Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Sudarsanan Varaprath"'
Autor:
Debra H. Stutts, Sudarsanan Varaprath
Publikováno v:
Journal of Organometallic Chemistry. 692:1892-1897
The potential of trichloroisocyanuric acid (TCCA) as a chlorination agent for efficient conversion of Si–H functional silanes and siloxanes to the corresponding Si–Cl functional moieties was explored. In comparison to methods using other chlorina
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d246d7036d91bf20942e22ec5ff035c9
https://doi.org/10.1016/j.jorganchem.2006.12.032
https://doi.org/10.1016/j.jorganchem.2006.12.032
Publikováno v:
Silicon Chemistry. 3:79-102
Silicones (polydimethylsiloxanes) find use in a wide variety of industrial and consumer product applications because of their outstanding properties. Potential human exposure to silicones occurs at the work place during manufacturing and product form
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3da47800c0f848405928a15c121cec4
https://doi.org/10.1007/s11201-006-9005-8
https://doi.org/10.1007/s11201-006-9005-8
Publikováno v:
Drug Metabolism and Disposition. 31:206-214
Hexamethyldisiloxane (MM or HMDS) and decamethylcylclopentasiloxane (D(5)) are examples of a linear and a cyclic siloxane, respectively. These volatile low molecular weight siloxanes are of significant commercial importance. To aid in the pharmacokin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e11a3bedae2c184ebc42a08ad6033bd6
https://doi.org/10.1124/dmd.31.2.206
https://doi.org/10.1124/dmd.31.2.206
Autor:
Melvin E. Andersen, Ivan D. Dobrev, Sudarsanan Varaprath, Jeremy Durham, Micaela B. Reddy, Debra A. McNett, Kathleen P. Plotzke
Publikováno v:
Inhalation Toxicology. 15:589-617
Gas uptake methods together with physiologically based pharmacokinetic (PBPK) modeling have been used to assess metabolic parameters and oral absorption rates for a wide variety of volatile organic compounds. We applied these techniques to study the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::441abb2f2f8c694dab491557b87d9206
https://doi.org/10.1080/08958370390205083
https://doi.org/10.1080/08958370390205083
Autor:
Paul S. Larson, Sudarsanan Varaprath
Publikováno v:
Journal of Polymers and the Environment. 10:119-131
The natural degradation of monophenylheptamethylcyclotetrasiloxane and 2,6-cis-diphenylhexamethylcyclotetrasiloxane in soil was evaluated under laboratory conditions. Both monophenyl and 2,6-cis underwent rapid degradation in dry soil generating the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ca7e32372bae0cc78de8a0ac4105a3e
https://doi.org/10.1023/a:1021146419479
https://doi.org/10.1023/a:1021146419479
Publikováno v:
International Journal of Environmental Analytical Chemistry. 77:203-219
A method was developed and validated to measure octamethylcyclotetrasiloxane (D4)† quantitatively by gas chromatography-mass spectrometry (GC-MS) at low level in extracts of several biological matrices that include plasma, liver, lung, feces and fa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6f15eef4cfad469f727905443dd1a36
https://doi.org/10.1080/03067310008032683
https://doi.org/10.1080/03067310008032683
Autor:
Lin Cao, Sudarsanan Varaprath
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 23:1539-1553
Efficient solid phase extraction (SPE) procedures were established to extract a variety of organosiloxanes and organosilanols at low concentrations from aqueous and biological matrices. The organosilicon materials used in SPE experiments were all 14C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9889b223c5bfb90edc68b151145622af
https://doi.org/10.1081/jlc-100100433
https://doi.org/10.1081/jlc-100100433
Autor:
Sudarsanan Varaprath
Publikováno v:
Journal of Organometallic Chemistry. 572:37-47
Simple procedures to synthesize a variety of 14C-labeled monomeric and polymeric siloxanes are described. Specifically, the synthesis of the following siloxanes, some of which are of significant commercial importance are provided: 14C-octamethylcyclo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::515a8261d22fc078c0f95a1ef6bc9b50
https://doi.org/10.1016/s0022-328x(98)00916-4
https://doi.org/10.1016/s0022-328x(98)00916-4
Publikováno v:
Environmental Toxicology and Chemistry. 14:1299-1305
Previous studies on one soil showed that silicone polymer (polydimethylsiloxane, or PDMS) degrades to dimethyl-silanediol (DMSD). This study examines PDMS degradation on seven U.S. soils differing in pH, % organic matter, texture, mineralogy, and geo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4ce3db7e3ac37151afc73d56f3d5b80
https://doi.org/10.1002/etc.5620140806
https://doi.org/10.1002/etc.5620140806
Publikováno v:
Environmental Toxicology and Chemistry. 13:1753-1759
Silicone (polydimethylsiloxane, or PDMS) fluids are widely used in industrial and consumer products and may find their way into municipal sludges that are eventually applied to the land. Earlier studies showed that PDMS degrades in soil to low-molecu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86b67d80777355ab8839e8e898e27bcf
https://doi.org/10.1002/etc.5620131106
https://doi.org/10.1002/etc.5620131106