Chromatography with Dynamically Created Liquid “Stationary” Phases:  Methanol and Carbon Dioxide

2003 ◽  
Vol 75 (14) ◽  
pp. 3557-3562 ◽  
Author(s):  
Z. Luo ◽  
Y. Xiong ◽  
J. F. Parcher
Keyword(s):  
Carbon Dioxide ◽  
Stationary Phases

Chiral separations of metoprolol and some analogs with carbon dioxide on chiralcel OD and chiralpak AD stationary phases. Use of chemometrics

2000 ◽  
Vol 51 (5-6) ◽  
pp. 283-293 ◽  
Author(s):  
S. Svensson ◽  
A. Karlsson ◽  
O. Gyllenhaal ◽  
J. Vessman
Keyword(s):  
Carbon Dioxide ◽  
Stationary Phases ◽  
Chiral Separations ◽  
Chiralcel Od

scholarly journals Effects of Carbon Dioxide on Growth of Proteolytic Clostridium botulinum, Its Ability To Produce Neurotoxin, and Its Transcriptome

2009 ◽  
Vol 76 (4) ◽  
pp. 1168-1172 ◽  
Author(s):  
Ingrid Artin ◽  
David R. Mason ◽  
Carmen Pin ◽  
Jenny Schelin ◽  
Michael W. Peck ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Clostridium Botulinum ◽  
Stationary Phases ◽  
Expression Profiles ◽  
Modified Atmosphere Packaging ◽  
Growth Cycle ◽  
Enzyme Linked Immunosorbent Assay ◽  
Modified Atmosphere ◽  
Late Stationary Phase ◽  
Reverse Transcription Pcr

ABSTRACT The antimicrobial gas carbon dioxide is frequently used in modified atmosphere packaging. In the present study, the effects of CO2 (10 to 70%, vol/vol) on gene expression (measured using quantitative reverse transcription-PCR and a whole-genome DNA microarray) and neurotoxin formation (measured using an enzyme-linked immunosorbent assay [ELISA]) by proteolytic Clostridium botulinum type A1 strain ATCC 3502 were studied during the growth cycle. Interestingly, in marked contrast to the situation with nonproteolytic C. botulinum types B and E, CO2 had little effect on any of these parameters. At all CO2 concentrations, relative expression of neurotoxin cluster genes peaked in the transition between exponential and stationary phases, with evidence of a second rise in expression in late stationary phase. Microarray analysis enabled identification of coding sequences whose expression profiles matched those of the neurotoxin cluster. Further research is needed to determine whether these are connected to neurotoxin formation or are merely growth phase associated.

Effect of silane reagent functionality for fluorinated alkyl and phenyl silica bonded stationary phases prepared in supercritical carbon dioxide

2008 ◽  
Vol 1191 (1-2) ◽  
pp. 99-107 ◽  
Author(s):  
Norma M. Scully ◽  
Liam O. Healy ◽  
Tom O’Mahony ◽  
Jeremy D. Glennon ◽  
Benjamin Dietrich ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Stationary Phases ◽  
Bonded Stationary Phases ◽  
Supercritical Carbon

Electron Cytochemical Study of Carbon Dioxide Laser Effect on Rhesus Monkey Cornea

1974 ◽  
Vol 32 ◽  
pp. 224-225
Author(s):  
K. C. Tsou ◽  
J. Morris ◽  
P. Shawaluk ◽  
B. Stuck ◽  
E. Beatrice
Keyword(s):  
Carbon Dioxide ◽  
Electron Microscope ◽  
Rhesus Monkey ◽  
Carbon Dioxide Laser ◽  
Cytochemical Study ◽  
Laser Effect

While much is known regarding the effect of lasers on the retina, little study has been done on the effect of lasers on cornea, because of the limitation of the size of the material. Using a combination of electron microscope and several newly developed cytochemical methods, the effect of laser can now be studied on eye for the purpose of correlating functional and morphological damage. The present paper illustrates such study with CO2 laser on Rhesus monkey.

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