Typical CD spectrum of the right-handed poly[d(A-T)2] was reversed when trans-bis(N-methylpyrimidium-4-yl)diphenyl porphyrin (trans-BMPyP) was bound, suggesting that the helicity of the polynucleotide was reversed to the left-handed form. The formation of the left-handed Z-form poly[d(A-T)2] was confirmed by (31)P NMR, in which a single (31)P peak of B-form poly[d(A-T)2] was split into two peak...

The solution behaviour in water of a polyoxazoline-type block copolymer, namely poly(2-isopropyl-2-oxazoline)-block-poly(2-methyl-2-oxazoline), denoted as P(iPrOx-b-MeOx), above the lower critical solution temperature (LCST) of the PiPrOx block was exploited to induce a temporary or permanent self-assembly. Spherical micelles were first obtained and could be disassembled in a reversible manner ...

Poly(dG-dC) . poly(dG-dC) was modified by reaction with N-acetoxy-N-acetyl-2-aminofluorene (N-AcO-AAF). Two samples with 6.6% and 8.5% modified bases were prepared. The modified bases are randomly distributed along the polymer chain, as deduced from competition experiments between antibodies against N-2-(guanosin-8-yl)-acetylaminofluorene, modified poly(dG-dC) . poly(dG-dC), and modified DNAs. ...

We examined the synthesis, physical properties, and resist properties of various iodine-containing molecules polymers as materials. By condensation reaction 2,6-dimethylphenol (DMP) with 4-iodebenzaldehyde (IBA), 3,5-diiodesalicylaldehyde (DISA) 4-hydroxy-3,5-diiodebenzaldehyde (HDIA), corresponding iodine containing compounds DIPM, 2-DIPM, 4-DIPM were synthesized. The these adamantyl bromo ace...

Poly (2-azaadenylic acid) [(aza2A)n] and poly(2-azainosinic acid [(aza2I)n], two newly synthesized analogues of (A)n and (I)n, in which CH-2 of the purine ring is replaced by a nitrogen atom, have been evaluated in various biological assay systems. (Aza2A) n formed a complex with (U)n and (br5U)n, and (aza2I)n formed a complex with (C)n and (br5C)n, but these complexes were markedly destabilize...

in this paper, the morphology, roughness and nano structural properties of sio2/poly vinyl pyrrolidone  synthesized with sol gel method,  characterized by using scanning electron microscopy, atomic force microscopy and gps132a techniques.the main material taken from oxide silicon with weight percentage of 20, 40, 60, 80 and from poly vinyl pyrrolidone with percentages of 80, 60, 40, 20 is synth...