What is Langmuir Blodgett film used for?

What is Langmuir Blodgett film used for?

Langmuir Films are thin organic films of a thickness of just one molecule and are the source of high expectations. As useful components in many practical and commercial applications such as sensors, detectors, displays and electronic circuit components.

What is the Langmuir Blodgett technique?

The Langmuir-Blodgett (LB) technique is a way of making supra-molecular assembly in ultrathin films with a controlled layered structure and crystal parameter, which have many envisioned technological applications for optical and molecular electronic devices as well as signal processing and transformation.

Which technology is used in Langmuir Blodgett film?

The glucose biosensor can be made of poly(3-hexyl thiopene) as Langmuir–Blodgett film, which entraps glucose-oxide and transfers it to a coated indium-tin-oxide glass plate.

How does a Langmuir trough work?

A Langmuir–Blodgett trough (LB trough) is a laboratory apparatus that is used to compress monolayers of molecules on the surface of a given subphase (usually water) and measures surface phenomena due to this compression. It can also be used to deposit single or multiple monolayers on a solid substrate.

What is the difference between Langmuir film and Langmuir Blodgett film?

When a monolayer is fabricated at the gas-liquid or liquid-liquid interface, the film is a Langmuir film. A Langmuir film can be deposited on a solid surface and is thereafter called Langmuir-Blodgett film (in the case of vertical deposition) or Langmuir-Schaefer film (in the case of horizontal deposition).

What are Langmuir monolayers?

Langmuir monolayers are single monomolecular layers of a given surface active molecule at the air/liquid interface. The typical experimental procedure for the formation of Langmuir monolayers is rather simple.

What is mean molecular area?

mean molecular area = effective area of trough / number of molecules spread.

What does LB mean in film?

I think for Mandy it does pertain to “Low Budget” pictures.

What is the difference between a monolayer and a bilayer?

The difference is that in bilayers the flux of solution is expressed as a volume change of the vesicles and in monolayers as an area change. By extension, the same approach should apply for the surface pressure area lipid process.

What is monolayer water?

The bound water includes structural water (H-bonded water) and monolayer water, which is sorbed by the hydrophilic and polar groups of food components (polysaccharides, proteins, etc.). Bound water is unfreezable and it is not available for chemical reactions or as a plasticizer.

What is van der Waals envelope?

6.14). For a single molecule (i.e., molecule for which there is a path between any two atoms along covalent bonds), the van der Waals envelope is a closed surface, and hence, it contains volume. This volume is called the molecular volume, or van der Waals volume and is usually given in Å .

What is monolayer membrane model?

Lipid monolayers are a model system that mimics the outer leaflet of cell membranes [83].