The Langmuir and Langmuir-Blodgett technologies have unique advantages which explains their wide usage worldwide to study some of the most essential scientific questions. These advantages include:
KSV NIMA Langmuir and Langmuir-Blodgett Troughs are used for creating highly sophisticated organized films. The applications include:
Materials commonly used for thin film creation include
KSV NIMA offers a wide selection of L and LB Troughs with various sizes and functions. Our L and LB systems are fully modular, and one frame can be used for different sizes and types of trough tops. In addition to the standard assortment below, custom trough tops can be constructed by request.
The trough tops are interchangeable within seconds, i.e. the standard frame can accept any of the small or medium-sized trough tops, and the larger frames can also accept the smaller trough tops in addition to the bigger ones.
Standard Langmuir Troughs are available in several sizes depending on the need. The smaller trough tops are preferable when using expensive molecules whereas the bigger systems provide more space to be combined with characterization instruments and provide a higher compression ratio.
A KSV NIMA Microscopy Trough is a special kind of Langmuir Trough containing either an upright or inverted microscopy window. The window allows high optical transmission down to a wavelength of 200 nm (suitable for visible light or UV microscopy).
The Langmuir Ribbon Barrier Trough enables the study of floating monolayers at high packing densities (e.g. > 70 mN/m for DPPC) by monolayer confinement. Working at high surface pressures is required in the study of phenomena such as lung surfactant (DPPC) behavior in alveoli.
The Liquid-Liquid Langmuir Troughs extend the capability to use both liquid-liquid and air-liquid interfaces. The liquid-liquid interface is often used to study, for example, emulsion stability and properties of oil and gas, food- and cosmetics or in pharmaceutical research.
The standard KSV NIMA LB Troughs are also available in several sizes from small to large. Depending on the size of the system, you can deposit LB films on samples ranging in size from a few square millimeters to many tens of square centimeters. The LB dipping mechanism can also be easily fitted with a LS deposition kit for horizontal Langmuir-Schaefer deposition.
The KSV NIMA Alternate Trough is the premium Langmuir-Blodgett Trough. It can coat a substrate automatically using two different materials in the same experiment for even more advanced highly organized coatings. Materials can be deposited in any desired order and direction. The system uses two sets of barriers and pressure sensors to control packing density separately for each material used.
KSV NIMA LB Software is a powerful tool for creating coatings and studying Langmuir films. Based on 30 years of experience, KSV NIMA LB Software includes all the tools needed for effective and easy measurements and data processing.
The versatile measurement modes enable measurements from dipping all the way to compression isotherms, adsorption studies and interfacial rheology. The software saves the entire measurement setup together with the results for convenient analysis. All data can be easily viewed, plotted, reported and exported as needed.
The measurement features include:
LB and LS techniques provide the platform for creating highly organized and packed nanoparticle layers. These coatings can have special functionality for novel applications.
A monolayer of 200nm-diameter polystyrene nanospheres deposited on a quartz substrate using the Langmuir-Blodgett technique on a KSV NIMA Medium trough. (a) AFM image of the monolayer, (b) a Fourier transform of the same image exhibiting the exceptional crystallinity achievable with this technique. Copyright Dr. Alaric Taylor
Dip coating, LB and LS techniques have shown to be excellent methods for controlled preparation of thin films of graphene and graphene oxide. These methods offer a great amount of control for depositing dispersed SG and SGO produced by the liquid exfoliation methods. Because the liquid exfoliation methods are recognized as having the most potential for producing graphene on an industrial scale, these deposition methods are of great importance in graphene research.