PMID- 20588950
OWN - NLM
STAT- MEDLINE
DCOM- 20101122
LR  - 20181023
IS  - 1094-4087 (Electronic)
IS  - 1094-4087 (Linking)
VI  - 18
IP  - 11
DP  - 2010 May 24
TI  - Light induced patterning of poly(dimethylsiloxane) microstructures.
PG  - 10947-55
LID - 10.1364/OE.18.010947 [doi]
AB  - A new method for direct patterning of Poly(dimethylsiloxane) (PDMS) 
      microstructures is developed by taking advantage of photorefractive effect in a 
      functionalized substrate. Here we show that when a x-cut Iron doped Lithium 
      Niobate (LN) crystal is exposed to appropriate structured laser light, a charge 
      density pattern builds-up in the crystal and a space charge field arise that is 
      able to induce self-patterning of the PDMS liquid film deposited on its surface 
      via the dielectrophoretic effects. Proper heating treatment allows to achieve 
      polymeric linking process creating a solid and stable PDMS microstructures. The 
      self-patterned structures replicate the illuminating light pattern. We show that 
      1D and 2D patterning of PDMS gratings can be achieved. This new soft-lithographic 
      approach can pave the way for realizing PDMS micro-structures with high degree of 
      flexibility that avoids the need of moulds fabrication.
FAU - Miccio, Lisa
AU  - Miccio L
AD  - Istituto Nazionale di Ottica del CNR, INO-CNR Via Campi Flegrei, 
      34-80078-Pozzuoli, Na, Italy. lisa.miccio@inoa.it
FAU - Paturzo, Melania
AU  - Paturzo M
FAU - Finizio, Andrea
AU  - Finizio A
FAU - Ferraro, Pietro
AU  - Ferraro P
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Opt Express
JT  - Optics express
JID - 101137103
RN  - 0 (Dimethylpolysiloxanes)
RN  - 63148-62-9 (baysilon)
SB  - IM
MH  - Dimethylpolysiloxanes/*chemistry/*radiation effects
MH  - Light
MH  - Materials Testing
MH  - Miniaturization
MH  - Refractometry/*methods
MH  - Surface Properties
EDAT- 2010/07/01 06:00
MHDA- 2010/12/14 06:00
CRDT- 2010/07/01 06:00
PHST- 2010/07/01 06:00 [entrez]
PHST- 2010/07/01 06:00 [pubmed]
PHST- 2010/12/14 06:00 [medline]
AID - 199439 [pii]
AID - 10.1364/OE.18.010947 [doi]
PST - ppublish
SO  - Opt Express. 2010 May 24;18(11):10947-55. doi: 10.1364/OE.18.010947.