Patterning on solid surfaces

Cross-linking enzymes with e.g. glutardialdehyd and co-immobilization with bovine serum albumin yield thick and stable enzyme layer, with mediocre reproducibility however. The principal obstacle to immobilize proteins is that the conformational state of many proteins is very labile and unable to withstand the conditions used for deposition and patterning on solid surfaces. 

Andou et al. investigated the consecutive photo-induced GASP of MMA and St to build up a finely designed deposition of 2D and 3D patterns on solid surfaces (Figure 4.4) [14, 15]. Under UV-irradiation through a stripe-patterned photo mask on a Si-wafer or Au-plate surface, the photo-induced GASP resulted in the... 

Polyhexylthiophene 21, one of well-known conducting polymers, can form mesoscopic two-dimensional patterns on solid surfaces by also using the simple casting method. The mesoscopic stripe prepared from chloroform solution is expected to be a supramolecular cord because several hundred polymer chains are tied up in a bundle. To measure the photoconductivity of the single bundle one side of the stripe is contacted with an Ag-paste electrode and another side is contacted... 

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