PMID- 21727508
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20121002
LR  - 20110705
IS  - 0957-4484 (Print)
IS  - 0957-4484 (Linking)
VI  - 17
IP  - 10
DP  - 2006 May 28
TI  - Two-dimensional stick-slip on a soft elastic polymer: pattern generation using 
      atomic force microscopy.
PG  - 2581-9
LID - 10.1088/0957-4484/17/10/023 [doi]
AB  - It has been demonstrated that it is possible to create laterally differentiated 
      frictional patterning and three-dimensional structures using an atomic force 
      microscope (AFM) probe on the surface of a soft elastic polymer, 
      poly(dimethylsiloxane) (PDMS). The resulting effect of contact mode imaging at 
      low loading forces (<100 nN), observed in the lateral force mode, revealed a 
      homogeneous pattern on the PDMS surface exhibiting higher friction. With higher 
      loading forces ([Formula: see text] nN) the effect is non-uniform, resulting in 
      structures with depths on the nanometre scale. The topographic and frictional 
      data revealed stick-slip responses in both the fast (orthogonal to the long axis 
      of the lever) and slow (parallel to the long axis of the lever) directions of 
      probe travel from scanning in a raster pattern. The stick-slip events are 
      manifested in the form of a series of shallow channels spaced evenly apart on the 
      polymer surface. Detailed friction loop analysis acquired during the manipulation 
      process showed that the lateral force changed according to the strength of 
      trapping of the tip with the polymer surface exhibiting significant in-plane 
      deformation due to lateral forces being imposed. An incremental increase in the 
      initial loading force resulted in an increase in in-plane displacement and a 
      greater spacing between the stick lines/channels in the slow-scan direction. A 
      decrease in channel length in the fast-scan direction is also observed as a 
      result of an increase in static friction with normal force, resulting in greater 
      surface deformation and shorter track length for sliding friction.
FAU - Watson, J A
AU  - Watson JA
AD  - Nanoscale Science and Technology Centre, School of Science, Griffith University, 
      Kessels Rd, Nathan, 4111, Qld, Australia.
FAU - Brown, C L
AU  - Brown CL
FAU - Myhra, S
AU  - Myhra S
FAU - Watson, G S
AU  - Watson GS
LA  - eng
PT  - Journal Article
DEP - 20060428
PL  - England
TA  - Nanotechnology
JT  - Nanotechnology
JID - 101241272
EDAT- 2006/05/28 00:00
MHDA- 2006/05/28 00:01
CRDT- 2011/07/06 06:00
PHST- 2011/07/06 06:00 [entrez]
PHST- 2006/05/28 00:00 [pubmed]
PHST- 2006/05/28 00:01 [medline]
AID - S0957-4484(06)18696-1 [pii]
AID - 10.1088/0957-4484/17/10/023 [doi]
PST - ppublish
SO  - Nanotechnology. 2006 May 28;17(10):2581-9. doi: 10.1088/0957-4484/17/10/023. Epub 
      2006 Apr 28.