Study of Langmuir-Blodgett Films of Synthetic Artificial Mimic Molecules Resembling the Following Tetraether Lipids on Silicon Wafers

The study investigated the nature and molecular organization of synthetic artificial mimic molecules resembling the following tetraether lipids: di-O-hexadecyl-glycero-3-phosphatidyl-glycerol (DHGPG) and bis-4-dodecylphenyl-12- phosphate. These molecules were analyzed using combinations of Langmuir film balance, ellipsometry and atomic force microscopy. Langmuir-Blodgett monolayer film from DHGPG and bis-4-dodecylphenyl-12-phosphate stable on modification solid surface silicon wafers (hydrophilic, hydrophobic and Amino-silanized). The ellipsometry and AFM results showed that the Langmuir-Blodgett monolayer films of DHGPG and bis-4-dodecylphenyl-12-phosphate were present, and the observed film thickness varied from 1.2 - 5.0 nm.

The modification of the solid surface-supported wafer silillon to hydrophilic, hydrophobic, Amino-silanized is very important and causes Langmuir Blodgett monolayer films of DHGPG and bis-4-dodecylphenyl-12-phosphate to become stable on a solid surface wafer silicon. If without surface modification of silicon wafer to hydrophilic or hydrophobic or Amino-silanized, Langmuir Blodgett monolayer film of DHGPG and bis-4-dodecylphenyl-12-phosphate have unstable.