A series of furoxan-based novel nitric oxide-donating ursolic acid (UA) derivatives (7a-f) were synthesized, and their cytotoxic activities against HepG2 cells
The comparison of solid phase extraction(SPE) for the preconcentration and isolation of polyphenols in tobacco samples was carried out by ultra-high performance
Single-chain fragment variable(ScFv) antibodies with the substrate binding sites were obtained by repetitive selections from a semi-synthetic phage display anti