PMID- 18189427
OWN - NLM
STAT- MEDLINE
DCOM- 20080402
LR  - 20131121
IS  - 0743-7463 (Print)
IS  - 0743-7463 (Linking)
VI  - 24
IP  - 3
DP  - 2008 Feb 5
TI  - Patterning of magnetic nanobeads on surfaces by poly(dimethylsiloxane) stamps.
PG  - 888-93
LID - 10.1021/la7018956 [doi]
AB  - Poly(dimethylsiloxane) (PDMS) stamps are widely used in soft lithographic 
      methods. They are powerful tools for obtaining structures of soft material in the 
      micrometer to nanometer range by printing techniques. In this contribution, a new 
      application of h-PDMS stamps for nanobead deposition is introduced. 
      Magnetite-polysaccharide particles of an average diameter of 150 nm are used. 
      They can be biologically functionalized by attaching various molecular groups. 
      Deposition of these particles on a carrier substrate results in well-reproducible 
      structures. This is achieved by means of PDMS stamps with different patterns 
      using a microfluidic approach on one hand and a printing approach on the other 
      hand. Furthermore, magnetic substrates with particular domain structures have 
      been used. The beads can then be arranged in rather complicated but well-defined 
      geometrical structures along the domain walls. The magnetic interaction 
      considerably increases the adhesion of the beads to the carrier substrate. All 
      involved materials are biocompatible. Thus the setup can be used in cell culture 
      experiments in order to investigate influences of different particle-bound 
      proteins and particle patterns on cell growth and vitality.
FAU - Issle, Juliane
AU  - Issle J
AD  - University of Saarland, Institute of Experimental Physics, P.O. Box 151 150, 
      66041 Saarbruecken, Germany. j.issle@mx.uni-saarland.de
FAU - Pla-Roca, Mateu
AU  - Pla-Roca M
FAU - Martinez, Elena
AU  - Martinez E
FAU - Hartmann, Uwe
AU  - Hartmann U
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20080112
PL  - United States
TA  - Langmuir
JT  - Langmuir : the ACS journal of surfaces and colloids
JID - 9882736
RN  - 0 (Coated Materials, Biocompatible)
RN  - 0 (Dimethylpolysiloxanes)
RN  - 0 (Silicones)
RN  - 63148-62-9 (baysilon)
RN  - XM0M87F357 (Ferrosoferric Oxide)
SB  - IM
MH  - Cell Line
MH  - Coated Materials, Biocompatible/chemistry
MH  - Dimethylpolysiloxanes/*chemistry
MH  - Ferrosoferric Oxide/*chemistry
MH  - Humans
MH  - Magnetics
MH  - Metal Nanoparticles/*chemistry/ultrastructure
MH  - Microfluidic Analytical Techniques
MH  - Microscopy, Atomic Force
MH  - Microscopy, Electron, Transmission
MH  - Nanotechnology
MH  - Osteoblasts/cytology
MH  - Silicones/*chemistry
MH  - Surface Properties
EDAT- 2008/01/15 09:00
MHDA- 2008/04/03 09:00
CRDT- 2008/01/15 09:00
PHST- 2008/01/15 09:00 [pubmed]
PHST- 2008/04/03 09:00 [medline]
PHST- 2008/01/15 09:00 [entrez]
AID - 10.1021/la7018956 [doi]
PST - ppublish
SO  - Langmuir. 2008 Feb 5;24(3):888-93. doi: 10.1021/la7018956. Epub 2008 Jan 12.