Detail of "3069-42-9"

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Template-synthesized bionanotubes for separations and biocatalysis

Template-synthesized bionanotubes for separations and biocatalysis. Lee, Sang Bok; Mitchell, David T.; Trofin, Lacramioara; Nevanen, Tarja K.; Soederlund, Hans; Martin, Charles R. (Department of Chemistry and Center for research at the Bio/Nano Interface, University of Florida, Gainesville, FL 32611-7200, USA). ACS Symposium Series, 879(Carrier-Based Drug Delivery), 98-117 (English) 2004 American Chemical Society. CODEN: ACSMC8. ISSN: 0097-6156. DOCUMENT TYPE: Journal; General Review CA Section: 9 (Biochemical Methods) A review.In this article, certain chemicals are used. Some of their cas registry numbers are 7631-86-9 and 3069-42-9 Synthetic bio-nanotubes were developed and used for sepns., including sepn. of enantiomers, and biocatalysis. The nanotubes were templated from alumina films that have cylindrical pores with monodisperse nanoscopic diams. A thin film of silica was chem. synthesized within the pores of these films to create the nanotubes. The nanotubes can be functionalized with a variety of chemistries, including proteins, by using silanes. Further, the inner and outer surfaces can be modified independently. Nanotubes liberated from the alumina template can be used as extractants or biocatalysts. Arrays of modified nanotubes left in the alumina template can be used as facilitated transport sepn. membranes. .

Kinetics of polymerization in Langmuir monolayers of n-alkyltrimethoxysilane

Kinetics of polymerization in Langmuir monolayers of n-alkyltrimethoxysilane. Fontaine, P.; Rondelez, F. (Laboratoire P.S.I., Institut Curie, PARIS 75231, Fr.Some commonly used reagents like 3069-42-9 is used in this experiment.). Proceedings of the Rencontre de Moriond, 30th(Short and Long Chains at Interfaces), 207-212 (English) 1995 Editions Frontieres. CODEN: PREMD5. ISSN: 1148-5825. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) We have studied the kinetics of the two step polymn. of octadecyltrimethoxysilane Langmuir monolayers. For the hydrolysis step, this was achieved through macroscopic p-A measurements which detect the change of mol. area assocd. with the replacement of the bulky methoxy groups by smaller hydroxy groups. Adjusting the pH of the bulk water allows control of the rate of hydrolysis. As for the condensation step, epifluorescence microscopy enables us to follow the apparition of the polymd. domains within the monolayer. At long times (2 h on pH 2 water subphase), one reaches a two dimensional sheet of mol. thickness ~25 ? and covering areas as large as several mm2. .