We describe the synthesis and characterization of novel phosphorothioate-methylphosphonate backbone-modified oligodeoxynucleotide co-polymers. These may have potential use as antisense constructs.

The chemical modification of multiwalled carbon nanotubes (MWCNTs) with a long chain mercapto acid is reported as a way to improve sensitivity and response time of gas sensors for detecting alcohols, acetone and toxic gases such as DMMP. We have developed sensors employing MWCNTs decorated with gold nanoparticles and modified with a 16-mercaptohexadecanoic acid (MHDA) monolayer. Morphological a...

A polymer-coated surface acoustic wave (SAW)-based chemical sensor for organophosphorous compound sensing at extremely low concentrations was developed, in which a dual-delay-line oscillator coated with fluoroalcoholpolysiloxane (SXFA) acted as the sensor element. Response mechanism analysis was performed on the SXFA-coated chemical sensor, resulting in the optimal design parameters. The shear ...

Let G be a countable infinite amenable group and P be a polyhedron. We give a construction of minimal subshifts of P with arbitrarily mean topological dimension less than dimP .

Highly textured undoped (pure) and Al doped ZnO nanocrystalline thin films prepared by ultrasonic atomization and pyrolysis method are reported in this paper. ZnCl2 water solution was converted into fine mist by ultrasonic atomizer (Gapusol 9001 RBI Meylan, France). The mist was pyrolyzed on the glass substrates in horizontal quartz reactor placed in furnace. The Structural and microstructural ...

Deoxydinucleoside methylphosphonates were prepared by chemical synthesis and were introduced stereospecifically into the lac operator at two sites. These sites within d(ApApTpTpGpTpGpApGpCpGpGpApTpApApCpApApTpT), segment I, and d(ApApTpTpGpTpTpApTpCpCpGpCpTpCpApCpApApTpT), segment II, are indicated by p. Each segment containing a chiral methylphosphonate was annealed to the complementary unmodi...