Patterning surfaces with polymer

Patterning Surfaces with Polymer Brushes by SECM.195... 

This section details the uses of patterning strategies, more particularly SECM based, in the context of the controlled growth of polymer brushes. First, a controlled polymerization reaction is used to get insight into the chemical reactivity of organic interfaces. For this purpose the ATRP-controlled polymerization is used to chemically amplify the reactivity of molecular moieties immobilized on a surface. Then, a second part explores the SECM strategies proposed to pattern surfaces with polymer brushes. 

Nie, Z., Kumacheva, E. Patterning surfaces with functional polymers. Nat Mater.. 2008, 7, 277-290. 

Li, X.F., Zhang, L.A., Wang, Y.X., Yang, X.L., Zhao, N., Zhang, XiL., et al. A bottom-up approach to fabricate patterned surfaces with asymmetrical Ti02 microparticles trapped in the holes of honeycomblike polymer film. J. Am. Chem. Soc. 133, 3736-3739 (2011)... 

Kruusamae, K., Brunette, P., Graziani, S., Punning, A., Di Pasquale, G. and Aabloo, A. (2009). Self-sensing ionic polymer-metal composite actuating device with patterned surface electrodes, Polymer International 59, 3, pp. 

Figure 5.10 Fabrication of a patterned surface with ink-jet technology using a photoreactive MFC polymer (PMBAz) for regulation of cell attachment.

Natoe of the subsUates and initiator (mono- to macromolecular from top to bottom of the ist) ayers used, as in Figure 8.14, for the SECM patterning of surfaces with polymer brushes. 

Julthongpiput D, Zhang W, Douglas JF, Karim A, Fasolka MJ (2007) Pattern-directed to isotropic dewetting transition in polymer films on micropattemed surfaces with differential surface energy contrast. Soft Matter 3 613-618... 

Recently, chemically patterned surfaces have attracted a lot of attention due to their potential use as templates for lateral ordering of polymer films. On a micrometer scale, liquid dewets such surfaces and segregates on surface areas which exhibit preferential interaction with the liquid [360,361 ]. A few successful attempts have been made to transfer a lateral variation in surface energy into a composition pattern in the polymer film [16,362,363]. Figure 39a shows a laterally patterned structure which consist of periodic stripes of alternating PVP and PS domains. One of the domains, e.g. PVP, could be removed by dissolution in a... 

Photoswitchable antigen/antibody (substrate/ receptor) complexes 1. Reversible immunosensors 2. Patterning of surfaces with biomaterials using antigen/antibody-biomaterial conjugates (Design of biosensor arrays, biochips) 1. Immobilization of systems on electronic transducers (electrodes, piezoelectric crystals, FET) or the assembly of biomaterials on inert supports by non-covalent interactions (eg. glass, polymers)... 

Thermally responsive polymers, such as poly( V-isopropyl acrylamide) (NI-PAm), have also been studied extensively for applications related to those previously discussed [112], De las Heras et al. described the synthesis and patterning of NIPAm brushes on SAMs and their subsequent performance during temperature-dependent adhesion assays of BSA and Streptococcus mutans (Fig. 7). The authors employed p.CP to pattern features of hydrophobic hexadecanethiol and backfilled the surface with an initiator-functionalized alkanethiol. Polymer brushes were grown via surface-initiated atom transfer radical polymerization (ATRP). FITC-BSA was then... 

---