Sintered silica colloidal crystals with fully hydroxylated surfaces.

Sintered silica colloidal crystals with fully hydroxylated surfaces. Research Abstract Details 

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Sintered silica colloidal crystals with fully hydroxylated surfaces. Abstract Text:

Thai Van Le,Eric E Ross,Tomika R C Velarde,Michael A Legg,Mary J Wirth,

Silica colloidal crystals require multiple processing steps before they are useful materials in analytical applications, such as chemical separations, microarrays, sensors, and total internal reflection microscopy. These chemical processing steps include calcination, sintering, surface rehydroxylation, and chemical modification, but these steps have not been fully characterized for colloidal crystals. Silica particles of nominally 200 nm in diameter were prepared, and FTIR, SEM, UV-visible spectroscopy, and refractive index measurements were used to study the changes in chemical composition, particle size, and particle density throughout the process. The final material is shown to be a durable, crack-free crystal of solid particles bearing a fully hydroxylated surface of silanols, which can then be chemically modified.

Sintered silica colloidal crystals with fully hydroxylated surfaces. Publishing Authors By Initials

T Van Le,EE Ross,TR Velarde,MA Legg,MJ Wirth,

For similar natural sciences: chemistry: chemistry, physical: surface properties research abstracts see: natural sciences: chemistry: chemistry, physical: surface properties research

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Sintered silica colloidal crystals with fully hydroxylated surfaces. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Langmuir : the ACS journal of surfaces and colloid

VOLUME: 23

Page Numbers: 8554-9

Journal Abbreviation:

ISSN: 0743-7463

DAY: 27

MONTH: 06

YEAR: 2007

Sintered silica colloidal crystals with fully hydroxylated surfaces. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 9882736

Sintered silica colloidal crystals with fully hydroxylated surfaces. Keywords Mesh Terms:

KEYWORDS: Surface Properties

MESH TERMS: chemistry

Chemical & Substance for Abstract: Sintered silica colloidal crystals with fully hydroxylated surfaces. Information

Substance Name: Silicon Dioxide

Registry Number: 7631-86-9

Grant and Affiliation Information for Sintered silica colloidal crystals with fully hydroxylated surfaces.

AFFILIATION: Department of Chemistry, The University of Arizona, Tucson, Arizona 85721, USA.

Country: United States

AGENCY: United States NIGMS

GRANT: 1 R01 GM65980

ACRONYM: GM

MEDLINETA: Langmuir

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