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Hermetische Mikroelektronik-Verkapselungen in der Luft- und Raumfahrt zur Vermeidung von Korrosion (1993)

Möller, W.

Weinheim [u.a.] : Wiley-Blackwell

Materials and Corrosion/Werkstoffe und Korrosion 44 (1993), S. 124-129

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ISSN: 0947-5117

Keywords: Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Description / Table of Contents: Corrosion-resistant, hermetic microelectronic packages for aerospace applicationsCorrosion-resistant, high reliable aerospace electronics need expensive ceramic substrates, noble metal conductors and very clean stainless steel or ceramic packages. The requirements, material technologies, problems and more economical packages are described.

Notes: Zur Vermeidung von Korrosionsschäden an Sicherheitselektroniken der Luft- und Raumfahrt sowie der Wehrtechnik werden vorzugsweise Keramik-Substrate und Edelmetall-Leiter sowie völlig feuchte- und salzfreie, hermetisch verschlossene Metall oder Keramikgehäuse verwendet. Die Anforderungen, Materialien, Technologien und Probleme der hermetischen Mikroelektronik-Verpackung wird im folgenden Aufsatz näher beschrieben werden.

Additional Material: 6 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/maco.19930440404

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Synthesis of affinity chromatography and electrophoresis matrices for the purification of bile acid transport proteins (1991)

Müllner, S. ; Möller, W. ; Ziegler, K. ; [et al.]

Springer

Chromatographia 32 (1991), S. 265-268

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ISSN: 1612-1112

Keywords: Affinity chromatography ; Affinity electrophoresis ; Bile acid transport proteins ; Bile acid derivatives

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Notes: Summary For the purification of the bile acid transport proteins from rat hepatocytes high affinity taurocholic acid derivatives were synthesized. One type was designed for coupling to a Sepharose matrix and the other for copolymerization with acrylamide. The resulting matrices were found to be suitable for affinity chromatography and affinity electrophoresis. In both syntheses, 3α, 12α-dihydroxy-7β-amino (tauro) cholic acid derivatives were used as the starting material, since substitution in this position had previously been shown not to alter transport affinity constant.