PMID- 20445880
OWN - NLM
STAT- MEDLINE
DCOM- 20100716
LR  - 20100506
IS  - 1473-0197 (Print)
IS  - 1473-0189 (Linking)
VI  - 10
IP  - 10
DP  - 2010 May 21
TI  - A facile route for irreversible bonding of plastic-PDMS hybrid microdevices at 
      room temperature.
PG  - 1274-80
LID - 10.1039/b924753j [doi]
AB  - Plastic materials do not generally form irreversible bonds with 
      poly(dimethylsiloxane) (PDMS) regardless of oxygen plasma treatment and a 
      subsequent thermal process. In this paper, we perform plastic-PDMS bonding at 
      room temperature, mediated by the formation of a chemically robust amine-epoxy 
      bond at the interfaces. Various plastic materials, such as 
      poly(methylmethacrylate) (PMMA), polycarbonate (PC), polyimide (PI), and 
      poly(ethylene terephthalate) (PET) were adopted as choices for plastic materials. 
      Irrespective of the plastic materials used, the surfaces were successfully 
      modified with amine and epoxy functionalities, confirmed by the surface 
      characterizations such as water contact angle measurements and X-ray 
      photoelectron spectroscopy (XPS), and chemically robust and irreversible bonding 
      was successfully achieved within 1 h at room temperature. The bonding strengths 
      of PDMS with PMMA and PC sheets were measured to be 180 and 178 kPa, 
      respectively, and their assemblies containing microchannel structures endured up 
      to 74 and 84 psi (510 and 579 kPa) of introduced compressed air, respectively, 
      without destroying the microdevices, representing a robust and highly stable 
      interfacial bonding. In addition to microchannel-molded PDMS bonded with flat 
      plastic substrates, microchannel-embossed plastics were also bonded with a flat 
      PDMS sheet, and both types of bonded assemblies displayed sufficiently robust 
      bonding, tolerating an intense influx of liquid whose per-minute injection volume 
      was nearly 1000 to 2000 times higher than the total internal volume of the 
      microchannel used. In addition to observing the bonding performance, we also 
      investigated the potential of surface amine and epoxy functionalities as durable 
      chemical adhesives by observing their storage-time-dependent bonding 
      performances.
FAU - Tang, Linzhi
AU  - Tang L
AD  - Gachon BioNano Research Institute & Division of BioNano Technology and College of 
      BioNano Technology, Kyungwon University, San 65 Bokjeong-dong, Sujeong-gu, 
      Seongnam, Gyeonggi-do 461-701, Korea.
FAU - Lee, Nae Yoon
AU  - Lee NY
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20100216
PL  - England
TA  - Lab Chip
JT  - Lab on a chip
JID - 101128948
RN  - 0 (Adhesives)
RN  - 0 (Amines)
RN  - 0 (Dimethylpolysiloxanes)
RN  - 0 (Epoxy Compounds)
RN  - 0 (Plastics)
RN  - 0 (Silanes)
RN  - 63148-62-9 (baysilon)
SB  - IM
MH  - Adhesives/chemistry
MH  - Amines/chemistry
MH  - Dimethylpolysiloxanes/*chemistry
MH  - Epoxy Compounds/chemistry
MH  - Feasibility Studies
MH  - Photoelectron Spectroscopy
MH  - Plastics/*chemistry
MH  - Silanes/chemistry
MH  - Surface Properties
MH  - *Temperature
MH  - Time Factors
EDAT- 2010/05/07 06:00
MHDA- 2010/07/17 06:00
CRDT- 2010/05/07 06:00
PHST- 2010/05/07 06:00 [entrez]
PHST- 2010/05/07 06:00 [pubmed]
PHST- 2010/07/17 06:00 [medline]
AID - 10.1039/b924753j [doi]
PST - ppublish
SO  - Lab Chip. 2010 May 21;10(10):1274-80. doi: 10.1039/b924753j. Epub 2010 Feb 16.