INPHAZE Applications: Thin Films

Self Assembled Molecular Layers (SAMs)

With the INPHAZE Electrical Spectrometer you can rapidly produce novel, publishable results about:

  • Molecular structure
  • Location and effects of molecules within the structure
  • Electrical ion transport properties
  • Biosensor applications

Self assembled organic monolayers (SAMs) and films can be readily constructed on both gold and other metal substrates using organic molecules terminating in a thiol, –SH, group.

Alternatively SAMs can be constructed using direct Si-C links on the surface of silicon wafers.

Functionalised surfaces can be obtained by self assembly of alkyl molecules terminating in –COOH or –NH2 groups.

This allows attachment of proteins or other larger molecules.

INPHAZE C10 - C18

Electrically the composite film can be subdivided into layers containing individual groups such as terminal carboxylate, –COOH, moieties and proteins attached to such groups and the INPHAZE low frequency Spectrometer can charcterise the dielectric properties of these layers individually.

The addition of adsorbed molecules or additional layers of molecules attached to the base layer can then be investigated.

Supported lipid films assembled on substrates can also be readily analyzed using the INPHAZE Electrical Spectrometer:

Coupling of an organic or biomolecule

hybrid bilayer

 

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