Switches and sensors play important roles in our everyday lives. The chemical properties of RNA make it amenable for use as a switch or sensor, both artificially and in nature. This review focuses on recent advances in artificial RNA switches and sensors. Researchers have been applying classical biochemical principles such as allostery in elegant ways that are influencing the development of bio...

In this work, the effects of temperature, acid concentration, and mechanical activation on dissolution of ilmenite were studied using the statistical design of experiment technique. Mechanical activation was carried out using a planetary ball mill in dry mode, and the resulting structural changes were characterized by the particle size analysis, specific surface area measurements, and X-ray dif...

The electron donating properties, surface acidity/basicity and catalytic activity of lanthana for various dopaut concentrations of strontium are reported at two activation temperatures. The catalytic activity has been correlated with electron donating properties and surface acidity/basicity of the oxide.

Dinuclear gold complexes have the ability to interact with one or more substrates in a dual-activation mode, leading to different reactivity and selectivity than their mononuclear relatives. In this contribution, this difference was used to control the catalytic properties of a gold-based catalytic system by site-isolation of mononuclear gold complexes by selective encapsulation. The typical du...

the sustainability of the built environment is increasingly coming to the forefront of infrastructure design and maintenance decisions. to address this, development of a new class of more sustainable cement-based materials is needed. fiber reinforced self-consolidating mortar (frscm) was developed by optimizing the micromechanical parameters, which control composite properties in the hardened s...

linear low density polyethylene (lldpe) was blended with esterified styrene-maleic anhydride (esma) and its physical and mechanical properties were studied. styrene-maleic anhydride (sma) copolymer was synthesized by precipitation reaction. then, sma was esterified by 1-decanol in methylethyl ketone solvent. from the ftir spectrum of esma it is evident that the corresponding peaks of anhydride ...

a study has been made of the compaction properties of two experimental starches, namely yam starch obtained from dioscorea rotundata and rice starch obtained from oryza sativa and the mechanical properties of their tablets, in comparison with those of official corn starch. the influences of the physical and geometric properties of the starch particles on the compression properties of the starch...

composite solid propellants were prepared with and without nano-alloys (ti-co, ti-ni, ti-zn), where nano-alloys used as catalyst. these nano-alloys are prepared by hydrazine reduction method. catalytic properties of these nanomaterials were measured on ammonium perchorate/hydroxyterminatedpolybutadiene propellant by thermogravimetery analysis and differential thermal analysis. both experimental...

1. Introduction 1. Introduction Zirconia is widely used due to its high oxygen diffusivity in various technological applications like gas sensors, fuel cells, catalytic membranes etc. The material shows an excellent thermal stability, combined with very good mechanical properties.