Chapter 13 Two-Dimensional Crystallization Of Particulates And Proteins

Title Chapter 13 Two-Dimensional Crystallization Of Particulates And Proteins
, Elsevier 2001
More details: Publisher Summary The chapter overviews the methods for producing ordered two-dimensional arrays from colloid particles and proteins in relation to their physical mechanisms and driving forces. The chapter focuses on the method for obtaining particle and protein two- dimensional arrays in evaporating liquid suspension films. The respective mechanism of two-dimensional crystallization is based on the fact that the decrease of the film thickness (because of evaporation) forces the particles to enter and/or deform the liquid interface that automatically ?«£switches on?�? the strong attraction because of the capillary immersion force. The chapter describes the the occurrence and advantages of two-dimensional array formation over a liquid substrate: fluorinated oil and mercury. The particle size separation during two-dimensional crystallization and the methods for obtaining large two-dimensional crystalline coatings on solid substrates are described in the chapter. This chapter considers only the formation of two-dimensional arrays in free foam films and their observation by electron cryomicroscopy, which ensures an excellent structure preservation of delicate vesicles or molecular complexes. The chapter reviews the various applications of particulate two-dimensional arrays in optics, optoelectronics, nano-lithography, microcontact printing, in fabrication of nanostructured surfaces for catalytic films and solar cells, as well as the usage of protein two-dimensional crystals for immunosensors and extremely isoporous ultrafiltration membranes?��for creation of bioelectronic and biophotonic devices.

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