In situ monitoring of metal-organic framework assembly
with MP-SPR

Application Note #112

polyelectrolyte measurement


Figure 2. SPR sensogram from both Fixed Angle experiment (orange curve and right hand y-axis), and Angular Scan experiment (black curve and left hand y-axis).

 

Multi-Parametric Surface Plasmon Resonance (MP-SPR) instrument was used for precise in situ monitoring of the Metal Organic Framework (MOF) assembly of [Cu3BTC2(H2O)n]. MOF layer complex refractive index (RI) was calculated in two different media, in air and in ethanol. Based on known layer thickness (1.3nm/bilayer) complex RI was determined to be in ethanol ñ = 1.5085 + i 0.0065 and in air ñ = 3.784 + i 0.0123.

Metal-organic frameworks (MOFs) are crystalline supramolecular assemblies that are built up from precisely defined subunits by coordination or covalent interactions [1]. MOFs are usually highly porous, and they offer a wide range of applications where incorporation of guest molecules are needed. Applications include fuel storage, catalysis, drug delivery and gas sensing. A layer-by-layer (LbL) method for building MOF structures has been introduced, and it offers more control on the structure.

Recommended instrument for this application:

 

200_otso_small.jpg 400_KONTIO_LOGO_24012019_cropped.jpg 210_vasa_small.jpg 410A_KAURIS_instrument.jpg  220A_naali_small.jpg 420_ilves_small.jpg
200 OTSO 400 KONTIO 210A VASA  410A KAURIS  220A NAALI 420A ILVES 
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Further reading

  • You may be also interested in AN#153 about in situ deposited MOF thickness and refractive index and AN#146 about characterization of single sheet graphene in air.
  • Do you want to find out how to calculate thickness out of MP-SPR measurements? Click here.
  • Do you want to see MP-SPR instrument range? Click here.

  • Here are a few publications you can have a look at.

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