark of its action on IKSper in mouse sperm (Navarro et al., 2007; Zeng et al., 2011).
Careful attention to confidentiality and privacy policies, and the security of research data, should be a hallmark of all research on human biological materials to prevent misuse of research information.
