In Situ Luminescence Probing of the Chemical and Structural Changes during Formation of Dip-Coated Lamellar Phase Sodium Dodecyl Sulfate Sol−Gel Thin Films

2000 ◽  
Vol 122 (15) ◽  
pp. 3739-3745 ◽  
Author(s):  
Michael H. Huang ◽  
Bruce S. Dunn ◽  
Jeffrey I. Zink
Keyword(s):  
Thin Films ◽  
Sodium Dodecyl Sulfate ◽  
Structural Changes ◽  
Sol Gel ◽  
Sodium Dodecyl ◽  
Lamellar Phase ◽  
Dodecyl Sulfate

Ionic properties of an organic-inorganic sol-gel hybrid based on polydimethylsiloxane and tetraethoxysilane doped with sodium dodecyl sulfate

2010 ◽  
Vol 115 (2) ◽  
pp. 851-854 ◽  
Author(s):  
Raffael Costa de Figueiredo Pinto ◽  
Carlos William de Araujo Paschoal ◽  
Waldeci Paraguassu ◽  
Manoel Carvalho Castro ◽  
Auro Atsuchi Tanaka ◽  
...  
Keyword(s):  
Sodium Dodecyl Sulfate ◽  
Sol Gel ◽  
Sodium Dodecyl ◽  
Dodecyl Sulfate

Phase Transformations in Sol-Gel PZT Thin Films

2000 ◽  
Vol 623 ◽  
Author(s):  
D.P. Eakin ◽  
M.G. Norton ◽  
D.F. Bahr
Keyword(s):  
Thin Films ◽  
Heat Treatment ◽  
Room Temperature ◽  
Structural Changes ◽  
Sol Gel ◽  
Ex Situ ◽  
Ambient Conditions ◽  
Crystalline Films ◽  
In Situ Heating

AbstractThin films of PZT were deposited onto platinized and bare single crystal NaCl using spin coating and sol-gel precursors. These films were then analyzed using in situ heating in a transmission electron microscope. The results of in situ heating are compared with those of an ex situ heat treatment in a standard furnace, mimicking the heat treatment given to entire wafers of these materials for use in MEMS and ferroelectric applications. Films are shown to transform from amorphous to nanocrystalline over the course of days when held at room temperature. While chemical variations are found between films crystallized in ambient conditions and films crystallized in the vacuum conditions of the microscope, the resulting crystal structures appear to be insensitive to these differences. Significant changes in crystal structure are found at 500°C, primarily the change from largely amorphous to the beginnings of clearly crystalline films. Crystallization does occur over the course of weeks at room temperature in these films. Structural changes are more modest in these films when heated in the TEM then those observed on actual wafers. The presence of Pt significantly influences both the resulting structure and morphology in both in situ and ex situ heated films. Without Pt present, the films appear to form small, 10 nm grains consisting of both cubic and tetragonal phases, whereas in the case of the Pt larger, 100 nm grains of a tetragonal phase are formed.

Polymer-induced structural changes in lecithin/sodium dodecyl sulfate-based multilamellar vesicles

2004 ◽  
Vol 270 (1) ◽  
pp. 187-194 ◽  
Author(s):  
Daniela Robertson ◽  
Thomas Hellweg ◽  
Brigitte Tiersch ◽  
Joachim Koetz
Keyword(s):  
Sodium Dodecyl Sulfate ◽  
Structural Changes ◽  
Sodium Dodecyl ◽  
Multilamellar Vesicles ◽  
Dodecyl Sulfate

Electrophoretic characterization of endo-(1,4)-β-glucanases secreted during assimilative growth and antheridiol-induced branching inAchlya ambisexualis

1996 ◽  
Vol 42 (6) ◽  
pp. 557-561 ◽  
Author(s):  
Terry W. Hill
Keyword(s):  
Enzyme Activity ◽  
Sodium Dodecyl Sulfate ◽  
Cell Walls ◽  
Sodium Dodecyl ◽  
Achlya Ambisexualis ◽  
Dodecyl Sulfate ◽  
Exclusion Chromatography ◽  
Molecular Masses

Secreted endo-(1,4)-β-glucanases ("cellulases") of Achlya ambisexualis were analyzed by a technique that permits visualization of enzyme activity in situ after electrophoresis in gels containing sodium dodecyl sulfate. Catalytic polypeptides with molecular masses of about 97, 74, 36, 29, and 25 kDa were observed in media from young cultures, though progressively fewer bands were observed as cultures aged. Based on size estimations of native enzymes with gel exclusion chromatography, the 97- and 36-kDa polypeptides were concluded to be subunits of a 245-kDa holoenzyme and the 25-kDa polypeptides were concluded to be subunits of a second holoenzyme of about 92 kDa. The data were insufficient to allow similar assignments for the more ephemeral 74- and 29-kDa polypeptides. The endoglucanases secreted during branch induction by antheridiol or 0.2% peptone comigrated in electrophoretic gels with enzymes secreted during normal assimilative growth. No endoglucanases specific to induced branching were observed.Key words: oomycetes, cell walls, endoglucanases, cellulases, antheridiol.

Affinity purification of polyclonal antibodies from antigen immobilized in situ in sodium dodecyl sulfate-polyacrylamide gels

1990 ◽  
Vol 187 (2) ◽  
pp. 246-250 ◽  
Author(s):  
Patricia J. Madara ◽  
Lisa R. Banghart ◽  
Lucinda J.W. Jack ◽  
Luz M. Neira ◽  
Ian H. Mather
Keyword(s):  
Sodium Dodecyl Sulfate ◽  
Polyclonal Antibodies ◽  
Affinity Purification ◽  
Sodium Dodecyl ◽  
Polyacrylamide Gels ◽  
Dodecyl Sulfate

The Effect of Sodium Dodecyl Sulfate on PEDOT:PSS and Its Application to Organic Photovoltaic Solar Cells

2015 ◽  
Vol 15 (10) ◽  
pp. 7652-7656 ◽  
Author(s):  
Ki-Hwan Hwang ◽  
Hyeon Jin Seo ◽  
Sang-Hun Nam ◽  
Jin-Hyo Boo
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Sodium Dodecyl Sulfate ◽  
Sodium Dodecyl ◽  
Basic Research ◽  
Solar Simulator ◽  
Force Microscopy ◽  
Dodecyl Sulfate ◽  
Coating Method ◽  
Photovoltaic Solar Cells

Recently, the use of PEDOT:PSS in flexible device electrodes has been reported. PEDOT:PSS treatment consists of a step in which a small amount of surfactant is added to enhance the adhesion between PEDOT:PSS and the substrate or TCO materials. However, basic research into the effect of the surfactant is lacking. We studied the effects of sodium dodecyl sulfate (SDS) at controlled concentrations in aqueous PEDOT:PSS solution and that it enhanced the conductivity in the mixed thin films with surfactant and PEDOT:PSS. The thin films were prepared by the spin coating method. To study the structural effects on the resulting electrical properties, the thin films were investigated by FE-SEM (Field Emission Scanning Electron Microscopy) and AFM (Atomic Force Microscopy). At the same time, the electrical properties were investigated using a 4-point probe and solar simulator.

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