Germanane Monolayer Films as Antibacterial Coatings

In this work, macroscopical monolayer films of ordered arrays of gold nanoparticles (MMF-OA-Au NPs) are successfully prepared at the interfaces of toluene-diethylene glycol (DEG) with a water volume fraction of...

Download Full-text

Analysis and Dynamics of Extended Atomic Defects in Coalesced WS2 Monolayer Films

Microscopy and Microanalysis ◽

10.1017/s1431927621007108 ◽

2021 ◽

Vol 27 (S1) ◽

pp. 1954-1955

Author(s):

Danielle Reifsnyder Hickey ◽

Saiphaneendra Bachu ◽

Leixin Miao ◽

Nasim Alem

Keyword(s):

Monolayer Films ◽

Ws2 Monolayer

Download Full-text

Robust Nanocapacitors Based on Wafer-Scale Single-Crystal Hexagonal Boron Nitride Monolayer Films

ACS Applied Nano Materials ◽

10.1021/acsanm.1c00298 ◽

2021 ◽

Author(s):

Yanwei He ◽

Yuan Li ◽

Miguel Isarraraz ◽

Pedro Pena ◽

Jason Tran ◽

...

Keyword(s):

Boron Nitride ◽

Single Crystal ◽

Hexagonal Boron Nitride ◽

Monolayer Films ◽

Wafer Scale

Download Full-text

Metastability in Monolayer Films Transferred onto Solid Substrates by the Langmuir-Blodgett Method: IR Evidence for Transfer-Induced Phase Transitions

Applied Spectroscopy ◽

10.1366/0003702944027309 ◽

1994 ◽

Vol 48 (10) ◽

pp. 1196-1203 ◽

Cited By ~ 18

Author(s):

Fazale R. Rana ◽

Suci Widayati ◽

Brian W. Gregory ◽

Richard A. Dluhy

Keyword(s):

Fatty Acid ◽

Conformational Changes ◽

Structural Changes ◽

High Surface ◽

Solid Substrate ◽

Water Interface ◽

Monolayer Films ◽

Langmuir Blodgett ◽

Monomolecular Film ◽

Air Water Interface

The rate at which a monomolecular film is deposited onto a solid substrate in the Langmuir-Blodgett process of preparing supported monolayer films influences the final structure of the transferred film. Attenuated total reflectance infrared spectroscopic studies of monolayers transferred to germanium substrates show that the speed at which the substrate is drawn through the air/water interface influences the final conformation in the hydrocarbon chains of amphiphilic film molecules. This transfer-induced effect is especially evident when the monolayer is transferred from the expanded region of surface-pressure-molecular-area isotherms at low surface pressures; the effect is minimized when the film molecules are transferred from condensed phases at high surface pressures. This phenomenon has been observed for both a fatty acid and a phospholipid, which suggests that these conformational changes may occur in a variety of hydrocarbon amphiphiles transferred from the air/water interface. This conformational ordering may be due to a kinetically limited phase transition taking place in the meniscus formed between the solid substrate and aqueous subphase. In addition, the results obtained for both the phospholipid and fatty acid suggest that the structure of the amphiphile may help determine the extent and nature of the transfer-speed-induced structural changes taking place in the monomolecular film.

Download Full-text