High-pressure CO2 treatment has been studied as a promising method for inactivating bacterial spores. In the present study, we compared this method with other sterilization techniques, including heat and pressure treatment. Spores of Bacillus coagulans, Bacillus subtilis, Bacillus cereus, Bacillus licheniformis, and Geobacillus stearothermophilus were subjected to CO2 treatment at 30 MPa and 35...

By the means of density functional theory calculations, we find that CO2 activation via reverse water−gas shift (r-WGS) follows different elementary steps on different metals (Pt, Rh, Ni, Cu, Ag, and Pd). We relate these differences to the interactions between the adsorbed oxygen and the metals, which strongly affect the dissociation activation energy. In particular, CO2 dissociation is favored...

Hf-phosphinoamide cation complexes behave as metal-based frustrated Lewis pairs and bind one or two equivalent of CO2 and in as well can activate CO2 in a bimetallic fashion to give a pseudo-tetrahedral P2CO2 fragment linking two Hf centres.

Gu, Xiang Q., Hang Yao, and Gabriel G. Haddad. Effect of extracellular HCO3 2 on Na channel characteristics in hippocampal CA1 neurons. J Neurophysiol 84: 2477–2483, 2000. The effect of HCO3 /CO2 on membrane properties of isolated hippocampal CA1 neurons was studied with the use of the whole cell configuration of the patch-clamp technique. Neurons were acutely dissociated from 21to 30-day-old m...

Systematic density-functional calculations have been performed to address an important issue for CO oxidation on redox ceria: the role of lattice oxygen. One major findings is that CO easily grasps one lattice oxygen atom to form CO2 and CO2 on CeO2 (111) and Ce0.75Zr0.25O2 (111) with small activation energies. Zr dopants facilitate the reduction of Ce to Ce and hence weaken the Ce–O bonds, whi...

Olfactory information drives several behaviours critical for the survival and persistence of insect pests and vectors. Insect behaviour is variable, linked to their biological needs, and regulated by physiological dynamics. For mosquitoes, CO2 is an important cue that signifies the presence of a host, and which elicits activation and attraction. To investigate the genetic basis of olfactory mod...

Metallic catalysts are capable of designing multifunctional for efficient CO2−ODP reaction owing to their high abilities C−H scission, CO2 capture/activation, and coke removal. In this review, the catalyst design concepts metallic materials recent developments in summarized, categorizing them as monometallic, bimetallic multimetallic materials.

We have used a sensitive new technique to assess the mechanism(s) of adrenergic inhibition of rainbow trout (Oncorhynchus mykiss) red blood cell (RBC) carbon dioxide excretion in vitro. The effect was only apparent using blood acidified to simulate metabolic acidosis. Red blood cell CO2 excretion was inhibited in a dose-dependent manner by physiologically relevant concentrations of noradrenalin...