نتایج جستجو برای: phosphonic acid
تعداد نتایج: 747569 فیلتر نتایج به سال:
Although natural products have been a particularly rich source of human medicines, activity-based screening results in a very high rate of rediscovery of known molecules. Based on the large number of natural product biosynthetic genes in microbial genomes, many have proposed "genome mining" as an alternative approach for discovery efforts; however, this idea has yet to be performed experimental...
In order to remove metal ions from wastewaters, thermosensitive copolymers bearing sorption properties toward metal cations were prepared by free radical copolymerization between the N-n-propylacrylamide (NnPAAm) and the (dimethoxyphosphoryl)methyl 2-methylacrylate (MAPC1), followed by a hydrolysis of the phosphonated esters into phosphonic diacid groups ((h)MAPC1). The thermosensitivity and th...
A reaction scheme has been devised according to 3 RX + 3 Ti(III) + 0.25 P4→ PR3 + 3 XTi(IV) wherein RX = PhBr, CyBr, Me3SiI, or Ph3SnCl with contrasting results in the case of more hindered RX; the scheme accomplishes direct radical functionalization of white phosphorus without intermediacy of PCl3. It is known that P4, white phosphorus, has excellent properties as a trap for carboncentered rad...
Ribonuclease A (RNase A) can make multiple contacts with an RNA substrate. In particular, the enzymatic active site and adjacent subsites bind sequential phosphoryl groups in the RNA backbone through Coulombic interactions. Here, oligomers of vinylsulfonic acid (OVS) are shown to be potent inhibitors of RNase A that exploit these interactions. Inhibition is competitive with substrate and has Ki...
A commonly applied strategy in the field of tissue engineering (TE) is the use of temporary three-dimensional scaffolds for supporting and guiding tissue formation in various in vitro strategies and in vivo regeneration approaches. The interactions of these scaffolds with highly sensitive bioentities such as living cells and tissues primarily occur through the material surface. Hence, surface c...
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