Abstract
This study investigated the stability behaviour of molecular monolayer symmetric chemically modified tetraether lipids caldarchaeol-PO4 on the amino-silanised silicon wafer using Langmuir-Blodgett films, Self Assembling Monolayers (SAMs), ellipsometry, and atomic force microscopy (AFM). The monolayers of caldarchaeol-PO4 were stable on the solid surface amino-silanised silicon wafer. The organizations of molecular monolayers caldarchaeol-PO4 by Langmuir-Blodgett method and SAMs have been analyzed. The surface of pressure in Langmuir-Blodgett processing is carried out monolayers caldarchaeol-PO4 more flat island inhomogeneous. Another method of monolayers caldarchaeol-PO4 by SAMs is showed a large flat domain. Monolayers caldarchaeol-PO4 by Langmuir-Blodgett method seems to be stable and chemically resistant after washing with organic solvent and an additional treatment ultrasonification with various thickness lipids arround 2 nm to 6 nm. Conversely, monolayer caldarchaeol-PO4 by SAMs appears fewer than monolayers caldarchaeol-PO4 by Langmuir-Blodgett method, the thickness of various from 1 nm to 3 nm.
Highlights
This study investigated the stability behaviour of molecular monolayer symmetric chemically modified tetraether lipids caldarchaeol-PO4 on the amino-silanised silicon wafer using Langmuir-Blodgett films, Self Assembling Monolayers (SAMs), ellipsometry, and atomic force microscopy (AFM)
The monolayers of caldarchaeol-PO4 were stable on the solid surface amino-silanised silicon wafer
The amino-silanised substrate is prepared on the silicon wafer subtrates
Summary
Self-assembled phospholipid membranes play an important role in biological processes Mimicking these natural thin films, lipid-coated surfaces are of great importance to a number of biomedical applications, including intravenous drug delivery, biomaterials, and biosensors. Preparation of arranged monolayers using Langmuir-Blodgett method is established on the organic molecules, such as lipids or phospholipids, to form a monolayer in the air-water interfaces. Self-assembled monolayers (SAMs) are highly ordered molecular assemblies formed spontaneously by chemisorptions and self organization of the long chain molecules on the surface of appropriate substrates. This is an interesting process for biological relevance as it provides a new approach to complex structures having nanoscale dimensions. We studied to analyze the behaviour comparisons between monolayers Langmuir Blodgett with SAMs of caldarchaeol-PO4 on the amino-silanised silicon wafers using AFM and ellipsometry
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