The phrase "assay on human" is not correct in standard written English.
It may be intended to refer to conducting an assay related to humans, but the phrasing is awkward and unclear.
Example: "The researchers conducted an assay on human samples to determine the effects of the drug."
Alternatives: "assay of human" or "assay involving humans".
All compounds have been tested for toxicity by MTT assay on human macrophage.
In vitro dark cytotoxicity and photodynamic efficacy of BCPDs were evaluated by MTT assay on human hepatoma BEL-7402 cells.
The genotoxic potential of formocresol was assessed by comet assay on human peripheral blood lymphocytes and in vivo micronucleus in mice.
In vitro biocompatibility of the electrospun scaffold was evaluated in terms of LDH and DNA quantification assay on human foreskin fibroblast, human keratinocyte and hMSC.
After TEM, DLS, TGA/DSC, ATR, XRD and UV Vis characterization, the relevant cytotoxicity studies were conducted with the MTT assay on human embryonic kidney cells (HEK293T) followed by antioxidant activity with ABTS.
To compare cytotoxicity level of ethanolic extract of A. sieberi with artemisinin, different concentrations (1 100 μg/ml) were tested using MTT assay on human umbilical vein endothelial cells.
Cytotoxicity of the extracts was determined by dimethylthiazol-2-yl)- 2,5diphenyl tetrazolium bromide (MTT) assay on 2 human cancer (colon and breast) and normal (endothelial and colon fibroblast) cells.
To evaluate the modified peptides as therapeutic agents, hemolytic assays on human blood samples were performed.
The cytotoxicity of the scaffolds was determined by MTT assays on human fibroblast gum (HuGu) cells.
The infectivity was assayed on human cells, engineered to express the HIV receptor CD4 and the co-receptor CCR5, as well as on peripheral blood lymphocytes and macrophages.
The affinity towards ETAR was confirmed in vitro by cell binding assays on human fibrosarcoma cells HT-10800) and in vivo by murine xenograft imaging studies.
