Microcontact printing and

Rogers, J. A. Jackman, R. J. Whitesides, G. M. 1997. Microcontact printing and electroplating on curved substrates Production of free-standing three-dimensional metallic microstructures. Adv. Mater. 9 475 477. 

Fig. 21A-C. Electron microscopic graph of a structure hierarchy over three organization levels [108] prepared with the aid of microcontact-printing and self-assembly A microcontact sample (d=15 pm) B macroporous structirre (d=200 nm) C mesoporous structure (d=2 nm)...

Figure 9.8 (a) AFM and (b) LFM image of patterned PAN I films (Reprinted with permission from Applied Surface Science, Fabrication of patterned polyaniline microstructure through microcontact printing and electrochemistry by Fei Guan, Miao Chen, Wu Yangetal., 230, 1—4, 131-137. Copyright (2004) Elsevier ltd)... 

Figure 1.2 Top-down and bottom-up approaches for nanofabrication. Examples shown (clockwise from top) are an electron microscopy image of a nanomechanical electrometer obtained by electron-beam lithography, patterned films of carbon nanotubes obtained by microcontact printing and catalytic growth, a single carbon nanombe connecting two electrodes, a regular metal-organic nanoporous network integrating iron atoms and functional molecules, and seven carbon monoxide molecules forming the letter C positioned with the tip of a STM.

Zangmeister, R.A.P., D.F. O Brien, and N.R. Armslrong (2002). Selective deposition of rod-hke phthalocyanine aggregates on An surfaces patterned with a combination of microcontact printing and electropolymerization. Adv. Func. Mater. 12(3), 179-186. 

Ligands have to be applied on discrete spots in the i,m range on the surface of microarrays. There are several methods for forming patterns on gold surfaces UV photopatterning, microcontact printing, and robotic spotting, all of which have been used for SPRi arrays (11). 

Patterned SAMs are composed of two or more SAMs which are deliberately distributed on specific areas on the surface. They can be fabricated in different ways including microcontact printing and dip-pen nanolithography. Patterned SAMs have been used to attract particular nanostructures like ribbons or wires to particular areas on the surface. They have also been used in the functionalization of biosensors in which the localized SAMs have an affinity for specific cells and proteins. Crystallization on patterned SAMs where the crystals grow in localized areas has also been demonstrated. 

Future work on these composite superlattices will focus on patterning applications (e.g., using microcontact printing) and the generation of magnetic and redox-tunable multilayers that take advantage of the unique features of polyferrocenylsilanes. 

To build a crude organism would require resolution at the scale of about 10 /u.m. Most current freeforming methods allow resolution down to about 100 /um and a limited materials set. Microcontact printing and related methods allow much higher resolution, down to about 1 /zm, but effectively are restricted to one layer. There is much current interest in ink-jet printing methods, which could provide the required 10-/um resolution while allowing many layers to be deposited. 

Jeon NL, Choi IS, Whitesides GM, Kim NY et al. (1999) Patterned polymer growth on silicon surfaces using microcontact printing and surface-initiated polymerization. Appl Phys Lett... 

Sun, Z.Q., Zhang, K., Zhao, B., and Yang, B. (2006) Ordered silica microspheres unsymmetrically coated with Ag nanoparticles, and Ag-nanopartide-doped polymer voids fabricated by microcontact printing and... 

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